./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1866689444 <...> Warning: Permanently added '10.128.1.16' (ECDSA) to the list of known hosts. execve("./syz-executor1866689444", ["./syz-executor1866689444"], 0x7ffeeb7b2660 /* 10 vars */) = 0 brk(NULL) = 0x555555863000 brk(0x555555863d40) = 0x555555863d40 arch_prctl(ARCH_SET_FS, 0x555555863400) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555558636d0) = 323 set_robust_list(0x5555558636e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f76e3156b90, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f76e31560e0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f76e3156c30, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f76e31560e0}, 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-executor1866689444", 4096) = 28 brk(0x555555884d40) = 0x555555884d40 brk(0x555555885000) = 0x555555885000 mprotect(0x7f76e3220000, 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 getpid() = 323 openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 write(3, "10000000000", 11) = 11 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 write(3, "20", 2) = 2 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 write(3, "100", 3) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 write(3, "7 4 1 3", 7) = 7 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 write(3, "323", 3) = 3 close(3) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f76e3150710, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f76e31560e0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f76e3150710, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f76e31560e0}, NULL, 8) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 325 ./strace-static-x86_64: Process 325 attached [pid 325] set_robust_list(0x5555558636e0, 24) = 0 [pid 325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 325] setpgid(0, 0) = 0 [pid 325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 325] write(3, "1000", 4) = 4 [pid 325] close(3) = 0 [pid 325] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 325] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 325] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[326], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 326 [pid 325] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 326 attached [pid 326] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 326] memfd_create("syzkaller", 0) = 3 [pid 326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [ 19.867989][ T30] audit: type=1400 audit(1678938944.159:62): avc: denied { execmem } for pid=323 comm="syz-executor186" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.872348][ T30] audit: type=1400 audit(1678938944.159:63): avc: denied { integrity } for pid=323 comm="syz-executor186" lockdown_reason="debugfs access" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=lockdown permissive=1 [ 19.882163][ T30] audit: type=1400 audit(1678938944.169:64): avc: denied { read write } for pid=323 comm="syz-executor186" name="loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 19.886258][ T30] audit: type=1400 audit(1678938944.169:65): avc: denied { open } for pid=323 comm="syz-executor186" path="/dev/loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 19.898005][ T30] audit: type=1400 audit(1678938944.189:66): avc: denied { ioctl } for pid=323 comm="syz-executor186" path="/dev/loop0" dev="devtmpfs" ino=111 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 326] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 326] munmap(0x7f76dad25000, 32394836) = 0 [pid 326] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 326] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 326] close(3) = 0 [pid 326] mkdir("./bus", 0777) = 0 [ 20.030931][ T326] loop0: detected capacity change from 0 to 63271 [ 20.039468][ T30] audit: type=1400 audit(1678938944.329:67): avc: denied { mounton } for pid=325 comm="syz-executor186" path="/root/bus" dev="sda1" ino=1138 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 20.048884][ T326] F2FS-fs (loop0): Mismatch start address, segment0(512) cp_blkaddr(605) [ 20.070095][ T326] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [pid 326] mount("/dev/loop0", "./bus", "f2fs", MS_SYNCHRONOUS, "") = 0 [pid 326] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 326] chdir("./bus") = 0 [pid 326] ioctl(4, LOOP_CLR_FD) = 0 [pid 326] close(4) = 0 [pid 326] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 326] <... futex resumed>) = 1 [pid 326] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 4 [pid 326] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 20.079101][ T326] F2FS-fs (loop0): invalid crc value [ 20.085688][ T326] F2FS-fs (loop0): Found nat_bits in checkpoint [ 20.107112][ T326] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 20.114095][ T326] F2FS-fs (loop0): Mounted with checkpoint version = 753bd00b [pid 325] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 326] <... futex resumed>) = 1 [pid 326] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 326] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 326] <... futex resumed>) = 1 [pid 326] ftruncate(5, 33587195) = 0 [pid 326] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 326] <... futex resumed>) = 1 [ 20.121660][ T30] audit: type=1400 audit(1678938944.409:68): avc: denied { mount } for pid=325 comm="syz-executor186" name="/" dev="loop0" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 20.143878][ T30] audit: type=1400 audit(1678938944.409:69): avc: denied { write } for pid=325 comm="syz-executor186" name="/" dev="loop0" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [pid 326] sendfile(4, 5, NULL, 281474978811909 [pid 325] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 325] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 325] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76dcbe9000 [pid 325] mprotect(0x7f76dcbea000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 325] clone(child_stack=0x7f76dcc092f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[331], tls=0x7f76dcc09700, child_tidptr=0x7f76dcc099d0) = 331 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 331 attached [pid 331] set_robust_list(0x7f76dcc099e0, 24) = 0 [pid 331] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 6 [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] <... futex resumed>) = 1 [pid 331] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] <... futex resumed>) = 1 [pid 331] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] <... futex resumed>) = 1 [pid 331] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] open("./bus", O_RDONLY [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] <... open resumed>) = 7 [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] <... futex resumed>) = 0 [pid 331] <... futex resumed>) = 1 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] ioctl(7, F2FS_IOC_START_ATOMIC_WRITE [pid 325] <... futex resumed>) = 0 [ 20.166009][ T30] audit: type=1400 audit(1678938944.409:70): avc: denied { add_name } for pid=325 comm="syz-executor186" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 20.187040][ T30] audit: type=1400 audit(1678938944.409:71): avc: denied { create } for pid=325 comm="syz-executor186" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] <... ioctl resumed>, 0) = 0 [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 325] <... futex resumed>) = 0 [pid 325] futex(0x7f76e3226718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 325] futex(0x7f76e322671c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 331] futex(0x7f76e322671c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 325] <... futex resumed>) = 0 [ 20.241111][ T331] F2FS-fs (loop0): Unexpected flush for atomic writes: ino=4, npages=1 [pid 331] futex(0x7f76e3226718, FUTEX_WAIT_PRIVATE, 0, NULL [pid 325] exit_group(0) = ? [pid 331] <... futex resumed>) = ? [pid 326] <... sendfile resumed>) = ? [pid 326] +++ exited with 0 +++ [pid 331] +++ exited with 0 +++ [ 20.373815][ T326] syz-executor186 (326) used greatest stack depth: 20960 bytes left [ 20.379831][ T325] BUG: scheduling while atomic: syz-executor186/325/0x00000002 [ 20.389198][ T325] Modules linked in: [ 20.392893][ T325] Preemption disabled at: [ 20.392903][ T325] [] unmap_page_range+0xa2f/0x1ca0 [ 20.403601][ T325] CPU: 0 PID: 325 Comm: syz-executor186 Not tainted 5.15.94-syzkaller-03204-g5448b2fda85f #0 [ 20.413571][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 20.423441][ T325] Call Trace: [ 20.426575][ T325] [ 20.429460][ T325] dump_stack_lvl+0x151/0x1b7 [ 20.433950][ T325] ? unmap_page_range+0xa2f/0x1ca0 [ 20.438901][ T325] ? unmap_page_range+0xa2f/0x1ca0 [ 20.443946][ T325] ? io_uring_drop_tctx_refs+0x190/0x190 [ 20.449510][ T325] ? unmap_page_range+0xa2f/0x1ca0 [ 20.454439][ T325] dump_stack+0x15/0x17 [ 20.458557][ T325] __schedule_bug+0x195/0x260 [ 20.463073][ T325] ? ttwu_queue_wakelist+0x510/0x510 [ 20.468221][ T325] ? stack_trace_save+0x1c0/0x1c0 [ 20.473049][ T325] ? __kernel_text_address+0x9b/0x110 [ 20.478255][ T325] __schedule+0xdd0/0x1620 [ 20.482516][ T325] ? __kasan_check_write+0x14/0x20 [ 20.487455][ T325] ? release_firmware_map_entry+0x18b/0x18b [ 20.493187][ T325] ? __kasan_check_write+0x14/0x20 [ 20.498134][ T325] ? __mutex_add_waiter+0x1b5/0x310 [ 20.503172][ T325] ? __ww_mutex_check_waiters+0x350/0x350 [ 20.508723][ T325] schedule+0x11f/0x1e0 [ 20.512742][ T325] schedule_preempt_disabled+0x13/0x20 [ 20.518011][ T325] __mutex_lock+0x86a/0x13f0 [ 20.522435][ T325] ? __kasan_slab_alloc+0xb1/0xe0 [ 20.527299][ T325] ? slab_post_alloc_hook+0x53/0x2c0 [ 20.532418][ T325] ? kmem_cache_alloc+0xf5/0x200 [ 20.537190][ T325] ? do_group_exit+0x141/0x310 [ 20.541974][ T325] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 20.547878][ T325] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 20.554478][ T325] __mutex_lock_slowpath+0xe/0x10 [ 20.559332][ T325] mutex_lock+0x135/0x1e0 [ 20.563497][ T325] ? slab_post_alloc_hook+0x72/0x2c0 [ 20.568620][ T325] ? f2fs_register_inmem_page+0x13f/0x4b0 [ 20.574173][ T325] ? wait_for_completion_killable_timeout+0x10/0x10 [ 20.580622][ T325] ? kmem_cache_alloc+0xf5/0x200 [ 20.585371][ T325] f2fs_register_inmem_page+0x22c/0x4b0 [ 20.590811][ T325] f2fs_set_data_page_dirty+0x591/0x730 [ 20.596138][ T325] set_page_dirty+0x1a4/0x300 [ 20.600675][ T325] unmap_page_range+0xf33/0x1ca0 [ 20.605426][ T325] ? __activate_page+0xd24/0x1110 [ 20.610280][ T325] ? mmu_notifier_invalidate_range_end+0xe0/0xe0 [ 20.616443][ T325] ? pagevec_lru_move_fn+0x48d/0x520 [ 20.621650][ T325] ? __munlock_isolated_page+0x210/0x210 [ 20.627120][ T325] ? uprobe_munmap+0x18d/0x450 [ 20.631718][ T325] ? rotate_reclaimable_page+0x670/0x670 [ 20.637190][ T325] unmap_vmas+0x389/0x560 [ 20.641352][ T325] ? unmap_page_range+0x1ca0/0x1ca0 [ 20.646387][ T325] ? tlb_gather_mmu_fullmm+0x165/0x210 [ 20.651682][ T325] exit_mmap+0x3d8/0x6f0 [ 20.655760][ T325] ? vm_brk+0x30/0x30 [ 20.659585][ T325] ? uprobe_clear_state+0x2cd/0x320 [ 20.664632][ T325] __mmput+0x95/0x310 [ 20.668445][ T325] mmput+0x5b/0x170 [ 20.672081][ T325] do_exit+0xbb4/0x2b60 [ 20.676085][ T325] ? put_task_struct+0x80/0x80 [ 20.680685][ T325] ? native_smp_send_reschedule+0x83/0xa0 [ 20.686225][ T325] ? zap_other_threads+0x237/0x270 [ 20.691174][ T325] do_group_exit+0x141/0x310 [ 20.695620][ T325] __x64_sys_exit_group+0x3f/0x40 [ 20.700460][ T325] do_syscall_64+0x3d/0xb0 [ 20.704737][ T325] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 20.710443][ T325] RIP: 0033:0x7f76e319fbe9 [ 20.714692][ T325] Code: Unable to access opcode bytes at RIP 0x7f76e319fbbf. [ 20.721903][ T325] RSP: 002b:00007ffd49cfdce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 20.730140][ T325] RAX: ffffffffffffffda RBX: 00007f76e32263d0 RCX: 00007f76e319fbe9 [ 20.737955][ T325] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 20.745769][ T325] RBP: 0000000000000000 R08: ffffffffffffffb8 R09: 0000000800000015 [ 20.753576][ T325] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f76e32263d0 [ 20.761387][ T325] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 20.769203][ T325] [ 20.774147][ T325] ------------[ cut here ]------------ [ 20.779446][ T325] DEBUG_LOCKS_WARN_ON(val > preempt_count()) [ 20.779481][ T325] WARNING: CPU: 0 PID: 325 at kernel/sched/core.c:5673 preempt_count_sub+0xa8/0x160 [ 20.794490][ T325] Modules linked in: [ 20.798195][ T325] CPU: 0 PID: 325 Comm: syz-executor186 Tainted: G W 5.15.94-syzkaller-03204-g5448b2fda85f #0 [ 20.809585][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 20.819456][ T325] RIP: 0010:preempt_count_sub+0xa8/0x160 [ 20.824955][ T325] Code: 03 42 0f b6 04 30 84 c0 0f 85 86 00 00 00 83 3d f5 ca 78 05 00 75 d1 48 c7 c7 20 91 08 85 48 c7 c6 c0 91 08 85 e8 48 66 f5 ff <0f> 0b eb ba e8 8f 9e 0d 01 85 c0 74 b1 48 c7 c0 28 3c c5 86 48 c1 [ 20.844398][ T325] RSP: 0018:ffffc900009a7828 EFLAGS: 00010246 [ 20.850254][ T325] RAX: 384aca67b5260b00 RBX: 0000000000000001 RCX: ffff88811b09bb40 [ 20.858099][ T325] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.865864][ T325] RBP: ffffc900009a7838 R08: ffffffff8156a435 R09: ffffed103ee04e93 [ 20.873702][ T325] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 20.881501][ T325] R13: 0400000000000080 R14: dffffc0000000000 R15: 0000000020200000 [ 20.889444][ T325] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.898173][ T325] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.904572][ T325] CR2: 00007f76e31ea3c8 CR3: 000000000640f000 CR4: 00000000003506b0 [ 20.912422][ T325] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.920211][ T325] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.928043][ T325] Call Trace: [ 20.931130][ T325] [ 20.933914][ T325] _raw_spin_unlock+0x4d/0x70 [ 20.938451][ T325] unmap_page_range+0x1a8c/0x1ca0 [ 20.943287][ T325] ? __activate_page+0xd24/0x1110 [ 20.948171][ T325] ? mmu_notifier_invalidate_range_end+0xe0/0xe0 [ 20.954393][ T325] ? pagevec_lru_move_fn+0x48d/0x520 [ 20.959546][ T325] ? __munlock_isolated_page+0x210/0x210 [ 20.964981][ T325] ? uprobe_munmap+0x18d/0x450 [ 20.969870][ T325] ? rotate_reclaimable_page+0x670/0x670 [ 20.975399][ T325] unmap_vmas+0x389/0x560 [ 20.979591][ T325] ? unmap_page_range+0x1ca0/0x1ca0 [ 20.984600][ T325] ? tlb_gather_mmu_fullmm+0x165/0x210 [ 20.990106][ T325] exit_mmap+0x3d8/0x6f0 [ 20.994154][ T325] ? vm_brk+0x30/0x30 [ 20.997992][ T325] ? uprobe_clear_state+0x2cd/0x320 [ 21.003020][ T325] __mmput+0x95/0x310 [ 21.006851][ T325] mmput+0x5b/0x170 [ 21.010489][ T325] do_exit+0xbb4/0x2b60 [ 21.014458][ T325] ? put_task_struct+0x80/0x80 [ 21.019087][ T325] ? native_smp_send_reschedule+0x83/0xa0 [ 21.024610][ T325] ? zap_other_threads+0x237/0x270 [ 21.029581][ T325] do_group_exit+0x141/0x310 [ 21.034001][ T325] __x64_sys_exit_group+0x3f/0x40 [ 21.038869][ T325] do_syscall_64+0x3d/0xb0 [ 21.043097][ T325] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 21.048857][ T325] RIP: 0033:0x7f76e319fbe9 [ 21.053084][ T325] Code: Unable to access opcode bytes at RIP 0x7f76e319fbbf. [ 21.060305][ T325] RSP: 002b:00007ffd49cfdce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 21.068541][ T325] RAX: ffffffffffffffda RBX: 00007f76e32263d0 RCX: 00007f76e319fbe9 [pid 325] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=325, si_uid=0, si_status=0, si_utime=4, si_stime=74} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 333 ./strace-static-x86_64: Process 333 attached [pid 333] set_robust_list(0x5555558636e0, 24) = 0 [pid 333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 333] setpgid(0, 0) = 0 [pid 333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 333] write(3, "1000", 4) = 4 [pid 333] close(3) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 333] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 333] clone(child_stack=0x7f76e31452f0, 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 334 attached , parent_tid=[334], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 334 [pid 334] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 334] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 334] <... futex resumed>) = 0 [pid 334] memfd_create("syzkaller", 0) = 3 [pid 334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [ 21.076340][ T325] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 21.084199][ T325] RBP: 0000000000000000 R08: ffffffffffffffb8 R09: 0000000800000015 [ 21.091987][ T325] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f76e32263d0 [ 21.099799][ T325] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 21.107611][ T325] [ 21.110450][ T325] ---[ end trace 700aae2420ec127c ]--- [pid 334] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 334] munmap(0x7f76dad25000, 32394836) = 0 [pid 334] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 334] ioctl(4, LOOP_CLR_FD) = 0 [pid 334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 334] close(4) = 0 [pid 334] close(3) = 0 [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 334] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... open resumed>) = -1 EISDIR (Is a directory) [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 334] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 333] <... futex resumed>) = 0 [pid 334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 333] <... futex resumed>) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... open resumed>) = 3 [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 334] ftruncate(3, 33587195 [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] <... ftruncate resumed>) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] sendfile(-1, 3, NULL, 281474978811909 [pid 333] <... futex resumed>) = 0 [pid 334] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... futex resumed>) = 0 [pid 333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 334] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] <... open resumed>) = -1 EISDIR (Is a directory) [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 334] <... futex resumed>) = 0 [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 333] <... futex resumed>) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... close_range resumed>) = 0 [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] write(-1, NULL, 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 334] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 333] <... futex resumed>) = 0 [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... futex resumed>) = 0 [pid 333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 334] open("./bus", O_RDONLY [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... open resumed>) = 4 [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 334] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 333] <... futex resumed>) = 0 [pid 334] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 334] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 334] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 333] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 333] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 334] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 333] <... futex resumed>) = 0 [pid 334] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 333] exit_group(0) = ? [pid 334] <... futex resumed>) = ? [pid 334] +++ exited with 0 +++ [pid 333] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=333, si_uid=0, si_status=0, si_utime=3, si_stime=7} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 335 ./strace-static-x86_64: Process 335 attached [pid 335] set_robust_list(0x5555558636e0, 24) = 0 [pid 335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 335] setpgid(0, 0) = 0 [pid 335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 335] write(3, "1000", 4) = 4 [pid 335] close(3) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 335] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 335] clone(child_stack=0x7f76e31452f0, 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 336 attached , parent_tid=[336], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 336 [pid 336] set_robust_list(0x7f76e31459e0, 24 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 336] <... set_robust_list resumed>) = 0 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 336] memfd_create("syzkaller", 0) = 3 [pid 336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 336] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 336] munmap(0x7f76dad25000, 32394836) = 0 [pid 336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 336] ioctl(4, LOOP_CLR_FD) = 0 [pid 336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 336] close(4) = 0 [pid 336] close(3) = 0 [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 336] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] <... futex resumed>) = 0 [pid 336] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] <... futex resumed>) = 1 [pid 336] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] <... futex resumed>) = 1 [pid 336] ftruncate(3, 33587195) = 0 [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] <... futex resumed>) = 1 [pid 336] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] <... futex resumed>) = 0 [pid 336] <... futex resumed>) = 1 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 336] open("./bus", O_RDONLY [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] <... open resumed>) = 4 [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 336] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] <... futex resumed>) = 0 [pid 335] exit_group(0) = ? [pid 336] +++ exited with 0 +++ [pid 335] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=335, si_uid=0, si_status=0, si_utime=2, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 337 ./strace-static-x86_64: Process 337 attached [pid 337] set_robust_list(0x5555558636e0, 24) = 0 [pid 337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 337] setpgid(0, 0) = 0 [pid 337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 337] write(3, "1000", 4) = 4 [pid 337] close(3) = 0 [pid 337] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 337] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 337] clone(child_stack=0x7f76e31452f0, 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 338 attached [pid 338] set_robust_list(0x7f76e31459e0, 24 [pid 337] <... clone resumed>, parent_tid=[338], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 338 [pid 338] <... set_robust_list resumed>) = 0 [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 338] memfd_create("syzkaller", 0) = 3 [pid 338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 338] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 338] munmap(0x7f76dad25000, 32394836) = 0 [pid 338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 338] ioctl(4, LOOP_CLR_FD) = 0 [pid 338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 338] close(4) = 0 [pid 338] close(3) = 0 [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] <... futex resumed>) = 0 [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 337] <... futex resumed>) = 1 [pid 338] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 338] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 337] <... futex resumed>) = 1 [pid 338] <... open resumed>) = 3 [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 337] <... futex resumed>) = 1 [pid 338] ftruncate(3, 33587195) = 0 [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 338] <... futex resumed>) = 0 [pid 338] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 337] <... futex resumed>) = 1 [pid 338] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] <... open resumed>) = -1 EISDIR (Is a directory) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 337] <... futex resumed>) = 0 [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] <... close_range resumed>) = 0 [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 337] <... futex resumed>) = 0 [pid 338] write(-1, NULL, 0 [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 337] <... futex resumed>) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 337] <... futex resumed>) = 1 [pid 338] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 337] <... futex resumed>) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 338] <... futex resumed>) = 0 [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] open("./bus", O_RDONLY) = 4 [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 337] <... futex resumed>) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 337] <... futex resumed>) = 0 [pid 338] <... futex resumed>) = 0 [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 337] <... futex resumed>) = 1 [pid 338] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 337] <... futex resumed>) = 1 [pid 338] sendfile(-1, -1, NULL, 142606339 [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 337] <... futex resumed>) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 338] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 337] <... futex resumed>) = 0 [pid 338] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 338] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 337] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] <... futex resumed>) = 0 [pid 338] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] exit_group(0 [pid 338] <... futex resumed>) = ? [pid 337] <... exit_group resumed>) = ? [pid 338] +++ exited with 0 +++ [pid 337] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=337, si_uid=0, si_status=0, si_utime=3, si_stime=9} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 340 ./strace-static-x86_64: Process 340 attached [pid 340] set_robust_list(0x5555558636e0, 24) = 0 [pid 340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 340] setpgid(0, 0) = 0 [pid 340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 340] write(3, "1000", 4) = 4 [pid 340] close(3) = 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 340] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 340] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[341], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 341 ./strace-static-x86_64: Process 341 attached [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 341] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 341] memfd_create("syzkaller", 0) = 3 [pid 341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 341] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 341] munmap(0x7f76dad25000, 32394836) = 0 [pid 341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 341] ioctl(4, LOOP_CLR_FD) = 0 [pid 341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 341] close(4) = 0 [pid 341] close(3) = 0 [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] <... futex resumed>) = 0 [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... futex resumed>) = 1 [pid 341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] <... futex resumed>) = 0 [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... futex resumed>) = 1 [pid 341] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 340] <... futex resumed>) = 0 [pid 341] ftruncate(3, 33587195 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... ftruncate resumed>) = 0 [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] sendfile(-1, 3, NULL, 281474978811909 [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 340] <... futex resumed>) = 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 340] <... futex resumed>) = 0 [pid 341] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... open resumed>) = -1 EISDIR (Is a directory) [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 340] <... futex resumed>) = 0 [pid 341] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... close_range resumed>) = 0 [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 340] <... futex resumed>) = 0 [pid 341] write(-1, NULL, 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 340] <... futex resumed>) = 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] open("./bus", O_RDONLY [pid 340] <... futex resumed>) = 0 [pid 341] <... open resumed>) = 4 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... futex resumed>) = 0 [pid 340] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 341] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... openat resumed>) = -1 EFAULT (Bad address) [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... futex resumed>) = 0 [pid 340] <... futex resumed>) = 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 340] <... futex resumed>) = 0 [pid 341] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 340] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 341] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] exit_group(0 [pid 341] <... futex resumed>) = ? [pid 340] <... exit_group resumed>) = ? [pid 341] +++ exited with 0 +++ [pid 340] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=340, si_uid=0, si_status=0, si_utime=5, si_stime=7} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 342 ./strace-static-x86_64: Process 342 attached [pid 342] set_robust_list(0x5555558636e0, 24) = 0 [pid 342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 342] setpgid(0, 0) = 0 [pid 342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 342] write(3, "1000", 4) = 4 [pid 342] close(3) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 342] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 342] clone(child_stack=0x7f76e31452f0, 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 343 attached , parent_tid=[343], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 343 [pid 343] set_robust_list(0x7f76e31459e0, 24 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 343] <... set_robust_list resumed>) = 0 [pid 342] <... futex resumed>) = 0 [pid 343] memfd_create("syzkaller", 0) = 3 [pid 343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 343] <... mmap resumed>) = 0x7f76dad25000 [pid 343] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 343] munmap(0x7f76dad25000, 32394836) = 0 [pid 343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 343] ioctl(4, LOOP_CLR_FD) = 0 [pid 343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 343] close(4) = 0 [pid 343] close(3) = 0 [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 343] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] <... open resumed>) = -1 EISDIR (Is a directory) [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... futex resumed>) = 0 [pid 343] <... futex resumed>) = 1 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 343] ftruncate(3, 33587195 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] <... ftruncate resumed>) = 0 [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 343] sendfile(-1, 3, NULL, 281474978811909 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 343] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] open("./bus", O_RDONLY) = 4 [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 343] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 343] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] <... futex resumed>) = 0 [pid 342] exit_group(0) = ? [pid 343] +++ exited with 0 +++ [pid 342] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=342, si_uid=0, si_status=0, si_utime=2, si_stime=12} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 344 attached [pid 344] set_robust_list(0x5555558636e0, 24) = 0 [pid 344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 344] setpgid(0, 0) = 0 [pid 344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 323] <... clone resumed>, child_tidptr=0x5555558636d0) = 344 [pid 344] write(3, "1000", 4) = 4 [pid 344] close(3) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 344] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 344] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[345], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 345 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 345 attached [pid 345] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 345] memfd_create("syzkaller", 0) = 3 [pid 345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 345] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 345] munmap(0x7f76dad25000, 32394836) = 0 [pid 345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 345] ioctl(4, LOOP_CLR_FD) = 0 [pid 345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 345] close(4) = 0 [pid 345] close(3) = 0 [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] ftruncate(3, 33587195) = 0 [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] open("./bus", O_RDONLY) = 4 [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 1 [pid 345] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 345] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... futex resumed>) = 0 [pid 344] exit_group(0) = ? [pid 345] <... futex resumed>) = ? [pid 345] +++ exited with 0 +++ [pid 344] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=344, si_uid=0, si_status=0, si_utime=4, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 346 ./strace-static-x86_64: Process 346 attached [pid 346] set_robust_list(0x5555558636e0, 24) = 0 [pid 346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 346] setpgid(0, 0) = 0 [pid 346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 346] write(3, "1000", 4) = 4 [pid 346] close(3) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 346] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 346] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[347], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 347 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 347 attached [pid 347] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 347] memfd_create("syzkaller", 0) = 3 [pid 347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 347] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 347] munmap(0x7f76dad25000, 32394836) = 0 [pid 347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 347] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 347] ioctl(4, LOOP_CLR_FD) = 0 [pid 347] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 347] close(4) = 0 [pid 347] close(3) = 0 [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] ftruncate(3, 33587195) = 0 [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] open("./bus", O_RDONLY) = 4 [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 346] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 347] <... futex resumed>) = 1 [pid 347] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 347] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... futex resumed>) = 0 [pid 346] exit_group(0) = ? [pid 347] <... futex resumed>) = ? [pid 347] +++ exited with 0 +++ [pid 346] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=346, si_uid=0, si_status=0, si_utime=5, si_stime=6} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 348 ./strace-static-x86_64: Process 348 attached [pid 348] set_robust_list(0x5555558636e0, 24) = 0 [pid 348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 348] setpgid(0, 0) = 0 [pid 348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 348] write(3, "1000", 4) = 4 [pid 348] close(3) = 0 [pid 348] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 348] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 348] clone(child_stack=0x7f76e31452f0, 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 349 attached , parent_tid=[349], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 349 [pid 349] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] <... futex resumed>) = 0 [pid 349] memfd_create("syzkaller", 0) = 3 [pid 349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 349] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 349] munmap(0x7f76dad25000, 32394836) = 0 [pid 349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 349] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 349] ioctl(4, LOOP_CLR_FD) = 0 [pid 349] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 349] close(4) = 0 [pid 349] close(3) = 0 [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] <... futex resumed>) = 0 [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] <... futex resumed>) = 0 [pid 349] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] <... futex resumed>) = 0 [pid 349] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] <... futex resumed>) = 0 [pid 349] ftruncate(3, 33587195 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] <... ftruncate resumed>) = 0 [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] <... futex resumed>) = 0 [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] <... futex resumed>) = 0 [pid 349] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] <... futex resumed>) = 0 [pid 349] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] <... futex resumed>) = 0 [pid 349] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 349] <... futex resumed>) = 0 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 348] <... futex resumed>) = 0 [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] open("./bus", O_RDONLY) = 4 [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 348] <... futex resumed>) = 0 [pid 349] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] <... futex resumed>) = 0 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 348] <... futex resumed>) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 348] <... futex resumed>) = 0 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 348] <... futex resumed>) = 0 [pid 348] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 348] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 349] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 348] <... futex resumed>) = 0 [pid 349] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 348] exit_group(0) = ? [pid 349] <... futex resumed>) = ? [pid 349] +++ exited with 0 +++ [pid 348] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=348, si_uid=0, si_status=0, si_utime=4, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 350 ./strace-static-x86_64: Process 350 attached [pid 