CVE-2026-31518
kernel: esp: fix skb leak with espintcp and async crypto
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 22, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel. When the espintcp component processes network traffic using asynchronous cryptography, a memory leak can occur. This happens because a socket buffer (skb) is not correctly released if the transmit queue becomes full. This continuous leak of memory can lead to resource exhaustion, potentially allowing a remote attacker to cause a Denial of Service (DoS) on the system.
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