CVE-2026-58093

The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring the tty lock, the handler did not revalidate the state of the terminal, and could proceed to link a terminal that was concurrently being destroyed to the calling process' session. An...

CVE-2026-58093

CVE-2026-58093 is a use-after-free vulnerability in the FreeBSD kernel tty subsystem , specifically in the TIOCSCTTY ioctl handler. The handler drops the tty lock to acquire the process tree lock but fails to revalidate the terminal's state upon reacquiring the tty lock, allowing it to link a con...

CVE-2026-58093 Kernel use-after-free via tty ioctls

The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring the tty lock, the handler did not revalidate the state of the terminal, and could proceed to link a terminal that was concurrently being destroyed to the calling process' session. An...

EUVD-2026-66250

The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring the tty lock, the handler did not revalidate the state of the terminal, and could proceed to link a terminal that was concurrently being destroyed to the calling process' session. An...

FreeBSD-SA-26:62.tty

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:62.tty Security Advisory The FreeBSD Project Topic: Kernel use-after-free via tty ioctls Category: core Module: tty Announced: 2026-08-25 Credits: tsune of...

EUVD-2002-1473

Malware in sbrugna...

CVE-2002-1490

CVE-2002-1490 affects NetBSD 1.4–1.6 beta. The vulnerability is triggered by a sequence of TIOCSCTTY ioctl calls that overrun a structure counter, resetting it to zero and freeing memory still in use, leading to a local denial of service via kernel panic. The connected documents confirm the issue...

NetBSD Security Advisory 2002-007: Repeated TIOCSCTTY ioctl can corrupt session hold counts

-----BEGIN PGP SIGNED MESSAGE----- NetBSD Security Advisory 2002-007 ================================= Topic: Repeated TIOCSCTTY ioctl can corrupt session hold counts Version: NetBSD-current: source prior to July 21, 2002 NetBSD-1.6 beta: source prior to July 23, 2002 NetBSD-1.5.: source prior to...