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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-72234

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

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < aa9558af859934f24717d4bab97d61004f91a736affected
  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < 9c2c05629e46c1fd43931506d41c56a885a98eb4affected
  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < 7b162b36de750565404cd3b98315706622c6974faffected
  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < ed90eb5c68420cdfe67ec1f773324198d2ef6f50affected
  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < 979175834a699ccc3c4c0b0ba60ecae0f135a587affected
  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < b8afcf799b2cc92c41beebd029e53ed18960184aaffected
  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < 9a7b7248798123efbd5fafe58461d57c7cc718afaffected
  • c018ad3de61a1dc4194879a53e5559e094aa7b1a to < 7141990add3f75436f2933cb310654cad3b1e3e9affected

Linux Linux

Default version status: affected

  • 3.13affected
  • 0 to < 3.13unaffected
  • 5.10.261 to ≤ 5.10.*unaffected
  • 5.15.212 to ≤ 5.15.*unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.97 to ≤ 6.12.*unaffected
  • 6.18.40 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References