Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.245' (ECDSA) to the list of known hosts. 2021/09/28 14:45:01 fuzzer started 2021/09/28 14:45:01 connecting to host at 10.128.0.169:46359 2021/09/28 14:45:01 checking machine... 2021/09/28 14:45:01 checking revisions... 2021/09/28 14:45:01 testing simple program... syzkaller login: [ 70.263814][ T6591] chnl_net:caif_netlink_parms(): no params data found [ 70.339256][ T6591] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.347188][ T6591] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.357408][ T6591] device bridge_slave_0 entered promiscuous mode [ 70.367530][ T6591] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.375106][ T6591] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.382868][ T6591] device bridge_slave_1 entered promiscuous mode [ 70.416832][ T6591] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.428244][ T6591] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.463278][ T6591] team0: Port device team_slave_0 added [ 70.471220][ T6591] team0: Port device team_slave_1 added [ 70.501932][ T6591] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.510286][ T6591] 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. [ 70.537413][ T6591] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.550453][ T6591] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.558022][ T6591] 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. [ 70.585779][ T6591] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.623167][ T6591] device hsr_slave_0 entered promiscuous mode [ 70.630236][ T6591] device hsr_slave_1 entered promiscuous mode [ 70.718406][ T6591] ------------[ cut here ]------------ [ 70.724183][ T6591] WARNING: CPU: 0 PID: 6591 at net/core/devlink.c:5158 devlink_nl_region_notify+0x184/0x1e0 [ 70.736152][ T6591] Modules linked in: [ 70.740075][ T6591] CPU: 1 PID: 6591 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 [ 70.750024][ T6591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.760800][ T6591] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 70.768146][ T6591] 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 [ 70.789807][ T6591] RSP: 0018:ffffc90002d6f658 EFLAGS: 00010293 [ 70.796856][ T6591] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 70.805835][ T6591] RDX: ffff88807b428000 RSI: ffffffff87344fa4 RDI: 0000000000000003 [ 70.813918][ T6591] RBP: ffff88801db84680 R08: 0000000000000000 R09: 0000000000000000 [ 70.823037][ T6591] R10: ffffffff87344e9a R11: 0000000000000000 R12: ffff88801ddf8000 [ 70.831912][ T6591] R13: 0000000000000000 R14: 000000000000002c R15: ffff88801ddf8070 [ 70.840473][ T6591] FS: 00005555559a6400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 70.850470][ T6591] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.857841][ T6591] CR2: 00007f121249b000 CR3: 0000000069472000 CR4: 00000000003506e0 [ 70.866786][ T6591] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.875001][ T6591] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.883138][ T6591] Call Trace: [ 70.887570][ T6591] devlink_region_create+0x39f/0x4c0 [ 70.892936][ T6591] nsim_dev_probe+0x5f6/0x1150 [ 70.897980][ T6591] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 70.903594][ T6591] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.910883][ T6591] ? kernfs_create_link+0x1b3/0x230 [ 70.916872][ T6591] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.923154][ T6591] ? kernfs_put+0x31/0x50 [ 70.927704][ T6591] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.934026][ T6591] ? sysfs_do_create_link_sd+0xbb/0x140 [ 70.940665][ T6591] ? sysfs_create_link+0x67/0xc0 [ 70.945956][ T6591] ? nsim_bus_remove+0x20/0x20 [ 70.950759][ T6591] really_probe+0x245/0xcc0 [ 70.955430][ T6591] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.961856][ T6591] __driver_probe_device+0x338/0x4d0 [ 70.967225][ T6591] driver_probe_device+0x4c/0x1a0 [ 70.972264][ T6591] __device_attach_driver+0x20b/0x2f0 [ 70.978069][ T6591] ? driver_allows_async_probing+0x150/0x150 [ 70.984092][ T6591] bus_for_each_drv+0x15f/0x1e0 [ 70.989072][ T6591] ? bus_for_each_dev+0x1d0/0x1d0 [ 70.994136][ T6591] ? rcu_read_lock_sched_held+0x3a/0x70 [ 70.999781][ T6591] __device_attach+0x228/0x4a0 [ 71.004640][ T6591] ? device_driver_attach+0x210/0x210 [ 71.010142][ T6591] ? kobject_uevent_env+0x2bb/0x1650 [ 71.015534][ T6591] bus_probe_device+0x1e4/0x290 [ 71.020407][ T6591] device_add+0xc35/0x21b0 [ 71.024901][ T6591] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.030637][ T6591] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.036254][ T6591] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 71.042684][ T6591] ? __raw_spin_lock_init+0x36/0x110 [ 71.048720][ T6591] new_device_store+0x48b/0x770 [ 71.053606][ T6591] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.059614][ T6591] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.065550][ T6591] ? sysfs_file_ops+0x1c0/0x1c0 [ 71.070516][ T6591] bus_attr_store+0x72/0xa0 [ 71.075556][ T6591] ? bus_attr_show+0x90/0x90 [ 71.080198][ T6591] sysfs_kf_write+0x110/0x160 [ 71.085018][ T6591] kernfs_fop_write_iter+0x342/0x500 [ 71.090473][ T6591] new_sync_write+0x429/0x660 [ 71.095280][ T6591] ? new_sync_read+0x6e0/0x6e0 [ 71.100069][ T6591] ? lock_release+0x720/0x720 [ 71.104834][ T6591] vfs_write+0x7cf/0xae0 [ 71.109306][ T6591] ksys_write+0x12d/0x250 [ 71.113807][ T6591] ? __ia32_sys_read+0xb0/0xb0 [ 71.118819][ T6591] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.124850][ T6591] do_syscall_64+0x35/0xb0 [ 71.129294][ T6591] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.135312][ T6591] RIP: 0033:0x7fea6904f3ef [ 71.139846][ T6591] 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 [ 71.159636][ T6591] RSP: 002b:00007ffe9ae167e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 71.168151][ T6591] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fea6904f3ef [ 71.176274][ T6591] RDX: 0000000000000003 RSI: 00007ffe9ae16830 RDI: 0000000000000004 [ 71.184363][ T6591] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffe9ae16780 [ 71.192690][ T6591] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fea690f6971 [ 71.204167][ T6591] R13: 00007ffe9ae16830 R14: 0000000000000000 R15: 00007ffe9ae16f00 [ 71.212284][ T6591] Kernel panic - not syncing: panic_on_warn set ... [ 71.218970][ T6591] CPU: 0 PID: 6591 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 [ 71.227638][ T6591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.237860][ T6591] Call Trace: [ 71.241135][ T6591] dump_stack_lvl+0xcd/0x134 [ 71.245721][ T6591] panic+0x2b0/0x6dd [ 71.249610][ T6591] ? __warn_printk+0xf3/0xf3 [ 71.254325][ T6591] ? __warn.cold+0x1a/0x44 [ 71.258736][ T6591] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.264617][ T6591] __warn.cold+0x35/0x44 [ 71.268880][ T6591] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.274633][ T6591] report_bug+0x1bd/0x210 [ 71.278986][ T6591] handle_bug+0x3c/0x60 [ 71.283158][ T6591] exc_invalid_op+0x14/0x40 [ 71.287668][ T6591] asm_exc_invalid_op+0x12/0x20 [ 71.292539][ T6591] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 71.298890][ T6591] 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 [ 71.318703][ T6591] RSP: 0018:ffffc90002d6f658 EFLAGS: 00010293 [ 71.324775][ T6591] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 71.332742][ T6591] RDX: ffff88807b428000 RSI: ffffffff87344fa4 RDI: 0000000000000003 [ 71.340827][ T6591] RBP: ffff88801db84680 R08: 0000000000000000 R09: 0000000000000000 [ 71.348991][ T6591] R10: ffffffff87344e9a R11: 0000000000000000 R12: ffff88801ddf8000 [ 71.356967][ T6591] R13: 0000000000000000 R14: 000000000000002c R15: ffff88801ddf8070 [ 71.364949][ T6591] ? devlink_nl_region_notify+0x7a/0x1e0 [ 71.370600][ T6591] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.376415][ T6591] ? devlink_nl_region_notify+0x184/0x1e0 [ 71.382136][ T6591] devlink_region_create+0x39f/0x4c0 [ 71.387522][ T6591] nsim_dev_probe+0x5f6/0x1150 [ 71.392481][ T6591] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 71.398074][ T6591] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.404338][ T6591] ? kernfs_create_link+0x1b3/0x230 [ 71.409554][ T6591] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.415814][ T6591] ? kernfs_put+0x31/0x50 [ 71.420159][ T6591] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.426402][ T6591] ? sysfs_do_create_link_sd+0xbb/0x140 [ 71.432039][ T6591] ? sysfs_create_link+0x67/0xc0 [ 71.436982][ T6591] ? nsim_bus_remove+0x20/0x20 [ 71.441749][ T6591] really_probe+0x245/0xcc0 [ 71.446252][ T6591] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.452513][ T6591] __driver_probe_device+0x338/0x4d0 [ 71.457827][ T6591] driver_probe_device+0x4c/0x1a0 [ 71.462980][ T6591] __device_attach_driver+0x20b/0x2f0 [ 71.468358][ T6591] ? driver_allows_async_probing+0x150/0x150 [ 71.474439][ T6591] bus_for_each_drv+0x15f/0x1e0 [ 71.479305][ T6591] ? bus_for_each_dev+0x1d0/0x1d0 [ 71.484388][ T6591] ? rcu_read_lock_sched_held+0x3a/0x70 [ 71.489963][ T6591] __device_attach+0x228/0x4a0 [ 71.494734][ T6591] ? device_driver_attach+0x210/0x210 [ 71.500205][ T6591] ? kobject_uevent_env+0x2bb/0x1650 [ 71.505501][ T6591] bus_probe_device+0x1e4/0x290 [ 71.510369][ T6591] device_add+0xc35/0x21b0 [ 71.514788][ T6591] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.520242][ T6591] ? lockdep_init_map_type+0x2c3/0x7b0 [ 71.525710][ T6591] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 71.531954][ T6591] ? __raw_spin_lock_init+0x36/0x110 [ 71.537256][ T6591] new_device_store+0x48b/0x770 [ 71.542110][ T6591] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.547930][ T6591] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 71.553744][ T6591] ? sysfs_file_ops+0x1c0/0x1c0 [ 71.558858][ T6591] bus_attr_store+0x72/0xa0 [ 71.563363][ T6591] ? bus_attr_show+0x90/0x90 [ 71.567954][ T6591] sysfs_kf_write+0x110/0x160 [ 71.572640][ T6591] kernfs_fop_write_iter+0x342/0x500 [ 71.577933][ T6591] new_sync_write+0x429/0x660 [ 71.582700][ T6591] ? new_sync_read+0x6e0/0x6e0 [ 71.587474][ T6591] ? lock_release+0x720/0x720 [ 71.592170][ T6591] vfs_write+0x7cf/0xae0 [ 71.596422][ T6591] ksys_write+0x12d/0x250 [ 71.600856][ T6591] ? __ia32_sys_read+0xb0/0xb0 [ 71.605622][ T6591] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.611523][ T6591] do_syscall_64+0x35/0xb0 [ 71.615943][ T6591] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.621838][ T6591] RIP: 0033:0x7fea6904f3ef [ 71.626250][ T6591] 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 [ 71.646151][ T6591] RSP: 002b:00007ffe9ae167e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 71.654794][ T6591] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fea6904f3ef [ 71.662785][ T6591] RDX: 0000000000000003 RSI: 00007ffe9ae16830 RDI: 0000000000000004 [ 71.671193][ T6591] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffe9ae16780 [ 71.679161][ T6591] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fea690f6971 [ 71.687502][ T6591] R13: 00007ffe9ae16830 R14: 0000000000000000 R15: 00007ffe9ae16f00 [ 71.696127][ T6591] Kernel Offset: disabled [ 71.700655][ T6591] Rebooting in 86400 seconds..