Message-ID: <672071c0.050a0220.11b624.04bd.GAE@google.com>
Date: Mon, 28 Oct 2024 22:25:20 -0700
From: syzbot <syzbot+c28d8da3e83b3cc68dc6@...kaller.appspotmail.com>
To: jack@...e.com, jack@...e.cz, jlbec@...lplan.org, 
	joseph.qi@...ux.alibaba.com, linux-ext4@...r.kernel.org, 
	linux-kernel@...r.kernel.org, mark@...heh.com, ocfs2-devel@...ts.linux.dev, 
	syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] [ocfs2] kernel BUG in jbd2_journal_dirty_metadata

syzbot has found a reproducer for the following issue on:

HEAD commit:    e42b1a9a2557 Merge tag 'spi-fix-v6.12-rc5' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14efef57980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4aec7739e14231a7
dashboard link: https://syzkaller.appspot.com/bug?extid=c28d8da3e83b3cc68dc6
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=10d2064b980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12efef57980000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-e42b1a9a.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3e2253169da8/vmlinux-e42b1a9a.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b9d2f5008f24/bzImage-e42b1a9a.xz
mounted in repro #1: https://storage.googleapis.com/syzbot-assets/5f7c8b60a2d3/mount_0.gz
mounted in repro #2: https://storage.googleapis.com/syzbot-assets/0a01b18a6599/mount_9.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c28d8da3e83b3cc68dc6@...kaller.appspotmail.com

(syz-executor419,5307,0):ocfs2_xa_prepare_entry:2152 ERROR: status = -30
(syz-executor419,5307,0):ocfs2_xa_set:2255 ERROR: status = -30
JBD2: assertion failure: h_type=0 h_line_no=0 block_no=19105 jlist=0
------------[ cut here ]------------
kernel BUG at fs/jbd2/transaction.c:1529!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5307 Comm: syz-executor419 Not tainted 6.12.0-rc5-syzkaller-00005-ge42b1a9a2557 #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:jbd2_journal_dirty_metadata+0xbed/0xc00 fs/jbd2/transaction.c:1528
Code: 89 ff e9 88 fd ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c af fd ff ff 48 89 df e8 fe 1d 89 ff e9 a2 fd ff ff e8 64 61 1f ff 90 <0f> 0b e8 5c 61 1f ff 90 0f 0b 66 0f 1f 84 00 00 00 00 00 90 90 90
RSP: 0018:ffffc9000cf66a38 EFLAGS: 00010293
RAX: ffffffff8275772c RBX: 0000000000000000 RCX: ffff888000938000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 1ffff1100350b135 R08: ffffffff82756f44 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: ffff88801a8589ac
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801a858968
FS:  00005555742c7380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000032b9e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_journal_dirty+0x156/0x7c0 fs/ocfs2/journal.c:812
 ocfs2_xa_journal_dirty fs/ocfs2/xattr.c:1453 [inline]
 ocfs2_xa_set+0x225b/0x2b40 fs/ocfs2/xattr.c:2264
 ocfs2_xattr_block_set+0x46e/0x3390 fs/ocfs2/xattr.c:2986
 __ocfs2_xattr_set_handle+0x67a/0x10a0 fs/ocfs2/xattr.c:3388
 ocfs2_xattr_set+0x128c/0x1930 fs/ocfs2/xattr.c:3651
 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
 vfs_setxattr+0x221/0x430 fs/xattr.c:321
 do_setxattr fs/xattr.c:629 [inline]
 path_setxattr+0x37e/0x4d0 fs/xattr.c:658
 __do_sys_lsetxattr fs/xattr.c:683 [inline]
 __se_sys_lsetxattr fs/xattr.c:679 [inline]
 __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679
 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: 0033:0x7f84c9e37bb9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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:00007ffced766518 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f84c9e37bb9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 00000000200000c0
RBP: 00007f84c9eb4610 R08: 0000000000000000 R09: 00007ffced7666e8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffced7666d8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jbd2_journal_dirty_metadata+0xbed/0xc00 fs/jbd2/transaction.c:1528
Code: 89 ff e9 88 fd ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c af fd ff ff 48 89 df e8 fe 1d 89 ff e9 a2 fd ff ff e8 64 61 1f ff 90 <0f> 0b e8 5c 61 1f ff 90 0f 0b 66 0f 1f 84 00 00 00 00 00 90 90 90
RSP: 0018:ffffc9000cf66a38 EFLAGS: 00010293
RAX: ffffffff8275772c RBX: 0000000000000000 RCX: ffff888000938000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 1ffff1100350b135 R08: ffffffff82756f44 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: ffff88801a8589ac
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801a858968
FS:  00005555742c7380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000032b9e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

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