last executing test programs:

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.1.69' (ED25519) to the list of known hosts.
[   62.984204][ T4946] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI
[   62.996113][ T4946] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
[   63.004542][ T4946] CPU: 1 UID: 0 PID: 4946 Comm: jbd2/sda1-8 Not tainted syzkaller #0 PREEMPT(full) 
[   63.013889][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[   63.023939][ T4946] RIP: 0010:__bh_submit+0x22d/0x8d0
[   63.029130][ T4946] Code: c1 e8 03 48 89 44 24 18 42 80 3c 20 00 74 08 48 89 df e8 f6 e7 d7 ff 48 89 5c 24 28 48 8b 1b 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 d4 e7 d7 ff 4d 8b 3f 4c 89 fe 48
[   63.048718][ T4946] RSP: 0018:ffffc9000e827868 EFLAGS: 00010202
[   63.054768][ T4946] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff84b9d9a9
[   63.062713][ T4946] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88802550f160
[   63.070661][ T4946] RBP: 0000000000009801 R08: ffff88802550f1bf R09: 1ffff11004aa1e37
[   63.078611][ T4946] R10: dffffc0000000000 R11: ffffed1004aa1e38 R12: dffffc0000000000
[   63.086561][ T4946] R13: ffff88802550f140 R14: ffff8880351bc7e0 R15: 0000000000000008
[   63.094510][ T4946] FS:  0000000000000000(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000
[   63.103415][ T4946] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.110063][ T4946] CR2: 00007f474afeb840 CR3: 000000000ed48000 CR4: 00000000003526f0
[   63.118013][ T4946] Call Trace:
[   63.121285][ T4946]  <TASK>
[   63.124196][ T4946]  ? __pfx_journal_end_buffer_io_sync+0x10/0x10
[   63.130427][ T4946]  jbd2_journal_commit_transaction+0x2285/0x5c80
[   63.136747][ T4946]  ? __pfx_jbd2_journal_commit_transaction+0x10/0x10
[   63.143405][ T4946]  ? __pfx_do_raw_spin_lock+0x10/0x10
[   63.148761][ T4946]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[   63.154551][ T4946]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[   63.160335][ T4946]  ? __timer_delete_sync+0x4a7/0x520
[   63.165600][ T4946]  kjournald2+0x3bc/0x740
[   63.169911][ T4946]  ? __pfx_kjournald2+0x10/0x10
[   63.174738][ T4946]  ? __pfx_autoremove_wake_function+0x10/0x10
[   63.180779][ T4946]  ? __kthread_parkme+0x71/0x1f0
[   63.185700][ T4946]  ? __kthread_parkme+0x199/0x1f0
[   63.190701][ T4946]  kthread+0x38b/0x480
[   63.194747][ T4946]  ? __pfx_kjournald2+0x10/0x10
[   63.199571][ T4946]  ? __pfx_kthread+0x10/0x10
[   63.204140][ T4946]  ret_from_fork+0x514/0xb70
[   63.208710][ T4946]  ? __pfx_ret_from_fork+0x10/0x10
[   63.213802][ T4946]  ? __switch_to+0xc89/0x1420
[   63.218460][ T4946]  ? __pfx_kthread+0x10/0x10
[   63.223030][ T4946]  ret_from_fork_asm+0x1a/0x30
[   63.227777][ T4946]  </TASK>
[   63.230773][ T4946] Modules linked in:
[   63.234777][ T4946] ---[ end trace 0000000000000000 ]---
[   63.240315][ T4946] RIP: 0010:__bh_submit+0x22d/0x8d0
[   63.240337][ T4946] Code: c1 e8 03 48 89 44 24 18 42 80 3c 20 00 74 08 48 89 df e8 f6 e7 d7 ff 48 89 5c 24 28 48 8b 1b 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 d4 e7 d7 ff 4d 8b 3f 4c 89 fe 48
[   63.240346][ T4946] RSP: 0018:ffffc9000e827868 EFLAGS: 00010202
[   63.240355][ T4946] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff84b9d9a9
[   63.240363][ T4946] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88802550f160
[   63.240369][ T4946] RBP: 0000000000009801 R08: ffff88802550f1bf R09: 1ffff11004aa1e37
[   63.240376][ T4946] R10: dffffc0000000000 R11: ffffed1004aa1e38 R12: dffffc0000000000
[   63.240383][ T4946] R13: ffff88802550f140 R14: ffff8880351bc7e0 R15: 0000000000000008
[   63.240391][ T4946] FS:  0000000000000000(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000
[   63.240399][ T4946] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.240406][ T4946] CR2: 00007f474afeb840 CR3: 000000000ed48000 CR4: 00000000003526f0
[   63.240423][ T4946] Kernel panic - not syncing: Fatal exception
[   63.340612][ T4946] Kernel Offset: disabled
[   63.344928][ T4946] Rebooting in 86400 seconds..