Description
In the Linux kernel, the following vulnerability has been resolved:
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
Unlike other strings in the ext4 superblock, we rely on tune2fs to
make sure s_mount_opts is NUL terminated. Harden
parse_apply_sb_mount_options() by treating s_mount_opts as a potential
__nonstring.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 2.6.36 | 5.4.301 |
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 | 6.17.6-1 | — |
| Debian 13 | linux | 6.12.57-1 | — |
| Debian 12 | linux | 6.1.158-1 | — |
| Debian 11 | linux | 5.10.247-1 | DLA-4404-1 |
| Debian 11 | linux-6.1 | 6.1.158-1~deb11u1 | DLA-4379-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 24.04 LTS | linux-bluefield | 6.8.0-1017.21 | — |
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu 25.10 | linux | 6.17.0-14.14 | USN-8029-1 |
| Ubuntu 25.10 | linux-aws +2 | 6.17.0-1007.7 | USN-8030-1, USN-8029-2 |
| Ubuntu 25.10 | linux-azure +1 | 6.17.0-1008.8 | USN-8029-3, USN-8029-1 |
| Ubuntu 25.10 | linux-azure-fde | No fix yet | — |
| Ubuntu 25.10 | linux-realtime | 6.17.0-1006.7 | USN-8029-1 |
| Ubuntu 25.10 | linux-riscv | 6.17.0-14.14.1 | — |
| Ubuntu 24.04 LTS | linux | 6.8.0-106.106 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1050.53 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-aws-6.17 +1 | 6.17.0-1007.7~24.04.1 | — |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1051.57 | USN-8125-1 |
| Ubuntu 24.04 LTS | linux-azure-fde | 6.8.0-1058.65 | — |
| Ubuntu 24.04 LTS | linux-azure-nvidia | 6.8.0-1039.42 | — |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1052.55 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-gcp-6.17 | 6.17.0-1008.8~24.04.1 | — |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1048.53 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1035.38 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1049.49 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-lowlatency | 6.8.0-106.106.1 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1049.52 | USN-8100-1 |
| Ubuntu 24.04 LTS | linux-nvidia-6.17 | 6.17.0-1008.8 | — |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1049.52.1 | USN-8100-1 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1020.20 | — |
| Ubuntu 24.04 LTS | linux-oem-6.17 | 6.17.0-1011.11 | USN-8048-1 |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1047.48 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1050.54 | USN-8095-5 |
| Ubuntu 24.04 LTS | linux-riscv +18 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-xilinx | 6.8.0-1028.29 | USN-8261-1 |
| Ubuntu 22.04 LTS | linux +49 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1050.53~22.04.1 | USN-8095-4 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1051.57~22.04.1 | USN-8126-1 |
| Ubuntu 22.04 LTS | linux-azure-fde-6.8 | 6.8.0-1058.65~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1052.55~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 +1 | 6.8.0-106.106~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1049.49~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.8 | 6.8.0-106.106.1~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1049.52~22.04.1 | USN-8100-1 |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1047.48~22.04.1 | USN-8095-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2040.41 | USN-8095-5 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1045.46 | USN-8095-3 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.14 | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.17 | 6.17.0-1006.7~24.04.1 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1045.46~22.04.1 | USN-8095-3 |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-aws-fips | 6.8.0-1050.53+fips1 | USN-8095-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-azure-fips | 6.8.0-1052.58+fips1 | USN-8165-1 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-106.106+fips1 | USN-8095-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-gcp-fips | 6.8.0-1052.55+fips1 | USN-8095-2 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +21 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux +12 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux +7 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux +3 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | kernel-64kb +5 | 6.4.0-150700.53.25.1 | SUSE-SU-2025:4393-1 |
| SLES 15 SP7 | kernel-azure +2 | 6.4.0-150700.20.21.1 | SUSE-SU-2025:4517-1 |
| SLES 15 SP7 | kernel-default-base | 6.4.0-150700.53.25.1.150700.17.17.1 | SUSE-SU-2025:4393-1 |
| SLES 15 SP7 | kernel-docs | 6.4.0-150700.53.25.2 | SUSE-SU-2025:4393-1 |
| SLES 15 SP6 | kernel-64kb +3 | 6.4.0-150600.23.81.3 | SUSE-SU-2025:4422-1 |
| SLES 15 SP6 | kernel-azure +2 | 6.4.0-150600.8.58.1 | SUSE-SU-2025:4505-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.81.3.150600.12.36.3 | SUSE-SU-2025:4422-1 |
| SLES 15 SP6 | kernel-docs +1 | 6.4.0-150600.23.81.1 | SUSE-SU-2025:4422-1 |
| SLES 15 SP6 | kernel-source | 6.4.0-150600.23.81.2 | SUSE-SU-2025:4422-1 |
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.290.1 | SUSE-SU-2026:0473-1, SUSE-SU-2026:0316-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | kernel-64kb +7 | 6.12.0-160000.8.1 | SUSE-SU-2026:20015-1 |
| SLES for SAP 16.0 | kernel-default-base | 6.12.0-160000.8.1.160000.2.5 | SUSE-SU-2026:20015-1 |
| SLES 16.0 | kernel-64kb +7 | 6.12.0-160000.8.1 | SUSE-SU-2026:20021-1, SUSE-SU-2026:20015-1 |
| SLES 16.0 | kernel-default-base | 6.12.0-160000.8.1.160000.2.5 | SUSE-SU-2026:20015-1 |
| SLE Micro 6.2 | kernel-default-base | 6.12.0-160000.8.1.160000.2.5 | SUSE-SU-2026:20012-1 |
| SLE Micro 6.2 | kernel-rt +5 | 6.12.0-160000.8.1 | SUSE-SU-2026:20562-1, SUSE-SU-2026:20012-1 |
| SLE Micro 6.1 | kernel-default-base | 6.4.0-38.1.21.15 | SUSE-SU-2026:20496-1 |
