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-rw-r--r--kernel/fork.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 7ce2ebe84796..30de644a40c4 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -802,6 +802,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
802 802
803 sig->leader = 0; /* session leadership doesn't inherit */ 803 sig->leader = 0; /* session leadership doesn't inherit */
804 sig->tty_old_pgrp = NULL; 804 sig->tty_old_pgrp = NULL;
805 sig->tty = NULL;
805 806
806 sig->utime = sig->stime = sig->cutime = sig->cstime = cputime_zero; 807 sig->utime = sig->stime = sig->cutime = sig->cstime = cputime_zero;
807 sig->gtime = cputime_zero; 808 sig->gtime = cputime_zero;
@@ -838,6 +839,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
838void __cleanup_signal(struct signal_struct *sig) 839void __cleanup_signal(struct signal_struct *sig)
839{ 840{
840 exit_thread_group_keys(sig); 841 exit_thread_group_keys(sig);
842 tty_kref_put(sig->tty);
841 kmem_cache_free(signal_cachep, sig); 843 kmem_cache_free(signal_cachep, sig);
842} 844}
843 845
@@ -1227,7 +1229,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
1227 p->nsproxy->pid_ns->child_reaper = p; 1229 p->nsproxy->pid_ns->child_reaper = p;
1228 1230
1229 p->signal->leader_pid = pid; 1231 p->signal->leader_pid = pid;
1230 p->signal->tty = current->signal->tty; 1232 tty_kref_put(p->signal->tty);
1233 p->signal->tty = tty_kref_get(current->signal->tty);
1231 set_task_pgrp(p, task_pgrp_nr(current)); 1234 set_task_pgrp(p, task_pgrp_nr(current));
1232 set_task_session(p, task_session_nr(current)); 1235 set_task_session(p, task_session_nr(current));
1233 attach_pid(p, PIDTYPE_PGID, task_pgrp(current)); 1236 attach_pid(p, PIDTYPE_PGID, task_pgrp(current));