Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.143' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.912816] FAULT_INJECTION: forcing a failure. [ 32.912816] name failslab, interval 1, probability 0, space 0, times 1 [ 32.924173] CPU: 0 PID: 8122 Comm: syz-executor287 Not tainted 4.19.211-syzkaller #0 [ 32.932052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.941386] Call Trace: [ 32.943962] dump_stack+0x1fc/0x2ef [ 32.947572] should_fail.cold+0xa/0xf [ 32.951353] ? setup_fault_attr+0x200/0x200 [ 32.955669] ? mark_held_locks+0xa6/0xf0 [ 32.959713] ? _raw_spin_lock_irqsave+0x94/0xc0 [ 32.964362] __should_failslab+0x115/0x180 [ 32.968581] should_failslab+0x5/0x10 [ 32.972361] kmem_cache_alloc_trace+0x46/0x380 [ 32.976926] batadv_v_ogm_init+0xbb/0x430 [ 32.981054] ? batadv_v_ogm_packet_recv+0xd50/0xd50 [ 32.986051] ? __lockdep_init_map+0x100/0x5a0 [ 32.990528] batadv_v_mesh_init+0x11/0x20 [ 32.994684] batadv_mesh_init+0x448/0x690 [ 32.998817] batadv_softif_init_late+0xad7/0xd90 [ 33.003553] ? batadv_get_strings+0x40/0x40 [ 33.007855] ? batadv_get_strings+0x40/0x40 [ 33.012158] register_netdevice+0x2dc/0x10f0 [ 33.016550] ? unregister_netdev+0x20/0x20 [ 33.020763] ? rtnl_create_link+0x145/0xa40 [ 33.025066] rtnl_newlink+0x13b5/0x15c0 [ 33.029024] ? rtnl_getlink+0x620/0x620 [ 33.032983] ? __lock_acquire+0x6de/0x3ff0 [ 33.037205] ? get_reg+0x1f0/0x1f0 [ 33.040732] ? mark_held_locks+0xf0/0xf0 [ 33.044776] ? unwind_next_frame+0xeee/0x1400 [ 33.049258] ? mark_held_locks+0xf0/0xf0 [ 33.053304] ? unwind_next_frame+0xeee/0x1400 [ 33.057783] ? __lock_acquire+0x6de/0x3ff0 [ 33.062001] ? get_reg+0x1f0/0x1f0 [ 33.065532] ? is_bpf_text_address+0xd5/0x1b0 [ 33.070008] ? mark_held_locks+0xf0/0xf0 [ 33.074048] ? unwind_next_frame+0xeee/0x1400 [ 33.078526] ? __save_stack_trace+0x72/0x190 [ 33.082950] ? deref_stack_reg+0x134/0x1d0 [ 33.087174] ? get_reg+0x176/0x1f0 [ 33.090795] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 33.096667] ? deref_stack_reg+0x1d0/0x1d0 [ 33.100894] ? __lock_acquire+0x6de/0x3ff0 [ 33.105115] ? __lock_acquire+0x6de/0x3ff0 [ 33.109335] ? mark_held_locks+0xf0/0xf0 [ 33.113378] ? get_reg+0x1f0/0x1f0 [ 33.116915] ? unwind_next_frame+0xeee/0x1400 [ 33.121417] ? mutex_trylock+0x1a0/0x1a0 [ 33.125465] ? rtnetlink_rcv_msg+0x3a0/0xb80 [ 33.129862] ? rtnl_getlink+0x620/0x620 [ 33.133823] rtnetlink_rcv_msg+0x453/0xb80 [ 33.138046] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.142524] ? __netlink_lookup+0x3fc/0x730 [ 33.146828] ? lock_downgrade+0x720/0x720 [ 33.150956] ? check_preemption_disabled+0x41/0x280 [ 33.155956] netlink_rcv_skb+0x160/0x440 [ 33.159999] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.164473] ? netlink_ack+0xae0/0xae0 [ 33.168345] netlink_unicast+0x4d5/0x690 [ 33.172389] ? netlink_sendskb+0x110/0x110 [ 33.176604] ? _copy_from_iter_full+0x229/0x7c0 [ 33.181256] ? __phys_addr_symbol+0x2c/0x70 [ 33.185563] ? __check_object_size+0x17b/0x3e0 [ 33.190127] netlink_sendmsg+0x6c3/0xc50 [ 33.194184] ? aa_af_perm+0x230/0x230 [ 33.197964] ? nlmsg_notify+0x1f0/0x1f0 [ 33.201913] ? kernel_recvmsg+0x220/0x220 [ 33.206137] ? nlmsg_notify+0x1f0/0x1f0 [ 33.210092] sock_sendmsg+0xc3/0x120 [ 33.213787] ___sys_sendmsg+0x7bb/0x8e0 [ 33.217744] ? check_preemption_disabled+0x41/0x280 [ 33.222737] ? copy_msghdr_from_user+0x440/0x440 [ 33.227477] ? proc_fail_nth_write+0x95/0x1d0 [ 33.231967] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.236880] ? debug_check_no_obj_freed+0x201/0x490 [ 33.241880] ? __vfs_write+0xff/0x770 [ 33.245669] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.250581] ? common_file_perm+0x4e5/0x850 [ 33.254881] ? kernel_read+0x110/0x110 [ 33.258749] ? trace_hardirqs_off+0x64/0x200 [ 