./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3245768148 <...> it(1693391799.299:64): 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 [ 13.970463][ T30] audit: type=1400 audit(1693391799.299:65): 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 [ 15.130080][ T228] sftp-server (228) used greatest stack depth: 22096 bytes left Warning: Permanently added '10.128.1.94' (ED25519) to the list of known hosts. execve("./syz-executor3245768148", ["./syz-executor3245768148"], 0x7ffd8fae58b0 /* 10 vars */) = 0 brk(NULL) = 0x5555556f9000 brk(0x5555556f9d00) = 0x5555556f9d00 arch_prctl(ARCH_SET_FS, 0x5555556f9380) = 0 set_tid_address(0x5555556f9650) = 294 set_robust_list(0x5555556f9660, 24) = 0 rseq(0x5555556f9ca0, 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-executor3245768148", 4096) = 28 getrandom("\x4d\xea\xe7\xa9\x26\xa8\x8c\xd8", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555556f9d00 brk(0x55555571ad00) = 0x55555571ad00 brk(0x55555571b000) = 0x55555571b000 mprotect(0x7f06b1b3c000, 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=0x5555556f9650) = 295 ./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x5555556f9660, 24) = 0 [pid 295] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setsid() = 1 [pid 295] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 295] unshare(CLONE_NEWNS) = 0 [pid 295] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 295] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 295] unshare(CLONE_NEWCGROUP) = 0 [pid 295] unshare(CLONE_NEWUTS) = 0 [pid 295] unshare(CLONE_SYSVSEM) = 0 [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] getpid() = 1 [pid 295] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 12]) = 0 [ 22.266475][ T30] audit: type=1400 audit(1693391807.599:66): avc: denied { execmem } for pid=294 comm="syz-executor324" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.286121][ T30] audit: type=1400 audit(1693391807.609:67): avc: denied { mounton } for pid=295 comm="syz-executor324" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 22.310475][ T30] audit: type=1400 audit(1693391807.609:68): avc: denied { mount } for pid=295 comm="syz-executor324" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 22.333323][ T30] audit: type=1400 audit(1693391807.609:69): avc: denied { mounton } for pid=295 comm="syz-executor324" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 22.354709][ T30] audit: type=1400 audit(1693391807.619:70): avc: denied { mounton } for pid=295 comm="syz-executor324" path="/dev/binderfs" dev="devtmpfs" ino=362 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 22.377585][ T30] audit: type=1400 audit(1693391807.619:71): avc: denied { mount } for pid=295 comm="syz-executor324" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [pid 296] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xb0\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\x80\x00\x02\x00\x00\x00\x00\x00\x01\x00\x01\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x03\x00\x00\x00\x00\x00\xc6\xe1\x00\x00\x56\x00\x02\x00\x48\x0e\x13\x24\x7d\x37\x9e\x8b"..., iov_len=176}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 295] kill(-2, SIGKILL) = 0 [pid 295] kill(2, SIGKILL) = 0 [pid 295] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x5555556fa6f0 /* 2 entries */, 32768) = 48 [pid 295] getdents64(3, 0x5555556fa6f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [ 122.277077][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 122.283969][ C0] (detected by 0, t=10002 jiffies, g=397, q=2446) [ 122.290284][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10000 (4294949446-4294939446), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 