CVE-2026-72234
9.8
CVSS:3.1/AV:N/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: 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < aa9558af859934f24717d4bab97d61004f91a736 | affected |
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < 9c2c05629e46c1fd43931506d41c56a885a98eb4 | affected |
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < 7b162b36de750565404cd3b98315706622c6974f | affected |
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < ed90eb5c68420cdfe67ec1f773324198d2ef6f50 | affected |
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < 979175834a699ccc3c4c0b0ba60ecae0f135a587 | affected |
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < b8afcf799b2cc92c41beebd029e53ed18960184a | affected |
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < 9a7b7248798123efbd5fafe58461d57c7cc718af | affected |
| Linux | Linux | c018ad3de61a1dc4194879a53e5559e094aa7b1a < 7141990add3f75436f2933cb310654cad3b1e3e9 | affected |
| Linux | Linux | 3.13 | affected |
| Linux | Linux | 0 < 3.13 | 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/aa9558af859934f24717d4bab97d61004f91a736
- https://git.kernel.org/stable/c/9c2c05629e46c1fd43931506d41c56a885a98eb4
- https://git.kernel.org/stable/c/7b162b36de750565404cd3b98315706622c6974f
- https://git.kernel.org/stable/c/ed90eb5c68420cdfe67ec1f773324198d2ef6f50
- https://git.kernel.org/stable/c/979175834a699ccc3c4c0b0ba60ecae0f135a587
- https://git.kernel.org/stable/c/b8afcf799b2cc92c41beebd029e53ed18960184a
- https://git.kernel.org/stable/c/9a7b7248798123efbd5fafe58461d57c7cc718af
- https://git.kernel.org/stable/c/7141990add3f75436f2933cb310654cad3b1e3e9
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.