./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3890518684 <...> Warning: Permanently added '10.128.0.109' (ED25519) to the list of known hosts. execve("./syz-executor3890518684", ["./syz-executor3890518684"], 0x7ffdc727fd50 /* 10 vars */) = 0 brk(NULL) = 0x55557b776000 brk(0x55557b776d40) = 0x55557b776d40 arch_prctl(ARCH_SET_FS, 0x55557b7763c0) = 0 set_tid_address(0x55557b776690) = 5241 set_robust_list(0x55557b7766a0, 24) = 0 rseq(0x55557b776ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3890518684", 4096) = 28 getrandom("\x83\xca\x39\x14\xf6\x18\x5e\x3a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557b776d40 brk(0x55557b797d40) = 0x55557b797d40 brk(0x55557b798000) = 0x55557b798000 mprotect(0x7f3be8c40000, 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 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./strace-static-x86_64: Process 5243 attached [pid 5243] set_robust_list(0x55557b7766a0, 24 [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 5243 [pid 5243] <... set_robust_list resumed>) = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5243] setpgid(0, 0) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3) = 0 [pid 5243] write(1, "executing program\n", 18executing program ) = 18 [pid 5243] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5243] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5243] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5243] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5243] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5244 attached => {parent_tid=[5244]}, 88) = 5244 [pid 5243] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5244] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5243] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5243] <... futex resumed>) = 0 [pid 5244] <... set_robust_list resumed>) = 0 [pid 5243] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5244] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5244] memfd_create("syzkaller", 0) = 3 [pid 5244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5244] 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"..., 16777216) = 16777216 [pid 5244] munmap(0x7f3be0600000, 138412032) = 0 [pid 5244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5244] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5244] close(3) = 0 [pid 5244] close(4) = 0 [pid 5244] mkdir("./file0", 0777) = 0 [ 248.630085][ T5244] loop0: detected capacity change from 0 to 32768 [ 248.662820][ T5244] ======================================================= [ 248.662820][ T5244] WARNING: The mand mount option has been deprecated and [ 248.662820][ T5244] and is ignored by this kernel. Remove the mand [ 248.662820][ T5244] option from the mount to silence this warning. [ 248.662820][ T5244] ======================================================= [ 248.726823][ T5244] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,compression=zstd,norecovery,recovery_pass_last=check_dirents,nojournal_transaction_names,version_upgrade=none [ 248.745636][ T5244] bcachefs (loop0): recovering from clean shutdown, journal seq 7 [ 248.759537][ T5244] invalid bkey u64s 11 type alloc_v4 0:14:0 len 0 ver 0: [ 248.759557][ T5244] gen 0 oldest_gen 0 data_type journal [ 248.759563][ T5244] journal_seq 1 [ 248.759568][ T5244] need_discard 1 [ 248.759574][ T5244] need_inc_gen 1 [ 248.759579][ T5244] dirty_sectors 256 [ 248.759584][ T5244] stripe_sectors 0 [ 248.759589][ T5244] cached_sectors 0 [ 248.759595][ T5244] stripe 67108864 [ 248.759600][ T5244] stripe_redundancy 0 [ 248.759605][ T5244] io_time[READ] 1 [ 248.759610][ T5244] io_time[WRITE] 1 [ 248.759616][ T5244] fragmentation 0 [ 248.759621][ T5244] bp_start 8 [ 248.759626][ T5244] [ 248.759631][ T5244] invalid data type (got 2 should be 7): delete?, fixing [ 248.837333][ T5244] bcachefs (loop0): accounting_read... done [ 248.843622][ T5244] bcachefs (loop0): alloc_read... done [ 248.849299][ T5244] bcachefs (loop0): stripes_read... done [ 248.854980][ T5244] bcachefs (loop0): snapshots_read... done [ 248.863214][ T5244] bcachefs (loop0): going read-write [pid 5244] mount("/dev/loop0", "./file0", "bcachefs", MS_NODEV|MS_MANDLOCK, "errors=continue,inodes_32bit,compression=zstd,norecovery,version_upgrade=none,recovery_pass_last=che"...) = 0 [pid 5244] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5244] chdir("./file0") = 0 [pid 5244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5244] ioctl(4, LOOP_CLR_FD) = 0 [pid 5244] close(4) = 0 [pid 5244] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5244] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] <... futex resumed>) = 0 [ 248.873577][ T5244] bcachefs (loop0): Fixed errors, running fsck a second time to verify fs is clean [ 248.885609][ T5244] bcachefs (loop0): done starting filesystem [pid 5243] exit_group(0) = ? [pid 5244] <... futex resumed>) = ? [pid 5244] +++ exited with 0 +++ [pid 5243] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- 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 5255 attached , child_tidptr=0x55557b776690) = 5255 [pid 5255] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5255] setpgid(0, 0) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5255] write(3, "1000", 4) = 4 [pid 5255] close(3) = 0 [pid 5255] write(1, "executing program\n", 18executing program ) = 18 [pid 5255] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5255] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5256 attached => {parent_tid=[5256]}, 88) = 5256 [pid 5256] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5255] rt_sigprocmask(SIG_SETMASK, [], [pid 5256] <... rseq resumed>) = 0 [pid 5255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5255] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5256] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5256] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5256] memfd_create("syzkaller", 0) = 3 [pid 5256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5256] 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"..., 16777216) = 16777216 [pid 5256] munmap(0x7f3be0600000, 138412032) = 0 [pid 5256] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5256] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5256] ioctl(4, LOOP_CLR_FD) = 0 [pid 5256] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5256] close(4) = 0 [pid 5256] close(3) = 0 [pid 5256] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5256] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5255] exit_group(0 [pid 5256] <... futex resumed>) = ? [pid 5256] +++ exited with 0 +++ [pid 5255] <... exit_group resumed>) = ? [pid 5255] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5257 attached , child_tidptr=0x55557b776690) = 5257 [pid 5257] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5257] setpgid(0, 0) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5257] write(3, "1000", 4) = 4 [pid 5257] close(3executing program ) = 0 [pid 5257] write(1, "executing program\n", 18) = 18 [pid 5257] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5257] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5257] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5258 