CVE-2014-4171

Status: ModifiedMedium (4.7)—

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

Version: 2.0
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C
Base score: 4.7

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.44%
Percentile among all scored CVEs: 36
Score date: 10/13/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Canonical — Ubuntu Linux Linux — Linux Kernel

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

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  "lastModified": "2026-06-17T00:09:32.550",
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