Re: tmpfs returns incorrect data on concurrent pread() and truncate()

From: Jakob Unterwurzacher
Date: Thu Nov 03 2016 - 19:46:01 EST

First of all, thanks for your replies!

On 02.11.2016 00:51, Hugh Dickins wrote:
> I don't think that there will be much appetite for changing the
> kernel's VFS to prevent that. I hope that gocryptfs can provide
> the serialization that it needs for itself, or otherwise handle
> those zeroes without crashing.

Yes, I dropped the nonce sanity check, the MAC will catch the corruption

Just FYI, xfstests generic/075 discovered this. The test itself does not check
the data it gets back, which is why it usually passes.

Best regards,