{"id":"CVE-2026-72234","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-72234","summary":"batman-adv: access unicast_ttvn skb->data only after skb realloc","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: access unicast_ttvn skb->data 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.\n\nThis was done correctly for the ethernet header but missed for the\nunicast_packet pointer.","published":"2026-08-15T05:54:24.395Z","modified":"2026-08-16T03:48:38.471737122Z","cvss":null,"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/7141990add3f75436f2933cb310654cad3b1e3e9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7b162b36de750565404cd3b98315706622c6974f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/979175834a699ccc3c4c0b0ba60ecae0f135a587"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a7b7248798123efbd5fafe58461d57c7cc718af"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9c2c05629e46c1fd43931506d41c56a885a98eb4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aa9558af859934f24717d4bab97d61004f91a736"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b8afcf799b2cc92c41beebd029e53ed18960184a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ed90eb5c68420cdfe67ec1f773324198d2ef6f50"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72234.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72234"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-16T03:48:38.471737122Z"}}