350] set_robust_list(0x5555558636e0, 24) = 0 [pid 350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 350] setpgid(0, 0) = 0 [pid 350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 350] write(3, "1000", 4) = 4 [pid 350] close(3) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 350] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 350] clone(child_stack=0x7f76e31452f0, 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 351 attached [pid 351] set_robust_list(0x7f76e31459e0, 24 [pid 350] <... clone resumed>, parent_tid=[351], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 351 [pid 351] <... set_robust_list resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 351] memfd_create("syzkaller", 0) = 3 [pid 351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 351] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 351] munmap(0x7f76dad25000, 32394836) = 0 [pid 351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 351] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 351] ioctl(4, LOOP_CLR_FD) = 0 [pid 351] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 351] close(4) = 0 [pid 351] close(3) = 0 [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 351] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 0 [pid 351] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] ftruncate(3, 33587195) = 0 [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] open("./bus", O_RDONLY) = 4 [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 350] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 1 [pid 351] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 351] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 350] exit_group(0) = ? [pid 351] <... futex resumed>) = ? [pid 351] +++ exited with 0 +++ [pid 350] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=350, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 353 ./strace-static-x86_64: Process 353 attached [pid 353] set_robust_list(0x5555558636e0, 24) = 0 [pid 353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 353] setpgid(0, 0) = 0 [pid 353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 353] write(3, "1000", 4) = 4 [pid 353] close(3) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 353] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 353] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[354], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 354 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 354 attached [pid 354] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 354] memfd_create("syzkaller", 0) = 3 [pid 354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 354] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 354] munmap(0x7f76dad25000, 32394836) = 0 [pid 354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 354] ioctl(4, LOOP_CLR_FD) = 0 [pid 354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 354] close(4) = 0 [pid 354] close(3) = 0 [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 354] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 353] <... futex resumed>) = 0 [pid 354] <... open resumed>) = -1 EISDIR (Is a directory) [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] ftruncate(3, 33587195) = 0 [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] open("./bus", O_RDONLY) = 4 [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 353] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 353] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 354] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 354] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 353] <... futex resumed>) = 0 [pid 354] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 353] exit_group(0 [pid 354] <... futex resumed>) = ? [pid 353] <... exit_group resumed>) = ? [pid 354] +++ exited with 0 +++ [pid 353] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=353, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 355 ./strace-static-x86_64: Process 355 attached [pid 355] set_robust_list(0x5555558636e0, 24) = 0 [pid 355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 355] setpgid(0, 0) = 0 [pid 355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 355] write(3, "1000", 4) = 4 [pid 355] close(3) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 355] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 355] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[356], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 356 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 356 attached [pid 356] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 356] memfd_create("syzkaller", 0) = 3 [pid 356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 356] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 356] munmap(0x7f76dad25000, 32394836) = 0 [pid 356] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 356] ioctl(4, LOOP_CLR_FD) = 0 [pid 356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 356] close(4) = 0 [pid 356] close(3) = 0 [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 356] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = 0 [pid 356] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = 1 [pid 356] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = 1 [pid 356] ftruncate(3, 33587195) = 0 [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = 1 [pid 356] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = 1 [pid 356] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = 1 [pid 356] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = 1 [pid 356] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] open("./bus", O_RDONLY) = 4 [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 356] <... futex resumed>) = 1 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 355] <... futex resumed>) = 0 [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... openat resumed>) = -1 EFAULT (Bad address) [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 356] <... futex resumed>) = 1 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] sendfile(-1, -1, NULL, 142606339 [pid 355] <... futex resumed>) = 0 [pid 356] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 356] <... futex resumed>) = 0 [pid 355] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 355] <... futex resumed>) = 0 [pid 356] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 355] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 356] <... futex resumed>) = 0 [pid 355] exit_group(0 [pid 356] ????( [pid 355] <... exit_group resumed>) = ? [pid 356] <... ???? resumed>) = ? [pid 356] +++ exited with 0 +++ [pid 355] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=355, si_uid=0, si_status=0, si_utime=2, si_stime=10} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 357 ./strace-static-x86_64: Process 357 attached [pid 357] set_robust_list(0x5555558636e0, 24) = 0 [pid 357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 357] setpgid(0, 0) = 0 [pid 357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 357] write(3, "1000", 4) = 4 [pid 357] close(3) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 357] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 357] clone(child_stack=0x7f76e31452f0, 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 358 attached , parent_tid=[358], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 358 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 358] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 358] memfd_create("syzkaller", 0) = 3 [pid 358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 358] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 358] munmap(0x7f76dad25000, 32394836) = 0 [pid 358] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 358] ioctl(4, LOOP_CLR_FD) = 0 [pid 358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 358] close(4) = 0 [pid 358] close(3) = 0 [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 358] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] <... futex resumed>) = 0 [pid 358] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] <... open resumed>) = 3 [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 358] ftruncate(3, 33587195 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] <... ftruncate resumed>) = 0 [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] sendfile(-1, 3, NULL, 281474978811909 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] open("./bus", O_RDONLY) = 4 [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 357] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 358] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 357] <... futex resumed>) = 0 [pid 357] exit_group(0) = ? [pid 358] +++ exited with 0 +++ [pid 357] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=357, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 359 ./strace-static-x86_64: Process 359 attached [pid 359] set_robust_list(0x5555558636e0, 24) = 0 [pid 359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 359] setpgid(0, 0) = 0 [pid 359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 359] write(3, "1000", 4) = 4 [pid 359] close(3) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 359] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 359] clone(child_stack=0x7f76e31452f0, 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 360 attached , parent_tid=[360], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 360 [pid 360] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 360] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 360] <... futex resumed>) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 360] memfd_create("syzkaller", 0) = 3 [pid 360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 360] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 360] munmap(0x7f76dad25000, 32394836) = 0 [pid 360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 360] ioctl(4, LOOP_CLR_FD) = 0 [pid 360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 360] close(4) = 0 [pid 360] close(3) = 0 [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 360] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 360] <... futex resumed>) = 0 [pid 360] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... open resumed>) = -1 EISDIR (Is a directory) [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 360] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 360] <... futex resumed>) = 0 [pid 360] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 360] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] <... futex resumed>) = 0 [pid 359] <... futex resumed>) = 1 [pid 360] ftruncate(3, 33587195 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... ftruncate resumed>) = 0 [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 359] <... futex resumed>) = 0 [pid 360] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 360] <... futex resumed>) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 360] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... open resumed>) = -1 EISDIR (Is a directory) [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... close_range resumed>) = 0 [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 359] <... futex resumed>) = 0 [pid 360] write(-1, NULL, 0 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 360] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 359] <... futex resumed>) = 0 [pid 360] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 359] <... futex resumed>) = 0 [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... futex resumed>) = 0 [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 360] open("./bus", O_RDONLY [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... open resumed>) = 4 [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... futex resumed>) = 1 [pid 360] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 359] <... futex resumed>) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... openat resumed>) = -1 EFAULT (Bad address) [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 360] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = 1 [pid 359] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 359] <... futex resumed>) = 0 [pid 360] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 359] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 359] <... futex resumed>) = 0 [pid 360] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] exit_group(0) = ? [pid 360] <... futex resumed>) = ? [pid 360] +++ exited with 0 +++ [pid 359] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=359, si_uid=0, si_status=0, si_utime=2, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 361 ./strace-static-x86_64: Process 361 attached [pid 361] set_robust_list(0x5555558636e0, 24) = 0 [pid 361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 361] setpgid(0, 0) = 0 [pid 361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 361] write(3, "1000", 4) = 4 [pid 361] close(3) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 361] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 361] clone(child_stack=0x7f76e31452f0, 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 362 attached [pid 362] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 362] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 361] <... clone resumed>, parent_tid=[362], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 362 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 362] <... futex resumed>) = 0 [pid 362] memfd_create("syzkaller", 0) = 3 [pid 362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 362] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 362] munmap(0x7f76dad25000, 32394836) = 0 [pid 362] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 362] ioctl(4, LOOP_CLR_FD) = 0 [pid 362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 362] close(4) = 0 [pid 362] close(3) = 0 [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 362] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 361] <... futex resumed>) = 0 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 362] <... futex resumed>) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 1 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 361] <... futex resumed>) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] <... open resumed>) = 3 [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 1 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] ftruncate(3, 33587195 [pid 361] <... futex resumed>) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] <... ftruncate resumed>) = 0 [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 361] <... futex resumed>) = 0 [pid 362] sendfile(-1, 3, NULL, 281474978811909 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 362] <... futex resumed>) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 361] <... futex resumed>) = 0 [pid 362] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 361] <... futex resumed>) = 0 [pid 362] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] <... close_range resumed>) = 0 [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 361] <... futex resumed>) = 0 [pid 362] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 361] <... futex resumed>) = 0 [pid 362] write(-1, NULL, 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 1 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 361] <... futex resumed>) = 0 [pid 362] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 362] <... futex resumed>) = 0 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] open("./bus", O_RDONLY [pid 361] <... futex resumed>) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] <... open resumed>) = 4 [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 1 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 361] <... futex resumed>) = 0 [pid 362] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 362] <... futex resumed>) = 0 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 361] <... futex resumed>) = 0 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] <... openat resumed>) = -1 EFAULT (Bad address) [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 361] <... futex resumed>) = 0 [pid 362] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 361] <... futex resumed>) = 0 [pid 362] sendfile(-1, -1, NULL, 142606339 [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 1 [pid 361] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 361] <... futex resumed>) = 0 [pid 362] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 361] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 362] <... futex resumed>) = 0 [pid 361] exit_group(0 [pid 362] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 361] <... exit_group resumed>) = ? [pid 362] <... futex resumed>) = ? [pid 362] +++ exited with 0 +++ [pid 361] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=361, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 363 ./strace-static-x86_64: Process 363 attached [pid 363] set_robust_list(0x5555558636e0, 24) = 0 [pid 363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 363] setpgid(0, 0) = 0 [pid 363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 363] write(3, "1000", 4) = 4 [pid 363] close(3) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 363] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 363] clone(child_stack=0x7f76e31452f0, 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 364 attached , parent_tid=[364], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 364 [pid 364] set_robust_list(0x7f76e31459e0, 24 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 364] <... set_robust_list resumed>) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 364] memfd_create("syzkaller", 0) = 3 [pid 364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 364] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 364] munmap(0x7f76dad25000, 32394836) = 0 [pid 364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 364] ioctl(4, LOOP_CLR_FD) = 0 [pid 364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 364] close(4) = 0 [pid 364] close(3) = 0 [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 364] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] <... futex resumed>) = 0 [pid 364] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] <... futex resumed>) = 1 [pid 364] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] <... futex resumed>) = 1 [pid 364] ftruncate(3, 33587195) = 0 [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] open("./bus", O_RDONLY) = 4 [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 364] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 364] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 363] <... futex resumed>) = 0 [pid 364] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 364] <... futex resumed>) = 0 [pid 363] <... futex resumed>) = 1 [pid 364] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] <... openat resumed>) = -1 EFAULT (Bad address) [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 364] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 