Messages in this thread | | | Date | Thu, 16 Feb 2023 14:57:38 +0100 | From | Oleg Nesterov <> | Subject | Re: [PATCH 2/2] ptrace,syscall_user_dispatch: checkpoint/restore support for SUD |
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On 02/14, Gregory Price wrote: > > +struct compat_ptrace_sud_config { > + compat_ulong_t mode; > + compat_uptr_t selector; > + compat_ulong_t offset; > + compat_ulong_t len; > +};
...
> +int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size, > + void __user *data) > +{ > + struct syscall_user_dispatch *sd = &task->syscall_dispatch; > +#ifdef CONFIG_COMPAT > + if (unlikely(in_compat_syscall())) { > + struct compat_ptrace_sud_config cfg32; > + > + if (size != sizeof(struct compat_ptrace_sud_config)) > + return -EINVAL; > +
Horror ;) why?
See my reply to v9, just make
struct ptrace_sud_config { __u8 mode; __u64 selector; __u64 offset; __u64 len; };
Oleg.
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