./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1944349149 <...> Warning: Permanently added '10.128.0.181' (ED25519) to the list of known hosts. execve("./syz-executor1944349149", ["./syz-executor1944349149"], 0x7fff00579560 /* 10 vars */) = 0 brk(NULL) = 0x555556087000 brk(0x555556087d00) = 0x555556087d00 arch_prctl(ARCH_SET_FS, 0x555556087380) = 0 set_tid_address(0x555556087650) = 291 set_robust_list(0x555556087660, 24) = 0 rseq(0x555556087ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1944349149", 4096) = 28 getrandom("\x33\xcb\xc4\x91\x9e\x64\x29\x04", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556087d00 brk(0x5555560a8d00) = 0x5555560a8d00 brk(0x5555560a9000) = 0x5555560a9000 mprotect(0x7fd51ea38000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556087650) = 292 ./strace-static-x86_64: Process 292 attached [pid 292] set_robust_list(0x555556087660, 24) = 0 [pid 292] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 292] setsid() = 1 [pid 292] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 292] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 292] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 292] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 292] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 292] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 292] unshare(CLONE_NEWNS) = 0 [pid 292] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 292] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 292] unshare(CLONE_NEWCGROUP) = 0 [pid 292] unshare(CLONE_NEWUTS) = 0 [pid 292] unshare(CLONE_SYSVSEM) = 0 [pid 292] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 292] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 292] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 292] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 292] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 292] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 292] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 292] getpid() = 1 [pid 292] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 12]) = 0 [ 26.052527][ T24] audit: type=1400 audit(1692868496.190:68): avc: denied { mount } for pid=292 comm="syz-executor194" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 26.075166][ T24] audit: type=1400 audit(1692868496.190:69): avc: denied { mounton } for pid=292 comm="syz-executor194" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 26.096546][ T24] audit: type=1400 audit(1692868496.210:70): avc: denied { mounton } for pid=292 comm="syz-executor194" path="/dev/binderfs" dev="devtmpfs" ino=357 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 26.119478][ T24] audit: type=1400 audit(1692868496.210:71): avc: denied { mount } for pid=292 comm="syz-executor194" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 26.141948][ T24] audit: type=1400 audit(1692868496.210:72): avc: denied { create } for pid=288 comm="strace-static-x" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_tcpdiag_socket permissive=1 [ 26.162471][ T24] audit: type=1400 audit(1692868496.210:73): avc: denied { write } for pid=288 comm="strace-static-x" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_tcpdiag_socket permissive=1 [ 26.182891][ T24] audit: type=1400 audit(1692868496.210:74): avc: denied { nlmsg_read } for pid=288 comm="strace-static-x" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_tcpdiag_socket permissive=1 [ 26.203720][ T24] audit: type=1400 audit(1692868496.220:75): avc: denied { module_request } for pid=288 comm="strace-static-x" kmod="net-pf-16-proto-4-type-16" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [pid 293] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x54\x00\x00\x00\x24\x00\x0b\x0e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x0a\x00\x01\x00\x6e\x65\x74\x65\x6d\x00\x00\x00\x24\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00\x02\x00\x3e\xfc\x00\x00", iov_len=84}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 292] kill(-2, SIGKILL) = 0 [pid 292] kill(2, SIGKILL) = 0 [pid 292] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x5555560886f0 /* 2 entries */, 32768) = 48 [pid 292] getdents64(3, 0x5555560886f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [ 126.057981][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 126.064410][ C1] rcu: 1-...!: (10000 ticks this GP) idle=fca/1/0x4000000000000000 softirq=1427/1427 fqs=0 last_accelerate: 94ad/bbc3 dyntick_enabled: 1 [ 126.078282][ C1] (t=10000 jiffies g=277 q=2239) [ 126.083145][ C1] rcu: rcu_preempt kthread starved for 10000 jiffies! g277 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 126.094158][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 126.103968][ C1] rcu: RCU grace-period kthread stack dump: [ 126.109699][ C1] task:rcu_preempt state:I stack: 0 pid: 13 ppid: 2 flags:0x00004000 [ 126.118723][ C1] Call Trace: [ 126.121870][ C1] __schedule+0xbe6/0x1330 [ 126.126108][ C1] ? __sched_text_start+0x8/0x8 [ 126.130792][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 126.136181][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 126.140860][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 126.145806][ C1] schedule+0x13d/0x1d0 [ 126.149803][ C1] schedule_timeout+0x18c/0x360 [ 126.154484][ C1] ? prepare_to_swait_event+0x39f/0x3e0 [ 126.159877][ C1] ? console_conditional_schedule+0x10/0x10 [ 126.165599][ C1] ? run_local_timers+0x160/0x160 [ 126.170457][ C1] ? __note_gp_changes+0x2d8/0x6f0 [ 126.175404][ C1] rcu_gp_kthread+0xefc/0x23a0 [ 126.180006][ C1] ? dump_blkd_tasks+0x7e0/0x7e0 [ 126.184783][ C1] ? rcu_barrier_callback+0x50/0x50 [ 126.189814][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 126.194500][ C1] ? __kasan_check_read+0x11/0x20 [ 126.199358][ C1] ? __kthread_parkme+0xb9/0x1c0 [ 126.204135][ C1] kthread+0x34b/0x3d0 [ 126.208039][ C1] ? rcu_barrier_callback+0x50/0x50 [ 126.213073][ C1] ? kthread_blkcg+0xd0/0xd0 [ 126.217500][ C1] ret_from_fork+0x1f/0x30 [ 126.221784][ C1] NMI backtrace for cpu 1 [ 126.225919][ C1] CPU: 1 PID: 293 Comm: syz-executor194 Not tainted 5.10.188-syzkaller-00574-gd96fc5f29172 #0 [ 126.235987][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 126.245876][ C1] Call Trace: [ 126.249002][ C1] [ 126.251699][ C1] dump_stack_lvl+0x1e2/0x24b [ 126.256208][ C1] ? panic+0x80b/0x80b [ 126.260112][ C1] ? bfq_pos_tree_add_move+0x43b/0x43b [ 126.265410][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 126.270701][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 126.275392][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 126.281305][ C1] dump_stack+0x15/0x17 [ 126.285285][ C1] nmi_trigger_cpumask_backtrace+0x2b5/0x300 [ 126.291102][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 126.297001][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 126.302744][ C1] rcu_dump_cpu_stacks+0x199/0x2b0 [ 126.307687][ C1] rcu_sched_clock_irq+0xf8a/0x1890 [ 126.312712][ C1] ? rcutree_dead_cpu+0x340/0x340 [ 126.317571][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 126.322605][ C1] update_process_times+0x198/0x200 [ 126.327641][ C1] tick_sched_timer+0x188/0x240 [ 126.332343][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 126.337708][ C1] __hrtimer_run_queues+0x3d7/0xa50 [ 126.342754][ C1] ? hrtimer_interrupt+0x8b0/0x8b0 [ 126.347690][ C1] ? clockevents_program_event+0x214/0x2c0 [ 126.353333][ C1] ? ktime_get_update_offsets_now+0x266/0x280 [ 126.359234][ C1] hrtimer_interrupt+0x39a/0x8b0 [ 126.364010][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 126.369737][ C1] asm_call_irq_on_stack+0xf/0x20 [ 126.374590][ C1] [ 126.377388][ C1] sysvec_apic_timer_interrupt+0x85/0xe0 [ 126.382841][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 126.388663][ C1] RIP: 0010:kvm_wait+0xfc/0x150 [ 126.393343][ C1] Code: 38 f0 75 26 41 f7 c7 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d 85 46 d5 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d 76 46 d5 03 fb f4 <4c> 89 7c 24 18 ff 74 24 18 9d 48 c7 44 24 20 0e 36 e0 45 49 c7 04 [ 126.412874][ C1] RSP: 0018:ffffc90000b16b00 EFLAGS: 00000246 [ 126.418778][ C1] RAX: 0000000000000003 RBX: 1ffff92000162d64 RCX: ffffffff8150aa64 [ 126.426588][ C1] RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc90000b16b40 [ 126.434400][ C1] RBP: ffffc90000b16bb0 R08: dffffc0000000000 R09: fffffbfff0d9e09e [ 126.442212][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 126.450731][ C1] R13: ffffffff86cf04ec R14: 0000000000000003 R15: 0000000000000246 [ 126.458540][ C1] ? __pv_queued_spin_lock_slowpath+0x6d4/0xc70 [ 126.464609][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 126.470616][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 126.475544][ C1] ? __pv_queued_spin_lock_slowpath+0x6d4/0xc70 [ 126.481621][ C1] __pv_queued_spin_lock_slowpath+0x72f/0xc70 [ 126.487522][ C1] ? __pv_queued_spin_unlock_slowpath+0x280/0x280 [ 126.493773][ C1] _raw_spin_lock_bh+0x139/0x1b0 [ 126.498542][ C1] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 126.503580][ C1] ? kvmalloc_node+0x82/0x130 [ 126.508094][ C1] ? __kasan_check_read+0x11/0x20 [ 126.512950][ C1] get_dist_table+0x207/0x2e0 [ 126.517463][ C1] netem_change+0x974/0x1fb0 [ 126.521894][ C1] ? __x64_sys_sendmsg+0x7b/0x90 [ 126.526665][ C1] ? do_syscall_64+0x34/0x70 [ 126.531097][ C1] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 126.536999][ C1] ? netem_destroy+0xc0/0xc0 [ 126.541422][ C1] ? hrtimer_init+0x33/0x160 [ 126.545852][ C1] netem_init+0x5b/0xb0 [ 126.549842][ C1] ? qdisc_peek_dequeued+0x230/0x230 [ 126.554960][ C1] qdisc_create+0x879/0x12d0 [ 126.559385][ C1] ? qdisc_notify+0x370/0x370 [ 126.563899][ C1] ? __nla_parse+0x43/0x60 [ 126.568150][ C1] tc_modify_qdisc+0x8a4/0x13f0 [ 126.572850][ C1] ? qdisc_offload_graft_helper+0x280/0x280 [ 126.578573][ C1] ? mutex_trylock+0xa0/0xa0 [ 126.582994][ C1] ? ns_capable+0x89/0xe0 [ 126.587162][ C1] ? netlink_net_capable+0x125/0x160 [ 126.592283][ C1] ? qdisc_offload_graft_helper+0x280/0x280 [ 126.598011][ C1] rtnetlink_rcv_msg+0x955/0xc50 [ 126.602785][ C1] ? is_bpf_text_address+0x172/0x190 [ 126.607906][ C1] ? rtnetlink_bind+0x80/0x80 [ 126.612418][ C1] ? arch_stack_walk+0xf3/0x140 [ 126.617104][ C1] ? stack_trace_save+0x113/0x1c0 [ 126.621998][ C1] ? stack_trace_snprint+0xf0/0xf0 [ 126.626916][ C1] ? avc_has_perm+0x14d/0x400 [ 126.631424][ C1] ? memcpy+0x56/0x70 [ 126.635245][ C1] ? avc_has_perm+0x275/0x400 [ 126.639759][ C1] ? __kasan_slab_alloc+0xb1/0xe0 [ 126.644622][ C1] ? slab_post_alloc_hook+0x61/0x2f0 [ 126.649741][ C1] ? kmem_cache_alloc+0x168/0x2e0 [ 126.654600][ C1] ? avc_has_perm_noaudit+0x240/0x240 [ 126.659896][ C1] ? iov_iter_advance+0x258/0xb20 [ 126.664756][ C1] netlink_rcv_skb+0x1cf/0x410 [ 126.669359][ C1] ? rtnetlink_bind+0x80/0x80 [ 126.673874][ C1] ? netlink_ack+0xb30/0xb30 [ 126.678297][ C1] ? __netlink_lookup+0x37b/0x3a0 [ 126.683157][ C1] rtnetlink_rcv+0x1c/0x20 [ 126.687513][ C1] netlink_unicast+0x8df/0xac0 [ 126.692112][ C1] ? netlink_detachskb+0x90/0x90 [ 126.696874][ C1] ? security_netlink_send+0x7b/0xa0 [ 126.701992][ C1] netlink_sendmsg+0xa46/0xd00 [ 126.706598][ C1] ? netlink_getsockopt+0x5c0/0x5c0 [ 126.711639][ C1] ? security_socket_sendmsg+0x82/0xb0 [ 126.716933][ C1] ? netlink_getsockopt+0x5c0/0x5c0 [ 126.721955][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 126.726557][ C1] ? __sys_sendmsg_sock+0x40/0x40 [ 126.731425][ C1] ? import_iovec+0xe5/0x120 [ 126.736108][ C1] ___sys_sendmsg+0x252/0x2e0 [ 126.740625][ C1] ? __sys_sendmsg+0x280/0x280 [ 126.745217][ C1] ? finish_task_switch+0x130/0x5a0 [ 126.750269][ C1] ? __schedule+0xbee/0x1330 [ 126.754721][ C1] ? __kasan_check_write+0x14/0x20 [ 126.759624][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 126.764580][ C1] ? __kasan_check_read+0x11/0x20 [ 126.769437][ C1] ? __fdget+0x179/0x240 [ 126.773507][ C1] __se_sys_sendmsg+0x1b1/0x280 [ 126.778302][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 126.783330][ C1] ? __x64_sys_sendmsg+0x90/0x90 [ 126.788093][ C1] ? fpu__clear_all+0x20/0x20 [ 126.792614][ C1] __x64_sys_sendmsg+0x7b/0x90 [ 126.797205][ C1] do_syscall_64+0x34/0x70 [ 126.801463][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 126.807184][ C1] RIP: 0033:0x7fd51e9c5d69 [ 126.811451][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 126.830887][ C1] RSP: 002b:00007ffed58cf008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 126.839126][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd51e9c5d69 [ 126.846931][ C1] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 [ 126.854751][ C1] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000555556088610 [ 126.862553][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd51ea385f0 [ 126.870453][ C1] R13: 00007ffed58cf248 R14: 00007ffed58cf030 R15: 00007ffed58cf020 [ 264.888428][ C1] watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor194:293] [ 264.896929][ C1] Modules linked in: [ 264.900658][ C1] CPU: 1 PID: 293 Comm: syz-executor194 Not tainted 5.10.188-syzkaller-00574-gd96fc5f29172 #0 [ 264.910722][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 264.920622][ C1] RIP: 0010:__pv_queued_spin_lock_slowpath+0x5a1/0xc70 [ 264.927304][ C1] Code: 85 ba 01 00 00 c6 03 00 48 8b 44 24 28 42 0f b6 04 30 84 c0 0f 85 bf 01 00 00 48 8b 04 24 c6 00 01 bb 00 80 ff ff eb 06 f3 90 c3 74 50 43 0f b6 44 35 00 84 c0 75 32 41 80 3c 24 00 75 e9 4c [ 264.947191][ C1] RSP: 0018:ffffc90000b16bc0 EFLAGS: 00000206 [ 264.953180][ C1] RAX: 0000000000000000 RBX: 00000000ffff9a0a RCX: ffffffff8150aa64 [ 264.960989][ C1] RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc90000b16b40 [ 264.968888][ C1] RBP: ffffc90000b16cb0 R08: dffffc0000000000 R09: fffffbfff0d9e09e [ 264.976701][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff86cf04ec [ 264.984510][ C1] R13: 1ffffffff0d9e09d R14: dffffc0000000000 R15: ffff88823ff52580 [ 264.992327][ C1] FS: 0000555556087380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 265.001091][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 265.007511][ C1] CR2: 000000000045c370 CR3: 000000011e500000 CR4: 00000000003506a0 [ 265.015323][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 265.023132][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 265.030944][ C1] Call Trace: [ 265.034187][ C1] [ 265.036876][ C1] ? show_regs+0x58/0x60 [ 265.040972][ C1] ? watchdog_timer_fn+0x471/0x590 [ 265.045913][ C1] ? proc_watchdog_cpumask+0xd0/0xd0 [ 265.051034][ C1] ? __hrtimer_run_queues+0x3d7/0xa50 [ 265.056429][ C1] ? hrtimer_interrupt+0x8b0/0x8b0 [ 265.061556][ C1] ? clockevents_program_event+0x214/0x2c0 [ 265.067189][ C1] ? ktime_get_update_offsets_now+0x266/0x280 [ 265.073094][ C1] ? hrtimer_interrupt+0x39a/0x8b0 [ 265.078043][ C1] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 265.083941][ C1] ? asm_call_irq_on_stack+0xf/0x20 [ 265.088979][ C1] [ 265.091753][ C1] ? sysvec_apic_timer_interrupt+0x85/0xe0 [ 265.097397][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 265.103388][ C1] ? __pv_queued_spin_lock_slowpath+0x6d4/0xc70 [ 265.109459][ C1] ? __pv_queued_spin_lock_slowpath+0x5a1/0xc70 [ 265.115623][ C1] ? __pv_queued_spin_unlock_slowpath+0x280/0x280 [ 265.121871][ C1] _raw_spin_lock_bh+0x139/0x1b0 [ 265.126641][ C1] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 265.131811][ C1] ? kvmalloc_node+0x82/0x130 [ 265.136277][ C1] ? __kasan_check_read+0x11/0x20 [ 265.141138][ C1] get_dist_table+0x207/0x2e0 [ 265.145649][ C1] netem_change+0x974/0x1fb0 [ 265.150077][ C1] ? __x64_sys_sendmsg+0x7b/0x90 [ 265.154849][ C1] ? do_syscall_64+0x34/0x70 [ 265.159276][ C1] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 265.165179][ C1] ? netem_destroy+0xc0/0xc0 [ 265.169610][ C1] ? hrtimer_init+0x33/0x160 [ 265.174031][ C1] netem_init+0x5b/0xb0 [ 265.178038][ C1] ? qdisc_peek_dequeued+0x230/0x230 [ 265.183155][ C1] qdisc_create+0x879/0x12d0 [ 265.187581][ C1] ? qdisc_notify+0x370/0x370 [ 265.192098][ C1] ? __nla_parse+0x43/0x60 [ 265.196339][ C1] tc_modify_qdisc+0x8a4/0x13f0 [ 265.201028][ C1] ? qdisc_offload_graft_helper+0x280/0x280 [ 265.206754][ C1] ? mutex_trylock+0xa0/0xa0 [ 265.211180][ C1] ? ns_capable+0x89/0xe0 [ 265.215355][ C1] ? netlink_net_capable+0x125/0x160 [ 265.220466][ C1] ? qdisc_offload_graft_helper+0x280/0x280 [ 265.226194][ C1] rtnetlink_rcv_msg+0x955/0xc50 [ 265.230970][ C1] ? is_bpf_text_address+0x172/0x190 [ 265.236093][ C1] ? rtnetlink_bind+0x80/0x80 [ 265.240610][ C1] ? arch_stack_walk+0xf3/0x140 [ 265.245294][ C1] ? stack_trace_save+0x113/0x1c0 [ 265.250152][ C1] ? stack_trace_snprint+0xf0/0xf0 [ 265.255185][ C1] ? avc_has_perm+0x14d/0x400 [ 265.259701][ C1] ? memcpy+0x56/0x70 [ 265.263517][ C1] ? avc_has_perm+0x275/0x400 [ 265.268030][ C1] ? __kasan_slab_alloc+0xb1/0xe0 [ 265.272917][ C1] ? slab_post_alloc_hook+0x61/0x2f0 [ 265.278024][ C1] ? kmem_cache_alloc+0x168/0x2e0 [ 265.282875][ C1] ? avc_has_perm_noaudit+0x240/0x240 [ 265.288081][ C1] ? iov_iter_advance+0x258/0xb20 [ 265.292941][ C1] netlink_rcv_skb+0x1cf/0x410 [ 265.297628][ C1] ? rtnetlink_bind+0x80/0x80 [ 265.302148][ C1] ? netlink_ack+0xb30/0xb30 [ 265.306570][ C1] ? __netlink_lookup+0x37b/0x3a0 [ 265.311428][ C1] rtnetlink_rcv+0x1c/0x20 [ 265.315683][ C1] netlink_unicast+0x8df/0xac0 [ 265.320283][ C1] ? netlink_detachskb+0x90/0x90 [ 265.325053][ C1] ? security_netlink_send+0x7b/0xa0 [ 265.330175][ C1] netlink_sendmsg+0xa46/0xd00 [ 265.334773][ C1] ? netlink_getsockopt+0x5c0/0x5c0 [ 265.339814][ C1] ? security_socket_sendmsg+0x82/0xb0 [ 265.345103][ C1] ? netlink_getsockopt+0x5c0/0x5c0 [ 265.350141][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 265.354750][ C1] ? __sys_sendmsg_sock+0x40/0x40 [ 265.359613][ C1] ? import_iovec+0xe5/0x120 [ 265.364023][ C1] ___sys_sendmsg+0x252/0x2e0 [ 265.368537][ C1] ? __sys_sendmsg+0x280/0x280 [ 265.373138][ C1] ? finish_task_switch+0x130/0x5a0 [ 265.378173][ C1] ? __schedule+0xbee/0x1330 [ 265.382601][ C1] ? __kasan_check_write+0x14/0x20 [ 265.387548][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 265.392493][ C1] ? __kasan_check_read+0x11/0x20 [ 265.397360][ C1] ? __fdget+0x179/0x240 [ 265.401436][ C1] __se_sys_sendmsg+0x1b1/0x280 [ 265.406141][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 265.411154][ C1] ? __x64_sys_sendmsg+0x90/0x90 [ 265.415930][ C1] ? fpu__clear_all+0x20/0x20 [ 265.420442][ C1] __x64_sys_sendmsg+0x7b/0x90 [ 265.425042][ C1] do_syscall_64+0x34/0x70 [ 265.429296][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 265.435032][ C1] RIP: 0033:0x7fd51e9c5d69 [ 265.439275][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 265.458715][ C1] RSP: 002b:00007ffed58cf008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 265.466958][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd51e9c5d69 [ 265.474770][ C1] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 [ 265.482582][ C1] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000555556088610 [ 265.490398][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd51ea385f0 [ 265.498206][ C1] R13: 00007ffed58cf248 R14: 00007ffed58cf030 R15: 00007ffed58cf020