linux-kernel - Re: [syzbot] [bcachefs?] KASAN: use-after-free Read in bch2

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Message-ID: <6858a9e2.a00a0220.23ad68.0004.GAE@google.com>
Date: Sun, 22 Jun 2025 18:12:02 -0700
From: syzbot <syzbot+7d5c34b9ec9fe139fc0c@...kaller.appspotmail.com>
To: kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs?] KASAN: use-after-free Read in bch2_checksum

syzbot suspects this issue was fixed by commit:

commit cd3cdb1ef706a1ac725194d81858d58375739b25
Author: Kent Overstreet <kent.overstreet@...ux.dev>
Date:   Tue Apr 22 13:14:19 2025 +0000

    bcachefs: Single err message for btree node reads

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=127d5b0c580000
start commit:   d76bb1ebb558 Merge tag 'erofs-for-6.15-rc6-fixes' of git:/..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=b9683d529ec1b880
dashboard link: https://syzkaller.appspot.com/bug?extid=7d5c34b9ec9fe139fc0c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=123544d4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11870768580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: bcachefs: Single err message for btree node reads

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