CVE-2014-4171

Linux Kernel < 3.15.1 - Denial of Service via mmap Hole Punching

Title source: llm
STIX 2.1

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.

References (14)

Core 14
Core References
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2014-1318.html
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1111180
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/68157
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2335-1
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2334-1
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/60564
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/59777
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1030450
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2014/06/18/11
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2015-0102.html

Scores

EPSS 0.0044
EPSS Percentile 35.8%

Details

Status published
Products (2)
canonical/ubuntu_linux 12.04
linux/linux_kernel < 3.15.1
Published Jun 23, 2014
Tracked Since Feb 18, 2026