CVE-2022-49934
wifi: mac80211: Fix UAF in ieee80211_scan_rx()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 18, 2025 |
| Last Updated | May 11, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
6ea0a69ca21bbddab5b3979c2190013b0263e749 < 6eb181a64fdabf10be9e54de728876667da20255 6ea0a69ca21bbddab5b3979c2190013b0263e749 < e0ff39448cea654843744c72c6780293c5082cb1 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 78a07732fbb0934d14827d8f09b9aa6a49ee1aa9 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 4abc8c07a065ecf771827bde3c63fbbe4aa0c08b 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 5d20c6f932f2758078d0454729129c894fe353e7 6ea0a69ca21bbddab5b3979c2190013b0263e749 < c0445feb80a4d0854898118fa01073701f8d356b 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 60deb9f10eec5c6a20252ed36238b55d8b614a2c
Linux / Linux
3.19
References
git.kernel.org: https://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255 git.kernel.org: https://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1 git.kernel.org: https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9 git.kernel.org: https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d git.kernel.org: https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08b git.kernel.org: https://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7 git.kernel.org: https://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356b git.kernel.org: https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2c