diff options
| -rw-r--r-- | security/selinux/hooks.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 889cf4c3c3fa..b03b0776955a 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2123,11 +2123,13 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm) new_tsec->exec_sid = 0; /* - * Minimize confusion: if no_new_privs and a transition is - * explicitly requested, then fail the exec. + * Minimize confusion: if no_new_privs or nosuid and a + * transition is explicitly requested, then fail the exec. */ if (bprm->unsafe & LSM_UNSAFE_NO_NEW_PRIVS) return -EPERM; + if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID) + return -EACCES; } else { /* Check for a default transition on this program. */ rc = security_transition_sid(old_tsec->sid, isec->sid, |