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.
Affected versions
Linux kernel versions
2.6.38
and later are affected. Fixed in
5.10.261,
5.15.212,
6.1.178,
6.6.145,
6.12.97,
6.18.40,
7.1.5,
7.2-rc2
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-72235?
CVE-2026-72235 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.38 onward and has been patched in 5.10.261, 5.15.212, 6.1.178 and others. CVE-2026-72235 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-72235?
Yes. CVE-2026-72235 has been patched. Fixed versions include 5.10.261, 5.15.212, 6.1.178 and others. If you are running Linux kernel 2.6.38 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-72235 actively exploited?
No. CVE-2026-72235 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.