[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.56' (ECDSA) to the list of known hosts. 2021/09/28 11:42:29 fuzzer started 2021/09/28 11:42:29 connecting to host at 10.128.0.169:40397 2021/09/28 11:42:29 checking machine... 2021/09/28 11:42:29 checking revisions... 2021/09/28 11:42:29 testing simple program... syzkaller login: [ 69.412609][ T6555] chnl_net:caif_netlink_parms(): no params data found [ 69.490438][ T6555] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.497776][ T6555] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.506058][ T6555] device bridge_slave_0 entered promiscuous mode [ 69.515440][ T6555] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.522965][ T6555] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.531927][ T6555] device bridge_slave_1 entered promiscuous mode [ 69.562644][ T6555] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.574662][ T6555] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.608668][ T6555] team0: Port device team_slave_0 added [ 69.617193][ T6555] team0: Port device team_slave_1 added [ 69.645321][ T6555] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.653585][ T6555] 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. [ 69.680820][ T6555] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.694566][ T6555] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.701698][ T6555] 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. [ 69.728885][ T6555] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.766296][ T6555] device hsr_slave_0 entered promiscuous mode [ 69.773124][ T6555] device hsr_slave_1 entered promiscuous mode [ 69.858265][ T6555] ------------[ cut here ]------------ [ 69.864088][ T6555] WARNING: CPU: 0 PID: 6555 at net/core/devlink.c:5158 devlink_nl_region_notify+0x184/0x1e0 [ 69.874312][ T6555] Modules linked in: [ 69.878268][ T6555] CPU: 0 PID: 6555 Comm: syz-executor.0 Not tainted 5.15.0-rc3-next-20210928-syzkaller #0 [ 69.888238][ T6555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.898397][ T6555] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 69.904794][ T6555] Code: 38 41 b8 c0 0c 00 00 31 d2 48 89 ee 4c 89 e7 e8 62 0b 26 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e e9 21 3c 45 fa e8 1c 3c 45 fa <0f> 0b e9 f7 fe ff ff e8 10 3c 45 fa 0f 0b eb da 4c 89 e7 e8 f4 69 [ 69.925013][ T6555] RSP: 0018:ffffc90002cd7658 EFLAGS: 00010293 [ 69.931285][ T6555] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 69.939477][ T6555] RDX: ffff88801cf3d700 RSI: ffffffff87310754 RDI: 0000000000000003 [ 69.947592][ T6555] RBP: ffff88807f577380 R08: 0000000000000000 R09: 0000000000000000 [ 69.956756][ T6555] R10: ffffffff8731064a R11: 0000000000000000 R12: ffff888079b41000 [ 69.964849][ T6555] R13: 0000000000000000 R14: 000000000000002c R15: ffff888079b41070 [ 69.972925][ T6555] FS: 0000555556450400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 69.981955][ T6555] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.988710][ T6555] CR2: 00007f04665ed080 CR3: 0000000068667000 CR4: 00000000003506f0 [ 69.996870][ T6555] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.004859][ T6555] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.012995][ T6555] Call Trace: [ 70.016463][ T6555] [ 70.019550][ T6555] devlink_region_create+0x39f/0x4c0 [ 70.024945][ T6555] nsim_dev_probe+0x5f6/0x1150 [ 70.029806][ T6555] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 70.035482][ T6555] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.041973][ T6555] ? kernfs_create_link+0x1b3/0x230 [ 70.047331][ T6555] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.053704][ T6555] ? kernfs_put+0x31/0x50 [ 70.058508][ T6555] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.065276][ T6555] ? sysfs_do_create_link_sd+0xbb/0x140 [ 70.071272][ T6555] ? sysfs_create_link+0x67/0xc0 [ 