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MFC r341484
authorGordon Tetlow <gordon@FreeBSD.org>
Tue, 4 Dec 2018 18:31:21 +0000 (18:31 +0000)
committerGordon Tetlow <gordon@FreeBSD.org>
Tue, 4 Dec 2018 18:31:21 +0000 (18:31 +0000)
commit5ddbe733d3809bd5bfc606f4934f2f4dbd2b090d
tree9eff249816d6b2425c9e963cd8433bdc33745b55tree | snapshot
parentb6186e4a0e13f745e6f0518b9cdeed71e5c379b3commit | diff
MFC r341484

Always treat firmware request and response sizes as unsigned.

This fixes an incomplete bounds check on the guest-supplied request
size where a very large request size could be interpreted as a negative
value and not be caught by the bounds check.

Submitted by: jhb
Reported by:  Reno Robert
Approved by:  so
Security:     FreeBSD-SA-18:14.bhyve
Security:     CVE-2018-17160
usr.sbin/bhyve/fwctl.c diff | blob | history
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