Description
In the Linux kernel, the following vulnerability has been resolved:
net: fec: handle page_pool_dev_alloc_pages error
The fec_enet_update_cbd function calls page_pool_dev_alloc_pages but did
not handle the case when it returned NULL. There was a WARN_ON(!new_page)
but it would still proceed to use the NULL pointer and then crash.
This case does seem somewhat rare but when the system is under memory
pressure it can happen. One case where I can duplicate this with some
frequency is when writing over a smbd share to a SATA HDD attached to an
imx6q.
Setting /proc/sys/vm/min_free_kbytes to higher values also seems to solve
the problem for my test case. But it still seems wrong that the fec driver
ignores the memory allocation error and can crash.
This commit handles the allocation error by dropping the current packet.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 6.1 | 6.1.167 |
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 | 6.12.11-1 | — |
| Debian 13 | linux | 6.12.11-1 | — |
| Debian 12 | linux | 6.1.170-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux | 6.8.0-62.65 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1030.32 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1030.35 | USN-7596-1 |
| Ubuntu 24.04 LTS | linux-azure-nvidia | 6.8.0-1018.19 | USN-7596-2 |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1031.33 | USN-7595-5 |
| Ubuntu 24.04 LTS | linux-gcp-6.11 +1 | 6.11.0-1013.13~24.04.1 | USN-7448-1 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1026.30 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1013.15 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-hwe-6.11 | 6.11.0-24.24~24.04.1 | USN-7445-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1027.27 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-lowlatency | 6.8.0-62.65.1 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-lowlatency-hwe-6.11 | 6.11.0-1012.13~24.04.1 | USN-7445-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1029.32 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-nvidia-6.11 | 6.11.0-1007.7 | — |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1029.32.1 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1008.8 | — |
| Ubuntu 24.04 LTS | linux-oem-6.11 | 6.11.0-1020.20 | USN-7445-1 |
| Ubuntu 24.04 LTS | linux-oem-6.8 | 6.8.0-1029.29 | USN-7595-1 |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1027.28 | USN-7595-4 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1029.33 | USN-7595-4 |
| Ubuntu 24.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-xilinx | 6.8.0-1017.18 | — |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1030.32~22.04.1 | USN-7595-1 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1030.35~22.04.1 | USN-7596-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1031.33~22.04.1 | USN-7595-5 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 | 6.8.0-64.67~22.04.1 | USN-7653-1 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1027.27~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.8 | 6.8.0-62.65.1~22.04.1 | USN-7595-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1029.32~22.04.1 | USN-7595-1 |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1027.28~22.04.1 | USN-7595-4 |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv-6.8 | 6.8.0-62.65~22.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2024.25 | USN-7595-3 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1023.24 | USN-7595-2 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1023.24~22.04.1 | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-78.78+fips1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.38.1 | SUSE-SU-2025:0499-1 |
| SLES 15 SP6 | kernel-azure +2 | 6.4.0-150600.8.26.1 | SUSE-SU-2025:0428-1 |
| SLES 15 SP6 | kernel-coco +3 | 6.4.0-15061.15.coco15sp6.1 | SUSE-SU-2025:0564-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.38.1.150600.12.16.2 | SUSE-SU-2025:0499-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | kernel-default-base | 6.4.0-24.1.21.4 | SUSE-SU-2025:20248-1 |
| SLE Micro 6.1 | kernel-livepatch-MICRO-6-0-RT_Update_5 | 1-1.1 | SUSE-SU-2025:20249-1 |
| SLE Micro 6.1 | kernel-livepatch-MICRO-6-0_Update_5 | 1-1.2 | SUSE-SU-2025:20248-1 |
| SLE Micro 6.1 | kernel-rt +4 | 6.4.0-25.1 | SUSE-SU-2025:20249-1, SUSE-SU-2025:20248-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-24.1.21.4 | SUSE-SU-2025:20165-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0-RT_Update_5 | 1-1.1 | SUSE-SU-2025:20166-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_5 | 1-1.2 | SUSE-SU-2025:20165-1 |
| SLE Micro 6.0 | kernel-rt +4 | 6.4.0-25.1 | SUSE-SU-2025:20166-1, SUSE-SU-2025:20165-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.38.1 | SUSE-SU-2025:0499-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_8 | 1-150600.1.3.1 | SUSE-SU-2025:0557-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_8 | 1-150600.13.3.2 | SUSE-SU-2025:0499-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.26.1 | SUSE-SU-2025:0557-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +10 | 6.4.0-150600.23.38.1 | SUSE-SU-2025:0499-1 |
| openSUSE Leap 15.6 | kernel-azure +2 | 6.4.0-150600.8.26.1 | SUSE-SU-2025:0428-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.38.1.150600.12.16.2 | SUSE-SU-2025:0499-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.26.1 | SUSE-SU-2025:0557-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | kernel | 6.6.76.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | kernel-uek +34 | 6.12.0-101.33.4.3.el10uek | ELSA-2025-20530, ELSA-2025-20480 |
Advisories 26
- SSA-457936 SSA-457936: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.7 Siemens ProductCERT · Nov 10, 2026
- USN-7653-1 linux-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7595-1 linux, linux-aws, linux-aws-6.8, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oem-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7595-4 linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7595-3 linux-raspi-realtime vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7445-1 linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7448-1 linux-azure, linux-azure-6.11 vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7595-5 linux-gcp, linux-gcp-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7595-2 linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7596-2 linux-azure-nvidia vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7596-1 linux-azure, linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- ICSA-26-295-11 Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP CISA ICS & IT advisories · Oct 22, 2026
- SSA-019113 SSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6 Siemens ProductCERT · Oct 13, 2026
- SSA-082556 SSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2025-0232 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Sep 3, 2026
- ICSA-26-209-04 Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP CISA ICS & IT advisories · Jul 28, 2026
- SUSE-SU-2025:20165-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20166-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20248-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20249-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:0564-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0557-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0499-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0428-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2025-20530 Important: Unbreakable Enterprise kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 18, 2025
- ELSA-2025-20480 Important: Unbreakable Enterprise kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 17, 2025