[ 27.229165] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.247850] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 27.257501] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 27.264370] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.391183] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 27.441016] syz-executor.0 (7982) used greatest stack depth: 24376 bytes left [ 27.821024] can: request_module (can-proto-0) failed. [ 27.831289] can: request_module (can-proto-0) failed. [ 27.839103] can: request_module (can-proto-0) failed. [ 37.684449] unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Warning: Permanently added '10.128.10.0' (ECDSA) to the list of known hosts. [ 46.471164] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) [ 46.514739] ------------[ cut here ]------------ [ 46.519561] WARNING: CPU: 0 PID: 8317 at fs/udf/inode.c:1991 __udf_add_aext+0x4d1/0x6c0 [ 46.527679] Kernel panic - not syncing: panic_on_warn set ... [ 46.527679] [ 46.535016] CPU: 0 PID: 8317 Comm: syz-executor140 Not tainted 4.14.272-syzkaller #0 [ 46.542876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.552225] Call Trace: [ 46.554796] dump_stack+0x14b/0x1e7 [ 46.558420] ? __udf_add_aext+0x4d1/0x6c0 [ 46.562631] panic+0x1b0/0x358 [ 46.565799] ? add_taint.cold.4+0x11/0x11 [ 46.569927] ? __udf_add_aext+0x4d1/0x6c0 [ 46.574068] __warn.cold.7+0x25/0x25 [ 46.577757] ? __udf_add_aext+0x4d1/0x6c0 [ 46.581877] report_bug+0x1a1/0x200 [ 46.585477] ? debug_smp_processor_id+0x17/0x20 [ 46.590121] do_error_trap+0x1bd/0x310 [ 46.593981] ? math_error+0x300/0x300 [ 46.597774] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.602592] do_invalid_op+0x1b/0x20 [ 46.606285] invalid_op+0x1b/0x40 [ 46.609711] RIP: 0010:__udf_add_aext+0x4d1/0x6c0 [ 46.614438] RSP: 0018:ffff88809e9e6b90 EFLAGS: 00010287 [ 46.619778] RAX: 0000000000000000 RBX: ffff88809e9e7140 RCX: 00000000c0000200 [ 46.627020] RDX: ffff88809e9e6ccc RSI: 0000000000000001 RDI: 0000000000000000 [ 46.634268] RBP: ffff88809e9e6be0 R08: 00000000000001e8 R09: ffff8880922f3e14 [ 46.641510] R10: ffff8880922f3e17 R11: 0000000000000001 R12: ffff888089d89160 [ 46.648756] R13: 0000000000000010 R14: 00000000000001d0 R15: ffff888089d89040 [ 46.656012] udf_setup_indirect_aext+0x5d7/0x780 [ 46.660740] ? mutex_unlock+0xd/0x10 [ 46.664427] ? udf_current_aext+0x8b0/0x8b0 [ 46.668727] ? udf_new_block+0x242/0x450 [ 46.672760] ? mark_buffer_dirty+0x2e2/0x3c0 [ 46.677161] udf_add_aext+0x1aa/0x2a0 [ 46.680937] ? udf_setup_indirect_aext+0x780/0x780 [ 46.685837] ? udf_next_aext+0x1ef/0x360 [ 46.689876] ? udf_prealloc_blocks+0x1b2/0x420 [ 46.694437] inode_getblk+0x1761/0x3c90 [ 46.698385] ? lock_downgrade+0x7f0/0x7f0 [ 46.702511] ? udf_delete_aext+0x970/0x970 [ 46.706729] ? trace_hardirqs_on+0x10/0x10 [ 46.710942] ? mem_cgroup_uncharge+0xe0/0xe0 [ 46.715326] ? __lock_acquire+0x701/0x42d0 [ 46.719538] ? __lock_acquire+0x701/0x42d0 [ 46.723745] ? mem_cgroup_uncharge+0xe0/0xe0 [ 46.728126] ? trace_hardirqs_on+0x10/0x10 [ 46.732343] ? release_pages+0x7f4/0xd70 [ 46.736374] ? trace_hardirqs_on_caller+0x3bb/0x570 [ 46.741366] ? udf_clear_extent_cache+0x9a/0xd0 [ 