[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 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 '10.128.1.78' (ECDSA) to the list of known hosts. 2021/09/29 14:18:12 fuzzer started 2021/09/29 14:18:12 connecting to host at 10.128.0.169:39337 2021/09/29 14:18:12 checking machine... 2021/09/29 14:18:12 checking revisions... 2021/09/29 14:18:12 testing simple program... syzkaller login: [ 74.409496][ T6548] chnl_net:caif_netlink_parms(): no params data found [ 74.485694][ T6548] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.493277][ T6548] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.502891][ T6548] device bridge_slave_0 entered promiscuous mode [ 74.514682][ T6548] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.522068][ T6548] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.530579][ T6548] device bridge_slave_1 entered promiscuous mode [ 74.561284][ T6548] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.574247][ T6548] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.606595][ T6548] team0: Port device team_slave_0 added [ 74.615197][ T6548] team0: Port device team_slave_1 added [ 74.642053][ T6548] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.649460][ T6548] 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. [ 74.675991][ T6548] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.689026][ T6548] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.696761][ T6548] 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. [ 74.724865][ T6548] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.763734][ T6548] device hsr_slave_0 entered promiscuous mode [ 74.770787][ T6548] device hsr_slave_1 entered promiscuous mode [ 74.875889][ T6548] ------------[ cut here ]------------ [ 74.881673][ T6548] WARNING: CPU: 0 PID: 6548 at net/core/devlink.c:5158 devlink_nl_region_notify+0x184/0x1e0 [ 74.892122][ T6548] Modules linked in: [ 74.896603][ T6548] CPU: 0 PID: 6548 Comm: syz-executor.0 Not tainted 5.15.0-rc3-next-20210929-syzkaller #0 [ 74.906986][ T6548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.917694][ T6548] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 74.924436][ T6548] 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 e1 03 45 fa e8 dc 03 45 fa <0f> 0b e9 f7 fe ff ff e8 d0 03 45 fa 0f 0b eb da 4c 89 e7 e8 b4 62 [ 74.945580][ T6548] RSP: 0018:ffffc90002c67660 EFLAGS: 00010293 [ 74.952049][ T6548] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 74.960372][ T6548] RDX: ffff888023315700 RSI: ffffffff87313be4 RDI: 0000000000000003 [ 74.968475][ T6548] RBP: ffff8880191a7600 R08: 0000000000000000 R09: 0000000000000000 [ 74.976567][ T6548] R10: ffffffff87313ada R11: 0000000000000000 R12: ffff88801970f000 [ 74.984880][ T6548] R13: 0000000000000000 R14: 000000000000002c R15: ffff88801970f070 [ 74.992971][ T6548] FS: 000055555574d400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 75.002531][ T6548] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.010885][ T6548] CR2: 00007fff4ee745d0 CR3: 0000000067ff9000 CR4: 00000000003506f0 [ 75.020049][ T6548] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.029142][ T6548] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.037418][ T6548] Call Trace: [ 75.040800][ T6548] [ 75.043730][ T6548] devlink_region_create+0x39f/0x4c0 [ 75.049397][ T6548] nsim_dev_probe+0x5f6/0x1150 [ 75.054800][ T6548] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 75.060509][ T6548] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 75.068503][ T6548] ? kernfs_create_link+0x1b3/0x230 [ 75.073931][ T6548] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 75.080531][ T6548] ? kernfs_put+0x31/0x50 [ 75.085208][ T6548] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 75.091657][ T6548] ? sysfs_do_create_link_sd+0xbb/0x140 [ 75.097501][ T6548] ? sysfs_create_link+0x67/0xc0 [ 75.102664][ T6548] ? nsim_bus_remove+0x20/0x20 [ 75.107647][ T6548] really_probe+0x245/0xcc0 [ 75.112275][ T6548] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 75.118620][ T6548] __driver_probe_device+0x338/0x4d0 [ 75.124029][ T6548] driver_probe_device+0x4c/0x1a0 [ 75.129263][ T6548] __device_attach_driver+0x20b/0x2f0 [ 75.135264][ T6548] ? driver_allows_async_probing+0x150/0x150 [ 75.141782][ T6548] bus_for_each_drv+0x15f/0x1e0 [ 75.146965][ T6548] ? bus_for_each_dev+0x1d0/0x1d0 [ 75.152188][ T6548] ? rcu_read_lock_sched_held+0x3a/0x70 [ 75.157923][ T6548] __device_attach+0x228/0x4a0 [ 75.162996][ T6548] ? device_driver_attach+0x210/0x210 [ 75.168741][ T6548] ? kobject_uevent_env+0x2bb/0x1650 [ 75.174478][ T6548] bus_probe_device+0x1e4/0x290 [ 75.179546][ T6548] device_add+0xc17/0x1ee0 [ 75.184260][ T6548] ? lockdep_init_map_type+0x2c3/0x7b0 [ 75.189927][ T6548] ? lockdep_init_map_type+0x2c3/0x7b0 [ 75.195652][ T6548] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 75.202003][ T6548] ? __raw_spin_lock_init+0x36/0x110 [ 75.207392][ T6548] new_device_store+0x48b/0x770 [ 75.212749][ T6548] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 75.218989][ T6548] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 75.225368][ T6548] ? sysfs_file_ops+0x1c0/0x1c0 [ 75.230595][ T6548] bus_attr_store+0x72/0xa0 [ 75.235445][ T6548] ? bus_attr_show+0x90/0x90 [ 75.240252][ T6548] sysfs_kf_write+0x110/0x160 [ 75.245038][ T6548] kernfs_fop_write_iter+0x342/0x500 [ 75.250497][ T6548] new_sync_write+0x429/0x660 [ 75.255622][ T6548] ? new_sync_read+0x6e0/0x6e0 [ 75.260692][ T6548] ? lock_release+0x720/0x720 [ 75.265693][ T6548] vfs_write+0x7cf/0xae0 [ 75.270056][ T6548] ksys_write+0x12d/0x250 [ 75.274723][ T6548] ? __ia32_sys_read+0xb0/0xb0 [ 75.279686][ T6548] ? syscall_enter_from_user_mode+0x21/0x70 [ 75.286296][ T6548] do_syscall_64+0x35/0xb0 [ 75.290843][ T6548] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 75.296944][ T6548] RIP: 0033:0x7f603727f3ef [ 75.301727][ T6548] 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 [ 75.322073][ T6548] RSP: 002b:00007fffb7e0c8c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 75.330863][ T6548] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f603727f3ef [ 75.339999][ T6548] RDX: 0000000000000003 RSI: 00007fffb7e0c910 RDI: 0000000000000004 [ 75.348274][ T6548] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007fffb7e0c860 [ 75.356901][ T6548] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f6037326971 [ 75.365291][ T6548] R13: 00007fffb7e0c910 R14: 0000000000000000 R15: 00007fffb7e0cfe0 [ 75.373311][ T6548] [ 75.376425][ T6548] Kernel panic - not syncing: panic_on_warn set ... [ 75.383336][ T6548] CPU: 0 PID: 6548 Comm: syz-executor.0 Not tainted 5.15.0-rc3-next-20210929-syzkaller #0 [ 75.393232][ T6548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.403518][ T6548] Call Trace: [ 75.406805][ T6548] [ 75.409736][ T6548] dump_stack_lvl+0xcd/0x134 [ 75.414649][ T6548] panic+0x2b0/0x6dd [ 75.418570][ T6548] ? __warn_printk+0xf3/0xf3 [ 75.423352][ T6548] ? __warn.cold+0x1a/0x44 [ 75.427788][ T6548] ? devlink_nl_region_notify+0x184/0x1e0 [ 75.433701][ T6548] __warn.cold+0x35/0x44 [ 75.438219][ T6548] ? devlink_nl_region_notify+0x184/0x1e0 [ 75.444151][ T6548] report_bug+0x1bd/0x210 [ 75.448822][ T6548] handle_bug+0x3c/0x60 [ 75.453581][ T6548] exc_invalid_op+0x14/0x40 [ 75.458098][ T6548] asm_exc_invalid_op+0x12/0x20 [ 75.463236][ T6548] RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 [ 75.470087][ T6548] 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 e1 03 45 fa e8 dc 03 45 fa <0f> 0b e9 f7 fe ff ff e8 d0 03 45 fa 0f 0b eb da 4c 89 e7 e8 b4 62 [ 75.490068][ T6548] RSP: 0018:ffffc90002c67660 EFLAGS: 00010293 [ 75.496238][ T6548] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 75.504559][ T6548] RDX: ffff888023315700 RSI: ffffffff87313be4 RDI: 0000000000000003 [ 75.512621][ T6548] RBP: ffff8880191a7600 R08: 0000000000000000 R09: 0000000000000000 [ 75.520682][ T6548] R10: ffffffff87313ada R11: 0000000000000000 R12: ffff88801970f000 [ 75.528830][ T6548] R13: 0000000000000000 R14: 000000000000002c R15: ffff88801970f070 [ 75.537000][ T6548] ? devlink_nl_region_notify+0x7a/0x1e0 [ 75.542969][ T6548] ? devlink_nl_region_notify+0x184/0x1e0 [ 75.548921][ T6548] devlink_region_create+0x39f/0x4c0 [ 75.554443][ T6548] nsim_dev_probe+0x5f6/0x1150 [ 75.559380][ T6548] ? nsim_esw_legacy_enable+0x1b0/0x1b0 [ 75.565041][ T6548] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 75.571733][ T6548] ? kernfs_create_link+0x1b3/0x230 [ 75.577334][ T6548] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 75.584024][ T6548] ? kernfs_put+0x31/0x50 [ 75.588460][ T6548] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 75.595183][ T6548] ? sysfs_do_create_link_sd+0xbb/0x140 [ 75.600943][ T6548] ? sysfs_create_link+0x67/0xc0 [ 75.606193][ T6548] ? nsim_bus_remove+0x20/0x20 [ 75.611249][ T6548] really_probe+0x245/0xcc0 [ 75.615932][ T6548] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 75.622860][ T6548] __driver_probe_device+0x338/0x4d0 executing program [ 75.628319][ T6548] driver_probe_device+0x4c/0x1a0 [ 75.634450][ T6548] __device_attach_driver+0x20b/0x2f0 [ 75.639916][ T6548] ? driver_allows_async_probing+0x150/0x150 [ 75.646425][ T6548] bus_for_each_drv+0x15f/0x1e0 [ 75.651370][ T6548] ? bus_for_each_dev+0x1d0/0x1d0 [ 75.656477][ T6548] ? rcu_read_lock_sched_held+0x3a/0x70 [ 75.662386][ T6548] __device_attach+0x228/0x4a0 [ 75.667637][ T6548] ? device_driver_attach+0x210/0x210 [ 75.673318][ T6548] ? kobject_uevent_env+0x2bb/0x1650 [ 75.678877][ T6548] bus_probe_device+0x1e4/0x290 [ 75.683825][ T6548] device_add+0xc17/0x1ee0 [ 75.688766][ T6548] ? lockdep_init_map_type+0x2c3/0x7b0 [ 75.694685][ T6548] ? lockdep_init_map_type+0x2c3/0x7b0 [ 75.700454][ T6548] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 75.707104][ T6548] ? __raw_spin_lock_init+0x36/0x110 [ 75.712705][ T6548] new_device_store+0x48b/0x770 [ 75.717556][ T6548] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 75.723714][ T6548] ? nsim_bus_dev_numvfs_store+0x3e0/0x3e0 [ 75.729699][ T6548] ? sysfs_file_ops+0x1c0/0x1c0 [ 75.734714][ T6548] bus_attr_store+0x72/0xa0 [ 75.739298][ T6548] ? bus_attr_show+0x90/0x90 [ 75.743895][ T6548] sysfs_kf_write+0x110/0x160 [ 75.748648][ T6548] kernfs_fop_write_iter+0x342/0x500 [ 75.754385][ T6548] new_sync_write+0x429/0x660 [ 75.759078][ T6548] ? new_sync_read+0x6e0/0x6e0 [ 75.764374][ T6548] ? lock_release+0x720/0x720 [ 75.769389][ T6548] vfs_write+0x7cf/0xae0 [ 75.773855][ T6548] ksys_write+0x12d/0x250 [ 75.778462][ T6548] ? __ia32_sys_read+0xb0/0xb0 [ 75.783626][ T6548] ? syscall_enter_from_user_mode+0x21/0x70 [ 75.789620][ T6548] do_syscall_64+0x35/0xb0 [ 75.794751][ T6548] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 75.800938][ T6548] RIP: 0033:0x7f603727f3ef [ 75.805349][ T6548] 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 [ 75.827305][ T6548] RSP: 002b:00007fffb7e0c8c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 75.835905][ T6548] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f603727f3ef [ 75.844593][ T6548] RDX: 0000000000000003 RSI: 00007fffb7e0c910 RDI: 0000000000000004 [ 75.852937][ T6548] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007fffb7e0c860 [ 75.861208][ T6548] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f6037326971 [ 75.869203][ T6548] R13: 00007fffb7e0c910 R14: 0000000000000000 R15: 00007fffb7e0cfe0 [ 75.877510][ T6548] [ 75.881073][ T6548] Kernel Offset: disabled [ 75.885481][ T6548] Rebooting in 86400 seconds..