Re: [GIT PULL] execve updates for v6.13-rc1

[Al Viro]

On Wed, Nov 20, 2024 at 02:50:39PM -0800, Linus Torvalds wrote:
> So you probably want to do something like
> 
>         const char *name = smp_load_acquire(&dentry->d_name.name);
> 
> under the RCU read lock before then copying it with strscpy(). It
> should always be NULL-terminated.
> 
> If you want to be extra careful, you might surround it with a
> 
>         read_seqbegin_or_lock(&rename_lock, &seq);

What for?

	char name[something];

	sprintf(name, "%*pD", sizeof(name) - 1, file);

and be done with that...