attached [pid 5258] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5257] <... clone3 resumed> => {parent_tid=[5258]}, 88) = 5258 [pid 5258] <... rseq resumed>) = 0 [pid 5257] rt_sigprocmask(SIG_SETMASK, [], [pid 5258] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5258] <... set_robust_list resumed>) = 0 [pid 5257] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5258] memfd_create("syzkaller", 0 [pid 5257] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5258] <... memfd_create resumed>) = 3 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5258] 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"..., 16777216) = 16777216 [pid 5258] munmap(0x7f3be0600000, 138412032) = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5258] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5258] ioctl(4, LOOP_CLR_FD) = 0 [pid 5258] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5258] close(4) = 0 [pid 5258] close(3) = 0 [pid 5258] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5258] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] exit_group(0) = ? [pid 5258] <... futex resumed>) = ? [pid 5258] +++ exited with 0 +++ [pid 5257] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5259 attached , child_tidptr=0x55557b776690) = 5259 [pid 5259] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5259] setpgid(0, 0) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5259] write(3, "1000", 4) = 4 [pid 5259] close(3) = 0 executing program [pid 5259] write(1, "executing program\n", 18) = 18 [pid 5259] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5259] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5259] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5259] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5260 attached => {parent_tid=[5260]}, 88) = 5260 [pid 5259] rt_sigprocmask(SIG_SETMASK, [], [pid 5260] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5259] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5260] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5259] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5260] <... set_robust_list resumed>) = 0 [pid 5259] <... futex resumed>) = 0 [pid 5260] rt_sigprocmask(SIG_SETMASK, [], [pid 5259] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5260] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5260] memfd_create("syzkaller", 0) = 3 [pid 5260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5260] 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"..., 16777216) = 16777216 [pid 5260] munmap(0x7f3be0600000, 138412032) = 0 [pid 5260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5260] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5260] ioctl(4, LOOP_CLR_FD) = 0 [pid 5260] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5260] close(4) = 0 [pid 5260] close(3) = 0 [pid 5260] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5260] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5259] <... futex resumed>) = 0 [pid 5259] exit_group(0 [pid 5260] <... futex resumed>) = ? [pid 5259] <... exit_group resumed>) = ? [pid 5260] +++ exited with 0 +++ [pid 5259] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5261 attached [pid 5261] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 5261 [pid 5261] <... prctl resumed>) = 0 [pid 5261] setpgid(0, 0) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5261] write(3, "1000", 4) = 4 [pid 5261] close(3) = 0 executing program [pid 5261] write(1, "executing program\n", 18) = 18 [pid 5261] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5261] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5261] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5261] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5261] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5261] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5262 attached [pid 5262] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5261] <... clone3 resumed> => {parent_tid=[5262]}, 88) = 5262 [pid 5262] <... rseq resumed>) = 0 [pid 5262] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5262] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5261] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5261] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5262] memfd_create("syzkaller", 0) = 3 [pid 5262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5262] 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"..., 16777216) = 16777216 [pid 5262] munmap(0x7f3be0600000, 138412032) = 0 [pid 5262] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5262] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5262] ioctl(4, LOOP_CLR_FD) = 0 [pid 5262] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5262] close(4) = 0 [pid 5262] close(3) = 0 [pid 5262] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5261] <... futex resumed>) = 0 [pid 5261] exit_group(0 [pid 5262] <... futex resumed>) = ? [pid 5261] <... exit_group resumed>) = ? [pid 5262] +++ exited with 0 +++ [pid 5261] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 5263 attached , child_tidptr=0x55557b776690) = 5263 [pid 5263] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5263] setpgid(0, 0) = 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5263] write(3, "1000", 4) = 4 [pid 5263] close(3) = 0 executing program [pid 5263] write(1, "executing program\n", 18) = 18 [pid 5263] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5263] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5263] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5264 attached [pid 5264] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5263] <... clone3 resumed> => {parent_tid=[5264]}, 88) = 5264 [pid 5264] <... rseq resumed>) = 0 [pid 5263] rt_sigprocmask(SIG_SETMASK, [], [pid 5264] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5264] <... set_robust_list resumed>) = 0 [pid 5263] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5264] memfd_create("syzkaller", 0) = 3 [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5264] 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"..., 16777216) = 16777216 [pid 5264] munmap(0x7f3be0600000, 138412032) = 0 [pid 5264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5264] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5264] ioctl(4, LOOP_CLR_FD) = 0 [pid 5264] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5264] close(4) = 0 [pid 5264] close(3) = 0 [pid 5264] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5264] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] exit_group(0 [pid 5264] <... futex resumed>) = ? [pid 5264] +++ exited with 0 +++ [pid 5263] <... exit_group resumed>) = ? [pid 5263] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 5265 attached , child_tidptr=0x55557b776690) = 5265 [pid 5265] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5265] setpgid(0, 0) = 0 [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5265] write(3, "1000", 4) = 4 [pid 5265] close(3) = 0 executing program [pid 5265] write(1, "executing program\n", 18) = 18 [pid 