id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
2c00e09e3f9f06f8434f5ea2ee6179ce46692ee6 | Analyze and fix the following issue in the Linux kernel code: USB: storage: include US_FL_NO_SAME in quirks mask | Problem Details:
usb_stor_adjust_quirks() parses the usb-storage.quirks module
parameter into a new flag set and then applies it with the quirk
mask to override built-in flags.
The mask is meant to cover the flags that can be overridden by
the module parameter. The 'k' quirk character sets US_FL_NO_SAME,
but US_FL_NO_... | ```diff
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index fa83fe0defe2..064c7fc8e368 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -570,7 +570,7 @@ void usb_stor_adjust_quirks(struct usb_device *udev, u64 *fflags)
US_FL_INITIAL_READ10 | US_FL_WRITE_CACHE |
US_F... |
6eba58568f6cc3ff8515a00b05e258d8cfb72b72 | Analyze and fix the following issue in the Linux kernel code: usb: cdc_acm: Add quirk for Uniden BC125AT scanner | Problem Details:
Uniden BC125AT radio scanner has a USB interface which fails to work
with the cdc_acm driver:
usb 1-1: new full-speed USB device number 2 using uhci_hcd
cdc_acm 1-1:1.0: Zero length descriptor references
cdc_acm 1-1:1.0: probe with driver cdc_acm failed with error -22
usbcore: registered new interf... | ```diff
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 49ab02f25872..7bc5329fa3ed 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1816,6 +1816,9 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x1901, 0x0006), /* GE Healthcare Patient Monito... |
31620fc1c81078746c4794e0eb6de539ab37e695 | Analyze and fix the following issue in the Linux kernel code: xhci: dbc: support runtime suspend while DbC is in enabled state | Problem Details:
Allow xHC to runtime suspend if DbC is in 'enabled' state for over
15 seconds without a connect.
Idea is that every time we go to 'enabled' state we make sure DbC runtime
pm usage is '1' and save a timestamp. if the event loop still finds DbC in
enabled state 15 seconds later then it decrease DbC runt... | ```diff
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
index 98a8376a83d2..991765d84201 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
+++ b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
@@ -22,7 +22,7 @@... |
cf6f56990ea21172e085f0588e5bbf2089ce8f58 | Analyze and fix the following issue in the Linux kernel code: ASoC: fsl_asrc_dma: fix eDMA maxburst misalignment with channel count | Problem Details:
The back-end consumes data in units of the number of channels. When the
maxburst value is not evenly divisible by the channel count, the DMA
transfer length does not align with the FIFO frame boundary, causing
wrong data to be copied and audible noise at the end of the stream.
This is specific to eDMA... | ```diff
diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index 5aa96af994c4..38f2b7c63133 100644
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -288,6 +288,26 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
config_be.dst_addr_width = buswidth... |
8522d806d84e2c3816c275ae6dd79e124c1b3dac | Analyze and fix the following issue in the Linux kernel code: ACPI: TAD: Check AC wake capability before enabling wakeup | Problem Details:
ACPI_TAD_AC_WAKE is a non-zero bit definition, so testing the macro
itself is always true. As a result, every TAD device is initialized as
a system wakeup device, including RTC-only devices and devices whose
wake capability bits were cleared because _PRW is absent.
Test the capability value returned b... | ```diff
diff --git a/drivers/acpi/acpi_tad.c b/drivers/acpi/acpi_tad.c
index cac07e997028..1a60fba59fda 100644
--- a/drivers/acpi/acpi_tad.c
+++ b/drivers/acpi/acpi_tad.c
@@ -852,7 +852,7 @@ static int acpi_tad_probe(struct platform_device *pdev)
* runtime suspend. Everything else should be taken care of by the ACP... |
6dbaa4d288432c697cea47028480481b8b29bd6a | Analyze and fix the following issue in the Linux kernel code: spi: sh-msiof: abort transfers when reset times out | Problem Details:
sh_msiof_spi_reset_regs() asserts TX/RX reset and polls until the reset
bits clear, but the poll result is ignored. sh_msiof_transfer_one() can
therefore continue programming a transfer after the controller did not
leave reset.
Return the reset poll result from the helper and abort the transfer on
tim... | ```diff
diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c
index f23db85a1889..1aeab7ec0bc8 100644
--- a/drivers/spi/spi-sh-msiof.c
+++ b/drivers/spi/spi-sh-msiof.c
@@ -114,7 +114,7 @@ static irqreturn_t sh_msiof_spi_irq(int irq, void *data)
return IRQ_HANDLED;
}
-static void sh_msiof_spi_reset_r... |
f7ecfc3fe5753d10e9c4d0d7955c160ea8cbf0ea | Analyze and fix the following issue in the Linux kernel code: platform/x86: amd-pmc: Fix S0i3 wakeup with alarmtimer | Problem Details:
It was reported that suspend-then-hibernate stopped working with modern
systemd versions on AMD Cezanne systems. The reason for this breakage
was because systemd switched to using alarmtimer instead of the wakealarm
sysfs file.
On AMD Cezanne systems, amd_pmc_verify_czn_rtc() programs a secondary
time... | ```diff
diff --git a/drivers/platform/x86/amd/pmc/pmc.c b/drivers/platform/x86/amd/pmc/pmc.c
index cae3fcafd4d7..07e51e051af3 100644
--- a/drivers/platform/x86/amd/pmc/pmc.c
+++ b/drivers/platform/x86/amd/pmc/pmc.c
@@ -567,9 +567,12 @@ static int amd_pmc_verify_czn_rtc(struct amd_pmc_dev *pdev, u32 *arg)
rtc_device =... |
29b9667982e4df2ed7744f86b1144f8bb58eb698 | Analyze and fix the following issue in the Linux kernel code: ALSA: firewire: isight: bound the sample count to the packet payload | Problem Details:
isight_packet() takes the frame count from the device iso packet and
checks it only against the device claimed iso length.
count = be32_to_cpu(payload->sample_count);
if (likely(count <= (length - 16) / 4))
isight_samples(isight, payload->samples, count);
length is the iso header data_length. It ... | ```diff
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
index 2b7f071d593b..33c9dd48b3b0 100644
--- a/sound/firewire/isight.c
+++ b/sound/firewire/isight.c
@@ -179,7 +179,8 @@ static void isight_packet(struct fw_iso_context *context, u32 cycle,
if (likely(length >= 16 &&
payload->signature == cpu... |
6485da8579e2b0132630faa1ee2ac72ccaf01501 | Analyze and fix the following issue in the Linux kernel code: ALSA: hda: Add Lenovo Legion 7i 16IAX7 17AA3874 quirk | Problem Details:
Lenovo Legion 7i 16IAX7 systems with Realtek ALC287 codec SSID
17aa:3874 and CSC3551/CS35L41 speaker amps do not provide the
required CS35L41 _DSD properties in ACPI.
Without a quirk, cs35l41-hda fails probing the amps with missing
cirrus,dev-index / Platform not supported errors, leaving the built-in... | ```diff
diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 2a7a693ecedf..71625394aa99 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -7767,6 +7767,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
HDA_CODEC_QUIRK(0x17aa, 0x38a8, ... |
7693c0cc415f3a16a7a3355f245474a5e661be4e | Analyze and fix the following issue in the Linux kernel code: ALSA: usb-audio: avoid kobject path lookup in DualSense match | Problem Details:
The DualSense jack-detection input handler verifies that a matching input
device belongs to the same physical controller by building kobject path
strings for both the input device and the USB audio device, then comparing
the path prefix.
This was observed when a weak physical connection caused the con... | ```diff
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index f6f2bc8e97a7..10792d26fa94 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -577,46 +577,30 @@ static bool snd_dualsense_ih_match(struct input_handler *handler,
{
struct dualsense_mixer_elem_info *mei;
struct usb_... |
00e44a68efef50f65b12854b41f098b4d50f10be | Analyze and fix the following issue in the Linux kernel code: ALSA: hda/realtek: Add quirk for Acer Nitro ANV15-41 | Problem Details:
The Acer Nitro ANV15-41 laptop with ALC245 codec does not
detect the headset microphone in the combo jack by default.
Apply the ALC2XX_FIXUP_HEADSET_MIC quirk to fix it.
Signed-off-by: Oleg Kucheryavenko <oleg.kucheryavenko2018@gmail.com>
Link: https://patch.msgid.link/20260624191301.10162-1-oleg.kuch... | ```diff
diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 0d932f6ae3e8..2a7a693ecedf 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -6813,6 +6813,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1025, 0x169a, "A... |
806a66f926c2b6652aeb88983d01f25081b41a73 | Analyze and fix the following issue in the Linux kernel code: arm64: tegra: Fix CPU1 node unit-address on Tegra264 | Problem Details:
Fix the unit-address of cpu1 node to match its reg property value.
Fixes: f6d1890e5f4d ("arm64: tegra: Add device tree for Tegra264")
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com> | ```diff
diff --git a/arch/arm64/boot/dts/nvidia/tegra264.dtsi b/arch/arm64/boot/dts/nvidia/tegra264.dtsi
index 3dfdd7bb28a9..2d2cb1a3d95c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264.dtsi
@@ -4070,7 +4070,7 @@
d-cache-sets = <256>;
};
- cpu1: cpu@1 {
+ cpu1:... |
0dfa1e960f86e032007882b032c5cc7d14ebe73e | Analyze and fix the following issue in the Linux kernel code: arm64: tegra: Fix CPU compatible string to cortex-a78ae on Tegra234 | Problem Details:
The Tegra234 SoC uses Cortex-A78AE cores, not Cortex-A78. Update the
compatible string for all CPU nodes to match the actual hardware.
