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bhyvegc_resize: make use of reallocarray(3) for bounds-checking.

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Also add __FBSDID.

Reviewed by:	grehan

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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
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This commit is contained in:
Pedro F. Giffuni 2017-05-24 14:24:47 +00:00
parent e058e1c43c
commit 880f26f3eb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=318788
1 changed files with 6 additions and 3 deletions
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9
usr.sbin/bhyve/bhyvegc.c
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@ -1,4 +1,5 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
@ -56,9 +57,11 @@ bhyvegc_resize(struct bhyvegc *gc, int width, int height)
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));
}
}