Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix potential null-deref in dm_resume
[Why]
Fixing smatch error:
dm_resume() error: we previously assumed 'aconnector->dc_link' could be null
[How]
Check if dc_link null at the beginning of the loop,
so further checks can be dropped.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 4.19.239 – < 4.19.276, 5.4.190 – < 5.4.235, 5.10.112 – < 5.10.173, 5.15.35 – < 5.15.99, 5.17.4 – < 5.18, 5.18 | 4.19.276 |
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 | 6.1.20-1 | — |
| Debian 13 | linux | 6.1.20-1 | — |
| Debian 12 | linux | 6.1.20-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1019.21 | — |
| Ubuntu 24.04 LTS | linux-intel +9 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-75.82 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1038.43 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1040.47 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1041.48.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1036.44 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1036.41 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1022.27 | — |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1032.35 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1033.38 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1035.40 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1027.27 | — |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1015.15 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1037.43 | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-152.169 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1104.112 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1038.43~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1110.116 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1040.47~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1065.71 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1107.116 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1036.44~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-75.82~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1051.56 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1033.38~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1017.18 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1093.99 | — |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1015.15~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1103.112 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1037.43~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1088.99 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1035.39~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1024.28 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 5 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 | 5.15.0-1033.35 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1040.45 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1104.112+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1110.116+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1079.88 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1107.116+fips1 | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux-aws-5.4 | 5.4.0-1104.112~18.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux-azure-5.4 | 5.4.0-1110.116~18.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux-gcp-5.4 | 5.4.0-1107.116~18.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux-hwe-5.4 | 5.4.0-152.169~18.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux-ibm-5.4 | 5.4.0-1051.56~18.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux-oracle-5.4 | 5.4.0-1103.112~18.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux-raspi-5.4 | 5.4.0-1088.99~18.04.1 | — |
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 |
| RHEL 8 | perf +26 | 4.18.0-513.5.1.el8_9 | RHSA-2023:7077 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.127.1 | SUSE-SU-2025:4320-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.127.1.150500.6.61.1 | SUSE-SU-2025:4320-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 | SUSE-SU-2025:4111-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.127.1.150500.6.61.1 | SUSE-SU-2025:4320-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.127.1 | SUSE-SU-2025:4320-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 | SUSE-SU-2025:4111-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.127.1.150500.6.61.1 | SUSE-SU-2025:4320-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.112.1 | SUSE-SU-2025:4149-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.127.1 | SUSE-SU-2025:4320-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 | SUSE-SU-2025:4111-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.136.1 | SUSE-SU-2025:4139-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 | SUSE-SU-2025:4111-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.136.1 | SUSE-SU-2025:4139-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.127.1 | SUSE-SU-2025:4320-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_32 | 1-150500.11.3.1 | SUSE-SU-2025:4320-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_46 | 1-150400.9.5.1 | SUSE-SU-2025:4111-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.127.1 | SUSE-SU-2025:4320-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.127.1.150500.6.61.1 | SUSE-SU-2025:4320-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 | SUSE-SU-2025:4111-1 |
| SUSE Manager Server LTS 4.3 | kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 | SUSE-SU-2025:4111-1 |
| SUSE Manager Server LTS 4.3 | kernel-syms +3 | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
| SUSE Manager Proxy LTS 4.3 | kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 | SUSE-SU-2025:4111-1 |
| SUSE Manager Proxy LTS 4.3 | kernel-syms +2 | 5.14.21-150400.24.184.1 | SUSE-SU-2025:4111-1 |
Advisories 7
- WID-SEC-2025-2229 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2023:7077 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:6583 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- SUSE-SU-2025:4139-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4149-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4111-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4320-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/stable/c/fd79b61af2782f8875c78f50cdb8630ec43e2990
- https://git.kernel.org/stable/c/d236103782de25736996a45bd36ac2a89bdc93c6
- https://git.kernel.org/stable/c/9f73793b81637c60ccc83cc508645310b8ab7d80
- https://git.kernel.org/stable/c/bb9a5562beb982aa5ebb73c521c49596ff8b8030
- https://git.kernel.org/stable/c/8e365f1bd672cc9320a936f6ae6f8087aa40e9bc
- https://git.kernel.org/stable/c/00b655fa96b4e941351cc4bf5ca755a65ae94a8e
- https://git.kernel.org/stable/c/7a7175a2cd84b7874bebbf8e59f134557a34161b