CVE-2026-31781

medium Red Hat
CVSS v3 Base Score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0%
Exploitation probability in 30 days
Top 93% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: May 1, 2026 (13 days ago)
Last Modified: May 1, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) subsystem, specifically in the `drm/ioc32` component. This vulnerability, related to speculative execution (a technique used by modern processors to guess future instructions), allows a local attacker to potentially disclose sensitive information. The `drm_compat_ioctl` path incorrectly handles user-controlled pointers, leading to a Spectre-like issue where data can be exposed through speculative execution side channels.

CWE

CWE-515

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org