./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1524846833 <...> [ 3.268088][ T84] acpid (84) used greatest stack depth: 23344 bytes left [ 3.414175][ T99] udevd[99]: starting version 3.2.11 [ 3.464400][ T100] udevd[100]: starting eudev-3.2.11 [ 3.466493][ T99] udevd (99) used greatest stack depth: 22256 bytes left [ 12.878241][ T30] kauditd_printk_skb: 50 callbacks suppressed [ 12.878254][ T30] audit: type=1400 audit(1688686789.150:61): avc: denied { transition } for pid=225 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.887459][ T30] audit: type=1400 audit(1688686789.150:62): avc: denied { noatsecure } for pid=225 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.891106][ T30] audit: type=1400 audit(1688686789.150:63): avc: denied { write } for pid=225 comm="sh" path="pipe:[171]" dev="pipefs" ino=171 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 12.895558][ T30] audit: type=1400 audit(1688686789.150:64): avc: denied { rlimitinh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.898103][ T30] audit: type=1400 audit(1688686789.150:65): avc: denied { siginh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.66' (ECDSA) to the list of known hosts. execve("./syz-executor1524846833", ["./syz-executor1524846833"], 0x7ffe33bd6e10 /* 10 vars */) = 0 brk(NULL) = 0x555555c71000 brk(0x555555c71d40) = 0x555555c71d40 arch_prctl(ARCH_SET_FS, 0x555555c71400) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555555c716d0) = 295 set_robust_list(0x555555c716e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f04565598c0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f0456558e10}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f0456559960, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0456558e10}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1524846833", 4096) = 28 brk(0x555555c92d40) = 0x555555c92d40 brk(0x555555c93000) = 0x555555c93000 mprotect(0x7f045661b000, 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 getpid() = 295 openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 write(3, "10000000000", 11) = 11 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 write(3, "20", 2) = 2 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 write(3, "100", 3) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 write(3, "7 4 1 3", 7) = 7 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 write(3, "295", 3) = 3 close(3) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f04565535c0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f0456558e10}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f04565535c0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f0456558e10}, NULL, 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c716d0) = 296 ./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x555555c716e0, 24) = 0 [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] setpgid(0, 0) = 0 [pid 296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 296] write(3, "1000", 4) = 4 [pid 296] close(3) = 0 [pid 296] futex(0x7f04566213ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0456528000 [pid 296] mprotect(0x7f0456529000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 296] clone(child_stack=0x7f04565482f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[297], tls=0x7f0456548700, child_tidptr=0x7f04565489d0) = 297 [pid 296] futex(0x7f04566213e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f04566213ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x7f04565489e0, 24) = 0 [pid 297] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 297] futex(0x7f04566213ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f04566213e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f04566213ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 