Medium severity5.5NVD Advisory· Published May 2, 2016· Updated Jun 17, 2026
CVE-2015-4178
CVE-2015-4178
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.
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Affected products
2Patches
Vulnerability mechanics
References
7- openwall.com/lists/oss-security/2015/05/29/5nvdPatch
- github.com/torvalds/linux/commit/820f9f147dcce2602eefd9b575bbbd9ea14f0953nvdPatchVendor Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.5nvdVendor Advisory
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvd
- openwall.com/lists/oss-security/2015/05/29/10nvd
- www.openwall.com/lists/oss-security/2015/06/04/5nvd
- bugzilla.redhat.com/show_bug.cginvd
News mentions
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