CVE-2026-72235
8.8
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 6e189f14d1ea28db212b9d70a02131a7ce518012 | affected |
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < a1820344b180cb55af748f102bc536b5c93164db | affected |
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 6abf73589bed3f27ee240c08108feb72bed0b9c6 | affected |
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < f19259395b44af67f3c274e34237c295b526b859 | affected |
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 2cefa5141cab8ec1e4b24cf585958b13f2e3049d | affected |
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 85a71a81854e0e191ad0e533eabb4eff54866feb | affected |
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < b031fc97e1993d29d6c3a0e86a99140528cf31e8 | affected |
| Linux | Linux | c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 035e1fed892d3d06002a73ff73668f618a514644 | affected |
| Linux | Linux | 2.6.38 | affected |
| Linux | Linux | 0 < 2.6.38 | unaffected |
| Linux | Linux | 5.10.261 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.212 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.178 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.145 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.97 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.40 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.5 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
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
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