Tegra234 hardware reports:
# head /proc/cpuinfo | egrep 'implementer|part'
CPU implementer : 0x41
CPU part : 0xd42
Which maps to (from arch/arm64/include... | ```diff
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 8e0c51e496e2..820670dd6042 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -5355,7 +5355,7 @@
#size-cells = <0>;
cpu0_0: cpu@0 {
- compatible =... |
50ccdc31010ed623e68e496aebd4b1d3d8430664 | Analyze and fix the following issue in the Linux kernel code: rtc: s35390a: fix typo in comment | Problem Details:
Fix trivial typo
Link: https://patch.msgid.link/20260624204223.1479003-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> | ```diff
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index 31394f34fb70..b72eef4fb099 100644
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -297,7 +297,7 @@ static int s35390a_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
else
sts = S35390A_INT2_MODE_NOINTR;
... |
0379d10f09bc21ba739636796669dfb4936172a3 | Analyze and fix the following issue in the Linux kernel code: LoongArch: BPF: Fix off-by-one error in tail call | Problem Details:
The current code updates the tail call counter (TCC) using a pre-increment
approach, it stores the incremented value back to memory before performing
any boundary or target validation checks.
This causes two major issues:
1. When a tail call fails because the target program is NULL, the TCC is
inco... | ```diff
diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c
index a2a42c0a0f9d..99294f930914 100644
--- a/arch/loongarch/net/bpf_jit.c
+++ b/arch/loongarch/net/bpf_jit.c
@@ -324,12 +324,12 @@ static int emit_bpf_tail_call(struct jit_ctx *ctx, int insn)
*/
emit_insn(ctx, ldd, REG_TCC, LOONGARCH... |
25d9127bb0e27275d55a5b3d0fd30b04bafffd5a | Analyze and fix the following issue in the Linux kernel code: LoongArch: BPF: Fix outdated tail call comments | Problem Details:
The current LoongArch BPF JIT implementation hardcodes the number of
prologue instructions skipped during a tail call as a magic number '7'
in the jirl instruction. However, the accompanying comment explaining
this offset is completely outdated. It inaccurately states that only
a single TCC initializat... | ```diff
diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c
index 058ffbbaad85..a2a42c0a0f9d 100644
--- a/arch/loongarch/net/bpf_jit.c
+++ b/arch/loongarch/net/bpf_jit.c
@@ -9,7 +9,13 @@
#define LOONGARCH_MAX_REG_ARGS 8
+#define LOONGARCH_SAVE_RA_NINSNS 1
#define LOONGARCH_LONG_JUMP_NINSNS ... |
70378a710598432f13509bdc16a1c0f06b3ecb53 | Analyze and fix the following issue in the Linux kernel code: LoongArch: Fix nr passing in set_direct_map_valid_noflush() | Problem Details:
set_direct_map_valid_noflush() incorrectly passes 1 to __set_memory()
instead of nr. This causes only the first page's attr to be updated when
nr > 1.
Other architectures all pass nr correctly.
Cc: stable@vger.kernel.org
Fixes: 0c6378a71574 ("arch: introduce set_direct_map_valid_noflush()")
Signed-of... | ```diff
diff --git a/arch/loongarch/mm/pageattr.c b/arch/loongarch/mm/pageattr.c
index f5e910b68229..614ccc7afccb 100644
--- a/arch/loongarch/mm/pageattr.c
+++ b/arch/loongarch/mm/pageattr.c
@@ -234,5 +234,5 @@ int set_direct_map_valid_noflush(struct page *page, unsigned nr, bool valid)
clear = __pgprot(_PAGE_PRESEN... |
018e9828eb523c638fa3d9bdf0fd4956b74555b2 | Analyze and fix the following issue in the Linux kernel code: LoongArch: Fix missing dirty page tracking in {pte,pmd}_wrprotect() | Problem Details:
When hardware page table walker (PTW) is enabled on LoongArch, the CPU
may set _PAGE_DIRTY directly in the page table entry during a write TLB
miss, without going through the software TLB store handler. The software
TLB store handler (tlbex.S:254) sets both _PAGE_DIRTY and_PAGE_MODIFIED
together:
... | ```diff
diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h
index 2a0b63ae421f..223528c04d73 100644
--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -429,6 +429,8 @@ static inline pte_t pte_mkwrite_novma(pte_t pte)
static inline pte_t pte_w... |
d4e58d2c21d94282d512979dfa7e045c5034b0be | Analyze and fix the following issue in the Linux kernel code: LoongArch: Move struct kimage forward declaration before use | Problem Details:
arch_kimage_file_post_load_cleanup() and load_other_segments(), both
inside the CONFIG_KEXEC_FILE block, take a struct kimage pointer before
the forward declaration appears. Move the forward declaration above so
it precedes its first use instead of relying on a transitive include.
Fixes: d162feec6b6e ... | ```diff
diff --git a/arch/loongarch/include/asm/kexec.h b/arch/loongarch/include/asm/kexec.h
index 209fa43222e1..6be136e9f0a0 100644
--- a/arch/loongarch/include/asm/kexec.h
+++ b/arch/loongarch/include/asm/kexec.h
@@ -41,6 +41,8 @@ struct kimage_arch {
unsigned long systable_ptr;
};
+struct kimage;
+
#ifdef CONF... |
f2539c56c74691e7a88af6372ba2b48c06ed2fe4 | Analyze and fix the following issue in the Linux kernel code: LoongArch: Report dying CPU to RCU in stop_this_cpu() | Problem Details:
This is a port of MIPS commit 9f3f3bdc6d9dac1 ("MIPS: smp: report dying
CPU to RCU in stop_this_cpu()"). smp_send_stop() parks all secondary
CPUs in stop_this_cpu(). And the function marks the CPU offline for the
scheduler via set_cpu_online(false) but never informs RCU, so RCU keeps
expecting a quiesc... | ```diff
diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index b4fb45440d65..38ae08e613c7 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -707,6 +707,7 @@ static void stop_this_cpu(void *dummy)
set_cpu_online(smp_processor_id(), false);
calculate_cpu_foreign_map()... |
7b5944d6ed369e43aeaf37beba9f89f7fb6c633b | Analyze and fix the following issue in the Linux kernel code: LoongArch: Add THREAD_INFO_IN_TASK implementation | Problem Details:
Like other architectures such as x86, arm64, riscv, powerpc and s390,
select THREAD_INFO_IN_TASK for LoongArch to move thread_info off the
stack into task_struct. This follows modern kernel standards and also
makes the system more secure.
With this patch, thread_info is included in task_struct at an o... | ```diff
diff --git a/Documentation/features/core/thread-info-in-task/arch-support.txt b/Documentation/features/core/thread-info-in-task/arch-support.txt
index f3d744c76061..e26efdfbb6b4 100644
--- a/Documentation/features/core/thread-info-in-task/arch-support.txt
+++ b/Documentation/features/core/thread-info-in-task/ar... |
bf5cd5d4ca423d348e01b3bbcdccd0e02b1b408b | Analyze and fix the following issue in the Linux kernel code: net: stmmac: dwmac-spacemit: Fix wrong irq definition | Problem Details:
The current irq definition of the wake irq and the lpi irq
is wrong, replace them with the right number and name.
Fixes: 30f0ba420ed3 ("net: stmmac: Add glue layer for Spacemit K3 SoC")
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Li... | ```diff
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c
index 3bfb6d49be6c..322bdf167a4a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c
@@ -22,8 +22,8 @@
#define CTRL_P... |
d1e3a4c3b24d4430d9987a3f349c6c2a959a389a | Analyze and fix the following issue in the Linux kernel code: net: stmmac: dwmac-spacemit: Fix wrong phy interface definition | Problem Details:
The current MII interface register definition from the vendor is wrong,
use the right number for the macro. Also, correct the interface mask
in spacemit_set_phy_intf_sel() so it can update the register with the
right number
Fixes: 30f0ba420ed3 ("net: stmmac: Add glue layer for Spacemit K3 SoC")
Signed... | ```diff
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c
index 223754cc5c79..3bfb6d49be6c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c
@@ -18,8 +18,10 @@
#include "stm... |
a9e29dcd8a84081177f693439d663ca9e216c9fa | Analyze and fix the following issue in the Linux kernel code: net: ethernet: sunplus: spl2sw: fix phy_node refcount leak in remove | Problem Details:
mac->phy_node is acquired via of_parse_phandle() in spl2sw_probe() and
stored in the mac private data, transferring ownership of the
device_node reference to mac. On driver removal, spl2sw_phy_remove()
disconnects the PHY but never drops that reference, so each
probe-then-remove cycle leaks one of_node... | ```diff
diff --git a/drivers/net/ethernet/sunplus/spl2sw_phy.c b/drivers/net/ethernet/sunplus/spl2sw_phy.c
index 6f899e48f51d..a4889c52e00e 100644
--- a/drivers/net/ethernet/sunplus/spl2sw_phy.c
+++ b/drivers/net/ethernet/sunplus/spl2sw_phy.c
@@ -79,12 +79,14 @@ int spl2sw_phy_connect(struct spl2sw_common *comm)
void ... |
36dea2f639249460d13f6ca66b2a9064187cd34d | Analyze and fix the following issue in the Linux kernel code: net: sungem: fix probe error cleanup | Problem Details:
gem_init_one() calls gem_remove_one() when register_netdev() fails.
gem_remove_one() unregisters and frees resources owned by the net_device,
including the DMA block, MMIO mapping, PCI regions, and the net_device
itself. gem_init_one() then falls through to its own cleanup labels and
frees the same res... | ```diff
diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c
index b56a0d4cdb12..dc5638d105db 100644
--- a/drivers/net/ethernet/sun/sungem.c
+++ b/drivers/net/ethernet/sun/sungem.c
@@ -2978,10 +2978,10 @@ static int gem_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
dev-... |
5ba9950bc9078e19b69cca1e56d1553b125c6857 | Analyze and fix the following issue in the Linux kernel code: net/tcp-ao: fix use-after-free of key in del_async path | Problem Details:
In tcp_ao_delete_key(), the del_async path skips the current_key
and rnext_key validity checks present in the synchronous path,
assuming these pointers are always NULL on LISTEN sockets. However,
if a key was added with set_current=1/set_rnext=1 while the socket
was in CLOSE state, current_key and rne... | ```diff
diff --git a/net/ipv4/tcp_ao.c b/net/ipv4/tcp_ao.c
index 2f69bcecae78..a56bb79e15e0 100644
--- a/net/ipv4/tcp_ao.c
+++ b/net/ipv4/tcp_ao.c
@@ -1747,6 +1747,10 @@ static int tcp_ao_delete_key(struct sock *sk, struct tcp_ao_info *ao_info,
* them and we can just free all resources in RCU fashion.
