confile: don't leak memory in case multiple shmounts are set

Link: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32503Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

confile: don't leak memory in case multiple shmounts are set
285dd691 · Christian Brauner · 265542bb · 285dd691
Unverified Commit 285dd691 authored Mar 27, 2021 by Christian Brauner
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confile.c src/lxc/confile.c +3 -0

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--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -2070,7 +2070,10 @@ static int set_config_mount_auto(const char *key, const char *value,
 			if(!container_path)
 				return log_error_errno(-EINVAL, EINVAL, "Failed to copy shmounts container path");

+			free_disarm(lxc_conf->shmount.path_host);
 			lxc_conf->shmount.path_host = move_ptr(host_path);
+
+			free_disarm(lxc_conf->shmount.path_cont);
 			lxc_conf->shmount.path_cont = move_ptr(container_path);
 		}
 	}