CVE-2023-52593: wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap()
First published: Wed Mar 06 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap() Since 'ieee80211_beacon_get()' can return NULL, 'wfx_set_mfp_ap()' should check the return value before examining skb data. So convert the latter to return an appropriate error code and propagate it to return from 'wfx_start_ap()' as well. Compile tested only.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.1.77 | |
| Linux Kernel | >=6.2<6.6.16 | |
| Linux Kernel | >=6.7<6.7.4 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
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Reference Links
- https://git.kernel.org/stable/c/3739121443f5114c6bcf6d841a5124deb006b878
- https://git.kernel.org/stable/c/574dcd3126aa2eed75437137843f254b1190dd03
- https://git.kernel.org/stable/c/9ab224744a47363f74ea29c6894c405e3bcf5132
- https://git.kernel.org/stable/c/fe0a7776d4d19e613bb8dd80fe2d78ae49e8b49d
- https://launchpad.net/bugs/cve/CVE-2023-52593
- https://git.kernel.org/linus/fe0a7776d4d19e613bb8dd80fe2d78ae49e8b49d
- https://security-tracker.debian.org/tracker/CVE-2023-52593
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52593
- https://nvd.nist.gov/vuln/detail/CVE-2023-52593
- https://ubuntu.com/security/CVE-2023-52593
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