cve/2015/CVE-2015-4170.md

CVE-2015-4170

Description

Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.

POC

Reference

• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
• https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz

Github

No PoCs found on GitHub currently.