diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-02-18 07:01:11 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-02-21 17:25:22 -0700 |
| commit | 6fb8f43cede0e4bd3ead847de78d531424a96be9 (patch) | |
| tree | b3737c986eaca5c5c7efd25d720879f3a6b0749b | |
| parent | 4727dc20e0422211a0e0c72b1ace4ed6096df8a6 (diff) | |
| download | linux-6fb8f43cede0e4bd3ead847de78d531424a96be9.tar.gz | |
kernel: treat PF_IO_WORKER like PF_KTHREAD for ptrace/signals
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | kernel/ptrace.c | 2 | ||||
| -rw-r--r-- | kernel/signal.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 61db50f7ca86..821cf1723814 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -375,7 +375,7 @@ static int ptrace_attach(struct task_struct *task, long request, audit_ptrace(task); retval = -EPERM; - if (unlikely(task->flags & PF_KTHREAD)) + if (unlikely(task->flags & (PF_KTHREAD | PF_IO_WORKER))) goto out; if (same_thread_group(task, current)) goto out; diff --git a/kernel/signal.c b/kernel/signal.c index 5ad8566534e7..ba4d1ef39a9e 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -91,7 +91,7 @@ static bool sig_task_ignored(struct task_struct *t, int sig, bool force) return true; /* Only allow kernel generated signals to this kthread */ - if (unlikely((t->flags & PF_KTHREAD) && + if (unlikely((t->flags & (PF_KTHREAD | PF_IO_WORKER)) && (handler == SIG_KTHREAD_KERNEL) && !force)) return true; @@ -1096,7 +1096,7 @@ static int __send_signal(int sig, struct kernel_siginfo *info, struct task_struc /* * Skip useless siginfo allocation for SIGKILL and kernel threads. */ - if ((sig == SIGKILL) || (t->flags & PF_KTHREAD)) + if ((sig == SIGKILL) || (t->flags & (PF_KTHREAD | PF_IO_WORKER))) goto out_set; /* |