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CVE-2016-6197
fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry…
Medium5.5EPSS 0.51%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.
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)
- 0.51% · top 57% 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
Affected products
n/a
- affected n/a
References (14)
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3070-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1355650 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:1847 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 91709 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2016:1875 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3070-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 1036273 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-3070-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3070-4 (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)
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[](https://trackcve.app/cve/CVE-2016-6197)Record last updated .