What’s Vulnerable › Vulnerabilities

CVE-2024-56752: drm/nouveau/gr/gf100: Fix missing unlock in gf100_gr_chan_new()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-29 · updated 2026-06-17

Description

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'.

Affected products

• Linux kernel: from 6.2 before 6.6.64; from 6.11.0 before 6.11.11; from 6.12 before 6.12.2 — fixed in 6.11.11, 6.12.2, 6.6.64

How to fix

Upgrade to a fixed version: Linux kernel 6.11.11, 6.12.2, 6.6.64. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/22b4a623c0f230540f02f4358744cce62ae12dbf
• https://git.kernel.org/stable/c/237f2dbfa00576bb1aa8dc2dce403c64e53270e6
• https://git.kernel.org/stable/c/24b1df744ef444f9846f52de4985790a5fd1c0de
• https://git.kernel.org/stable/c/a2f599046c671d6b46d93aed95b37241ce4504cf

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