122.303644][ C0] rcu: rcu_preempt kthread starved for 10000 jiffies! g397 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 122.314491][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 122.324304][ C0] rcu: RCU grace-period kthread stack dump: [ 122.330023][ C0] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 122.340724][ C0] Call Trace: [ 122.343844][ C0] [ 122.346624][ C0] __schedule+0xcbe/0x1580 [ 122.350873][ C0] ? release_firmware_map_entry+0x18f/0x18f [ 122.356599][ C0] ? del_timer_sync+0x1bc/0x230 [ 122.361288][ C0] ? __kasan_check_write+0x14/0x20 [ 122.366234][ C0] ? __kasan_check_write+0x14/0x20 [ 122.371183][ C0] schedule+0x11f/0x1e0 [ 122.375179][ C0] schedule_timeout+0x18c/0x370 [ 122.379863][ C0] ? __kasan_check_write+0x14/0x20 [ 122.384811][ C0] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 122.390103][ C0] ? console_conditional_schedule+0x30/0x30 [ 122.395832][ C0] ? update_process_times+0x200/0x200 [ 122.401042][ C0] ? prepare_to_swait_event+0x308/0x320 [ 122.406424][ C0] rcu_gp_fqs_loop+0x29f/0xe60 [ 122.411021][ C0] ? dump_blkd_tasks+0x7e0/0x7e0 [ 122.415794][ C0] ? rcu_gp_init+0xc20/0xc20 [ 122.420305][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 122.425344][ C0] ? rcu_gp_init+0x9c5/0xc20 [ 122.429778][ C0] rcu_gp_kthread+0xa4/0x350 [ 122.434282][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 122.438968][ C0] ? rcu_barrier_callback+0x50/0x50 [ 122.444003][ C0] ? __kasan_check_read+0x11/0x20 [ 122.448863][ C0] ? __kthread_parkme+0xb2/0x200 [ 122.453639][ C0] kthread+0x421/0x510 [ 122.457543][ C0] ? rcu_barrier_callback+0x50/0x50 [ 122.462577][ C0] ? kthread_blkcg+0xd0/0xd0 [ 122.467005][ C0] ret_from_fork+0x1f/0x30 [ 122.471260][ C0] [ 122.474120][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 122.480285][ C0] NMI backtrace for cpu 0 [ 122.484479][ C0] CPU: 0 PID: 296 Comm: syz-executor324 Not tainted 5.15.123-syzkaller-00688-g83c56fbab45d #0 [ 122.494526][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 122.504413][ C0] Call Trace: [ 122.507535][ C0] [ 122.510226][ C0] dump_stack_lvl+0x151/0x1b7 [ 122.514740][ C0] ? io_uring_drop_tctx_refs+0x190/0x190 [ 122.520209][ C0] dump_stack+0x15/0x17 [ 122.524204][ C0] nmi_cpu_backtrace+0x2f7/0x300 [ 122.528975][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 122.534963][ C0] ? panic+0x751/0x751 [ 122.538871][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 122.544775][ C0] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 122.550584][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 122.556488][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 122.562216][ C0] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 122.568205][ C0] print_other_cpu_stall+0x112d/0x1340 [ 122.573501][ C0] ? generic_exec_single+0x271/0x400 [ 122.578620][ C0] ? rcu_stall_kick_kthreads+0x240/0x240 [ 122.584089][ C0] ? timekeeping_update+0x392/0x460 [ 122.589124][ C0] rcu_sched_clock_irq+0x97c/0x18e0 [ 122.594158][ C0] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 122.600145][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 122.605179][ C0] update_process_times+0x198/0x200 [ 122.610213][ C0] tick_sched_timer+0x188/0x240 [ 122.614899][ C0] ? tick_setup_sched_timer+0x480/0x480 [ 122.620282][ C0] __hrtimer_run_queues+0x41a/0xad0 [ 122.625316][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 122.630265][ C0] ? clockevents_program_event+0x22f/0x300 [ 122.635903][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 122.641809][ C0] hrtimer_interrupt+0x40c/0xaa0 [ 122.646585][ C0] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 122.652310][ C0] sysvec_apic_timer_interrupt+0x95/0xc0 [ 