diff options
| -rw-r--r-- | modules/pam_loginuid/pam_loginuid.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/pam_loginuid/pam_loginuid.c b/modules/pam_loginuid/pam_loginuid.c index 62dd3d59..6f5a6380 100644 --- a/modules/pam_loginuid/pam_loginuid.c +++ b/modules/pam_loginuid/pam_loginuid.c @@ -65,7 +65,7 @@ static int set_loginuid(pam_handle_t *pamh, uid_t uid) fd = open("/proc/self/uid_map", O_RDONLY); if (fd >= 0) { count = pam_modutil_read(fd, uid_map, sizeof(uid_map)); - if (strncmp(uid_map, host_uid_map, count) != 0) + if (count <= 0 || strncmp(uid_map, host_uid_map, count) != 0) rc = PAM_IGNORE; close(fd); } |