Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.80' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.926842] netlink: 4 bytes leftover after parsing attributes in process `syz-executor210'. [ 32.935652] FAULT_INJECTION: forcing a failure. [ 32.935652] name failslab, interval 1, probability 0, space 0, times 1 [ 32.947242] CPU: 0 PID: 8088 Comm: syz-executor210 Not tainted 4.19.211-syzkaller #0 [ 32.955118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 32.964449] Call Trace: [ 32.967021] dump_stack+0x1fc/0x2ef [ 32.970631] should_fail.cold+0xa/0xf [ 32.974416] ? setup_fault_attr+0x200/0x200 [ 32.978719] ? mark_held_locks+0xa6/0xf0 [ 32.982775] ? _raw_spin_lock_irqsave+0x94/0xc0 [ 32.987435] __should_failslab+0x115/0x180 [ 32.991651] should_failslab+0x5/0x10 [ 32.995432] kmem_cache_alloc_trace+0x46/0x380 [ 32.999996] batadv_v_ogm_init+0xbb/0x430 [ 33.004137] ? batadv_v_ogm_packet_recv+0xd50/0xd50 [ 33.009142] ? __lockdep_init_map+0x100/0x5a0 [ 33.013620] batadv_v_mesh_init+0x11/0x20 [ 33.017750] batadv_mesh_init+0x448/0x690 [ 33.021900] batadv_softif_init_late+0xad7/0xd90 [ 33.026634] ? batadv_get_strings+0x40/0x40 [ 33.030938] ? batadv_get_strings+0x40/0x40 [ 33.035240] register_netdevice+0x2dc/0x10f0 [ 33.039650] ? unregister_netdev+0x20/0x20 [ 33.043877] ? rtnl_create_link+0x145/0xa40 [ 33.048182] rtnl_newlink+0x13b5/0x15c0 [ 33.052138] ? rtnl_getlink+0x620/0x620 [ 33.056091] ? __lock_acquire+0x6de/0x3ff0 [ 33.060309] ? get_reg+0x1f0/0x1f0 [ 33.063829] ? mark_held_locks+0xf0/0xf0 [ 33.067869] ? unwind_next_frame+0xeee/0x1400 [ 33.072347] ? mark_held_locks+0xf0/0xf0 [ 33.076396] ? unwind_next_frame+0xeee/0x1400 [ 33.080879] ? __lock_acquire+0x6de/0x3ff0 [ 33.085131] ? get_reg+0x1f0/0x1f0 [ 33.088657] ? is_bpf_text_address+0xd5/0x1b0 [ 33.093142] ? mark_held_locks+0xf0/0xf0 [ 33.097194] ? unwind_next_frame+0xeee/0x1400 [ 33.101677] ? __save_stack_trace+0x72/0x190 [ 33.106072] ? deref_stack_reg+0x134/0x1d0 [ 33.110292] ? get_reg+0x176/0x1f0 [ 33.113817] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 33.119684] ? deref_stack_reg+0x1d0/0x1d0 [ 33.123915] ? __lock_acquire+0x6de/0x3ff0 [ 33.128149] ? __lock_acquire+0x6de/0x3ff0 [ 33.132367] ? mark_held_locks+0xf0/0xf0 [ 33.136411] ? get_reg+0x1f0/0x1f0 [ 33.139935] ? unwind_next_frame+0xeee/0x1400 [ 33.144427] ? mutex_trylock+0x1a0/0x1a0 [ 33.148473] ? rtnetlink_rcv_msg+0x3a0/0xb80 [ 33.152879] ? rtnl_getlink+0x620/0x620 [ 33.156943] rtnetlink_rcv_msg+0x453/0xb80 [ 33.161168] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.165662] ? __netlink_lookup+0x3fc/0x730 [ 33.169968] ? lock_downgrade+0x720/0x720 [ 33.174108] ? check_preemption_disabled+0x41/0x280 [ 33.179110] netlink_rcv_skb+0x160/0x440 [ 33.183156] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.187632] ? netlink_ack+0xae0/0xae0 [ 33.191506] netlink_unicast+0x4d5/0x690 [ 33.195549] ? netlink_sendskb+0x110/0x110 [ 33.199774] ? _copy_from_iter_full+0x229/0x7c0 [ 33.204426] ? __phys_addr_symbol+0x2c/0x70 [ 33.208746] ? __check_object_size+0x17b/0x3e0 [ 33.213322] netlink_sendmsg+0x6c3/0xc50 [ 33.217369] ? aa_af_perm+0x230/0x230 [ 33.221160] ? nlmsg_notify+0x1f0/0x1f0 [ 33.225121] ? kernel_recvmsg+0x220/0x220 [ 33.229279] ? nlmsg_notify+0x1f0/0x1f0 [ 33.233247] sock_sendmsg+0xc3/0x120 [ 33.236963] ___sys_sendmsg+0x7bb/0x8e0 [ 33.240924] ? check_preemption_disabled+0x41/0x280 [ 33.245938] ? copy_msghdr_from_user+0x440/0x440 [ 33.250682] ? proc_fail_nth_write+0x95/0x1d0 [ 33.255159] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.260073] ? mark_held_locks+0xf0/0xf0 [ 33.264118] ? __vfs_write+0xff/0x770 [ 33.267911] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.272820] ? common_file_perm+0x4e5/0x850 [ 33.277121] ? kernel_read+0x110/0x110 [ 33.280995] ? vm_insert_page+0x9c0/0x9c0 [ 33.285122] ? fsnotify+0x84e/0xe10 [ 33.288728] ? vfs_write+0x3d7/0x540 [ 33.292426] ? __fdget+0x1a0/0x230 [ 33.295948] __x64_sys_sendmsg+0x132/0x220 [ 33.300163] ? __sys_sendmsg+0x1b0/0x1b0 [ 33.304203] ? vfs_write+0x393/0x540 [ 33.307910] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 33.313254] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.318249] ? do_syscall_64+0x21/0x620 [ 33.322202] do_syscall_64+0xf9/0x620 [ 33.325998] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.331174] RIP: 0033:0x7f04c5fe80f9 [ 33.334869] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 [ 33.353843] RSP: 002b:00007ffc416e8718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.361535] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f04c5fe80f9 [ 33.368796] RDX: 0000000000000000 RSI: 00000000200004c0 RDI: 0000000000000003 [ 33.376051] RBP: 00007ffc416e8730 R08: 0000000000000001 R09: 0000000000000001 [ 33.383320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 33.390586] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 33.399520] ------------[ cut here ]------------ [ 33.404285] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) [ 33.414663] WARNING: CPU: 0 PID: 8088 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 [ 33.423410] Kernel panic - not syncing: panic_on_warn set ... [ 33.423410] [ 33.430783] CPU: 0 PID: 8088 Comm: syz-executor210 Not tainted 4.19.211-syzkaller #0 [ 33.438653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 33.447986] Call Trace: [ 33.450558] dump_stack+0x1fc/0x2ef [ 33.454166] panic+0x26a/0x50e [ 33.457366] ? __warn_printk+0xf3/0xf3 [ 33.461243] ? debug_print_object+0x160/0x250 [ 33.465733] ? __probe_kernel_read+0x130/0x1b0 [ 33.470303] ? __warn.cold+0x5/0x5a [ 33.473917] ? __warn+0xe4/0x200 [ 33.477308] ? debug_print_object+0x160/0x250 [ 33.481876] __warn.cold+0x20/0x5a [ 33.485400] ? debug_print_object+0x160/0x250 [ 33.489882] report_bug+0x262/0x2b0 [ 33.493582] do_error_trap+0x1d7/0x310 [ 33.497455] ? math_error+0x310/0x310 [ 33.501239] ? irq_work_claim+0xa6/0xc0 [ 33.505203] ? irq_work_queue+0x29/0x80 [ 33.509170] ? error_entry+0x72/0xd0 [ 33.512867] ? trace_hardirqs_off_caller+0x2c/0x210 [ 33.517862] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.522695] invalid_op+0x14/0x20 [ 33.526136] RIP: 0010:debug_print_object+0x160/0x250 [ 33.531320] Code: dd 20 f1 b3 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 20 f1 b3 88 48 c7 c7 40 e5 b3 88 e8 65 92 7b 04 <0f> 0b 83 05 73 e6 af 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 33.550225] RSP: 0018:ffff888095046c08 EFLAGS: 00010086 [ 33.555573] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 33.562827] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012a08d73 [ 33.570074] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 33.577322] R10: 0000000000000005 R11: ffffffff8c66501b R12: ffffffff89f90a40 [ 33.584572] R13: ffffffff815313f0 R14: ffff88809812b4d8 R15: 1ffff11012a08d8c [ 33.591840] ? calc_wheel_index+0x230/0x230 [ 33.596150] ? vprintk_func+0x81/0x180 [ 33.600040] ? debug_print_object+0x160/0x250 [ 33.604528] debug_object_assert_init+0x1f0/0x2e0 [ 33.609354] ? save_trace+0xd6/0x290 [ 33.613061] ? debug_object_free+0x380/0x380 [ 33.617496] del_timer+0x6d/0x100 [ 33.621032] ? run_timer_softirq+0x670/0x670 [ 33.625447] ? trace_hardirqs_off+0x64/0x200 [ 33.629931] try_to_grab_pending+0x2b6/0x6f0 [ 33.634335] __cancel_work_timer+0xa6/0x590 [ 33.638723] ? mark_held_locks+0xa6/0xf0 [ 33.642764] ? try_to_grab_pending+0x6f0/0x6f0 [ 33.647334] ? batadv_mesh_free+0x6d/0x170 [ 33.651567] ? mark_held_locks+0xa6/0xf0 [ 33.655612] ? __local_bh_enable_ip+0x159/0x270 [ 33.660266] batadv_v_ogm_free+0x1f/0xd0 [ 33.664309] batadv_mesh_free+0x75/0x170 [ 33.668350] batadv_mesh_init+0x5b7/0x690 [ 33.672493] batadv_softif_init_late+0xad7/0xd90 [ 33.677244] ? batadv_get_strings+0x40/0x40 [ 33.681551] ? batadv_get_strings+0x40/0x40 [ 33.685878] register_netdevice+0x2dc/0x10f0 [ 33.690274] ? unregister_netdev+0x20/0x20 [ 33.694498] ? rtnl_create_link+0x145/0xa40 [ 33.698810] rtnl_newlink+0x13b5/0x15c0 [ 33.702774] ? rtnl_getlink+0x620/0x620 [ 33.706743] ? __lock_acquire+0x6de/0x3ff0 [ 33.710983] ? get_reg+0x1f0/0x1f0 [ 33.714505] ? mark_held_locks+0xf0/0xf0 [ 33.718555] ? unwind_next_frame+0xeee/0x1400 [ 33.723037] ? mark_held_locks+0xf0/0xf0 [ 33.727089] ? unwind_next_frame+0xeee/0x1400 [ 33.731565] ? __lock_acquire+0x6de/0x3ff0 [ 33.735784] ? get_reg+0x1f0/0x1f0 [ 33.739313] ? is_bpf_text_address+0xd5/0x1b0 [ 33.743793] ? mark_held_locks+0xf0/0xf0 [ 33.747842] ? unwind_next_frame+0xeee/0x1400 [ 33.752320] ? __save_stack_trace+0x72/0x190 [ 33.756707] ? deref_stack_reg+0x134/0x1d0 [ 33.760929] ? get_reg+0x176/0x1f0 [ 33.764486] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 33.770359] ? deref_stack_reg+0x1d0/0x1d0 [ 33.774575] ? __lock_acquire+0x6de/0x3ff0 [ 33.778793] ? __lock_acquire+0x6de/0x3ff0 [ 33.783020] ? mark_held_locks+0xf0/0xf0 [ 33.787063] ? get_reg+0x1f0/0x1f0 [ 33.790587] ? unwind_next_frame+0xeee/0x1400 [ 33.795078] ? mutex_trylock+0x1a0/0x1a0 [ 33.799121] ? rtnetlink_rcv_msg+0x3a0/0xb80 [ 33.803521] ? rtnl_getlink+0x620/0x620 [ 33.807479] rtnetlink_rcv_msg+0x453/0xb80 [ 33.811716] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.816301] ? __netlink_lookup+0x3fc/0x730 [ 33.820610] ? lock_downgrade+0x720/0x720 [ 33.824749] ? check_preemption_disabled+0x41/0x280 [ 33.829765] netlink_rcv_skb+0x160/0x440 [ 33.833833] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.838315] ? netlink_ack+0xae0/0xae0 [ 33.842193] netlink_unicast+0x4d5/0x690 [ 33.846259] ? netlink_sendskb+0x110/0x110 [ 33.850475] ? _copy_from_iter_full+0x229/0x7c0 [ 33.855129] ? __phys_addr_symbol+0x2c/0x70 [ 33.859436] ? __check_object_size+0x17b/0x3e0 [ 33.864005] netlink_sendmsg+0x6c3/0xc50 [ 33.868056] ? aa_af_perm+0x230/0x230 [ 33.871845] ? nlmsg_notify+0x1f0/0x1f0 [ 33.875802] ? kernel_recvmsg+0x220/0x220 [ 33.880176] ? nlmsg_notify+0x1f0/0x1f0 [ 33.884161] sock_sendmsg+0xc3/0x120 [ 33.887871] ___sys_sendmsg+0x7bb/0x8e0 [ 33.891847] ? check_preemption_disabled+0x41/0x280 [ 33.896860] ? copy_msghdr_from_user+0x440/0x440 [ 33.901789] ? proc_fail_nth_write+0x95/0x1d0 [ 33.906285] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.911200] ? mark_held_locks+0xf0/0xf0 [ 33.915245] ? __vfs_write+0xff/0x770 [ 33.919110] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.924019] ? common_file_perm+0x4e5/0x850 [ 33.928321] ? kernel_read+0x110/0x110 [ 33.932190] ? vm_insert_page+0x9c0/0x9c0 [ 33.936318] ? fsnotify+0x84e/0xe10 [ 33.939925] ? vfs_write+0x3d7/0x540 [ 33.943622] ? __fdget+0x1a0/0x230 [ 33.947154] __x64_sys_sendmsg+0x132/0x220 [ 33.951374] ? __sys_sendmsg+0x1b0/0x1b0 [ 33.955418] ? vfs_write+0x393/0x540 [ 33.959125] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 33.964469] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.969464] ? do_syscall_64+0x21/0x620 [ 33.973417] do_syscall_64+0xf9/0x620 [ 33.977293] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.982476] RIP: 0033:0x7f04c5fe80f9 [ 33.986170] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 [ 34.005062] RSP: 002b:00007ffc416e8718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.012761] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f04c5fe80f9 [ 34.020108] RDX: 0000000000000000 RSI: 00000000200004c0 RDI: 0000000000000003 [ 34.027362] RBP: 00007ffc416e8730 R08: 0000000000000001 R09: 0000000000000001 [ 34.034613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.041969] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 34.049570] Kernel Offset: disabled [ 34.053234] Rebooting in 86400 seconds..