CVS commit: src/sys/dev/usb

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sun Apr 17 13:17:30 UTC 2022

Modified Files:
        src/sys/dev/usb: uvideo.c

Log Message:
uvideo(4): Parse descriptors more robustly.

Validate lengths and types before barging ahead.

Not sure exactly which missing validation syzbot tripped on here, but
I'm pretty sure I caught all the cases.

Reported-by: syzbot+60f0a25c077b67547f57%syzkaller.appspotmail.com@localhost


To generate a diff of this commit:
cvs rdiff -u -r1.77 -r1.78 src/sys/dev/usb/uvideo.c

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