{"id":"CVE-2026-98791","summary":"net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference\n\nDuring XSK TX queue teardown, outstanding descriptors are completed\nwithout a CQE. If one requested a TX timestamp, the completion path\npasses that NULL CQE to mlx5e_xsk_fill_timestamp(), which dereferences\nit.\n\nReturn zero when no CQE is available, indicating that teardown did not\nproduce a TX timestamp.","modified":"2026-10-20T02:30:17.327991160Z","published":"2026-10-18T15:48:30.080Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98791.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/63df0ef4c6e3105589e6bb2e758ce611b0ada86c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7b97273cbebe9dd4fddc457f0c4f2a124d0e3996"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f81d40e2eb69552334f510114f3e6edd0d43178b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fce70b6bf9f3261e887419a4e7caa25b80fa9d55"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98791.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98791"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ec706a860eba99bf934d59f74b5db90af44e882e"},{"fixed":"fce70b6bf9f3261e887419a4e7caa25b80fa9d55"},{"fixed":"f81d40e2eb69552334f510114f3e6edd0d43178b"},{"fixed":"63df0ef4c6e3105589e6bb2e758ce611b0ada86c"},{"fixed":"7b97273cbebe9dd4fddc457f0c4f2a124d0e3996"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98791.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.113"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.56"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98791.json"}}],"schema_version":"1.9.0"}