Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. 2021/09/29 13:37:00 fuzzer started 2021/09/29 13:37:01 connecting to host at 10.128.0.169:45367 2021/09/29 13:37:01 checking machine... 2021/09/29 13:37:01 checking revisions... 2021/09/29 13:37:01 testing simple program... syzkaller login: [ 78.511072][ T6561] chnl_net:caif_netlink_parms(): no params data found [ 78.602605][ T6561] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.613084][ T6561] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.622769][ T6561] device bridge_slave_0 entered promiscuous mode [ 78.634663][ T6561] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.642878][ T6561] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.652540][ T6561] device bridge_slave_1 entered promiscuous mode [ 78.686683][ T6561] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.699539][ T6561] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.736021][ T6561] team0: Port device team_slave_0 added [ 78.743934][ T6561] team0: Port device team_slave_1 added [ 78.773469][ T6561] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.780757][ T6561] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 78.808967][ T6561] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.823205][ T6561] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.831869][ T6561] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 78.859156][ T6561] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.898573][ T6561] device hsr_slave_0 entered promiscuous mode [ 78.905840][ T6561] device hsr_slave_1 entered promiscuous mode [ 79.008534][ T6561] ------------[ cut here ]------------ [ 79.014798][ T6561] WARNING: CPU: 1 PID: 6561 at net/core/devlink.c:5158 devlink_nl_region_notify+0x184/0x1e0 [ 79.028103][ T6561] Modules linked in: [ 79.032511][ T6561] CPU: 1 PID: 6561 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 [ 79.044531][ T6561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.056881][ T6561] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 79.063309][ T6561] Code: 38 41 b8 c0 0c 00 00 31 d2 48 89 ee 4c 89 e7 e8 72 1a 26 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e e9 f1 bb 41 fa e8 ec bb 41 fa <0f> 0b e9 f7 fe ff ff e8 e0 bb 41 fa 0f 0b eb da 4c 89 e7 e8 b4 17 [ 79.084957][ T6561] RSP: 0018:ffffc90002c1f658 EFLAGS: 00010293 [ 79.091220][ T6561] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.100385][ T6561] RDX: ffff88801b7e3900 RSI: ffffffff87344fa4 RDI: 0000000000000003 [ 79.109256][ T6561] RBP: ffff8880143aff00 R08: 0000000000000000 R09: 0000000000000000 [ 79.117854][ T6561] R10: ffffffff87344e9a R11: 0000000000000000 R12: ffff88801ab4f000 [ 79.127848][ T6561] R13: 0000000000000000 R14: 000000000000002c R15: ffff88801ab4f070 [ 79.136100][ T6561] FS: 0000555556aff400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 79.145388][ T6561] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.152137][ T6561] CR2: 00007fe6b9ecd740 CR3: 0000000069092000 CR4: 00000000003506f0 [ 79.161016][ T6561] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.169163][ T6561] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.177814][ T6561] Call Trace: [ 79.181980][ T6561] devlink_region_create+0x39f/0x4c0 [ 79.187942][ T6561] nsim_dev_probe+0x5f6/0x1150 [ 79.192916][ T6561] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 79.198789][ T6561] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 79.205868][ T6561] ? kernfs_create_link+0x1b3/0x230 [ 79.211572][ T6561] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 79.218552][ T6561] ? kernfs_put+0x31/0x50 [ 79.222921][ T6561] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 79.229710][ T6561] ? sysfs_do_create_link_sd+0xbb/0x140 [ 79.235772][ T6561] ? sysfs_create_link+0x67/0xc0 [ 79.241709][ T6561] ? nsim_bus_remove+0x20/0x20 [ 79.247299][ T6561] really_probe+0x245/0xcc0 [ 79.251862][ T6561] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 79.258289][ T6561] __driver_probe_device+0x338/0x4d0 [ 79.263745][ T6561] driver_probe_device+0x4c/0x1a0 [ 79.268964][ T6561] __device_attach_driver+0x20b/0x2f0 [ 79.274677][ T6561] ? driver_allows_async_probing+0x150/0x150 [ 79.281054][ T6561] bus_for_each_drv+0x15f/0x1e0 [ 79.286639][ T6561] ? bus_for_each_dev+0x1d0/0x1d0 [ 79.292059][ T6561] ? rcu_read_lock_sched_held+0x3a/0x70 [ 79.297836][ T6561] __device_attach+0x228/0x4a0 [ 79.302721][ T6561] ? device_driver_attach+0x210/0x210 [ 79.308640][ T6561] ? kobject_uevent_env+0x2bb/0x1650 [ 79.314077][ T6561] bus_probe_device+0x1e4/0x290 [ 79.319360][ T6561] device_add+0xc35/0x21b0 [ 79.323928][ T6561] ? lockdep_init_map_type+0x2c3/0x7b0 [ 79.329822][ T6561] ? lockdep_init_map_type+0x2c3/0x7b0 [ 79.335459][ T6561] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 79.343068][ T6561] ? __raw_spin_lock_init+0x36/0x110 [ 79.348774][ T6561] new_device_store+0x48b/0x770 [ 79.353849][ T6561] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 79.361621][ T6561] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 79.368155][ T6561] ? sysfs_file_ops+0x1c0/0x1c0 [ 79.373073][ T6561] bus_attr_store+0x72/0xa0 [ 79.377936][ T6561] ? bus_attr_show+0x90/0x90 [ 79.382849][ T6561] sysfs_kf_write+0x110/0x160 [ 79.387854][ T6561] kernfs_fop_write_iter+0x342/0x500 [ 79.393571][ T6561] new_sync_write+0x429/0x660 [ 79.399361][ T6561] ? new_sync_read+0x6e0/0x6e0 [ 79.404525][ T6561] ? lock_release+0x720/0x720 [ 79.409512][ T6561] vfs_write+0x7cf/0xae0 [ 79.414219][ T6561] ksys_write+0x12d/0x250 [ 79.419200][ T6561] ? __ia32_sys_read+0xb0/0xb0 [ 79.423997][ T6561] ? syscall_enter_from_user_mode+0x21/0x70 [ 79.430345][ T6561] do_syscall_64+0x35/0xb0 [ 79.434888][ T6561] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 79.441310][ T6561] RIP: 0033:0x7f5e202bc3ef [ 79.445858][ T6561] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 [ 79.466343][ T6561] RSP: 002b:00007fff0b0e0550 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 79.475711][ T6561] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5e202bc3ef [ 79.484459][ T6561] RDX: 0000000000000003 RSI: 00007fff0b0e05a0 RDI: 0000000000000004 [ 79.492710][ T6561] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007fff0b0e04f0 [ 79.501221][ T6561] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f5e20363971 [ 79.509434][ T6561] R13: 00007fff0b0e05a0 R14: 0000000000000000 R15: 00007fff0b0e0c70 [ 79.517777][ T6561] Kernel panic - not syncing: panic_on_warn set ... [ 79.524527][ T6561] CPU: 0 PID: 6561 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 [ 79.533220][ T6561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.543283][ T6561] Call Trace: [ 79.546571][ T6561] dump_stack_lvl+0xcd/0x134 [ 79.551169][ T6561] panic+0x2b0/0x6dd [ 79.555430][ T6561] ? __warn_printk+0xf3/0xf3 [ 79.560030][ T6561] ? __warn.cold+0x1a/0x44 [ 79.564468][ T6561] ? devlink_nl_region_notify+0x184/0x1e0 [ 79.570311][ T6561] __warn.cold+0x35/0x44 [ 79.574593][ T6561] ? devlink_nl_region_notify+0x184/0x1e0 [ 79.580423][ T6561] report_bug+0x1bd/0x210 [ 79.588766][ T6561] handle_bug+0x3c/0x60 [ 79.593049][ T6561] exc_invalid_op+0x14/0x40 [ 79.597747][ T6561] asm_exc_invalid_op+0x12/0x20 [ 79.602694][ T6561] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 79.609133][ T6561] Code: 38 41 b8 c0 0c 00 00 31 d2 48 89 ee 4c 89 e7 e8 72 1a 26 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e e9 f1 bb 41 fa e8 ec bb 41 fa <0f> 0b e9 f7 fe ff ff e8 e0 bb 41 fa 0f 0b eb da 4c 89 e7 e8 b4 17 [ 79.629532][ T6561] RSP: 0018:ffffc90002c1f658 EFLAGS: 00010293 [ 79.635801][ T6561] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.643867][ T6561] RDX: ffff88801b7e3900 RSI: ffffffff87344fa4 RDI: 0000000000000003 [ 79.651940][ T6561] RBP: ffff8880143aff00 R08: 0000000000000000 R09: 0000000000000000 [ 79.660188][ T6561] R10: ffffffff87344e9a R11: 0000000000000000 R12: ffff88801ab4f000 [ 79.668244][ T6561] R13: 0000000000000000 R14: 000000000000002c R15: ffff88801ab4f070 [ 79.676594][ T6561] ? devlink_nl_region_notify+0x7a/0x1e0 [ 79.682453][ T6561] ? devlink_nl_region_notify+0x184/0x1e0 [ 79.688630][ T6561] ? devlink_nl_region_notify+0x184/0x1e0 [ 79.695256][ T6561] devlink_region_create+0x39f/0x4c0 [ 79.701298][ T6561] nsim_dev_probe+0x5f6/0x1150 [ 79.706110][ T6561] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 79.711899][ T6561] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 79.718177][ T6561] ? kernfs_create_link+0x1b3/0x230 [ 79.723405][ T6561] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 79.729659][ T6561] ? kernfs_put+0x31/0x50 [ 79.733995][ T6561] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 79.740336][ T6561] ? sysfs_do_create_link_sd+0xbb/0x140 [ 79.746006][ T6561] ? sysfs_create_link+0x67/0xc0 [ 79.751496][ T6561] ? nsim_bus_remove+0x20/0x20 [ 79.756307][ T6561] really_probe+0x245/0xcc0 [ 79.760821][ T6561] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 79.767076][ T6561] __driver_probe_device+0x338/0x4d0 [ 79.772374][ T6561] driver_probe_device+0x4c/0x1a0 [ 79.777971][ T6561] __device_attach_driver+0x20b/0x2f0 [ 79.783379][ T6561] ? driver_allows_async_probing+0x150/0x150 [ 79.789460][ T6561] bus_for_each_drv+0x15f/0x1e0 [ 79.794360][ T6561] ? bus_for_each_dev+0x1d0/0x1d0 [ 79.799928][ T6561] ? rcu_read_lock_sched_held+0x3a/0x70 [ 79.805510][ T6561] __device_attach+0x228/0x4a0 [ 79.810369][ T6561] ? device_driver_attach+0x210/0x210 [ 79.815761][ T6561] ? kobject_uevent_env+0x2bb/0x1650 [ 79.821155][ T6561] bus_probe_device+0x1e4/0x290 [ 79.826021][ T6561] device_add+0xc35/0x21b0 [ 79.830642][ T6561] ? lockdep_init_map_type+0x2c3/0x7b0 [ 79.836194][ T6561] ? lockdep_init_map_type+0x2c3/0x7b0 [ 79.841746][ T6561] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 79.848173][ T6561] ? __raw_spin_lock_init+0x36/0x110 [ 79.853734][ T6561] new_device_store+0x48b/0x770 [ 79.858600][ T6561] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 79.864424][ T6561] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 79.870253][ T6561] ? sysfs_file_ops+0x1c0/0x1c0 [ 79.875109][ T6561] bus_attr_store+0x72/0xa0 [ 79.879720][ T6561] ? bus_attr_show+0x90/0x90 [ 79.884503][ T6561] sysfs_kf_write+0x110/0x160 [ 79.889220][ T6561] kernfs_fop_write_iter+0x342/0x500 [ 79.895013][ T6561] new_sync_write+0x429/0x660 [ 79.900153][ T6561] ? new_sync_read+0x6e0/0x6e0 [ 79.905198][ T6561] ? lock_release+0x720/0x720 [ 79.909999][ T6561] vfs_write+0x7cf/0xae0 [ 79.914358][ T6561] ksys_write+0x12d/0x250 [ 79.918791][ T6561] ? __ia32_sys_read+0xb0/0xb0 [ 79.923572][ T6561] ? syscall_enter_from_user_mode+0x21/0x70 [ 79.929592][ T6561] do_syscall_64+0x35/0xb0 [ 79.934126][ T6561] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 79.940028][ T6561] RIP: 0033:0x7f5e202bc3ef [ 79.944449][ T6561] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 [ 79.964499][ T6561] RSP: 002b:00007fff0b0e0550 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 79.972935][ T6561] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5e202bc3ef [ 79.981882][ T6561] RDX: 0000000000000003 RSI: 00007fff0b0e05a0 RDI: 0000000000000004 [ 79.989903][ T6561] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007fff0b0e04f0 [ 79.997975][ T6561] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f5e20363971 [ 80.005947][ T6561] R13: 00007fff0b0e05a0 R14: 0000000000000000 R15: 00007fff0b0e0c70 [ 80.014606][ T6561] Kernel Offset: disabled [ 80.019582][ T6561] Rebooting in 86400 seconds..