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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49934 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix UAF in ieee80211_scan_rx() ieee80211_scan_rx() tries to access scan_req->flags after a null check, but a UAF is observed when the scan is completed and __ieee80211_scan_completed() executes, which then calls cfg80211_scan_done() leading to the freeing of scan_req. Since scan_req is rcu_dereference()'d, prevent the racing in __ieee80211_scan_completed() by ensuring that from mac80211's POV it is no longer accessed from an RCU read critical section before we call cfg80211_scan_done().


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08b kernel.org Patch 
https://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7 kernel.org Patch 
https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2c kernel.org Patch 
https://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255 kernel.org Patch 
https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9 kernel.org Patch 
https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d kernel.org Patch 
https://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356b kernel.org Patch 
https://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49934
NVD Published Date:
06/18/2025
NVD Last Modified:
11/14/2025
Source:
kernel.org