In the Linux kernel, the following vulnerability has been resolved:

wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi()

The simple_write_to_buffer() function will succeed if even a single
byte is initialized. However, we need to initialize the whole buffer
to prevent information leaks. Just use memdup_user().

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-50169
• https://git.kernel.org/stable/c/05ceda14ef7c73104e709c414c3680d8a59f51d4
• https://git.kernel.org/stable/c/074e865b37da55aa87baa16d68b96896f85f8adb
• https://git.kernel.org/stable/c/4615458db7793fadc6d546ac3564b36819e77a22
• https://git.kernel.org/stable/c/60c9983425167ec5073c628d83a6875760d18059
• https://git.kernel.org/stable/c/67470920cd3f3cb38699b1ad23234f96bead4d21
• https://git.kernel.org/stable/c/789edc1af9c1a2293956e8534bfef3d18d629de9
• https://git.kernel.org/stable/c/7a4836560a6198d245d5732e26f94898b12eb760
• https://git.kernel.org/stable/c/c1216e699a1ce83ea005510844bd7508d34c6cef