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CVE-2026-23367 Detail

Description

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/129c8bb320a7cef692c78056ef8e89a2a12ba448 kernel.org
https://git.kernel.org/stable/c/2a60c588d5d39ad187628f58395c776a97fd4323 kernel.org
https://git.kernel.org/stable/c/2f8ceeba670610d66f77def32011f48de951d781 kernel.org
https://git.kernel.org/stable/c/703fa979badbba83d31cd011606d060bfb8b0d1d kernel.org
https://git.kernel.org/stable/c/c854758abe0b8d86f9c43dc060ff56a0ee5b31e0 kernel.org
https://git.kernel.org/stable/c/e664971759a0e5570b50c6592e58a7f97d55e992 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23367
NVD Published Date:
03/25/2026
NVD Last Modified:
03/25/2026
Source:
kernel.org