------------[ cut here ]------------
WARNING: CPU: 0 PID: 7305 at fs/ext4/ext4_jbd2.c:76 ext4_journal_check_start+0x255/0x340 fs/ext4/ext4_jbd2.c:76
Modules linked in:
CPU: 0 UID: 0 PID: 7305 Comm: syz.3.382 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ext4_journal_check_start+0x255/0x340 fs/ext4/ext4_jbd2.c:76
Code: 89 d8 5b 5d 41 5c 41 5d e9 e3 93 9f fe e8 d3 6e 4b ff bb fb ff ff ff 89 d8 5b 5d 41 5c 41 5d e9 cc 93 9f fe e8 bc 6e 4b ff 90 <0f> 0b 90 bb e2 ff ff ff eb c7 e8 ac 6e 4b ff 90 0f 0b 90 e9 2e ff
RSP: 0018:ffffc90003ecf668 EFLAGS: 00010283
RAX: 0000000000000fda RBX: ffff8880325ac000 RCX: ffffc9000de5e000
RDX: 0000000000080000 RSI: ffffffff8270ad44 RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffff1100607380a R12: ffff8880325ac640
R13: ffff8880325aa000 R14: 0000000000000000 R15: 0000000000000364
FS:  00007f91342b86c0(0000) GS:ffff88812475b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f30d44006d0 CR3: 000000007e2d7000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0xb6/0x690 fs/ext4/ext4_jbd2.c:108
 ext4_sample_last_mounted fs/ext4/file.c:868 [inline]
 ext4_file_open+0x873/0x1130 fs/ext4/file.c:900
 do_dentry_open+0x744/0x1c10 fs/open.c:964
 vfs_open+0x82/0x3f0 fs/open.c:1094
 do_open fs/namei.c:3887 [inline]
 path_openat+0x1de4/0x2cb0 fs/namei.c:4046
 do_filp_open+0x20b/0x470 fs/namei.c:4073
 do_open_execat+0xf9/0x450 fs/exec.c:780
 open_exec+0x45/0x80 fs/exec.c:817
 bm_register_write+0xe87/0x1950 fs/binfmt_misc.c:833
 vfs_write+0x2a0/0x1150 fs/read_write.c:684
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f913338e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f91342b8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f91335b6080 RCX: 00007f913338e929
RDX: 000000000000002a RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007f9133410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f91335b6080 R15: 00007ffcac7bbc98
 </TASK>