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Date: Sat, 04 May 2024 17:35:04 -0700
From: syzbot <syzbot+8c4acf719c3fc41e8439@...kaller.appspotmail.com>
To: bfoster@...hat.com, davem@...emloft.net, herbert@...dor.apana.org.au,
kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org,
linux-crypto@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs] KASAN: use-after-free Read in scatterwalk_copychunks
syzbot has bisected this issue to:
commit dc6f2eb000d76ac8f93f4d59a8012ddfccca927a
Author: Kent Overstreet <kent.overstreet@...ux.dev>
Date: Wed Apr 17 05:26:02 2024 +0000
bcachefs: make btree read errors silent during scan
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16629450980000
start commit: 9221b2819b8a Add linux-next specific files for 20240503
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=15629450980000
console output: https://syzkaller.appspot.com/x/log.txt?x=11629450980000
kernel config: https://syzkaller.appspot.com/x/.config?x=8ab537f51a6a0d98
dashboard link: https://syzkaller.appspot.com/bug?extid=8c4acf719c3fc41e8439
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=111abc97180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10059004980000
Reported-by: syzbot+8c4acf719c3fc41e8439@...kaller.appspotmail.com
Fixes: dc6f2eb000d7 ("bcachefs: make btree read errors silent during scan")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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