CVE-2026-23367
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
19cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 9 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.34.1,<5.10.253
- cpe:2.3:o:linux:linux_kernel:2.6.34:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
- (no CPE)
- osv-coords9 versionspkg:linux/kernelpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_84&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
>= 2.6.34, < 6.1.167+ 8 more
- (no CPE)range: >= 2.6.34, < 6.1.167
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 1-8.7.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/129c8bb320a7cef692c78056ef8e89a2a12ba448nvdPatch
- git.kernel.org/stable/c/2a60c588d5d39ad187628f58395c776a97fd4323nvdPatch
- git.kernel.org/stable/c/2f8ceeba670610d66f77def32011f48de951d781nvdPatch
- git.kernel.org/stable/c/6f80f6a60f5d87e5de5fb2732751fce799991c24nvdPatch
- git.kernel.org/stable/c/703fa979badbba83d31cd011606d060bfb8b0d1dnvdPatch
- git.kernel.org/stable/c/c854758abe0b8d86f9c43dc060ff56a0ee5b31e0nvdPatch
- git.kernel.org/stable/c/d1d1d3c50095928624a95b67a6d7ccc3a18f2215nvdPatch
- git.kernel.org/stable/c/e664971759a0e5570b50c6592e58a7f97d55e992nvdPatch
News mentions
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