364] <... futex resumed>) = 0 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 363] <... futex resumed>) = 0 [pid 364] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 363] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 364] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 363] <... futex resumed>) = 0 [pid 364] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 363] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] <... futex resumed>) = 0 [pid 363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 364] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] exit_group(0) = ? [pid 364] <... futex resumed>) = ? [pid 364] +++ exited with 0 +++ [pid 363] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, si_uid=0, si_status=0, si_utime=3, si_stime=10} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 366 attached , child_tidptr=0x5555558636d0) = 366 [pid 366] set_robust_list(0x5555558636e0, 24) = 0 [pid 366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 366] setpgid(0, 0) = 0 [pid 366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 366] write(3, "1000", 4) = 4 [pid 366] close(3) = 0 [pid 366] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 366] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 366] clone(child_stack=0x7f76e31452f0, 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 367 attached , parent_tid=[367], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 367 [pid 367] set_robust_list(0x7f76e31459e0, 24 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 367] <... set_robust_list resumed>) = 0 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 367] memfd_create("syzkaller", 0) = 3 [pid 367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 367] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 367] munmap(0x7f76dad25000, 32394836) = 0 [pid 367] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 367] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 367] ioctl(4, LOOP_CLR_FD) = 0 [pid 367] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 367] close(4) = 0 [pid 367] close(3) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 367] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] <... futex resumed>) = 0 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = 1 [pid 367] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... open resumed>) = -1 EISDIR (Is a directory) [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 366] <... futex resumed>) = 0 [pid 367] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... open resumed>) = 3 [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] ftruncate(3, 33587195 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... ftruncate resumed>) = 0 [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] sendfile(-1, 3, NULL, 281474978811909 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... open resumed>) = -1 EISDIR (Is a directory) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... close_range resumed>) = 0 [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] write(-1, NULL, 0 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] open("./bus", O_RDONLY [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... open resumed>) = 4 [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... openat resumed>) = -1 EFAULT (Bad address) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] sendfile(-1, -1, NULL, 142606339 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 366] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 366] <... futex resumed>) = 0 [pid 367] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... futex resumed>) = 0 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] exit_group(0 [pid 367] <... futex resumed>) = ? [pid 366] <... exit_group resumed>) = ? [pid 367] +++ exited with 0 +++ [pid 366] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=366, si_uid=0, si_status=0, si_utime=3, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 368 attached , child_tidptr=0x5555558636d0) = 368 [pid 368] set_robust_list(0x5555558636e0, 24) = 0 [pid 368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 368] setpgid(0, 0) = 0 [pid 368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 368] write(3, "1000", 4) = 4 [pid 368] close(3) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 368] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 368] clone(child_stack=0x7f76e31452f0, 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 369 attached [pid 369] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 369] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 368] <... clone resumed>, parent_tid=[369], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 369 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 369] <... futex resumed>) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 369] memfd_create("syzkaller", 0) = 3 [pid 369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 369] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 369] munmap(0x7f76dad25000, 32394836) = 0 [pid 369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 369] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 369] ioctl(4, LOOP_CLR_FD) = 0 [pid 369] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 369] close(4) = 0 [pid 369] close(3) = 0 [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 369] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] <... futex resumed>) = 0 [pid 369] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] <... futex resumed>) = 1 [pid 369] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] <... futex resumed>) = 1 [pid 369] ftruncate(3, 33587195) = 0 [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 1 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] open("./bus", O_RDONLY) = 4 [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 369] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 369] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] sendfile(-1, -1, NULL, 142606339 [pid 368] <... futex resumed>) = 0 [pid 369] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 1 [pid 368] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 369] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 368] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 369] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 368] <... futex resumed>) = 0 [pid 369] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 368] exit_group(0) = ? [pid 369] <... futex resumed>) = ? [pid 369] +++ exited with 0 +++ [pid 368] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=368, si_uid=0, si_status=0, si_utime=2, si_stime=11} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 370 ./strace-static-x86_64: Process 370 attached [pid 370] set_robust_list(0x5555558636e0, 24) = 0 [pid 370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 370] setpgid(0, 0) = 0 [pid 370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 370] write(3, "1000", 4) = 4 [pid 370] close(3) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 370] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 370] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[371], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 371 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 371 attached [pid 371] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 371] memfd_create("syzkaller", 0) = 3 [pid 371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 371] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 371] munmap(0x7f76dad25000, 32394836) = 0 [pid 371] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 371] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 371] ioctl(4, LOOP_CLR_FD) = 0 [pid 371] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 371] close(4) = 0 [pid 371] close(3) = 0 [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] ftruncate(3, 33587195) = 0 [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] open("./bus", O_RDONLY) = 4 [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 370] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... futex resumed>) = 1 [pid 371] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 371] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 370] exit_group(0) = ? [pid 371] <... futex resumed>) = ? [pid 371] +++ exited with 0 +++ [pid 370] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=370, si_uid=0, si_status=0, si_utime=4, si_stime=7} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 372 ./strace-static-x86_64: Process 372 attached [pid 372] set_robust_list(0x5555558636e0, 24) = 0 [pid 372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 372] setpgid(0, 0) = 0 [pid 372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 372] write(3, "1000", 4) = 4 [pid 372] close(3) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 372] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 372] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[373], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 373 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 373 attached [pid 373] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 373] memfd_create("syzkaller", 0) = 3 [pid 373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 373] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 373] munmap(0x7f76dad25000, 32394836) = 0 [pid 373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 373] ioctl(4, LOOP_CLR_FD) = 0 [pid 373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 373] close(4) = 0 [pid 373] close(3) = 0 [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] <... futex resumed>) = 1 [pid 373] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] <... futex resumed>) = 1 [pid 373] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] <... futex resumed>) = 1 [pid 373] ftruncate(3, 33587195) = 0 [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] open("./bus", O_RDONLY [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] <... open resumed>) = 4 [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 373] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 372] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 372] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 373] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] <... futex resumed>) = 0 [pid 373] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 372] exit_group(0 [pid 373] <... futex resumed>) = ? [pid 372] <... exit_group resumed>) = ? [pid 373] +++ exited with 0 +++ [pid 372] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=372, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 374 ./strace-static-x86_64: Process 374 attached [pid 374] set_robust_list(0x5555558636e0, 24) = 0 [pid 374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 374] setpgid(0, 0) = 0 [pid 374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 374] write(3, "1000", 4) = 4 [pid 374] close(3) = 0 [pid 374] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 374] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 374] clone(child_stack=0x7f76e31452f0, 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 375 attached [pid 375] set_robust_list(0x7f76e31459e0, 24 [pid 374] <... clone resumed>, parent_tid=[375], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 375 [pid 375] <... set_robust_list resumed>) = 0 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 375] memfd_create("syzkaller", 0) = 3 [pid 375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 375] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 375] munmap(0x7f76dad25000, 32394836) = 0 [pid 375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 375] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 375] ioctl(4, LOOP_CLR_FD) = 0 [pid 375] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 375] close(4) = 0 [pid 375] close(3) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 374] <... futex resumed>) = 0 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 375] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 374] <... futex resumed>) = 0 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = 1 [pid 375] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... open resumed>) = 3 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 374] <... futex resumed>) = 0 [pid 375] ftruncate(3, 33587195 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... ftruncate resumed>) = 0 [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] sendfile(-1, 3, NULL, 281474978811909 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... open resumed>) = -1 EISDIR (Is a directory) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... close_range resumed>) = 0 [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] write(-1, NULL, 0 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] open("./bus", O_RDONLY [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... open resumed>) = 4 [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... openat resumed>) = -1 EFAULT (Bad address) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] sendfile(-1, -1, NULL, 142606339 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 374] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 374] <... futex resumed>) = 0 [pid 375] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] <... futex resumed>) = 0 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 374] exit_group(0 [pid 375] <... futex resumed>) = ? [pid 374] <... exit_group resumed>) = ? [pid 375] +++ exited with 0 +++ [pid 374] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=374, si_uid=0, si_status=0, si_utime=5, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 376 ./strace-static-x86_64: Process 376 attached [pid 376] set_robust_list(0x5555558636e0, 24) = 0 [pid 376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 376] setpgid(0, 0) = 0 [pid 376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 376] write(3, "1000", 4) = 4 [pid 376] close(3) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 376] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 376] clone(child_stack=0x7f76e31452f0, 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 377 attached , parent_tid=[377], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 377 [pid 377] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 377] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 377] <... futex resumed>) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 377] memfd_create("syzkaller", 0) = 3 [pid 377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 377] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 377] munmap(0x7f76dad25000, 32394836) = 0 [pid 377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 377] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 377] ioctl(4, LOOP_CLR_FD) = 0 [pid 377] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 377] close(4) = 0 [pid 377] close(3) = 0 [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 376] <... futex resumed>) = 0 [pid 377] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... open resumed>) = -1 EISDIR (Is a directory) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] ftruncate(3, 33587195) = 0 [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] open("./bus", O_RDONLY) = 4 [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 376] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] <... futex resumed>) = 1 [pid 377] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 377] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 376] exit_group(0) = ? [pid 377] <... futex resumed>) = ? [pid 377] +++ exited with 0 +++ [pid 376] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=376, si_uid=0, si_status=0, si_utime=2, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 379 ./strace-static-x86_64: Process 379 attached [pid 379] set_robust_list(0x5555558636e0, 24) = 0 [pid 379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 379] setpgid(0, 0) = 0 [pid 379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 379] write(3, "1000", 4) = 4 [pid 379] close(3) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 379] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 379] clone(child_stack=0x7f76e31452f0, 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 380 attached , parent_tid=[380], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 380 [pid 380] set_robust_list(0x7f76e31459e0, 24 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... set_robust_list resumed>) = 0 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 380] memfd_create("syzkaller", 0) = 3 [pid 380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 380] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 380] munmap(0x7f76dad25000, 32394836) = 0 [pid 380] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 380] ioctl(4, LOOP_CLR_FD) = 0 [pid 380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 380] close(4) = 0 [pid 380] close(3) = 0 [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] ftruncate(3, 33587195) = 0 [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] open("./bus", O_RDONLY) = 4 [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 379] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... futex resumed>) = 1 [pid 380] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 380] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... futex resumed>) = 0 [pid 379] exit_group(0) = ? [pid 380] <... futex resumed>) = ? [pid 380] +++ exited with 0 +++ [pid 379] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=379, si_uid=0, si_status=0, si_utime=3, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 381 ./strace-static-x86_64: Process 381 attached [pid 381] set_robust_list(0x5555558636e0, 24) = 0 [pid 381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 381] setpgid(0, 0) = 0 [pid 381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 381] write(3, "1000", 4) = 4 [pid 381] close(3) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 381] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 381] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[382], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 382 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 382 attached [pid 382] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 382] memfd_create("syzkaller", 0) = 3 [pid 382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 382] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 382] munmap(0x7f76dad25000, 32394836) = 0 [pid 382] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 382] ioctl(4, LOOP_CLR_FD) = 0 [pid 382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 382] close(4) = 0 [pid 382] close(3) = 0 [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] ftruncate(3, 33587195) = 0 [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] open("./bus", O_RDONLY) = 4 [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] <... futex resumed>) = 1 [pid 382] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 382] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] exit_group(0) = ? [pid 382] <... futex resumed>) = ? [pid 382] +++ exited with 0 +++ [pid 381] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=381, si_uid=0, si_status=0, si_utime=3, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 383 attached , child_tidptr=0x5555558636d0) = 383 [pid 383] set_robust_list(0x5555558636e0, 24) = 0 [pid 383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 383] setpgid(0, 0) = 0 [pid 383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 383] write(3, "1000", 4) = 4 [pid 383] close(3) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 383] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 383] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[384], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 384 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 384 attached [pid 384] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 384] memfd_create("syzkaller", 0) = 3 [pid 384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 384] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 384] munmap(0x7f76dad25000, 32394836) = 0 [pid 384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 384] ioctl(4, LOOP_CLR_FD) = 0 [pid 384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 384] close(4) = 0 [pid 384] close(3) = 0 [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] ftruncate(3, 33587195) = 0 [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] open("./bus", O_RDONLY) = 4 [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 383] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 1 [pid 384] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 384] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 383] <... futex resumed>) = 0 [pid 383] exit_group(0) = ? [pid 384] <... futex resumed>) = ? [pid 384] +++ exited with 0 +++ [pid 383] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=383, si_uid=0, si_status=0, si_utime=3, si_stime=11} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 385 ./strace-static-x86_64: Process 385 attached [pid 385] set_robust_list(0x5555558636e0, 24) = 0 [pid 385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 385] setpgid(0, 0) = 0 [pid 385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 385] write(3, "1000", 4) = 4 [pid 385] close(3) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 385] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 385] clone(child_stack=0x7f76e31452f0, 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 386 attached [pid 386] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 386] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 385] <... clone resumed>, parent_tid=[386], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 386 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 386] <... futex resumed>) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 386] memfd_create("syzkaller", 0) = 3 [pid 386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 386] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 386] munmap(0x7f76dad25000, 32394836) = 0 [pid 386] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 386] ioctl(4, LOOP_CLR_FD) = 0 [pid 386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 386] close(4) = 0 [pid 386] close(3) = 0 [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 386] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 386] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] ftruncate(3, 33587195) = 0 [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] open("./bus", O_RDONLY) = 4 [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 386] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 386] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 0 [pid 385] exit_group(0) = ? [pid 386] <... futex resumed>) = ? [pid 386] +++ exited with 0 +++ [pid 385] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=385, si_uid=0, si_status=0, si_utime=4, si_stime=7} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 387 ./strace-static-x86_64: Process 387 attached [pid 387] set_robust_list(0x5555558636e0, 24) = 0 [pid 387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 387] setpgid(0, 0) = 0 [pid 387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 387] write(3, "1000", 4) = 4 [pid 387] close(3) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 387] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 387] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[388], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 388 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 388 attached [pid 388] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 388] memfd_create("syzkaller", 0) = 3 [pid 388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 388] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 388] munmap(0x7f76dad25000, 32394836) = 0 [pid 388] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 388] ioctl(4, LOOP_CLR_FD) = 0 [pid 388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 388] close(4) = 0 [pid 388] close(3) = 0 [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] ftruncate(3, 33587195) = 0 [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] open("./bus", O_RDONLY) = 4 [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 387] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... futex resumed>) = 1 [pid 388] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 388] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 387] exit_group(0) = ? [pid 388] <... futex resumed>) = ? [pid 388] +++ exited with 0 +++ [pid 387] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=387, si_uid=0, si_status=0, si_utime=1, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 389 ./strace-static-x86_64: Process 389 attached [pid 389] set_robust_list(0x5555558636e0, 24) = 0 [pid 389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 389] setpgid(0, 0) = 0 [pid 389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 389] write(3, "1000", 4) = 4 [pid 389] close(3) = 0 [pid 389] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 389] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 389] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 389] clone(child_stack=0x7f76e31452f0, 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 390 attached , parent_tid=[390], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 390 [pid 390] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = 1 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 390] memfd_create("syzkaller", 0) = 3 [pid 390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 390] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 390] munmap(0x7f76dad25000, 32394836) = 0 [pid 390] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 390] ioctl(4, LOOP_CLR_FD) = 0 [pid 390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 390] close(4) = 0 [pid 390] close(3) = 0 [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] <... futex resumed>) = 0 [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 390] <... futex resumed>) = 0 [pid 390] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] <... futex resumed>) = 0 [pid 390] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 389] <... futex resumed>) = 1 [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 390] <... futex resumed>) = 0 [pid 390] ftruncate(3, 33587195) = 0 [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 390] <... futex resumed>) = 0 [pid 390] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 390] <... futex resumed>) = 0 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] <... futex resumed>) = 0 [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 390] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] <... close_range resumed>) = 0 [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] <... futex resumed>) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] <... futex resumed>) = 0 [pid 390] write(-1, NULL, 0 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] <... futex resumed>) = 0 [pid 390] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 389] <... futex resumed>) = 0 [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] <... futex resumed>) = 0 [pid 390] open("./bus", O_RDONLY [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] <... open resumed>) = 4 [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] <... futex resumed>) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] <... futex resumed>) = 0 [pid 390] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] <... futex resumed>) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] <... futex resumed>) = 0 [pid 390] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] <... openat resumed>) = -1 EFAULT (Bad address) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] <... futex resumed>) = 0 [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 390] <... futex resumed>) = 0 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] <... futex resumed>) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 389] <... futex resumed>) = 0 [pid 390] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 389] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 390] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 390] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] <... futex resumed>) = 0 [pid 390] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 389] exit_group(0) = ? [pid 390] <... futex resumed>) = ? [pid 390] +++ exited with 0 +++ [pid 389] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=389, si_uid=0, si_status=0, si_utime=4, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 392 ./strace-static-x86_64: Process 392 attached [pid 392] set_robust_list(0x5555558636e0, 24) = 0 [pid 392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 392] setpgid(0, 0) = 0 [pid 392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 392] write(3, "1000", 4) = 4 [pid 392] close(3) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 392] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 392] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[393], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 393 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 393 attached [pid 393] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 393] memfd_create("syzkaller", 0) = 3 [pid 393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 393] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 393] munmap(0x7f76dad25000, 32394836) = 0 [pid 393] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 393] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 393] ioctl(4, LOOP_CLR_FD) = 0 [pid 393] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 393] close(4) = 0 [pid 393] close(3) = 0 [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 393] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] <... futex resumed>) = 0 [pid 393] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] <... futex resumed>) = 1 [pid 393] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] <... futex resumed>) = 1 [pid 393] ftruncate(3, 33587195) = 0 [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 393] sendfile(-1, 3, NULL, 281474978811909 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 393] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 393] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] <... open resumed>) = -1 EISDIR (Is a directory) [pid 392] <... futex resumed>) = 0 [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] <... futex resumed>) = 0 [pid 392] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] open("./bus", O_RDONLY) = 4 [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 393] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 392] <... futex resumed>) = 0 [pid 392] exit_group(0) = ? [pid 393] +++ exited with 0 +++ [pid 392] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=392, si_uid=0, si_status=0, si_utime=4, si_stime=7} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 394 ./strace-static-x86_64: Process 394 attached [pid 394] set_robust_list(0x5555558636e0, 24) = 0 [pid 394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 394] setpgid(0, 0) = 0 [pid 394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 394] write(3, "1000", 4) = 4 [pid 394] close(3) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 394] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 394] clone(child_stack=0x7f76e31452f0, 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 395 attached [pid 395] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 394] <... clone resumed>, parent_tid=[395], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 395 [pid 395] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 395] <... futex resumed>) = 0 [pid 395] memfd_create("syzkaller", 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 395] <... memfd_create resumed>) = 3 [pid 395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 395] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 395] munmap(0x7f76dad25000, 32394836) = 0 [pid 395] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 395] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 395] ioctl(4, LOOP_CLR_FD) = 0 [pid 395] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 395] close(4) = 0 [pid 395] close(3) = 0 [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] <... futex resumed>) = 1 [pid 395] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 395] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 395] <... open resumed>) = 3 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 395] ftruncate(3, 33587195 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] <... ftruncate resumed>) = 0 [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 395] sendfile(-1, 3, NULL, 281474978811909 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 395] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 395] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] <... open resumed>) = -1 EISDIR (Is a directory) [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] open("./bus", O_RDONLY) = 4 [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 395] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 395] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 394] exit_group(0 [pid 395] <... futex resumed>) = ? [pid 394] <... exit_group resumed>) = ? [pid 395] +++ exited with 0 +++ [pid 394] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=394, si_uid=0, si_status=0, si_utime=4, si_stime=6} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 396 ./strace-static-x86_64: Process 396 attached [pid 396] set_robust_list(0x5555558636e0, 24) = 0 [pid 396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 396] setpgid(0, 0) = 0 [pid 396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 396] write(3, "1000", 4) = 4 [pid 396] close(3) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 396] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 396] clone(child_stack=0x7f76e31452f0, 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 397 attached , parent_tid=[397], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 397 [pid 397] set_robust_list(0x7f76e31459e0, 24 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] <... set_robust_list resumed>) = 0 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 397] memfd_create("syzkaller", 0) = 3 [pid 397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 397] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 397] munmap(0x7f76dad25000, 32394836) = 0 [pid 397] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 397] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 397] ioctl(4, LOOP_CLR_FD) = 0 [pid 397] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 397] close(4) = 0 [pid 397] close(3) = 0 [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 397] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 0 [pid 397] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] ftruncate(3, 33587195) = 0 [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 396] <... futex resumed>) = 0 [pid 397] sendfile(-1, 3, NULL, 281474978811909 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 396] <... futex resumed>) = 0 [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 396] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 0 [pid 397] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] open("./bus", O_RDONLY) = 4 [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 397] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 0 [pid 396] exit_group(0) = ? [pid 397] <... futex resumed>) = ? [pid 397] +++ exited with 0 +++ [pid 396] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=396, si_uid=0, si_status=0, si_utime=4, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 398 ./strace-static-x86_64: Process 398 attached [pid 398] set_robust_list(0x5555558636e0, 24) = 0 [pid 398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 398] setpgid(0, 0) = 0 [pid 398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 398] write(3, "1000", 4) = 4 [pid 398] close(3) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 398] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 398] clone(child_stack=0x7f76e31452f0, 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 399 attached , parent_tid=[399], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 399 [pid 399] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 399] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 399] <... futex resumed>) = 0 [pid 399] memfd_create("syzkaller", 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 399] <... memfd_create resumed>) = 3 [pid 399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 399] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 399] munmap(0x7f76dad25000, 32394836) = 0 [pid 399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 399] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 399] ioctl(4, LOOP_CLR_FD) = 0 [pid 399] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 399] close(4) = 0 [pid 399] close(3) = 0 [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] ftruncate(3, 33587195) = 0 [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] open("./bus", O_RDONLY) = 4 [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 398] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 1 [pid 399] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 399] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... futex resumed>) = 0 [pid 398] exit_group(0) = ? [pid 399] <... futex resumed>) = ? [pid 399] +++ exited with 0 +++ [pid 398] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=398, si_uid=0, si_status=0, si_utime=5, si_stime=6} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 400 ./strace-static-x86_64: Process 400 attached [pid 400] set_robust_list(0x5555558636e0, 24) = 0 [pid 400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 400] setpgid(0, 0) = 0 [pid 400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 