Answer in brief
CVE-2026-72227 records a Unknown severity vulnerability in batman-adv: mcast: avoid OOB read of num_dests header. 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.
A CVSS score is not reported in the current record. 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 | >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <80f62893d135f415e7a374dd47b468ec298f7aed || >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <d2b657c9653fcebca828a2ead13f444e0da68817 || >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <7d1a877670bc2e901241073f022ca8d1b2f85f1c || >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <38eaed28e250895d56f4b7989bd65479a511c5c3 | 80f62893d135f415e7a374dd47b468ec298f7aed, d2b657c9653fcebca828a2ead13f444e0da68817, 7d1a877670bc2e901241073f022ca8d1b2f85f1c, 38eaed28e250895d56f4b7989bd65479a511c5c3 |
| Linux/Linuxgeneric | 6.8 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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: mcast: avoid OOB read of num_dests header Before the access to struct batadv_tvlv_mcast_tracker's num_dests, it is attempted to check whether enough space is actually in the network header. But instead of using offsetofend() to check for the whole size (2) which must be accessible, offsetof() of is called. The latter is always returning 0. The comparison with the network header length will always return that enough data is available - even when only 1 or 0 bytes are accessible. Instead of using offsetofend(), use the more common check for the whole header.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72227 records a Unknown severity vulnerability in batman-adv: mcast: avoid OOB read of num_dests header. 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.
A CVSS score is not reported in the current record. 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 | >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <80f62893d135f415e7a374dd47b468ec298f7aed || >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <d2b657c9653fcebca828a2ead13f444e0da68817 || >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <7d1a877670bc2e901241073f022ca8d1b2f85f1c || >=07afe1ba288c04280622fa002ed385f1ac0b6fe6 <38eaed28e250895d56f4b7989bd65479a511c5c3 | 80f62893d135f415e7a374dd47b468ec298f7aed, d2b657c9653fcebca828a2ead13f444e0da68817, 7d1a877670bc2e901241073f022ca8d1b2f85f1c, 38eaed28e250895d56f4b7989bd65479a511c5c3 |
| Linux/Linuxgeneric | 6.8 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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: mcast: avoid OOB read of num_dests header Before the access to struct batadv_tvlv_mcast_tracker's num_dests, it is attempted to check whether enough space is actually in the network header. But instead of using offsetofend() to check for the whole size (2) which must be accessible, offsetof() of is called. The latter is always returning 0. The comparison with the network header length will always return that enough data is available - even when only 1 or 0 bytes are accessible. Instead of using offsetofend(), use the more common check for the whole header.
Quoted source text, attributed separately from HOL analysis.