CVE-2022-49934
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49934
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49934.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49934
- Downstream
- Related
- Published
- 2025-06-18T11:15:19Z
- Modified
- 2025-08-09T19:01:27Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: Fix UAF in ieee80211scanrx()
ieee80211scanrx() tries to access scanreq->flags after a null check, but a UAF is observed when the scan is completed and _ieee80211scancompleted() executes, which then calls cfg80211scandone() leading to the freeing of scan_req.
Since scanreq is rcudereference()'d, prevent the racing in _ieee80211scancompleted() by ensuring that from mac80211's POV it is no longer accessed from an RCU read critical section before we call cfg80211scan_done().
- References
-
- https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08b
- https://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7
- https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2c
- https://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255
- https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9
- https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d
- https://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356b
- https://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1