*/
if (de... |
8c37e76f960b7a201556e954b987b431820995ee | Analyze and fix the following issue in the Linux kernel code: tools: ynl: build archives with $(AR) | Problem Details:
Use $(AR) to allow build system to override the archiver tool (e.g.,
when cross-compiling for a different architecture) by setting the AR
environment variable.
GNU Make defaults AR to ar, so this change will not break existing build
environments that do not explicitly set AR.
Fixes: 07c3cc51a085 ("to... | ```diff
diff --git a/tools/net/ynl/Makefile b/tools/net/ynl/Makefile
index d514a48dae27..3cefe4ed96cb 100644
--- a/tools/net/ynl/Makefile
+++ b/tools/net/ynl/Makefile
@@ -22,7 +22,7 @@ tests: | lib generated libynl.a
ynltool: | lib generated libynl.a
libynl.a: | lib generated
@echo -e "\tAR $@"
- @ar rcs $@ lib/ynl... |
87ab8276ed24d688febfef4d0c1794896e778192 | Analyze and fix the following issue in the Linux kernel code: eth: mlx5: fix macsec dependency | Problem Details:
Configurations with mlx5 built-in but macsec=m fail to link:
x86_64-linux-ld: drivers/infiniband/hw/mlx5/macsec.o: in function `mlx5r_add_gid_macsec_operations':
macsec.c:(.text+0x77d): undefined reference to `macsec_netdev_is_offloaded'
x86_64-linux-ld: drivers/infiniband/hw/mlx5/macsec.o: in functio... | ```diff
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
index 3c3e84100d5a..925ee25d05b4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
@@ -143,7 +143,7 @@ config MLX5_CORE_IPOIB
config ML... |
47b6bcef6e679593d2e86e04ee72c46a4e2f7139 | Analyze and fix the following issue in the Linux kernel code: net: usb: kalmia: bound RX frame length in kalmia_rx_fixup() | Problem Details:
kalmia_rx_fixup() computes usb_packet_length = skb->len - (2 *
KALMIA_HEADER_LENGTH) as a u16, guarded only by a pre-loop check that
skb->len is at least KALMIA_HEADER_LENGTH, which is 6. A device can
deliver a short bulk-IN frame with skb->len in the 6 to 11 range, or
leave a short trailing remainder ... | ```diff
diff --git a/drivers/net/usb/kalmia.c b/drivers/net/usb/kalmia.c
index ee9c48f7f68f..0dd0a30c3db4 100644
--- a/drivers/net/usb/kalmia.c
+++ b/drivers/net/usb/kalmia.c
@@ -276,6 +276,14 @@ kalmia_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
"Received header: %6phC. Package length: %i\n",
header_st... |
cbb0d30a1ad6fc9439b1dc9b4f5a7a9140d3b11f | Analyze and fix the following issue in the Linux kernel code: geneve: validate inner network offset in geneve_gro_complete() | Problem Details:
Even with both paths gated on gs->gro_hint, geneve_gro_complete()
re-derives the inner dispatch type and length from the packet and the
current gs->gro_hint, independently of geneve_gro_receive(). The two can
disagree if gs->gro_hint flips under a concurrent geneve_quiesce()/
geneve_unquiesce() (sk_use... | ```diff
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 7cf7aaac8ee1..396e1a113cd4 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -962,6 +962,20 @@ static int geneve_gro_complete(struct sock *sk, struct sk_buff *skb,
type = gh->proto_type;
geneve_sk_gro_hint_off(sk, gh, &type, &gh_le... |
2651c174445884ac9e85622aeade9c1f7b98d8e5 | Analyze and fix the following issue in the Linux kernel code: geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint | Problem Details:
geneve_gro_receive() reads the GRO hint through geneve_sk_gro_hint_off(),
which honours it only when the socket enabled IFLA_GENEVE_GRO_HINT
(gs->gro_hint). geneve_gro_complete() instead calls the low-level
geneve_opt_gro_hint_off() and acts on the hint unconditionally.
On a tunnel without the hint, r... | ```diff
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 9afff7bcaa0b..7cf7aaac8ee1 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -954,13 +954,13 @@ static int geneve_gro_complete(struct sock *sk, struct sk_buff *skb,
struct genevehdr *gh;
struct packet_offload *ptype;
__be16 type;... |
fd398d6480987e4c84fff0aaab6b9d6642a93343 | Analyze and fix the following issue in the Linux kernel code: net: mvneta: re-enable percpu interrupt on resume | Problem Details:
On Marvell MPIC platforms (Armada 370/XP/38x), mvneta uses a percpu
IRQ disable/enable scheme for NAPI: the ISR (mvneta_percpu_isr) calls
disable_percpu_irq() to mask the MPIC per-CPU interrupt and schedules
NAPI poll, which calls enable_percpu_irq() on completion to unmask.
If suspend occurs while NA... | ```diff
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 0c061fb0ed07..744d6585a949 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -5900,6 +5900,9 @@ static int mvneta_resume(struct device *device)
rtnl_unlock();
mvne... |
469f4462ec83119e8bc0e4699ad01d80a9a4c61a | Analyze and fix the following issue in the Linux kernel code: octeontx2-af: fix CGX debugfs RVU AF PCI reference leaks | Problem Details:
CGX per-lmac debugfs seq readers obtained struct rvu via
pci_get_drvdata(pci_get_device(..., PCI_DEVID_OCTEONTX2_RVU_AF, ...)),
which leaks a PCI device reference on every read. Store rvu and the CGX
handle in debugfs inode private data when creating stats, mac_filter,
and fwdata files (one context per... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index ca2704b188a5..3456313d3b3c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -2810,6 +2810,14 @... |
1576d12a39860418d6a68b402fda71a48f04a57c | Analyze and fix the following issue in the Linux kernel code: octeontx2-af: Validate NIX maximum LFs correctly | Problem Details:
NIX maximum number of LFs can be set via devlink command
but that can be done before assigning any LFs to a PF/VF.
The condition used to check whether any LFs are assigned is
incorrect. This patch fixes that condition.
Fixes: dd7842878633 ("octeontx2-af: Add new devlink param to configure maximum usab... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
index aa3ecab5ebd8..d63c3d33775a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
@@ -1511,7 +1511,9 @@... |
2bd6f26d4ce1e87de4d736b1e8896daf3acf1c0e | Analyze and fix the following issue in the Linux kernel code: net: wwan: t7xx: destroy DMA pool on CLDMA late init failure | Problem Details:
t7xx_cldma_late_init() creates md_ctrl->gpd_dmapool before
initializing the TX and RX rings. If any ring initialization
fails, the error path frees the already initialized rings but
leaves the DMA pool allocated.
Destroy md_ctrl->gpd_dmapool on the late-init failure path
to avoid leaking the DMA pool.... | ```diff
diff --git a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c
index e10cb4f9104e..2917cee9b802 100644
--- a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c
+++ b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c
@@ -1063,6 +1063,9 @@ err_free_tx_ring:
while (i--)
t7xx_cldma_ring_free(md_ctrl, &m... |
6117098309452c641af4458a0f7c02888b026fb6 | Analyze and fix the following issue in the Linux kernel code: net: airoha: fix BQL underflow in shared QDMA TX ring | Problem Details:
When multiple netdevs share a QDMA TX ring and one device is stopped,
netdev_tx_reset_subqueue() zeroes that device's BQL counters while its
pending skbs remain in the shared HW TX ring. When NAPI later completes
those skbs via netdev_tx_completed_queue(), the already-zeroed
dql->num_queued counter und... | ```diff
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 986fa4685bf9..932b3a3df2e5 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -1004,6 +1004,7 @@ static int airoha_qdma_tx_napi_poll(struct napi_struct *nap... |
510a283f4d12367a3f811f382a2c89202954bbd1 | Analyze and fix the following issue in the Linux kernel code: net: phy: realtek: Clear MDIO_AN_10GBT_CTRL_ADV10G bit | Problem Details:
On RTL8127A connected to a link partner that advertises 10000baseT
speed cannot be changed to anything other than 10000baseT as 10GbE
is always advertised regardless of any setting. Fix this by
clearing MDIO_AN_10GBT_CTRL_ADV10G bit in rtl822x_config_aneg()'s
call to phy_modify_mmd_changed().
Fixes: 8... | ```diff
diff --git a/drivers/net/phy/realtek/realtek_main.c b/drivers/net/phy/realtek/realtek_main.c
index 27268811f564..b65d0f5fa1a0 100644
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -1802,7 +1802,8 @@ static int rtl822x_config_aneg(struct phy_device *phydev)
ret = ... |
429ef02895db2de55cc2286d27b3d4310c42ada7 | Analyze and fix the following issue in the Linux kernel code: octeontx2-af: npc: cn20k: Fix subbank free list indexing for search order | Problem Details:
subbank_srch_order[i] is the physical subbank at search-order slot i,
so each subbank's arr_idx must be i (its slot), not
subbank_srch_order[sb->idx]. The old logic mis-keyed xa_sb_free
and broke allocation traversal order.
