Warning: Permanently added '10.128.0.112' (ED25519) to the list of known hosts.
executing program
[   86.833232][ T4252] loop0: detected capacity change from 0 to 512
[   86.868321][ T4252] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback.
[   86.879066][ T4252] ext4 filesystem being mounted at /file0 supports timestamps until 2038-01-19 (0x7fffffff)
[   86.925773][ T4252] EXT4-fs (loop0): unmounting filesystem.
[   86.955748][ T4254] ------------[ cut here ]------------
[   86.961861][ T4254] kernel BUG at fs/buffer.c:2666!
[   86.967375][ T4254] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   86.974438][ T4254] CPU: 0 PID: 4254 Comm: kmmpd-loop0 Not tainted 6.1.139-syzkaller #0
[   86.983665][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
[   86.994619][ T4254] RIP: 0010:submit_bh_wbc+0x4ac/0x4d0
[   87.000408][ T4254] Code: 01 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c c0 fe ff ff 48 89 ef e8 85 67 e2 ff e9 b3 fe ff ff e8 2b f4 90 ff 0f 0b e8 24 f4 90 ff <0f> 0b e8 1d f4 90 ff 0f 0b e8 16 f4 90 ff 0f 0b e8 0f f4 90 ff 0f
[   87.021408][ T4254] RSP: 0018:ffffc90003c67cc8 EFLAGS: 00010293
[   87.028257][ T4254] RAX: ffffffff81efe2ec RBX: 0000000000000000 RCX: ffff88801c7a9dc0
[   87.036985][ T4254] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   87.046389][ T4254] RBP: 0000000000003801 R08: dffffc0000000000 R09: ffffed100e2f4458
[   87.055177][ T4254] R10: ffffed100e2f4458 R11: 1ffff1100e2f4457 R12: 1ffff1100e2f4457
[   87.064381][ T4254] R13: 0000000000000000 R14: ffff8880717a22b8 R15: ffff888072c24000
[   87.073147][ T4254] FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
[   87.082830][ T4254] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.090678][ T4254] CR2: 0000564b197872b0 CR3: 0000000073fbb000 CR4: 00000000003506f0
[   87.099005][ T4254] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   87.108034][ T4254] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   87.117672][ T4254] Call Trace:
[   87.121557][ T4254]  <TASK>
[   87.124882][ T4254]  ? debug_object_free+0x2a2/0x3e0
[   87.130304][ T4254]  write_mmp_block_thawed+0x360/0x4f0
[   87.136443][ T4254]  ? read_mmp_block+0x6f0/0x6f0
[   87.141688][ T4254]  ? rcu_read_lock_any_held+0xb0/0x120
[   87.149036][ T4254]  ? rcu_read_lock_bh_held+0xe0/0xe0
[   87.154901][ T4254]  ? kmmpd+0x6f7/0x980
[   87.159273][ T4254]  write_mmp_block+0x13e/0x3a0
[   87.164305][ T4254]  kmmpd+0x6f7/0x980
[   87.168650][ T4254]  kthread+0x29d/0x330
[   87.173919][ T4254]  ? write_mmp_block_thawed+0x4f0/0x4f0
[   87.180845][ T4254]  ? kthread_blkcg+0xd0/0xd0
[   87.186363][ T4254]  ret_from_fork+0x1f/0x30
[   87.191097][ T4254]  </TASK>
[   87.194217][ T4254] Modules linked in:
[   87.198736][ T4254] ---[ end trace 0000000000000000 ]---
[   87.206972][ T4254] RIP: 0010:submit_bh_wbc+0x4ac/0x4d0
[   87.213237][ T4254] Code: 01 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c c0 fe ff ff 48 89 ef e8 85 67 e2 ff e9 b3 fe ff ff e8 2b f4 90 ff 0f 0b e8 24 f4 90 ff <0f> 0b e8 1d f4 90 ff 0f 0b e8 16 f4 90 ff 0f 0b e8 0f f4 90 ff 0f
[   87.236885][ T4254] RSP: 0018:ffffc90003c67cc8 EFLAGS: 00010293
[   87.243803][ T4254] RAX: ffffffff81efe2ec RBX: 0000000000000000 RCX: ffff88801c7a9dc0
[   87.252848][ T4254] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   87.262176][ T4254] RBP: 0000000000003801 R08: dffffc0000000000 R09: ffffed100e2f4458
[   87.271032][ T4254] R10: ffffed100e2f4458 R11: 1ffff1100e2f4457 R12: 1ffff1100e2f4457
[   87.279317][ T4254] R13: 0000000000000000 R14: ffff8880717a22b8 R15: ffff888072c24000
[   87.288003][ T4254] FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
[   87.297251][ T4254] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.304915][ T4254] CR2: 0000564b197ed6a0 CR3: 0000000073fbb000 CR4: 00000000003506f0
[   87.313584][ T4254] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   87.322286][ T4254] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   87.330826][ T4254] Kernel panic - not syncing: Fatal exception
[   87.337376][ T4254] Kernel Offset: disabled
[   87.342183][ T4254] Rebooting in 86400 seconds..