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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-52593
• 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