{"cve":"CVE-2014-4171","nvd":{"published":"2014-06-23T11:21:20.403","modified":"2026-06-17T00:09:32.550","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html","http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html","http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2","http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch","http://rhn.redhat.com/errata/RHSA-2014-1318.html"],"products":["canonical:ubuntu_linux","linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T20:33:06.232976534+00:00"},"epss":{"cve":"CVE-2014-4171","score":0.0044,"percentile":0.38266,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}