UNKNOWN NVD
CVE-2026-98181
In the Linux kernel, the following vulnerability has been resolved: drm/gud: fix out-of-bounds write in gud_plane_atomic_check() The plane property loop uses
In the Linux kernel, the following vulnerability has been resolved:
drm/gud: fix out-of-bounds write in gud_plane_atomic_check()
The plane property loop uses req->properties[num_properties + i] as write
index while simultaneously incrementing `num_properties` inside the loop.
At iteration i, num_properties has also incremented by i, so the write
is done at `initial_num_properties + 2*i`, skipping every other index and
advancing by 2 per iteration.
With just 2 connector and 32 plane properties the last write happens at
index 64, one slot past the end of the 64-slot (indices 0–63)
allocation. A USB device can trigger OOB by advertising the maximum
number of properties.
Fix by dropping the redundant `+ i`; num_properties is already the correct
running index, as gud_connector_fill_properties() fills the preceding
slots.
References
- https://git.kernel.org/stable/c/2c92af27ad23e2fbc0367b11a9027d36d94ef4b3
- https://git.kernel.org/stable/c/4153a9e008f2512bd3cf90a319436865847369b9
- https://git.kernel.org/stable/c/59ced288fcba9e91bd38e61a972ad782c4edb7d0
- https://git.kernel.org/stable/c/5f5e565410b4987e9663f599f9ab0c350f8338d4
- https://git.kernel.org/stable/c/7e630edb22088df7aa0d55b02237a71e4c9a523d
This unknown severity vulnerability was published on 2026-10-06 via NVD.
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