122.657777][ C0] [ 122.660555][ C0] [ 122.663333][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 122.669146][ C0] RIP: 0010:kvm_wait+0x147/0x180 [ 122.673926][ C0] 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 6b 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 [ 122.693449][ C0] RSP: 0018:ffffc900009c6b00 EFLAGS: 00000246 [ 122.699401][ C0] RAX: 0000000000000003 RBX: 1ffff92000138d64 RCX: ffffffff8154cfdf [ 122.707164][ C0] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffffffff86f3c3ec [ 122.714972][ C0] RBP: ffffc900009c6bb0 R08: dffffc0000000000 R09: fffffbfff0de787e [ 122.722811][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 122.730597][ C0] R13: ffffffff86f3c3ec R14: 0000000000000003 R15: 1ffff92000138d68 [ 122.738412][ C0] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 122.744484][ C0] ? asm_sysvec_call_function_single+0x1b/0x20 [ 122.750477][ C0] ? kvm_arch_para_hints+0x30/0x30 [ 122.755420][ C0] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 122.761495][ C0] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 [ 122.767399][ C0] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 122.773644][ C0] ? __kmalloc+0x13a/0x270 [ 122.777898][ C0] ? kvmalloc_node+0x1f0/0x4d0 [ 122.782499][ C0] _raw_spin_lock_bh+0x139/0x1b0 [ 122.787279][ C0] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 122.792306][ C0] ? __kasan_check_read+0x11/0x20 [ 122.797178][ C0] get_dist_table+0x207/0x2e0 [ 122.801681][ C0] netem_change+0xa05/0x20c0 [ 122.806109][ C0] ? __x64_sys_sendmsg+0x7b/0x90 [ 122.810882][ C0] ? do_syscall_64+0x3d/0xb0 [ 122.815314][ C0] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 122.821211][ C0] ? netem_destroy+0xc0/0xc0 [ 122.825642][ C0] ? hrtimer_init+0x30/0x160 [ 122.830065][ C0] netem_init+0x5b/0xb0 [ 122.834150][ C0] ? qdisc_peek_dequeued+0x230/0x230 [ 122.839269][ C0] qdisc_create+0x890/0x12e0 [ 122.843697][ C0] ? qdisc_notify+0x370/0x370 [ 122.848212][ C0] ? __nla_parse+0x43/0x60 [ 122.852464][ C0] tc_modify_qdisc+0x8b4/0x14b0 [ 122.857154][ C0] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 122.862880][ C0] ? wait_for_completion_killable_timeout+0x10/0x10 [ 122.869300][ C0] ? ns_capable+0x89/0xe0 [ 122.873465][ C0] ? netlink_net_capable+0x125/0x160 [ 122.878586][ C0] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 122.884395][ C0] rtnetlink_rcv_msg+0x951/0xc40 [ 122.889090][ C0] ? rtnetlink_bind+0x80/0x80 [ 122.893605][ C0] ? avc_denied+0x13f/0x1b0 [ 122.897946][ C0] ? avc_has_perm_noaudit+0x2dd/0x430 [ 122.903151][ C0] ? avc_denied+0x1b0/0x1b0 [ 122.907494][ C0] ? avc_has_perm+0x16f/0x260 [ 122.912007][ C0] ? ____kasan_kmalloc+0xed/0x110 [ 122.916864][ C0] ? avc_has_perm_noaudit+0x430/0x430 [ 122.922071][ C0] ? do_syscall_64+0x3d/0xb0 [ 122.926504][ C0] netlink_rcv_skb+0x1cf/0x410 [ 122.931108][ C0] ? rtnetlink_bind+0x80/0x80 [ 122.935610][ C0] ? netlink_ack+0xb10/0xb10 [ 122.940042][ C0] ? __netlink_lookup+0x37b/0x3a0 [ 122.944903][ C0] rtnetlink_rcv+0x1c/0x20 [ 122.949175][ C0] netlink_unicast+0x8df/0xac0 [ 122.953751][ C0] ? netlink_detachskb+0x90/0x90 [ 122.958525][ C0] ? security_netlink_send+0x7b/0xa0 [ 122.963644][ C0] netlink_sendmsg+0xa0a/0xd20 [ 122.968246][ C0] ? netlink_getsockopt+0x560/0x560 [ 122.973285][ C0] ? security_socket_sendmsg+0x82/0xb0 [ 122.978661][ C0] ? netlink_getsockopt+0x560/0x560 [ 122.983697][ C0] ____sys_sendmsg+0x59e/0x8f0 [ 122.988307][ C0] ? __sys_sendmsg_sock+0x40/0x40 [ 122.993156][ C0] ? import_iovec+0xe5/0x120 [ 122.997582][ C0] ___sys_sendmsg+0x252/0x2e0 [ 123.002110][ C0] ? __sys_sendmsg+0x260/0x260 [ 123.006697][ C0] ? finish_task_switch+0x167/0x7b0 [ 123.011734][ C0] ? __schedule+0xcc6/0x1580 [ 