Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. 2021/09/29 14:07:57 fuzzer started 2021/09/29 14:07:57 connecting to host at 10.128.0.169:37209 2021/09/29 14:07:57 checking machine... 2021/09/29 14:07:57 checking revisions... 2021/09/29 14:07:57 testing simple program... syzkaller login: [ 70.604901][ T6551] chnl_net:caif_netlink_parms(): no params data found [ 70.683811][ T6551] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.692197][ T6551] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.702150][ T6551] device bridge_slave_0 entered promiscuous mode [ 70.712523][ T6551] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.720119][ T6551] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.729030][ T6551] device bridge_slave_1 entered promiscuous mode [ 70.761240][ T6551] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.772752][ T6551] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.808903][ T6551] team0: Port device team_slave_0 added [ 70.818046][ T6551] team0: Port device team_slave_1 added [ 70.845347][ T6551] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.853179][ T6551] 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. [ 70.880951][ T6551] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.894281][ T6551] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.901711][ T6551] 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. [ 70.929615][ T6551] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.966889][ T6551] device hsr_slave_0 entered promiscuous mode [ 70.974834][ T6551] device hsr_slave_1 entered promiscuous mode [ 71.061549][ T6551] ------------[ cut here ]------------ [ 71.067736][ T6551] WARNING: CPU: 1 PID: 6551 at net/core/devlink.c:5158 devlink_nl_region_notify+0x184/0x1e0 [ 71.081547][ T6551] Modules linked in: [ 71.086078][ T6551] CPU: 1 PID: 6551 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 [ 71.097236][ T6551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.108541][ T6551] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 71.116037][ T6551] 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 01 bb 41 fa e8 fc ba 41 fa <0f> 0b e9 f7 fe ff ff e8 f0 ba 41 fa 0f 0b eb da 4c 89 e7 e8 c4 16 [ 71.136941][ T6551] RSP: 0018:ffffc90002d7f658 EFLAGS: 00010293 [ 71.143176][ T6551] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 71.152273][ T6551] RDX: ffff888024590000 RSI: ffffffff87345094 RDI: 0000000000000003 [ 71.161007][ T6551] RBP: ffff88801ce99d00 R08: 0000000000000000 R09: 0000000000000000 [ 71.169525][ T6551] R10: ffffffff87344f8a R11: 0000000000000000 R12: ffff888019d7b000 [ 71.178700][ T6551] R13: 0000000000000000 R14: 000000000000002c R15: ffff888019d7b070 [ 71.188400][ T6551] FS: 0000555556732400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 71.198718][ T6551] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.205932][ T6551] CR2: 00007f3348fd1740 CR3: 0000000068b83000 CR4: 00000000003506f0 [ 71.214491][ T6551] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.223976][ T6551] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.233488][ T6551] Call Trace: [ 71.237324][ T6551] devlink_region_create+0x39f/0x4c0 [ 71.242909][ T6551] nsim_dev_probe+0x5f6/0x1150 [ 71.248612][ T6551] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 71.254739][ T6551] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.261618][ T6551] ? kernfs_create_link+0x1b3/0x230 [ 71.267151][ T6551] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.273967][ T6551] ? kernfs_put+0x31/0x50 [ 71.278507][ T6551] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.285405][ T6551] ? sysfs_do_create_link_sd+0xbb/0x140 [ 71.291420][ T6551] ? sysfs_create_link+0x67/0xc0 [ 71.296701][ T6551] ? nsim_bus_remove+0x20/0x20 [ 71.301993][ T6551] really_probe+0x245/0xcc0 [ 71.306638][ T6551] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.313857][ T6551] __driver_probe_device+0x338/0x4d0 [ 71.319832][ T6551] driver_probe_device+0x4c/0x1a0 [ 71.325401][ T6551] __device_attach_driver+0x20b/0x2f0 [ 71.332624][ T6551] ? driver_allows_async_probing+0x150/0x150 [ 71.338870][ T6551] bus_for_each_drv+0x15f/0x1e0 [ 71.344734][ T6551] ? bus_for_each_dev+0x1d0/0x1d0 [ 71.350661][ T6551] ? rcu_read_lock_sched_held+0x3a/0x70 [ 71.356711][ T6551] __device_attach+0x228/0x4a0 [ 71.362086][ T6551] ? device_driver_attach+0x210/0x210 [ 71.368081][ T6551] ? kobject_uevent_env+0x2bb/0x1650 [ 71.373869][ T6551] bus_probe_device+0x1e4/0x290 [ 71.378760][ T6551] device_add+0xc35/0x21b0 [ 71.383872][ T6551] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.389656][ T6551] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.395783][ T6551] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 71.402755][ T6551] ? __raw_spin_lock_init+0x36/0x110 [ 71.408395][ T6551] new_device_store+0x48b/0x770 [ 71.413549][ T6551] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.419418][ T6551] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.425545][ T6551] ? sysfs_file_ops+0x1c0/0x1c0 [ 71.430695][ T6551] bus_attr_store+0x72/0xa0 [ 71.435315][ T6551] ? bus_attr_show+0x90/0x90 [ 71.440181][ T6551] sysfs_kf_write+0x110/0x160 [ 71.445095][ T6551] kernfs_fop_write_iter+0x342/0x500 [ 71.450908][ T6551] new_sync_write+0x429/0x660 [ 71.456244][ T6551] ? new_sync_read+0x6e0/0x6e0 [ 71.461248][ T6551] ? lock_release+0x720/0x720 [ 71.465988][ T6551] vfs_write+0x7cf/0xae0 [ 71.470353][ T6551] ksys_write+0x12d/0x250 [ 71.474707][ T6551] ? __ia32_sys_read+0xb0/0xb0 [ 71.479487][ T6551] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.485800][ T6551] do_syscall_64+0x35/0xb0 [ 71.490354][ T6551] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.496755][ T6551] RIP: 0033:0x7f5be74d53ef [ 71.501420][ T6551] 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 [ 71.523360][ T6551] RSP: 002b:00007ffdcb4e2080 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 71.532595][ T6551] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5be74d53ef [ 71.540997][ T6551] RDX: 0000000000000003 RSI: 00007ffdcb4e20d0 RDI: 0000000000000004 [ 71.549238][ T6551] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffdcb4e2020 [ 71.557593][ T6551] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f5be757c971 [ 71.565768][ T6551] R13: 00007ffdcb4e20d0 R14: 0000000000000000 R15: 00007ffdcb4e27a0 [ 71.574164][ T6551] Kernel panic - not syncing: panic_on_warn set ... [ 71.581140][ T6551] CPU: 0 PID: 6551 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 [ 71.589903][ T6551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.600324][ T6551] Call Trace: [ 71.603953][ T6551] dump_stack_lvl+0xcd/0x134 [ 71.608646][ T6551] panic+0x2b0/0x6dd [ 71.612808][ T6551] ? __warn_printk+0xf3/0xf3 [ 71.617492][ T6551] ? __warn.cold+0x1a/0x44 [ 71.622060][ T6551] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.628195][ T6551] __warn.cold+0x35/0x44 [ 71.632560][ T6551] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.638735][ T6551] report_bug+0x1bd/0x210 [ 71.643092][ T6551] handle_bug+0x3c/0x60 [ 71.647265][ T6551] exc_invalid_op+0x14/0x40 [ 71.651852][ T6551] asm_exc_invalid_op+0x12/0x20 [ 71.656878][ T6551] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 71.663295][ T6551] 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 01 bb 41 fa e8 fc ba 41 fa <0f> 0b e9 f7 fe ff ff e8 f0 ba 41 fa 0f 0b eb da 4c 89 e7 e8 c4 16 [ 71.683827][ T6551] RSP: 0018:ffffc90002d7f658 EFLAGS: 00010293 [ 71.690103][ T6551] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 71.698689][ T6551] RDX: ffff888024590000 RSI: ffffffff87345094 