CVE-2026-98752
kernel: tty: port: fix tty_port_tty_vhangup() race
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 23, 2026
Description
A flaw was found in the Linux kernel's TTY (terminal) subsystem. This vulnerability allows a local user to cause a Denial of Service (DoS) or potentially execute arbitrary code. A race condition during port disconnect and hangup routines allows the kernel to release resources while they are still being accessed, resulting in memory corruption and system crashes.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-366 · Race Condition within a Thread