diff options
| -rw-r--r-- | fs/exec.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/exec.c b/fs/exec.c index 93e40f865523..8c3abafb9bb1 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1391,6 +1391,7 @@ EXPORT_SYMBOL(would_dump); void setup_new_exec(struct linux_binprm * bprm) { + struct task_struct *me = current; /* * Once here, prepare_binrpm() will not be called any more, so * the final state of setuid/setgid/fscaps can be merged into the @@ -1400,7 +1401,7 @@ void setup_new_exec(struct linux_binprm * bprm) if (bprm->secureexec) { /* Make sure parent cannot signal privileged process. */ - current->pdeath_signal = 0; + me->pdeath_signal = 0; /* * For secureexec, reset the stack limit to sane default to @@ -1413,9 +1414,9 @@ void setup_new_exec(struct linux_binprm * bprm) bprm->rlim_stack.rlim_cur = _STK_LIM; } - arch_pick_mmap_layout(current->mm, &bprm->rlim_stack); + arch_pick_mmap_layout(me->mm, &bprm->rlim_stack); - current->sas_ss_sp = current->sas_ss_size = 0; + me->sas_ss_sp = me->sas_ss_size = 0; /* * Figure out dumpability. Note that this checking only of current @@ -1431,18 +1432,18 @@ void setup_new_exec(struct linux_binprm * bprm) arch_setup_new_exec(); perf_event_exec(); - __set_task_comm(current, kbasename(bprm->filename), true); + __set_task_comm(me, kbasename(bprm->filename), true); /* Set the new mm task size. We have to do that late because it may * depend on TIF_32BIT which is only updated in flush_thread() on * some architectures like powerpc */ - current->mm->task_size = TASK_SIZE; + me->mm->task_size = TASK_SIZE; /* An exec changes our domain. We are no longer part of the thread group */ - WRITE_ONCE(current->self_exec_id, current->self_exec_id + 1); - flush_signal_handlers(current, 0); + WRITE_ONCE(me->self_exec_id, me->self_exec_id + 1); + flush_signal_handlers(me, 0); /* * install the new credentials for this executable @@ -1458,16 +1459,16 @@ void setup_new_exec(struct linux_binprm * bprm) * wait until new credentials are committed * by commit_creds() above */ - if (get_dumpable(current->mm) != SUID_DUMP_USER) - perf_event_exit_task(current); + if (get_dumpable(me->mm) != SUID_DUMP_USER) + perf_event_exit_task(me); /* * cred_guard_mutex must be held at least to this point to prevent * ptrace_attach() from altering our determination of the task's * credentials; any time after this it may be unlocked. */ security_bprm_committed_creds(bprm); - mutex_unlock(¤t->signal->exec_update_mutex); - mutex_unlock(¤t->signal->cred_guard_mutex); + mutex_unlock(&me->signal->exec_update_mutex); + mutex_unlock(&me->signal->cred_guard_mutex); } EXPORT_SYMBOL(setup_new_exec); |