CVE-2026-43458

A flaw was found in the Linux kernel, specifically within the caif_serial line discipline. This vulnerability, a use-after-free, occurs due to improper management of the tty->link reference during the ldisc_open and ser_release functions. A local attacker could exploit this by triggering the caif_serial transmit path, which may lead to a system crash, resulting in a Denial of Service (DoS), or potentially allow for privilege escalation.