CVE-2022-49934
published 2025-06-18CVE-2022-49934: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix UAF in ieee80211_scan_rx() ieee80211_scan_rx() tries to access…
PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.16%
5.5th percentile
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().
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.19.11-1 (bookworm) | linux 5.19.11-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 6eb181a64fdabf10be9e54de728876667da20255 | 6eb181a64fdabf10be9e54de728876667da20255 |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < e0ff39448cea654843744c72c6780293c5082cb1 | e0ff39448cea654843744c72c6780293c5082cb1 |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 78a07732fbb0934d14827d8f09b9aa6a49ee1aa9 | 78a07732fbb0934d14827d8f09b9aa6a49ee1aa9 |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d | 9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 4abc8c07a065ecf771827bde3c63fbbe4aa0c08b | 4abc8c07a065ecf771827bde3c63fbbe4aa0c08b |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 5d20c6f932f2758078d0454729129c894fe353e7 | 5d20c6f932f2758078d0454729129c894fe353e7 |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < c0445feb80a4d0854898118fa01073701f8d356b | c0445feb80a4d0854898118fa01073701f8d356b |
| linux | linux | >= 6ea0a69ca21bbddab5b3979c2190013b0263e749 < 60deb9f10eec5c6a20252ed36238b55d8b614a2c | 60deb9f10eec5c6a20252ed36238b55d8b614a2c |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.148-1 | 5.10.148-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 3.19 < 4.9.330 | 4.9.330 |
| linux | linux_kernel | >= 4.10 < 4.14.295 | 4.14.295 |
| linux | linux_kernel | >= 4.15 < 4.19.260 | 4.19.260 |
| linux | linux_kernel | >= 4.20 < 5.4.215 | 5.4.215 |
| linux | linux_kernel | >= 5.11 < 5.15.66 | 5.15.66 |
| linux | linux_kernel | >= 5.16 < 5.19.8 | 5.19.8 |
| linux | linux_kernel | >= 5.5 < 5.10.142 | 5.10.142 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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GHSA
GHSA-w75g-vp3j-wh29: In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: Fix UAF in ieee80211_scan_rx()
ieee80211_scan_rx() tries to acce
ghsa_unreviewed·2025-06-18
CVE-2022-49934 [HIGH] CWE-416 GHSA-w75g-vp3j-wh29: In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: Fix UAF in ieee80211_scan_rx()
ieee80211_scan_rx() tries to acce
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().
OSV
CVE-2022-49934: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix UAF in ieee80211_scan_rx() ieee80211_scan_rx() tries to access
osv·2025-06-18·CVSS 7.8
CVE-2022-49934 [HIGH] CVE-2022-49934: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix UAF in ieee80211_scan_rx() ieee80211_scan_rx() tries to access
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().
Red Hat
kernel: wifi: mac80211: Fix UAF in ieee80211_scan_rx()
vendor_redhat·2025-06-18·CVSS 7.8
CVE-2022-49934 [HIGH] CWE-825 kernel: wifi: mac80211: Fix UAF in ieee80211_scan_rx()
kernel: wifi: mac80211: Fix UAF in ieee80211_scan_rx()
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().
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise
Debian
CVE-2022-49934: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: mac80...
vendor_debian·2022·CVSS 7.8
CVE-2022-49934 [HIGH] CVE-2022-49934: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: mac80...
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().
Scope: local
bookworm: resolved (fixed in 5.19.11-1)
bullseye: resolved (fixed in 5.10.148-1)
forky: resolved (fixed in 5.19.11-1)
sid: resolved (fixed in 5.19.11-1)
trixie: resolved (fixed in 5.19.11-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08bhttps://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2chttps://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2dhttps://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356bhttps://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1
2025-06-18
Published