linux-kernel - Re: [syzbot] [bcachefs?] INFO: task hung in vfs

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Message-ID: <68056323.050a0220.243d89.0036.GAE@google.com>
Date: Sun, 20 Apr 2025 14:12:03 -0700
From: syzbot <syzbot+6983c03a6a28616e362f@...kaller.appspotmail.com>
To: Yuezhang.Mo@...y.com, andy.wu@...y.com, bp@...en8.de, brauner@...nel.org, 
	dave.hansen@...ux.intel.com, hpa@...or.com, jack@...e.cz, 
	kent.overstreet@...ux.dev, linkinjeon@...nel.org, 
	linux-bcachefs@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, mingo@...hat.com, sj1557.seo@...sung.com, 
	syzkaller-bugs@...glegroups.com, tglx@...utronix.de, viro@...iv.linux.org.uk, 
	wataru.aoyama@...y.com, x86@...nel.org, yuezhang.mo@...y.com
Subject: Re: [syzbot] [bcachefs?] INFO: task hung in vfs_unlink (5)

syzbot suspects this issue was fixed by commit:

commit b0522303f67255926b946aa66885a0104d1b2980
Author: Yuezhang Mo <Yuezhang.Mo@...y.com>
Date:   Mon Mar 17 02:53:10 2025 +0000

    exfat: fix the infinite loop in exfat_find_last_cluster()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=155b4c70580000
start commit:   bb2281fb05e5 Merge tag 'x86_microcode_for_v6.14_rc6' of gi..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=523d3ff8e053340a
dashboard link: https://syzkaller.appspot.com/bug?extid=6983c03a6a28616e362f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12cf7078580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10197da8580000

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

#syz fix: exfat: fix the infinite loop in exfat_find_last_cluster()

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