Race condition

2023-12-2120:15:00

PRIOn knowledge base

www.prio-n.com

linux kernel

gsm multiplexor

race condition

use-after-free

privilege escalation

nvd

7.2 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

10.2%

JSON

A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.

CPENameOperatorVersion
fedoraeq39
linux_kerneleq6.5 rc1
linux_kernellt6.5
linux_kerneleq6.5 rc2
linux_kerneleq6.5 rc3
linux_kerneleq6.5 rc4
linux_kerneleq6.5 rc5
linux_kerneleq6.5 rc6
enterprise_linuxeq8.0
enterprise_linuxeq9.0

Name	Operator	Version
fedora	eq	39
linux_kernel	eq	6.5 rc1
linux_kernel	lt	6.5
linux_kernel	eq	6.5 rc2
linux_kernel	eq	6.5 rc3
linux_kernel	eq	6.5 rc4
linux_kernel	eq	6.5 rc5
linux_kernel	eq	6.5 rc6
enterprise_linux	eq	8.0
enterprise_linux	eq	9.0