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usb: iowarrior: don't trust report_size for buffer size
authorKees Cook <kees.cook@canonical.com>
Mon, 11 Oct 2010 18:28:16 +0000 (11:28 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 22 Oct 2010 17:22:08 +0000 (10:22 -0700)
commit3ed780117dbe5acb64280d218f0347f238dafed0
tree982370602556fe88c5c110529ab9d426a5b72254tree | snapshot
parentcfb8da8f69b81d367b766888e83ec0483a31bf01commit | diff
usb: iowarrior: don't trust report_size for buffer size

If the iowarrior devices in this case statement support more than 8 bytes
per report, it is possible to write past the end of a kernel heap allocation.
This will probably never be possible, but change the allocation to be more
defensive anyway.

Signed-off-by: Kees Cook <kees.cook@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/misc/iowarrior.c diff | blob | history
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