CVE-2024-56752: drm/nouveau/gr/gf100: Fix missing unlock in gf100_gr_chan_new()
First published: Sun Dec 29 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/gr/gf100: Fix missing unlock in gf100_gr_chan_new() When the call to gf100_grctx_generate() fails, unlock gr->fecs.mutex before returning the error. Fixes smatch warning: drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c:480 gf100_gr_chan_new() warn: inconsistent returns '&gr->fecs.mutex'.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.2<6.6.64 | |
| Linux Kernel | >=6.11.0<6.11.11 | |
| Linux Kernel | >=6.12<6.12.2 | |
| 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 |
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Reference Links
- https://git.kernel.org/stable/c/237f2dbfa00576bb1aa8dc2dce403c64e53270e6
- https://git.kernel.org/stable/c/22b4a623c0f230540f02f4358744cce62ae12dbf
- https://git.kernel.org/stable/c/24b1df744ef444f9846f52de4985790a5fd1c0de
- https://git.kernel.org/stable/c/a2f599046c671d6b46d93aed95b37241ce4504cf
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56752
- https://nvd.nist.gov/vuln/detail/CVE-2024-56752
- https://launchpad.net/bugs/cve/CVE-2024-56752
- https://security-tracker.debian.org/tracker/CVE-2024-56752
- https://ubuntu.com/security/CVE-2024-56752
- https://git.kernel.org/linus/a2f599046c671d6b46d93aed95b37241ce4504cf
Frequently Asked Questions
What is the severity of CVE-2024-56752?
CVE-2024-56752 has not been assigned a severity score, but it addresses a critical issue in the Linux kernel related to mutex unlock failures.
How do I fix CVE-2024-56752?
To fix CVE-2024-56752, update to a patched version of the Linux kernel that addresses the mutex unlock issue.
What versions of the Linux kernel are affected by CVE-2024-56752?
CVE-2024-56752 affects Linux kernel versions between 6.2 and 6.6.64, as well as specific versions in the 6.11.x and 6.12.x series.
Is there a workaround for CVE-2024-56752?
Currently, there are no specific workarounds published for CVE-2024-56752, so updating the kernel is recommended.
What components are involved in CVE-2024-56752?
CVE-2024-56752 involves the DRM Nouveau driver and the gf100 graphics architecture in the Linux kernel.
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