./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor910694390 <...> Warning: Permanently added '10.128.0.191' (ED25519) to the list of known hosts. execve("./syz-executor910694390", ["./syz-executor910694390"], 0x7ffe817f7d00 /* 10 vars */) = 0 brk(NULL) = 0x555556a40000 brk(0x555556a40d00) = 0x555556a40d00 arch_prctl(ARCH_SET_FS, 0x555556a40380) = 0 set_tid_address(0x555556a40650) = 292 set_robust_list(0x555556a40660, 24) = 0 rseq(0x555556a40ca0, 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-executor910694390", 4096) = 27 getrandom("\x04\x14\x5d\x20\xe8\xfe\x4c\x9c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556a40d00 brk(0x555556a61d00) = 0x555556a61d00 brk(0x555556a62000) = 0x555556a62000 mprotect(0x7ff6d387f000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a40650) = 293 ./strace-static-x86_64: Process 293 attached [pid 293] set_robust_list(0x555556a40660, 24) = 0 [pid 293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 293] setpgid(0, 0) = 0 [pid 293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] write(3, "1000", 4) = 4 [pid 293] close(3) = 0 [pid 293] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 293] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 293] ioctl(5, SIOCGIFINDEX, {ifr_name="lo", ifr_ifindex=1}) = 0 [ 19.581228][ T30] audit: type=1400 audit(1692493670.326:66): avc: denied { execmem } for pid=292 comm="syz-executor910" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 293] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xac\x00\x00\x00\x24\x00\x0b\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x60\x00\x00\x00\x01\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\x7c\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\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x0b\x00\x00\x00\x00\x00"..., iov_len=172}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 292] kill(-293, SIGKILL) = 0 [pid 292] kill(293, 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, 0x555556a416f0 /* 2 entries */, 32768) = 48 [pid 292] getdents64(3, 0x555556a416f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [ 119.585829][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 119.592235][ C1] rcu: 1-...!: (10000 ticks this GP) idle=fad/1/0x4000000000000000 softirq=2222/2222 fqs=0 last_accelerate: 922b/b93c dyntick_enabled: 1 [ 119.606118][ C1] (t=10000 jiffies g=325 q=2407) [ 119.611150][ C1] rcu: rcu_preempt kthread timer wakeup didn't happen for 9999 jiffies! g325 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 119.623038][ C1] rcu: Possible timer handling issue on cpu=1 timer-softirq=337 [ 119.630591][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g325 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 119.641611][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 119.651418][ C1] rcu: RCU grace-period kthread stack dump: [ 119.657149][ C1] task:rcu_preempt state:I stack:27976 pid: 14 ppid: 2 flags:0x00004000 [ 119.666181][ C1] Call Trace: [ 119.669300][ C1] [ 119.672092][ C1] __schedule+0xcbe/0x1580 [ 119.676334][ C1] ? release_firmware_map_entry+0x18f/0x18f [ 119.682059][ C1] ? __kasan_check_write+0x14/0x20 [ 119.687314][ C1] schedule+0x11f/0x1e0 [ 119.691304][ C1] schedule_timeout+0x18c/0x370 [ 119.695991][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 119.701042][ C1] ? console_conditional_schedule+0x30/0x30 [ 119.706755][ C1] ? update_process_times+0x200/0x200 [ 119.711965][ C1] ? prepare_to_swait_event+0x308/0x320 [ 119.717341][ C1] rcu_gp_fqs_loop+0x29f/0xe60 [ 119.721945][ C1] ? debug_smp_processor_id+0x17/0x20 [ 119.727159][ C1] ? __note_gp_changes+0x4ab/0x920 [ 119.732096][ C1] ? rcu_gp_init+0xc20/0xc20 [ 119.736521][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 119.741559][ C1] ? rcu_gp_init+0x9c5/0xc20 [ 119.745988][ C1] rcu_gp_kthread+0xa4/0x350 [ 119.750412][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 119.755099][ C1] ? rcu_barrier_callback+0x50/0x50 [ 119.760134][ C1] ? __kasan_check_read+0x11/0x20 [ 119.764992][ C1] ? __kthread_parkme+0xb2/0x200 [ 119.769764][ C1] kthread+0x421/0x510 [ 119.773669][ C1] ? rcu_barrier_callback+0x50/0x50 [ 119.778705][ C1] ? kthread_blkcg+0xd0/0xd0 [ 119.783129][ C1] ret_from_fork+0x1f/0x30 [ 119.787386][ C1] [ 119.790246][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 119.796415][ C1] NMI backtrace for cpu 1 [ 119.800578][ C1] CPU: 1 PID: 293 Comm: syz-executor910 Not tainted 5.15.122-syzkaller-00676-g1463976ddc64 #0 [ 119.810645][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 119.820554][ C1] Call Trace: [ 119.823671][ C1] [ 119.826357][ C1] dump_stack_lvl+0x151/0x1b7 [ 119.830877][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 119.836337][ C1] dump_stack+0x15/0x17 [ 119.840337][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 119.845105][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 119.851091][ C1] ? panic+0x751/0x751 [ 119.854994][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 119.860904][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 119.866713][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 119.872618][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 119.878342][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 119.884333][ C1] ? rcu_check_gp_kthread_expired_fqs_timer+0x18e/0x230 [ 119.891103][ C1] rcu_sched_clock_irq+0xf92/0x18e0 [ 119.896133][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 119.902123][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 119.907162][ C1] update_process_times+0x198/0x200 [ 119.912192][ C1] tick_sched_timer+0x188/0x240 [ 119.916877][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 119.922266][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 119.927300][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 119.932245][ C1] ? clockevents_program_event+0x22f/0x300 [ 119.937887][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 119.943787][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 119.948564][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 119.954289][ C1] sysvec_apic_timer_interrupt+0x95/0xc0 [ 119.959752][ C1] [ 119.962527][ C1] [ 119.965312][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 119.971124][ C1] RIP: 0010:kvm_wait+0x147/0x180 [ 119.975895][ 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 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 [ 119.995339][ C1] RSP: 0018:ffffc9000074eb00 EFLAGS: 00000246 [ 120.002102][ C1] RAX: 0000000000000003 RBX: 1ffff920000e9d64 RCX: ffffffff8154ce3f [ 120.009919][ C1] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888114cf48ac [ 120.017726][ C1] RBP: ffffc9000074ebb0 R08: dffffc0000000000 R09: ffffed102299e916 [ 120.025536][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 120.033349][ C1] R13: ffff888114cf48ac R14: 0000000000000003 R15: 1ffff920000e9d68 [ 120.041162][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 120.047236][ C1] ? asm_sysvec_call_function_single+0x1b/0x20 [ 120.053228][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 120.058169][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 120.064254][ C1] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 [ 120.070151][ C1] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 120.076491][ C1] ? __kmalloc+0x13a/0x270 [ 120.080743][ C1] ? kvmalloc_node+0x1f0/0x4d0 [ 120.085343][ C1] _raw_spin_lock_bh+0x139/0x1b0 [ 120.090128][ C1] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 120.095156][ C1] ? __kasan_check_read+0x11/0x20 [ 120.100012][ C1] get_dist_table+0x207/0x2e0 [ 120.104526][ C1] netem_change+0xa05/0x20c0 [ 120.108950][ C1] ? __x64_sys_sendmsg+0x7b/0x90 [ 120.113722][ C1] ? do_syscall_64+0x3d/0xb0 [ 120.118148][ C1] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 120.124055][ C1] ? netem_destroy+0xc0/0xc0 [ 120.128484][ C1] ? hrtimer_init+0x30/0x160 [ 120.132904][ C1] netem_init+0x5b/0xb0 [ 120.136896][ C1] ? qdisc_peek_dequeued+0x230/0x230 [ 120.142016][ C1] qdisc_create+0x890/0x12e0 [ 120.146444][ C1] ? qdisc_notify+0x370/0x370 [ 120.150958][ C1] ? __nla_parse+0x43/0x60 [ 120.155207][ C1] tc_modify_qdisc+0x8b4/0x14b0 [ 120.159900][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 120.165626][ C1] ? wait_for_completion_killable_timeout+0x10/0x10 [ 120.172048][ C1] ? ns_capable+0x89/0xe0 [ 120.176215][ C1] ? netlink_net_capable+0x125/0x160 [ 120.181333][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 120.187064][ C1] rtnetlink_rcv_msg+0x951/0xc40 [ 120.191838][ C1] ? rtnetlink_bind+0x80/0x80 [ 120.196367][ C1] ? avc_denied+0x13f/0x1b0 [ 120.200701][ C1] ? avc_has_perm_noaudit+0x2dd/0x430 [ 120.205896][ C1] ? avc_denied+0x1b0/0x1b0 [ 120.210241][ C1] ? avc_has_perm+0x16f/0x260 [ 120.214747][ C1] ? ____kasan_kmalloc+0xed/0x110 [ 120.219608][ C1] ? avc_has_perm_noaudit+0x430/0x430 [ 120.224816][ C1] ? do_syscall_64+0x3d/0xb0 [ 120.229244][ C1] netlink_rcv_skb+0x1cf/0x410 [ 120.233844][ C1] ? rtnetlink_bind+0x80/0x80 [ 120.238366][ C1] ? netlink_ack+0xb10/0xb10 [ 120.242783][ C1] ? __netlink_lookup+0x37b/0x3a0 [ 120.247655][ C1] rtnetlink_rcv+0x1c/0x20 [ 120.251894][ C1] netlink_unicast+0x8df/0xac0 [ 120.256495][ C1] ? netlink_detachskb+0x90/0x90 [ 120.261267][ C1] ? security_netlink_send+0x7b/0xa0 [ 120.266389][ C1] netlink_sendmsg+0xa0a/0xd20 [ 120.270989][ C1] ? netlink_getsockopt+0x560/0x560 [ 120.276022][ C1] ? security_socket_sendmsg+0x82/0xb0 [ 120.281318][ C1] ? netlink_getsockopt+0x560/0x560 [ 120.286354][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 120.290952][ C1] ? __sys_sendmsg_sock+0x40/0x40 [ 120.295814][ C1] ? import_iovec+0xe5/0x120 [ 120.300238][ C1] ___sys_sendmsg+0x252/0x2e0 [ 120.304753][ C1] ? __sys_sendmsg+0x260/0x260 [ 120.309351][ C1] ? finish_task_switch+0x167/0x7b0 [ 120.314383][ C1] ? __schedule+0xcc6/0x1580 [ 120.318813][ C1] ? __kasan_check_write+0x14/0x20 [ 120.323760][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 120.328707][ C1] ? __kasan_check_read+0x11/0x20 [ 120.333570][ C1] ? __fdget+0x179/0x240 [ 120.337646][ C1] __se_sys_sendmsg+0x19a/0x260 [ 120.342330][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 120.347365][ C1] ? __x64_sys_sendmsg+0x90/0x90 [ 120.352149][ C1] ? __kasan_check_read+0x11/0x20 [ 120.356999][ C1] __x64_sys_sendmsg+0x7b/0x90 [ 120.361600][ C1] do_syscall_64+0x3d/0xb0 [ 120.365861][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 120.371580][ C1] RIP: 0033:0x7ff6d380bc39 [ 120.375845][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 [ 120.395273][ C1] RSP: 002b:00007ffe7a9d6cb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 120.403519][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff6d380bc39 [ 120.411332][ C1] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 [ 120.419140][ C1] RBP: 0000000000003a28 R08: 0000000000000000 R09: 0000000000000006 [ 120.426953][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 120.434762][ C1] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 120.442579][ C1] [ 120.445458][ C1] NMI backtrace for cpu 1 [ 120.449606][ C1] CPU: 1 PID: 293 Comm: syz-executor910 Not tainted 5.15.122-syzkaller-00676-g1463976ddc64 #0 [ 120.459675][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 120.469570][ C1] Call Trace: [ 120.472694][ C1] [ 120.475384][ C1] dump_stack_lvl+0x151/0x1b7 [ 120.479899][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 120.485365][ C1] ? ttwu_do_wakeup+0x187/0x430 [ 120.490050][ C1] dump_stack+0x15/0x17 [ 120.494044][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 120.498818][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 120.504805][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 120.510100][ C1] ? __kasan_check_write+0x14/0x20 [ 120.515047][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 120.519734][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 120.525637][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 120.531452][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 