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,…

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."

Scores

EPSS (exploitation in 30 days)

1.2% · top 32% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (34)

• SUSE-SU-2015:2292 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• RHSA-2015:2636 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• DSA-3372 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• [containers] 20150403 [PATCH review 17/19] vfs: Test for and handle paths that are unreachable from their mnt_root (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• RHSA-2016:0068 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://pkgs.fedoraproject.org/cgit/kernel.git/commit/?h=f22&id=520b64102de2f184036024b2a53de2b67463bd78 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU-2016:0337 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-2792-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 73926 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• SUSE-SU-2016:0434 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• DSA-3364 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• USN-2794-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• USN-2799-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• USN-2795-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU-2015:2194 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• SUSE-SU-2016:0380 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• SUSE-SU-2016:0335 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• [containers] 20150403 [PATCH review 19/19] vfs: Do not allow escaping from bind mounts. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• SUSE-SU-2016:0383 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cde93be45a8a90d8c264c776fab63487b5038a65 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU-2016:0386 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• [oss-security] 20150404 Re: Linux namespaces: It is possible to escape from bind mounts (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.4 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1209367 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=397d425dc26da728396e66d392d5dcb8dac30c37 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU-2016:0384 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://github.com/torvalds/linux/commit/cde93be45a8a90d8c264c776fab63487b5038a65 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1209373 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://github.com/torvalds/linux/commit/397d425dc26da728396e66d392d5dcb8dac30c37 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU-2016:0387 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• SUSE-SU-2016:0381 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-2798-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2015-2925](https://trackcve.app/badge/CVE-2015-2925.svg)](https://trackcve.app/cve/CVE-2015-2925)

Record last updated 6 Aug 2024, 05:32 UTC.