CVE-2015-2925

medium

Published 2015-11-16 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

6.9

Description

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."

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

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OS impact

Linux kernel Affected 1 release

Version	Status	Fixed in
—	Affected	`3.2.72`

Ubuntu Affected 3 releases

Version	Status	Fixed in
15.04	Affected	—
14.04	Affected	—
12.04	Affected	—

Debian Mixed 7 releases

Version	Status	Fixed in
trixie	Fixed	`4.2.1-1`
sid	Fixed	`4.2.1-1`
forky	Fixed	`4.2.1-1`
bullseye	Fixed	`4.2.1-1`
bookworm	Fixed	`4.2.1-1`
8.0	Affected	—
7.0	Affected	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.