CVE-2014-4171

N/A
Published: June 23, 2014 at 10:00 AM UTC
Updated: June 17, 2026 at 12:09 AM UTC
2 products affected across 2 vendorsLinux KernelUbuntu Linux

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Severity
N/A
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (14)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
Mailing Listx_refsource_MLISTThird Party Advisory
http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2
Vendor Advisoryx_refsource_REDHATThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1318.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0102.html
Third Party Advisoryx_refsource_SECUNIA
http://secunia.com/advisories/59777
Third Party Advisoryx_refsource_SECUNIA
http://secunia.com/advisories/60564

CVSS

Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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