linux-kernel - Re: [syzbot] [bcachefs?] KASAN: use-after-free Read in bch2_extent_ptr_to

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Message-ID: <691c522c.a70a0220.3124cb.00c0.GAE@google.com>
Date: Tue, 18 Nov 2025 03:02:04 -0800
From: syzbot <syzbot+564efbe31172fe908429@...kaller.appspotmail.com>
To: kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org, 
	linux-kernel@...r.kernel.org, ssrane_b23@...vjti.ac.in, 
	syzkaller-bugs@...glegroups.com, torvalds@...ux-foundation.org
Subject: Re: [syzbot] [bcachefs?] KASAN: use-after-free Read in bch2_extent_ptr_to_text

syzbot suspects this issue was fixed by commit:

commit f2c61db29f277b9c80de92102fc532cc247495cd
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Mon Sep 29 20:43:52 2025 +0000

    Remove bcachefs core code

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13b43914580000
start commit:   8f9736633f8c Merge tag 'trace-v6.17-rc7' of git://git.kern..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=f5b21423ca3f0a96
dashboard link: https://syzkaller.appspot.com/bug?extid=564efbe31172fe908429
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16d48334580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12e7bf12580000

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

#syz fix: Remove bcachefs core code

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