nsenter: add missing free()

Addresses: https://github.com/util-linux/util-linux/pull/2320
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/sys-utils/nsenter.c b/sys-utils/nsenter.c
index cdbdb482f7e5a54baa03d6009b124414c906329a..1c83e35c17010ac6235764758dab0475059581cc 100644 (file)
--- a/sys-utils/nsenter.c
+++ b/sys-utils/nsenter.c
@@ -224,8 +224,11 @@ static void open_cgroup_procs(void)
        path++;
 
        snprintf(fdpath, sizeof(fdpath), _PATH_SYS_CGROUP "/%s/cgroup.procs", path);
+
        if ((cgroup_procs_fd = open(fdpath, O_WRONLY | O_APPEND)) < 0)
                err(EXIT_FAILURE, _("failed to open cgroup.procs"));
+
+       free(buf);
 }
 
 static int is_cgroup2(void)