CVE-2026-98791

medium

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference During XSK TX queue teardown, outstanding descriptors are completed without a CQE. If one requested a TX timestamp, the completion path passes that NULL CQE to mlx5e_xsk_fill_timestamp(), which dereferences it. Return zero when no CQE is available, indicating that teardown did not produce a TX timestamp.

References

https://git.kernel.org/stable/c/fce70b6bf9f3261e887419a4e7caa25b80fa9d55

https://git.kernel.org/stable/c/f81d40e2eb69552334f510114f3e6edd0d43178b

https://git.kernel.org/stable/c/7b97273cbebe9dd4fddc457f0c4f2a124d0e3996

https://git.kernel.org/stable/c/63df0ef4c6e3105589e6bb2e758ce611b0ada86c

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103876

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-18

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium