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CVE-2026-72234

batman-adv: access unicast_ttvn skb->data only after skb realloc PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected c018ad3de61a1dc4194879a53e5559e094aa7b1a before aa9558af859934f24717d4bab97d61004f91a736; affected c018ad3de61a1dc4194879a53e5559e094aa7b1a before 9c2c05629e46c1fd43931506d41c56a885a98eb4; affected c018ad3de61a1dc4194879a53e5559e094aa7b1a before 7b162b36de750565404cd3b98315706622c6974f; affected c018ad3de61a1dc4194879a53e5559e094aa7b1a before ed90eb5c68420cdfe67ec1f773324198d2ef6f50; affected c018ad3de61a1dc4194879a53e5559e094aa7b1a before 979175834a699ccc3c4c0b0ba60ecae0f135a587; affected c018ad3de61a1dc4194879a53e5559e094aa7b1a before b8afcf799b2cc92c41beebd029e53ed18960184a; affected c018ad3de61a1dc4194879a53e5559e094aa7b1a before 9a7b7248798123efbd5fafe58461d57c7cc718af; affected c018ad3de61a1dc4194879a53e5559e094aa7b1a before 7141990add3f75436f2933cb310654cad3b1e3e9
Linux / Linuxaffected 3.13; unaffected 0 before 3.13; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.