CVEvulnerability
CVE-2026-72235
8.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: retrieve ethhdr after potential skb realloc on RX
pskb_may_pull() in batadv_interface_rx() 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.
This was done correctly for the VLAN header but missed for the ethernet
header which is later used for the TT and AP isolation handling.
References
- https://git.kernel.org/stable/c/035e1fed892d3d06002a73ff73668f618a514644 git.kernel.org
- https://git.kernel.org/stable/c/2cefa5141cab8ec1e4b24cf585958b13f2e3049d git.kernel.org
- https://git.kernel.org/stable/c/6abf73589bed3f27ee240c08108feb72bed0b9c6 git.kernel.org
- https://git.kernel.org/stable/c/6e189f14d1ea28db212b9d70a02131a7ce518012 git.kernel.org
- https://git.kernel.org/stable/c/85a71a81854e0e191ad0e533eabb4eff54866feb git.kernel.org
- https://git.kernel.org/stable/c/a1820344b180cb55af748f102bc536b5c93164db git.kernel.org
- https://git.kernel.org/stable/c/b031fc97e1993d29d6c3a0e86a99140528cf31e8 git.kernel.org
- https://git.kernel.org/stable/c/f19259395b44af67f3c274e34237c295b526b859 git.kernel.org