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.

References (8)

Core 8

Scores

CVSS v3 5.5
EPSS 0.0012
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 (38)
linux/Kernel 4.20.0 - 5.10.253linux
linux/Kernel 5.11.0 - 5.15.203linux
linux/Kernel 5.16.0 - 6.1.168linux
linux/Kernel 6.13.0 - 6.18.22linux
linux/Kernel 6.19.0 - 6.19.12linux
linux/Kernel 6.2.0 - 6.6.134linux
linux/Kernel 6.7.0 - 6.12.81linux
Linux/Linux < 4.20
Linux/Linux 00279b505289f7529d9be2e78915d0483ffbd314
Linux/Linux 3.16.63 - 3.17
... and 28 more
Published May 01, 2026
Tracked Since May 01, 2026