linux-kernel - Re: [syzbot] [gfs2?] KASAN: null-ptr-deref Read in gfs2_drop

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Message-ID: <68352f27.a70a0220.253bc2.009f.GAE@google.com>
Date: Mon, 26 May 2025 20:19:03 -0700
From: syzbot <syzbot+b12826218502df019f9d@...kaller.appspotmail.com>
To: agruenba@...hat.com, gfs2@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [gfs2?] KASAN: null-ptr-deref Read in gfs2_drop_inode

syzbot has bisected this issue to:

commit ae9f3bd8259a0a8f67be2420e66bb05fbb95af48
Author: Andreas Gruenbacher <agruenba@...hat.com>
Date:   Sat Apr 5 22:31:37 2025 +0000

    gfs2: replace sd_aspace with sd_inode

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1042cdf4580000
start commit:   176e917e010c Add linux-next specific files for 20250523
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1242cdf4580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1442cdf4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e7902c752bef748
dashboard link: https://syzkaller.appspot.com/bug?extid=b12826218502df019f9d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=151759f4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16b9c5f4580000

Reported-by: syzbot+b12826218502df019f9d@...kaller.appspotmail.com
Fixes: ae9f3bd8259a ("gfs2: replace sd_aspace with sd_inode")

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