CVE-2022-49934

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Source
https://cve.org/CVERecord?id=CVE-2022-49934
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49934.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49934
Downstream
Related
Published
2025-06-18T10:54:36.161Z
Modified
2026-03-20T12:22:30.668599Z
Summary
wifi: mac80211: Fix UAF in ieee80211_scan_rx()
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: Fix UAF in ieee80211scanrx()

ieee80211scanrx() tries to access scan_req->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 scanreq.

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 cfg80211scandone().

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49934.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6ea0a69ca21bbddab5b3979c2190013b0263e749
Fixed
6eb181a64fdabf10be9e54de728876667da20255
Fixed
e0ff39448cea654843744c72c6780293c5082cb1
Fixed
78a07732fbb0934d14827d8f09b9aa6a49ee1aa9
Fixed
9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d
Fixed
4abc8c07a065ecf771827bde3c63fbbe4aa0c08b
Fixed
5d20c6f932f2758078d0454729129c894fe353e7
Fixed
c0445feb80a4d0854898118fa01073701f8d356b
Fixed
60deb9f10eec5c6a20252ed36238b55d8b614a2c

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49934.json"