cve 2024 43893

CVE-2024-43893 is a Linux kernel vulnerability in the serial core subsystem that can be triggered by a malformed TIOCSSERIAL ioctl, causing a divide-by-zero error and leading to a kernel oops that takes the host offline. The bug has been fixed upstream and backported into stable trees. Administrators and embedded device operators should treat this as an availability-first risk and apply patches or mitigations promptly. The vulnerability affects systems using the Linux kernel's serial subsystem, which is common in servers and embedded devices. This tag covers discussions about the vulnerability, its impact, and remediation steps for affected systems.