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SubjectRe: [syzbot] [kernel?] inconsistent lock state in ptrace_attach
On 11/17, Peter Zijlstra wrote:
>
> --- a/kernel/ptrace.c
> +++ b/kernel/ptrace.c
> @@ -461,7 +461,7 @@ static int ptrace_attach(struct task_str
> return retval;
> }
>
> - scoped_guard (write_lock, &tasklist_lock) {
> + scoped_guard (write_lock_irq, &tasklist_lock) {

FWIW,

Acked-by: Oleg Nesterov <oleg@redhat.com>

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