./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor45725733 <...> Warning: Permanently added '10.128.0.134' (ECDSA) to the list of known hosts. execve("./syz-executor45725733", ["./syz-executor45725733"], 0x7fff8d0b33e0 /* 10 vars */) = 0 brk(NULL) = 0x5555566eb000 brk(0x5555566ebc40) = 0x5555566ebc40 arch_prctl(ARCH_SET_FS, 0x5555566eb300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555566eb5d0) = 3615 set_robust_list(0x5555566eb5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f2c5fbce7d0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f2c5fbceea0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f2c5fbce870, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f2c5fbceea0}, 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-executor45725733", 4096) = 26 brk(0x55555670cc40) = 0x55555670cc40 brk(0x55555670d000) = 0x55555670d000 mprotect(0x7f2c5fc92000, 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=0x5555566eb5d0) = 3616 ./strace-static-x86_64: Process 3616 attached [pid 3616] set_robust_list(0x5555566eb5e0, 24) = 0 [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] setpgid(0, 0) = 0 [pid 3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1000", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] futex(0x7f2c5fc984cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2c5fb9e000 [pid 3616] mprotect(0x7f2c5fb9f000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3616] clone(child_stack=0x7f2c5fbbe3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3617 attached , parent_tid=[3617], tls=0x7f2c5fbbe700, child_tidptr=0x7f2c5fbbe9d0) = 3617 [pid 3616] futex(0x7f2c5fc984c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] set_robust_list(0x7f2c5fbbe9e0, 24) = 0 [pid 3617] mkdirat(AT_FDCWD, "./file0", 000) = 0 [pid 3617] futex(0x7f2c5fc984cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f2c5fc984c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 3617] futex(0x7f2c5fc984cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f2c5fc984c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 3617] futex(0x7f2c5fc984cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f2c5fc984c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... futex resumed>) = 1 [pid 3617] pivot_root("./file0", "./file0") = 0 [pid 3617] futex(0x7f2c5fc984cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f2c5fc984c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... futex resumed>) = 1 [pid 3617] read(3, "\x68\x00\x00\x00\x1a\x00\x00\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\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x73\x03\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 8224) = 104 [pid 3617] futex(0x7f2c5fc984cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f2c5fc984c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... futex resumed>) = 1 [pid 3617] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000 [pid 3616] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3616] futex(0x7f2c5fc984dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2c5fb7d000 [pid 3616] mprotect(0x7f2c5fb7e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3616] clone(child_stack=0x7f2c5fb9d3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3619 attached , parent_tid=[3619], tls=0x7f2c5fb9d700, child_tidptr=0x7f2c5fb9d9d0) = 3619 [pid 3616] futex(0x7f2c5fc984d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] set_robust_list(0x7f2c5fb9d9e0, 24) = 0 [pid 