Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.43' (ECDSA) to the list of known hosts. 2021/07/09 22:50:23 fuzzer started 2021/07/09 22:50:23 connecting to host at 10.128.0.169:33901 2021/07/09 22:50:23 checking machine... 2021/07/09 22:50:23 checking revisions... 2021/07/09 22:50:23 testing simple program... syzkaller login: [ 76.647245][ T8475] chnl_net:caif_netlink_parms(): no params data found [ 76.702411][ T8475] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.712808][ T8475] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.723515][ T8475] device bridge_slave_0 entered promiscuous mode [ 76.733794][ T8475] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.743846][ T8475] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.753678][ T8475] device bridge_slave_1 entered promiscuous mode [ 76.774007][ T8475] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.786680][ T8475] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.812582][ T8475] team0: Port device team_slave_0 added [ 76.821352][ T8475] team0: Port device team_slave_1 added [ 76.840897][ T8475] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.848557][ T8475] 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. [ 76.875979][ T8475] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.889905][ T8475] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.897072][ T8475] 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. [ 76.923954][ T8475] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.953507][ T8475] device hsr_slave_0 entered promiscuous mode [ 76.961971][ T8475] device hsr_slave_1 entered promiscuous mode [ 77.071468][ T8475] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.082778][ T8475] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.094696][ T8475] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.106564][ T8475] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.134979][ T8475] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.142344][ T8475] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.151049][ T8475] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.158793][ T8475] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.207787][ T8475] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.221967][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.235049][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.244238][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.253562][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.269230][ T8475] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.283083][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.292294][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.299542][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.311649][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.321898][ T20] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.329508][ T20] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.351799][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.372907][ T8475] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.389321][ T8475] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.402571][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.413807][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.424104][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.434743][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.444089][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.475243][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.483257][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.499192][ T8475] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.520445][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.543055][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.552235][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.560804][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.571551][ T8475] device veth0_vlan entered promiscuous mode [ 77.587821][ T8475] device veth1_vlan entered promiscuous mode [ 77.612270][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.621803][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.631619][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.645893][ T8475] device veth0_macvtap entered promiscuous mode [ 77.656735][ T8475] device veth1_macvtap entered promiscuous mode [ 77.676995][ T8475] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.685803][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.697503][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.709956][ T8475] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.721788][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.731052][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.748124][ T8475] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.761846][ T8475] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.776066][ T8475] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.786987][ T8475] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 77.893724][ T1596] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.904248][ T1596] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.932749][ T77] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.949143][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.957515][ T77] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.968098][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/07/09 22:50:26 building call list... [ 78.822342][ T1596] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.340688][ T8464] [ 80.343855][ T8464] ====================================================== [ 80.352114][ T8464] WARNING: possible circular locking dependency detected [ 80.359556][ T8464] 5.13.0-syzkaller #0 Not tainted [ 80.365832][ T8464] ------------------------------------------------------ [ 80.374212][ T8464] syz-fuzzer/8464 is trying to acquire lock: [ 80.381934][ T8464] ffffffff8ba9c1c0 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire+0xf7/0x160 [ 80.392317][ T8464] [ 80.392317][ T8464] but task is already holding lock: [ 80.401108][ T8464] ffff8880b9d4d620 (lock#2){-.-.}-{2:2}, at: __alloc_pages_bulk+0x4ad/0x1870 [ 80.411337][ T8464] [ 80.411337][ T8464] which lock already depends on the new lock. [ 80.411337][ T8464] [ 80.425136][ T8464] [ 80.425136][ T8464] the existing dependency chain (in reverse order) is: [ 80.436198][ T8464] [ 80.436198][ T8464] -> #1 (lock#2){-.-.