70.077150][ T6555] ? nsim_bus_remove+0x20/0x20 [ 70.083487][ T6555] really_probe+0x245/0xcc0 [ 70.088080][ T6555] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.094539][ T6555] __driver_probe_device+0x338/0x4d0 [ 70.099925][ T6555] driver_probe_device+0x4c/0x1a0 [ 70.105172][ T6555] __device_attach_driver+0x20b/0x2f0 [ 70.110808][ T6555] ? driver_allows_async_probing+0x150/0x150 [ 70.116981][ T6555] bus_for_each_drv+0x15f/0x1e0 [ 70.121878][ T6555] ? bus_for_each_dev+0x1d0/0x1d0 [ 70.126992][ T6555] ? rcu_read_lock_sched_held+0x3a/0x70 [ 70.132912][ T6555] __device_attach+0x228/0x4a0 [ 70.137840][ T6555] ? device_driver_attach+0x210/0x210 [ 70.143330][ T6555] ? kobject_uevent_env+0x2bb/0x1650 [ 70.148969][ T6555] bus_probe_device+0x1e4/0x290 [ 70.154009][ T6555] device_add+0xc35/0x21b0 [ 70.158618][ T6555] ? lockdep_init_map_type+0x2c3/0x7b0 [ 70.164094][ T6555] ? lockdep_init_map_type+0x2c3/0x7b0 [ 70.169742][ T6555] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 70.176277][ T6555] ? __raw_spin_lock_init+0x36/0x110 [ 70.181596][ T6555] new_device_store+0x48b/0x770 [ 70.186558][ T6555] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 70.192487][ T6555] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 70.198371][ T6555] ? sysfs_file_ops+0x1c0/0x1c0 [ 70.203231][ T6555] bus_attr_store+0x72/0xa0 [ 70.207891][ T6555] ? bus_attr_show+0x90/0x90 [ 70.212607][ T6555] sysfs_kf_write+0x110/0x160 [ 70.217565][ T6555] kernfs_fop_write_iter+0x342/0x500 [ 70.223261][ T6555] new_sync_write+0x429/0x660 [ 70.228021][ T6555] ? new_sync_read+0x6e0/0x6e0 [ 70.232820][ T6555] ? lock_release+0x720/0x720 [ 70.237591][ T6555] vfs_write+0x7cf/0xae0 [ 70.241965][ T6555] ksys_write+0x12d/0x250 [ 70.246469][ T6555] ? __ia32_sys_read+0xb0/0xb0 [ 70.251382][ T6555] ? syscall_enter_from_user_mode+0x21/0x70 [ 70.257464][ T6555] do_syscall_64+0x35/0xb0 [ 70.262037][ T6555] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.268071][ T6555] RIP: 0033:0x7f2a8f7963ef [ 70.272674][ T6555] 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 [ 70.292764][ T6555] RSP: 002b:00007ffd8505e000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 70.301317][ T6555] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2a8f7963ef [ 70.309381][ T6555] RDX: 0000000000000003 RSI: 00007ffd8505e050 RDI: 0000000000000004 [ 70.317449][ T6555] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffd8505dfa0 [ 70.325703][ T6555] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f2a8f83d971 [ 70.334223][ T6555] R13: 00007ffd8505e050 R14: 0000000000000000 R15: 00007ffd8505e720 [ 70.342338][ T6555] [ 70.345643][ T6555] Kernel panic - not syncing: panic_on_warn set ... [ 70.352328][ T6555] CPU: 0 PID: 6555 Comm: syz-executor.0 Not tainted 5.15.0-rc3-next-20210928-syzkaller #0 [ 70.362230][ T6555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.372687][ T6555] Call Trace: [ 70.376068][ T6555] [ 70.379081][ T6555] dump_stack_lvl+0xcd/0x134 [ 70.383789][ T6555] panic+0x2b0/0x6dd [ 70.388474][ T6555] ? __warn_printk+0xf3/0xf3 [ 70.393091][ T6555] ? __warn.cold+0x1a/0x44 [ 70.397884][ T6555] ? devlink_nl_region_notify+0x184/0x1e0 [ 70.403817][ T6555] __warn.cold+0x35/0x44 [ 70.408165][ T6555] ? devlink_nl_region_notify+0x184/0x1e0 [ 70.414161][ T6555] report_bug+0x1bd/0x210 [ 70.418509][ T6555] handle_bug+0x3c/0x60 [ 70.423208][ T6555] exc_invalid_op+0x14/0x40 [ 70.427818][ T6555] asm_exc_invalid_op+0x12/0x20 [ 70.432676][ T6555] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 70.443928][ T6555] Code: 38 41 b8 c0 0c 00 00 31 d2 48 89 ee 4c 89 e7 e8 62 0b 26 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e e9 21 3c 45 fa e8 1c 3c 45 fa <0f> 0b e9 f7 fe ff ff e8 10 3c 45 fa 0f 0b eb da 4c 89 e7 e8 f4 69 [ 70.463717][ T6555] RSP: 0018:ffffc90002cd7658 EFLAGS: 00010293 [ 70.469786][ T6555] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 