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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2014-06-23T10:00:00

Updated: 2024-08-06T11:04:28.804Z

Reserved: 2014-06-17T00:00:00

Link: CVE-2014-4171

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2014-06-23T11:21:20.403

Modified: 2018-12-18T14:38:03.940

Link: CVE-2014-4171

cve-icon Redhat

Severity : Moderate

Publid Date: 2014-06-17T00:00:00Z

Links: CVE-2014-4171 - Bugzilla