CVE - CVE-2022-49934

CVE-ID
CVE-2022-49934	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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().
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08b URL:https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08b MISC:https://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7 URL:https://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7 MISC:https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2c URL:https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2c MISC:https://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255 URL:https://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255 MISC:https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9 URL:https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9 MISC:https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d URL:https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d MISC:https://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356b URL:https://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356b MISC:https://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1 URL:https://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1
Assigning CNA
kernel.org
Date Record Created
20250501	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250501)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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