120.537357][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 120.543080][ C1] rcu_dump_cpu_stacks+0x1d8/0x330 [ 120.548027][ C1] rcu_sched_clock_irq+0xf97/0x18e0 [ 120.553061][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 120.559172][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 120.564200][ C1] update_process_times+0x198/0x200 [ 120.569237][ C1] tick_sched_timer+0x188/0x240 [ 120.573917][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 120.579299][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 120.584338][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 120.589281][ C1] ? clockevents_program_event+0x22f/0x300 [ 120.594921][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 120.600825][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 120.605598][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 120.611326][ C1] sysvec_apic_timer_interrupt+0x95/0xc0 [ 120.616794][ C1] [ 120.619572][ C1] [ 120.622348][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 120.628174][ C1] RIP: 0010:kvm_wait+0x147/0x180 [ 120.632935][ 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 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 [ 120.652379][ C1] RSP: 0018:ffffc9000074eb00 EFLAGS: 00000246 [ 120.658285][ C1] RAX: 0000000000000003 RBX: 1ffff920000e9d64 RCX: ffffffff8154ce3f [ 120.666091][ C1] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888114cf48ac [ 120.673910][ C1] RBP: ffffc9000074ebb0 R08: dffffc0000000000 R09: ffffed102299e916 [ 120.681717][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 120.689524][ C1] R13: ffff888114cf48ac R14: 0000000000000003 R15: 1ffff920000e9d68 [ 120.697337][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 120.703411][ C1] ? asm_sysvec_call_function_single+0x1b/0x20 [ 120.709400][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 120.714346][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 120.720429][ C1] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 [ 120.726327][ C1] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 120.732572][ C1] ? __kmalloc+0x13a/0x270 [ 120.736829][ C1] ? kvmalloc_node+0x1f0/0x4d0 [ 120.741426][ C1] _raw_spin_lock_bh+0x139/0x1b0 [ 120.746202][ C1] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 120.751238][ C1] ? __kasan_check_read+0x11/0x20 [ 120.756095][ C1] get_dist_table+0x207/0x2e0 [ 120.760609][ C1] netem_change+0xa05/0x20c0 [ 120.765035][ C1] ? __x64_sys_sendmsg+0x7b/0x90 [ 120.769806][ C1] ? do_syscall_64+0x3d/0xb0 [ 120.774235][ C1] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 120.780136][ C1] ? netem_destroy+0xc0/0xc0 [ 120.784566][ C1] ? hrtimer_init+0x30/0x160 [ 120.788992][ C1] netem_init+0x5b/0xb0 [ 120.792980][ C1] ? qdisc_peek_dequeued+0x230/0x230 [ 120.798100][ C1] qdisc_create+0x890/0x12e0 [ 120.802537][ C1] ? qdisc_notify+0x370/0x370 [ 120.807043][ C1] ? __nla_parse+0x43/0x60 [ 120.811295][ C1] tc_modify_qdisc+0x8b4/0x14b0 [ 120.815987][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 120.821715][ C1] ? wait_for_completion_killable_timeout+0x10/0x10 [ 120.828135][ C1] ? ns_capable+0x89/0xe0 [ 120.832297][ C1] ? netlink_net_capable+0x125/0x160 [ 120.837417][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 120.843145][ C1] rtnetlink_rcv_msg+0x951/0xc40 [ 120.847928][ C1] ? rtnetlink_bind+0x80/0x80 [ 120.852465][ C1] ? avc_denied+0x13f/0x1b0 [ 120.856776][ C1] ? avc_has_perm_noaudit+0x2dd/0x430 [ 120.861985][ C1] ? avc_denied+0x1b0/0x1b0 [ 120.866321][ C1] ? avc_has_perm+0x16f/0x260 [ 120.870833][ C1] ? ____kasan_kmalloc+0xed/0x110 [ 120.875691][ C1] ? avc_has_perm_noaudit+0x430/0x430 [ 120.880902][ C1] ? do_syscall_64+0x3d/0xb0 [ 120.885331][ C1] netlink_rcv_skb+0x1cf/0x410 [ 120.889927][ C1] ? rtnetlink_bind+0x80/0x80 [ 120.895047][ C1] ? netlink_ack+0xb10/0xb10 [ 120.899473][ C1] ? __netlink_lookup+0x37b/0x3a0 [ 120.904335][ C1] rtnetlink_rcv+0x1c/0x20 [ 120.908589][ C1] netlink_unicast+0x8df/0xac0 [ 120.913186][ C1] ? netlink_detachskb+0x90/0x90 [ 120.917960][ C1] ? security_netlink_send+0x7b/0xa0 [ 120.923081][ C1] netlink_sendmsg+0xa0a/0xd20 [ 120.927797][ C1] ? netlink_getsockopt+0x560/0x560 [ 120.932827][ C1] ? security_socket_sendmsg+0x82/0xb0 [ 120.938119][ C1] ? netlink_getsockopt+0x560/0x560 [ 120.943154][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 120.947754][ C1] ? __sys_sendmsg_sock+0x40/0x40 [ 120.952614][ C1] ? import_iovec+0xe5/0x120 [ 120.957039][ C1] ___sys_sendmsg+0x252/0x2e0 [ 120.961552][ C1] ? __sys_sendmsg+0x260/0x260 [ 120.966150][ C1] ? finish_task_switch+0x167/0x7b0 [ 120.971272][ C1] ? __schedule+0xcc6/0x1580 [ 120.975698][ C1] ? __kasan_check_write+0x14/0x20 [ 120.980645][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 120.985594][ C1] ? __kasan_check_read+0x11/0x20 [ 120.990452][ C1] ? __fdget+0x179/0x240 [ 120.994531][ C1] __se_sys_sendmsg+0x19a/0x260 [ 120.999222][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 121.004254][ C1] ? __x64_sys_sendmsg+0x90/0x90 [ 121.009026][ C1] ? __kasan_check_read+0x11/0x20 [ 121.013888][ C1] __x64_sys_sendmsg+0x7b/0x90 [ 121.018660][ C1] do_syscall_64+0x3d/0xb0 [ 121.022937][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 121.028642][ C1] RIP: 0033:0x7ff6d380bc39 [ 121.032894][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 [ 121.052335][ C1] RSP: 002b:00007ffe7a9d6cb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 121.060580][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff6d380bc39 [ 121.068396][ C1] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 [ 121.076203][ C1] RBP: 0000000000003a28 R08: 0000000000000000 R09: 0000000000000006 [ 121.084013][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 121.091835][ C1] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 121.099644][ C1] [ 265.020823][ C1] watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz-executor910:293] [ 265.029244][ C1] Modules linked in: [ 265.032976][ C1] CPU: 1 PID: 293 Comm: syz-executor910 Not tainted 5.15.122-syzkaller-00676-g1463976ddc64 #0 [ 265.043041][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 265.052935][ C1] RIP: 0010:kvm_wait+0x147/0x180 [ 265.057731][ 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 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 [ 265.077929][ C1] RSP: 0018:ffffc9000074eb00 EFLAGS: 00000246 [ 265.083827][ C1] RAX: 0000000000000003 RBX: 1ffff920000e9d64 RCX: ffffffff8154ce3f [ 265.091641][ C1] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888114cf48ac [ 265.099540][ C1] RBP: ffffc9000074ebb0 R08: dffffc0000000000 R09: ffffed102299e916 [ 265.107615][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 265.115422][ C1] R13: ffff888114cf48ac R14: 0000000000000003 R15: 1ffff920000e9d68 [ 265.123236][ C1] FS: 0000555556a40380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 265.132002][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 265.138432][ C1] CR2: 0000000000458e30 CR3: 000000011daa8000 CR4: 00000000003506a0 [ 265.146235][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 265.154052][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 265.161857][ C1] Call Trace: [ 265.164984][ C1] [ 265.167674][ C1] ? show_regs+0x58/0x60 [ 265.172254][ C1] ? watchdog_timer_fn+0x4b1/0x5f0 [ 265.177208][ C1] ? proc_watchdog_cpumask+0xd0/0xd0 [ 265.182327][ C1] ? __hrtimer_run_queues+0x41a/0xad0 [ 265.187534][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 265.192476][ C1] ? clockevents_program_event+0x22f/0x300 [ 265.198118][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 265.204021][ C1] ? hrtimer_interrupt+0x40c/0xaa0 [ 265.208978][ C1] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 265.214867][ C1] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 265.220509][ C1] [ 265.223285][ C1] [ 265.226065][ C1] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 265.232052][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 265.238127][ C1] ? kvm_wait+0x147/0x180 [ 265.242294][ C1] ? asm_sysvec_call_function_single+0x1b/0x20 [ 265.248284][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 265.253229][ C1] ? __pv_queued_spin_lock_slowpath+0x65f/0xc40 [ 265.259310][ C1] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 [ 265.265210][ C1] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 265.271458][ C1] ? __kmalloc+0x13a/0x270 [ 265.275711][ C1] ? kvmalloc_node+0x1f0/0x4d0 [ 265.280311][ C1] _raw_spin_lock_bh+0x139/0x1b0 [ 265.285082][ C1] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 265.290118][ C1] ? __kasan_check_read+0x11/0x20 [ 265.294979][ C1] get_dist_table+0x207/0x2e0 [ 265.299494][ C1] netem_change+0xa05/0x20c0 [ 265.303916][ C1] ? __x64_sys_sendmsg+0x7b/0x90 [ 265.308691][ C1] ? do_syscall_64+0x3d/0xb0 [ 265.313116][ C1] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 265.319020][ C1] ? netem_destroy+0xc0/0xc0 [ 265.323447][ C1] ? hrtimer_init+0x30/0x160 [ 265.327881][ C1] netem_init+0x5b/0xb0 [ 265.331863][ C1] ? qdisc_peek_dequeued+0x230/0x230 [ 265.336984][ C1] qdisc_create+0x890/0x12e0 [ 265.341414][ C1] ? qdisc_notify+0x370/0x370 [ 265.345925][ C1] ? __nla_parse+0x43/0x60 [ 265.350179][ C1] tc_modify_qdisc+0x8b4/0x14b0 [ 265.354871][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 265.360594][ C1] ? wait_for_completion_killable_timeout+0x10/0x10 [ 265.367015][ C1] ? ns_capable+0x89/0xe0 [ 265.371614][ C1] ? netlink_net_capable+0x125/0x160 [ 265.376739][ C1] ? qdisc_offload_graft_helper+0x2a0/0x2a0 [ 265.382463][ C1] rtnetlink_rcv_msg+0x951/0xc40 [ 265.387239][ C1] ? rtnetlink_bind+0x80/0x80 [ 265.391751][ C1] ? avc_denied+0x13f/0x1b0 [ 265.396089][ C1] ? avc_has_perm_noaudit+0x2dd/0x430 [ 265.401296][ C1] ? avc_denied+0x1b0/0x1b0 [ 265.405637][ C1] ? avc_has_perm+0x16f/0x260 [ 265.410152][ C1] ? ____kasan_kmalloc+0xed/0x110 [ 265.415010][ C1] ? avc_has_perm_noaudit+0x430/0x430 [ 265.420222][ C1] ? do_syscall_64+0x3d/0xb0 [ 265.424642][ C1] netlink_rcv_skb+0x1cf/0x410 [ 265.429245][ C1] ? rtnetlink_bind+0x80/0x80 [ 265.433759][ C1] ? netlink_ack+0xb10/0xb10 [ 265.438185][ C1] ? __netlink_lookup+0x37b/0x3a0 [ 265.443044][ C1] rtnetlink_rcv+0x1c/0x20 [ 265.447297][ C1] netlink_unicast+0x8df/0xac0 [ 265.451898][ C1] ? netlink_detachskb+0x90/0x90 [ 265.456670][ C1] ? security_netlink_send+0x7b/0xa0 [ 265.461795][ C1] netlink_sendmsg+0xa0a/0xd20 [ 265.466397][ C1] ? netlink_getsockopt+0x560/0x560 [ 265.471426][ C1] ? security_socket_sendmsg+0x82/0xb0 [ 265.476722][ C1] ? netlink_getsockopt+0x560/0x560 [ 265.481753][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 265.486354][ C1] ? __sys_sendmsg_sock+0x40/0x40 [ 265.491212][ C1] ? import_iovec+0xe5/0x120 [ 265.495644][ C1] ___sys_sendmsg+0x252/0x2e0 [ 265.500152][ C1] ? __sys_sendmsg+0x260/0x260 [ 265.504758][ C1] ? finish_task_switch+0x167/0x7b0 [ 265.509800][ C1] ? __schedule+0xcc6/0x1580 [ 265.514213][ C1] ? __kasan_check_write+0x14/0x20 [ 265.519158][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 265.524112][ C1] ? __kasan_check_read+0x11/0x20 [ 265.528972][ C1] ? __fdget+0x179/0x240 [ 265.533046][ C1] __se_sys_sendmsg+0x19a/0x260 [ 265.537734][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 265.542770][ C1] ? __x64_sys_sendmsg+0x90/0x90 [ 265.547542][ C1] ? __kasan_check_read+0x11/0x20 [ 265.552402][ C1] __x64_sys_sendmsg+0x7b/0x90 [ 265.557002][ C1] do_syscall_64+0x3d/0xb0 [ 265.561254][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 265.566983][ C1] RIP: 0033:0x7ff6d380bc39 [ 265.571270][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 [ 265.590677][ C1] RSP: 002b:00007ffe7a9d6cb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 265.598924][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff6d380bc39 [ 265.606730][ C1] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 [ 265.614541][ C1] RBP: 0000000000003a28 R08: 0000000000000000 R09: 0000000000000006 [ 265.622361][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 265.630166][ C1] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 265.637979][ C1]