CVS commit: [netbsd-7] src/sys/dev/usb

["Soren Jacobsen" <snj%netbsd.org@localhost>]

Module Name:    src
Committed By:   snj
Date:           Wed Jan  3 21:18:03 UTC 2018

Modified Files:
        src/sys/dev/usb [netbsd-7]: usb_subr.c

Log Message:
Pull up following revision(s) (requested by khorben in ticket #1541):
        sys/dev/usb/usb_subr.c: revision 1.222
Be more defensive towards malicious USB devices
This avoids potential panics due to 0-sized memory allocation attempts,
which could be triggered by malicious USB devices.
Tested on NetBSD/amd64 with a Sony Xperia X (SailfishOS).
Based on an initial patch by Nick Hudson <skrll%NetBSD.org@localhost>, thanks!
Fixes PR kern/52383.


To generate a diff of this commit:
cvs rdiff -u -r1.196.4.3 -r1.196.4.4 src/sys/dev/usb/usb_subr.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.