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Date:      Sat, 30 Oct 2021 22:40:38 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 259071] Read past EoF in NFS client and fusefs
Message-ID:  <bug-259071-227-nV4V0avF2I@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-259071-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-259071-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D259071

--- Comment #8 from Rick Macklem <rmacklem@FreeBSD.org> ---
Just fyi, I just ran the demo/test program on a stable/12
kernel and it did not fail.
- The bug fixed by 2nd attachment has been in the NFS client
  code for decades.
--> I suspect a post-stable/12 change to the name cache exposed
    the failure. (If the Lookups hit the name cache, there won't be
    Lookup RPCs to race against the Setattr-of-size.)

The fix probably should be MFC'd to stable/12, but won't make it
in 12.3.

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