{"id":"CVE-2026-98791","revision":"76a665189a1d40ba826f9de0785edbef","records":[{"revision":"76a665189a1d40ba826f9de0785edbef","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98791","aliases":[],"title":"net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference","description":"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.","state":0,"publishedAt":"2026-10-18T15:48:30.08+00:00","modifiedAt":"2026-10-19T09:25:44.148+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"ec706a860eba99bf934d59f74b5db90af44e882e\",\n                            \"lessThan\": \"fce70b6bf9f3261e887419a4e7caa25b80fa9d55\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ec706a860eba99bf934d59f74b5db90af44e882e\",\n                            \"lessThan\": \"f81d40e2eb69552334f510114f3e6edd0d43178b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ec706a860eba99bf934d59f74b5db90af44e882e\",\n                            \"lessThan\": \"63df0ef4c6e3105589e6bb2e758ce611b0ada86c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ec706a860eba99bf934d59f74b5db90af44e882e\",\n                            \"lessThan\": \"7b97273cbebe9dd4fddc457f0c4f2a124d0e3996\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.113\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.56\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.10\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/fce70b6bf9f3261e887419a4e7caa25b80fa9d55","https://git.kernel.org/stable/c/f81d40e2eb69552334f510114f3e6edd0d43178b","https://git.kernel.org/stable/c/63df0ef4c6e3105589e6bb2e758ce611b0ada86c","https://git.kernel.org/stable/c/7b97273cbebe9dd4fddc457f0c4f2a124d0e3996"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98791","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98791","identifiers":["CVE-2026-98791"]},"retained":false,"historicalAffected":[]}],"coverage":[]}