}-{2:2}: [ 80.443746][ T8464] free_unref_page+0x1bf/0x690 [ 80.450425][ T8464] __mmdrop+0xcb/0x3f0 [ 80.455202][ T8464] finish_task_switch.isra.0+0x6da/0xa50 [ 80.461454][ T8464] __schedule+0x93c/0x2710 [ 80.466832][ T8464] preempt_schedule_irq+0x4e/0x90 [ 80.473955][ T8464] irqentry_exit+0x31/0x80 [ 80.479729][ T8464] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 80.486690][ T8464] kasan_check_range+0x12b/0x180 [ 80.493569][ T8464] lock_release+0xa1/0x720 [ 80.498945][ T8464] __kmalloc+0x5f/0x330 [ 80.504337][ T8464] load_elf_binary+0x3b2/0x4b40 [ 80.510085][ T8464] bprm_execve+0x821/0x19a0 [ 80.515461][ T8464] do_execveat_common+0x5eb/0x770 [ 80.521690][ T8464] __x64_sys_execve+0x8f/0xc0 [ 80.527049][ T8464] do_syscall_64+0x35/0xb0 [ 80.532305][ T8464] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 80.539253][ T8464] [ 80.539253][ T8464] -> #0 (fs_reclaim){+.+.}-{0:0}: [ 80.547594][ T8464] __lock_acquire+0x2a07/0x54a0 [ 80.554018][ T8464] lock_acquire+0x1ab/0x510 [ 80.559858][ T8464] fs_reclaim_acquire+0x117/0x160 [ 80.566353][ T8464] prepare_alloc_pages+0x15c/0x580 [ 80.572653][ T8464] __alloc_pages+0x12f/0x500 [ 80.578396][ T8464] alloc_pages+0x18c/0x2a0 [ 80.583615][ T8464] stack_depot_save+0x39d/0x4e0 [ 80.590215][ T8464] save_stack+0x15e/0x1e0 [ 80.597421][ T8464] __set_page_owner+0x50/0x290 [ 80.603497][ T8464] __alloc_pages_bulk+0x8b9/0x1870 [ 80.609589][ T8464] __vmalloc_node_range+0x39d/0x960 [ 80.615927][ T8464] __vmalloc+0x69/0x80 [ 80.621473][ T8464] snd_dma_alloc_pages+0x433/0x590 [ 80.627878][ T8464] do_alloc_pages+0x9b/0x160 [ 80.633076][ T8464] snd_pcm_lib_malloc_pages+0x3f6/0x880 [ 80.639512][ T8464] snd_pcm_hw_params+0x1408/0x1990 [ 80.646717][ T8464] snd_pcm_kernel_ioctl+0xd1/0x240 [ 80.653033][ T8464] snd_pcm_oss_change_params_locked+0x1958/0x3990 [ 80.660326][ T8464] snd_pcm_oss_make_ready+0xe7/0x1b0 [ 80.666318][ T8464] snd_pcm_oss_sync+0x1de/0x800 [ 80.671695][ T8464] snd_pcm_oss_release+0x276/0x300 [ 80.677693][ T8464] __fput+0x288/0x920 [ 80.682406][ T8464] task_work_run+0xdd/0x1a0 [ 80.688148][ T8464] exit_to_user_mode_prepare+0x27e/0x290 [ 80.696297][ T8464] syscall_exit_to_user_mode+0x19/0x60 [ 80.703429][ T8464] do_syscall_64+0x42/0xb0 [ 80.708819][ T8464] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 80.715339][ T8464] [ 80.715339][ T8464] other info that might help us debug this: [ 80.715339][ T8464] [ 80.725893][ T8464] Possible unsafe locking scenario: [ 80.725893][ T8464] [ 80.733409][ T8464] CPU0 CPU1 [ 80.739371][ T8464] ---- ---- [ 80.745247][ T8464] lock(lock#2); [ 80.748920][ T8464] lock(fs_reclaim); [ 80.755927][ T8464] lock(lock#2); [ 80.762066][ T8464] lock(fs_reclaim); [ 80.766164][ T8464] [ 80.766164][ T8464] *** DEADLOCK *** [ 80.766164][ T8464] [ 80.774899][ T8464] 2 locks held by syz-fuzzer/8464: [ 80.780276][ T8464] #0: ffff88801900c440 (&runtime->oss.params_lock){+.+.}-{3:3}, at: snd_pcm_oss_make_ready+0xc7/0x1b0 [ 80.791762][ T8464] #1: ffff8880b9d4d620 (lock#2){-.-.}-{2:2}, at: __alloc_pages_bulk+0x4ad/0x1870 [ 80.801493][ T8464] [ 80.801493][ T8464] stack backtrace: [ 80.807908][ T8464] CPU: 1 PID: 8464 Comm: syz-fuzzer Not tainted 5.13.0-syzkaller #0 [ 80.817829][ T8464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.829891][ T8464] Call Trace: [ 80.833694][ T8464] dump_stack_lvl+0xcd/0x134 [ 80.838996][ T8464] check_noncircular+0x25f/0x2e0 [ 80.845105][ T8464] ? print_circular_bug+0x1e0/0x1e0 [ 80.850984][ T8464] ? __kernel_text_address+0x9/0x30 [ 80.856428][ T8464] ? unwind_get_return_address+0x51/0x90 [ 80.862573][ T8464] ? lockdep_lock+0xc6/0x200 [ 80.867390][ T8464] ? call_rcu_zapped+0xb0/0xb0 [ 