Medium severity5.5NVD Advisory· Published May 1, 2026· Updated May 11, 2026
CVE-2026-31781
CVE-2026-31781
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/ioc32: stop speculation on the drm_compat_ioctl path
The drm compat ioctl path takes a user controlled pointer, and then dereferences it into a table of function pointers, the signature method of spectre problems. Fix this up by calling array_index_nospec() on the index to the function pointer list.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
8cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=3.16.63,<3.17
- cpe:2.3:o:linux:linux_kernel:4.20:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/27ef84bba9b9d7b03418c60fbc6069ea0e87b13cnvdPatch
- git.kernel.org/stable/c/46a60ee8956ef1975f00455f614761c7ecedc09dnvdPatch
- git.kernel.org/stable/c/489f2ef2b908898d01df697dc4fe1476674be640nvdPatch
- git.kernel.org/stable/c/4a41c2b18fc05d30b718d2602cac339eae710b34nvdPatch
- git.kernel.org/stable/c/5bb398991f378ef74d90b14a6ea8b61ff96cc03anvdPatch
- git.kernel.org/stable/c/d59c5d8539662d95887b4564f3f72ad38076a2d5nvdPatch
- git.kernel.org/stable/c/f0e441be08a2eab10b2d06fccfa267ee599dd6b3nvdPatch
- git.kernel.org/stable/c/f8995c2df519f382525ca4bc90553ad2ec611067nvdPatch
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