CVE-2026-31429

medium Red Hat
CVSS v3 Base Score
6.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
EPSS Score
0.0%
Exploitation probability in 30 days
Top 96% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
High
Published: April 20, 2026 (24 days ago)
Last Modified: April 20, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel. When the Kernel Electric Fence (KFENCE), a memory safety error detector, is enabled, a memory corruption vulnerability can occur. This happens because the `skb_kfree_head()` function incorrectly frees network buffer (skb) head data to the wrong memory cache. This misallocation can lead to system instability or denial of service.

CWE

CWE-763

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