linux-kernel - Re: [syzbot] [fs?] general protection fault in iter_file_splice

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Message-ID: <0000000000005971a8061f70191d@google.com>
Date: Sun, 11 Aug 2024 15:43:02 -0700
From: syzbot <syzbot+d2125fcb6aa8c4276fd2@...kaller.appspotmail.com>
To: asmadeus@...ewreck.org, brauner@...nel.org, dhowells@...hat.com, 
	eadavis@...com, ericvh@...nel.org, jack@...e.cz, jlayton@...nel.org, 
	linux-afs@...ts.infradead.org, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux_oss@...debyte.com, lizhi.xu@...driver.com, 
	lucho@...kov.net, marc.dionne@...istor.com, netfs@...ts.linux.dev, 
	syzkaller-bugs@...glegroups.com, v9fs@...ts.linux.dev, 
	viro@...iv.linux.org.uk
Subject: Re: [syzbot] [fs?] general protection fault in iter_file_splice_write

syzbot has bisected this issue to:

commit 2df86547b23dabcd02ab000a24ed7813606c269f
Author: David Howells <dhowells@...hat.com>
Date:   Fri Mar 8 12:36:05 2024 +0000

    netfs: Cut over to using new writeback code

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=148b014b980000
start commit:   5189dafa4cf9 Merge tag 'nfsd-6.11-1' of git://git.kernel.o..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=168b014b980000
console output: https://syzkaller.appspot.com/x/log.txt?x=128b014b980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e8a2eef9745ade09
dashboard link: https://syzkaller.appspot.com/bug?extid=d2125fcb6aa8c4276fd2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16828c5d980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=103c7805980000

Reported-by: syzbot+d2125fcb6aa8c4276fd2@...kaller.appspotmail.com
Fixes: 2df86547b23d ("netfs: Cut over to using new writeback code")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection