{"id":"CVE-2026-74710","summary":"xsk: require at least 16 bytes of TX metadata","details":"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.","modified":"2026-08-27T11:31:14.238004401Z","published":"2026-08-22T15:33:07.172Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74710.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1bb30b181d9f0484e141f8411e15ed906d5c6780"},{"type":"WEB","url":"https://git.kernel.org/stable/c/21b8536aee819792f1b4b38b9aacf2a073025d49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/642c6e73fce17fdca93a5793c4d22359fda866d7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfb9d2976b277e554e28c165e3eff4b4a8ea10bd"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74710.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74710"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"341ac980eab90ac1f6c22ee9f9da83ed9604d899"},{"fixed":"21b8536aee819792f1b4b38b9aacf2a073025d49"},{"fixed":"642c6e73fce17fdca93a5793c4d22359fda866d7"},{"fixed":"cfb9d2976b277e554e28c165e3eff4b4a8ea10bd"},{"fixed":"1bb30b181d9f0484e141f8411e15ed906d5c6780"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74710.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.104"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74710.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}