./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2287343759 <...> Warning: Permanently added '10.128.0.177' (ED25519) to the list of known hosts. execve("./syz-executor2287343759", ["./syz-executor2287343759"], 0x7ffec7eaabb0 /* 10 vars */) = 0 brk(NULL) = 0x555556caa000 brk(0x555556caad00) = 0x555556caad00 arch_prctl(ARCH_SET_FS, 0x555556caa380) = 0 set_tid_address(0x555556caa650) = 5066 set_robust_list(0x555556caa660, 24) = 0 rseq(0x555556caaca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2287343759", 4096) = 28 getrandom("\xc1\x20\xa4\x53\xe2\xfc\xf9\x9e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556caad00 brk(0x555556ccbd00) = 0x555556ccbd00 brk(0x555556ccc000) = 0x555556ccc000 mprotect(0x7fe842b28000, 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 5067 attached , child_tidptr=0x555556caa650) = 5067 [pid 5067] set_robust_list(0x555556caa660, 24) = 0 [pid 5067] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setsid() = 1 [pid 5067] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5067] unshare(CLONE_NEWNS) = 0 [pid 5067] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5067] unshare(CLONE_NEWIPC) = 0 [pid 5067] unshare(CLONE_NEWCGROUP) = 0 [pid 5067] unshare(CLONE_NEWUTS) = 0 [pid 5067] unshare(CLONE_SYSVSEM) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "16777216", 8) = 8 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "536870912", 9) = 9 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "8192", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5067] close(3) = 0 [pid 5067] getpid() = 1 [pid 5067] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5067] kill(-2, SIGKILL) = 0 [pid 5067] kill(2, SIGKILL) = 0 [pid 5067] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, 0x555556cab6f0 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(3, 0x555556cab6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [ 86.334359][ T780] cfg80211: failed to load regulatory.db [ 131.731866][ T18] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2640 jiffies s: 565 root: 0x2/. [ 131.756115][ T18] rcu: blocking rcu_node structures (internal RCU debug): [ 131.763640][ T18] Sending NMI from CPU 0 to CPUs 1: [ 131.768873][ C1] NMI backtrace for cpu 1 [ 131.768883][ C1] CPU: 1 PID: 5078 Comm: syz-executor228 Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0 [ 131.768905][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 131.768917][ C1] RIP: 0010:advance_sched+0xda/0xca0 [ 131.769009][ C1] Code: 89 c3 31 ff 89 c6 e8 e5 5e 1c f8 85 db 74 28 49 8d 7e c0 be ff ff ff ff e8 c3 f3 f0 01 89 c3 31 ff 89 c6 e8 c8 5e 1c f8 85 db <0f> 84 3d 07 00 00 e8 7b 5a 1c f8 eb 05 e8 74 5a 1c f8 4c 89 74 24 [ 131.769026][ C1] RSP: 0018:ffffc90000a08c90 EFLAGS: 00000002 [ 131.769045][ C1] RAX: 0000000000010203 RBX: 0000000000000001 RCX: ffff8880297b1e00 [ 131.769059][ C1] RDX: ffff8880297b1e00 RSI: 0000000000000001 RDI: 0000000000000000 [ 131.769073][ C1] RBP: dffffc0000000000 R08: ffffffff897761c8 R09: fffff52000141180 [ 131.769089][ C1] R10: dffffc0000000000 R11: fffff52000141180 R12: 0000000000000002 [ 131.769103][ C1] R13: ffffffff897760f0 R14: ffff8880116fd340 R15: ffff8880297b28c0 [ 131.769122][ C1] FS: 0000555556caa380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 131.769141][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 131.769155][ C1] CR2: 0000000020000600 CR3: 000000007bf9a000 CR4: 0000000000350ef0 [ 131.769172][ C1] Call Trace: [ 131.769182][ C1] [ 131.769190][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 131.769244][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 131.769286][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 131.769319][ C1] ? nmi_handle+0x2a/0x580 [ 131.769354][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 131.769381][ C1] ? nmi_handle+0x151/0x580 [ 131.769401][ C1] ? nmi_handle+0x2a/0x580 [ 131.769421][ C1] ? advance_sched+0xda/0xca0 [ 131.769454][ C1] ? default_do_nmi+0x63/0x160 [ 131.769494][ C1] ? exc_nmi+0x123/0x1f0 [ 131.769526][ C1] ? end_repeat_nmi+0xf/0x60 [ 131.769574][ C1] ? __pfx_advance_sched+0x10/0x10 [ 131.769609][ C1] ? advance_sched+0xd8/0xca0 [ 131.769643][ C1] ? advance_sched+0xda/0xca0 [ 131.769677][ C1] ? advance_sched+0xda/0xca0 [ 131.769711][ C1] ? advance_sched+0xda/0xca0 [ 131.769744][ C1] [ 131.769750][ C1] [ 131.769758][ C1] ? srso_return_thunk+0x5/0x5f [ 131.769796][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 131.769824][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 131.769856][ C1] ? __pfx_advance_sched+0x10/0x10 [ 131.769889][ C1] __hrtimer_run_queues+0x596/0xd00 [ 131.769929][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 131.769951][ C1] ? srso_return_thunk+0x5/0x5f [ 131.769981][ C1] ? ktime_get_update_offsets_now+0x411/0x430 [ 131.770023][ C1] hrtimer_interrupt+0x396/0x990 [ 131.770063][ C1] __sysvec_apic_timer_interrupt+0x109/0x3a0 [ 131.770097][ C1] sysvec_apic_timer_interrupt+0x92/0xb0 [ 131.770124][ C1] [ 131.770130][ C1] [ 131.770137][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 131.770172][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 [ 131.770200][ C1] Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 0e c3 82 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 c3 7d f1 f5 65 8b 05 04 a7 90 74 85 c0 74 43 48 c7 04 24 0e 36 [ 131.770216][ C1] RSP: 0018:ffffc90004336a60 EFLAGS: 00000206 [ 131.770236][ C1] RAX: ca46aab3a5a51b00 RBX: 1ffff92000866d50 RCX: ffffffff8171d07a [ 131.770253][ C1] RDX: dffffc0000000000 RSI: ffffffff8baab620 RDI: 0000000000000001 [ 131.770268][ C1] RBP: ffffc90004336af0 R08: ffffffff92c9659f R09: 1ffffffff2592cb3 [ 131.770283][ C1] R10: dffffc0000000000 R11: fffffbfff2592cb4 R12: dffffc0000000000 [ 131.770298][ C1] R13: 1ffff92000866d4c R14: ffffc90004336a80 R15: 0000000000000246 [ 131.770319][ C1] ? mark_lock+0x9a/0x350 [ 131.770347][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 131.770382][ C1] taprio_change+0x4912/0x57d0 [ 131.770434][ C1] ? __pfx_taprio_change+0x10/0x10 [ 131.770470][ C1] ? __pfx___might_resched+0x10/0x10 [ 131.770499][ C1] ? static_key_slow_inc_cpuslocked+0xdd/0x150 [ 131.770532][ C1] ? __pfx_lock_release+0x10/0x10 [ 131.770569][ C1] ? __pfx_do_sync_core+0x10/0x10 [ 131.770595][ C1] ? __pfx_do_sync_core+0x10/0x10 [ 131.770618][ C1] ? srso_return_thunk+0x5/0x5f [ 131.770647][ C1] ? on_each_cpu_cond_mask+0x62/0x80 [ 131.770693][ C1] ? srso_return_thunk+0x5/0x5f [ 131.770729][ C1] ? srso_return_thunk+0x5/0x5f [ 131.770770][ C1] taprio_init+0x9da/0xc80 [ 131.770799][ C1] ? ____sys_sendmsg+0x525/0x7d0 [ 131.770823][ C1] ? __sys_sendmsg+0x2b0/0x3a0 [ 131.770842][ C1] ? do_syscall_64+0xfb/0x240 [ 131.770879][ C1] ? __pfx_taprio_init+0x10/0x10 [ 131.770911][ C1] ? srso_return_thunk+0x5/0x5f [ 131.770940][ C1] ? lockdep_rtnl_is_held+0x26/0x40 [ 131.770971][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771001][ C1] ? qdisc_lookup+0x350/0x6b0 [ 131.771026][ C1] ? __pfx_taprio_init+0x10/0x10 [ 131.771055][ C1] qdisc_create+0x9d6/0x1190 [ 131.771084][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771120][ C1] ? __pfx_qdisc_create+0x10/0x10 [ 131.771147][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771182][ C1] tc_modify_qdisc+0xa26/0x1e40 [ 131.771219][ C1] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 131.771256][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771290][ C1] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 131.771314][ C1] rtnetlink_rcv_msg+0x887/0x1040 [ 131.771346][ C1] ? rtnetlink_rcv_msg+0x208/0x1040 [ 131.771373][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 131.771404][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771433][ C1] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 131.771468][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 131.771506][ C1] ? __local_bh_enable_ip+0x168/0x200 [ 131.771539][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771573][ C1] ? lockdep_hardirqs_on+0x98/0x140 [ 131.771597][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771627][ C1] ? __local_bh_enable_ip+0x168/0x200 [ 131.771659][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771689][ C1] ? __dev_queue_xmit+0x2c4/0x3b10 [ 131.771710][ C1] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 131.771749][ C1] ? __dev_queue_xmit+0x2c4/0x3b10 [ 131.771770][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771800][ C1] ? __dev_queue_xmit+0x15fd/0x3b10 [ 131.771829][ C1] ? __dev_queue_xmit+0x2c4/0x3b10 [ 131.771857][ C1] ? srso_return_thunk+0x5/0x5f [ 131.771886][ C1] ? ref_tracker_free+0x643/0x7e0 [ 131.771914][ C1] netlink_rcv_skb+0x1e5/0x430 [ 131.771944][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 131.771972][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 131.772018][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 131.772049][ C1] netlink_unicast+0x7ec/0x980 [ 131.772086][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 131.772111][ C1] ? __virt_addr_valid+0x44e/0x520 [ 131.772142][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772171][ C1] ? __phys_addr_symbol+0x2f/0x70 [ 131.772201][ C1] ? __check_object_size+0x4bb/0xa00 [ 131.772227][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772256][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772289][ C1] netlink_sendmsg+0xa3b/0xd70 [ 131.772329][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 131.772361][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772390][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 131.772416][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772445][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772474][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 131.772508][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 131.772537][ C1] __sock_sendmsg+0x223/0x270 [ 131.772573][ C1] ____sys_sendmsg+0x525/0x7d0 [ 131.772594][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772630][ C1] ? __pfx_____sys_sendmsg+0x10/0x10 [ 131.772654][ C1] ? do_raw_spin_lock+0x14e/0x370 [ 131.772682][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772719][ C1] __sys_sendmsg+0x2b0/0x3a0 [ 131.772742][ C1] ? __pfx___sys_sendmsg+0x10/0x10 [ 131.772772][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 131.772814][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772843][ C1] ? _raw_spin_unlock_irq+0x2e/0x50 [ 131.772866][ C1] ? srso_return_thunk+0x5/0x5f [ 131.772895][ C1] ? ptrace_notify+0x278/0x380 [ 131.772935][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 131.772970][ C1] ? do_syscall_64+0x108/0x240 [ 131.772998][ C1] ? srso_return_thunk+0x5/0x5f [ 131.773027][ C1] ? syscall_trace_enter+0x5e/0x150 [ 131.773050][ C1] do_syscall_64+0xfb/0x240 [ 131.773080][ C1] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 131.773110][ C1] RIP: 0033:0x7fe842aafae9 [ 131.773127][ 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 [ 131.773143][ C1] RSP: 002b:00007ffcaf8dff28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 131.773163][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe842aafae9 [ 131.773177][ C1] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 131.773190][ C1] RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000 [ 131.773203][ C1] R10: 0000000100000000 R11: 0000000000000246 R12: 00007ffcaf8dff80 [ 131.773217][ C1] R13: 0000000000000001 R14: 00007ffcaf8dff80 R15: 0000000000000003 [ 131.773241][ C1] [ 131.773250][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 4.376 msecs