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CVE-2015-4178
The fs_pin implementation in the Linux kernel before 4.0.5 does not ensure the internal consistency of a certain list data structure,…
Medium5.5EPSS 0.37%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The fs_pin implementation in the Linux kernel before 4.0.5 does not ensure the internal consistency of a certain list data structure, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call, related to fs/fs_pin.c and include/linux/fs_pin.h.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.37% · top 69% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (7)
- [oss-security] 20150529 CVE request Linux kernel: ns: user namespaces panic (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.5 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1249849 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20150529 Re: CVE request Linux kernel: ns: user namespaces panic (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20150604 Re: Re: CVE request Linux kernel: ns: user namespaces panic (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://github.com/torvalds/linux/commit/820f9f147dcce2602eefd9b575bbbd9ea14f0953 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=820f9f147dcce2602eefd9b575bbbd9ea14f0953 (opens in a new tab)x_refsource_CONFIRMx_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)
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[](https://trackcve.app/cve/CVE-2015-4178)Record last updated .