Author: pfg
Date: Wed May 24 14:24:47 2017
New Revision: 318788
URL: https://svnweb.freebsd.org/changeset/base/318788
Log:
bhyvegc_resize: make use of reallocarray(3) for bounds-checking.
Also add __FBSDID.
Reviewed by: grehan
This file lacks a license(!) so for this change the following declaration
applies:
To the greatest extent permitted by, but not in contravention of,
applicable law, Affirmer hereby overtly, fully, permanently, irrevocably
and unconditionally waives, abandons, and surrenders all of Affirmer's
Copyright and Related Rights and associated claims and causes of action,
whether now known or unknown (including existing as well as future claims
and causes of action).
Modified:
head/usr.sbin/bhyve/bhyvegc.c
Modified: head/usr.sbin/bhyve/bhyvegc.c
==============================================================================
--- head/usr.sbin/bhyve/bhyvegc.c Wed May 24 14:22:22 2017
(r318787)
+++ head/usr.sbin/bhyve/bhyvegc.c Wed May 24 14:24:47 2017
(r318788)
@@ -1,4 +1,5 @@
#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
#include <sys/types.h>
@@ -56,9 +57,11 @@ bhyvegc_resize(struct bhyvegc *gc, int w
gc_image->width = width;
gc_image->height = height;
if (!gc->raw) {
- gc_image->data = realloc(gc_image->data,
- sizeof (uint32_t) * width * height);
- memset(gc_image->data, 0, width * height * sizeof (uint32_t));
+ gc_image->data = reallocarray(gc_image->data, width * height,
+ sizeof (uint32_t));
+ if (gc_image->data != NULL)
+ memset(gc_image->data, 0, width * height *
+ sizeof (uint32_t));
}
}
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