Answer in brief
CVE-2026-72234 records a Critical severity (CVSS 9.8) vulnerability in batman-adv: access unicast_ttvn skb->data only after skb realloc. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <aa9558af859934f24717d4bab97d61004f91a736 || >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <9c2c05629e46c1fd43931506d41c56a885a98eb4 || >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <7b162b36de750565404cd3b98315706622c6974f || >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <ed90eb5c68420cdfe67ec1f773324198d2ef6f50 || >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <979175834a699ccc3c4c0b0ba60ecae0f135a587 || >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <b8afcf799b2cc92c41beebd029e53ed18960184a || >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <9a7b7248798123efbd5fafe58461d57c7cc718af || >=c018ad3de61a1dc4194879a53e5559e094aa7b1a <7141990add3f75436f2933cb310654cad3b1e3e9 | aa9558af859934f24717d4bab97d61004f91a736, 9c2c05629e46c1fd43931506d41c56a885a98eb4, 7b162b36de750565404cd3b98315706622c6974f, ed90eb5c68420cdfe67ec1f773324198d2ef6f50, 979175834a699ccc3c4c0b0ba60ecae0f135a587, b8afcf799b2cc92c41beebd029e53ed18960184a, 9a7b7248798123efbd5fafe58461d57c7cc718af, 7141990add3f75436f2933cb310654cad3b1e3e9 |
| Linux/Linuxgeneric | 3.13 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.