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CVE-2026-98791

Unknown

Last modified

CVE-2026-98791 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= ec706a860eba99bf934d59f74b5db90af44e882e, < fce70b6bf9f3261e887419a4e7caa25b80fa9d55; >= ec706a860eba99bf934d59f74b5db90af44e882e, < f81d40e2eb69552334f510114f3e6edd0d43178b; >= ec706a860eba99bf934d59f74b5db90af44e882e, < 63df0ef4c6e3105589e6bb2e758ce611b0ada86c; >= ec706a860eba99bf934d59f74b5db90af44e882e, < 7b97273cbebe9dd4fddc457f0c4f2a124d0e3996
LinuxLinux6.8

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98791?
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.
How severe is CVE-2026-98791?
Severity scoring for CVE-2026-98791 is pending analysis.
How do I fix CVE-2026-98791?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST