------------[ cut here ]------------
WARNING: CPU: 0 PID: 6519 at fs/ext4/ext4_jbd2.c:73 ext4_journal_check_start+0x1ed/0x250 fs/ext4/ext4_jbd2.c:73
Modules linked in:
CPU: 0 UID: 0 PID: 6519 Comm: syz.6.109 Not tainted 6.14.0-rc1-syzkaller-00187-g8f6629c004b1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:ext4_journal_check_start+0x1ed/0x250 fs/ext4/ext4_jbd2.c:73
Code: 41 bf e2 ff ff ff 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f e9 91 72 9d fe e8 a1 8f 4c ff 41 bf fb ff ff ff eb e2 e8 94 8f 4c ff 90 <0f> 0b 90 eb d1 e8 89 8f 4c ff 90 0f 0b 90 43 80 7c 25 00 00 0f 85
RSP: 0018:ffffc9000217f440 EFLAGS: 00010283
RAX: ffffffff8272ce8c RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000c90b000 RSI: 0000000000000719 RDI: 000000000000071a
RBP: 0000000000000001 R08: ffffffff8272cd60 R09: 1ffff110025f9870
R10: dffffc0000000000 R11: ffffed10025f9871 R12: dffffc0000000000
R13: 1ffff110025f9cc7 R14: ffff888012fce000 R15: ffff888012fce638
FS:  00007f17014ad6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f17014acf98 CR3: 0000000027a0e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0x181/0x600 fs/ext4/ext4_jbd2.c:105
 ext4_sample_last_mounted fs/ext4/file.c:859 [inline]
 ext4_file_open+0x5f5/0x8b0 fs/ext4/file.c:887
 do_dentry_open+0xdee/0x1960 fs/open.c:956
 vfs_open+0x3b/0x370 fs/open.c:1086
 do_open fs/namei.c:3830 [inline]
 path_openat+0x2c81/0x3590 fs/namei.c:3989
 do_filp_open+0x27f/0x4e0 fs/namei.c:4016
 do_open_execat+0x165/0x4f0 fs/exec.c:895
 open_exec+0x40/0x60 fs/exec.c:932
 bm_register_write+0xc63/0x1630 fs/binfmt_misc.c:833
 vfs_write+0x2a1/0xd10 fs/read_write.c:677
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 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: 0033:0x7f170058cde9
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:00007f17014ad038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f17007a6080 RCX: 00007f170058cde9
RDX: 000000000000002a RSI: 0000400000000000 RDI: 0000000000000006
RBP: 00007f170060e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f17007a6080 R15: 00007fff0aabb168
 </TASK>