------------[ cut here ]------------
WARNING: CPU: 0 PID: 7346 at fs/ext4/ext4_jbd2.c:75 ext4_journal_check_start+0x255/0x340 fs/ext4/ext4_jbd2.c:75
Modules linked in:
CPU: 0 UID: 0 PID: 7346 Comm: syz.5.506 Not tainted 6.15.0-rc3-syzkaller-00076-ge72e9e693307 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ext4_journal_check_start+0x255/0x340 fs/ext4/ext4_jbd2.c:75
Code: 89 d8 5b 5d 41 5c 41 5d e9 53 0e a2 fe e8 83 0c 4d ff bb fb ff ff ff 89 d8 5b 5d 41 5c 41 5d e9 3c 0e a2 fe e8 6c 0c 4d ff 90 <0f> 0b 90 bb e2 ff ff ff eb c7 e8 5c 0c 4d ff 90 0f 0b 90 e9 2e ff
RSP: 0018:ffffc90002e5f678 EFLAGS: 00010287
RAX: 0000000000000eb7 RBX: ffff8880335f8000 RCX: ffffc9000cdd6000
RDX: 0000000000080000 RSI: ffffffff826e32d4 RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffff11006538bca R12: ffff8880335f8638
R13: ffff8880335fa000 R14: 0000000000000000 R15: 000000000000035f
FS:  00007fc1b89726c0(0000) GS:ffff8881249b8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff4680e56c0 CR3: 00000000345ca000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0xb6/0x690 fs/ext4/ext4_jbd2.c:107
 ext4_sample_last_mounted fs/ext4/file.c:863 [inline]
 ext4_file_open+0x853/0x10a0 fs/ext4/file.c:895
 do_dentry_open+0x744/0x1c10 fs/open.c:956
 vfs_open+0x82/0x3f0 fs/open.c:1086
 do_open fs/namei.c:3880 [inline]
 path_openat+0x1e5e/0x2d40 fs/namei.c:4039
 do_filp_open+0x20b/0x470 fs/namei.c:4066
 do_open_execat+0xf9/0x450 fs/exec.c:893
 open_exec+0x45/0x80 fs/exec.c:930
 bm_register_write+0xe65/0x1910 fs/binfmt_misc.c:833
 vfs_write+0x25f/0x1180 fs/read_write.c:682
 ksys_write+0x12a/0x240 fs/read_write.c:736
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc1b7b8e969
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:00007fc1b8972038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc1b7db6080 RCX: 00007fc1b7b8e969
RDX: 000000000000002a RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007fc1b7c10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc1b7db6080 R15: 00007ffdc0432318
 </TASK>