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.
Metrics
CVSS 2.0 4.7/10
AV:L/AC:M/Au:N/C:N/I:N/A:CAffected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.htmlMailing List, Third Party Advisory
- http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2Mailing List, Third Party Advisory
- http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patchThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-1318.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0102.htmlThird Party Advisory
- http://secunia.com/advisories/59777Third Party Advisory
- http://secunia.com/advisories/60564Third Party Advisory
- http://www.openwall.com/lists/oss-security/2014/06/18/11Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/68157Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1030450Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2334-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2335-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1111180Issue Tracking, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.htmlMailing List, Third Party Advisory
- http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2Mailing List, Third Party Advisory
- http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patchThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-1318.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0102.htmlThird Party Advisory
- http://secunia.com/advisories/59777Third Party Advisory
- http://secunia.com/advisories/60564Third Party Advisory
- http://www.openwall.com/lists/oss-security/2014/06/18/11Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/68157Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1030450Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2334-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2335-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1111180Issue Tracking, Third Party Advisory
Timeline
- Published
- Jun 23, 2014
- Last modified
- Jun 17, 2026
- NVD status
- Modified