CVE-2026-58087

CVE-2026-58087 is a heap out-of-bounds access in the GETALL and SETALL commands of FreeBSD's semctl(2) system call. The root cause is a sequence-number wrap after 0x8000 create/destroy cycles: an unprivileged local user can rapidly destroy and recreate semaphore sets at the same index, causing a ...

CVE-2026-58087 Heap out-of-bounds access in semctl(2)

The GETALL and SETALL commands in semctl2 recorded the number of semaphores in the target set, dropped the lock protecting the set, allocated a buffer sized for that count, and reacquired the lock. A sequence-number check was used to verify that the set had not been replaced in the interim, but t...

PT-2026-78319

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description The GETALL and SETALL commands in the semctl function contain a flaw in how they handle semaphore sets. The process records the number of semaphores, releases th...

UBUNTU-CVE-2026-23440

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix race condition during IPSec ESN update In IPSec full offload mode, the device reports an ESN Extended Sequence Number wrap event to the driver. The driver validates this event by querying the IPSec ASO and checking...