RDI: 0000000000000003 [ 71.706975][ T6551] RBP: ffff88801ce99d00 R08: 0000000000000000 R09: 0000000000000000 [ 71.715771][ T6551] R10: ffffffff87344f8a R11: 0000000000000000 R12: ffff888019d7b000 [ 71.724710][ T6551] R13: 0000000000000000 R14: 000000000000002c R15: ffff888019d7b070 [ 71.733801][ T6551] ? devlink_nl_region_notify+0x7a/0x1e0 [ 71.739738][ T6551] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.745610][ T6551] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.751528][ T6551] devlink_region_create+0x39f/0x4c0 [ 71.757337][ T6551] nsim_dev_probe+0x5f6/0x1150 [ 71.762202][ T6551] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 71.768012][ T6551] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.774835][ T6551] ? kernfs_create_link+0x1b3/0x230 [ 71.780605][ T6551] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.787277][ T6551] ? kernfs_put+0x31/0x50 [ 71.791632][ T6551] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.798547][ T6551] ? sysfs_do_create_link_sd+0xbb/0x140 [ 71.804433][ T6551] ? sysfs_create_link+0x67/0xc0 [ 71.811409][ T6551] ? nsim_bus_remove+0x20/0x20 [ 71.816194][ T6551] really_probe+0x245/0xcc0 [ 71.820989][ T6551] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.827943][ T6551] __driver_probe_device+0x338/0x4d0 [ 71.833641][ T6551] driver_probe_device+0x4c/0x1a0 [ 71.838713][ T6551] __device_attach_driver+0x20b/0x2f0 [ 71.844352][ T6551] ? driver_allows_async_probing+0x150/0x150 [ 71.850351][ T6551] bus_for_each_drv+0x15f/0x1e0 [ 71.855332][ T6551] ? bus_for_each_dev+0x1d0/0x1d0 [ 71.860463][ T6551] ? rcu_read_lock_sched_held+0x3a/0x70 [ 71.866108][ T6551] __device_attach+0x228/0x4a0 [ 71.871137][ T6551] ? device_driver_attach+0x210/0x210 [ 71.876709][ T6551] ? kobject_uevent_env+0x2bb/0x1650 [ 71.882216][ T6551] bus_probe_device+0x1e4/0x290 [ 71.887080][ T6551] device_add+0xc35/0x21b0 [ 71.891709][ T6551] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.897167][ T6551] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.902782][ T6551] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 71.909081][ T6551] ? __raw_spin_lock_init+0x36/0x110 [ 71.915046][ T6551] new_device_store+0x48b/0x770 [ 71.920129][ T6551] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.926228][ T6551] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.932763][ T6551] ? sysfs_file_ops+0x1c0/0x1c0 [ 71.937707][ T6551] bus_attr_store+0x72/0xa0 [ 71.942275][ T6551] ? bus_attr_show+0x90/0x90 [ 71.946866][ T6551] sysfs_kf_write+0x110/0x160 [ 71.951556][ T6551] kernfs_fop_write_iter+0x342/0x500 [ 71.956973][ T6551] new_sync_write+0x429/0x660 [ 71.961878][ T6551] ? new_sync_read+0x6e0/0x6e0 [ 71.966900][ T6551] ? lock_release+0x720/0x720 [ 71.971865][ T6551] vfs_write+0x7cf/0xae0 [ 71.976244][ T6551] ksys_write+0x12d/0x250 [ 71.980591][ T6551] ? __ia32_sys_read+0xb0/0xb0 [ 71.985471][ T6551] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.991629][ T6551] do_syscall_64+0x35/0xb0 [ 71.997096][ T6551] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.003390][ T6551] RIP: 0033:0x7f5be74d53ef [ 72.007989][ T6551] 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 [ 72.028321][ T6551] RSP: 002b:00007ffdcb4e2080 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 72.036950][ T6551] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5be74d53ef [ 72.045172][ T6551] RDX: 0000000000000003 RSI: 00007ffdcb4e20d0 RDI: 0000000000000004 [ 72.053167][ T6551] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffdcb4e2020 [ 72.062149][ T6551] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f5be757c971 [ 72.070889][ T6551] R13: 00007ffdcb4e20d0 R14: 0000000000000000 R15: 00007ffdcb4e27a0 [ 72.079752][ T6551] Kernel Offset: disabled [ 72.084344][ T6551] Rebooting in 86400 seconds..