5265] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5265] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5265] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5265] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5265] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5266 attached [pid 5266] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5266] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5265] <... clone3 resumed> => {parent_tid=[5266]}, 88) = 5266 [pid 5266] <... set_robust_list resumed>) = 0 [pid 5265] rt_sigprocmask(SIG_SETMASK, [], [pid 5266] rt_sigprocmask(SIG_SETMASK, [], [pid 5265] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5265] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] memfd_create("syzkaller", 0 [pid 5265] <... futex resumed>) = 0 [pid 5265] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5266] <... memfd_create resumed>) = 3 [pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5266] 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"..., 16777216) = 16777216 [pid 5266] munmap(0x7f3be0600000, 138412032) = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5266] ioctl(4, LOOP_CLR_FD) = 0 [pid 5266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5266] close(4) = 0 [pid 5266] close(3) = 0 [pid 5266] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] <... futex resumed>) = 0 [pid 5266] <... futex resumed>) = 1 [pid 5265] exit_group(0 [pid 5266] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5265] <... exit_group resumed>) = ? [pid 5266] +++ exited with 0 +++ [pid 5265] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} --- 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 5267 attached [pid 5267] set_robust_list(0x55557b7766a0, 24 [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 5267 [pid 5267] <... set_robust_list resumed>) = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5267] setpgid(0, 0) = 0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5267] write(3, "1000", 4) = 4 [pid 5267] close(3) = 0 [pid 5267] write(1, "executing program\n", 18executing program ) = 18 [pid 5267] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5267] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5267] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5267] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5267] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5267] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5267] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5268 attached => {parent_tid=[5268]}, 88) = 5268 [pid 5268] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5268] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5268] rt_sigprocmask(SIG_SETMASK, [], [pid 5267] rt_sigprocmask(SIG_SETMASK, [], [pid 5268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5267] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5268] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5267] <... futex resumed>) = 0 [pid 5268] memfd_create("syzkaller", 0 [pid 5267] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5268] <... memfd_create resumed>) = 3 [pid 5268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5268] 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"..., 16777216) = 16777216 [pid 5268] munmap(0x7f3be0600000, 138412032) = 0 [pid 5268] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5268] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5268] ioctl(4, LOOP_CLR_FD) = 0 [pid 5268] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5268] close(4) = 0 [pid 5268] close(3) = 0 [pid 5268] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5267] <... futex resumed>) = 0 [pid 5268] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] exit_group(0 [pid 5268] <... futex resumed>) = ? [pid 5268] +++ exited with 0 +++ [pid 5267] <... exit_group resumed>) = ? [pid 5267] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5269 attached , child_tidptr=0x55557b776690) = 5269 [pid 5269] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5269] setpgid(0, 0) = 0 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5269] write(3, "1000", 4) = 4 [pid 5269] close(3) = 0 [pid 5269] write(1, "executing program\n", 18executing program ) = 18 [pid 5269] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5269] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5269] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5270 attached [pid 5270] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5269] <... clone3 resumed> => {parent_tid=[5270]}, 88) = 5270 [pid 5270] <... rseq resumed>) = 0 [pid 5269] rt_sigprocmask(SIG_SETMASK, [], [pid 5270] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5270] <... set_robust_list resumed>) = 0 [pid 5269] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5269] <... futex resumed>) = 0 [pid 5270] memfd_create("syzkaller", 0 [pid 5269] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5270] <... memfd_create resumed>) = 3 [pid 5270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5270] 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"..., 16777216) = 16777216 [pid 5270] munmap(0x7f3be0600000, 138412032) = 0 [pid 5270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5270] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5270] ioctl(4, LOOP_CLR_FD) = 0 [pid 5270] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5270] close(4) = 0 [pid 5270] close(3) = 0 [pid 5270] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] <... futex resumed>) = 0 [pid 5269] exit_group(0 [pid 5270] <... futex resumed>) = ? [pid 5269] <... exit_group resumed>) = ? [pid 5270] +++ exited with 0 +++ [pid 5269] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- 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 5271 attached [pid 5271] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 5271 [pid 5271] <... prctl resumed>) = 0 [pid 5271] setpgid(0, 0) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5271] write(3, "1000", 4) = 4 [pid 5271] close(3) = 0 [pid 5271] write(1, "executing program\n", 18executing program ) = 18 [pid 5271] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5271] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5271] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5271] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5271] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5271] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5272 attached [pid 5272] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5271] <... clone3 resumed> => {parent_tid=[5272]}, 88) = 5272 [pid 5272] <... rseq resumed>) = 0 [pid 5271] rt_sigprocmask(SIG_SETMASK, [], [pid 5272] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5271] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5272] <... set_robust_list resumed>) = 0 [pid 5271] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5271] <... futex resumed>) = 0 [pid 5272] memfd_create("syzkaller", 0 [pid 5271] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5272] <... memfd_create resumed>) = 3 [pid 5272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5272] 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"..., 16777216) = 16777216 [pid 5272] munmap(0x7f3be0600000, 138412032) = 0 [pid 5272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5272] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5272] ioctl(4, LOOP_CLR_FD) = 0 [pid 5272] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5272] close(4) = 0 [pid 5272] close(3) = 0 [pid 5272] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5271] <... futex resumed>) = 0 [pid 5272] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] exit_group(0 [pid 5272] <... futex resumed>) = ? [pid 5271] <... exit_group resumed>) = ? [pid 5272] +++ exited with 0 +++ [pid 5271] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5273 attached [pid 5273] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 5273 [pid 5273] <... prctl resumed>) = 0 [pid 5273] setpgid(0, 0) = 0 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5273] write(3, "1000", 4) = 4 [pid 5273] close(3) = 0 [pid 5273] write(1, "executing program\n", 18executing program ) = 18 [pid 5273] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5273] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5273] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5273] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5273] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5274 attached [pid 5274] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5273] <... clone3 resumed> => {parent_tid=[5274]}, 88) = 5274 [pid 5274] <... rseq resumed>) = 0 [pid 5273] rt_sigprocmask(SIG_SETMASK, [], [pid 5274] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5273] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5274] <... set_robust_list resumed>) = 0 [pid 5273] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5273] <... futex resumed>) = 0 [pid 5274] memfd_create("syzkaller", 0 [pid 5273] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5274] <... memfd_create resumed>) = 3 [pid 5274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5274] 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"..., 16777216) = 16777216 [pid 5274] munmap(0x7f3be0600000, 138412032) = 0 [pid 5274] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5274] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5274] ioctl(4, LOOP_CLR_FD) = 0 [pid 5274] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5274] close(4) = 0 [pid 5274] close(3) = 0 [pid 5274] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5274] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5273] exit_group(0 [pid 5274] <... futex resumed>) = ? [pid 5273] <... exit_group resumed>) = ? [pid 5274] +++ exited with 0 +++ [pid 5273] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5275 attached , child_tidptr=0x55557b776690) = 5275 [pid 5275] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5275] setpgid(0, 0) = 0 [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5275] write(3, "1000", 4) = 4 [pid 5275] close(3) = 0 executing program [pid 5275] write(1, "executing program\n", 18) = 18 [pid 5275] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5275] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5275] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5275] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5275] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5276 attached [pid 5276] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5275] <... clone3 resumed> => {parent_tid=[5276]}, 88) = 5276 [pid 5276] <... rseq resumed>) = 0 [pid 5275] rt_sigprocmask(SIG_SETMASK, [], [pid 5276] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5275] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5276] <... set_robust_list resumed>) = 0 [pid 5275] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] rt_sigprocmask(SIG_SETMASK, [], [pid 5275] <... futex resumed>) = 0 [pid 5276] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5275] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5276] memfd_create("syzkaller", 0) = 3 [pid 5276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5276] 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"..., 16777216) = 16777216 [pid 5276] munmap(0x7f3be0600000, 138412032) = 0 [pid 5276] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5276] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5276] ioctl(4, LOOP_CLR_FD) = 0 [pid 5276] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5276] close(4) = 0 [pid 5276] close(3) = 0 [pid 5276] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5275] <... futex resumed>) = 0 [pid 5276] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5275] exit_group(0 [pid 5276] <... futex resumed>) = ? [pid 5276] +++ exited with 0 +++ [pid 5275] <... exit_group resumed>) = ? [pid 5275] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5277 attached , child_tidptr=0x55557b776690) = 5277 [pid 5277] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5277] setpgid(0, 0) = 0 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5277] write(3, "1000", 4) = 4 [pid 5277] close(3) = 0 executing program [pid 5277] write(1, "executing program\n", 18) = 18 [pid 5277] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5277] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5277] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5277] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5278 attached => {parent_tid=[5278]}, 88) = 5278 [pid 5277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5278] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5277] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5277] <... futex resumed>) = 0 [pid 5278] <... set_robust_list resumed>) = 0 [pid 5278] rt_sigprocmask(SIG_SETMASK, [], [pid 5277] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5278] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5278] memfd_create("syzkaller", 0) = 3 [pid 5278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5278] 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"..., 16777216) = 16777216 [pid 5278] munmap(0x7f3be0600000, 138412032) = 0 [pid 5278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5278] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5278] ioctl(4, LOOP_CLR_FD) = 0 [pid 5278] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5278] close(4) = 0 [pid 5278] close(3) = 0 [pid 5278] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5278] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5277] exit_group(0 [pid 5278] <... futex resumed>) = ? [pid 5277] <... exit_group resumed>) = ? [pid 5278] +++ exited with 0 +++ [pid 5277] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5279 attached , child_tidptr=0x55557b776690) = 5279 [pid 5279] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5279] setpgid(0, 0) = 0 [pid 5279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5279] write(3, "1000", 4) = 4 [pid 5279] close(3) = 0 [pid 5279] write(1, "executing program\n", 18executing program ) = 18 [pid 