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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.34% probability · 28th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/035e1fed892d3d06002a73ff73668f618a514644
- https://git.kernel.org/stable/c/2cefa5141cab8ec1e4b24cf585958b13f2e3049d
- https://git.kernel.org/stable/c/6abf73589bed3f27ee240c08108feb72bed0b9c6
- https://git.kernel.org/stable/c/6e189f14d1ea28db212b9d70a02131a7ce518012
- https://git.kernel.org/stable/c/85a71a81854e0e191ad0e533eabb4eff54866feb
- https://git.kernel.org/stable/c/a1820344b180cb55af748f102bc536b5c93164db
- https://git.kernel.org/stable/c/b031fc97e1993d29d6c3a0e86a99140528cf31e8
- https://git.kernel.org/stable/c/f19259395b44af67f3c274e34237c295b526b859
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.