Populate arr_idx and xa_sb_free in a single pass over the search
order after ... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c
index 9052b88f3685..3070700b952b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c
@@ -3423,6 +3423,36 @@ static... |
6bd81a5b4e0dbec2feb94a456bca9d9f00bc14b3 | Analyze and fix the following issue in the Linux kernel code: net: mana: Fall back to standard MTU when PF reports adapter_mtu of 0 | Problem Details:
Commit d7709812e13d ("net: mana: hardening: Validate adapter_mtu from
MANA_QUERY_DEV_CONFIG") rejected any adapter_mtu value smaller than
ETH_MIN_MTU + ETH_HLEN, including 0, returning -EPROTO and failing
mana_probe().
Some older PF firmware versions still in the field report
adapter_mtu as 0 in the M... | ```diff
diff --git a/drivers/net/ethernet/microsoft/mana/mana_bpf.c b/drivers/net/ethernet/microsoft/mana/mana_bpf.c
index b5e9bb184a1d..53308e139cbe 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_bpf.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_bpf.c
@@ -237,7 +237,8 @@ static int mana_xdp_set(struct net_de... |
bcb3b8314611ed9cb4ff4bff484ef9b154fd1b83 | Analyze and fix the following issue in the Linux kernel code: net: dsa: mxl862xx: fix use-after-free of DSA ports in crc_err_work | Problem Details:
Upon an MDIO CRC error mxl862xx_crc_err_work_fn() walks the DSA ports
and closes the CPU port conduits:
dsa_switch_for_each_cpu_port(dp, priv->ds)
dev_close(dp->conduit);
mxl862xx_remove() unregisters the switch before cancelling this work:
set_bit(MXL862XX_FLAG_WORK_STOPPED, &priv->flags);
can... | ```diff
diff --git a/drivers/net/dsa/mxl862xx/mxl862xx-host.c b/drivers/net/dsa/mxl862xx/mxl862xx-host.c
index 882c5d960941..4acd216f7cc0 100644
--- a/drivers/net/dsa/mxl862xx/mxl862xx-host.c
+++ b/drivers/net/dsa/mxl862xx/mxl862xx-host.c
@@ -41,12 +41,13 @@ static void mxl862xx_crc_err_work_fn(struct work_struct *work... |
6b3f7af57881f6d6250c6dcc4d910fe8e855a607 | Analyze and fix the following issue in the Linux kernel code: net: dsa: mxl862xx: avoid unaligned 16-bit access in api_wrap | Problem Details:
The MXL862XX_API_* macros pass the address of a stack-allocated, __packed
firmware-ABI struct to mxl862xx_api_wrap() as a void *. The struct has an
alignment of 1, so the compiler is free to place it at an odd address.
mxl862xx_api_wrap() reinterprets that buffer as a __le16 * and accesses it
with dat... | ```diff
diff --git a/drivers/net/dsa/mxl862xx/mxl862xx-host.c b/drivers/net/dsa/mxl862xx/mxl862xx-host.c
index d55f9dff6433..882c5d960941 100644
--- a/drivers/net/dsa/mxl862xx/mxl862xx-host.c
+++ b/drivers/net/dsa/mxl862xx/mxl862xx-host.c
@@ -12,6 +12,7 @@
#include <linux/crc16.h>
#include <linux/iopoll.h>
#include ... |
056a5087d87ead77dedbe9cf5bde53b7cd4b4651 | Analyze and fix the following issue in the Linux kernel code: net: dsa: realtek: fix memory leak in rtl8366rb_setup_led() | Problem Details:
led_classdev_register_ext() only reads init_data.devicename - it never
stores the pointer. However, the caller allocated devicename with
kasprintf() but never freed it, leaking the string memory.
Fix it with a stack buffer to avoid dynamic buffers completely.
Fixes: 32d617005475 ("net: dsa: realtek: ... | ```diff
diff --git a/drivers/net/dsa/realtek/rtl8366rb-leds.c b/drivers/net/dsa/realtek/rtl8366rb-leds.c
index 509ffd3f8db5..ba50d311cb15 100644
--- a/drivers/net/dsa/realtek/rtl8366rb-leds.c
+++ b/drivers/net/dsa/realtek/rtl8366rb-leds.c
@@ -89,6 +89,7 @@ static int rtl8366rb_setup_led(struct realtek_priv *priv, struc... |
db818b0e8af7bac16860116a19c341a63d6677b4 | Analyze and fix the following issue in the Linux kernel code: net: ixp4xx_hss: fix duplicate HDLC netdev allocation | Problem Details:
ixp4xx_hss_probe() allocates two HDLC netdevs. The first one is stored
in ndev, initialized, and registered with register_hdlc_device(). The
second one is stored in port->netdev and later used by the remove path
for unregister_hdlc_device() and free_netdev().
This means that the registered netdev is n... | ```diff
diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c
index 720c5dc889ea..7f4645ff90aa 100644
--- a/drivers/net/wan/ixp4xx_hss.c
+++ b/drivers/net/wan/ixp4xx_hss.c
@@ -1487,11 +1487,11 @@ static int ixp4xx_hss_probe(struct platform_device *pdev)
"unable to get CLK internal GPIO\n");... |
788663dd28e424639318842ba5ae290672528609 | Analyze and fix the following issue in the Linux kernel code: net: airoha: fix netif_set_real_num_tx_queues for sparse QoS channels | Problem Details:
airoha_tc_htb_alloc_leaf_queue() assigns queue IDs based on the channel
index (opt->qid = AIROHA_NUM_TX_RING + channel), but updates
real_num_tx_queues with a simple increment (num_tx_queues + 1). When QoS
channels are allocated sparsely (e.g., channels 0 and 3 without 1 and
2), the returned qid can ex... | ```diff
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 1d38f9f84815..986fa4685bf9 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -2789,7 +2789,7 @@ static int airoha_tc_htb_alloc_leaf_queue(struct net_device... |
bfcce49c4aaab9339ef7b9a7fa4d8ac5a19cc820 | Analyze and fix the following issue in the Linux kernel code: net: airoha: Fix off-by-one in airoha_tc_remove_htb_queue() | Problem Details:
airoha_tc_htb_alloc_leaf_queue() computes the HTB QoS channel index
as opt->classid % AIROHA_NUM_QOS_CHANNELS and stores it in qos_sq_bmap.
However, airoha_tc_remove_htb_queue() clears the HTB configuration
using queue + 1 as the channel index, causing an off-by-one error.
Use queue directly as the QoS... | ```diff
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 2eab69c81dcf..1d38f9f84815 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -3006,7 +3006,7 @@ static void airoha_tc_remove_htb_queue(struct net_device *n... |
72c8646956ffc8050bb8be5988a0f28fc37e1ac4 | Analyze and fix the following issue in the Linux kernel code: tracing: probes: fix typo in a log message | Problem Details:
Fix a typo ("Invalid $-variable") in a log message.
Link: https://lore.kernel.org/all/20260507081041.885781-4-martin@kaiser.cx/
Fixes: ab105a4fb894 ("tracing: Use tracing error_log with probe events")
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@k... | ```diff
diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index 15758cc11fc6..0f09f7aaf93f 100644
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -511,7 +511,7 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call,
C(NO_RETVAL, "This function returns '... |
115d1ce989747045bd7745c7ab020982660c7e42 | Analyze and fix the following issue in the Linux kernel code: sched_ext: Annotate ksyncs with __rcu in alloc/free_kick_syncs() | Problem Details:
scx_kick_syncs is a per-CPU __rcu pointer, so per_cpu_ptr() returns struct
scx_kick_syncs __rcu **. alloc_kick_syncs() and free_kick_syncs() stored it
in a plain struct scx_kick_syncs **ksyncs, which sparse flags as an __rcu
address-space mismatch. Annotate ksyncs to match. Its accesses already go
thro... | ```diff
diff --git a/kernel/sched/ext/ext.c b/kernel/sched/ext/ext.c
index 5418e6357249..aecbb021d6d7 100644
--- a/kernel/sched/ext/ext.c
+++ b/kernel/sched/ext/ext.c
@@ -5687,7 +5687,7 @@ static void free_kick_syncs(void)
int cpu;
for_each_possible_cpu(cpu) {
- struct scx_kick_syncs **ksyncs = per_cpu_ptr(&scx_... |
5c94a3ab6ed94ff1257631a49893a535098be0b6 | Analyze and fix the following issue in the Linux kernel code: sched_ext: Check remote rq eligibility under task's rq lock | Problem Details:
task_can_run_on_remote_rq() operates under the assumption that
p->migration_disabled is stable, i.e. if the kernel observed
is_migration_disabled(p) == true, then the BPF scheduler must have also
been able to see this when dispatching the task, and it's the BPF
scheduler's fault that it tried to dispat... | ```diff
diff --git a/kernel/sched/ext/ext.c b/kernel/sched/ext/ext.c
index 5efc97437c0a..5418e6357249 100644
--- a/kernel/sched/ext/ext.c
+++ b/kernel/sched/ext/ext.c
@@ -2307,6 +2307,7 @@ static void move_remote_task_to_local_dsq(struct task_struct *p, u64 enq_flags,
* no to the BPF scheduler initiated migrations ... |
a5bb580df018b5d1c5668f05f7979044fb19e23a | Analyze and fix the following issue in the Linux kernel code: rtc: cmos: unregister HPET IRQ handler on probe failure | Problem Details:
cmos_do_probe() registers cmos_interrupt() as the HPET RTC IRQ
handler before requesting the RTC IRQ and registering the RTC
device. If either request_irq() or devm_rtc_register_device()
fails afterwards, the error path leaves the HPET RTC IRQ handler
installed. This leaves a stale handler behind and m... | ```diff
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index f89ab58f5048..fa04ece151b8 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -934,6 +934,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
unsigned char rtc_control;
unsigned address_space;
u... |
6882aab3c66112b33b251be95c09c8ead3e8d580 | Analyze and fix the following issue in the Linux kernel code: rtc: ds1307: Fix off-by-one issue with wday for rx8130 | Problem Details:
The RTC represent each weekday with a individual bit set in the WDAY
register, where the 0th bit represent the first day of the week and the
6th bit represents the last day of the week. For each passed day the
chip performs a rotary-left-shift by one to advance the weekday by one.
