The vulnerability of the _umtx_op system call in FreeBSD allows a hacker to execute arbitrary code.

The vulnerability of the umtxop system call in FreeBSD systems is related to the use of memory after it is freed. Exploiting this vulnerability allows a remote attacker to execute arbitrary code using the UMTXOPSHM operation...

CVE-2024-43102 umtx Kernel panic or Use-After-Free

Concurrent removals of certain anonymous shared memory mappings by using the UMTXSHMDESTROY sub-request of UMTXOPSHM can lead to decreasing the reference count of the object representing the mapping too many times, causing it to be freed too early. A malicious code exercizing the UMTXSHMDESTROY...

FreeBSD -- umtx Kernel panic or Use-After-Free

Problem Description: Concurrent removals of such a mapping by using the UMTXSHMDESTROY sub-request of UMTXOPSHM can lead to decreasing the reference count of the object representing the mapping too many times, causing it to be freed too early. Impact: A malicious code exercizing the UMTXSHMDESTRO...