Description
In the Linux kernel, the following vulnerability has been resolved:
perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
syzkaller reportes a KASAN issue with stack-out-of-bounds.
The call trace is as follows:
dump_stack+0x9c/0xd3
print_address_description.constprop.0+0x19/0x170
__kasan_report.cold+0x6c/0x84
kasan_report+0x3a/0x50
__perf_event_header__init_id+0x34/0x290
perf_event_header__init_id+0x48/0x60
perf_output_begin+0x4a4/0x560
perf_event_bpf_output+0x161/0x1e0
perf_iterate_sb_cpu+0x29e/0x340
perf_iterate_sb+0x4c/0xc0
perf_event_bpf_event+0x194/0x2c0
__bpf_prog_put.constprop.0+0x55/0xf0
__cls_bpf_delete_prog+0xea/0x120 [cls_bpf]
cls_bpf_delete_prog_work+0x1c/0x30 [cls_bpf]
process_one_work+0x3c2/0x730
worker_thread+0x93/0x650
kthread+0x1b8/0x210
ret_from_fork+0x1f/0x30
commit 267fb27352b6 ("perf: Reduce stack usage of perf_output_begin()")
use on-stack struct perf_sample_data of the caller function.
However, perf_event_bpf_output uses incorrect parameter to convert
small-sized data (struct perf_bpf_event) into large-sized data
(struct perf_sample_data), which causes memory overwriting occurs in
__perf_event_header__init_id.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.10 | 5.10.177 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.1.25-1 | — |
| Debian 13 | linux | 6.1.25-1 | — |
| Debian 12 | linux | 6.1.25-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1022.24 | — |
| Ubuntu 24.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 22.04 LTS | linux | 5.15.0-79.86 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1042.47 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1045.52 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1045.52.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1039.47 | — |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1039.44 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1025.30 | — |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1035.38 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1037.42 | — |
| Ubuntu 22.04 LTS | linux-lowlatency | 5.15.0-79.88 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1030.30 | — |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1016.16 | — |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | 5.15.0-1002.2 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1040.46 | — |
| Ubuntu 22.04 LTS | linux-riscv +31 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | 5.15.0-1025.29 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1041.46~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1045.52~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1039.47~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 | 5.15.0-79.86~20.04.2 | — |
| Ubuntu 20.04 LTS | linux-ibm-5.15 | 5.15.0-1036.39~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1037.42~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-lowlatency-hwe-5.15 | 5.15.0-79.88~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1016.16~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1040.46~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1038.42~20.04.2 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1036.38 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1043.48 | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.2.0-362.8.1.el9_3 | RHSA-2023:6583 |
| RHEL 9 | rv +64 | 5.14.0-362.8.1.el9_3 | RHSA-2023:6583 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.97.1 | SUSE-SU-2025:01966-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.121.1 | SUSE-SU-2025:01918-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.121.1 | SUSE-SU-2025:01918-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_27 | 1-150500.11.7.1 | SUSE-SU-2025:02173-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_41 | 1-150400.9.3.1 | SUSE-SU-2025:02262-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.23-36.46 | 1.0-0.amzn2023 | ALAS2023-2025-1054 |
| Amazon Linux 2023 | perf +12 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 |
Advisories 6
- RHSA-2023:6583 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- ALAS2023-2025-1054 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 8, 2026
- SUSE-SU-2025:02262-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01918-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02173-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01966-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/stable/c/ddcf8320003638a06eb1e46412e045d0c5701575
- https://git.kernel.org/stable/c/ac5f88642cb211152041f84a985309e9af4baf59
- https://git.kernel.org/stable/c/ff8137727a2af4ad5f6e6c8b9f7ec5e8db9da86c
- https://git.kernel.org/stable/c/3a776fddb4e5598c8bfcd4ad094fba34f9856fc9
- https://git.kernel.org/stable/c/eb81a2ed4f52be831c9fb879752d89645a312c13