CVE-2026-46281

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
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: June 8, 2026 (32 days ago)
Last Modified: June 8, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel. When shrinking a vmalloc allocation using the `vrealloc_node_align` function, if the requested new size is smaller than the old size, an out-of-bounds write can occur. This memory corruption vulnerability could allow a local attacker to cause a denial of service or potentially escalate privileges.

CWE

CWE-787

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