SUSE CVE-2025-21893

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...

DEBIAN-CVE-2025-21893

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...

CVE-2025-21893

CVE-2025-21893 concerns a use-after-free in the Linux kernel key handling. The issue arises when the key’s usage reaches 0 and the garbage collector may touch the key after it could have been freed. The fix changes the reclamation logic from inspecting the key’s refcount in the garbage collector ...