Description
In the Linux kernel, the following vulnerability has been resolved:
jbd2: fix potential use-after-free in jbd2_fc_wait_bufs
In 'jbd2_fc_wait_bufs' use 'bh' after put buffer head reference count
which may lead to use-after-free.
So judge buffer if uptodate before put buffer head reference count.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.10 | 5.10.150 |
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 | 6.0.3-1 | — |
| Debian 13 | linux | 6.0.3-1 | — |
| Debian 12 | linux | 6.0.3-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1014.16 | — |
| Ubuntu 24.04 LTS | linux-intel +9 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-60.66 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1030.34 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1033.40 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1033.40.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1029.36 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1027.32 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1015.19 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1025.28 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1025.30 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1028.33 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1017.17 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1029.35 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1024.26 | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1030.34~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1033.40~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1029.36~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-60.66~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1025.30~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1029.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1029.33~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.109.1 | SUSE-SU-2025:3761-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.133.1 | SUSE-SU-2025:3716-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.133.1 | SUSE-SU-2025:3716-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_31 | 1-150500.11.3.1 | SUSE-SU-2025:03615-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_45 | 1-150400.9.3.1 | SUSE-SU-2025:03628-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SUSE Manager Server LTS 4.3 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SUSE Manager Server LTS 4.3 | kernel-syms +3 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SUSE Manager Proxy LTS 4.3 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SUSE Manager Proxy LTS 4.3 | kernel-syms +2 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
Advisories 5
- WID-SEC-2025-2053 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 9, 2026
- SUSE-SU-2025:03615-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:3761-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03628-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:3716-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/stable/c/1d4d16daec2a6689b6d3fbfc7d2078643adc6619
- https://git.kernel.org/stable/c/d11d2ded293976a1a0d9d9471827a44dc9e3c63f
- https://git.kernel.org/stable/c/2e6d9f381c1ed844531a577783fc352de7a44c8a
- https://git.kernel.org/stable/c/effd9b3c029ecdd853a11933dcf857f5a7ca8c3d
- https://git.kernel.org/stable/c/243d1a5d505d0b0460c9af0ad56ed4a56ef0bebd