diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index c9b203875001..8fee1f2eba2f 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -85,6 +85,11 @@ static int sig_task_ignored(struct task_struct *t, int sig, bool force) handler == SIG_DFL && !(force && sig_kernel_only(sig))) return 1; + /* Only allow kernel generated signals to this kthread */ + if (unlikely((t->flags & PF_KTHREAD) && + (handler == SIG_KTHREAD_KERNEL) && !force)) + return true; + return sig_handler_ignored(handler, sig); } |