{"id":"CVE-2026-80600","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80600","summary":"batman-adv: dat: acquire ARP hw source only after skb realloc","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: acquire ARP hw source only after skb realloc\n\nThe pskb_may_pull() called by batadv_get_vid() could reallocate the buffer\nbehind the skb. Variables which were pointing to the old buffer need to be\nreassigned to avoid an use-after-free.","published":"2026-08-28T06:48:27.351Z","modified":"2026-08-30T03:48:20.869619649Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.10.261"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/01678c53a7717a748aee388b6839e7b9761d641c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/059a70e1d12d6d99310e0599d37b0323557569a8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3b4c70c40f2e135a50cd38fc61c7d23a296a9981"},{"type":"WEB","url":"https://git.kernel.org/stable/c/48067b2ae4504500a7093d9e1e16b42e70330480"},{"type":"WEB","url":"https://git.kernel.org/stable/c/86aa79b43e5b561fd3648891165bd7313b541315"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a82fc217cb7a447313c76ebf9f09b100771b0ddf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d755cd001fa2c248e186c1fc3df3d11d97dc843c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80600.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80600"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-30T03:48:20.869619649Z"}}