Description
In the Linux kernel, the following vulnerability has been resolved:
drm/stm: ltdc: fix late dereference check
In ltdc_crtc_set_crc_source(), struct drm_crtc was dereferenced in a
container_of() before the pointer check. This could cause a kernel panic.
Fix this smatch warning:
drivers/gpu/drm/stm/ltdc.c:1124 ltdc_crtc_set_crc_source() warn: variable dereferenced before check 'crtc' (see line 1119)
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.18 | 6.1.47 |
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 | 6.4.13-1 | — |
| Debian 13 | linux | 6.4.13-1 | — |
| Debian 12 | linux | 6.1.52-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-riscv +8 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| 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 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | kernel-64kb +6 | 6.4.0-150700.53.31.1 | SUSE-SU-2026:0447-1 |
| SLES 15 SP7 | kernel-azure +2 | 6.4.0-150700.20.27.1 | SUSE-SU-2026:0472-1 |
| SLES 15 SP7 | kernel-default-base | 6.4.0-150700.53.31.1.150700.17.21.1 | SUSE-SU-2026:0447-1 |
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.87.1 | SUSE-SU-2026:0471-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.87.1.150600.12.40.1 | SUSE-SU-2026:0471-1 |
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.136.1 | SUSE-SU-2026:0474-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.136.1.150500.6.67.1 | SUSE-SU-2026:0474-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | kernel-default-base | 6.4.0-150600.23.87.1.150600.12.40.1 | SUSE-SU-2026:0471-1 |
| SLES for SAP 15 SP6 | kernel-docs +4 | 6.4.0-150600.23.87.1 | SUSE-SU-2026:0471-1 |
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.136.1.150500.6.67.1 | SUSE-SU-2026:0474-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.136.1 | SUSE-SU-2026:0474-1 |
| SLE Micro 6.1 | kernel-default-base | 6.4.0-39.1.21.16 | SUSE-SU-2026:20498-1 |
| SLE Micro 6.1 | kernel-rt +1 | 6.4.0-40.1 | SUSE-SU-2026:20876-1 |
| SLE Micro 6.1 | kernel-source +2 | 6.4.0-39.1 | SUSE-SU-2026:20498-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-39.1.21.16 | SUSE-SU-2026:20477-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-40.1 | SUSE-SU-2026:20845-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-39.1 | SUSE-SU-2026:20477-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.136.1.150500.6.67.1 | SUSE-SU-2026:0474-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.121.1 | SUSE-SU-2026:0496-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.136.1 | SUSE-SU-2026:0474-1 |
| SLE Live Patching 15 SP7 | kernel-default | 6.4.0-150700.53.31.1 | SUSE-SU-2026:0447-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_9 | 1-150700.1.3.2 | SUSE-SU-2026:0587-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_9 | 1-150700.15.3.1 | SUSE-SU-2026:0447-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.87.1 | SUSE-SU-2026:0471-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_20 | 1-150600.13.3.1 | SUSE-SU-2026:0471-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.136.1 | SUSE-SU-2026:0474-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_35 | 1-150500.11.3.1 | SUSE-SU-2026:0474-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.136.1 | SUSE-SU-2026:0474-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.136.1.150500.6.67.1 | SUSE-SU-2026:0474-1 |
| SUSE Real Time Module 15 SP7 | kernel-rt | 6.4.0-150700.7.31.2 | SUSE-SU-2026:0587-1 |
| SUSE Real Time Module 15 SP7 | kernel-syms-rt +1 | 6.4.0-150700.7.31.1 | SUSE-SU-2026:0587-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +10 | 6.4.0-150600.23.87.1 | SUSE-SU-2026:0471-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.87.1.150600.12.40.1 | SUSE-SU-2026:0471-1 |
Advisories 11
- WID-SEC-2025-2394 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 9, 2026
- SUSE-SU-2026:20876-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 31, 2026
- SUSE-SU-2026:20845-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 28, 2026
- SUSE-SU-2026:20498-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20477-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0587-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0496-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0471-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0472-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0474-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0447-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026