CVE-2024-43841
wifi: virt_wifi: avoid reporting connection success with wrong SSID
- State
- Published
- Severity
- Not scored
- Published
- Aug 17, 2024
- Updated
- May 11, 2026
- Reserved
- Aug 17, 2024
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: virt_wifi: avoid reporting connection success with wrong SSID
When user issues a connection with a different SSID than the one virt_wifi has advertised, the __cfg80211_connect_result() will trigger the warning: WARN_ON(bss_not_found).
The issue is because the connection code in virt_wifi does not check the SSID from user space (it only checks the BSSID), and virt_wifi will call cfg80211_connect_result() with WLAN_STATUS_SUCCESS even if the SSID is different from the one virt_wifi has advertised. Eventually cfg80211 won't be able to find the cfg80211_bss and generate the warning.
Fixed it by checking the SSID (from user space) in the connection code.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4d
- https://git.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414
- https://git.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942
- https://git.kernel.org/stable/c/d3cc85a10abc8eae48988336cdd3689ab92581b3
- https://git.kernel.org/stable/c/36e92b5edc8e0daa18e9325674313802ce3fbc29
- https://git.kernel.org/stable/c/416d3c1538df005195721a200b0371d39636e05d
- https://git.kernel.org/stable/c/b5d14b0c6716fad7f0c94ac6e1d6f60a49f985c7
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
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