fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of…

Description

fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.

Scores

EPSS (exploitation in 30 days)

0.56% · top 53% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

• n/a
• CWE-399 (opens in a new tab)All about CWE-399 and its CVEs

Affected products

• n/a

  • affected n/a

References (6)

• [oss-security] 20160823 cve request: overlayfs: Fix dentry reference leak (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1367814 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 92611 (opens in a new tab)vdb-entryx_refsource_BIDx_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-2015-8953](https://trackcve.app/badge/CVE-2015-8953.svg)](https://trackcve.app/cve/CVE-2015-8953)

Record last updated 6 Aug 2024, 08:36 UTC.