3619] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x1f\x00\x00\x00\x00\x00\x00\x00\x15\x30\x02\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 3619] futex(0x7f2c5fc984dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f2c5fc984d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] <... futex resumed>) = 1 [pid 3619] read(3, "\x2c\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x21\x0e\x00\x00\x00\x00\x00\x00\x64\x65\x76\x00", 8192) = 44 [pid 3619] futex(0x7f2c5fc984dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f2c5fc984d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f2c5fc984dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] <... futex resumed>) = 1 [pid 3619] write(3, "\x2c\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\xf4\x31\x03\x00\x00\x00\x00\x00\x00\x00\x28\x39\x5c\x00", 44 [pid 3616] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3616] futex(0x7f2c5fc984dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3616] futex(0x7f2c5fc984dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3616] exit_group(0) = ? [pid 3615] kill(-3616, SIGKILL) = 0 [pid 3615] kill(3616, SIGKILL) = 0 syzkaller login: [ 76.160916][ T15] cfg80211: failed to load regulatory.db [ 286.080605][ T29] INFO: task syslogd:2958 blocked for more than 143 seconds. [ 286.087985][ T29] Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 [ 286.095063][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.103765][ T29] task:syslogd state:D stack:25504 pid:2958 ppid:1 flags:0x00000000 [ 286.112970][ T29] Call Trace: [ 286.116232][ T29] [ 286.119147][ T29] __schedule+0xbd2/0x55b0 [ 286.123608][ T29] ? unwind_get_return_address+0x51/0x90 [ 286.129231][ T29] ? write_profile+0x4c0/0x4c0 [ 286.133999][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.139451][ T29] ? lock_release+0x5cb/0x810 [ 286.144142][ T29] ? io_schedule_timeout+0x140/0x140 [ 286.149429][ T29] ? do_raw_spin_lock+0x120/0x2a0 [ 286.154453][ T29] ? trace_contention_end+0x240/0x240 [ 286.159813][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.164757][ T29] schedule+0xda/0x1b0 [ 286.168811][ T29] rwsem_down_read_slowpath+0x59f/0xb10 [ 286.174410][ T29] ? down_write+0x220/0x220 [ 286.178899][ T29] ? lock_release+0x810/0x810 [ 286.183594][ T29] ? lock_release+0x5cb/0x810 [ 286.188255][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.193208][ T29] down_read+0xe2/0x450 [ 286.197365][ T29] ? rwsem_down_read_slowpath+0xb10/0xb10 [ 286.203089][ T29] ? lookup_fast+0x14e/0x520 [ 286.207665][ T29] walk_component+0x332/0x5a0 [ 286.212342][ T29] link_path_walk.part.0+0x74e/0xe20 [ 286.217614][ T29] ? walk_component+0x5a0/0x5a0 [ 286.222461][ T29] ? percpu_counter_add_batch+0xbd/0x180 [ 286.228123][ T29] path_openat+0x262/0x28f0 [ 286.232625][ T29] ? do_syscall_64+0x35/0xb0 [ 286.237228][ T29] ? path_lookupat+0x840/0x840 [ 286.242013][ T29] do_filp_open+0x1b6/0x400 [ 286.246521][ T29] ? may_open_dev+0xf0/0xf0 [ 286.251024][ T29] ? do_raw_spin_lock+0x120/0x2a0 [ 286.256038][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.260980][ T29] ? _raw_spin_unlock+0x24/0x40 [ 286.265820][ T29] ? alloc_fd+0x2d8/0x6d0 [ 286.270143][ T29] do_sys_openat2+0x16d/0x4c0 [ 286.274858][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.280310][ T29] ? build_open_flags+0x6f0/0x6f0 [ 286.285344][ T29] ? lock_downgrade+0x6e0/0x6e0 [ 286.290185][ T29] __x64_sys_openat+0x13f/0x1f0 [ 286.295050][ T29] ? __ia32_sys_open+0x1c0/0x1c0 [ 286.299991][ T29] ? syscall_enter_from_user_mode+0x22/0xb0 [ 286.305902][ T29] ? trace_hardirqs_on+0x2d/0x160 [ 286.310924][ T29] do_syscall_64+0x35/0xb0 [ 286.315324][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.321227][ T29] RIP: 0033:0x7f1961201697 [ 286.325625][ T29] RSP: 002b:00007fff6e700fb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 286.334032][ T29] RAX: ffffffffffffffda RBX: 0000560d470e9910 RCX: 00007f1961201697 [ 286.342013][ T29] RDX: 0000000000000d41 RSI: 00007f196138f99a RDI: 00000000ffffff9c [ 286.349978][ T29] RBP: 00007f196138f99a R08: 00007f1961291040 R09: 00007f19612910c0 [ 286.357943][ T29] R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000d41 [ 286.365918][ T29] R13: 0000560d470e9a50 R14: 0000000000000003 R15: 0000560d470e9a60 [ 286.373890][ T29] [ 286.376898][ T29] INFO: task udevd:2976 blocked for more than 143 seconds. [ 286.384088][ T29] Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 [ 286.391113][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.399768][ T29] task:udevd state:D stack:27648 pid:2976 ppid:1 flags:0x00000000 [ 286.409018][ T29] Call Trace: [ 286.412294][ T29] [ 286.415214][ T29] __schedule+0xbd2/0x55b0 [ 286.419617][ T29] ? __kasan_slab_alloc+0x7e/0x80 [ 286.424650][ T29] ? kmem_cache_alloc_lru+0x357/0x730 [ 286.430010][ T29] ? __d_alloc+0x32/0x960 [ 286.434340][ T29] ? link_path_walk.part.0+0x74e/0xe20 [ 286.439782][ T29] ? path_openat+0x262/0x28f0 [ 286.444459][ T29] ? lock_acquire+0x4fc/0x630 [ 286.449121][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.454620][ T29] ? lock_release+0x590/0x810 [ 286.459303][ T29] ? io_schedule_timeout+0x140/0x140 [ 286.464627][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.469562][ T29] schedule+0xda/0x1b0 [ 286.473812][ T29] schedule_preempt_disabled+0xf/0x20 [ 286.479183][ T29] __mutex_lock+0xa44/0x1350 [ 286.483807][ T29] ? fuse_lock_inode+0xce/0x100 [ 286.488680][ T29] ? mutex_lock_io_nested+0x1190/0x1190 [ 286.494238][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.499695][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.505293][ T29] ? lock_release+0x5cb/0x810 [ 286.509965][ T29] ? __lookup_slow+0x193/0x460 [ 286.514729][ T29] ? d_alloc_parallel+0x7af/0x1400 [ 286.519827][ T29] ? lock_downgrade+0x6e0/0x6e0 [ 286.524682][ T29] fuse_lock_inode+0xce/0x100 [ 286.529348][ T29] fuse_lookup.part.0+0x86/0x390 [ 286.534319][ T29] ? fuse_lookup_name+0x630/0x630 [ 286.539336][ T29] ? d_alloc_parallel+0x690/0x1400 [ 286.544466][ T29] ? __stack_depot_save+0x3a/0x560 [ 286.549590][ T29] ? __stack_depot_save+0x3a/0x560 [ 286.554719][ T29] ? __d_lookup_rcu+0x4c0/0x4c0 [ 286.559653][ T29] ? lockdep_init_map_type+0x21a/0x7f0 [ 286.565257][ T29] ? kasan_save_stack+0x31/0x40 [ 286.570106][ T29] ? lockdep_init_map_type+0x21a/0x7f0 [ 286.575572][ T29] fuse_lookup+0x70/0x90 [ 286.579810][ T29] __lookup_slow+0x24c/0x460 [ 286.584496][ T29] ? __lookup_hash+0x180/0x180 [ 286.589249][ T29] ? llc_shdlc_rcv_ack+0x170/0x1c0 [ 286.594560][ T29] ? llc_shdlc_rcv_ack+0x170/0x1c0 [ 286.599663][ T29] ? lookup_fast+0x14e/0x520 [ 286.604268][ T29] walk_component+0x33f/0x5a0 [ 286.608946][ T29] link_path_walk.part.0+0x74e/0xe20 [ 286.614266][ T29] ? walk_component+0x5a0/0x5a0 [ 286.619111][ T29] ? percpu_counter_add_batch+0xbd/0x180 [ 286.624778][ T29] path_openat+0x262/0x28f0 [ 286.629275][ T29] ? do_syscall_64+0x35/0xb0 [ 286.633868][ T29] ? path_lookupat+0x840/0x840 [ 286.638625][ T29] ? wp_page_copy+0x311/0x1c90 [ 286.643424][ T29] do_filp_open+0x1b6/0x400 [ 286.647918][ T29] ? may_open_dev+0xf0/0xf0 [ 286.652425][ T29] ? do_raw_spin_lock+0x120/0x2a0 [ 286.657439][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.662398][ T29] ? _raw_spin_unlock+0x24/0x40 [ 286.667243][ T29] ? alloc_fd+0x2d8/0x6d0 [ 286.671583][ T29] do_sys_openat2+0x16d/0x4c0 [ 286.676253][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.681730][ T29] ? build_open_flags+0x6f0/0x6f0 [ 286.686755][ T29] ? lock_downgrade+0x6e0/0x6e0 [ 286.691645][ T29] ? up_write+0x520/0x520 [ 286.695990][ T29] __x64_sys_openat+0x13f/0x1f0 [ 286.700858][ T29] ? __ia32_sys_open+0x1c0/0x1c0 [ 286.705788][ T29] ? syscall_enter_from_user_mode+0x22/0xb0 [ 286.711702][ T29] ? trace_hardirqs_on+0x2d/0x160 [ 286.716716][ T29] do_syscall_64+0x35/0xb0 [ 286.721169][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.727063][ T29] RIP: 0033:0x7f1da4d25697 [ 286.731492][ T29] RSP: 002b:00007ffff2ab0980 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 286.739888][ T29] RAX: ffffffffffffffda RBX: 000056529057e040 RCX: 00007f1da4d25697 [ 286.747896][ T29] RDX: 0000000000080141 RSI: 00005652905610d8 RDI: 00000000ffffff9c [ 286.755976][ T29] RBP: 00005652905610d8 R08: 00000000ffffffff R09: 0000000000000000 [ 286.763957][ T29] R10: 00000000000001a4 R11: 0000000000000246 R12: 0000000000080141 [ 286.771933][ T29] R13: ffffffffffffffff R14: 00000000ffffffff R15: 00000000ffffffff [ 286.779900][ T29] [ 286.782988][ T29] INFO: task syz-executor457:3615 blocked for more than 144 seconds. [ 286.791075][ T29] Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 [ 286.798076][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.806772][ T29] task:syz-executor457 state:D stack:28184 pid:3615 ppid:3612 flags:0x00004000 [ 286.815972][ T29] Call Trace: [ 286.819236][ T29] [ 286.822168][ T29] __schedule+0xbd2/0x55b0 [ 286.826573][ T29] ? unwind_get_return_address+0x51/0x90 [ 286.832211][ T29] ? write_profile+0x4c0/0x4c0 [ 286.836965][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.842448][ T29] ? lock_release+0x5cb/0x810 [ 286.847112][ T29] ? io_schedule_timeout+0x140/0x140 [ 286.852390][ T29] ? do_raw_spin_lock+0x120/0x2a0 [ 286.857398][ T29] ? trace_contention_end+0x240/0x240 [ 286.862784][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.867881][ T29] schedule+0xda/0x1b0 [ 286.871953][ T29] rwsem_down_read_slowpath+0x59f/0xb10 [ 286.877490][ T29] ? down_write+0x220/0x220 [ 286.881993][ T29] ? lock_release+0x810/0x810 [ 286.886659][ T29] ? lock_release+0x5cb/0x810 [ 286.891335][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.896262][ T29] down_read+0xe2/0x450 [ 286.900403][ T29] ? rwsem_down_read_slowpath+0xb10/0xb10 [ 286.906134][ T29] ? lookup_fast+0x14e/0x520 [ 286.910722][ T29] walk_component+0x332/0x5a0 [ 286.915384][ T29] link_path_walk.part.0+0x74e/0xe20 [ 286.920676][ T29] ? walk_component+0x5a0/0x5a0 [ 286.925510][ T29] ? percpu_counter_add_batch+0xbd/0x180 [ 286.931145][ T29] path_openat+0x262/0x28f0 [ 286.935632][ T29] ? do_syscall_64+0x35/0xb0 [ 286.940205][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 286.945669][ T29] ? lock_release+0x5cb/0x810 [ 286.950329][ T29] ? finish_task_switch.isra.0+0x2b0/0xc80 [ 286.956132][ T29] ? path_lookupat+0x840/0x840 [ 286.960941][ T29] do_filp_open+0x1b6/0x400 [ 286.965431][ T29] ? may_open_dev+0xf0/0xf0 [ 286.969921][ T29] ? do_raw_spin_lock+0x120/0x2a0 [ 286.974942][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 286.979869][ T29] ? _raw_spin_unlock+0x24/0x40 [ 286.984723][ T29] ? alloc_fd+0x2d8/0x6d0 [ 286.989043][ T29] do_sys_openat2+0x16d/0x4c0 [ 286.993718][ T29] ? ptrace_stop.part.0+0x5f4/0x8c0 [ 286.998901][ T29] ? build_open_flags+0x6f0/0x6f0 [ 287.003929][ T29] ? lock_release+0x5cb/0x810 [ 287.008589][ T29] ? ptrace_notify+0xfa/0x140 [ 287.013262][ T29] ? lock_downgrade+0x6e0/0x6e0 [ 287.018096][ T29] __x64_sys_openat+0x13f/0x1f0 [ 287.022963][ T29] ? __ia32_sys_open+0x1c0/0x1c0 [ 287.027893][ T29] ? _raw_spin_unlock_irq+0x2a/0x40 [ 287.033094][ T29] ? ptrace_notify+0xfa/0x140 [ 287.037758][ T29] do_syscall_64+0x35/0xb0 [ 287.042171][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 287.048054][ T29] RIP: 0033:0x7f2c5fc0cd78 [ 287.052462][ T29] RSP: 002b:00007ffd24e01940 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 287.060874][ T29] RAX: ffffffffffffffda RBX: 00007ffd24e019b0 RCX: 00007f2c5fc0cd78 [ 287.068827][ T29] RDX: 0000000000090800 RSI: 00007f2c5fc63004 RDI: 00000000ffffff9c [ 287.076792][ T29] RBP: 0000000000000e20 R08: 0000000000090800 R09: 00007f2c5fc63004 [ 287.084764][ T29] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffd24e01b34 [ 287.092726][ T29] R13: 00007ffd24e01b34 R14: 0000000000000000 R15: 0000000000000000 [ 287.100702][ T29] [ 287.103706][ T29] INFO: task syz-executor457:3617 blocked for more than 144 seconds. [ 287.111758][ T29] Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 [ 287.118755][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.127414][ T29] task:syz-executor457 state:D stack:27328 pid:3617 ppid:3615 flags:0x00004004 [ 287.136611][ T29] Call Trace: [ 287.139878][ T29] [ 287.142818][ T29] __schedule+0xbd2/0x55b0 [ 287.147223][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.152682][ T29] ? lock_acquire+0x4fc/0x630 [ 287.157342][ T29] ? lock_release+0x5cb/0x810 [ 287.162030][ T29] ? io_schedule_timeout+0x140/0x140 [ 287.167297][ T29] ? trace_hardirqs_on+0x2d/0x160 [ 287.172316][ T29] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 287.178114][ T29] schedule+0xda/0x1b0 [ 287.182185][ T29] request_wait_answer+0x46d/0x850 [ 287.187283][ T29] ? queue_interrupt+0x4d0/0x4d0 [ 287.192217][ T29] ? lock_downgrade+0x6e0/0x6e0 [ 287.197051][ T29] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 287.202866][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 287.207788][ T29] ? kill_fasync+0x1c/0x470 [ 287.212294][ T29] fuse_simple_request+0x71d/0xe50 [ 287.217395][ T29] fuse_lookup_name+0x280/0x630 [ 287.222251][ T29] ? fuse_create+0x30/0x30 [ 287.226655][ T29] ? mutex_lock_io_nested+0x1190/0x1190 [ 287.232196][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.237649][ T29] ? lock_downgrade+0x6e0/0x6e0 [ 287.242502][ T29] fuse_lookup.part.0+0xdf/0x390 [ 287.247427][ T29] ? fuse_lookup_name+0x630/0x630 [ 287.252454][ T29] ? kasan_save_stack+0x31/0x40 [ 287.257296][ T29] ? lockdep_init_map_type+0x21a/0x7f0 [ 287.262763][ T29] fuse_lookup+0x70/0x90 [ 287.266993][ T29] __lookup_slow+0x24c/0x460 [ 287.271583][ T29] ? __lookup_hash+0x180/0x180 [ 287.276333][ T29] ? llc_shdlc_rcv_ack+0x170/0x1c0 [ 287.281452][ T29] ? llc_shdlc_rcv_ack+0x170/0x1c0 [ 287.286555][ T29] ? lookup_fast+0x14e/0x520 [ 287.291220][ T29] walk_component+0x33f/0x5a0 [ 287.295899][ T29] link_path_walk.part.0+0x74e/0xe20 [ 287.301298][ T29] ? walk_component+0x5a0/0x5a0 [ 287.306141][ T29] ? percpu_counter_add_batch+0xbd/0x180 [ 287.311785][ T29] path_openat+0x262/0x28f0 [ 287.316291][ T29] ? do_syscall_64+0x35/0xb0 [ 287.320905][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.326364][ T29] ? lock_release+0x5cb/0x810 [ 287.331045][ T29] ? finish_task_switch.isra.0+0x2b0/0xc80 [ 287.336839][ T29] ? path_lookupat+0x840/0x840 [ 287.341610][ T29] do_filp_open+0x1b6/0x400 [ 287.346104][ T29] ? may_open_dev+0xf0/0xf0 [ 287.350630][ T29] ? do_raw_spin_lock+0x120/0x2a0 [ 287.355645][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 287.360595][ T29] ? _raw_spin_unlock+0x24/0x40 [ 287.365439][ T29] ? alloc_fd+0x2d8/0x6d0 [ 287.369762][ T29] do_sys_openat2+0x16d/0x4c0 [ 287.374446][ T29] ? ptrace_stop.part.0+0x5f4/0x8c0 [ 287.379648][ T29] ? build_open_flags+0x6f0/0x6f0 [ 287.384692][ T29] ? lock_release+0x5cb/0x810 [ 287.389361][ T29] ? ptrace_notify+0xfa/0x140 [ 287.394038][ T29] ? lock_downgrade+0x6e0/0x6e0 [ 287.398877][ T29] __x64_sys_openat+0x13f/0x1f0 [ 287.403736][ T29] ? __ia32_sys_open+0x1c0/0x1c0 [ 287.408665][ T29] ? _raw_spin_unlock_irq+0x2a/0x40 [ 287.413868][ T29] ? ptrace_notify+0xfa/0x140 [ 287.418534][ T29] do_syscall_64+0x35/0xb0 [ 287.422965][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 287.428852][ T29] RIP: 0033:0x7f2c5fc0d0a9 [ 287.433266][ T29] RSP: 002b:00007f2c5fbbe2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 287.441746][ T29] RAX: ffffffffffffffda RBX: 00007f2c5fc984c0 RCX: 00007f2c5fc0d0a9 [ 287.449724][ T29] RDX: 0000000000000042 RSI: 0000000020002080 RDI: ffffffffffffff9c [ 287.457695][ T29] RBP: 00007f2c5fc65084 R08: 0000000000000065 R09: 0000000000000000 [ 287.465667][ T29] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000065 [ 287.473664][ T29] R13: 00007f2c5fc650a8 R14: 31f4000000000002 R15: 00007f2c5fc984c8 [ 287.481675][ T29] [ 287.484686][ T29] INFO: task syz-executor457:3619 blocked for more than 144 seconds. [ 287.492744][ T29] Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 [ 287.499743][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.508419][ T29] task:syz-executor457 state:D stack:28520 pid:3619 ppid:3615 flags:0x00004004 [ 287.517627][ T29] Call Trace: [ 287.520957][ T29] [ 287.523875][ T29] __schedule+0xbd2/0x55b0 [ 287.528282][ T29] ? lock_release+0x5cb/0x810 [ 287.532971][ T29] ? __kernel_text_address+0x9/0x30 [ 287.538165][ T29] ? __stack_depot_save+0x260/0x560 [ 287.543383][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.548839][ T29] ? lock_release+0x5cb/0x810 [ 287.553517][ T29] ? io_schedule_timeout+0x140/0x140 [ 287.558787][ T29] ? do_raw_spin_lock+0x120/0x2a0 [ 287.563823][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 287.568750][ T29] schedule+0xda/0x1b0 [ 287.572815][ T29] rwsem_down_write_slowpath+0x5fc/0x12d0 [ 287.578527][ T29] ? rwlock_bug.part.0+0x90/0x90 [ 287.583464][ T29] ? ilookup5+0xb5/0x210 [ 287.587702][ T29] ? down_timeout+0x90/0x90 [ 287.592204][ T29] ? lock_acquire+0x4fc/0x630 [ 287.596866][ T29] ? lock_release+0x810/0x810 [ 287.601545][ T29] down_write_nested+0x1e8/0x220 [ 287.606472][ T29] ? up_read+0x20/0x20 [ 287.610541][ T29] ? down_read+0x198/0x450 [ 287.614947][ T29] ? rwsem_down_read_slowpath+0xb10/0xb10 [ 287.620675][ T29] fuse_reverse_inval_entry+0x51/0x550 [ 287.626126][ T29] fuse_dev_do_write+0x1aab/0x2c00 [ 287.631236][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.636685][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.642150][ T29] ? lock_acquire+0x4fc/0x630 [ 287.646811][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.652272][ T29] ? fuse_dev_splice_read+0x700/0x700 [ 287.657629][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.663121][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.668573][ T29] ? lock_acquire+0x4fc/0x630 [ 287.673246][ T29] ? rcu_read_lock_sched_held+0xd/0x70 [ 287.678696][ T29] ? aa_file_perm+0x595/0x1230 [ 287.683526][ T29] ? aa_path_link+0x2f0/0x2f0 [ 287.688189][ T29] ? finish_task_switch.isra.0+0x2b5/0xc80 [ 287.694005][ T29] ? trace_hardirqs_on+0x2d/0x160 [ 287.699029][ T29] ? finish_task_switch.isra.0+0x2b5/0xc80 [ 287.704839][ T29] ? __switch_to+0x5cc/0x10e0 [ 287.709502][ T29] ? __switch_to_asm+0x3a/0x60 [ 287.714304][ T29] fuse_dev_write+0x150/0x1e0 [ 287.718980][ T29] ? fuse_dev_splice_write+0xa70/0xa70 [ 287.724445][ T29] ? security_file_permission+0xab/0xd0 [ 287.730023][ T29] ? rw_verify_area+0xb6/0x1b0 [ 287.734790][ T29] vfs_write+0x9e9/0xdd0 [ 287.739025][ T29] ? vfs_read+0x930/0x930 [ 287.743367][ T29] ? __fget_files+0x26a/0x440 [ 287.748038][ T29] ? __fget_light+0xe5/0x270 [ 287.752629][ T29] ksys_write+0x127/0x250 [ 287.756950][ T29] ? __ia32_sys_read+0xb0/0xb0 [ 287.761731][ T29] ? _raw_spin_unlock_irq+0x2a/0x40 [ 287.766937][ T29] ? ptrace_notify+0xfa/0x140 [ 287.771614][ T29] do_syscall_64+0x35/0xb0 [ 287.776016][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 287.781923][ T29] RIP: 0033:0x7f2c5fc0d0a9 [ 287.786322][ T29] RSP: 002b:00007f2c5fb9d2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 287.794727][ T29] RAX: ffffffffffffffda RBX: 00007f2c5fc984d0 RCX: 00007f2c5fc0d0a9 [ 287.802741][ T29] RDX: 000000000000002c RSI: 00000000200000c0 RDI: 0000000000000003 [ 287.810709][ T29] RBP: 00007f2c5fc65084 R08: 0000000000000000 R09: 0000000000000000 [ 287.818662][ T29] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 287.826630][ T29] R13: 00007f2c5fc650a8 R14: 31f4000000000002 R15: 00007f2c5fc984d8 [ 287.834603][ T29] [ 287.837608][ T29] INFO: lockdep is turned off. [ 287.842362][ T29] NMI backtrace for cpu 0 [ 287.846669][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 [ 287.855931][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 287.865969][ T29] Call Trace: [ 287.869233][ T29] [ 287.872150][ T29] dump_stack_lvl+0xcd/0x134 [ 287.876753][ T29] nmi_cpu_backtrace.cold+0x24/0x18a [ 287.882031][ T29] nmi_trigger_cpumask_backtrace+0x32f/0x3c0 [ 287.888009][ T29] ? lapic_can_unplug_cpu+0x80/0x80 [ 287.893195][ T29] watchdog+0xc6b/0xfc0 [ 287.897343][ T29] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 287.903310][ T29] kthread+0x2e4/0x3a0 [ 287.907364][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.912981][ T29] ret_from_fork+0x1f/0x30 [ 287.917390][ T29] [ 287.920446][ T29] Sending NMI from CPU 0 to CPUs 1: [ 287.925658][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x6f/0xb0 [ 287.926656][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.926667][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 [ 287.926691][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 287.926702][ T29] Call Trace: [ 287.926709][ T29] [ 287.926716][ T29] dump_stack_lvl+0xcd/0x134 [ 287.926752][ T29] panic+0x2c8/0x622 [ 287.926787][ T29] ? panic_print_sys_info.part.0+0x110/0x110 [ 287.926813][ T29] ? preempt_schedule_thunk+0x16/0x18 [ 287.926849][ T29] ? watchdog.cold+0x130/0x158 [ 287.926891][ T29] watchdog.cold+0x141/0x158 [ 287.926932][ T29] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 287.926969][ T29] kthread+0x2e4/0x3a0 [ 287.926992][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.927021][ T29] ret_from_fork+0x1f/0x30 [ 287.927058][ T29] [ 287.933994][ T29] Kernel Offset: disabled [ 288.022520][ T29] Rebooting in 86400 seconds..