5279] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5279] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5279] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5279] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5279] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5279] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5280 attached [pid 5280] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5279] <... clone3 resumed> => {parent_tid=[5280]}, 88) = 5280 [pid 5280] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5279] rt_sigprocmask(SIG_SETMASK, [], [pid 5280] <... set_robust_list resumed>) = 0 [pid 5279] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5280] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5279] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] memfd_create("syzkaller", 0 [pid 5279] <... futex resumed>) = 0 [pid 5279] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5280] <... memfd_create resumed>) = 3 [pid 5280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5280] 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"..., 16777216) = 16777216 [pid 5280] munmap(0x7f3be0600000, 138412032) = 0 [pid 5280] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5280] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5280] ioctl(4, LOOP_CLR_FD) = 0 [pid 5280] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5280] close(4) = 0 [pid 5280] close(3) = 0 [pid 5280] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5279] <... futex resumed>) = 0 [pid 5280] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5279] exit_group(0 [pid 5280] <... futex resumed>) = ? [pid 5279] <... exit_group resumed>) = ? [pid 5280] +++ exited with 0 +++ [pid 5279] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5279, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- 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 5281 attached , child_tidptr=0x55557b776690) = 5281 [pid 5281] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5281] setpgid(0, 0) = 0 [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5281] write(3, "1000", 4) = 4 [pid 5281] close(3) = 0 executing program [pid 5281] write(1, "executing program\n", 18) = 18 [pid 5281] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5281] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5281] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5281] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5281] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5282 attached [pid 5282] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5282] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5282] rt_sigprocmask(SIG_SETMASK, [], [pid 5281] <... clone3 resumed> => {parent_tid=[5282]}, 88) = 5282 [pid 5282] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5282] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5281] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5281] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = 1 [pid 5281] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5282] memfd_create("syzkaller", 0) = 3 [pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5282] 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"..., 16777216) = 16777216 [pid 5282] munmap(0x7f3be0600000, 138412032) = 0 [pid 5282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5282] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5282] ioctl(4, LOOP_CLR_FD) = 0 [pid 5282] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5282] close(4) = 0 [pid 5282] close(3) = 0 [pid 5282] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5282] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5281] <... futex resumed>) = 0 [pid 5281] exit_group(0 [pid 5282] <... futex resumed>) = ? [pid 5281] <... exit_group resumed>) = ? [pid 5282] +++ exited with 0 +++ [pid 5281] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5283 attached , child_tidptr=0x55557b776690) = 5283 [pid 5283] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5283] setpgid(0, 0) = 0 [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5283] write(3, "1000", 4) = 4 [pid 5283] close(3) = 0 executing program [pid 5283] write(1, "executing program\n", 18) = 18 [pid 5283] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5283] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5283] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5283] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5283] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5283] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5284 attached [pid 5284] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5283] <... clone3 resumed> => {parent_tid=[5284]}, 88) = 5284 [pid 5284] <... rseq resumed>) = 0 [pid 5283] rt_sigprocmask(SIG_SETMASK, [], [pid 5284] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5284] <... set_robust_list resumed>) = 0 [pid 5283] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5283] <... futex resumed>) = 0 [pid 5284] memfd_create("syzkaller", 0 [pid 5283] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5284] <... memfd_create resumed>) = 3 [pid 5284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5284] 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"..., 16777216) = 16777216 [pid 5284] munmap(0x7f3be0600000, 138412032) = 0 [pid 5284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5284] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5284] ioctl(4, LOOP_CLR_FD) = 0 [pid 5284] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5284] close(4) = 0 [pid 5284] close(3) = 0 [pid 5284] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5284] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] <... futex resumed>) = 0 [pid 5283] exit_group(0 [pid 5284] <... futex resumed>) = ? [pid 5283] <... exit_group resumed>) = ? [pid 5284] +++ exited with 0 +++ [pid 5283] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- 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 5285 attached , child_tidptr=0x55557b776690) = 5285 [pid 5285] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5285] setpgid(0, 0) = 0 [pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5285] write(3, "1000", 4) = 4 [pid 5285] close(3) = 0 [pid 5285] write(1, "executing program\n", 18executing program ) = 18 [pid 5285] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5285] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5285] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5285] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5285] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5285] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5286 attached => {parent_tid=[5286]}, 88) = 5286 [pid 5285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5286] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5285] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5285] <... futex resumed>) = 0 [pid 5286] <... set_robust_list resumed>) = 0 [pid 5285] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5286] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5286] memfd_create("syzkaller", 0) = 3 [pid 5286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5286] 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"..., 16777216) = 16777216 [pid 