The tm_wday field re... | ```diff
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 8fc258d5a1f4..a77580c4eea7 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -311,7 +311,7 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t)
t->tm_hour = bcd2bin(tmp);
/* rx8130 is bit position, ... |
5771e79e461e72140b752496b69275b9e6bd1a75 | Analyze and fix the following issue in the Linux kernel code: sched_ext: Reset dsq_vtime and slice when a task leaves SCX | Problem Details:
When a task leaves the BPF scheduler's control, p->scx.dsq_vtime and
p->scx.slice keep whatever values they last held. The slice value is
core-managed and is refilled on the next enqueue, but dsq_vtime is owned
by the BPF scheduler and is never cleared by the core, so a task that
leaves SCX and later r... | ```diff
diff --git a/kernel/sched/ext/ext.c b/kernel/sched/ext/ext.c
index d62b93f48a85..5efc97437c0a 100644
--- a/kernel/sched/ext/ext.c
+++ b/kernel/sched/ext/ext.c
@@ -3647,6 +3647,13 @@ static void scx_disable_task(struct scx_sched *sch, struct task_struct *p)
SCX_CALL_OP_TASK(sch, disable, rq, p);
scx_set_tas... |
46d65096ce8d278abf4528e254878c14ddd0b459 | Analyze and fix the following issue in the Linux kernel code: Docs/admin-guide/cgroup-v2: fix memory.stat doc details | Problem Details:
Fix minor cgroup v2 memory.stat documentation issues. Correct the
vmalloc per-node marker now that vmalloc uses the native NR_VMALLOC node
stat, and document zswap_incomp as a byte-valued memory amount instead
of as a page counter.
Fixes: c466412c73c3 ("mm: memcontrol: switch to native NR_VMALLOC vms... | ```diff
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 993446ab66d0..ce6741f78f4f 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1570,7 +1570,7 @@ The following nested keys are defined.
sock (npn)
Amount... |
245404c26563aafb36aafb01298f148db1851be3 | Analyze and fix the following issue in the Linux kernel code: spi: imx: reconfigure for PIO when DMA cannot be started | Problem Details:
When spi_imx_can_dma() selects DMA, the ECSPI is configured for DMA:
spi_imx_setupxfer() sets CTRL.SMC and clears dynamic_burst, and
spi_imx_dma_transfer() programs the dynamic-burst BURST_LENGTH and the
SDMA watermarks.
If the DMA descriptor cannot be prepared (dmaengine_prep_slave_single()
returns N... | ```diff
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index ae9912905c67..79a6c1a60b0a 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -2152,7 +2152,8 @@ static int spi_imx_transfer_one(struct spi_controller *controller,
if (spi_imx->usedma) {
ret = spi_imx_dma_transfer(spi_imx, tran... |
2a4b3d2db5c6fcdba889baf7b2ae5661b0beac89 | Analyze and fix the following issue in the Linux kernel code: smb/client: preserve errors from smb2_set_sparse() | Problem Details:
smb2_set_sparse() converts every FSCTL_SET_SPARSE failure to false and
marks sparse support as broken for the share. Callers therefore report
EOPNOTSUPP even for errors such as ENOSPC or EACCES, and later sparse
operations remain disabled until the share is unmounted.
Return the SMB2 ioctl error direc... | ```diff
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index c862a98e52df..06e9322a762a 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -2117,8 +2117,9 @@ smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid,
}
/* Set or clear the SPARSE_FILE attribute based on value p... |
1c6267a1d5cf4c73b656f8181b310cbbb3e4767b | Analyze and fix the following issue in the Linux kernel code: smb: client: Fix next buffer leak in receive_encrypted_standard() | Problem Details:
receive_encrypted_standard() allocates next_buffer before checking
whether the number of compound PDUs already reached MAX_COMPOUND. If
the limit check fails, the function returns immediately and the newly
allocated next_buffer is not assigned to server->smallbuf/server->bigbuf,
making it leaked.
Move... | ```diff
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index 2964f461fc84..c862a98e52df 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -5111,6 +5111,12 @@ receive_encrypted_standard(struct TCP_Server_Info *server,
one_more:
shdr = (struct smb2_hdr *)buf;
next_cmd = le32_to_cp... |
2c253f230a31d4394f6f926a73f5e157ad88d347 | Analyze and fix the following issue in the Linux kernel code: smb/client: use %pe to print error pointer | Problem Details:
Currently, __reconnect_target_locked() prints the error pointer
'hostname' using PTR_ERR() and %ld, printing only the error code.
Fix this by using by using %pe to print the error symbolic code instead,
and remove PTR_ERR().
Signed-off-by: Fredric Cover <fredric.cover.lkernel@gmail.com>
Signed-off-by... | ```diff
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index 74197766471c..85aec302c89e 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -457,8 +457,8 @@ static int __reconnect_target_locked(struct TCP_Server_Info *server,
server->hostname = hostname;
spin_unlock(&server->... |
760ef2c579c2609cf17fb1cd5392f64d42d43d33 | Analyze and fix the following issue in the Linux kernel code: smb/client: fix chown/chgrp with SMB3 POSIX Extensions | Problem Details:
Ownership (chown) and group (chgrp) modifications were being ignored when
mounting with SMB3 POSIX Extensions unless CIFS_MOUNT_CIFS_ACL or
CIFS_MOUNT_MODE_FROM_SID were also explicitly set.
Fix this by checking for posix_extensions in cifs_setattr_nounix() when
updating UID and GID, ensuring that id_... | ```diff
diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c
index 51fb7c418d52..56b0f109e41b 100644
--- a/fs/smb/client/inode.c
+++ b/fs/smb/client/inode.c
@@ -3376,7 +3376,8 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
if (attrs->ia_valid & ATTR_GID)
gid = attrs->ia_gid;
- if (sbf... |
4939889c985da68936090cc013e58c28b7bff34f | Analyze and fix the following issue in the Linux kernel code: smb/client: fix security flag calculation when setting security descriptors | Problem Details:
In id_mode_to_cifs_acl(), aclflag was initialized to CIFS_ACL_DACL by default.
This forced the client to request setting the DACL even when only an ownership
(chown) or group (chgrp) change was being performed.
Let build_sec_desc() do the proper flag calculation by initializing aclflag
to 0. build_sec... | ```diff
diff --git a/fs/smb/client/cifsacl.c b/fs/smb/client/cifsacl.c
index 5bbf73736358..07cf0e578233 100644
--- a/fs/smb/client/cifsacl.c
+++ b/fs/smb/client/cifsacl.c
@@ -1185,7 +1185,8 @@ set_size:
static __u16 replace_sids_and_copy_aces(struct smb_acl *pdacl, struct smb_acl *pndacl,
struct smb_sid *pownersi... |
36fa5ffa60344bcc59fb3f50b33af8187e6b8753 | Analyze and fix the following issue in the Linux kernel code: arm64: mm: Defer read-only remap of data/bss linear alias | Problem Details:
Since commit
f2ba877402e5 ("arm64: mm: Map the kernel data/bss read-only in the linear map")
the linear alias of the .data and .bss regions is remapped read-only
early during the boot. (Note that a subsequent patch to unmap this
region entirely was reverted just before the v7.2 merge window, and wi... | ```diff
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 354bedf0e638..60c2778f413c 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1198,11 +1198,6 @@ static void __init map_mem(void)
__map_memblock(start, end, pgprot_tagged(PAGE_KERNEL),
flags);
}
-
- /* Map the kernel data/b... |
b39a6b2e9d5bd6a3153aed4c7440172b8f6a739e | Analyze and fix the following issue in the Linux kernel code: dt-bindings: mfd: khadas,mcu: Drop type reference from "fan-supply" | Problem Details:
"fan-supply" already has a type and shouldn't have a type $ref. Drop the
$ref to fix the warning.
Fixes: 39dd85d9246e ("dt-bindings: mfd: khadas: Add new compatible for Khadas VIM4 MCU")
Link: https://patch.msgid.link/20260624133643.4146351-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kern... | ```diff
diff --git a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
index 1f135618e3b6..c6f91e7bc8aa 100644
--- a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
+++ b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
@@ -28,7 +28,6 @@ properties:... |
956ca5d72c76504824c8eb601879da9476973e15 | Analyze and fix the following issue in the Linux kernel code: ACPI: processor_idle: Mark LPI enter functions as __cpuidle | Problem Details:
When function tracing or Kprobes is enabled, entering an ACPI Low
Power Idle (LPI) state triggers the following RCU splat:
RCU not on for: acpi_idle_lpi_enter+0x4/0xd8
WARNING: CPU: 8 PID: 0 at include/linux/trace_recursion.h:162 function_trace_call+0x1e8/0x228
The acpi_idle_lpi_enter() function ... | ```diff
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 390ab5f1d313..4482cf28f56a 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1143,7 +1143,7 @@ static int acpi_processor_get_lpi_info(struct acpi_processor *pr)
return 0;
}
-int __weak acpi_pro... |
38b1d6ed23910a4c7cf7c222d9b3a4fcd282a632 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: clock: renesas: div6: Use ZT/ZTR trace clock in R-Mobile APE6 example | Problem Details:
Since commit 2abdc3dcf978 ("dt-bindings: clock: renesas,cpg-clocks:
Document ZT/ZTR trace clock on R-Mobile APE6"), the APE6 clock node
expects two additional "clock-output-names" entries, "zt" and "ztr".
