CVE-2026-31781
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-01
Modified: 2026-11-11
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Affected Software (27)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < 46a60ee8956ef1975f00455f614761c7ecedc09d |
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < 5bb398991f378ef74d90b14a6ea8b61ff96cc03a |
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < d59c5d8539662d95887b4564f3f72ad38076a2d5 |
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < 489f2ef2b908898d01df697dc4fe1476674be640 |
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < 4a41c2b18fc05d30b718d2602cac339eae710b34 |
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < f0e441be08a2eab10b2d06fccfa267ee599dd6b3 |
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < 27ef84bba9b9d7b03418c60fbc6069ea0e87b13c |
| Linux | Linux | 505b5240329b922f21f91d5b5d1e535c805eca6d < f8995c2df519f382525ca4bc90553ad2ec611067 |
| Linux | Linux | abc60edcfc87771ff244763d4d19c67766f5dd0f |
| Linux | Linux | a2a840d6dcae960c2dfdf3fcb1b759e1b7d90663 |
| Linux | Linux | 00279b505289f7529d9be2e78915d0483ffbd314 |
| Linux | Linux | d04e6ea0cec9e7d6cba806508f657d2d0dc6cacf |
| Linux | Linux | 7f3ebea19795eb38438cd3709fabf2afd53cf447 |
| Linux | Linux | 3.16.63 < 3.17 |
| Linux | Linux | 4.4.170 < 4.5 |
| Linux | Linux | 4.9.148 < 4.10 |
| Linux | Linux | 4.14.91 < 4.15 |
| Linux | Linux | 4.19.13 < 4.20 |
| Linux | Linux | 4.20 |
| linux | linux_kernel | 3.16.63 – 3.17 |
| linux | linux_kernel | 4.20 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |