CVE-2026-52981
kernel: neigh: let neigh_xmit take skb ownership
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 24, 2026
Updated · October 13, 2026
Description
A flaw was found in the Linux kernel. The neigh_xmit function, when called with an uninitialized neighbor table (such as NEIGH_ND_TABLE when IPv6 is disabled), can return an error without properly releasing the allocated skb (socket buffer). This can lead to a memory leak, potentially impacting system stability and resource availability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime