./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2829577346 <...> Warning: Permanently added '10.128.0.231' (ED25519) to the list of known hosts. execve("./syz-executor2829577346", ["./syz-executor2829577346"], 0x7ffcffd2a4d0 /* 10 vars */) = 0 brk(NULL) = 0x5555559cf000 brk(0x5555559cfd00) = 0x5555559cfd00 arch_prctl(ARCH_SET_FS, 0x5555559cf380) = 0 set_tid_address(0x5555559cf650) = 5063 set_robust_list(0x5555559cf660, 24) = 0 rseq(0x5555559cfca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2829577346", 4096) = 28 getrandom("\xef\xe4\x9b\x83\x86\x11\x8e\x89", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555559cfd00 brk(0x5555559f0d00) = 0x5555559f0d00 brk(0x5555559f1000) = 0x5555559f1000 mprotect(0x7f6af8755000, 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./strace-static-x86_64: Process 5064 attached , child_tidptr=0x5555559cf650) = 5064 [pid 5064] set_robust_list(0x5555559cf660, 24) = 0 [pid 5064] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] setsid() = 1 [pid 5064] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5064] unshare(CLONE_NEWNS) = 0 [pid 5064] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5064] unshare(CLONE_NEWIPC) = 0 [pid 5064] unshare(CLONE_NEWCGROUP) = 0 [pid 5064] unshare(CLONE_NEWUTS) = 0 [pid 5064] unshare(CLONE_SYSVSEM) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "16777216", 8) = 8 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "536870912", 9) = 9 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "8192", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5064] close(3) = 0 [pid 5064] getpid() = 1 [pid 5064] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< b6 04 38 84 c0 0f 85 aa 0c 00 00 83 3d a7 1a d7 12 00 75 39 48 [ 171.444310][ C0] RSP: 0018:ffffc90000007910 EFLAGS: 00000806 [ 171.444324][ C0] RAX: 1ffffffff2890878 RBX: ffffffff92977846 RCX: ffffffff8171891a [ 171.444336][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: dffffc0000000000 [ 171.444346][ C0] RBP: ffff88802d07e478 R08: ffffffff92c8c427 R09: 1ffffffff2591884 [ 171.444357][ C0] R10: dffffc0000000000 R11: fffffbfff2591885 R12: 0000000000000001 [ 171.444368][ C0] R13: ffff88802d07d940 R14: 1ffff11005a0fc93 R15: ffff88802d07e498 [ 171.444379][ C0] FS: 00005555559cf380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 171.444393][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 171.444404][ C0] CR2: 0000000020000600 CR3: 000000001ec14000 CR4: 00000000003506f0 [ 171.444417][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 171.444426][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 171.444436][ C0] Call Trace: [ 171.444443][ C0] [ 171.444450][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 171.444470][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 171.444490][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 171.444511][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 171.444528][ C0] ? nmi_handle+0x14f/0x580 [ 171.444542][ C0] ? nmi_handle+0x2a/0x580 [ 171.444556][ C0] ? __lock_acquire+0xc26/0x1fd0 [ 171.444584][ C0] ? default_do_nmi+0x63/0x160 [ 171.444609][ C0] ? exc_nmi+0x121/0x210 [ 171.444623][ C0] ? end_repeat_nmi+0xf/0x60 [ 171.444650][ C0] ? mark_lock+0x9a/0x350 [ 171.444668][ C0] ? __lock_acquire+0xc26/0x1fd0 [ 171.444690][ C0] ? __lock_acquire+0xc26/0x1fd0 [ 171.444713][ C0] ? __lock_acquire+0xc26/0x1fd0 [ 171.444735][ C0] [ 171.444740][ C0] [ 171.444761][ C0] lock_acquire+0x1e3/0x530 [ 171.444783][ C0] ? debug_object_activate+0x16d/0x510 [ 171.444808][ C0] ? debug_objects_fill_pool+0x80/0x9b0 [ 171.444825][ C0] ? debug_objects_fill_pool+0x80/0x9b0 [ 171.444848][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 171.444870][ C0] ? __lock_acquire+0x1345/0x1fd0 [ 171.444899][ C0] ? __pfx_debug_objects_fill_pool+0x10/0x10 [ 171.444923][ C0] _raw_spin_lock_irqsave+0xd5/0x120 [ 171.444949][ C0] ? debug_object_activate+0x16d/0x510 [ 171.444970][ C0] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 171.444998][ C0] debug_object_activate+0x16d/0x510 [ 171.445021][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 171.445042][ C0] ? __pfx_debug_object_activate+0x10/0x10 [ 171.445065][ C0] ? advance_sched+0xa02/0xca0 [ 171.445097][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 171.445124][ C0] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 171.445146][ C0] enqueue_hrtimer+0x30/0x3a0 [ 171.445168][ C0] __hrtimer_run_queues+0x6b4/0xd00 [ 171.445190][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 171.445205][ C0] ? ktime_get_update_offsets_now+0x411/0x430 [ 171.445236][ C0] hrtimer_interrupt+0x396/0x990 [ 171.445266][ C0] __sysvec_apic_timer_interrupt+0x107/0x3a0 [ 171.445286][ C0] sysvec_apic_timer_interrupt+0x92/0xb0 [ 171.445316][ C0] [ 171.445323][ C0] [ 171.445328][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 171.445355][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 [ 171.445374][ C0] Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 3e 1a 84 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 f3 dc f2 f5 65 8b 05 94 4e 92 74 85 c0 74 43 48 c7 04 24 0e 36 [ 171.445385][ C0] RSP: 0018:ffffc90003abeca0 EFLAGS: 00000206 [ 171.445398][ C0] RAX: 6223e18b3a7db000 RBX: 1ffff92000757d98 RCX: ffffffff8171891a [ 171.445409][ C0] RDX: dffffc0000000000 RSI: ffffffff8baab660 RDI: 0000000000000001 [ 171.445425][ C0] RBP: ffffc90003abed30 R08: ffffffff92c8c4e7 R09: 1ffffffff259189c [ 171.445439][ C0] R10: dffffc0000000000 R11: fffffbfff259189d R12: dffffc0000000000 [ 171.445450][ C0] R13: 1ffff92000757d94 R14: ffffc90003abecc0 R15: 0000000000000246 [ 171.445464][ C0] ? mark_lock+0x9a/0x350 [ 171.445485][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 171.445521][ C0] taprio_change+0x4912/0x57d0 [ 171.445549][ C0] ? __pfx_taprio_change+0x10/0x10 [ 171.445597][ C0] ? nla_strcmp+0xd5/0x110 [ 171.445625][ C0] ? __pfx_taprio_change+0x10/0x10 [ 171.445646][ C0] tc_modify_qdisc+0x190d/0x1e40 [ 171.445681][ C0] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 171.445712][ C0] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 171.445734][ C0] rtnetlink_rcv_msg+0x885/0x1040 [ 171.445759][ C0] ? rtnetlink_rcv_msg+0x208/0x1040 [ 171.445778][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 171.445806][ C0] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 171.445827][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 171.445848][ C0] ? __local_bh_enable_ip+0x168/0x200 [ 171.445868][ C0] ? lockdep_hardirqs_on+0x98/0x140 [ 171.445896][ C0] ? __local_bh_enable_ip+0x168/0x200 [ 171.445924][ C0] ? __dev_queue_xmit+0x2c4/0x3b10 [ 171.445955][ C0] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 171.445977][ C0] ? __dev_queue_xmit+0x2c4/0x3b10 [ 171.446001][ C0] ? __dev_queue_xmit+0x15fd/0x3b10 [ 171.446021][ C0] ? __dev_queue_xmit+0x2c4/0x3b10 [ 171.446051][ C0] ? ref_tracker_free+0x643/0x7e0 [ 171.446072][ C0] netlink_rcv_skb+0x1e3/0x430 [ 171.446097][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 171.446116][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 171.446144][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 171.446164][ C0] netlink_unicast+0x7ea/0x980 [ 171.446192][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 171.446214][ C0] ? __virt_addr_valid+0x44e/0x520 [ 171.446233][ C0] ? __phys_addr_symbol+0x2f/0x70 [ 171.446255][ C0] ? __check_object_size+0x4bb/0xa00 [ 171.446278][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 171.446303][ C0] netlink_sendmsg+0xa3b/0xd70 [ 171.446326][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 171.446345][ C0] ? __import_iovec+0x552/0x890 [ 171.446373][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 