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CVE-2026-80601

batman-adv: gw: acquire ethernet header only after skb realloc

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in 2760b38222c8828b075802342fe3b91eb823d542; From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in 6c37f1166549c999ccd164b0cb6462d1ae68f8f6; From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in b79884a5567bf788fb76c30832467cf6a56f3c0d; From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in afac8096bde4948e3caa7e4dd733867cfbd3018e; From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in e3f4325e35dd6e76b80665f3510738ce34819753; From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in e6b43acd34b219b807e65096ce207b087942779d; From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in 916dac5f2944f63f07f7b501acbea6737dbbed0e; From 6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 · fixed in 77880a3be88d378d60cc1e8f8ec70430e2ed0518

  • Linux Linux

    3.14

  • KernelLinux

    From 3.14.0 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8

git.kernel.org