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CVE-2015-2925

MediumPublished

The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local...

Published: Nov 16, 2015
Updated: Aug 6, 2024
Assigning CNA: mitre
Evidence observed: Aug 5, 2026

Primary CVSS

6.9/ 10Medium

nvd · CVSS 2.0

AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS probability estimate

1.2%

Low · next 30 days

Percentile: 67.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack."

Sources

docker_cve-2015-2925PoC
Docker + CVE-2015-2925 = escaping from --volume

Responsible use

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