CVE-2026-80601
batman-adv: gw: acquire ethernet header only after skb realloc
HIGH 8.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.40 % · percentile 34 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.
References
- https://git.kernel.org/stable/c/2760b38222c8828b075802342fe3b91eb823d542
- https://git.kernel.org/stable/c/6c37f1166549c999ccd164b0cb6462d1ae68f8f6
- https://git.kernel.org/stable/c/b79884a5567bf788fb76c30832467cf6a56f3c0d
- https://git.kernel.org/stable/c/afac8096bde4948e3caa7e4dd733867cfbd3018e
- https://git.kernel.org/stable/c/e3f4325e35dd6e76b80665f3510738ce34819753
- https://git.kernel.org/stable/c/e6b43acd34b219b807e65096ce207b087942779d
- https://git.kernel.org/stable/c/916dac5f2944f63f07f7b501acbea6737dbbed0e
- https://git.kernel.org/stable/c/77880a3be88d378d60cc1e8f8ec70430e2ed0518
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-67477
- GCVE · GCVE-0-2026-80601
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 < 2760b38222c8828b075802342fe3b91eb823d542 ; affected 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 < 6c37f1166549c999ccd164b0cb6462d1ae68f8f6 ; affected 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 < b79884a5567bf788fb76c30832467cf6a56f3c0d ; affected 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 < afac8096bde4948e3caa7e4dd733867cfbd3018e ; affected 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 < e3f4325e35dd6e76b80665f3510738ce34819753 ; affected 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 < e6b43acd34b219b807e65096ce207b087942779d |
| Linux · Linux | affected 3.14 ; unaffected 0 < 3.14 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |