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CVE-2015-4177

Published: May 2, 2016

Modified: Aug 6, 2024

PUBLISHED

Description

The collect_mounts function in fs/namespace.c in the Linux kernel before 4.0.5 does not properly consider that it may execute after a path has been unmounted, 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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cd4a40174b71acd021877341684d8bb1dc8ea4ae

x_refsource_CONFIRM

[oss-security] 20150529 CVE request Linux kernel: ns: user namespaces panic

mailing-list

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https://bugzilla.redhat.com/show_bug.cgi?id=1248486

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https://github.com/torvalds/linux/commit/cd4a40174b71acd021877341684d8bb1dc8ea4ae

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http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.5

x_refsource_CONFIRM

[oss-security] 20150529 Re: CVE request Linux kernel: ns: user namespaces panic

mailing-list

x_refsource_MLIST

[oss-security] 20150604 Re: Re: CVE request Linux kernel: ns: user namespaces panic

mailing-list

x_refsource_MLIST

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