[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.157' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.328470] ------------[ cut here ]------------ [ 33.334889] WARNING: CPU: 1 PID: 8103 at fs/udf/inode.c:1979 __udf_add_aext.cold+0x41/0x76 [ 33.343304] Kernel panic - not syncing: panic_on_warn set ... [ 33.343304] [ 33.350676] CPU: 1 PID: 8103 Comm: syz-executor148 Not tainted 4.19.211-syzkaller #0 [ 33.358559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 33.367917] Call Trace: [ 33.370519] dump_stack+0x1fc/0x2ef [ 33.374157] panic+0x26a/0x50e [ 33.377350] ? __warn_printk+0xf3/0xf3 [ 33.381227] ? __udf_add_aext.cold+0x41/0x76 [ 33.385615] ? __probe_kernel_read+0x130/0x1b0 [ 33.390291] ? __warn.cold+0x5/0x5a [ 33.393901] ? __warn+0xe4/0x200 [ 33.397854] ? __udf_add_aext.cold+0x41/0x76 [ 33.402244] __warn.cold+0x20/0x5a [ 33.405768] ? io_schedule_timeout+0x140/0x140 [ 33.410336] ? __udf_add_aext.cold+0x41/0x76 [ 33.414724] report_bug+0x262/0x2b0 [ 33.418346] do_error_trap+0x1d7/0x310 [ 33.422213] ? math_error+0x310/0x310 [ 33.426091] ? __irq_work_queue_local+0x101/0x160 [ 33.430917] ? irq_work_queue+0x29/0x80 [ 33.434874] ? error_entry+0x72/0xd0 [ 33.438569] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.443606] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.448430] invalid_op+0x14/0x20 [ 33.451866] RIP: 0010:__udf_add_aext.cold+0x41/0x76 [ 33.456861] Code: fa e8 b9 b1 69 f9 48 c7 c7 80 85 9a 88 e8 18 e3 fa ff 0f 0b e9 a4 1b 76 fa e8 a1 b1 69 f9 48 c7 c7 80 85 9a 88 e8 00 e3 fa ff <0f> 0b 48 8b 54 24 10 b8 ff ff 37 00 48 c1 e0 2a 48 c1 ea 03 0f b6 [ 33.475743] RSP: 0018:ffff8880b151edb8 EFLAGS: 00010282 [ 33.481085] RAX: 0000000000000024 RBX: ffff8880b151f220 RCX: 0000000000000000 [ 33.488331] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10162a3da9 [ 33.495578] RBP: ffff8880b5460670 R08: 0000000000000024 R09: 0000000000000000 [ 33.502826] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 33.510073] R13: 00000000000001d0 R14: 0000000000000010 R15: 00000000000001e8 [ 33.517423] ? vprintk_func+0x81/0x180 [ 33.521295] ? __udf_add_aext.cold+0x41/0x76 [ 33.525683] ? udf_new_tag+0x2d1/0x380 [ 33.529553] udf_setup_indirect_aext+0x504/0x7e0 [ 33.534295] ? udf_current_aext+0x900/0x900 [ 33.538612] ? udf_new_block+0x232/0x490 [ 33.542758] udf_add_aext+0x210/0x2e0 [ 33.546543] ? udf_setup_indirect_aext+0x7e0/0x7e0 [ 33.551542] ? udf_next_aext+0x2a6/0x3a0 [ 33.555596] ? udf_write_aext+0x4ff/0x860 [ 33.559727] inode_getblk+0x1984/0x3b30 [ 33.563693] ? udf_delete_aext+0xac0/0xac0 [ 33.567909] ? __lock_acquire+0x6de/0x3ff0 [ 33.572127] ? __save_stack_trace+0x72/0x190 [ 33.576531] ? __lock_acquire+0x6de/0x3ff0 [ 33.580749] ? lock_downgrade+0x720/0x720 [ 33.584876] ? lock_acquire+0x170/0x3c0 [ 33.588829] ? __bpf_address_lookup+0x330/0x330 [ 33.593492] ? lock_downgrade+0x720/0x720 [ 33.597619] ? lock_acquire+0x170/0x3c0 [ 33.601573] ? udf_get_block+0x10a/0x650 [ 33.605615] udf_get_block+0x1e1/0x650 [ 33.609480] ? udf_block_map+0x290/0x290 [ 33.613549] ? lock_downgrade+0x720/0x720 [ 33.617724] ? check_preemption_disabled+0x41/0x280 [ 33.622728] ? create_page_buffers+0x190/0x350 [ 33.627298] __block_write_begin_int+0x46c/0x17b0 [ 33.632141] ? udf_block_map+0x290/0x290 [ 33.636198] ? __breadahead_gfp+0x130/0x130 [ 33.640512] ? wait_for_stable_page+0x122/0x360 [ 33.645177] ? udf_block_map+0x290/0x290 [ 33.649224] block_write_begin+0x58/0x2e0 [ 33.653356] udf_write_begin+0x39/0xa0 [ 33.657222] ? current_time+0x13c/0x1c0 [ 33.661180] generic_perform_write+0x1f8/0x4d0 [ 33.665747] ? filemap_page_mkwrite+0x2f0/0x2f0 [ 33.670417] ? current_time+0x1c0/0x1c0 [ 33.674462] ? lock_downgrade+0x720/0x720 [ 33.678594] ? lock_acquire+0x170/0x3c0 [ 33.682552] __generic_file_write_iter+0x24b/0x610 [ 33.687466] udf_file_write_iter+0x2d4/0x4e0 [ 33.691861] ? iov_iter_init+0xb8/0x1d0 [ 33.695815] __vfs_write+0x51b/0x770 [ 33.699512] ? kernel_read+0x110/0x110 [ 33.703382] ? mark_held_locks+0xa6/0xf0 [ 33.707423] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 33.712504] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 33.717592] ? debug_check_no_obj_freed+0x201/0x490 [ 33.722593] __kernel_write+0x109/0x370 [ 33.726550] write_pipe_buf+0x153/0x1f0 [ 33.730508] ? default_file_splice_read+0xa00/0xa00 [ 33.735506] ? __put_page+0xcc/0x3a0 [ 33.739217] __splice_from_pipe+0x389/0x800 [ 33.743527] ? default_file_splice_read+0xa00/0xa00 [ 33.748539] default_file_splice_write+0xd8/0x180 [ 33.753369] ? generic_splice_sendpage+0x140/0x140 [ 33.758288] ? security_file_permission+0x1c0/0x220 [ 33.763411] ? generic_splice_sendpage+0x140/0x140 [ 33.768331] direct_splice_actor+0x115/0x160 [ 33.772724] splice_direct_to_actor+0x33f/0x8d0 [ 33.777378] ? generic_pipe_buf_nosteal+0x10/0x10 [ 33.782200] ? do_splice_to+0x160/0x160 [ 33.786157] do_splice_direct+0x1a7/0x270 [ 33.790284] ? splice_direct_to_actor+0x8d0/0x8d0 [ 33.795109] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 33.800106] do_sendfile+0x550/0xc30 [ 33.803802] ? do_compat_pwritev64+0x1b0/0x1b0 [ 33.808363] ? do_sys_ftruncate+0x410/0x560 [ 33.812667] __se_sys_sendfile64+0x147/0x160 [ 33.817053] ? __se_sys_sendfile+0x180/0x180 [ 33.821672] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 33.827034] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.832037] ? do_syscall_64+0x21/0x620 [ 33.835994] do_syscall_64+0xf9/0x620 [ 33.839784] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.844970] RIP: 0033:0x7f4d69519399 [ 33.848665] 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 c0 ff ff ff f7 d8 64 89 01 48 [ 33.867544] RSP: 002b:00007fff02f78bf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 33.875232] RAX: ffffffffffffffda RBX: 0001313041454200 RCX: 00007f4d69519399 [ 33.882486] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 [ 33.889744] RBP: 0000000000000000 R08: 00007f4d69588ec0 R09: 00007f4d69588ec0 [ 33.897173] R10: 0001000000201005 R11: 0000000000000246 R12: 00007fff02f78c20 [ 33.904429] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 33.911900] Kernel Offset: disabled [ 33.915561] Rebooting in 86400 seconds..