70.477793][ T6555] RDX: ffff88801cf3d700 RSI: ffffffff87310754 RDI: 0000000000000003 [ 70.486099][ T6555] RBP: ffff88807f577380 R08: 0000000000000000 R09: 0000000000000000 [ 70.494267][ T6555] R10: ffffffff8731064a R11: 0000000000000000 R12: ffff888079b41000 [ 70.502255][ T6555] R13: 0000000000000000 R14: 000000000000002c R15: ffff888079b41070 [ 70.510473][ T6555] ? devlink_nl_region_notify+0x7a/0x1e0 [ 70.516140][ T6555] ? devlink_nl_region_notify+0x184/0x1e0 [ 70.521876][ T6555] ? devlink_nl_region_notify+0x184/0x1e0 [ 70.527615][ T6555] devlink_region_create+0x39f/0x4c0 [ 70.532940][ T6555] nsim_dev_probe+0x5f6/0x1150 [ 70.537889][ T6555] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 70.543444][ T6555] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.549803][ T6555] ? kernfs_create_link+0x1b3/0x230 [ 70.555128][ T6555] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.561597][ T6555] ? kernfs_put+0x31/0x50 [ 70.566109][ T6555] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.572920][ T6555] ? sysfs_do_create_link_sd+0xbb/0x140 [ 70.579092][ T6555] ? sysfs_create_link+0x67/0xc0 [ 70.584064][ T6555] ? nsim_bus_remove+0x20/0x20 [ 70.588851][ T6555] really_probe+0x245/0xcc0 [ 70.593387][ T6555] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.599897][ T6555] __driver_probe_device+0x338/0x4d0 [ 70.605376][ T6555] driver_probe_device+0x4c/0x1a0 [ 70.610492][ T6555] __device_attach_driver+0x20b/0x2f0 [ 70.616444][ T6555] ? driver_allows_async_probing+0x150/0x150 [ 70.622442][ T6555] bus_for_each_drv+0x15f/0x1e0 [ 70.627650][ T6555] ? bus_for_each_dev+0x1d0/0x1d0 [ 70.632697][ T6555] ? rcu_read_lock_sched_held+0x3a/0x70 [ 70.638251][ T6555] __device_attach+0x228/0x4a0 [ 70.643027][ T6555] ? device_driver_attach+0x210/0x210 [ 70.648507][ T6555] ? kobject_uevent_env+0x2bb/0x1650 [ 70.653813][ T6555] bus_probe_device+0x1e4/0x290 [ 70.658936][ T6555] device_add+0xc35/0x21b0 [ 70.663363][ T6555] ? lockdep_init_map_type+0x2c3/0x7b0 [ 70.669150][ T6555] ? lockdep_init_map_type+0x2c3/0x7b0 [ 70.674704][ T6555] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 70.681068][ T6555] ? __raw_spin_lock_init+0x36/0x110 [ 70.686380][ T6555] new_device_store+0x48b/0x770 [ 70.691330][ T6555] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 70.697238][ T6555] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 70.703049][ T6555] ? sysfs_file_ops+0x1c0/0x1c0 [ 70.707946][ T6555] bus_attr_store+0x72/0xa0 [ 70.712479][ T6555] ? bus_attr_show+0x90/0x90 [ 70.717102][ T6555] sysfs_kf_write+0x110/0x160 [ 70.721794][ T6555] kernfs_fop_write_iter+0x342/0x500 [ 70.727089][ T6555] new_sync_write+0x429/0x660 [ 70.731777][ T6555] ? new_sync_read+0x6e0/0x6e0 [ 70.736825][ T6555] ? lock_release+0x720/0x720 [ 70.741707][ T6555] vfs_write+0x7cf/0xae0 [ 70.746413][ T6555] ksys_write+0x12d/0x250 [ 70.750763][ T6555] ? __ia32_sys_read+0xb0/0xb0 [ 70.755531][ T6555] ? syscall_enter_from_user_mode+0x21/0x70 [ 70.761579][ T6555] do_syscall_64+0x35/0xb0 [ 70.766101][ T6555] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.772185][ T6555] RIP: 0033:0x7f2a8f7963ef [ 70.776790][ T6555] 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 [ 70.797062][ T6555] RSP: 002b:00007ffd8505e000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 70.805601][ T6555] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2a8f7963ef [ 70.813576][ T6555] RDX: 0000000000000003 RSI: 00007ffd8505e050 RDI: 0000000000000004 [ 70.821658][ T6555] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffd8505dfa0 [ 70.829853][ T6555] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f2a8f83d971 [ 70.838115][ T6555] R13: 00007ffd8505e050 R14: 0000000000000000 R15: 00007ffd8505e720 [ 70.846291][ T6555] [ 70.850051][ T6555] Kernel Offset: disabled [ 70.854673][ T6555] Rebooting in 86400 seconds..