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.
Metrics
CVSS 2.0 6.2/10
AV:L/AC:H/Au:N/C:C/I:C/A:CWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- 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
Timeline
- Published
- Aug 1, 2014
- Last modified
- Jun 17, 2026
- NVD status
- Modified