5286] munmap(0x7f3be0600000, 138412032) = 0 [pid 5286] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5286] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5286] ioctl(4, LOOP_CLR_FD) = 0 [pid 5286] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5286] close(4) = 0 [pid 5286] close(3) = 0 [pid 5286] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5286] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5285] exit_group(0) = ? [pid 5286] <... futex resumed>) = ? [pid 5286] +++ exited with 0 +++ [pid 5285] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5285, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} --- 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 5287 attached , child_tidptr=0x55557b776690) = 5287 [pid 5287] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5287] setpgid(0, 0) = 0 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5287] write(3, "1000", 4) = 4 [pid 5287] close(3) = 0 executing program [pid 5287] write(1, "executing program\n", 18) = 18 [pid 5287] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5287] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5287] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5287] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5287] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5288 attached [pid 5288] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5287] <... clone3 resumed> => {parent_tid=[5288]}, 88) = 5288 [pid 5288] <... rseq resumed>) = 0 [pid 5287] rt_sigprocmask(SIG_SETMASK, [], [pid 5288] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5287] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5288] <... set_robust_list resumed>) = 0 [pid 5287] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5288] memfd_create("syzkaller", 0) = 3 [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5288] 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"..., 16777216) = 16777216 [pid 5288] munmap(0x7f3be0600000, 138412032) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5288] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5288] ioctl(4, LOOP_CLR_FD) = 0 [pid 5288] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5288] close(4) = 0 [pid 5288] close(3) = 0 [pid 5288] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5288] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5287] exit_group(0 [pid 5288] <... futex resumed>) = ? [pid 5287] <... exit_group resumed>) = ? [pid 5288] +++ exited with 0 +++ [pid 5287] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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=0x55557b776690) = 5289 ./strace-static-x86_64: Process 5289 attached [pid 5289] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5289] setpgid(0, 0) = 0 [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5289] write(3, "1000", 4) = 4 [pid 5289] close(3) = 0 [pid 5289] write(1, "executing program\n", 18executing program ) = 18 [pid 5289] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5289] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5289] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5289] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5289] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5290 attached [pid 5290] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5289] <... clone3 resumed> => {parent_tid=[5290]}, 88) = 5290 [pid 5290] <... rseq resumed>) = 0 [pid 5289] rt_sigprocmask(SIG_SETMASK, [], [pid 5290] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5289] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5290] <... set_robust_list resumed>) = 0 [pid 5289] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5289] <... futex resumed>) = 0 [pid 5290] memfd_create("syzkaller", 0 [pid 5289] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5290] <... memfd_create resumed>) = 3 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5290] 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"..., 16777216) = 16777216 [pid 5290] munmap(0x7f3be0600000, 138412032) = 0 [pid 5290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5290] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5290] ioctl(4, LOOP_CLR_FD) = 0 [pid 5290] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5290] close(4) = 0 [pid 5290] close(3) = 0 [pid 5290] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5290] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5289] exit_group(0 [pid 5290] <... futex resumed>) = ? [pid 5290] +++ exited with 0 +++ [pid 5289] <... exit_group resumed>) = ? [pid 5289] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5291 attached , child_tidptr=0x55557b776690) = 5291 [pid 5291] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5291] setpgid(0, 0) = 0 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5291] write(3, "1000", 4) = 4 [pid 5291] close(3) = 0 [pid 5291] write(1, "executing program\n", 18executing program ) = 18 [pid 5291] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5291] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5291] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5291] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5292 attached => {parent_tid=[5292]}, 88) = 5292 [pid 5292] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5292] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5291] rt_sigprocmask(SIG_SETMASK, [], [pid 5292] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5291] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] <... futex resumed>) = 0 [pid 5291] <... futex resumed>) = 1 [pid 5292] memfd_create("syzkaller", 0 [pid 5291] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5292] <... memfd_create resumed>) = 3 [pid 5292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5292] 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"..., 16777216) = 16777216 [pid 5292] munmap(0x7f3be0600000, 138412032) = 0 [pid 5292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5292] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5292] ioctl(4, LOOP_CLR_FD) = 0 [pid 5292] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5292] close(4) = 0 [pid 5292] close(3) = 0 [pid 5292] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5292] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] exit_group(0 [pid 5292] <... futex resumed>) = ? [pid 5291] <... exit_group resumed>) = ? [pid 5292] +++ exited with 0 +++ [pid 5291] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5293 attached , child_tidptr=0x55557b776690) = 5293 [pid 5293] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5293] setpgid(0, 0) = 0 [pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5293] write(3, "1000", 4) = 4 [pid 5293] close(3) = 0 executing program [pid 5293] write(1, "executing program\n", 18) = 18 [pid 5293] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5293] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5293] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5293] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5293] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5294 attached [pid 5294] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5293] <... clone3 