400] write(3, "1000", 4) = 4 [pid 400] close(3) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 400] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 400] clone(child_stack=0x7f76e31452f0, 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 401 attached , parent_tid=[401], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 401 [pid 401] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 401] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 400] <... futex resumed>) = 0 [pid 401] memfd_create("syzkaller", 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 401] <... memfd_create resumed>) = 3 [pid 401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 401] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 401] munmap(0x7f76dad25000, 32394836) = 0 [pid 401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 401] ioctl(4, LOOP_CLR_FD) = 0 [pid 401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 401] close(4) = 0 [pid 401] close(3) = 0 [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] ftruncate(3, 33587195) = 0 [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 400] <... futex resumed>) = 0 [pid 401] write(-1, NULL, 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 401] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 400] <... futex resumed>) = 0 [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 0 [pid 400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 401] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 401] <... mmap resumed>) = -1 EBADF (Bad file descriptor) [pid 400] <... futex resumed>) = 0 [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 0 [pid 400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 401] open("./bus", O_RDONLY [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... open resumed>) = 4 [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 401] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 400] <... futex resumed>) = 0 [pid 400] exit_group(0 [pid 401] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 400] <... exit_group resumed>) = ? [pid 401] <... futex resumed>) = ? [pid 401] +++ exited with 0 +++ [pid 400] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=400, si_uid=0, si_status=0, si_utime=1, si_stime=10} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 402 attached [pid 402] set_robust_list(0x5555558636e0, 24 [pid 323] <... clone resumed>, child_tidptr=0x5555558636d0) = 402 [pid 402] <... set_robust_list resumed>) = 0 [pid 402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 402] setpgid(0, 0) = 0 [pid 402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 402] write(3, "1000", 4) = 4 [pid 402] close(3) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 402] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 402] clone(child_stack=0x7f76e31452f0, 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 403 attached , parent_tid=[403], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 403 [pid 403] set_robust_list(0x7f76e31459e0, 24 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 403] <... set_robust_list resumed>) = 0 [pid 402] <... futex resumed>) = 0 [pid 403] memfd_create("syzkaller", 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 403] <... memfd_create resumed>) = 3 [pid 403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 403] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 403] munmap(0x7f76dad25000, 32394836) = 0 [pid 403] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 403] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 403] ioctl(4, LOOP_CLR_FD) = 0 [pid 403] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 403] close(4) = 0 [pid 403] close(3) = 0 [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 403] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 402] <... futex resumed>) = 0 [pid 403] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 403] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... open resumed>) = -1 EISDIR (Is a directory) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 402] <... futex resumed>) = 0 [pid 403] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 403] <... open resumed>) = 3 [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 403] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 402] <... futex resumed>) = 1 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 0 [pid 403] ftruncate(3, 33587195) = 0 [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] open("./bus", O_RDONLY) = 4 [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 403] <... futex resumed>) = 1 [pid 403] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 403] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] exit_group(0) = ? [pid 403] <... futex resumed>) = ? [pid 403] +++ exited with 0 +++ [pid 402] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=402, si_uid=0, si_status=0, si_utime=4, si_stime=7} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 405 ./strace-static-x86_64: Process 405 attached [pid 405] set_robust_list(0x5555558636e0, 24) = 0 [pid 405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 405] setpgid(0, 0) = 0 [pid 405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 405] write(3, "1000", 4) = 4 [pid 405] close(3) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 405] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 405] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[406], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 406 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 406 attached [pid 406] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 406] memfd_create("syzkaller", 0) = 3 [pid 406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 406] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 406] munmap(0x7f76dad25000, 32394836) = 0 [pid 406] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 406] ioctl(4, LOOP_CLR_FD) = 0 [pid 406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 406] close(4) = 0 [pid 406] close(3) = 0 [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] ftruncate(3, 33587195) = 0 [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] open("./bus", O_RDONLY) = 4 [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 405] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... futex resumed>) = 1 [pid 406] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 406] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = 0 [pid 405] exit_group(0) = ? [pid 406] <... futex resumed>) = ? [pid 406] +++ exited with 0 +++ [pid 405] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=405, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 407 ./strace-static-x86_64: Process 407 attached [pid 407] set_robust_list(0x5555558636e0, 24) = 0 [pid 407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 407] setpgid(0, 0) = 0 [pid 407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 407] write(3, "1000", 4) = 4 [pid 407] close(3) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 407] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 407] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[408], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 408 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 408 attached [pid 408] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 408] memfd_create("syzkaller", 0) = 3 [pid 408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 408] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 408] munmap(0x7f76dad25000, 32394836) = 0 [pid 408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 408] ioctl(4, LOOP_CLR_FD) = 0 [pid 408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 408] close(4) = 0 [pid 408] close(3) = 0 [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] ftruncate(3, 33587195) = 0 [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] open("./bus", O_RDONLY) = 4 [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 407] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] <... futex resumed>) = 1 [pid 408] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 408] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 0 [pid 407] exit_group(0) = ? [pid 408] <... futex resumed>) = ? [pid 408] +++ exited with 0 +++ [pid 407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=407, si_uid=0, si_status=0, si_utime=1, si_stime=11} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 409 ./strace-static-x86_64: Process 409 attached [pid 409] set_robust_list(0x5555558636e0, 24) = 0 [pid 409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 409] setpgid(0, 0) = 0 [pid 409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 409] write(3, "1000", 4) = 4 [pid 409] close(3) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 409] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 409] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[410], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 410 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 410 attached [pid 410] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 410] memfd_create("syzkaller", 0) = 3 [pid 410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 410] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 410] munmap(0x7f76dad25000, 32394836) = 0 [pid 410] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 410] ioctl(4, LOOP_CLR_FD) = 0 [pid 410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 410] close(4) = 0 [pid 410] close(3) = 0 [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] ftruncate(3, 33587195) = 0 [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] open("./bus", O_RDONLY) = 4 [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 1 [pid 410] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 410] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 409] exit_group(0) = ? [pid 410] <... futex resumed>) = ? [pid 410] +++ exited with 0 +++ [pid 409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=409, si_uid=0, si_status=0, si_utime=3, si_stime=10} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 411 ./strace-static-x86_64: Process 411 attached [pid 411] set_robust_list(0x5555558636e0, 24) = 0 [pid 411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 411] setpgid(0, 0) = 0 [pid 411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 411] write(3, "1000", 4) = 4 [pid 411] close(3) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 411] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 411] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[412], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 412 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 412 attached [pid 412] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 412] memfd_create("syzkaller", 0) = 3 [pid 412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 412] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 412] munmap(0x7f76dad25000, 32394836) = 0 [pid 412] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 412] ioctl(4, LOOP_CLR_FD) = 0 [pid 412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 412] close(4) = 0 [pid 412] close(3) = 0 [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 412] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 0 [pid 412] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] ftruncate(3, 33587195) = 0 [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] open("./bus", O_RDONLY) = 4 [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... openat resumed>) = -1 EFAULT (Bad address) [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 1 [pid 412] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 411] <... futex resumed>) = 0 [pid 412] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 411] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 411] <... futex resumed>) = 0 [pid 412] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... futex resumed>) = 0 [pid 411] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 412] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 411] exit_group(0 [pid 412] <... futex resumed>) = ? [pid 411] <... exit_group resumed>) = ? [pid 412] +++ exited with 0 +++ [pid 411] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=411, si_uid=0, si_status=0, si_utime=4, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 413 ./strace-static-x86_64: Process 413 attached [pid 413] set_robust_list(0x5555558636e0, 24) = 0 [pid 413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 413] setpgid(0, 0) = 0 [pid 413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 413] write(3, "1000", 4) = 4 [pid 413] close(3) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 413] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 413] clone(child_stack=0x7f76e31452f0, 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 414 attached , parent_tid=[414], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 414 [pid 414] set_robust_list(0x7f76e31459e0, 24 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 414] <... set_robust_list resumed>) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 414] memfd_create("syzkaller", 0) = 3 [pid 414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 414] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 414] munmap(0x7f76dad25000, 32394836) = 0 [pid 414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 414] ioctl(4, LOOP_CLR_FD) = 0 [pid 414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 414] close(4) = 0 [pid 414] close(3) = 0 [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] <... futex resumed>) = 0 [pid 414] <... futex resumed>) = 1 [pid 414] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] <... open resumed>) = -1 EISDIR (Is a directory) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] ftruncate(3, 33587195) = 0 [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] open("./bus", O_RDONLY) = 4 [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 413] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 414] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 413] <... futex resumed>) = 0 [pid 413] exit_group(0) = ? [pid 414] +++ exited with 0 +++ [pid 413] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=413, si_uid=0, si_status=0, si_utime=1, si_stime=12} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 415 ./strace-static-x86_64: Process 415 attached [pid 415] set_robust_list(0x5555558636e0, 24) = 0 [pid 415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 415] setpgid(0, 0) = 0 [pid 415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 415] write(3, "1000", 4) = 4 [pid 415] close(3) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 415] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 415] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[416], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 416 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 416 attached [pid 416] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 416] memfd_create("syzkaller", 0) = 3 [pid 416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 416] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 416] munmap(0x7f76dad25000, 32394836) = 0 [pid 416] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 416] ioctl(4, LOOP_CLR_FD) = 0 [pid 416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 416] close(4) = 0 [pid 416] close(3) = 0 [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] ftruncate(3, 33587195) = 0 [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 416] <... futex resumed>) = 1 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] open("./bus", O_RDONLY) = 4 [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 415] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] <... futex resumed>) = 1 [pid 416] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 416] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = 0 [pid 415] exit_group(0) = ? [pid 416] <... futex resumed>) = ? [pid 416] +++ exited with 0 +++ [pid 415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=415, si_uid=0, si_status=0, si_utime=1, si_stime=12} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 418 ./strace-static-x86_64: Process 418 attached [pid 418] set_robust_list(0x5555558636e0, 24) = 0 [pid 418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 418] setpgid(0, 0) = 0 [pid 418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 418] write(3, "1000", 4) = 4 [pid 418] close(3) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 418] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 418] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[419], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 419 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 419 attached [pid 419] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 419] memfd_create("syzkaller", 0) = 3 [pid 419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 419] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 419] munmap(0x7f76dad25000, 32394836) = 0 [pid 419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 419] ioctl(4, LOOP_CLR_FD) = 0 [pid 419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 419] close(4) = 0 [pid 419] close(3) = 0 [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 419] ftruncate(3, 33587195 [pid 418] <... futex resumed>) = 0 [pid 419] <... ftruncate resumed>) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 419] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 418] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 0 [pid 419] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] open("./bus", O_RDONLY) = 4 [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 418] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 419] <... futex resumed>) = 1 [pid 419] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 419] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = 0 [pid 418] exit_group(0) = ? [pid 419] <... futex resumed>) = ? [pid 419] +++ exited with 0 +++ [pid 418] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=418, si_uid=0, si_status=0, si_utime=4, si_stime=10} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 420 ./strace-static-x86_64: Process 420 attached [pid 420] set_robust_list(0x5555558636e0, 24) = 0 [pid 420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 420] setpgid(0, 0) = 0 [pid 420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 420] write(3, "1000", 4) = 4 [pid 420] close(3) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 420] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 420] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[421], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 421 ./strace-static-x86_64: Process 421 attached [pid 421] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 421] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 421] <... futex resumed>) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 421] memfd_create("syzkaller", 0) = 3 [pid 421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 421] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 