123.016157][ C0] ? __kasan_check_write+0x14/0x20 [ 123.021103][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 123.026050][ C0] ? __kasan_check_read+0x11/0x20 [ 123.030911][ C0] ? __fdget+0x179/0x240 [ 123.034991][ C0] __se_sys_sendmsg+0x19a/0x260 [ 123.039678][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 123.044711][ C0] ? __x64_sys_sendmsg+0x90/0x90 [ 123.049488][ C0] __x64_sys_sendmsg+0x7b/0x90 [ 123.054087][ C0] do_syscall_64+0x3d/0xb0 [ 123.058368][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 123.064067][ C0] RIP: 0033:0x7f06b1ac8fc9 [ 123.068339][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 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 [ 123.087768][ C0] RSP: 002b:00007ffd2438e668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 123.096006][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f06b1ac8fc9 [ 123.103820][ C0] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 123.111630][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005555556fa610 [ 123.119439][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 123.127342][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 123.135156][ C0] [ 265.045291][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz-executor324:296] [ 265.053705][ C0] Modules linked in: [ 265.057433][ C0] CPU: 0 PID: 296 Comm: syz-executor324 Not tainted 5.15.123-syzkaller-00688-g83c56fbab45d #0 [ 265.067588][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 265.077485][ C0] RIP: 0010:kvm_wait+0x147/0x180 [ 265.082264][ C0] 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 6b 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 [ 265.102151][ C0] RSP: 0018:ffffc900009c6b00 EFLAGS: 00000246 [ 265.108036][ C0] RAX: 0000000000000003 RBX: 1ffff92000138d64 RCX: ffffffff8154cfdf [ 265.115845][ C0] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffffffff86f3c3ec [ 265.123659][ C0] RBP: ffffc900009c6bb0 R08: dffffc0000000000 R09: fffffbfff0de787e [ 265.131469][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 265.139287][ C0] R13: ffffffff86f3c3ec R14: 0000000000000003 R15: 1ffff92000138d68 [ 265.147224][ C0] FS: 00005555556f9380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 265.155981][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 265.162578][ C0] CR2: 0000000020002114 CR3: 000000011e15a000 CR4: 00000000003506b0 [ 265.170386][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 265.178195][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 265.186011][ C0] Call Trace: [ 265.189138][ C0] [ 265.191823][ C0] ? show_regs+0x58/0x60 [ 265.195900][ C0] ? watchdog_timer_fn+0x4b1/0x5f0 [ 265.200880][ C0] ? proc_watchdog_cpumask+0xd0/0xd0 [ 265.205967][ C0] ? __hrtimer_run_queues+0x41a/0xad0 [ 265.211177][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 265.216124][ C0] ? clockevents_program_event+0x22f/0x300 [ 265.221776][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 265.227666][ C0] ? hrtimer_interrupt+0x40c/0xaa0 [ 265.232621][ C0] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 265.238519][ C0] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 265.244159][ C0] [ 265.246936][ C0] [ 265.249711][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 265.255701][ C0] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 265.261800][ C0] ? kvm_wait+0x147/0x180 [ 265.265943][ C0] ? asm_sysvec_call_function_single+0x1b/0x20 [ 265.271932][ C0] ? kvm_arch_para_hints+0x30/0x30 [ 265.276884][ C0] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 265.282958][ C0] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 [ 265.288858][ C0] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 265.295104][ C0] ? __kmalloc+0x13a/0x270 [ 265.299358][ C0] ? kvmalloc_node+0x1f0/0x4d0 [ 265.303959][ C0] _raw_spin_lock_bh+0x139/0x1b0 [ 265.308732][ C0] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 265.313775][ C0] ? __kasan_check_read+0x11/0x20 [ 265.318632][ C0] get_dist_table+0x207/0x2e0 [ 265.323256][ C0] netem_change+0xa05/0x20c0 [ 265.327669][ C0] ? __x64_sys_sendmsg+0x7b/0x90 [ 265.332444][ C0] ? do_syscall_64+0x3d/0xb0 [ 265.336874][ C0] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 265.342777][ C0] ? netem_destroy+0xc0/0xc0 [ 265.347210][ C0] ? hrtimer_init+0x30/0x160 [ 265.351638][ C0] netem_init+0x5b/0xb0 [ 265.355617][ C0] ? qdisc_peek_dequeued+0x230/0x230 [ 265.360738][ C0] qdisc_create+0x890/0x12e0 [ 265.365166][ C0] ? qdisc_notify+0x370/0x370 [ 265.369676][ C0] ? __nla_parse+0x43/0x60 [ 265.373939][ C0] tc_modify_qdisc+0x8b4/0x14b0 [ 265.378617][ C0] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 265.384434][ C0] ? wait_for_completion_killable_timeout+0x10/0x10 [ 265.390854][ C0] ? ns_capable+0x89/0xe0 [ 265.395020][ C0] ? netlink_net_capable+0x125/0x160 [ 265.400149][ C0] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 265.405889][ C0] rtnetlink_rcv_msg+0x951/0xc40 [ 265.410645][ C0] ? rtnetlink_bind+0x80/0x80 [ 265.415331][ C0] ? avc_denied+0x13f/0x1b0 [ 265.419672][ C0] ? avc_has_perm_noaudit+0x2dd/0x430 [ 265.424880][ C0] ? avc_denied+0x1b0/0x1b0 [ 265.429218][ C0] ? avc_has_perm+0x16f/0x260 [ 265.433735][ C0] ? ____kasan_kmalloc+0xed/0x110 [ 265.438594][ C0] ? avc_has_perm_noaudit+0x430/0x430 [ 265.443797][ C0] ? do_syscall_64+0x3d/0xb0 [ 265.448224][ C0] netlink_rcv_skb+0x1cf/0x410 [ 265.452828][ C0] ? rtnetlink_bind+0x80/0x80 [ 265.457337][ C0] ? netlink_ack+0xb10/0xb10 [ 265.461779][ C0] ? __netlink_lookup+0x37b/0x3a0 [ 265.466715][ C0] rtnetlink_rcv+0x1c/0x20 [ 265.470968][ C0] netlink_unicast+0x8df/0xac0 [ 265.475567][ C0] ? netlink_detachskb+0x90/0x90 [ 265.480340][ C0] ? security_netlink_send+0x7b/0xa0 [ 265.485460][ C0] netlink_sendmsg+0xa0a/0xd20 [ 265.490075][ C0] ? netlink_getsockopt+0x560/0x560 [ 265.495093][ C0] ? security_socket_sendmsg+0x82/0xb0 [ 265.500388][ C0] ? netlink_getsockopt+0x560/0x560 [ 265.505422][ C0] ____sys_sendmsg+0x59e/0x8f0 [ 265.510024][ C0] ? __sys_sendmsg_sock+0x40/0x40 [ 265.514882][ C0] ? import_iovec+0xe5/0x120 [ 265.519310][ C0] ___sys_sendmsg+0x252/0x2e0 [ 265.523825][ C0] ? __sys_sendmsg+0x260/0x260 [ 265.528421][ C0] ? finish_task_switch+0x167/0x7b0 [ 265.533458][ C0] ? __schedule+0xcc6/0x1580 [ 265.537885][ C0] ? __kasan_check_write+0x14/0x20 [ 265.542859][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 265.547783][ C0] ? __kasan_check_read+0x11/0x20 [ 265.552639][ C0] ? __fdget+0x179/0x240 [ 265.556725][ C0] __se_sys_sendmsg+0x19a/0x260 [ 265.561405][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 265.566438][ C0] ? __x64_sys_sendmsg+0x90/0x90 [ 265.571212][ C0] __x64_sys_sendmsg+0x7b/0x90 [ 265.575811][ C0] do_syscall_64+0x3d/0xb0 [ 265.580070][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 265.585794][ C0] RIP: 0033:0x7f06b1ac8fc9 [ 265.590048][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 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 [ 265.609632][ C0] RSP: 002b:00007ffd2438e668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 265.617820][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f06b1ac8fc9 [ 265.625630][ C0] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 265.633442][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005555556fa610 [ 265.641425][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 265.649285][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 265.657064][ C0]