{"id":"CVE-2026-89954","published":"2026-09-16T11:17:05.667","lastModified":"2026-09-16T15:18:20.140","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: afs: validate v2 image info bounds\n\nThe AFS v2 parser uses footer[8] to locate the image information block\ninside the current erase block, then uses the image information\nregion_count to walk entries from a fixed local array. The footer offset\nand region count come from flash contents and are not checked against the\nerase block or the local image-info array before use.\n\nReject v2 entries whose image information offset would underflow the\nerase block calculation, and reject region counts that cannot fit in the\nlocal image-info array before walking region entries.","cvssScore":8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/18916f475057cbd2fb8ea6ae86e6b85884ad1d53","tags":[]},{"url":"https://git.kernel.org/stable/c/1bec05a68414cf8d0cab6cb42445b8603f32ffc4","tags":[]},{"url":"https://git.kernel.org/stable/c/1edea8900ca3e405c1421d8b5c29f97107874f72","tags":[]},{"url":"https://git.kernel.org/stable/c/3ad8ff12fd44b08af9212ac4883a7e29d2ab7348","tags":[]},{"url":"https://git.kernel.org/stable/c/875daa3c750814ff2e2dc050239c390048f0bcd0","tags":[]},{"url":"https://git.kernel.org/stable/c/d14e6298139f58a87a87d7022e26a7f37f0ddce7","tags":[]},{"url":"https://git.kernel.org/stable/c/da740539e8f370767317e24615349b9342a6e773","tags":[]},{"url":"https://git.kernel.org/stable/c/e9290031f736e99ad17c25c00311c92c266843b7","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}