421] munmap(0x7f76dad25000, 32394836) = 0 [pid 421] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 421] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 421] ioctl(4, LOOP_CLR_FD) = 0 [pid 421] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 421] close(4) = 0 [pid 421] close(3) = 0 [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 421] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] <... open resumed>) = -1 EISDIR (Is a directory) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 421] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 421] <... open resumed>) = 3 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 421] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 420] <... futex resumed>) = 0 [pid 421] ftruncate(3, 33587195 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] <... ftruncate resumed>) = 0 [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 421] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] <... open resumed>) = -1 EISDIR (Is a directory) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 421] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] <... close_range resumed>) = 0 [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] open("./bus", O_RDONLY) = 4 [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 421] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 420] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 420] <... futex resumed>) = 0 [pid 420] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 421] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 420] <... futex resumed>) = 0 [pid 421] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 420] exit_group(0 [pid 421] <... futex resumed>) = ? [pid 420] <... exit_group resumed>) = ? [pid 421] +++ exited with 0 +++ [pid 420] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=420, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 422 ./strace-static-x86_64: Process 422 attached [pid 422] set_robust_list(0x5555558636e0, 24) = 0 [pid 422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 422] setpgid(0, 0) = 0 [pid 422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 422] write(3, "1000", 4) = 4 [pid 422] close(3) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 422] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 422] clone(child_stack=0x7f76e31452f0, 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 423 attached , parent_tid=[423], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 423 [pid 423] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 423] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 423] <... futex resumed>) = 0 [pid 423] memfd_create("syzkaller", 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 423] <... memfd_create resumed>) = 3 [pid 423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 423] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 423] munmap(0x7f76dad25000, 32394836) = 0 [pid 423] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 423] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 423] ioctl(4, LOOP_CLR_FD) = 0 [pid 423] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 423] close(4) = 0 [pid 423] close(3) = 0 [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] ftruncate(3, 33587195) = 0 [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 423] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 423] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 423] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] <... open resumed>) = -1 EISDIR (Is a directory) [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] <... close_range resumed>) = 0 [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] open("./bus", O_RDONLY) = 4 [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 423] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 423] sendfile(-1, -1, NULL, 142606339 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 422] <... futex resumed>) = 0 [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 423] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 422] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 423] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 422] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 423] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 422] exit_group(0) = ? [pid 423] <... futex resumed>) = ? [pid 423] +++ exited with 0 +++ [pid 422] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=422, si_uid=0, si_status=0, si_utime=2, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 424 ./strace-static-x86_64: Process 424 attached [pid 424] set_robust_list(0x5555558636e0, 24) = 0 [pid 424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 424] setpgid(0, 0) = 0 [pid 424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 424] write(3, "1000", 4) = 4 [pid 424] close(3) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 424] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 424] clone(child_stack=0x7f76e31452f0, 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 425 attached , parent_tid=[425], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 425 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] set_robust_list(0x7f76e31459e0, 24 [pid 424] <... futex resumed>) = 0 [pid 425] <... set_robust_list resumed>) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 425] memfd_create("syzkaller", 0) = 3 [pid 425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 425] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 425] munmap(0x7f76dad25000, 32394836) = 0 [pid 425] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 425] ioctl(4, LOOP_CLR_FD) = 0 [pid 425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 425] close(4) = 0 [pid 425] close(3) = 0 [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 424] <... futex resumed>) = 0 [pid 425] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] <... open resumed>) = -1 EISDIR (Is a directory) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 425] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 424] <... futex resumed>) = 1 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 0 [pid 425] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] ftruncate(3, 33587195) = 0 [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] open("./bus", O_RDONLY) = 4 [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... futex resumed>) = 1 [pid 425] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 425] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 424] exit_group(0) = ? [pid 425] <... futex resumed>) = ? [pid 425] +++ exited with 0 +++ [pid 424] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=424, si_uid=0, si_status=0, si_utime=3, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 426 ./strace-static-x86_64: Process 426 attached [pid 426] set_robust_list(0x5555558636e0, 24) = 0 [pid 426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 426] setpgid(0, 0) = 0 [pid 426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 426] write(3, "1000", 4) = 4 [pid 426] close(3) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 426] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 426] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[427], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 427 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 427 attached [pid 427] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 427] memfd_create("syzkaller", 0) = 3 [pid 427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 427] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 427] munmap(0x7f76dad25000, 32394836) = 0 [pid 427] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 427] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 427] ioctl(4, LOOP_CLR_FD) = 0 [pid 427] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 427] close(4) = 0 [pid 427] close(3) = 0 [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] ftruncate(3, 33587195) = 0 [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 426] <... futex resumed>) = 0 [pid 427] sendfile(-1, 3, NULL, 281474978811909 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 426] <... futex resumed>) = 0 [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] open("./bus", O_RDONLY) = 4 [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 426] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 1 [pid 427] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 427] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 426] exit_group(0) = ? [pid 427] <... futex resumed>) = ? [pid 427] +++ exited with 0 +++ [pid 426] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=426, si_uid=0, si_status=0, si_utime=3, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 428 attached , child_tidptr=0x5555558636d0) = 428 [pid 428] set_robust_list(0x5555558636e0, 24) = 0 [pid 428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 428] setpgid(0, 0) = 0 [pid 428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 428] write(3, "1000", 4) = 4 [pid 428] close(3) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 428] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 428] clone(child_stack=0x7f76e31452f0, 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 429 attached , parent_tid=[429], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 429 [pid 429] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 429] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 429] <... futex resumed>) = 0 [pid 429] memfd_create("syzkaller", 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 429] <... memfd_create resumed>) = 3 [pid 429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 429] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 429] munmap(0x7f76dad25000, 32394836) = 0 [pid 429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 429] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 429] ioctl(4, LOOP_CLR_FD) = 0 [pid 429] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 429] close(4) = 0 [pid 429] close(3) = 0 [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] <... futex resumed>) = 1 [pid 429] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] <... futex resumed>) = 1 [pid 429] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] <... futex resumed>) = 1 [pid 429] ftruncate(3, 33587195) = 0 [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] open("./bus", O_RDONLY) = 4 [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... futex resumed>) = 0 [pid 428] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 428] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] <... futex resumed>) = 1 [pid 429] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 429] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... futex resumed>) = 0 [pid 428] exit_group(0) = ? [pid 429] <... futex resumed>) = ? [pid 429] +++ exited with 0 +++ [pid 428] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=428, si_uid=0, si_status=0, si_utime=4, si_stime=10} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 431 attached [pid 431] set_robust_list(0x5555558636e0, 24) = 0 [pid 431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 431] setpgid(0, 0) = 0 [pid 431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 323] <... clone resumed>, child_tidptr=0x5555558636d0) = 431 [pid 431] <... openat resumed>) = 3 [pid 431] write(3, "1000", 4) = 4 [pid 431] close(3) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 431] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 431] clone(child_stack=0x7f76e31452f0, 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 432 attached , parent_tid=[432], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 432 [pid 432] set_robust_list(0x7f76e31459e0, 24 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... set_robust_list resumed>) = 0 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 432] memfd_create("syzkaller", 0) = 3 [pid 432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 432] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 432] munmap(0x7f76dad25000, 32394836) = 0 [pid 432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 432] ioctl(4, LOOP_CLR_FD) = 0 [pid 432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 432] close(4) = 0 [pid 432] close(3) = 0 [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 432] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... futex resumed>) = 0 [pid 432] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 432] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... open resumed>) = 3 [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 432] ftruncate(3, 33587195 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... ftruncate resumed>) = 0 [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] open("./bus", O_RDONLY) = 4 [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 431] <... futex resumed>) = 0 [pid 431] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 432] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 431] <... futex resumed>) = 0 [pid 431] exit_group(0) = ? [pid 432] +++ exited with 0 +++ [pid 431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=431, si_uid=0, si_status=0, si_utime=5, si_stime=8} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 433 ./strace-static-x86_64: Process 433 attached [pid 433] set_robust_list(0x5555558636e0, 24) = 0 [pid 433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 433] setpgid(0, 0) = 0 [pid 433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 433] write(3, "1000", 4) = 4 [pid 433] close(3) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 433] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 433] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[434], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 434 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 434 attached [pid 434] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 434] memfd_create("syzkaller", 0) = 3 [pid 434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 434] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 434] munmap(0x7f76dad25000, 32394836) = 0 [pid 434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 434] ioctl(4, LOOP_CLR_FD) = 0 [pid 434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 434] close(4) = 0 [pid 434] close(3) = 0 [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] ftruncate(3, 33587195) = 0 [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] open("./bus", O_RDONLY) = 4 [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 1 [pid 434] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 434] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 433] exit_group(0) = ? [pid 434] <... futex resumed>) = ? [pid 434] +++ exited with 0 +++ [pid 433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=433, si_uid=0, si_status=0, si_utime=2, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 435 ./strace-static-x86_64: Process 435 attached [pid 435] set_robust_list(0x5555558636e0, 24) = 0 [pid 435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 435] setpgid(0, 0) = 0 [pid 435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 435] write(3, "1000", 4) = 4 [pid 435] close(3) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 435] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 435] clone(child_stack=0x7f76e31452f0, 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 436 attached [pid 436] set_robust_list(0x7f76e31459e0, 24 [pid 435] <... clone resumed>, parent_tid=[436], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 436 [pid 436] <... set_robust_list resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 436] memfd_create("syzkaller", 0) = 3 [pid 436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 436] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 436] munmap(0x7f76dad25000, 32394836) = 0 [pid 436] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 436] ioctl(4, LOOP_CLR_FD) = 0 [pid 436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 436] close(4) = 0 [pid 436] close(3) = 0 [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 436] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] <... futex resumed>) = 0 [pid 436] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] <... futex resumed>) = 1 [pid 436] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] <... futex resumed>) = 1 [pid 436] ftruncate(3, 33587195) = 0 [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] <... futex resumed>) = 1 [pid 436] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] <... futex resumed>) = 1 [pid 436] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] open("./bus", O_RDONLY) = 4 [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] <... futex resumed>) = 0 [pid 436] <... futex resumed>) = 1 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 435] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 435] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 436] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 436] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 435] exit_group(0) = ? [pid 436] <... futex resumed>) = ? [pid 436] +++ exited with 0 +++ [pid 435] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=435, si_uid=0, si_status=0, si_utime=4, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 437 ./strace-static-x86_64: Process 437 attached [pid 437] set_robust_list(0x5555558636e0, 24) = 0 [pid 437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 437] setpgid(0, 0) = 0 [pid 437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 437] write(3, "1000", 4) = 4 [pid 437] close(3) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 437] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 437] clone(child_stack=0x7f76e31452f0, 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 438 attached [pid 438] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 438] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 437] <... clone resumed>, parent_tid=[438], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 438 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 438] <... futex resumed>) = 0 [pid 438] memfd_create("syzkaller", 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 438] <... memfd_create resumed>) = 3 [pid 438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 438] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 438] munmap(0x7f76dad25000, 32394836) = 0 [pid 438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 438] ioctl(4, LOOP_CLR_FD) = 0 [pid 438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 438] close(4) = 0 [pid 438] close(3) = 0 [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] <... open resumed>) = -1 EISDIR (Is a directory) [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 438] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] <... open resumed>) = 3 [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 438] ftruncate(3, 33587195 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] <... ftruncate resumed>) = 