80.872254][ T8464] __lock_acquire+0x2a07/0x54a0 [ 80.877544][ T8464] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 80.883795][ T8464] ? register_early_stack+0xb0/0xb0 [ 80.889609][ T8464] lock_acquire+0x1ab/0x510 [ 80.894304][ T8464] ? fs_reclaim_acquire+0xf7/0x160 [ 80.899418][ T8464] ? lock_release+0x720/0x720 [ 80.904455][ T8464] ? lock_chain_count+0x20/0x20 [ 80.909769][ T8464] ? mark_lock+0xef/0x17b0 [ 80.914257][ T8464] ? deref_stack_reg+0xee/0x150 [ 80.919128][ T8464] fs_reclaim_acquire+0x117/0x160 [ 80.924576][ T8464] ? fs_reclaim_acquire+0xf7/0x160 [ 80.929909][ T8464] prepare_alloc_pages+0x15c/0x580 [ 80.935037][ T8464] ? exit_to_user_mode_prepare+0x27e/0x290 [ 80.940933][ T8464] __alloc_pages+0x12f/0x500 [ 80.945828][ T8464] ? __alloc_pages_slowpath.constprop.0+0x21b0/0x21b0 [ 80.952672][ T8464] ? __unwind_start+0x51b/0x800 [ 80.957953][ T8464] ? __kernel_text_address+0x9/0x30 [ 80.963169][ T8464] alloc_pages+0x18c/0x2a0 [ 80.967605][ T8464] stack_depot_save+0x39d/0x4e0 [ 80.972529][ T8464] save_stack+0x15e/0x1e0 [ 80.976856][ T8464] ? register_early_stack+0xb0/0xb0 [ 80.982151][ T8464] ? __alloc_pages_bulk+0x8b9/0x1870 [ 80.987698][ T8464] ? __vmalloc_node_range+0x39d/0x960 [ 80.993162][ T8464] ? __vmalloc+0x69/0x80 [ 80.997578][ T8464] ? snd_dma_alloc_pages+0x433/0x590 [ 81.003024][ T8464] ? do_alloc_pages+0x9b/0x160 [ 81.008421][ T8464] ? snd_pcm_lib_malloc_pages+0x3f6/0x880 [ 81.014298][ T8464] ? snd_pcm_hw_params+0x1408/0x1990 [ 81.019571][ T8464] ? snd_pcm_kernel_ioctl+0xd1/0x240 [ 81.025021][ T8464] ? snd_pcm_oss_change_params_locked+0x1958/0x3990 [ 81.031859][ T8464] ? snd_pcm_oss_make_ready+0xe7/0x1b0 [ 81.037913][ T8464] ? snd_pcm_oss_sync+0x1de/0x800 [ 81.043404][ T8464] ? snd_pcm_oss_release+0x276/0x300 [ 81.049174][ T8464] ? __fput+0x288/0x920 [ 81.053337][ T8464] ? task_work_run+0xdd/0x1a0 [ 81.058254][ T8464] ? exit_to_user_mode_prepare+0x27e/0x290 [ 81.064152][ T8464] ? syscall_exit_to_user_mode+0x19/0x60 [ 81.069964][ T8464] ? preempt_count_add+0x74/0x140 [ 81.075074][ T8464] __set_page_owner+0x50/0x290 [ 81.080108][ T8464] ? post_alloc_hook+0x145/0x1e0 [ 81.085122][ T8464] __alloc_pages_bulk+0x8b9/0x1870 [ 81.090806][ T8464] ? __alloc_pages+0x500/0x500 [ 81.095752][ T8464] ? rcu_read_lock_sched_held+0x3a/0x70 [ 81.101919][ T8464] ? trace_kmalloc_node+0xbe/0xf0 [ 81.107045][ T8464] __vmalloc_node_range+0x39d/0x960 [ 81.112632][ T8464] ? vfree_atomic+0xe0/0xe0 [ 81.117511][ T8464] ? snd_dma_alloc_pages+0x433/0x590 [ 81.122902][ T8464] __vmalloc+0x69/0x80 [ 81.126987][ T8464] ? snd_dma_alloc_pages+0x433/0x590 [ 81.132262][ T8464] snd_dma_alloc_pages+0x433/0x590 [ 81.137537][ T8464] do_alloc_pages+0x9b/0x160 [ 81.142239][ T8464] snd_pcm_lib_malloc_pages+0x3f6/0x880 [ 81.147858][ T8464] ? snd_pcm_hw_params+0x828/0x1990 [ 81.153237][ T8464] snd_pcm_hw_params+0x1408/0x1990 [ 81.158454][ T8464] ? snd_pcm_playback_open+0x130/0x130 [ 81.164176][ T8464] ? snd_pcm_hw_param_near.constprop.0+0x6ca/0x8f0 [ 81.170868][ T8464] ? snd_pcm_oss_disconnect_minor+0x370/0x370 [ 81.177010][ T8464] snd_pcm_kernel_ioctl+0xd1/0x240 [ 81.182481][ T8464] snd_pcm_oss_change_params_locked+0x1958/0x3990 [ 81.188975][ T8464] ? snd_pcm_plugin_append+0x190/0x190 [ 81.195017][ T8464] ? snd_pcm_oss_make_ready+0xc7/0x1b0 [ 81.200585][ T8464] ? locks_remove_posix+0x33b/0x5e0 [ 81.205951][ T8464] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 81.212007][ T8464] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.218957][ T8464] ? __fsnotify_parent+0x488/0x9d0 [ 81.224066][ T8464] snd_pcm_oss_make_ready+0xe7/0x1b0 [ 81.229535][ T8464] snd_pcm_oss_sync+0x1de/0x800 [ 81.234401][ T8464] snd_pcm_oss_release+0x276/0x300 [ 81.239543][ T8464] __fput+0x288/0x920 [ 81.243713][ T8464] ? snd_pcm_oss_sync+0x800/0x800 [ 81.248842][ T8464] task_work_run+0xdd/0x1a0 [ 81.253887][ T8464] exit_to_user_mode_prepare+0x27e/0x290 [ 81.259797][ T8464] syscall_exit_to_user_mode+0x19/0x60 [ 81.265430][ T8464] do_syscall_64+0x42/0xb0 [ 81.269922][ T8464] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 81.275993][ T8464] RIP: 0033:0x4af19b [ 81.280071][ T8464] 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 [ 81.301333][ T8464] RSP: 002b:000000c00046d430 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 81.310104][ T8464] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004af19b [ 81.318881][ T8464] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 81.328097][ T8464] RBP: 000000c00046d470 R08: 0000000000000001 R09: 0000000000000000 [ 81.337455][ T8464] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000013e [ 81.346993][ T8464] R13: 000000000000013d R14: 0000000000000200 R15: 000000c00040c000 [ 81.357136][ T8464] BUG: sleeping function called from invalid context at mm/page_alloc.c:5179 [ 81.367525][ T8464] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 8464, name: syz-fuzzer [ 81.377080][ T8464] INFO: lockdep is turned off. [ 81.384603][ T8464] irq event stamp: 163908 [ 81.389018][ T8464] hardirqs last enabled at (163907): [] _raw_spin_unlock_irqrestore+0x50/0x70 [ 81.399959][ T8464] hardirqs last disabled at (163908): [] __alloc_pages_bulk+0x1017/0x1870 [ 81.410342][ T8464] softirqs last enabled at (161880): [] __irq_exit_rcu+0x16e/0x1c0 [ 81.420327][ T8464] softirqs last disabled at (161871): [] __irq_exit_rcu+0x16e/0x1c0 [ 81.430586][ T8464] CPU: 1 PID: 8464 Comm: syz-fuzzer Not tainted 5.13.0-syzkaller #0 [ 81.438825][ T8464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.448952][ T8464] Call Trace: [ 81.452494][ T8464] dump_stack_lvl+0xcd/0x134 [ 81.457276][ T8464] ___might_sleep.cold+0x1f1/0x237 [ 81.462812][ T8464] prepare_alloc_pages+0x3da/0x580 [ 81.467918][ T8464] ? exit_to_user_mode_prepare+0x27e/0x290 [ 81.474067][ T8464] __alloc_pages+0x12f/0x500 [ 81.478946][ T8464] ? __alloc_pages_slowpath.constprop.0+0x21b0/0x21b0 [ 81.487736][ T8464] ? __unwind_start+0x51b/0x800 [ 81.493855][ T8464] ? __kernel_text_address+0x9/0x30 [ 81.499849][ T8464] alloc_pages+0x18c/0x2a0 [ 81.504436][ T8464] stack_depot_save+0x39d/0x4e0 [ 81.509460][ T8464] save_stack+0x15e/0x1e0 [ 81.513778][ T8464] ? register_early_stack+0xb0/0xb0 [ 81.519319][ T8464] ? __alloc_pages_bulk+0x8b9/0x1870 [ 81.525118][ T8464] ? __vmalloc_node_range+0x39d/0x960 [ 81.531287][ T8464] ? __vmalloc+0x69/0x80 [ 81.535564][ T8464] ? snd_dma_alloc_pages+0x433/0x590 [ 81.541105][ T8464] ? do_alloc_pages+0x9b/0x160 [ 81.546123][ T8464] ? snd_pcm_lib_malloc_pages+0x3f6/0x880 [ 81.552403][ T8464] ? snd_pcm_hw_params+0x1408/0x1990 [ 81.558379][ T8464] ? snd_pcm_kernel_ioctl+0xd1/0x240 [ 81.565193][ T8464] ? snd_pcm_oss_change_params_locked+0x1958/0x3990 [ 81.574860][ T8464] ? snd_pcm_oss_make_ready+0xe7/0x1b0 [ 81.580593][ T8464] ? snd_pcm_oss_sync+0x1de/0x800 [ 81.585811][ T8464] ? snd_pcm_oss_release+0x276/0x300 [ 81.593133][ T8464] ? __fput+0x288/0x920 [ 81.598557][ T8464] ? task_work_run+0xdd/0x1a0 [ 81.604545][ T8464] ? exit_to_user_mode_prepare+0x27e/0x290 [ 81.611949][ T8464] ? syscall_exit_to_user_mode+0x19/0x60 [ 81.617879][ T8464] ? preempt_count_add+0x74/0x140 [ 81.623313][ T8464] __set_page_owner+0x50/0x290 [ 81.629759][ T8464] ? post_alloc_hook+0x145/0x1e0 [ 81.635253][ T8464] __alloc_pages_bulk+0x8b9/0x1870 [ 81.640398][ T8464] ? __alloc_pages+0x500/0x500 [ 81.645222][ T8464] ? rcu_read_lock_sched_held+0x3a/0x70 [ 81.651261][ T8464] ? trace_kmalloc_node+0xbe/0xf0 [ 81.656670][ T8464] __vmalloc_node_range+0x39d/0x960 [ 81.662036][ T8464] ? vfree_atomic+0xe0/0xe0 [ 81.666995][ T8464] ? snd_dma_alloc_pages+0x433/0x590 [ 81.673360][ T8464] __vmalloc+0x69/0x80 [ 81.677612][ T8464] ? snd_dma_alloc_pages+0x433/0x590 [ 81.684662][ T8464] snd_dma_alloc_pages+0x433/0x590 [ 81.690748][ T8464] do_alloc_pages+0x9b/0x160 [ 81.695672][ T8464] snd_pcm_lib_malloc_pages+0x3f6/0x880 [ 81.701486][ T8464] ? snd_pcm_hw_params+0x828/0x1990 [ 81.706689][ T8464] snd_pcm_hw_params+0x1408/0x1990 [ 81.712929][ T8464] ? snd_pcm_playback_open+0x130/0x130 [ 81.718653][ T8464] ? snd_pcm_hw_param_near.constprop.0+0x6ca/0x8f0 [ 81.725505][ T8464] ? snd_pcm_oss_disconnect_minor+0x370/0x370 [ 81.731821][ T8464] snd_pcm_kernel_ioctl+0xd1/0x240 [ 81.738868][ T8464] snd_pcm_oss_change_params_locked+0x1958/0x3990 [ 81.746176][ T8464] ? snd_pcm_plugin_append+0x190/0x190 [ 81.753226][ T8464] ? snd_pcm_oss_make_ready+0xc7/0x1b0 [ 81.759385][ T8464] ? locks_remove_posix+0x33b/0x5e0 [ 81.764757][ T8464] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 81.772069][ T8464] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.778871][ T8464] ? __fsnotify_parent+0x488/0x9d0 [ 81.784432][ T8464] snd_pcm_oss_make_ready+0xe7/0x1b0 [ 81.790138][ T8464] snd_pcm_oss_sync+0x1de/0x800 [ 81.796299][ T8464] snd_pcm_oss_release+0x276/0x300 [ 81.803437][ T8464] __fput+0x288/0x920 [ 81.808071][ T8464] ? snd_pcm_oss_sync+0x800/0x800 [ 81.814454][ T8464] task_work_run+0xdd/0x1a0 [ 81.820460][ T8464] exit_to_user_mode_prepare+0x27e/0x290 [ 81.827937][ T8464] syscall_exit_to_user_mode+0x19/0x60 [ 81.834560][ T8464] do_syscall_64+0x42/0xb0 [ 81.840103][ T8464] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 81.847781][ T8464] RIP: 0033:0x4af19b [ 81.852853][ T8464] 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 [ 81.878072][ T8464] RSP: 002b:000000c00046d430 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 executing program [ 81.888196][ T8464] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004af19b [ 81.899499][ T8464] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 81.910023][ T8464] RBP: 000000c00046d470 R08: 0000000000000001 R09: 0000000000000000 [ 81.920080][ T8464] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000013e [ 81.929005][ T8464] R13: 000000000000013d R14: 0000000000000200 R15: 000000c00040c000 [ 82.121718][ T8464] can: request_module (can-proto-0) failed. [ 82.134495][ T8464] can: request_module (can-proto-0) failed. [ 82.146625][ T8464] can: request_module (can-proto-0) failed. [ 82.309610][ T1596] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.350674][ T8464] base_sock_release(ffff888039852f40) sk=ffff88802cb37000