{"id":"CVE-2026-74710","revision":"27053f4d070c4cd8bffef97eeabdbde0","records":[{"revision":"27053f4d070c4cd8bffef97eeabdbde0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74710","aliases":[],"title":"xsk: require at least 16 bytes of TX metadata","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: require at least 16 bytes of TX metadata\n\nAF_XDP accepts a TX metadata length as small as eight bytes, but every\nsupported request needs the flags plus at least one eight-byte request\nfield. Such short metadata also lets the kernel read beyond the registered\narea.\n\nRequire 16 bytes rather than sizeof(struct xsk_tx_metadata) to preserve\ncompatibility with applications that do not use launch-time metadata.","state":0,"publishedAt":"2026-08-22T15:33:07.172+00:00","modifiedAt":"2026-10-16T19:16:11.065+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                        \"net/xdp/xdp_umem.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"341ac980eab90ac1f6c22ee9f9da83ed9604d899\",\n                            \"lessThan\": \"21b8536aee819792f1b4b38b9aacf2a073025d49\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"341ac980eab90ac1f6c22ee9f9da83ed9604d899\",\n                            \"lessThan\": \"642c6e73fce17fdca93a5793c4d22359fda866d7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"341ac980eab90ac1f6c22ee9f9da83ed9604d899\",\n                            \"lessThan\": \"cfb9d2976b277e554e28c165e3eff4b4a8ea10bd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"341ac980eab90ac1f6c22ee9f9da83ed9604d899\",\n                            \"lessThan\": \"1bb30b181d9f0484e141f8411e15ed906d5c6780\",\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                        \"net/xdp/xdp_umem.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\": \"6.12.104\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.45\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.9\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/21b8536aee819792f1b4b38b9aacf2a073025d49","https://git.kernel.org/stable/c/642c6e73fce17fdca93a5793c4d22359fda866d7","https://git.kernel.org/stable/c/cfb9d2976b277e554e28c165e3eff4b4a8ea10bd","https://git.kernel.org/stable/c/1bb30b181d9f0484e141f8411e15ed906d5c6780"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74710","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74710","identifiers":["CVE-2026-74710"]},"retained":false,"historicalAffected":[]}],"coverage":[]}