[CVE-2016-6480] Double-Fetch Vulnerability in Linux-4.5/drivers/scsi/aacraid/commctrl.c

[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-4.5/drivers/scsi/aacraid/commctrl.c, and crafted user space data change under 
race condition will lead to over-boundary access in kernel structure or local buffer, and serious consequence might be 
caused.
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1. Affected Versions: Linux Kernel 4.5 and earlier versions.

2. Detailed description in my report to Kernel Bugzilla:  https://bugzilla.kernel.org/show_bug.cgi?id=116751

3. CVE: The Common Vulnerabilities and Exposures (CVE) project has assigned the entry CVE-2016-6480 to this issue. 

Even though some maintainers have confirmed this issue on the mailing list, this problem has not yet been patched since 
my first report three months ago. I hope this could be patched as soon as possible. 

Kind regards
Pengfei Wang