Answer in brief
CVE-2026-23367 records a Unknown severity vulnerability in wifi: radiotap: reject radiotap with unknown bits. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (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), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <6f80f6a60f5d87e5de5fb2732751fce799991c24 || >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <d1d1d3c50095928624a95b67a6d7ccc3a18f2215 || >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <703fa979badbba83d31cd011606d060bfb8b0d1d || >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <129c8bb320a7cef692c78056ef8e89a2a12ba448 || >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <2a60c588d5d39ad187628f58395c776a97fd4323 || >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <2f8ceeba670610d66f77def32011f48de951d781 || >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <e664971759a0e5570b50c6592e58a7f97d55e992 || >=33e5a2f776e331dc8a4379b6efb660d38f182d96 <c854758abe0b8d86f9c43dc060ff56a0ee5b31e0 | 6f80f6a60f5d87e5de5fb2732751fce799991c24, d1d1d3c50095928624a95b67a6d7ccc3a18f2215, 703fa979badbba83d31cd011606d060bfb8b0d1d, 129c8bb320a7cef692c78056ef8e89a2a12ba448, 2a60c588d5d39ad187628f58395c776a97fd4323, 2f8ceeba670610d66f77def32011f48de951d781, e664971759a0e5570b50c6592e58a7f97d55e992, c854758abe0b8d86f9c43dc060ff56a0ee5b31e0 |
| Linux/Linuxgeneric | 2.6.34 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Mar 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: radiotap: reject radiotap with unknown bits The radiotap parser is currently only used with the radiotap namespace (not with vendor namespaces), but if the undefined field 18 is used, the alignment/size is unknown as well. In this case, iterator->_next_ns_data isn't initialized (it's only set for skipping vendor namespaces), and syzbot points out that we later compare against this uninitialized value. Fix this by moving the rejection of unknown radiotap fields down to after the in-namespace lookup, so it will really use iterator->_next_ns_data only for vendor namespaces, even in case undefined fields are present.
Quoted source text, attributed separately from HOL analysis.