EUVD-2026-103668
GHSA-5c9q-m24x-7r34
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Alert meAnalysisCVE.org
In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau/clk: fix list cursor use after loop in nvkm_clk_ustate_update
If list_for_each_entry() exits without hitting a break then "pstate" is not a valid pstate pointer. Introduce a "found" variable instead.
The check is reachable from userspace: nvkm_clk_ustate_update() takes the pstate id straight from the 'pstate' debugfs file, so requesting an id that is not in clk->states - or any id at all when the perf tables are broken and the list is empty - makes the pstate->pstate != req test dereference the list head cast to a struct nvkm_pstate, which is an out-of-bounds read.
[Francesco: rebased on drm-misc-next, expanded the commit message]
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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How this decision was reached
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Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
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