CVE-2026-31781
MEDIUMdrm/ioc32: stop speculation on the drm_compat_ioctl path
Title source: cnaDescription
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
Core References
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