CVE-2025-21893 keys: Fix UAF in key_put()

In the Linux kernel, the following vulnerability has been resolved: keys: Fix UAF in keyput Once a key's reference count has been reduced to 0, the garbage collector thread may destroy it at any time and so keyput is not allowed to touch the key after that point. The most keyput is normally allow...

kernel: wifi: mac80211: fix potential key use-after-free

A use-after-free flaw was found in the Linux kernel’s IEEE 802.11 networking stack implementation functionality, used by Wifi, in how a user triggers the error path of the ieee80211gtkrekeyadd function. This flaw allows a local user to crash the system...