D43480.id.diff
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D43480.id.diff
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	diff --git a/usr.sbin/bhyve/gdb.c b/usr.sbin/bhyve/gdb.c
	--- a/usr.sbin/bhyve/gdb.c
	+++ b/usr.sbin/bhyve/gdb.c
	@@ -1052,6 +1052,8 @@
	bool started;
	int error;

	+ assert(len >= 1);
	+
	/* Skip 'm' */
	data += 1;
	len -= 1;
	@@ -1163,6 +1165,8 @@
	size_t resid, todo, bytes;
	int error;

	+ assert(len >= 1);
	+
	/* Skip 'M' */
	data += 1;
	len -= 1;
	@@ -1557,7 +1561,7 @@

	data += strlen("qThreadExtraInfo");
	len -= strlen("qThreadExtraInfo");
	- if (*data != ',') {
	+ if (len == 0 \|\| *data != ',') {
	send_error(EINVAL);
	return;
	}
	@@ -1608,7 +1612,7 @@
	case 'H': {
	int tid;

	- if (data[1] != 'g' && data[1] != 'c') {
	+ if (len < 2 \|\| (data[1] != 'g' && data[1] != 'c')) {
	send_error(EINVAL);
	break;
	}