./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3192136994 <...> [ 102.570133][ T1144] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. execve("./syz-executor3192136994", ["./syz-executor3192136994"], 0x7ffed9fc7870 /* 10 vars */) = 0 brk(NULL) = 0x555555e4c000 brk(0x555555e4cd00) = 0x555555e4cd00 arch_prctl(ARCH_SET_FS, 0x555555e4c380) = 0 set_tid_address(0x555555e4c650) = 5062 set_robust_list(0x555555e4c660, 24) = 0 rseq(0x555555e4cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3192136994", 4096) = 28 getrandom("\x9c\x56\x23\xf9\x00\x48\x61\xad", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555e4cd00 brk(0x555555e6dd00) = 0x555555e6dd00 brk(0x555555e6e000) = 0x555555e6e000 mprotect(0x7fd06eb87000, 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 5063 attached , child_tidptr=0x555555e4c650) = 5063 [pid 5063] set_robust_list(0x555555e4c660, 24) = 0 [pid 5063] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5063] setsid() = 1 [pid 5063] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5063] unshare(CLONE_NEWNS) = 0 [pid 5063] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5063] unshare(CLONE_NEWIPC) = 0 [pid 5063] unshare(CLONE_NEWCGROUP) = 0 [pid 5063] unshare(CLONE_NEWUTS) = 0 [pid 5063] unshare(CLONE_SYSVSEM) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "16777216", 8) = 8 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "536870912", 9) = 9 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "8192", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5063] close(3) = 0 [pid 5063] getpid() = 1 [pid 5063] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 105.866591][ C1] dump_stack_lvl+0x125/0x1b0 [ 105.871312][ C1] lockdep_rcu_suspicious+0x20b/0x3b0 [ 105.876736][ C1] ? rcu_core+0x826/0x16b0 [ 105.881193][ C1] hash_ip4_destroy+0x320/0x420 [ 105.886080][ C1] ? rcu_core+0x826/0x16b0 [ 105.890538][ C1] ip_set_destroy_set+0x65/0x100 [ 105.895524][ C1] rcu_core+0x828/0x16b0 [ 105.899840][ C1] ? __pfx_rcu_core+0x10/0x10 [ 105.904588][ C1] ? mark_held_locks+0x9f/0xe0 [ 105.909398][ C1] __do_softirq+0x218/0x8de [ 105.914036][ C1] ? __pfx___do_softirq+0x10/0x10 [ 105.919115][ C1] irq_exit_rcu+0xb9/0x120 [ 105.923557][ C1] sysvec_apic_timer_interrupt+0x95/0xb0 [ 105.929319][ C1] [ 105.932258][ C1] [ 105.935194][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 105.941213][ C1] RIP: 0010:write_comp_data+0x0/0x90 [ 105.946521][ C1] Code: 48 8b 05 03 a7 77 7e 48 8b 80 f0 15 00 00 c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <49> 89 d2 49 89 f8 49 89 f1 65 48 8b 15 cf a6 77 7e 65 8b 05 d0 a6 [ 105.966501][ C1] RSP: 0018:ffffc900036ef2e0 EFLAGS: 00000246 [ 105.972596][ C1] RAX: 0000000000000001 RBX: ffffc900036ef368 RCX: ffffffff813c1ff2 [ 105.980618][ C1] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001 [ 105.988627][ C1] RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 [ 105.996648][ C1] R10: 0000000000000001 R11: 0000000000000002 R12: ffffc900036efa78 [ 106.004664][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001 [ 106.012686][ C1] ? unwind_next_frame+0x1aa2/0x2390 [ 106.018023][ C1] unwind_next_frame+0x1aa2/0x2390 [ 106.023176][ C1] ? call_netdevice_notifiers_info+0xbe/0x140 [ 106.029281][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 106.035824][ C1] arch_stack_walk+0x100/0x170 [ 106.040962][ C1] ? unregister_netdevice_many_notify+0x8ad/0x1a10 [ 106.047599][ C1] stack_trace_save+0x95/0xd0 [ 106.052782][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 106.058216][ C1] kasan_save_stack+0x33/0x60 [ 106.062936][ C1] ? kasan_save_stack+0x33/0x60 [ 106.067812][ C1] ? __kasan_record_aux_stack+0xba/0x110 [ 106.073477][ C1] ? kvfree_call_rcu+0x74/0xbe0 [ 106.078356][ C1] ? drop_sysctl_table+0x1d4/0x3c0 [ 106.083665][ C1] ? unregister_sysctl_table+0x41/0x60 [ 106.089236][ C1] ? neigh_sysctl_unregister+0x5f/0x80 [ 106.094760][ C1] ? addrconf_ifdown.isra.0+0x1638/0x1c60 [ 106.100528][ C1] ? addrconf_notify+0x223/0x18f0 [ 106.105669][ C1] ? notifier_call_chain+0xb9/0x3e0 [ 106.110898][ C1] ? call_netdevice_notifiers_info+0xbe/0x140 [ 106.117041][ C1] __kasan_record_aux_stack+0xba/0x110 [ 106.122542][ C1] kvfree_call_rcu+0x74/0xbe0 [ 106.127248][ C1] ? erase_header+0x109/0x1a0 [ 106.131967][ C1] drop_sysctl_table+0x1d4/0x3c0 [ 106.136933][ C1] ? __pfx_drop_sysctl_table+0x10/0x10 [ 106.142425][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 106.147489][ C1] ? do_raw_spin_lock+0x12d/0x2c0 [ 106.152566][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 106.158016][ C1] ? __pfx___might_resched+0x10/0x10 [ 106.163365][ C1] unregister_sysctl_table+0x41/0x60 [ 106.168691][ C1] neigh_sysctl_unregister+0x5f/0x80 [ 106.174020][ C1] addrconf_ifdown.isra.0+0x1638/0x1c60 [ 106.179682][ C1] ? __mutex_unlock_slowpath+0x164/0x650 [ 106.185389][ C1] ? __pfx_addrconf_ifdown.isra.0+0x10/0x10 [ 106.191440][ C1] addrconf_notify+0x223/0x18f0 [ 106.196326][ C1] ? ip6mr_device_event+0x1bc/0x230 [ 106.201558][ C1] notifier_call_chain+0xb9/0x3e0 [ 106.206612][ C1] ? __pfx_addrconf_notify+0x10/0x10 [ 106.211946][ C1] call_netdevice_notifiers_info+0xbe/0x140 [ 106.217874][ C1] unregister_netdevice_many_notify+0x8ad/0x1a10 [ 106.224243][ C1] ? __queue_work+0x67f/0x11d0 [ 106.229037][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 106.235834][ C1] ? queue_delayed_work_on+0xd2/0x130 [ 106.241304][ C1] unregister_netdevice_queue+0x307/0x3f0 [ 106.247068][ C1] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 106.253341][ C1] ? linkwatch_schedule_work+0x181/0x1c0 [ 106.259010][ C1] ? linkwatch_fire_event+0x6f/0x270 [ 106.264327][ C1] __tun_detach+0x1170/0x1470 [ 106.269051][ C1] ? __pfx_tun_chr_close+0x10/0x10 [ 106.274197][ C1] tun_chr_close+0xc8/0x250 [ 106.278737][ C1] __fput+0x270/0xb80 [ 106.282764][ C1] task_work_run+0x14e/0x250 [ 106.287428][ C1] ? __pfx_task_work_run+0x10/0x10 [ 106.292676][ C1] do_exit+0xa7d/0x2ac0 [ 106.296877][ C1] ? do_group_exit+0x1c3/0x2a0 [ 106.301690][ C1] ? __pfx_lock_release+0x10/0x10 [ 106.306952][ C1] ? do_raw_spin_lock+0x12d/0x2c0 [ 106.312005][ C1] ? __pfx_do_exit+0x10/0x10 [ 106.316632][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 106.322040][ C1] do_group_exit+0xd3/0x2a0 [ 106.326585][ C1] __x64_sys_exit_group+0x3e/0x50 [ 106.331635][ C1] do_syscall_64+0xd2/0x260 [ 106.336184][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 106.342113][ C1] RIP: 0033:0x7fd06eb0c289 [ 106.346553][ C1] Code: Unable to access opcode bytes at 0x7fd06eb0c25f. [ 106.353589][ C1] RSP: 002b:00007fff0b955448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 106.362032][ C1] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd06eb0c289 [ 106.370022][ C1] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 106.378014][ C1] RBP: 00007fd06eb8d390 R08: ffffffffffffffb8 R09: bb1414ac00000000 [ 106.386007][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd06eb8d390 [ 106.394001][ C1] R13: 0000000000000000 R14: 00007fd06eb8ee60 R15: 00007fd06eadd4c0 [pid 5063] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5063, si_uid=0, si_status=1, si_utime=0, si_stime=19 /* 0.19 s */} --- [ 106.402016][ C1] exit_group(0) = ? +++ exited with 0 +++