CVE-2026-23441
kernel: net/mlx5e: Prevent concurrent access to IPSec ASO context
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 3, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's net/mlx5e driver. A race condition occurs when the ASO spinlock is released prematurely, allowing concurrent operations to overwrite a shared Direct Memory Access (DMA) context. This can lead to the processing of corrupted data, resulting in unexpected behavior and incorrect results within the IPSec offload functionality.
Statement
This issue is limited to Mellanox ConnectX adapters using IPSec full offload with the shared ASO WQE path. Corrupted ASO context can break IPSec state or cause instability; exploitation for arbitrary code execution is not established. Systems without mlx5 or without IPSec offload are not affected.
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-821 · Incorrect Synchronization