Warning: Permanently added '10.128.0.27' (ED25519) to the list of known hosts. executing program syzkaller login: [ 34.787770][ T4227] loop0: detected capacity change from 0 to 2048 [ 34.806241][ T4227] NILFS (loop0): nilfs_get_block (ino=15): a race condition while inserting a data block at offset=0 [ 34.809249][ T4227] ------------[ cut here ]------------ [ 34.810717][ T4227] kernel BUG at fs/buffer.c:2666! [ 34.812099][ T4227] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 34.814156][ T4227] Modules linked in: [ 34.814374][ T4228] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 34.815190][ T4227] CPU: 0 PID: 4227 Comm: syz-executor718 Not tainted 6.1.83-syzkaller #0 [ 34.820231][ T4227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 34.822963][ T4227] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 34.825024][ T4227] pc : submit_bh_wbc+0x3f4/0x468 [ 34.826323][ T4227] lr : submit_bh_wbc+0x3f4/0x468 [ 34.827627][ T4227] sp : ffff80001dcd7610 [ 34.828718][ T4227] x29: ffff80001dcd7620 x28: fffffc0003893400 x27: dfff800000000000 [ 34.830821][ T4227] x26: fffffc0003893408 x25: 0000000000000000 x24: 1fffe0001c392a91 [ 34.832984][ T4227] x23: 0000000000000000 x22: 0000000000000002 x21: 0000000000000000 [ 34.835135][ T4227] x20: ffff0000e1c95488 x19: 0000000000000004 x18: ffff80001dcd6940 [ 34.837182][ T4227] x17: 20656c696877206e x16: ffff800008303388 x15: 0000000000000000 [ 34.839361][ T4227] x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001 [ 34.841465][ T4227] x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800008b37948 [ 34.843586][ T4227] x8 : ffff0000d7cf3780 x7 : 0000000000000001 x6 : 0000000000000001 [ 34.845818][ T4227] x5 : ffff80001dcd6cf8 x4 : 0000000000000002 x3 : ffff800008b38668 [ 34.848014][ T4227] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 34.850186][ T4227] Call trace: [ 34.851039][ T4227] submit_bh_wbc+0x3f4/0x468 [ 34.852276][ T4227] __block_write_begin_int+0x83c/0x13b4 [ 34.853755][ T4227] block_write_begin+0x98/0x11c [ 34.855042][ T4227] nilfs_write_begin+0xa8/0x114 [ 34.856381][ T4227] generic_perform_write+0x278/0x55c [ 34.857859][ T4227] __generic_file_write_iter+0x168/0x388 [ 34.859353][ T4227] generic_file_write_iter+0xb8/0x2b4 [ 34.860796][ T4227] vfs_write+0x610/0x914 [ 34.861942][ T4227] ksys_write+0x15c/0x26c [ 34.863102][ T4227] __arm64_sys_write+0x7c/0x90 [ 34.864379][ T4227] invoke_syscall+0x98/0x2c0 [ 34.865595][ T4227] el0_svc_common+0x138/0x258 [ 34.866843][ T4227] do_el0_svc+0x64/0x218 [ 34.867965][ T4227] el0_svc+0x58/0x168 [ 34.869046][ T4227] el0t_64_sync_handler+0x84/0xf0 [ 34.870362][ T4227] el0t_64_sync+0x18c/0x190 [ 34.871525][ T4227] Code: 17ffffad 97e70647 d4210000 97e70645 (d4210000) [ 34.873390][ T4227] ---[ end trace 0000000000000000 ]--- [ 35.219068][ T4227] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 35.221060][ T4227] SMP: stopping secondary CPUs [ 35.222430][ T4227] Kernel Offset: disabled [ 35.223632][ T4227] CPU features: 0x00000,02070084,26017203 [ 35.225153][ T4227] Memory Limit: none [ 35.594052][ T4227] Rebooting in 86400 seconds..