CVE-2015-5706

Use-after-free vulnerability in the path_openat function in fs/namei.c in the Linux kernel 3.x and 4.x before 4.0.4 allows local users to cause a denial of service or possibly have unspecified other impact via O_TMPFILE filesystem operations that leverage a duplicate cleanup operation.

• CWE-416

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0Patch, Vendor Advisory
• http://twitter.com/grsecurity/statuses/597127122910490624Broken Link
• http://www.debian.org/security/2015/dsa-3329Third Party Advisory
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4Release Notes, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2015/08/01/5Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/76142Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-2680-1Third Party Advisory
• http://www.ubuntu.com/usn/USN-2681-1Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1250047Issue Tracking, Patch, Third Party Advisory
• https://github.com/torvalds/linux/commit/f15133df088ecadd141ea1907f2c96df67c729f0Patch, Third Party Advisory
• https://source.android.com/security/bulletin/2017-01-01.htmlPatch, Third Party Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0Patch, Vendor Advisory
• http://twitter.com/grsecurity/statuses/597127122910490624Broken Link
• http://www.debian.org/security/2015/dsa-3329Third Party Advisory
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4Release Notes, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2015/08/01/5Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/76142Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-2680-1Third Party Advisory
• http://www.ubuntu.com/usn/USN-2681-1Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1250047Issue Tracking, Patch, Third Party Advisory
• https://github.com/torvalds/linux/commit/f15133df088ecadd141ea1907f2c96df67c729f0Patch, Third Party Advisory
• https://source.android.com/security/bulletin/2017-01-01.htmlPatch, Third Party Advisory

Published

Aug 31, 2015

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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