CVE-2026-31781
drm/ioc32: stop speculation on the drm_compat_ioctl path
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.
INFO
Published Date :
May 1, 2026, 3:16 p.m.
Last Modified :
May 1, 2026, 3:24 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-31781
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Apply vendor-provided security patches.
- Ensure array_index_nospec() is used for function pointers.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-31781.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-31781 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-31781
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-31781 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-31781 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2026
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/27ef84bba9b9d7b03418c60fbc6069ea0e87b13c Added Reference https://git.kernel.org/stable/c/46a60ee8956ef1975f00455f614761c7ecedc09d Added Reference https://git.kernel.org/stable/c/489f2ef2b908898d01df697dc4fe1476674be640 Added Reference https://git.kernel.org/stable/c/4a41c2b18fc05d30b718d2602cac339eae710b34 Added Reference https://git.kernel.org/stable/c/5bb398991f378ef74d90b14a6ea8b61ff96cc03a Added Reference https://git.kernel.org/stable/c/d59c5d8539662d95887b4564f3f72ad38076a2d5 Added Reference https://git.kernel.org/stable/c/f0e441be08a2eab10b2d06fccfa267ee599dd6b3 Added Reference https://git.kernel.org/stable/c/f8995c2df519f382525ca4bc90553ad2ec611067