CVE-2026-31781

MEDIUM

drm/ioc32: stop speculation on the drm_compat_ioctl path

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (31)
Linux/Linux < 4.20
Linux/Linux 00279b505289f7529d9be2e78915d0483ffbd314
Linux/Linux 3.16.63 - 3.17
Linux/Linux 4.14.91 - 4.15
Linux/Linux 4.19.13 - 4.20
Linux/Linux 4.20
Linux/Linux 4.4.170 - 4.5
Linux/Linux 4.9.148 - 4.10
Linux/Linux 5.10.253 - 5.10.*
Linux/Linux 5.15.203 - 5.15.*
... and 21 more
Published May 01, 2026
Tracked Since May 01, 2026