{"id":"CVE-2026-80601","summary":"batman-adv: gw: acquire ethernet header only after skb realloc","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: gw: acquire ethernet header 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.","modified":"2026-08-31T03:30:52.859155992Z","published":"2026-08-28T06:48:27.948Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80601.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2760b38222c8828b075802342fe3b91eb823d542"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6c37f1166549c999ccd164b0cb6462d1ae68f8f6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/77880a3be88d378d60cc1e8f8ec70430e2ed0518"},{"type":"WEB","url":"https://git.kernel.org/stable/c/916dac5f2944f63f07f7b501acbea6737dbbed0e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/afac8096bde4948e3caa7e4dd733867cfbd3018e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b79884a5567bf788fb76c30832467cf6a56f3c0d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e3f4325e35dd6e76b80665f3510738ce34819753"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e6b43acd34b219b807e65096ce207b087942779d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80601.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80601"},{"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":"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9"},{"fixed":"2760b38222c8828b075802342fe3b91eb823d542"},{"fixed":"6c37f1166549c999ccd164b0cb6462d1ae68f8f6"},{"fixed":"b79884a5567bf788fb76c30832467cf6a56f3c0d"},{"fixed":"afac8096bde4948e3caa7e4dd733867cfbd3018e"},{"fixed":"e3f4325e35dd6e76b80665f3510738ce34819753"},{"fixed":"e6b43acd34b219b807e65096ce207b087942779d"},{"fixed":"916dac5f2944f63f07f7b501acbea6737dbbed0e"},{"fixed":"77880a3be88d378d60cc1e8f8ec70430e2ed0518"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80601.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.14.0"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80601.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}