297] futex(0x7f04566213ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f04566213e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f04566213ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] ioctl(5, SIOCGIFINDEX, {ifr_name="lo", ifr_ifindex=1}) = 0 [pid 297] futex(0x7f04566213ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f04566213e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f04566213ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [ 23.115031][ T30] audit: type=1400 audit(1688686799.380:66): avc: denied { execmem } for pid=295 comm="syz-executor152" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.120613][ T30] audit: type=1400 audit(1688686799.380:67): avc: denied { integrity } for pid=295 comm="syz-executor152" lockdown_reason="debugfs access" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=lockdown permissive=1 [pid 297] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x04\x01\x00\x00\x24\x00\x0b\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x60\x00\x00\x00\x01\x00\x00\x00\x00\x00\xa1\xd1\xff\xff\xff\xff\x00\x00\x00\x00\x06\x00\x05\x00\x02\x00\x00\x00\x0a\x00\x01\x00\x6e\x65\x74\x65\x6d\x00\x00\x00\xc4\x00\x02\x00\x06\x00\x00\x00\xfd\xff\xff\xff\x03\x00\x00\x00\x93\x40\x00\x00\x01\x80\x00\x00\x1f\x00\x00\x00\x14\x00\x06\x00\xdf\x00\x00\x00\x07\x00\x00\x00\x08\x00\x00\x00"..., iov_len=260}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 296] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 296] exit_group(0) = ? [pid 295] kill(-296, SIGKILL) = 0 [pid 295] kill(296, SIGKILL) = 0 [pid 295] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 295] getdents64(3, 0x555555c72720 /* 2 entries */, 32768) = 48 [pid 295] getdents64(3, 0x555555c72720 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [ 123.117224][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 123.123642][ C1] rcu: 1-....: (1 GPs behind) idle=f51/1/0x4000000000000000 softirq=2159/2160 fqs=4868 last_accelerate: 9386/ba97 dyntick_enabled: 1 [ 123.137262][ C1] (t=10000 jiffies g=553 q=2437) [ 123.142208][ C1] NMI backtrace for cpu 1 [ 123.146374][ C1] CPU: 1 PID: 297 Comm: syz-executor152 Not tainted 5.15.119-syzkaller-01849-g879959450ec7 #0 [ 123.156536][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 123.166424][ C1] Call Trace: [ 123.169549][ C1] [ 123.172241][ C1] dump_stack_lvl+0x151/0x1b7 [ 123.176754][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 123.182221][ C1] ? __wake_up_klogd+0xde/0x110 [ 123.186906][ C1] dump_stack+0x15/0x17 [ 123.190899][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 123.195758][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 123.201749][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 123.207039][ C1] ? vprintk+0x86/0x90 [ 123.210945][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 123.215721][ C1] ? _printk+0xd1/0x111 [ 123.219712][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 123.225615][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 123.231430][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 123.237332][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 123.243060][ C1] rcu_dump_cpu_stacks+0x1d8/0x330 [ 123.248008][ C1] rcu_sched_clock_irq+0xf97/0x18e0 [ 123.253041][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 123.259032][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 123.264065][ C1] update_process_times+0x198/0x200 [ 123.269096][ C1] tick_sched_timer+0x188/0x240 [ 123.273883][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 123.279253][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 123.284285][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 123.289232][ C1] ? clockevents_program_event+0x22f/0x300 [ 123.294873][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 