Update the example accordingly.
Fixes: 2abdc3dcf978 ("dt-bindings: clock: renesas,cpg-clocks: Doc... | ```diff
diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-div6-clock.yaml b/Documentation/devicetree/bindings/clock/renesas,cpg-div6-clock.yaml
index 2197c952e21d..b6ee8c8efd46 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-div6-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/r... |
292db66afd20dd0b7a3c9a3dad9b864a64c8bddf | Analyze and fix the following issue in the Linux kernel code: ACPICA: Unbreak tools build after switching over to strscpy_pad() | Problem Details:
Commit 97f7d3f9c9ac ("ACPICA: Replace strncpy() with strscpy_pad() in
acpi_ut_safe_strncpy()") switched over the ACPICA code in the kernel to
using strscpy_pad() instead of a combination of strncpy() and manual
NUL-termination of the destination string, but it overlooked the fact
that tools also use th... | ```diff
diff --git a/drivers/acpi/acpica/utnonansi.c b/drivers/acpi/acpica/utnonansi.c
index 3a7952be6545..93867ad7f342 100644
--- a/drivers/acpi/acpica/utnonansi.c
+++ b/drivers/acpi/acpica/utnonansi.c
@@ -168,7 +168,16 @@ void acpi_ut_safe_strncpy(char *dest, char *source, acpi_size dest_size)
{
/* Always terminat... |
fb1a5dfe86d3af1e1c3ce168cf0d8d43897e0f77 | Analyze and fix the following issue in the Linux kernel code: thermal: testing: zone: Flush work items during cleanup | Problem Details:
To prevent freed module code from being executed during the thermal
testing module unload, make it add a dedicated workqueue for thermal
testing work items and flush it in thermal_testing_exit().
Fixes: f6a034f2df42 ("thermal: Introduce a debugfs-based testing facility")
Link: https://sashiko.dev/#/pa... | ```diff
diff --git a/drivers/thermal/testing/command.c b/drivers/thermal/testing/command.c
index fbf7ab9729b5..90e06c593327 100644
--- a/drivers/thermal/testing/command.c
+++ b/drivers/thermal/testing/command.c
@@ -86,7 +86,10 @@
#include "thermal_testing.h"
-struct dentry *d_testing;
+struct workqueue_struct *tt_... |
6d5bb4b54288798d23a8119e4666a1e9dccf3c41 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: thermal: amlogic: Correct 'reg' in the example | Problem Details:
The example DTS is tested in a wrapped node with address/size-cells=1,
thus reg had incorrect entry leading to dt_binding_check fails:
thermal/amlogic,thermal.example.dtb: temperature-sensor@20000 (amlogic,t7-thermal): reg: [[0, 131072], [0, 80]] is too long
Fixes: b1c8ccdbd4e9 ("dt-bindings: therm... | ```diff
diff --git a/Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml b/Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml
index d8f7f3eb7ae2..8cfa44dcda58 100644
--- a/Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/amlogic,therma... |
41f1be36957c29c35a1e0703673cf1ae8f4db195 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: thermal: amlogic: Fix missing header in the example | Problem Details:
Usage of defines from headers requires including relevant header,
otherwise dt_binding_check fails:
Lexical error: Documentation/devicetree/bindings/thermal/amlogic,thermal.example.dts:59.27-34 Unexpected 'GIC_SPI'
Lexical error: Documentation/devicetree/bindings/thermal/amlogic,thermal.example.dt... | ```diff
diff --git a/Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml b/Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml
index e28612510d67..d8f7f3eb7ae2 100644
--- a/Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/amlogic,therma... |
a67963e9cbdd1ab44e64af0fefef3027c3fad74e | Analyze and fix the following issue in the Linux kernel code: of: Fix RST inline emphasis warnings in of_map_id() kernel-doc | Problem Details:
The @filter_np parameter descriptions in of_map_id() and of_map_msi_id()
contained the text '*filter_np' in prose. Docutils interprets a leading
'*' as the start of RST emphasis (italic), but finds no closing '*',
triggering:
Documentation/devicetree/kernel-api:11: ./drivers/of/base.c:2134:
WARNIN... | ```diff
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 7cb0d7e88247..6e7a42dedad3 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2160,7 +2160,7 @@ static bool of_check_bad_map(const __be32 *map, int len)
* @map_mask_name: optional property name of the mask to use.
* @filter_np: pointer to an o... |
f36cb64bd39deecde690efadf4a5d6f8155fcb93 | Analyze and fix the following issue in the Linux kernel code: of: property: Fix of_fwnode_get_reference_args() with negative index | Problem Details:
fwnode_property_get_reference_args() should return -ENOENT when an out
of bound index is passed. An issue arised with the OF backend because
the OF API use signed indexes while the fwnode API use unsigned ones.
When an index value greater the INT_MAX was passed to the OF backend
it got casted to a nega... | ```diff
diff --git a/drivers/of/property.c b/drivers/of/property.c
index b276d1de3222..72cf12907de0 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1172,6 +1172,14 @@ of_fwnode_get_reference_args(const struct fwnode_handle *fwnode,
unsigned int i;
int ret;
+ /*
+ * This function should return ... |
a1c8bdbbd72564cebb0d02948c1ed57b80b2e773 | Analyze and fix the following issue in the Linux kernel code: block: handle REQ_OP_ZONE_APPEND in __bio_integrity_action | Problem Details:
Otherwise zone append commands will miss their integrity data. While
this works "fine" for auto-PI, it break file system PI and non-PI
metadata.
With this XFS on ZNS namespace with non-PI metadata and 512 byte sectors
with PI work, while PI 4k sector formats with PI work only when Caleb's
"block: fix... | ```diff
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index a53b38cf8a1a..b23e2434d80c 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -38,6 +38,7 @@ unsigned int __bio_integrity_action(struct bio *bio)
}
return BI_ACT_BUFFER | BI_ACT_CHECK;
case REQ_OP_WRITE:
+ case REQ_OP_ZONE_A... |
e7c1627afda2484baf65449be15873c2550f917a | Analyze and fix the following issue in the Linux kernel code: block: fix GFP_ flags confusion in bio_integrity_alloc_buf | Problem Details:
bio_integrity_alloc_buf usage of GFP_ flags is messed up. For one it
mixes GFP_NOFS and GFP_NOIO for neighbouring allocations, but it also
makes the allocations fail more often than needed. That code was copied
from bio_alloc_bioset which needs to do that so that it can punt to the
rescuer workqueue,... | ```diff
diff --git a/block/bio-integrity-auto.c b/block/bio-integrity-auto.c
index 353eed632fcc..b1c733ecfd2e 100644
--- a/block/bio-integrity-auto.c
+++ b/block/bio-integrity-auto.c
@@ -94,7 +94,7 @@ void bio_integrity_prep(struct bio *bio, unsigned int action)
bio_integrity_init(bio, &bid->bip, &bid->bvec, 1);
bi... |
4cfd7c1cff8f4c863b99d420cdbe0563802a9e80 | Analyze and fix the following issue in the Linux kernel code: blk-cgroup: don't nest queue_lock under blkcg->lock in blkcg_destroy_blkgs() | Problem Details:
The correct lock order is q->queue_lock before blkcg->lock, and in order
to prevent deadlock from blkcg_destroy_blkgs(), trylock is used for
q->queue_lock while blkcg->lock is already held, this is hacky.
Refactor blkcg_destroy_blkgs() to hold blkcg->lock only long enough to
get the first blkg and the... | ```diff
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index e1bde48852ae..d2a1f5903f24 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1239,6 +1239,21 @@ struct list_head *blkcg_get_cgwb_list(struct cgroup_subsys_state *css)
* This finally frees the blkcg.
*/
+static struct blkcg_gq *blkcg_... |
56cc24f59c145ce6938959f792df04b8a4f5a4d8 | Analyze and fix the following issue in the Linux kernel code: blk-cgroup: don't nest queue_lock under rcu in blkcg_print_blkgs() | Problem Details:
With previous modification to delay freeing policy data after an RCU grace
period, prfill() can run under RCU instead of taking queue_lock. However,
policy teardown can still clear blkg->pd[plid] after blkcg_print_blkgs()
observes the policy enabled bit.
Load policy data once with READ_ONCE() and skip... | ```diff
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 0d3e32d246a2..e82ff03bda02 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -1163,16 +1163,18 @@ static u64 bfqg_prfill_stat_recursive(struct seq_file *sf,
struct cgroup_subsys_state *pos_css;
u64 sum = 0;
- lockdep_assert_held(&blkg->q... |
a7ea04d1ad39d60da397de75b503062ad5fa562b | Analyze and fix the following issue in the Linux kernel code: ASoC: soc-core: Don't fail if device_link could not be created | Problem Details:
If device_link_add() fails in snd_soc_bind_card() just skip that
driver pair and carry on.
This means that ASoC must now keep track of which components it was
able to device_link to the card->dev. The new card_device_link member
of struct snd_soc_component is non-NULL if a device_link exists.
