The vulnerability of the dup_userfaultfd_complete() function in the fs/userfaultfd.c module of the Linux kernel file system allows a attacker to cause a service failure.

The vulnerability of the dupuserfaultfdcomplete function in the fs/userfaultfd.c module of the Linux file system is related to synchronization errors when using shared resources “Race Conditions”. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2024-50220: Time-of-check Time-of-use (TOCTOU) Race Condition

In the Linux kernel, the following vulnerability has been resolved: fork: do not invoke uffd on fork if error occurs Patch series "fork: do not expose incomplete mm on fork". During fork we may place the virtual memory address space into an inconsistent state before the fork operation is complete...