CVE-2024-49918drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer This commit addresses a potential null pointer dereference issue in the `dcn32_acquire_idle_pipe_for_head_pipe_in_layer` function. The issue could occur when `head_pipe` is null. The fix adds a check to ensure `head_pipe` is not null before asserting it. If `head_pipe` is null, the function returns NULL to prevent a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn32/dcn32_resource.c:2690 dcn32_acquire_idle_pipe_for_head_pipe_in_layer() error: we previously assumed 'head_pipe' could be null (see line 2681)
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 21, 2026
Affected products
Linux Linux linux:linux (from the name) | 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 180280f3c4621d699d903773bb84bf7f0bc6a891; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 4f47292f488fa7041284dca1f1244116c18721f1; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 96d4c2ee18d732a248d053aae8c4a27cb1d68d1c; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before ac2140449184a26eac99585b7f69814bd3ba8f2d | CNA record |
linux linux_kernel linux:linux_kernel | before 6.10.14; from 6.11 before 6.11.3 | NVD |
References
- https://git.kernel.org/stable/c/180280f3c4621d699d903773bb84bf7f0bc6a891
- https://git.kernel.org/stable/c/4f47292f488fa7041284dca1f1244116c18721f1patch
- https://git.kernel.org/stable/c/96d4c2ee18d732a248d053aae8c4a27cb1d68d1cpatch
- https://git.kernel.org/stable/c/ac2140449184a26eac99585b7f69814bd3ba8f2dpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.