[lxc-devel] [lxc/master] lxc-snapshot: fix segfault

brauner on Github lxc-bot at linuxcontainers.org
Mon Feb 26 14:31:44 UTC 2018


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From 07d7dc94383a4978bce4ae084f653139a602cf4b Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner at ubuntu.com>
Date: Mon, 26 Feb 2018 15:30:56 +0100
Subject: [PATCH] lxc-snapshot: fix segfault

https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1751780

Signed-off-by: Christian Brauner <christian.brauner at ubuntu.com>
---
 src/lxc/tools/lxc_snapshot.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/lxc/tools/lxc_snapshot.c b/src/lxc/tools/lxc_snapshot.c
index 19542b374..52ddd8fe9 100644
--- 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);


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