0 [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 438] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 438] <... open resumed>) = -1 EISDIR (Is a directory) [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 438] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] <... close_range resumed>) = 0 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] open("./bus", O_RDONLY) = 4 [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 437] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 438] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 437] <... futex resumed>) = 0 [pid 437] exit_group(0) = ? [pid 438] +++ exited with 0 +++ [pid 437] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=437, si_uid=0, si_status=0, si_utime=4, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 439 ./strace-static-x86_64: Process 439 attached [pid 439] set_robust_list(0x5555558636e0, 24) = 0 [pid 439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 439] setpgid(0, 0) = 0 [pid 439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 439] write(3, "1000", 4) = 4 [pid 439] close(3) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 439] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 439] clone(child_stack=0x7f76e31452f0, 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 440 attached [pid 440] set_robust_list(0x7f76e31459e0, 24 [pid 439] <... clone resumed>, parent_tid=[440], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 440 [pid 440] <... set_robust_list resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 440] memfd_create("syzkaller", 0) = 3 [pid 440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 440] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 440] munmap(0x7f76dad25000, 32394836) = 0 [pid 440] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 440] ioctl(4, LOOP_CLR_FD) = 0 [pid 440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 440] close(4) = 0 [pid 440] close(3) = 0 [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 439] <... futex resumed>) = 0 [pid 440] <... open resumed>) = -1 EISDIR (Is a directory) [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 440] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... open resumed>) = 3 [pid 439] <... futex resumed>) = 0 [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... futex resumed>) = 0 [pid 439] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 440] ftruncate(3, 33587195 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... ftruncate resumed>) = 0 [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 440] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 439] <... futex resumed>) = 0 [pid 440] sendfile(-1, 3, NULL, 281474978811909 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 440] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 440] open("./bus", O_RDONLY) = 4 [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 439] <... futex resumed>) = 0 [pid 440] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 439] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 439] <... futex resumed>) = 0 [pid 440] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... futex resumed>) = 0 [pid 439] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 440] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 439] exit_group(0 [pid 440] <... futex resumed>) = ? [pid 439] <... exit_group resumed>) = ? [pid 440] +++ exited with 0 +++ [pid 439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=439, si_uid=0, si_status=0, si_utime=2, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 441 ./strace-static-x86_64: Process 441 attached [pid 441] set_robust_list(0x5555558636e0, 24) = 0 [pid 441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 441] setpgid(0, 0) = 0 [pid 441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 441] write(3, "1000", 4) = 4 [pid 441] close(3) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 441] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 441] clone(child_stack=0x7f76e31452f0, 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 442 attached , parent_tid=[442], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 442 [pid 442] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 442] <... futex resumed>) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 442] memfd_create("syzkaller", 0) = 3 [pid 442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 442] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 442] munmap(0x7f76dad25000, 32394836) = 0 [pid 442] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 442] ioctl(4, LOOP_CLR_FD) = 0 [pid 442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 442] close(4) = 0 [pid 442] close(3) = 0 [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = 0 [pid 442] <... futex resumed>) = 1 [pid 442] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... open resumed>) = -1 EISDIR (Is a directory) [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... open resumed>) = 3 [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 442] <... futex resumed>) = 0 [pid 442] ftruncate(3, 33587195) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 442] <... futex resumed>) = 0 [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 442] <... futex resumed>) = 0 [pid 442] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 442] <... futex resumed>) = 0 [pid 442] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 442] <... futex resumed>) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 441] <... futex resumed>) = 0 [pid 442] write(-1, NULL, 0 [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 441] <... futex resumed>) = 0 [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 0 [pid 441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 442] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] open("./bus", O_RDONLY [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... open resumed>) = 4 [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 441] <... futex resumed>) = 0 [pid 442] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] <... ioctl resumed>, 0) = -1 EINVAL (Invalid argument) [pid 441] <... futex resumed>) = 0 [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 0 [pid 441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 441] <... futex resumed>) = 0 [pid 442] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... openat resumed>) = -1 EFAULT (Bad address) [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] sendfile(-1, -1, NULL, 142606339 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 441] <... futex resumed>) = 0 [pid 442] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 441] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] <... sendmsg resumed>) = -1 EBADF (Bad file descriptor) [pid 441] <... futex resumed>) = 0 [pid 442] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 0 [pid 441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 442] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] exit_group(0) = ? [pid 442] <... futex resumed>) = ? [pid 442] +++ exited with 0 +++ [pid 441] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=441, si_uid=0, si_status=0, si_utime=2, si_stime=8} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 444 ./strace-static-x86_64: Process 444 attached [pid 444] set_robust_list(0x5555558636e0, 24) = 0 [pid 444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 444] setpgid(0, 0) = 0 [pid 444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 444] write(3, "1000", 4) = 4 [pid 444] close(3) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 444] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 444] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[445], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 445 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 445 attached [pid 445] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 445] memfd_create("syzkaller", 0) = 3 [pid 445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 445] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 445] munmap(0x7f76dad25000, 32394836) = 0 [pid 445] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 445] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 445] ioctl(4, LOOP_CLR_FD) = 0 [pid 445] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 445] close(4) = 0 [pid 445] close(3) = 0 [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] ftruncate(3, 33587195) = 0 [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] open("./bus", O_RDONLY) = 4 [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 444] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 445] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 445] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 444] exit_group(0) = ? [pid 445] <... futex resumed>) = ? [pid 445] +++ exited with 0 +++ [pid 444] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=444, si_uid=0, si_status=0, si_utime=4, si_stime=7} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 446 attached , child_tidptr=0x5555558636d0) = 446 [pid 446] set_robust_list(0x5555558636e0, 24) = 0 [pid 446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 446] setpgid(0, 0) = 0 [pid 446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 446] write(3, "1000", 4) = 4 [pid 446] close(3) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 446] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 446] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[447], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 447 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 447 attached [pid 447] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 447] memfd_create("syzkaller", 0) = 3 [pid 447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 447] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 447] munmap(0x7f76dad25000, 32394836) = 0 [pid 447] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 447] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 447] ioctl(4, LOOP_CLR_FD) = 0 [pid 447] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 447] close(4) = 0 [pid 447] close(3) = 0 [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] ftruncate(3, 33587195) = 0 [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] open("./bus", O_RDONLY) = 4 [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 446] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 447] <... futex resumed>) = 1 [pid 447] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 447] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 446] exit_group(0) = ? [pid 447] <... futex resumed>) = ? [pid 447] +++ exited with 0 +++ [pid 446] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=446, si_uid=0, si_status=0, si_utime=5, si_stime=7} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 448 ./strace-static-x86_64: Process 448 attached [pid 448] set_robust_list(0x5555558636e0, 24) = 0 [pid 448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 448] setpgid(0, 0) = 0 [pid 448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 448] write(3, "1000", 4) = 4 [pid 448] close(3) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 448] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 448] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[449], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 449 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 449 attached [pid 449] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 449] memfd_create("syzkaller", 0) = 3 [pid 449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 449] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 449] munmap(0x7f76dad25000, 32394836) = 0 [pid 449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 449] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 449] ioctl(4, LOOP_CLR_FD) = 0 [pid 449] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 449] close(4) = 0 [pid 449] close(3) = 0 [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] ftruncate(3, 33587195) = 0 [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] open("./bus", O_RDONLY) = 4 [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 448] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 449] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 449] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 0 [pid 448] exit_group(0) = ? [pid 449] <... futex resumed>) = ? [pid 449] +++ exited with 0 +++ [pid 448] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=448, si_uid=0, si_status=0, si_utime=3, si_stime=9} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 450 ./strace-static-x86_64: Process 450 attached [pid 450] set_robust_list(0x5555558636e0, 24) = 0 [pid 450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 450] setpgid(0, 0) = 0 [pid 450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 450] write(3, "1000", 4) = 4 [pid 450] close(3) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 450] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 450] clone(child_stack=0x7f76e31452f0, 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 451 attached , parent_tid=[451], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 451 [pid 451] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 451] futex(0x7f76e3226708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 451] <... futex resumed>) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 451] memfd_create("syzkaller", 0) = 3 [pid 451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 451] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 451] munmap(0x7f76dad25000, 32394836) = 0 [pid 451] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 451] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 451] ioctl(4, LOOP_CLR_FD) = 0 [pid 451] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 451] close(4) = 0 [pid 451] close(3) = 0 [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 451] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] <... open resumed>) = -1 EISDIR (Is a directory) [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 451] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] <... open resumed>) = 3 [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] ftruncate(3, 33587195 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] <... ftruncate resumed>) = 0 [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 451] sendfile(-1, 3, NULL, 281474978811909 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 451] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 450] <... futex resumed>) = 0 [pid 451] <... open resumed>) = -1 EISDIR (Is a directory) [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] open("./bus", O_RDONLY) = 4 [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] <... futex resumed>) = 1 [pid 451] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 450] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 451] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 450] <... futex resumed>) = 0 [pid 450] exit_group(0) = ? [pid 451] +++ exited with 0 +++ [pid 450] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=450, si_uid=0, si_status=0, si_utime=2, si_stime=8} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 452 ./strace-static-x86_64: Process 452 attached [pid 452] set_robust_list(0x5555558636e0, 24) = 0 [pid 452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 452] setpgid(0, 0) = 0 [pid 452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 452] write(3, "1000", 4) = 4 [pid 452] close(3) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 452] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 452] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[453], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 453 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 453 attached [pid 453] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 453] memfd_create("syzkaller", 0) = 3 [pid 453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000 [pid 453] write(3, "\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\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\x00\x00\x00\x00"..., 32394836) = 32394836 [pid 453] munmap(0x7f76dad25000, 32394836) = 0 [pid 453] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 453] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 453] ioctl(4, LOOP_CLR_FD) = 0 [pid 453] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 453] close(4) = 0 [pid 453] close(3) = 0 [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 452] <... futex resumed>) = 0 [pid 453] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... open resumed>) = -1 EISDIR (Is a directory) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] open("./file2", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] ftruncate(3, 33587195) = 0 [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] sendfile(-1, 3, NULL, 281474978811909) = -1 EBADF (Bad file descriptor) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = -1 EISDIR (Is a directory) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] close_range(4294967295, 4294967295, CLOSE_RANGE_UNSHARE) = 0 [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] open("./bus", O_RDONLY) = 4 [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = -1 EINVAL (Invalid argument) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EFAULT (Bad address) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] sendfile(-1, -1, NULL, 142606339) = -1 EBADF (Bad file descriptor) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 452] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 453] <... futex resumed>) = 1 [pid 453] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EBADF (Bad file descriptor) [pid 453] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 0 [pid 452] exit_group(0) = ? [pid 453] <... futex resumed>) = ? [pid 453] +++ exited with 0 +++ [pid 452] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=452, si_uid=0, si_status=0, si_utime=2, si_stime=10} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558636d0) = 454 ./strace-static-x86_64: Process 454 attached [pid 454] set_robust_list(0x5555558636e0, 24) = 0 [pid 454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 454] setpgid(0, 0) = 0 [pid 454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 454] write(3, "1000", 4) = 4 [pid 454] close(3) = 0 [pid 454] futex(0x7f76e322670c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f76e3125000 [pid 454] mprotect(0x7f76e3126000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 454] clone(child_stack=0x7f76e31452f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[455], tls=0x7f76e3145700, child_tidptr=0x7f76e31459d0) = 455 [pid 454] futex(0x7f76e3226708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 454] futex(0x7f76e322670c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 455 attached [pid 455] set_robust_list(0x7f76e31459e0, 24) = 0 [pid 455] memfd_create("syzkaller", 0) = 3 [pid 455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f76dad25000