Message-ID: <0000000000006dd465061ff836c9@google.com>
Date: Sun, 18 Aug 2024 10:06:25 -0700
From: syzbot <syzbot+453873f1588c2d75b447@...kaller.appspotmail.com>
To: jlbec@...lplan.org, joseph.qi@...ux.alibaba.com, 
	linux-kernel@...r.kernel.org, mark@...heh.com, ocfs2-devel@...ts.linux.dev, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] [ocfs2?] kernel BUG in ocfs2_set_new_buffer_uptodate

Hello,

syzbot found the following issue on:

HEAD commit:    c3f2d783a459 Merge tag 'mm-hotfixes-stable-2024-08-17-19-3..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1530ec05980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7229118d88b4a71b
dashboard link: https://syzkaller.appspot.com/bug?extid=453873f1588c2d75b447
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=158a2f5d980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11543be5980000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-c3f2d783.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4d927f7c3cfd/vmlinux-c3f2d783.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ea54bdfad24b/bzImage-c3f2d783.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/fe8fff7766d6/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+453873f1588c2d75b447@...kaller.appspotmail.com

(syz-executor245,5108,0):ocfs2_verify_group_and_input:428 ERROR: add a group which is in the current volume.
(syz-executor245,5108,0):ocfs2_group_add:511 ERROR: status = -22
------------[ cut here ]------------
kernel BUG at fs/ocfs2/uptodate.c:509!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5108 Comm: syz-executor245 Not tainted 6.11.0-rc3-syzkaller-00338-gc3f2d783a459 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x145/0x160 fs/ocfs2/uptodate.c:509
Code: 03 42 80 3c 20 00 74 08 48 89 df e8 d5 8a 65 fe 4c 8b 1b 4c 89 ff 5b 41 5c 41 5d 41 5e 41 5f 41 ff e3 cc 90 e8 ec 48 fe fd 90 <0f> 0b e8 e4 48 fe fd 90 0f 0b e8 dc 48 fe fd 90 0f 0b e8 d4 48 fe
RSP: 0018:ffffc90002cefa50 EFLAGS: 00010293
RAX: ffffffff83954204 RBX: 0000000000000001 RCX: ffff88801c0d2440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002cefcf0 R08: ffffffff839540ee R09: 1ffffffff202fdd5
R10: dffffc0000000000 R11: fffffbfff202fdd6 R12: dffffc0000000000
R13: 1ffff9200059df68 R14: ffff88803be1b0e8 R15: ffff88803be632f0
FS:  000055555a5c8480(0000) GS:ffff888020800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000d0 CR3: 00000000190b6000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_group_add+0x39f/0x15a0 fs/ocfs2/resize.c:507
 ocfs2_ioctl+0x661/0x7e0 fs/ocfs2/ioctl.c:891
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8b013a2259
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe3e81d468 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8b013a2259
RDX: 00000000200000c0 RSI: 0000000040186f02 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe3e81d4a0
R10: 00007ffe3e81d470 R11: 0000000000000246 R12: 00007ffe3e81d4a0
R13: 00007ffe3e81d728 R14: 431bde82d7b634db R15: 00007f8b013eb03b
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x145/0x160 fs/ocfs2/uptodate.c:509
Code: 03 42 80 3c 20 00 74 08 48 89 df e8 d5 8a 65 fe 4c 8b 1b 4c 89 ff 5b 41 5c 41 5d 41 5e 41 5f 41 ff e3 cc 90 e8 ec 48 fe fd 90 <0f> 0b e8 e4 48 fe fd 90 0f 0b e8 dc 48 fe fd 90 0f 0b e8 d4 48 fe
RSP: 0018:ffffc90002cefa50 EFLAGS: 00010293
RAX: ffffffff83954204 RBX: 0000000000000001 RCX: ffff88801c0d2440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002cefcf0 R08: ffffffff839540ee R09: 1ffffffff202fdd5
R10: dffffc0000000000 R11: fffffbfff202fdd6 R12: dffffc0000000000
R13: 1ffff9200059df68 R14: ffff88803be1b0e8 R15: ffff88803be632f0
FS:  000055555a5c8480(0000) GS:ffff888020800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000d0 CR3: 00000000190b6000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
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