Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: access unicast_ttvn skb->data only after skb realloc The pskb_may_pull() called by batadv_get_vid() 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 ethernet header but missed for the unicast_packet pointer.
CVSS Score
CRITICAL
References
- https://git.kernel.org/stable/c/7141990add3f75436f2933cb310654cad3b1e3e9
- https://git.kernel.org/stable/c/7b162b36de750565404cd3b98315706622c6974f
- https://git.kernel.org/stable/c/979175834a699ccc3c4c0b0ba60ecae0f135a587
- https://git.kernel.org/stable/c/9a7b7248798123efbd5fafe58461d57c7cc718af
- https://git.kernel.org/stable/c/9c2c05629e46c1fd43931506d41c56a885a98eb4
- https://git.kernel.org/stable/c/aa9558af859934f24717d4bab97d61004f91a736
- https://git.kernel.org/stable/c/b8afcf799b2cc92c41beebd029e53ed18960184a
- https://git.kernel.org/stable/c/ed90eb5c68420cdfe67ec1f773324198d2ef6f50
FAQ
What is CVE-2026-72234?
CVE-2026-72234 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In the Linux kernel, the following vulnerability has been resolved: batman-adv: access unicast_ttvn skb->data only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate t...
How severe is CVE-2026-72234?
CVE-2026-72234 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-72234?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.