Re: KASAN: use-after-free Read in mnt_warn_timestamp_expiry

[Al Viro]

On Wed, Oct 16, 2019 at 07:27:05PM -0700, Eric Biggers wrote:

> How about the following?
> 
> 	pr_warn("%s filesystem being %s at %s supports timestamps until %04ld (0x%llx)\n",
> 		sb->s_type->name,
> 		is_mounted(mnt) ? "remounted" : "mounted",
> 		mntpath,
> 		tm.tm_year+1900, (unsigned long long)sb->s_time_max);
> 
> I think more people would understand "remounted" than "reconfigured".  Also,
> is_mounted(mnt) seems like a better choice than mnt_has_parent(real_mount(mnt)).

Works for me(tm).  Care to fold that into your patch and resend?