drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.160, 6.10.14, 6.11.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
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)
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c · fixed in 180280f3c4621d699d903773bb84bf7f0bc6a891; From 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c · fixed in 4f47292f488fa7041284dca1f1244116c18721f1; From 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c · fixed in 96d4c2ee18d732a248d053aae8c4a27cb1d68d1c; From 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c · fixed in ac2140449184a26eac99585b7f69814bd3ba8f2d
- Linux Linux
4.15
- KernelLinux
From 4.15.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.10.14; From 6.11.0 · fixed in 6.11.3