| SLE Micro 6.1 | kernel-rt +1 | 6.4.0-39.1 | SUSE-SU-2026:20059-1 |
| SLE Micro 6.1 | kernel-source +2 | 6.4.0-38.1 | SUSE-SU-2026:20496-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-38.1.21.15 | SUSE-SU-2026:20473-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-39.1 | SUSE-SU-2026:20039-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-38.1 | SUSE-SU-2026:20473-1 |
| SLE Live Patching 15 SP7 | kernel-default | 6.4.0-150700.53.25.1 | SUSE-SU-2025:4393-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_7 | 1-150700.1.3.1 | SUSE-SU-2025:4516-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_7 | 1-150700.15.3.1 | SUSE-SU-2025:4393-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.81.3 | SUSE-SU-2025:4422-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_18 | 1-150600.1.3.1 | SUSE-SU-2025:4521-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_18 | 1-150600.13.3.3 | SUSE-SU-2025:4422-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.290.1 | SUSE-SU-2026:0473-1, SUSE-SU-2026:0316-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_76 | 1-8.7.1 | SUSE-SU-2026:0316-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_77 | 1-8.3.1 | SUSE-SU-2026:0473-1 |
| SUSE Real Time Module 15 SP7 | kernel-rt +2 | 6.4.0-150700.7.25.1 | SUSE-SU-2025:4516-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.61.1 | SUSE-SU-2025:4521-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | kernel-default-base | 6.12.0-160000.8.1.160000.2.5 | openSUSE-SU-2025:20172-1 |
| openSUSE Leap 16.0 | kernel-rt +10 | 6.12.0-160000.8.1 | openSUSE-SU-2025:20172-1 |
| openSUSE Leap 15.6 | dtb-aarch64 +3 | 6.4.0-150600.23.81.1 | SUSE-SU-2025:4422-1 |
| openSUSE Leap 15.6 | kernel-64kb +5 | 6.4.0-150600.23.81.3 | SUSE-SU-2025:4422-1 |
| openSUSE Leap 15.6 | kernel-azure +2 | 6.4.0-150600.8.58.1 | SUSE-SU-2025:4505-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.81.3.150600.12.36.3 | SUSE-SU-2025:4422-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.61.1 | SUSE-SU-2025:4521-1 |
| openSUSE Leap 15.6 | kernel-source | 6.4.0-150600.23.81.2 | SUSE-SU-2025:4422-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.12.55-74.119 +1 | 1:1.0-0.amzn2023 | ALAS2023-2025-1316, ALAS2023-2025-1297 |
| Amazon Linux 2023 | perf +14 | 1:6.1.158-178.288.amzn2023 | ALAS2023-2025-1297 |
| Amazon Linux 2023 | perf6.12 +14 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | kernel | 6.6.117.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kernel-uek +6 | 5.4.17-2136.350.3.1.el8uek | ELSA-2025-28049 |
| Oracle Linux 7 | kernel-uek-tools | 5.4.17-2136.350.3.1.el7uek | ELSA-2025-28049 |
Advisories 38
- USN-8100-1 linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8165-1 linux-azure-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8095-1 linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-2 linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8126-1 linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-5 linux-raspi, linux-raspi-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8125-1 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-4 linux-aws-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8029-2 linux-aws, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8048-1 linux-oem-6.17 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8029-3 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8030-1 linux-gcp vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8029-1 linux, linux-raspi, linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-3 linux-realtime, linux-realtime-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- WID-SEC-2025-2595 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 24, 2026
- USN-8261-1 linux-xilinx vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- SUSE-SU-2026:20562-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jul 9, 2026
- openSUSE-SU-2025:20172-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20496-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20059-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20039-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20012-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20015-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20021-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0316-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4517-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20473-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4422-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4393-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0473-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4521-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4516-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- ALAS2023-2025-1297 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 8, 2026
- SUSE-SU-2025:4505-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2025-1316 Important: kernel6.12 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Dec 19, 2025
- DLA-4404-1 linux - security update Debian Security (DSA / DLA) · Dec 12, 2025
- ELSA-2025-28049 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 12, 2025
- DLA-4379-1 linux-6.1 - security update Debian Security (DSA / DLA) · Nov 25, 2025
References
- https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d
- https://git.kernel.org/stable/c/b2bac84fde28fb6a88817b8b761abda17a1d300b
- https://git.kernel.org/stable/c/e651294218d2684302ee5ed95ccf381646f3e5b4
- https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502
- https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934
- https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412
- https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8