The int... | ```diff
diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index 11bc9527653f..aa423865dbe7 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -10,6 +10,8 @@
#include <sound/soc.h>
+struct device_link;
+
/*
* Component probe and remove ordering levels for c... |
2ee8dbd880b14fb0b5115bf2353c7900aa33b95b | Analyze and fix the following issue in the Linux kernel code: drm/i915/cdclk: Fix up CDCLK_FREQ_DECIMAL without a full PLL re-enable | Problem Details:
The GOP (and even Bspec on some platforms) is a bit inconsistent
on what the CDCLK_FREQ_DECIMAL divider should be. Currently any
mismatch there causes a full CDCLK PLL disable+re-enable, which
we really don't want to do if any displays are currently active.
Let's instead just reprogram CDCLK_FREQ_DECIM... | ```diff
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 189ae2d3cfc9..7bc9b956554b 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -1256,9 +1256,22 @@ static void skl_sanitize_cdclk(struct intel_displa... |
bb365a506b1e6fb050c0fceaad354fe395385ef0 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Unconditionally recompute CR8 intercept on PPR update | Problem Details:
The TPR_THRESHOLD field in the VMCS is used by VMX to induce VM exits
when the guest's virtual TPR falls under the specified threshold,
allowing KVM to inject previously masked interrupts.
KVM handles these VM exits in handle_tpr_below_threshold().
Commit eb90f3417a0c ("KVM: vmx: speed up TPR below th... | ```diff
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index e733ca6b9792..6f30bbdddb5a 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -980,6 +980,8 @@ static void apic_update_ppr(struct kvm_lapic *apic)
if (__apic_update_ppr(apic, &ppr) &&
apic_has_interrupt_for_ppr(apic, ppr) != -1)... |
7ef78d71ca713d8c00f7c34ddcf276c808143f77 | Analyze and fix the following issue in the Linux kernel code: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode | Problem Details:
When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in
guest mode so that a future change can have update CR8 intercepts during
vCPU creation, without running afoul of get_vmcs12()'s lockdep assertion.
------------[ cut here ]------------
debug_locks && !(lock_is_held(&(&vcpu->mute... | ```diff
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index a1a5edb39a7e..125994ed3db5 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -6872,11 +6872,10 @@ int vmx_handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)
void vmx_update_cr8_intercept(struct kvm_vcpu *vcpu, int ... |
cc3d0e1afd1077796df72da85e0da5266fd532f2 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: WARN (once) if RTC pending EOI tracking goes off the rails | Problem Details:
WARN once if KVM's tracking for pending EOIs for Real-Time Clock IRQs goes
off the rails, as there's no reason to bug the host or risk a DoS due to
spamming dmesg with endless WARNs. Absolute worst case scenario, guest
time will go awry.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed... | ```diff
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index 88bd226f3b73..757667fb2bfa 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -84,7 +84,7 @@ static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic);
static void rtc_status_pending_eoi_check_valid(struct kvm_ioapi... |
ea3c9959213641cbcf53add220d3213f16042419 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: WARN and fail kvm_set_irq() if a PIC or I/O APIC vector is invalid | Problem Details:
WARN and return an error up the stack if the PIC or I/O APIC encounters an
invalid vector when injecting an IRQ, as there is no danger to the host and
thus no justification for potentially panicking the kernel. Don't bug the
VM either, as the risk of corrupting the guest is minuscule, and the guest
mi... | ```diff
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 59e28c45d7dc..6a942ac622d5 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -194,7 +194,8 @@ int kvm_pic_set_irq(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm,
int irq = e->irqchip.pin;
int ret, irq_level;
- BUG_ON(irq... |
ac604b56115d9936a0876da46033b110cfab7f58 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Bug the VM, not the kernel, if the ISR count {under,over}flows | Problem Details:
Bug the VM, not the host kernel, if KVM's ISR count {under,over}flows when
tracking in-flight ISRs. There is zero danger to the host if KVM messes up
its IRQ tracking.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Message-ID: <20260618185350.20208... | ```diff
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 9d2df8623f6d..e733ca6b9792 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -767,7 +767,7 @@ static inline void apic_set_isr(int vec, struct kvm_lapic *apic)
kvm_x86_call(hwapic_isr_update)(apic->vcpu, vec);
else {
++apic->isr... |
8e5d793fc7173587cfdc075d2bb4a8d016fa050f | Analyze and fix the following issue in the Linux kernel code: KVM: x86/mmu: Bug the VM, not the host kernel, if KVM write-protects upper SPTEs | Problem Details:
Instead of bugging the host kernel, WARN and terminate the VM if KVM
attempts to write-protect at a level that cannot use leaf SPTEs.
There is no reason to bring down the entire host; even termininating
the VM is likely overkill, but in theory a missed write could corrupt
guest memory, so play it safe.... | ```diff
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 5b3041138301..c1cbae65d239 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -1410,9 +1410,10 @@ static bool wrprot_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root,
u64 new_spte;
bool spte_set = false;
... |
f1edbed787ba67988ed34e0132ca128b052b6ce8 | Analyze and fix the following issue in the Linux kernel code: KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned() | Problem Details:
Drop a BUG_ON() that has been reachable since it was first added, way back
in 2009, and instead use get_unaligned() to perform potentially-unaligned
accesses.
For a given store, KVM x86's emulator tracks the entire value in the
destination operand, x86_emulate_ctxt.dst. If the destination is memory,
... | ```diff
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 0e8b8a2c5b79..93ad2ebc963f 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <linux/seqlock.h>
#include <linux/irqbypass.h>
+#include <linux/unaligned.h>
#include <trace/events/kvm.h>
#inc... |
435990e25bf1f4af3e6df12a6fbfd1f7ba4a97d4 | Analyze and fix the following issue in the Linux kernel code: ALSA: seq: Fix uninitialised heap leak in snd_seq_event_dup() | Problem Details:
snd_seq_event_dup() copies an incoming event into a pool cell and, in
the UMP-enabled build, clears the trailing cell->ump.raw.extra word that
the memcpy() did not cover. The guard deciding whether to clear it
compares the copied size against sizeof(cell->event):
memcpy(&cell->ump, event, size);
if... | ```diff
diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index ca9f6db0022c..209b08c2a940 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -364,7 +364,7 @@ int snd_seq_event_dup(struct snd_seq_pool *pool, struct snd_seq_event *event,
size = snd_seq_event_packet_size(... |
babe08404e1993697a523e60bc0f9d096ffe1ef8 | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Return failure in case of failure in kvm_s390_set_cmma_bits() | Problem Details:
If the allocation of the bits array failed, kvm_s390_set_cmma_bits()
would return 0 instead of an error code.
Rework the function to use the __free() macros and thus simplify the
code flow; when the above mentioned allocation fails, simply return
-ENOMEM.
Fixes: e38c884df921 ("KVM: s390: Switch to ne... | ```diff
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 9ad6bd4edbce..3b26c909ad0f 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2313,8 +2313,8 @@ static int kvm_s390_get_cmma_bits(struct kvm *kvm,
static int kvm_s390_set_cmma_bits(struct kvm *kvm,
const struct ... |
125a3d3fac51571b8ede0d0599618c6ecd975ea8 | Analyze and fix the following issue in the Linux kernel code: KVM: s390: selftests: Fix cmma selftest | Problem Details:
The existing cmma selftest depended on the host allocating page tables
for all present memslots. Since the gmap rewrite, memory that is not
accessed by the guest might not have page tables allocated yet.
This caused the test to fail due to a mismatch in the assertion.
Fix by having the guest access a... | ```diff
diff --git a/tools/testing/selftests/kvm/s390/cmma_test.c b/tools/testing/selftests/kvm/s390/cmma_test.c
index e39a724fe860..15d81b2ed7ad 100644
--- a/tools/testing/selftests/kvm/s390/cmma_test.c
+++ b/tools/testing/selftests/kvm/s390/cmma_test.c
@@ -34,16 +34,22 @@ static char cmma_value_buf[MAIN_PAGE_COUNT + ... |
6cfd47f91f6aa3bcf9fe15388be52feb4b180440 | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix cmma dirty tracking | Problem Details:
It is possible that some guest memory areas have not been touched yet
when starting migration mode, and thus have no ptes allocated. Only
existing and allocated ptes should count toward the total of dirty cmma
entries.
When starting migration mode, enable the migration_mode flag
immediately, so that a... | ```diff
diff --git a/arch/s390/kvm/dat.c b/arch/s390/kvm/dat.c
index cffac7782c4b..0ad4ebc80eba 100644
--- a/arch/s390/kvm/dat.c
+++ b/arch/s390/kvm/dat.c
@@ -1253,6 +1253,9 @@ int dat_get_cmma(union asce asce, gfn_t *start, unsigned int *count, u8 *values,
};
_dat_walk_gfn_range(*start, asce_end(asce), asce, &op... |
9b0bf9b93cbff50764713b62d0f38d5238eea8c8 | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix locking in kvm_s390_set_mem_control() | Problem Details:
Add the missing locking around dat_reset_cmma().
Fixes: e38c884df921 ("KVM: s390: Switch to new gmap")
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260623153331.233784-7-imbrenda@linux.ibm.com> | ```diff
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 8a3d55410f06..221b2fb199d4 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -990,9 +990,11 @@ static int kvm_s390_set_mem_control(struct kvm *kvm, struct kvm_device_attr *att
if (!kvm->arch.use_cmma)
break;
+ ... |
2bd74dce0814acc382cfd6903ec902fdcd7b0fed | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix handle_{sske,pfmf} under memory pressure | Problem Details:
Under heavy memory pressure, handle_sske() and handle_pfmf() might
cause an endless loop if the mmu cache runs empty, the atomic
allocations fail, and the top-up function also fails. While quite
unlikely, that scenario is not impossible.