33.263137] ? fsnotify+0x84e/0xe10 [ 33.266746] ? vfs_write+0x3d7/0x540 [ 33.270444] ? __fdget+0x1a0/0x230 [ 33.273968] __x64_sys_sendmsg+0x132/0x220 [ 33.278181] ? __sys_sendmsg+0x1b0/0x1b0 [ 33.282222] ? vfs_write+0x393/0x540 [ 33.285920] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 33.291266] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.296263] ? do_syscall_64+0x21/0x620 [ 33.300217] do_syscall_64+0xf9/0x620 [ 33.303999] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.309169] RIP: 0033:0x7fb386f26809 [ 33.312863] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 [ 33.331744] RSP: 002b:00007ffe56f1b7d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.339530] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb386f26809 [ 33.346780] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 33.354037] RBP: 00007ffe56f1b7e0 R08: 0000000000000001 R09: 00007fb386ee0039 [ 33.361375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 33.368643] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.378311] ------------[ cut here ]------------ [ 33.383085] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) [ 33.393466] WARNING: CPU: 0 PID: 8122 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 [ 33.402219] Kernel panic - not syncing: panic_on_warn set ... [ 33.402219] [ 33.409588] CPU: 0 PID: 8122 Comm: syz-executor287 Not tainted 4.19.211-syzkaller #0 [ 33.417467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.426800] Call Trace: [ 33.429376] dump_stack+0x1fc/0x2ef [ 33.432987] panic+0x26a/0x50e [ 33.436168] ? __warn_printk+0xf3/0xf3 [ 33.440049] ? debug_print_object+0x160/0x250 [ 33.444526] ? __probe_kernel_read+0x130/0x1b0 [ 33.449097] ? __warn.cold+0x5/0x5a [ 33.452703] ? __warn+0xe4/0x200 [ 33.456049] ? debug_print_object+0x160/0x250 [ 33.460527] __warn.cold+0x20/0x5a [ 33.464046] ? debug_print_object+0x160/0x250 [ 33.468521] report_bug+0x262/0x2b0 [ 33.472131] do_error_trap+0x1d7/0x310 [ 33.475999] ? math_error+0x310/0x310 [ 33.479783] ? irq_work_claim+0xa6/0xc0 [ 33.483738] ? irq_work_queue+0x29/0x80 [ 33.487693] ? error_entry+0x72/0xd0 [ 33.491387] ? trace_hardirqs_off_caller+0x2c/0x210 [ 33.496393] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.501224] invalid_op+0x14/0x20 [ 33.504775] RIP: 0010:debug_print_object+0x160/0x250 [ 33.509857] 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 [ 33.528739] RSP: 0018:ffff88809425ec08 EFLAGS: 00010086 [ 33.534084] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 33.541336] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed101284bd73 [ 33.548586] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 33.555855] R10: 0000000000000005 R11: ffffffff8c66501b R12: ffffffff89f90a40 [ 33.563107] R13: ffffffff815313f0 R14: ffff8880b16e16d8 R15: 1ffff1101284bd8c [ 33.570364] ? calc_wheel_index+0x230/0x230 [ 33.574668] ? vprintk_func+0x81/0x180 [ 33.578542] ? debug_print_object+0x160/0x250 [ 33.583022] debug_object_assert_init+0x1f0/0x2e0 [ 33.587846] ? save_trace+0xd6/0x290 [ 33.591541] ? debug_object_free+0x380/0x380 [ 33.595940] del_timer+0x6d/0x100 [ 33.599374] ? run_timer_softirq+0x670/0x670 [ 33.603769] ? trace_hardirqs_off+0x64/0x200 [ 33.608159] try_to_grab_pending+0x2b6/0x6f0 [ 33.612557] __cancel_work_timer+0xa6/0x590 [ 33.616866] ? mark_held_locks+0xa6/0xf0 [ 33.620906] ? try_to_grab_pending+0x6f0/0x6f0 [ 33.625467] ? batadv_mesh_free+0x6d/0x170 [ 33.629686] ? mark_held_locks+0xa6/0xf0 [ 33.633726] ? __local_bh_enable_ip+0x159/0x270 [ 33.638380] batadv_v_ogm_free+0x1f/0xd0 [ 33.642423] batadv_mesh_free+0x75/0x170 [ 33.646464] batadv_mesh_init+0x5b7/0x690 [ 33.650593] batadv_softif_init_late+0xad7/0xd90 [ 33.655332] ? batadv_get_strings+0x40/0x40 [ 33.659635] ? batadv_get_strings+0x40/0x40 [ 33.663938] register_netdevice+0x2dc/0x10f0 [ 33.668330] ? unregister_netdev+0x20/0x20 [ 33.672545] ? rtnl_create_link+0x145/0xa40 [ 33.676849] rtnl_newlink+0x13b5/0x15c0 [ 33.680808] ? rtnl_getlink+0x620/0x620 [ 33.684770] ? __lock_acquire+0x6de/0x3ff0 [ 33.689006] ? get_reg+0x1f0/0x1f0 [ 33.692534] ? mark_held_locks+0xf0/0xf0 [ 33.696576] ? unwind_next_frame+0xeee/0x1400 [ 33.701060] ? mark_held_locks+0xf0/0xf0 [ 33.705106] ? unwind_next_frame+0xeee/0x1400 [ 33.709601] ? __lock_acquire+0x6de/0x3ff0 [ 33.713818] ? get_reg+0x1f0/0x1f0 [ 33.717339] ? is_bpf_text_address+0xd5/0x1b0 [ 33.721819] ? mark_held_locks+0xf0/0xf0 [ 33.725860] ? unwind_next_frame+0xeee/0x1400 [ 33.730335] ? __save_stack_trace+0x72/0x190 [ 33.734722] ? deref_stack_reg+0x134/0x1d0 [ 33.738939] ? get_reg+0x176/0x1f0 [ 33.742458] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 33.748326] ? deref_stack_reg+0x1d0/0x1d0 [ 33.752542] ? __lock_acquire+0x6de/0x3ff0 [ 33.756760] ? __lock_acquire+0x6de/0x3ff0 [ 33.760976] ? mark_held_locks+0xf0/0xf0 [ 33.765027] ? get_reg+0x1f0/0x1f0 [ 33.768548] ? unwind_next_frame+0xeee/0x1400 [ 33.773039] ? mutex_trylock+0x1a0/0x1a0 [ 33.777081] ? rtnetlink_rcv_msg+0x3a0/0xb80 [ 33.781476] ? rtnl_getlink+0x620/0x620 [ 33.785433] rtnetlink_rcv_msg+0x453/0xb80 [ 33.789653] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.794128] ? __netlink_lookup+0x3fc/0x730 [ 33.798433] ? lock_downgrade+0x720/0x720 [ 33.802561] ? check_preemption_disabled+0x41/0x280 [ 33.807562] netlink_rcv_skb+0x160/0x440 [ 33.811608] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.816083] ? netlink_ack+0xae0/0xae0 [ 33.820043] netlink_unicast+0x4d5/0x690 [ 33.824088] ? netlink_sendskb+0x110/0x110 [ 33.828301] ? _copy_from_iter_full+0x229/0x7c0 [ 33.832959] ? __phys_addr_symbol+0x2c/0x70 [ 33.837267] ? __check_object_size+0x17b/0x3e0 [ 33.841832] netlink_sendmsg+0x6c3/0xc50 [ 33.845877] ? aa_af_perm+0x230/0x230 [ 33.849666] ? nlmsg_notify+0x1f0/0x1f0 [ 33.853621] ? kernel_recvmsg+0x220/0x220 [ 33.857766] ? nlmsg_notify+0x1f0/0x1f0 [ 33.861722] sock_sendmsg+0xc3/0x120 [ 33.865414] ___sys_sendmsg+0x7bb/0x8e0 [ 33.869373] ? check_preemption_disabled+0x41/0x280 [ 33.874459] ? copy_msghdr_from_user+0x440/0x440 [ 33.879432] ? proc_fail_nth_write+0x95/0x1d0 [ 33.884347] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.889261] ? debug_check_no_obj_freed+0x201/0x490 [ 33.894262] ? __vfs_write+0xff/0x770 [ 33.898042] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.902953] ? common_file_perm+0x4e5/0x850 [ 33.907257] ? kernel_read+0x110/0x110 [ 33.911127] ? trace_hardirqs_off+0x64/0x200 [ 33.915517] ? fsnotify+0x84e/0xe10 [ 33.919129] ? vfs_write+0x3d7/0x540 [ 33.922826] ? __fdget+0x1a0/0x230 [ 33.926350] __x64_sys_sendmsg+0x132/0x220 [ 33.930565] ? __sys_sendmsg+0x1b0/0x1b0 [ 33.934604] ? vfs_write+0x393/0x540 [ 33.938306] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 33.943653] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.948650] ? do_syscall_64+0x21/0x620 [ 33.952605] do_syscall_64+0xf9/0x620 [ 33.956391] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.961560] RIP: 0033:0x7fb386f26809 [ 33.965255] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 [ 33.984139] RSP: 002b:00007ffe56f1b7d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.991826] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb386f26809 [ 33.999073] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 34.006325] RBP: 00007ffe56f1b7e0 R08: 0000000000000001 R09: 00007fb386ee0039 [ 34.013748] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.020997] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.028681] Kernel Offset: disabled [ 34.032346] Rebooting in 86400 seconds..