CVE-2026-31781In 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 derefe…
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 3.16.63 before 3.17; from 4.4.170 before 4.5; from 4.9.148 before 4.10; from 4.14.91 before 4.15; from 4.19.13 before 4.20; from 4.20.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.168; and 11 more ranges | NVD |
References
- https://git.kernel.org/stable/c/27ef84bba9b9d7b03418c60fbc6069ea0e87b13cpatch
- https://git.kernel.org/stable/c/46a60ee8956ef1975f00455f614761c7ecedc09dpatch
- https://git.kernel.org/stable/c/489f2ef2b908898d01df697dc4fe1476674be640patch
- https://git.kernel.org/stable/c/4a41c2b18fc05d30b718d2602cac339eae710b34patch
- https://git.kernel.org/stable/c/5bb398991f378ef74d90b14a6ea8b61ff96cc03apatch
- https://git.kernel.org/stable/c/d59c5d8539662d95887b4564f3f72ad38076a2d5patch
- https://git.kernel.org/stable/c/f0e441be08a2eab10b2d06fccfa267ee599dd6b3patch
- https://git.kernel.org/stable/c/f8995c2df519f382525ca4bc90553ad2ec611067patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.