coverity: #1425778

Out-of-bounds write Signed-off-by: 2xsec <dh48.jeong@samsung.com>

coverity: #1425778
5acd5cf0 · 2xsec · Christian Brauner · 04bed15a · 5acd5cf0
Unverified Commit 5acd5cf0 authored Jun 15, 2018 by 2xsec Committed by Christian Brauner Dec 10, 2018
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criu.c src/lxc/criu.c +5 -1

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--- a/src/lxc/criu.c
+++ b/src/lxc/criu.c
@@ -1209,7 +1209,11 @@ static bool do_dump(struct lxc_container *c, char *mode, struct migrate_opts *op
 			SYSERROR("read");
 			n = 0;
 		}
-		buf[n] = 0;
+
+		if (n == sizeof(buf))
+			buf[n-1] = 0;
+		else
+			buf[n] = 0;

 		if (WIFEXITED(status)) {
 			if (WEXITSTATUS(status)) {