CVE-2026-23367

MEDIUM EPSS 2.4%
Published Mar 25, 20263mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 25, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 15

VendorProductVersionRange
linuxlinux_kernel*≥2.6.34.1  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.167
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.77
linuxlinux_kernel*≥6.13  –  <6.18.17
linuxlinux_kernel*≥6.19  –  <6.19.7
linuxlinux_kernel2.6.34any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/129c8bb320a7cef692c78056ef8e89a2a12ba448
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a60c588d5d39ad187628f58395c776a97fd4323
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f8ceeba670610d66f77def32011f48de951d781
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f80f6a60f5d87e5de5fb2732751fce799991c24
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/703fa979badbba83d31cd011606d060bfb8b0d1d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c854758abe0b8d86f9c43dc060ff56a0ee5b31e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1d1d3c50095928624a95b67a6d7ccc3a18f2215
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e664971759a0e5570b50c6592e58a7f97d55e992
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/129c8bb320a7cef692c78056ef8e89a2a12ba448
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a60c588d5d39ad187628f58395c776a97fd4323
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f8ceeba670610d66f77def32011f48de951d781
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f80f6a60f5d87e5de5fb2732751fce799991c24
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/703fa979badbba83d31cd011606d060bfb8b0d1d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c854758abe0b8d86f9c43dc060ff56a0ee5b31e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1d1d3c50095928624a95b67a6d7ccc3a18f2215
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e664971759a0e5570b50c6592e58a7f97d55e992
    Patch