CVE-2024-49918 (GCVE-0-2024-49918)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:41
VLAI?
Title
drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer
Summary
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)
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 4f47292f488fa7041284dca1f1244116c18721f1 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 96d4c2ee18d732a248d053aae8c4a27cb1d68d1c (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < ac2140449184a26eac99585b7f69814bd3ba8f2d (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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