46.746010] ? lock_acquire+0x17e/0x3e0 [ 46.749958] ? do_raw_spin_unlock+0x16a/0x250 [ 46.754430] ? _raw_spin_unlock+0x2c/0x50 [ 46.758553] udf_get_block+0x115/0x480 [ 46.762417] ? udf_block_map+0x260/0x260 [ 46.766458] ? _raw_spin_unlock+0x2c/0x50 [ 46.770582] ? create_empty_buffers+0x269/0x480 [ 46.775225] __block_write_begin_int+0x327/0x1640 [ 46.780043] ? udf_block_map+0x260/0x260 [ 46.784086] ? __breadahead_gfp+0xa0/0xa0 [ 46.788211] ? pagecache_get_page+0x22b/0x7c0 [ 46.792682] ? udf_block_map+0x260/0x260 [ 46.796721] block_write_begin+0x48/0x240 [ 46.800845] udf_write_begin+0x2f/0x90 [ 46.804704] generic_perform_write+0x227/0x450 [ 46.809265] ? filemap_page_mkwrite+0x290/0x290 [ 46.813906] ? file_update_time+0xde/0x360 [ 46.818117] ? current_time+0xa0/0xa0 [ 46.821890] ? udf_file_write_iter+0x23c/0x470 [ 46.826443] ? lock_downgrade+0x7f0/0x7f0 [ 46.830561] ? udf_file_write_iter+0x99/0x470 [ 46.835030] __generic_file_write_iter+0x205/0x590 [ 46.839933] udf_file_write_iter+0x247/0x470 [ 46.844406] __vfs_write+0x413/0x840 [ 46.848095] ? kernel_read+0x130/0x130 [ 46.851984] __kernel_write+0xe4/0x360 [ 46.855849] ? __might_sleep+0x93/0xb0 [ 46.859713] write_pipe_buf+0x14c/0x1e0 [ 46.863664] ? generic_file_read_iter+0x5b2/0x1f30 [ 46.868566] ? default_file_splice_read+0x8c0/0x8c0 [ 46.873558] __splice_from_pipe+0x2cb/0x720 [ 46.877856] ? default_file_splice_read+0x8c0/0x8c0 [ 46.882848] ? default_file_splice_read+0x8c0/0x8c0 [ 46.887838] splice_from_pipe+0xb5/0x110 [ 46.891872] ? splice_shrink_spd+0xa0/0xa0 [ 46.896083] default_file_splice_write+0x18/0x50 [ 46.900998] direct_splice_actor+0x104/0x1c0 [ 46.905381] splice_direct_to_actor+0x27c/0x750 [ 46.910037] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 46.914967] ? pipe_to_sendpage+0x420/0x420 [ 46.919263] ? do_splice_to+0x120/0x120 [ 46.923230] ? __lock_acquire+0x701/0x42d0 [ 46.927445] ? rw_verify_area+0xb8/0x2b0 [ 46.931480] do_splice_direct+0x144/0x250 [ 46.935599] ? splice_direct_to_actor+0x750/0x750 [ 46.940442] ? rcu_read_lock_sched_held+0x108/0x120 [ 46.945430] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 46.950161] do_sendfile+0x46c/0xcf0 [ 46.953862] ? do_compat_pwritev64+0x180/0x180 [ 46.958420] ? kasan_check_write+0x14/0x20 [ 46.962630] SyS_sendfile64+0x97/0x110 [ 46.966489] ? SyS_sendfile+0x120/0x120 [ 46.970435] ? do_syscall_64+0x4c/0x5b0 [ 46.974383] ? SyS_sendfile+0x120/0x120 [ 46.978348] do_syscall_64+0x1c7/0x5b0 [ 46.982209] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.987046] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 46.992207] RIP: 0033:0x7f0483013679 [ 46.995891] RSP: 002b:00007ffcf2662398 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 47.003570] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f0483013679 [ 47.010814] RDX: 0000000020000240 RSI: 0000000000000004 RDI: 0000000000000004 [ 47.018060] RBP: 00007f0482fd2e70 R08: 0000000000000000 R09: 0000000000000000 [ 47.025301] R10: 0000000000007fff R11: 0000000000000246 R12: 00007f0482fd2f00 [ 47.032545] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 47.040148] Kernel Offset: disabled [ 47.043804] Rebooting in 86400 seconds..