linux-kernel - Re: [syzbot] [f2fs?] KASAN: slab-out-of-bounds Read in build_sit

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Message-ID: <6834a7e9.a70a0220.29d4a0.0807.GAE@google.com>
Date: Mon, 26 May 2025 10:42:01 -0700
From: syzbot <syzbot+1fa48dc6faf1ff972d7d@...kaller.appspotmail.com>
To: chao@...nel.org, jaegeuk@...nel.org, 
	linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com, yohan.joung@...com
Subject: Re: [syzbot] [f2fs?] KASAN: slab-out-of-bounds Read in build_sit_entries

syzbot has bisected this issue to:

commit 313d10d79a82358bd8c3ee7ecda6356b1f7cde55
Author: yohan.joung <yohan.joung@...com>
Date:   Mon May 12 07:36:10 2025 +0000

    f2fs: add ckpt_valid_blocks to the section entry

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1300d170580000
start commit:   176e917e010c Add linux-next specific files for 20250523
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1080d170580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1700d170580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e7902c752bef748
dashboard link: https://syzkaller.appspot.com/bug?extid=1fa48dc6faf1ff972d7d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=128bead4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=100288e8580000

Reported-by: syzbot+1fa48dc6faf1ff972d7d@...kaller.appspotmail.com
Fixes: 313d10d79a82 ("f2fs: add ckpt_valid_blocks to the section entry")

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