resumed> => {parent_tid=[5294]}, 88) = 5294 [pid 5294] <... rseq resumed>) = 0 [pid 5293] rt_sigprocmask(SIG_SETMASK, [], [pid 5294] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5293] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5294] rt_sigprocmask(SIG_SETMASK, [], [pid 5293] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5293] <... futex resumed>) = 0 [pid 5294] memfd_create("syzkaller", 0 [pid 5293] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5294] <... memfd_create resumed>) = 3 [pid 5294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5294] 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"..., 16777216) = 16777216 [pid 5294] munmap(0x7f3be0600000, 138412032) = 0 [pid 5294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5294] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5294] ioctl(4, LOOP_CLR_FD) = 0 [pid 5294] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5294] close(4) = 0 [pid 5294] close(3) = 0 [pid 5294] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5294] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5293] exit_group(0) = ? [pid 5294] <... futex resumed>) = ? [pid 5294] +++ exited with 0 +++ [pid 5293] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- 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 5295 attached , child_tidptr=0x55557b776690) = 5295 [pid 5295] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5295] setpgid(0, 0) = 0 [pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5295] write(3, "1000", 4) = 4 [pid 5295] close(3) = 0 [pid 5295] write(1, "executing program\n", 18executing program ) = 18 [pid 5295] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5295] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5295] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5295] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5295] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5295] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5296 attached [pid 5296] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5295] <... clone3 resumed> => {parent_tid=[5296]}, 88) = 5296 [pid 5296] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5295] rt_sigprocmask(SIG_SETMASK, [], [pid 5296] <... set_robust_list resumed>) = 0 [pid 5295] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5296] rt_sigprocmask(SIG_SETMASK, [], [pid 5295] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5295] <... futex resumed>) = 0 [pid 5296] memfd_create("syzkaller", 0 [pid 5295] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5296] <... memfd_create resumed>) = 3 [pid 5296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5296] 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"..., 16777216) = 16777216 [pid 5296] munmap(0x7f3be0600000, 138412032) = 0 [pid 5296] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5296] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5296] ioctl(4, LOOP_CLR_FD) = 0 [pid 5296] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5296] close(4) = 0 [pid 5296] close(3) = 0 [pid 5296] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] <... futex resumed>) = 0 [pid 5296] <... futex resumed>) = 1 [pid 5295] exit_group(0 [pid 5296] +++ exited with 0 +++ [pid 5295] <... exit_group resumed>) = ? [pid 5295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5295, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- 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 5297 attached , child_tidptr=0x55557b776690) = 5297 [pid 5297] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5297] setpgid(0, 0) = 0 [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5297] write(3, "1000", 4) = 4 [pid 5297] close(3) = 0 [pid 5297] write(1, "executing program\n", 18executing program ) = 18 [pid 5297] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5297] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5297] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5297] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5297] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5298 attached [pid 5298] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5298] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5298] rt_sigprocmask(SIG_SETMASK, [], [pid 5297] <... clone3 resumed> => {parent_tid=[5298]}, 88) = 5298 [pid 5298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5297] rt_sigprocmask(SIG_SETMASK, [], [pid 5298] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5297] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... futex resumed>) = 0 [pid 5298] memfd_create("syzkaller", 0 [pid 5297] <... futex resumed>) = 1 [pid 5297] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5298] <... memfd_create resumed>) = 3 [pid 5298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5298] 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"..., 16777216) = 16777216 [pid 5298] munmap(0x7f3be0600000, 138412032) = 0 [pid 5298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5298] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5298] ioctl(4, LOOP_CLR_FD) = 0 [pid 5298] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5298] close(4) = 0 [pid 5298] close(3) = 0 [pid 5298] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... futex resumed>) = 0 [pid 5298] <... futex resumed>) = 1 [pid 5297] exit_group(0 [pid 5298] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5297] <... exit_group resumed>) = ? [pid 5298] +++ exited with 0 +++ [pid 5297] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5299 attached , child_tidptr=0x55557b776690) = 5299 [pid 5299] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5299] setpgid(0, 0) = 0 [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5299] write(3, "1000", 4) = 4 [pid 5299] close(3) = 0 [pid 5299] write(1, "executing program\n", 18executing program ) = 18 [pid 5299] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5299] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5299] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5299] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5300 attached [pid 5300] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5299] <... clone3 resumed> => {parent_tid=[5300]}, 88) = 5300 [pid 5300] <... rseq resumed>) = 0 [pid 5299] rt_sigprocmask(SIG_SETMASK, [], [pid 5300] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] <... set_robust_list resumed>) = 0 [pid 5299] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] rt_sigprocmask(SIG_SETMASK, [], [pid 5299] <... futex resumed>) = 0 [pid 5300] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] memfd_create("syzkaller", 0 [pid 5299] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5300] <... memfd_create resumed>) = 3 [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5300] 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"..., 16777216) = 16777216 [pid 5300] munmap(0x7f3be0600000, 138412032) = 0 [pid 5300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5300] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5300] ioctl(4, LOOP_CLR_FD) = 0 [pid 5300] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5300] close(4) = 