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CVE-2014-5045

Published: Aug 1, 2014

Modified: Aug 6, 2024

PUBLISHED

Description

The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.

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

References

[oss-security] 20140723 Re: CVE request: kernel: vfs: refcount issues during unmount on symlink

mailing-list

x_refsource_MLIST

https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212

x_refsource_CONFIRM

vdb-entry

x_refsource_BID

vendor-advisory

x_refsource_REDHAT

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8

x_refsource_CONFIRM

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=295dc39d941dc2ae53d5c170365af4c9d5c16212

x_refsource_CONFIRM

third-party-advisory

x_refsource_SECUNIA

https://bugzilla.redhat.com/show_bug.cgi?id=1122472

x_refsource_CONFIRM

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