lib: fix checking of returned file handle size for cgroup

Before this patch check is happened only in case when we try to find
cgroup at cgroup2 mount point.

v2:
  - add Fixes line before Signed-off-by (David Ahern)

Fixes: d5e6ee0dac ("ss: introduce cgroup2 cache and helper functions")
Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Dmitry Yakunin 2020-07-05 19:18:12 +03:00 committed by Stephen Hemminger
parent 9e5d246877
commit 8f1cd119b3

View File

@ -148,10 +148,10 @@ __u64 get_cgroup2_id(const char *path)
strerror(errno));
goto out;
}
if (fhp->handle_bytes != sizeof(__u64)) {
fprintf(stderr, "Invalid size of cgroup2 ID\n");
goto out;
}
}
if (fhp->handle_bytes != sizeof(__u64)) {
fprintf(stderr, "Invalid size of cgroup2 ID\n");
goto out;
}
memcpy(cg_id.bytes, fhp->f_handle, sizeof(__u64));