171.446393][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 171.446422][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 171.446447][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 171.446460][ C0] __sock_sendmsg+0x221/0x270 [ 171.446485][ C0] ____sys_sendmsg+0x525/0x7d0 [ 171.446517][ C0] ? __pfx_____sys_sendmsg+0x10/0x10 [ 171.446541][ C0] ? do_raw_spin_lock+0x14e/0x370 [ 171.446565][ C0] __sys_sendmsg+0x2b0/0x3a0 [ 171.446586][ C0] ? __pfx___sys_sendmsg+0x10/0x10 [ 171.446607][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 171.446631][ C0] ? _raw_spin_unlock_irq+0x2e/0x50 [ 171.446653][ C0] ? ptrace_notify+0x278/0x380 [ 171.446680][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 171.446706][ C0] ? do_syscall_64+0x108/0x240 [ 171.446741][ C0] ? syscall_trace_enter+0x5e/0x150 [ 171.446767][ C0] do_syscall_64+0xf9/0x240 [ 171.446787][ C0] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 171.446806][ C0] RIP: 0033:0x7f6af86dcc29 [ 171.446823][ C0] 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 [ 171.446840][ C0] RSP: 002b:00007fff4b56d048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 171.446858][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6af86dcc29 [ 171.446871][ C0] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000006 [ 171.446885][ C0] RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000 [ 171.446904][ C0] R10: 0000000100000000 R11: 0000000000000246 R12: 00007fff4b56d0a0 [ 171.446918][ C0] R13: 0000000000000001 R14: 00007fff4b56d0a0 R15: 0000000000000003 [ 171.446934][ C0] [ 171.446940][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.723 msecs [ 171.447212][ C1] rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g6717 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 172.245800][ C1] rcu: Possible timer handling issue on cpu=0 timer-softirq=2020 [ 172.253606][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g6717 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 172.264895][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 172.274908][ C1] rcu: RCU grace-period kthread stack dump: [ 172.280809][ C1] task:rcu_preempt state:I stack:24656 pid:17 tgid:17 ppid:2 flags:0x00004000 [ 172.291004][ C1] Call Trace: [ 172.294312][ C1] [ 172.297262][ C1] __schedule+0x17d1/0x49f0 [ 172.301812][ C1] ? __pfx___schedule+0x10/0x10 [ 172.306683][ C1] ? __pfx_lock_release+0x10/0x10 [ 172.311733][ C1] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 172.317554][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 172.323897][ C1] ? schedule+0x8e/0x260 [ 172.328154][ C1] schedule+0x149/0x260 [ 172.332322][ C1] schedule_timeout+0x1bd/0x310 [ 172.337275][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 172.342659][ C1] ? __pfx_process_timeout+0x10/0x10 [ 172.347971][ C1] ? prepare_to_swait_event+0x32d/0x350 [ 172.353537][ C1] rcu_gp_fqs_loop+0x2df/0x1330 [ 172.358409][ C1] ? __pfx_rcu_gp_init+0x10/0x10 [ 172.363359][ C1] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 172.369262][ C1] ? lockdep_hardirqs_on+0x98/0x140 [ 172.374470][ C1] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 172.379775][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 172.385691][ C1] ? finish_swait+0xd3/0x1e0 [ 172.390296][ C1] rcu_gp_kthread+0xa7/0x3b0 [ 172.394915][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 172.400126][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 172.406036][ C1] ? __kthread_parkme+0x168/0x1d0 [ 172.411082][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 172.416307][ C1] kthread+0x2ef/0x390 [ 172.420385][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 172.425595][ C1] ? __pfx_kthread+0x10/0x10 [ 172.430194][ C1] ret_from_fork+0x4b/0x80 [ 172.434625][ C1] ? __pfx_kthread+0x10/0x10 [ 172.439232][ C1] ret_from_fork_asm+0x1b/0x30 [ 172.444023][ C1]