Security Advisory

CVE-2014-4171

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2014-06-23 10:00:00

Last updated 2024-08-06 11:04:28

Assigner mitre

State PUBLISHED

Description

mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.

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