From 6085c67cce5d4c5495e9a585d137b79af1b1598e Mon Sep 17 00:00:00 2001 From: jikai Date: Tue, 19 Dec 2023 15:41:05 +0800 Subject: [PATCH] check cgroup path empty while setting freezer Signed-off-by: jikai --- src/lxc/start.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/lxc/start.c b/src/lxc/start.c index ec64546..c01eb9b 100644 --- a/src/lxc/start.c +++ b/src/lxc/start.c @@ -1020,9 +1020,15 @@ static int get_all_pids(struct cgroup_ops *cg_ops, pid_t **pids, size_t *len) static int set_cgroup_freezer(struct cgroup_ops *cg_ops, const char *value) { char *fullpath; + const char *cgroup_path; int ret; - fullpath = must_make_path(cg_ops->get_cgroup_full_path(cg_ops, "freezer"), "freezer.state", NULL); + cgroup_path = cg_ops->get_cgroup_full_path(cg_ops, "freezer"); + if (cgroup_path == NULL) { + return -1; + } + + fullpath = must_make_path(cgroup_path, "freezer.state", NULL); ret = lxc_write_to_file(fullpath, value, strlen(value), false, 0666); free(fullpath); return ret; -- 2.33.0