Fix the issue by not ignoring the return value of
kvm_s390_mmu_c... | ```diff
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 447ec7ed423d..9bc6fd02ff77 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -366,7 +366,9 @@ static int handle_sske(struct kvm_vcpu *vcpu)
if (rc > 1)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
if (rc == -ENOM... |
6e976afdfeafeb48f002b977823f67c6a3dd70a0 | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix code typo in gmap_protect_asce_top_level() | Problem Details:
The correct length to pass to kvm_s390_get_guest_pages() is asce.tl + 1,
not asce.dt + 1. It was a typo, which, due to fortuitous circumstances,
did not cause bugs. It should nonetheless be fixed.
Fixes: e5f98a6899bd ("KVM: s390: Add some helper functions needed for vSIE")
Signed-off-by: Claudio Imbre... | ```diff
diff --git a/arch/s390/kvm/gmap.c b/arch/s390/kvm/gmap.c
index 3192f610f696..e6e786811db8 100644
--- a/arch/s390/kvm/gmap.c
+++ b/arch/s390/kvm/gmap.c
@@ -1262,7 +1262,7 @@ static int gmap_protect_asce_top_level(struct kvm_s390_mmu_cache *mc, struct gma
/* Pairs with the smp_wmb() in kvm_mmu_invalidate_end().... |
e6c9b322c8cb3c08270f05e2faabd7c0cc82f809 | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Do not set special large pages dirty | Problem Details:
Special pages / folios should not be set dirty. This also applies to
large pages.
Add a missing check in gmap_clear_young_crste() to prevent setting the
large page dirty if it is a special page.
Fixes: a2c17f9270cc ("KVM: s390: New gmap code")
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
... | ```diff
diff --git a/arch/s390/kvm/gmap.c b/arch/s390/kvm/gmap.c
index 52d55ddea8d4..3192f610f696 100644
--- a/arch/s390/kvm/gmap.c
+++ b/arch/s390/kvm/gmap.c
@@ -327,7 +327,7 @@ static long gmap_clear_young_crste(union crste *crstep, gfn_t gfn, gfn_t end, st
new.h.i = 1;
new.s.fc1.y = 0;
new.s.fc1.prefix_noti... |
7a386efcb2bf986e0c9011e92a78aed0870b08cf | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix dat_peek_cmma() overflow | Problem Details:
If userspace passes a start address that is out of bounds,
_dat_walk_gfn_range() will fail with -EFAULT, but state.end will not be
touched and will stay 0. This will cause *count to underflow and report
a very high number, and the function will end up erroneously reporting
success.
Fix by only setting... | ```diff
diff --git a/arch/s390/kvm/dat.c b/arch/s390/kvm/dat.c
index 4a41c0247ffa..cffac7782c4b 100644
--- a/arch/s390/kvm/dat.c
+++ b/arch/s390/kvm/dat.c
@@ -1209,7 +1209,7 @@ int dat_peek_cmma(gfn_t start, union asce asce, unsigned int *count, u8 *values)
int rc;
rc = _dat_walk_gfn_range(start, start + *count, ... |
d4bb00704a66024502261fa7a523c07420249fea | Analyze and fix the following issue in the Linux kernel code: s390/mm: Fix handling of _PAGE_UNUSED pte bit | Problem Details:
The _PAGE_UNUSED softbit should not really be lying around. Its sole
purpose is to signal to try_to_unmap_one() and try_to_migrate_one()
that the page can be discarded instead of being moved / swapped.
KVM has no way to know why a page is being unmapped, so it sets the bit
on userspace ptes correspond... | ```diff
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 2c6cee8241e0..4740c75649eb 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -980,6 +980,8 @@ static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
static inline void set_pte(pte_t *ptep, pte... |
2d7d4366d0a6f313b454a533ea0e6a00755df8cf | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix typo in UCONTROL documentation | Problem Details:
Small typo noticed while writing the USER_OPEREXEC selftest.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260507200836.3500368-4-farman@linux.ibm.com>
Signed-off-by: Clau... | ```diff
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 52bbbb553ce1..f0eba90602f0 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -6827,7 +6827,7 @@ s390 specific.
} s390_ucontrol;
s390 specific. A page fault has occurred for a user controlle... |
02d61d3370ef34ca2a15190a7719d0761ed3ed34 | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix S390_USER_OPEREXEC enablement without STFLE 74 | Problem Details:
The KVM_CAP_S390_USER_OPEREXEC capability allows operation exceptions
to be forwarded to userspace. But the actual enablement at the hardware
level occurs in kvm_arch_vcpu_postcreate(), and only if STFLE.74 or
user_instr0 are enabled. The latter is associated with a separate
capability (KVM_CAP_S390_US... | ```diff
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index ffb20a64d328..8a3d55410f06 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -3542,7 +3542,8 @@ void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
vcpu->arch.gmap = vcpu->kvm->arch.gmap;
sca_add_vcpu(vcpu);
}
... |
2f6701a5ce6257ae7a64ddc6d89d0a08d2a034f8 | Analyze and fix the following issue in the Linux kernel code: apparmor: advertise the tcp fast open fix is applied | Problem Details:
The fix for tcp-fast-open ensures that the connect permission is being
mediated correctly but it didn't add an artifact to the feature set to
advertise the fix is available. Add an artifact so that the test suite
can identify if the fix has not been properly applied or a new
unexpected regression has o... | ```diff
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
index df9cb7c00cac..cf590dd08540 100644
--- a/security/apparmor/net.c
+++ b/security/apparmor/net.c
@@ -22,12 +22,14 @@
struct aa_sfs_entry aa_sfs_entry_network[] = {
AA_SFS_FILE_STRING("af_mask", AA_SFS_AF_MASK),
+ AA_SFS_FILE_BOOLEAN("tcp-fas... |
d87363b0edfc7504ff2b144fe4cdd8154f90f42e | Analyze and fix the following issue in the Linux kernel code: eth: fbnic: fix ordering of heartbeat vs ownership | Problem Details:
When requesting ownership of the NIC (MAC/PHY control), we set up
the heartbeat to look stale:
/* Initialize heartbeat, set last response to 1 second in the past
* so that we will trigger a timeout if the firmware doesn't respond
*/
fbd->last_heartbeat_response = req_time - HZ;
fbd->last_h... | ```diff
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_fw.c b/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
index 0c6812fcf185..283d25fae79e 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
@@ -526,15 +526,10 @@ int fbnic_fw_xmit_ownership_msg(struct fbnic_dev *f... |
17dc3b245de45b1f2012e3a48ec51889f544e67b | Analyze and fix the following issue in the Linux kernel code: ipv6: fix missing notification for ignore_routes_with_linkdown | Problem Details:
When changing the ignore_routes_with_linkdown sysctl for a specific
interface, the RTM_NEWNETCONF netlink notification was not being emitted
to userspace. Fix this by emitting the notification when needed.
In addition, fix bogus return value for successful "all" and specific
interface write operation ... | ```diff
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 82b6f603faa0..cbe681de3818 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -955,11 +955,7 @@ static int addrconf_fixup_linkdown(const struct ctl_table *table, int *p, int ne
NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN,
N... |
6a1b50e585f033f3e201f42a18b37f070095fb80 | Analyze and fix the following issue in the Linux kernel code: ipv6: fix state corruption during proxy_ndp sysctl restart | Problem Details:
When handling proxy_ndp, if rtnl_net_trylock() fails, the operation is
retried but as the value was already modified by the initial
proc_dointvec() call, the restarted syscall will read the newly modified
value as the 'old' state.
Fix this by taking the RTNL lock before parsing the input value if the
... | ```diff
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 5d96cbf76134..82b6f603faa0 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -6482,20 +6482,19 @@ static int addrconf_sysctl_disable(const struct ctl_table *ctl, int write,
static int addrconf_sysctl_proxy_ndp(const struct ctl_table *ctl,... |
3e0e51c0ee1d08cc9d48dc17f3248d5b31cf8066 | Analyze and fix the following issue in the Linux kernel code: ipv6: fix error handling in disable_policy sysctl | Problem Details:
When writing to the disable_policy sysctl, if proc_dointvec() fails to
parse the input, it returns a negative error code. The current
implementation is resetting the position argument even if an error
occurred during proc_dointvec() and not only during sysctl restart.
Fix this by checking the return v... | ```diff
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index d23a89b07eed..5d96cbf76134 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -6769,6 +6769,8 @@ static int addrconf_sysctl_disable_policy(const struct ctl_table *ctl, int write
lctl = *ctl;
lctl.data = &val;
ret = proc_dointvec(&lctl... |
058b9b19f9639fe1e1225a17c540f61b65bee6ad | Analyze and fix the following issue in the Linux kernel code: ipv6: fix error handling in forwarding sysctl | Problem Details:
When writing to the forwarding sysctl, if proc_dointvec() fails to parse
the input, it returns a negative error code. The current implementation
is overwriting that error for write operations.
This results in a silent failure, it returns a successful write although
the configuration was not modified a... | ```diff
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 70058d971205..d23a89b07eed 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -913,7 +913,7 @@ static int addrconf_fixup_forwarding(const struct ctl_table *table, int *p, int
if (newf)
rt6_purge_dflt_routers(net);
- return 1;
+ retur... |
cf4f2b14401f29ccac56393ca9e4b42a2505f540 | Analyze and fix the following issue in the Linux kernel code: ipv6: fix error handling in ignore_routes_with_linkdown sysctl | Problem Details:
When writing to the ignore_routes_with_linkdown sysctl, if
proc_dointvec() fails to parse the input, it returns a negative error
code. The current implementation is overwriting that error for write
operations.
This results in a silent failure, it returns a successful write although
the configuration w... | ```diff
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c901b444a995..70058d971205 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -6671,6 +6671,8 @@ int addrconf_sysctl_ignore_routes_with_linkdown(const struct ctl_table *ctl,
lctl.data = &val;
ret = proc_dointvec(&lctl, write, buffer, ... |
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