Race condition in ldsem_cmpxchg function in Linux kernel before 3.13-rc4-next-20131218 allows local users to cause denial of service

CVE-2015-4170 · MEDIUM Severity

AV:L/AC:M/AU:N/C:N/I:N/A:C

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.

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