Warning: Permanently added '10.128.1.50' (ECDSA) to the list of known hosts. 2021/07/08 07:13:22 fuzzer started 2021/07/08 07:13:23 connecting to host at 10.128.0.169:33257 2021/07/08 07:13:23 checking machine... 2021/07/08 07:13:23 checking revisions... 2021/07/08 07:13:23 testing simple program... syzkaller login: [ 67.377195][ T8450] chnl_net:caif_netlink_parms(): no params data found [ 67.461255][ T8450] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.468749][ T8450] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.476646][ T8450] device bridge_slave_0 entered promiscuous mode [ 67.485456][ T8450] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.493281][ T8450] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.502010][ T8450] device bridge_slave_1 entered promiscuous mode [ 67.518227][ T8450] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.529657][ T8450] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.548588][ T8450] team0: Port device team_slave_0 added [ 67.556263][ T8450] team0: Port device team_slave_1 added [ 67.571811][ T8450] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.579851][ T8450] 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. [ 67.606842][ T8450] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.619166][ T8450] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.626224][ T8450] 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. [ 67.653671][ T8450] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.675508][ T8450] device hsr_slave_0 entered promiscuous mode [ 67.682369][ T8450] device hsr_slave_1 entered promiscuous mode [ 67.752084][ T8450] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.761084][ T8450] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.770922][ T8450] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.780648][ T8450] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.798367][ T8450] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.805734][ T8450] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.813238][ T8450] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.820754][ T8450] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.854124][ T8450] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.866494][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.876318][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.885110][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.894194][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.906532][ T8450] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.917434][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.927382][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.934540][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.960119][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.969433][ T2957] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.976888][ T2957] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.986136][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.995140][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.003843][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.012574][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.022052][ T8450] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.031830][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.047437][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.055411][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.069290][ T8450] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.085687][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.104071][ T8450] device veth0_vlan entered promiscuous mode [ 68.111612][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.120646][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.128887][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.141932][ T8450] device veth1_vlan entered promiscuous mode [ 68.160553][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.170073][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.178875][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.190405][ T8450] device veth0_macvtap entered promiscuous mode [ 68.200627][ T8450] device veth1_macvtap entered promiscuous mode [ 68.215631][ T8450] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.223553][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.233406][ T2957] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.244747][ T8450] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.253801][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.264234][ T8450] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.273613][ T8450] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.282752][ T8450] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.291864][ T8450] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.351686][ T28] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.361122][ T28] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.372319][ T8670] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.394471][ T10] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.405038][ T10] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.415607][ T8670] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/07/08 07:13:25 building call list... [ 68.720944][ T10] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 70.405365][ T8439] BUG: sleeping function called from invalid context at mm/page_alloc.c:5178 [ 70.414553][ T8439] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 8439, name: syz-fuzzer [ 70.424334][ T8439] INFO: lockdep is turned off. [ 70.429288][ T8439] irq event stamp: 0 [ 70.433261][ T8439] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 70.442092][ T8439] hardirqs last disabled at (0): [] copy_process+0x1dcd/0x74d0 [ 70.451498][ T8439] softirqs last enabled at (0): [] copy_process+0x1e0e/0x74d0 [ 70.460711][ T8439] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 70.467926][ T8439] CPU: 0 PID: 8439 Comm: syz-fuzzer Tainted: G W 5.13.0-next-20210708-syzkaller #0 [ 70.478622][ T8439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.488938][ T8439] Call Trace: [ 70.492305][ T8439] dump_stack_lvl+0xcd/0x134 [ 70.497286][ T8439] ___might_sleep.cold+0x1f1/0x237 [ 70.502528][ T8439] prepare_alloc_pages+0x3da/0x580 [ 70.507650][ T8439] ? __fput+0x288/0x920 [ 70.511815][ T8439] __alloc_pages+0x12f/0x500 [ 70.516520][ T8439] ? __alloc_pages_slowpath.constprop.0+0x21b0/0x21b0 [ 70.523463][ T8439] ? __unwind_start+0x51b/0x800 [ 70.528331][ T8439] ? __kernel_text_address+0x9/0x30 [ 70.533717][ T8439] alloc_pages+0x18c/0x2a0 [ 70.538747][ T8439] stack_depot_save+0x39d/0x4e0 [ 70.543787][ T8439] save_stack+0x15e/0x1e0 [ 70.548194][ T8439] ? register_early_stack+0xb0/0xb0 [ 70.553434][ T8439] ? lock_release+0x720/0x720 [ 70.558277][ T8439] ? __alloc_pages_bulk+0x8b9/0x1870 [ 70.563600][ T8439] ? __vmalloc_node_range+0x39d/0x960 [ 70.568962][ T8439] ? __vmalloc+0x69/0x80 [ 70.573339][ T8439] ? snd_dma_vmalloc_alloc+0x57/0xa0 [ 70.578847][ T8439] ? __snd_dma_alloc_pages+0xc1/0x130 [ 70.584490][ T8439] ? snd_dma_alloc_pages+0x13b/0x230 [ 70.589872][ T8439] ? do_alloc_pages+0x9b/0x160 [ 70.594642][ T8439] ? snd_pcm_lib_malloc_pages+0x3f6/0x880 [ 70.600542][ T8439] ? snd_pcm_hw_params+0x1408/0x1990 [ 70.605823][ T8439] ? snd_pcm_kernel_ioctl+0xd1/0x240 [ 70.611112][ T8439] ? snd_pcm_oss_change_params_locked+0x1958/0x3990 [ 70.618042][ T8439] ? snd_pcm_oss_make_ready+0xe7/0x1b0 [ 70.623521][ T8439] ? snd_pcm_oss_sync+0x1de/0x800 [ 70.630472][ T8439] ? snd_pcm_oss_release+0x276/0x300 [ 70.636035][ T8439] ? __fput+0x288/0x920 [ 70.640182][ T8439] ? task_work_run+0xdd/0x1a0 [ 70.644853][ T8439] __set_page_owner+0x50/0x290 [ 70.649664][ T8439] ? kasan_unpoison+0x3c/0x60 [ 70.654392][ T8439] ? post_alloc_hook+0x1c7/0x230 [ 70.659349][ T8439] __alloc_pages_bulk+0x8b9/0x1870 [ 70.664626][ T8439] ? __alloc_pages+0x500/0x500 [ 70.669572][ T8439] ? __slab_alloc.constprop.0+0xaf/0xf0 [ 70.675121][ T8439] ? rcu_read_lock_sched_held+0xd/0x70 [ 70.680601][ T8439] ? trace_kmalloc_node+0x32/0x100 [ 70.685992][ T8439] __vmalloc_node_range+0x39d/0x960 [ 70.691448][ T8439] ? vfree_atomic+0xe0/0xe0 [ 70.696176][ T8439] ? rcu_read_lock_sched_held+0xd/0x70 [ 70.701809][ T8439] ? lock_acquire+0x442/0x510 [ 70.706564][ T8439] ? snd_dma_vmalloc_alloc+0x57/0xa0 [ 70.711851][ T8439] __vmalloc+0x69/0x80 [ 70.716087][ T8439] ? snd_dma_vmalloc_alloc+0x57/0xa0 [ 70.721381][ T8439] snd_dma_vmalloc_alloc+0x57/0xa0 [ 70.726491][ T8439] ? snd_dma_vmalloc_free+0x40/0x40 [ 70.731685][ T8439] __snd_dma_alloc_pages+0xc1/0x130 [ 70.737330][ T8439] snd_dma_alloc_pages+0x13b/0x230 [ 70.742452][ T8439] do_alloc_pages+0x9b/0x160 [ 70.747036][ T8439] snd_pcm_lib_malloc_pages+0x3f6/0x880 [ 70.752734][ T8439] ? snd_pcm_hw_params+0x828/0x1990 [ 70.757955][ T8439] snd_pcm_hw_params+0x1408/0x1990 [ 70.763180][ T8439] ? snd_pcm_playback_open+0x130/0x130 [ 70.768890][ T8439] ? snd_pcm_hw_param_near.constprop.0+0x6ca/0x8f0 [ 70.775412][ T8439] ? snd_pcm_oss_disconnect_minor+0x370/0x370 [ 70.781487][ T8439] snd_pcm_kernel_ioctl+0xd1/0x240 [ 70.786596][ T8439] snd_pcm_oss_change_params_locked+0x1958/0x3990 [ 70.793015][ T8439] ? snd_pcm_plugin_append+0x190/0x190 [ 70.798485][ T8439] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.804648][ T8439] ? snd_pcm_oss_make_ready+0xc7/0x1b0 [ 70.810115][ T8439] ? rcu_read_lock_sched_held+0xd/0x70 [ 70.815748][ T8439] ? locks_remove_posix+0x33b/0x5e0 [ 70.821029][ T8439] ? kmem_cache_free+0x27b/0x5a0 [ 70.825960][ T8439] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.832471][ T8439] ? __fsnotify_parent+0x488/0x9d0 [ 70.837582][ T8439] snd_pcm_oss_make_ready+0xe7/0x1b0 [ 70.842964][ T8439] snd_pcm_oss_sync+0x1de/0x800 [ 70.847906][ T8439] ? lock_release+0x522/0x720 [ 70.852764][ T8439] ? task_work_run+0xbc/0x1a0 [ 70.858139][ T8439] snd_pcm_oss_release+0x276/0x300 [ 70.863520][ T8439] __fput+0x288/0x920 [ 70.867591][ T8439] ? snd_pcm_oss_sync+0x800/0x800 [ 70.872985][ T8439] task_work_run+0xdd/0x1a0 [ 70.878937][ T8439] exit_to_user_mode_prepare+0x27e/0x290 [ 70.884766][ T8439] syscall_exit_to_user_mode+0x19/0x60 [ 70.890590][ T8439] do_syscall_64+0x42/0xb0 [ 70.895173][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.901496][ T8439] RIP: 0033:0x4af19b [ 70.905381][ T8439] Code: fb ff eb bd e8 a6 b6 fb ff e9 61 ff ff ff cc e8 9b 82 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 70.925934][ T8439] RSP: 002b:000000c000331430 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 70.934552][ T8439] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004af19b [ 70.942621][ T8439] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 70.951026][ T8439] RBP: 000000c000331470 R08: 0000000000000001 R09: 0000000000000000 [ 70.959523][ T8439] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000013f [ 70.967494][ T8439] R13: 000000000000013e R14: 0000000000000200 R15: 000000c0004cc0a0 [ 71.092181][ T8439] can: request_module (can-proto-0) failed. [ 71.103706][ T8439] can: request_module (can-proto-0) failed. [ 71.115073][ T8439] can: request_module (can-proto-0) failed.