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.
References8
- git.kernel.org/stable/c/2760b38222c8828b075802342fe3b91eb823d542
- git.kernel.org/stable/c/6c37f1166549c999ccd164b0cb6462d1ae68f8f6
- git.kernel.org/stable/c/77880a3be88d378d60cc1e8f8ec70430e2ed0518
- git.kernel.org/stable/c/916dac5f2944f63f07f7b501acbea6737dbbed0e
- git.kernel.org/stable/c/afac8096bde4948e3caa7e4dd733867cfbd3018e
- git.kernel.org/stable/c/b79884a5567bf788fb76c30832467cf6a56f3c0d
- git.kernel.org/stable/c/e3f4325e35dd6e76b80665f3510738ce34819753
- git.kernel.org/stable/c/e6b43acd34b219b807e65096ce207b087942779d
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 35 · as of 8 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.