CVE-2014-5045

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.

• CWE-59

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=295dc39d941dc2ae53d5c170365af4c9d5c16212
• http://rhn.redhat.com/errata/RHSA-2015-0062.htmlThird Party Advisory
• http://secunia.com/advisories/60353Third Party Advisory
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8Patch, Third Party Advisory, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2014/07/24/2Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/68862Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=1122472Issue Tracking, Third Party Advisory
• https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212Exploit, Patch, Third Party Advisory
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=295dc39d941dc2ae53d5c170365af4c9d5c16212
• http://rhn.redhat.com/errata/RHSA-2015-0062.htmlThird Party Advisory
• http://secunia.com/advisories/60353Third Party Advisory
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8Patch, Third Party Advisory, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2014/07/24/2Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/68862Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=1122472Issue Tracking, Third Party Advisory
• https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212Exploit, Patch, Third Party Advisory

Published

Aug 1, 2014

Last Modified

Jun 17, 2026

Status

Modified

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