123.300776][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 123.305562][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 123.311302][ C1] sysvec_apic_timer_interrupt+0x95/0xc0 [ 123.316746][ C1] [ 123.319542][ C1] [ 123.322300][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 123.328117][ C1] RIP: 0010:kvm_wait+0x147/0x180 [ 123.332890][ C1] Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d ab ff f2 03 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c [ 123.352416][ C1] RSP: 0018:ffffc90000986b00 EFLAGS: 00000246 [ 123.358318][ C1] RAX: 0000000000000003 RBX: 1ffff92000130d64 RCX: ffffffff8154cacf [ 123.366128][ C1] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888113f9dcac [ 123.373941][ C1] RBP: ffffc90000986bb0 R08: dffffc0000000000 R09: ffffed10227f3b96 [ 123.381761][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 123.389564][ C1] R13: ffff888113f9dcac R14: 0000000000000003 R15: 1ffff92000130d68 [ 123.397378][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 123.403537][ C1] ? asm_sysvec_call_function_single+0x1b/0x20 [ 123.409526][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 123.414472][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 123.420634][ C1] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 [ 123.426550][ C1] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 123.432787][ C1] _raw_spin_lock_bh+0x139/0x1b0 [ 123.437560][ C1] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 123.442681][ C1] ? __kasan_check_read+0x11/0x20 [ 123.447541][ C1] get_dist_table+0x207/0x2e0 [ 123.452055][ C1] netem_change+0xa05/0x20c0 [ 123.456481][ C1] ? __x64_sys_sendmsg+0x7b/0x90 [ 123.461253][ C1] ? do_syscall_64+0x3d/0xb0 [ 123.465765][ C1] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 123.471759][ C1] ? netem_destroy+0xc0/0xc0 [ 123.476183][ C1] ? hrtimer_init+0x30/0x160 [ 123.480608][ C1] netem_init+0x5b/0xb0 [ 123.484601][ C1] ? qdisc_peek_dequeued+0x230/0x230 [ 123.489724][ C1] qdisc_create+0x890/0x12e0 [ 123.494147][ C1] ? qdisc_notify+0x370/0x370 [ 123.498672][ C1] ? __nla_parse+0x43/0x60 [ 123.502912][ C1] tc_modify_qdisc+0x8b4/0x14b0 [ 123.507823][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 123.513523][ C1] ? wait_for_completion_killable_timeout+0x10/0x10 [ 123.520049][ C1] ? ns_capable+0x89/0xe0 [ 123.524647][ C1] ? netlink_net_capable+0x125/0x160 [ 123.529767][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 123.535518][ C1] rtnetlink_rcv_msg+0x951/0xc40 [ 123.540288][ C1] ? rtnetlink_bind+0x80/0x80 [ 123.544786][ C1] ? avc_denied+0x13f/0x1b0 [ 123.549127][ C1] ? avc_has_perm_noaudit+0x2dd/0x430 [ 123.554333][ C1] ? avc_denied+0x1b0/0x1b0 [ 123.558671][ C1] ? avc_has_perm+0x16f/0x260 [ 123.563208][ C1] ? ____kasan_kmalloc+0xed/0x110 [ 123.568131][ C1] ? avc_has_perm_noaudit+0x430/0x430 [ 123.573425][ C1] ? do_syscall_64+0x3d/0xb0 [ 123.578633][ C1] netlink_rcv_skb+0x1cf/0x410 [ 123.583264][ C1] ? rtnetlink_bind+0x80/0x80 [ 123.587744][ C1] ? netlink_ack+0xb10/0xb10 [ 123.592345][ C1] ? __netlink_lookup+0x37b/0x3a0 [ 123.597211][ C1] rtnetlink_rcv+0x1c/0x20 [ 123.601458][ C1] netlink_unicast+0x8df/0xac0 [ 123.606060][ C1] ? netlink_detachskb+0x90/0x90 [ 123.610833][ C1] ? security_netlink_send+0x7b/0xa0 [ 123.615954][ C1] netlink_sendmsg+0xa0a/0xd20 [ 123.620552][ C1] ? netlink_getsockopt+0x560/0x560 [ 123.625585][ C1] ? security_socket_sendmsg+0x82/0xb0 [ 123.630891][ C1] ? netlink_getsockopt+0x560/0x560 [ 123.635915][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 123.640516][ C1] ? __sys_sendmsg_sock+0x40/0x40 [ 123.645372][ C1] ? import_iovec+0xe5/0x120 [ 123.649800][ C1] ___sys_sendmsg+0x252/0x2e0 [ 123.654313][ C1] ? __sys_sendmsg+0x260/0x260 [ 123.658914][ C1] ? finish_task_switch+0x167/0x7b0 [ 123.663948][ C1] ? __schedule+0xcc6/0x1580 [ 123.668377][ C1] ? __kasan_check_write+0x14/0x20 [ 123.673320][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 123.678268][ C1] ? __fdget+0x1bc/0x240 [ 123.682348][ C1] __se_sys_sendmsg+0x19a/0x260 [ 123.687034][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 123.692068][ C1] ? __x64_sys_sendmsg+0x90/0x90 [ 123.696841][ C1] ? __kasan_check_read+0x11/0x20 [ 123.701701][ C1] __x64_sys_sendmsg+0x7b/0x90 [ 123.706303][ C1] do_syscall_64+0x3d/0xb0 [ 123.710553][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 123.716281][ C1] RIP: 0033:0x7f045659f819 [ 123.720558][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 18 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 [ 123.740152][ C1] RSP: 002b:00007f0456548208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 123.748395][ C1] RAX: ffffffffffffffda RBX: 00007f04566213e8 RCX: 00007f045659f819 [ 123.756478][ C1] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 123.764280][ C1] RBP: 00007f04566213e0 R08: 0000000000000004 R09: 0000000000000000 [ 123.772088][ C1] R10: 000000000000000c R11: 0000000000000246 R12: 00007f04566213ec [ 123.779901][ C1] R13: 00007ffe92e5bf8f R14: 00007f0456548300 R15: 0000000000022000 [ 123.787713][ C1] [ 265.069842][ C1] watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [syz-executor152:297] [ 265.078247][ C1] Modules linked in: [ 265.081986][ C1] CPU: 1 PID: 297 Comm: syz-executor152 Not tainted 5.15.119-syzkaller-01849-g879959450ec7 #0 [ 265.092045][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 265.101948][ C1] RIP: 0010:kvm_wait+0x147/0x180 [ 265.106721][ C1] Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d ab ff f2 03 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c [ 265.126770][ C1] RSP: 0018:ffffc90000986b00 EFLAGS: 00000246 [ 265.132665][ C1] RAX: 0000000000000003 RBX: 1ffff92000130d64 RCX: ffffffff8154cacf [ 265.140482][ C1] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888113f9dcac [ 265.148404][ C1] RBP: ffffc90000986bb0 R08: dffffc0000000000 R09: ffffed10227f3b96 [ 265.156209][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 265.164032][ C1] R13: ffff888113f9dcac R14: 0000000000000003 R15: 1ffff92000130d68 [ 265.171831][ C1] FS: 00007f0456548700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 265.180611][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 265.187030][ C1] CR2: 0000000000458e30 CR3: 000000011d2ba000 CR4: 00000000003506a0 [ 265.194834][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 265.202737][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 265.210545][ C1] Call Trace: [ 265.213668][ C1] [ 265.216356][ C1] ? show_regs+0x58/0x60 [ 265.220438][ C1] ? watchdog_timer_fn+0x4b1/0x5f0 [ 265.225386][ C1] ? proc_watchdog_cpumask+0xd0/0xd0 [ 265.230505][ C1] ? __hrtimer_run_queues+0x41a/0xad0 [ 265.235716][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 265.240663][ C1] ? clockevents_program_event+0x22f/0x300 [ 265.246401][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 265.252471][ C1] ? hrtimer_interrupt+0x40c/0xaa0 [ 265.257411][ C1] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 265.263312][ C1] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 265.268959][ C1] [ 265.271746][ C1] [ 265.274506][ C1] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 265.280496][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 265.286573][ C1] ? kvm_wait+0x147/0x180 [ 265.290737][ C1] ? asm_sysvec_call_function_single+0x1b/0x20 [ 265.296726][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 265.301674][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 265.307747][ C1] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 [ 265.313750][ C1] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 265.320075][ C1] _raw_spin_lock_bh+0x139/0x1b0 [ 265.324856][ C1] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 265.329878][ C1] ? __kasan_check_read+0x11/0x20 [ 265.334741][ C1] get_dist_table+0x207/0x2e0 [ 265.339253][ C1] netem_change+0xa05/0x20c0 [ 265.343695][ C1] ? __x64_sys_sendmsg+0x7b/0x90 [ 265.348571][ C1] ? do_syscall_64+0x3d/0xb0 [ 265.352999][ C1] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 265.358995][ C1] ? netem_destroy+0xc0/0xc0 [ 265.363582][ C1] ? hrtimer_init+0x30/0x160 [ 265.368011][ C1] netem_init+0x5b/0xb0 [ 265.372002][ C1] ? qdisc_peek_dequeued+0x230/0x230 [ 265.377132][ C1] qdisc_create+0x890/0x12e0 [ 265.381548][ C1] ? qdisc_notify+0x370/0x370 [ 265.386061][ C1] ? __nla_parse+0x43/0x60 [ 265.390441][ C1] tc_modify_qdisc+0x8b4/0x14b0 [ 265.395137][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 265.400843][ C1] ? wait_for_completion_killable_timeout+0x10/0x10 [ 265.407271][ C1] ? ns_capable+0x89/0xe0 [ 265.411442][ C1] ? netlink_net_capable+0x125/0x160 [ 265.416555][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 265.422286][ C1] rtnetlink_rcv_msg+0x951/0xc40 [ 265.427055][ C1] ? rtnetlink_bind+0x80/0x80 [ 265.431566][ C1] ? avc_denied+0x13f/0x1b0 [ 265.435905][ C1] ? avc_has_perm_noaudit+0x2dd/0x430 [ 265.441114][ C1] ? avc_denied+0x1b0/0x1b0 [ 265.445453][ C1] ? avc_has_perm+0x16f/0x260 [ 265.449969][ C1] ? ____kasan_kmalloc+0xed/0x110 [ 265.454915][ C1] ? avc_has_perm_noaudit+0x430/0x430 [ 265.460126][ C1] ? do_syscall_64+0x3d/0xb0 [ 265.464565][ C1] netlink_rcv_skb+0x1cf/0x410 [ 265.469153][ C1] ? rtnetlink_bind+0x80/0x80 [ 265.473672][ C1] ? netlink_ack+0xb10/0xb10 [ 265.478088][ C1] ? __netlink_lookup+0x37b/0x3a0 [ 265.482956][ C1] rtnetlink_rcv+0x1c/0x20 [ 265.487200][ C1] netlink_unicast+0x8df/0xac0 [ 265.491808][ C1] ? netlink_detachskb+0x90/0x90 [ 265.496573][ C1] ? security_netlink_send+0x7b/0xa0 [ 265.501876][ C1] netlink_sendmsg+0xa0a/0xd20 [ 265.506468][ C1] ? netlink_getsockopt+0x560/0x560 [ 265.511533][ C1] ? security_socket_sendmsg+0x82/0xb0 [ 265.516798][ C1] ? netlink_getsockopt+0x560/0x560 [ 265.521846][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 265.526589][ C1] ? __sys_sendmsg_sock+0x40/0x40 [ 265.531440][ C1] ? import_iovec+0xe5/0x120 [ 265.535864][ C1] ___sys_sendmsg+0x252/0x2e0 [ 265.540378][ C1] ? __sys_sendmsg+0x260/0x260 [ 265.544976][ C1] ? finish_task_switch+0x167/0x7b0 [ 265.550021][ C1] ? __schedule+0xcc6/0x1580 [ 265.554533][ C1] ? __kasan_check_write+0x14/0x20 [ 265.559483][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 265.564545][ C1] ? __fdget+0x1bc/0x240 [ 265.568617][ C1] __se_sys_sendmsg+0x19a/0x260 [ 265.573304][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 265.578336][ C1] ? __x64_sys_sendmsg+0x90/0x90 [ 265.583120][ C1] ? __kasan_check_read+0x11/0x20 [ 265.588238][ C1] __x64_sys_sendmsg+0x7b/0x90 [ 265.592833][ C1] do_syscall_64+0x3d/0xb0 [ 265.597101][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 265.602814][ C1] RIP: 0033:0x7f045659f819 [ 265.607084][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 18 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 [ 265.626681][ C1] RSP: 002b:00007f0456548208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 265.634942][ C1] RAX: ffffffffffffffda RBX: 00007f04566213e8 RCX: 00007f045659f819 [ 265.642829][ C1] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 265.650635][ C1] RBP: 00007f04566213e0 R08: 0000000000000004 R09: 0000000000000000 [ 265.658444][ C1] R10: 000000000000000c R11: 0000000000000246 R12: 00007f04566213ec [ 265.666353][ C1] R13: 00007ffe92e5bf8f R14: 00007f0456548300 R15: 0000000000022000 [ 265.674465][ C1] [ 265.677315][ C1] Sending NMI from CPU 1 to CPUs 0: [ 265.682421][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_idle_enter+0x416/0x760