On Thu, Oct 27, 2022 at 07:12:07PM +0000, Chuck Lever III wrote:

quoted

Begin forwarded message:

From: Jan Kasiak <redacted>
Subject: NFS 4 GPF while processing compound with multiple reads
Date: October 27, 2022 at 2:16:36 PM EDT
To: Linux NFS Mailing List <redacted>

Hi all,

While writing my own NFS client, I have found a simple test case that
triggers a general protection fault on the NFS server.

The NFS 4 compound is: PUT_FH, READ, READ
The second read causes the fault.

More information, including how to reproduce the bug is available in
the bug tracker: https://bugzilla.linux-nfs.org/show_bug.cgi?id=402

Bruce, are you interested in applying:

https://bugzilla.linux-nfs.org/show_bug.cgi?id=402#c2

Applied and pushed out.  (But not actually tested!  Let me know if
there's a problem.)

--b.