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CVE-2026-98791

net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected ec706a860eba99bf934d59f74b5db90af44e882e before fce70b6bf9f3261e887419a4e7caa25b80fa9d55; affected ec706a860eba99bf934d59f74b5db90af44e882e before f81d40e2eb69552334f510114f3e6edd0d43178b; affected ec706a860eba99bf934d59f74b5db90af44e882e before 63df0ef4c6e3105589e6bb2e758ce611b0ada86c; affected ec706a860eba99bf934d59f74b5db90af44e882e before 7b97273cbebe9dd4fddc457f0c4f2a124d0e3996
Linux / Linuxaffected 6.8; unaffected 0 before 6.8; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References