CVE-2024-49912: drm/amd/display: Handle null 'stream_status' in 'planes_changed_for_existing_stream'
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Handle null 'stream_status' in 'planes_changed_for_existing_stream' This commit adds a null check for 'stream_status' in the function 'planes_changed_for_existing_stream'. Previously, the code assumed 'stream_status' could be null, but did not handle the case where it was actually null. This could lead to a null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c:3784 planes_changed_for_existing_stream() error: we previously assumed 'stream_status' could be null (see line 3774)
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.1.113 | |
| Linux Kernel | >=6.2<6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/0ffd9fb03bbc99ed1eb5dc989d5c7da2faac0659
- https://git.kernel.org/stable/c/4778982c73d6c9f3fdbdbc6b6c8aa18df98251af
- https://git.kernel.org/stable/c/8141f21b941710ecebe49220b69822cab3abd23d
- https://git.kernel.org/stable/c/c4b699b93496c423b0e5b584d4eb4ab849313bcf
- https://git.kernel.org/stable/c/ec6c32b58e6c4e87760e797c525e99a460c82bcb
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49912
- https://nvd.nist.gov/vuln/detail/CVE-2024-49912
- https://launchpad.net/bugs/cve/CVE-2024-49912
- https://security-tracker.debian.org/tracker/CVE-2024-49912
- https://ubuntu.com/security/CVE-2024-49912
- https://git.kernel.org/linus/8141f21b941710ecebe49220b69822cab3abd23d
Frequently Asked Questions
What systems are impacted by CVE-2024-49912?
CVE-2024-49912 impacts systems running specific versions of the Linux kernel, especially those using AMD display drivers.
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