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[CVE-2016-6136] Double-Fetch Vulnerability in Linux-4.6/kernel/auditsc.c
Jul 04 2016 03:05PM
wpengfeinudt gmail com
I found this double-fetch vulnerability when I was doing my research on double-fetch issue analysis, and I?d like to make an announcement here.
This was found in Linux kernel file Linux-4.6/kernel/auditsc.c, and crafted user space data change under race condition will make control strings processed as none-control strings, which could mislead the audit subsystem of Linux kernel.
1. Affected Versions: Linux Kernel 4.6 and earlier versions.
2. Detailed description in my report to Kernel Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=120681
3. Patch: This has been confirmed by the maintainers and patched in the new version: https://github.com/linux-audit/audit-kernel/issues/18
4. CVE: The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2016-6136 to this issue.
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