CVE-2026-72234
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linuxaa9558af859934f24717d4bab97d61004f91a736, 9c2c05629e46c1fd43931506d41c56a885a98eb4, 7b162b36de750565404cd3b98315706622c6974f, ed90eb5c68420cdfe67ec1f773324198d2ef6f50, 979175834a699ccc3c4c0b0ba60ecae0f135a587, b8afcf799b2cc92c41beebd029e53ed18960184a, 9a7b7248798123efbd5fafe58461d57c7cc718af, 7141990add3f75436f2933cb310654cad3b1e3e9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < aa9558af859934f24717d4bab97d61004f91a736, c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < 9c2c05629e46c1fd43931506d41c56a885a98eb4, c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < 7b162b36de750565404cd3b98315706622c6974f, c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < ed90eb5c68420cdfe67ec1f773324198d2ef6f50, c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < 979175834a699ccc3c4c0b0ba60ecae0f135a587, c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < b8afcf799b2cc92c41beebd029e53ed18960184a, c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < 9a7b7248798123efbd5fafe58461d57c7cc718af, c018ad3de61a1dc4194879a53e5559e094aa7b1a ≤ v < 7141990add3f75436f2933cb310654cad3b1e3e9, 3.13 | aa9558af859934f24717d4bab97d61004f91a736, 9c2c05629e46c1fd43931506d41c56a885a98eb4, 7b162b36de750565404cd3b98315706622c6974f, ed90eb5c68420cdfe67ec1f773324198d2ef6f50, 979175834a699ccc3c4c0b0ba60ecae0f135a587, b8afcf799b2cc92c41beebd029e53ed18960184a, 9a7b7248798123efbd5fafe58461d57c7cc718af, 7141990add3f75436f2933cb310654cad3b1e3e9 |
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