lxc-snapshot: fix segfault

https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1751780Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

lxc-snapshot: fix segfault
07d7dc94 · Christian Brauner · 69556eaf · 07d7dc94
Unverified Commit 07d7dc94 authored Feb 26, 2018 by Christian Brauner
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lxc_snapshot.c src/lxc/tools/lxc_snapshot.c +6 -0

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--- a/src/lxc/tools/lxc_snapshot.c
+++ b/src/lxc/tools/lxc_snapshot.c
@@ -126,6 +126,12 @@ int main(int argc, char *argv[])
 		}
 	}

+	if (!c->lxc_conf) {
+		fprintf(stderr, "No container config specified\n");
+		lxc_container_put(c);
+		exit(EXIT_FAILURE);
+	}
+
 	if (!c->may_control(c)) {
 		fprintf(stderr, "Insufficent privileges to control %s\n",
 			my_args.name);