------------[ cut here ]------------
WARNING: CPU: 1 PID: 10300 at fs/ext4/ext4_jbd2.c:75 ext4_journal_check_start+0x1e6/0x240 fs/ext4/ext4_jbd2.c:75
Modules linked in:
CPU: 1 PID: 10300 Comm: syz.8.1967 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:ext4_journal_check_start+0x1e6/0x240 fs/ext4/ext4_jbd2.c:75
Code: e8 af 12 14 00 48 83 c4 08 b8 e2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b6 63 63 ff b8 fb ff ff ff eb e9 e8 aa 63 63 ff <0f> 0b 43 80 7c 25 00 00 0f 85 18 ff ff ff e9 1b ff ff ff 44 89 f9
RSP: 0018:ffffc90004bc7530 EFLAGS: 00010283
RAX: ffffffff821ecf36 RBX: ffff888079a28000 RCX: 0000000000080000
RDX: ffffc9000f83b000 RSI: 0000000000015960 RDI: 0000000000015961
RBP: 0000000000000004 R08: ffff888078f80417 R09: 1ffff1100f1f0082
R10: dffffc0000000000 R11: ffffed100f1f0083 R12: dffffc0000000000
R13: 1ffff1100f3450cf R14: ffff888079a28678 R15: ffff888079a28338
FS:  00007f70e1a156c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30022ff8 CR3: 0000000028c60000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0xd8/0x3d0 fs/ext4/ext4_jbd2.c:98
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_acquire_dquot+0x2c5/0x4a0 fs/ext4/super.c:6833
 dqget+0x713/0xbb0 fs/quota/dquot.c:1013
 __dquot_initialize+0x324/0xd00 fs/quota/dquot.c:1542
 ext4_file_open+0x2da/0x6f0 fs/ext4/file.c:876
 do_dentry_open+0x7dd/0x10b0 fs/open.c:882
 do_open fs/namei.c:3677 [inline]
 path_openat+0x2674/0x2f10 fs/namei.c:3834
 do_filp_open+0x1ee/0x420 fs/namei.c:3861
 do_sys_openat2+0x14b/0x4f0 fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1347
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f70e0b9e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f70e1a15028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f70e0e26090 RCX: 00007f70e0b9e159
RDX: 0000000000107042 RSI: 0000200000000340 RDI: ffffffffffffff9c
RBP: 00007f70e0c3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000024 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f70e0e26128 R14: 00007f70e0e26090 R15: 00007ffc5d3d87b8
 </TASK>