Re: [PATCHv3] exec: Fix a deadlock in ptrace

Bernd Edlinger
2020-03-02T20:29:05Z

On 3/2/20 9:10 PM, Bernd Edlinger wrote:
> --- a/include/linux/binfmts.h
> +++ b/include/linux/binfmts.h
> @@ -44,7 +44,11 @@ struct linux_binprm {
> * exec has happened. Used to sanitize execution environment
> * and to set AT_SECURE auxv for glibc.
> */
> - secureexec:1;
> + secureexec:1,
> + /*
> + * Set by flush_old_exec, when the cred_change_mutex is taken.

Oops, missed to update this comment, should be "when the cred_guard_mutex is taken".

I'll send a new patch later.

Bernd.

> + */
> + called_flush_old_exec:1;
> #ifdef __alpha__
> unsigned int taso:1;
> #endif