CVE-2024-49918

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Source
https://cve.org/CVERecord?id=CVE-2024-49918
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49918.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-49918
Downstream
Related
Published
2024-10-21T18:01:45.036Z
Modified
2026-03-20T12:39:27.608535Z
Summary
drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Add null check for headpipe in dcn32acquireidlepipeforheadpipein_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/dcn32resource.c:2690 dcn32acquireidlepipeforheadpipeinlayer() error: we previously assumed 'headpipe' could be null (see line 2681)

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49918.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c
Fixed
4f47292f488fa7041284dca1f1244116c18721f1
Fixed
96d4c2ee18d732a248d053aae8c4a27cb1d68d1c
Fixed
ac2140449184a26eac99585b7f69814bd3ba8f2d

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49918.json"