CVE-2026-72235

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.

Score

CVSS 3.1 8.8 High

Status

Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-08-15

Last modified

2026-10-16

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/6e189f14d1ea28db212b9d70a02131a7ce518012
• https://git.kernel.org/stable/c/a1820344b180cb55af748f102bc536b5c93164db
• https://git.kernel.org/stable/c/6abf73589bed3f27ee240c08108feb72bed0b9c6
• https://git.kernel.org/stable/c/f19259395b44af67f3c274e34237c295b526b859
• https://git.kernel.org/stable/c/2cefa5141cab8ec1e4b24cf585958b13f2e3049d
• https://git.kernel.org/stable/c/85a71a81854e0e191ad0e533eabb4eff54866feb
• https://git.kernel.org/stable/c/b031fc97e1993d29d6c3a0e86a99140528cf31e8
• https://git.kernel.org/stable/c/035e1fed892d3d06002a73ff73668f618a514644