0 [pid 5300] close(3) = 0 [pid 5300] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] <... futex resumed>) = 0 [pid 5299] exit_group(0 [pid 5300] <... futex resumed>) = ? [pid 5299] <... exit_group resumed>) = ? [pid 5300] +++ exited with 0 +++ [pid 5299] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5301 attached , child_tidptr=0x55557b776690) = 5301 [pid 5301] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5301] setpgid(0, 0) = 0 [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5301] write(3, "1000", 4) = 4 [pid 5301] close(3) = 0 [pid 5301] write(1, "executing program\n", 18executing program ) = 18 [pid 5301] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5301] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5301] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5301] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5301] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5302 attached => {parent_tid=[5302]}, 88) = 5302 [pid 5302] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5302] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5301] rt_sigprocmask(SIG_SETMASK, [], [pid 5302] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5301] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... futex resumed>) = 0 [pid 5301] <... futex resumed>) = 1 [pid 5302] memfd_create("syzkaller", 0 [pid 5301] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5302] <... memfd_create resumed>) = 3 [pid 5302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5302] 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"..., 16777216) = 16777216 [pid 5302] munmap(0x7f3be0600000, 138412032) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5302] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5302] ioctl(4, LOOP_CLR_FD) = 0 [pid 5302] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5302] close(4) = 0 [pid 5302] close(3) = 0 [pid 5302] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5302] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] exit_group(0) = ? [pid 5302] <... futex resumed>) = ? [pid 5302] +++ exited with 0 +++ [pid 5301] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- 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=0x55557b776690) = 5303 ./strace-static-x86_64: Process 5303 attached [pid 5303] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5303] setpgid(0, 0) = 0 [pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5303] write(3, "1000", 4) = 4 [pid 5303] close(3) = 0 [pid 5303] write(1, "executing program\n", 18executing program ) = 18 [pid 5303] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5303] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5303] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5303] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5303] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5303] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5304 attached [pid 5304] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5303] <... clone3 resumed> => {parent_tid=[5304]}, 88) = 5304 [pid 5304] <... rseq resumed>) = 0 [pid 5303] rt_sigprocmask(SIG_SETMASK, [], [pid 5304] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5304] <... set_robust_list resumed>) = 0 [pid 5303] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5303] <... futex resumed>) = 0 [pid 5303] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5304] memfd_create("syzkaller", 0) = 3 [pid 5304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5304] 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"..., 16777216) = 16777216 [pid 5304] munmap(0x7f3be0600000, 138412032) = 0 [pid 5304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5304] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5304] ioctl(4, LOOP_CLR_FD) = 0 [pid 5304] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5304] close(4) = 0 [pid 5304] close(3) = 0 [pid 5304] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5303] <... futex resumed>) = 0 [pid 5304] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5303] exit_group(0 [pid 5304] <... futex resumed>) = ? [pid 5303] <... exit_group resumed>) = ? [pid 5304] +++ exited with 0 +++ [pid 5303] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5305 attached , child_tidptr=0x55557b776690) = 5305 [pid 5305] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5305] setpgid(0, 0) = 0 [pid 5305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5305] write(3, "1000", 4) = 4 [pid 5305] close(3) = 0 [pid 5305] write(1, "executing program\n", 18executing program ) = 18 [pid 5305] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5305] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5305] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5305] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5305] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5306 attached [pid 5306] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5305] <... clone3 resumed> => {parent_tid=[5306]}, 88) = 5306 [pid 5306] <... rseq resumed>) = 0 [pid 5306] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5305] rt_sigprocmask(SIG_SETMASK, [], [pid 5306] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5305] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5305] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5305] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5306] <... futex resumed>) = 0 [pid 5306] memfd_create("syzkaller", 0) = 3 [pid 5306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5306] 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"..., 16777216) = 16777216 [pid 5306] munmap(0x7f3be0600000, 138412032) = 0 [pid 5306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5306] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5306] ioctl(4, LOOP_CLR_FD) = 0 [pid 5306] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5306] close(4) = 0 [pid 5306] close(3) = 0 [pid 5306] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5306] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5305] <... futex resumed>) = 0 [pid 5305] exit_group(0 [pid 5306] <... futex resumed>) = ? [pid 5305] <... exit_group resumed>) = ? [pid 5306] +++ exited with 0 +++ [pid 5305] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5307 attached , child_tidptr=0x55557b776690) = 5307 [pid 5307] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5307] setpgid(0, 0) = 0 [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5307] write(3, "1000", 4) = 4 [pid 5307] close(3) = 0 [pid 5307] write(1, "executing program\n", 18executing program ) = 18 [pid 5307] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5307] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5307] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5307] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5307] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5307] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5308 attached => {parent_tid=[5308]}, 88) = 5308 [pid 5307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5308] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5307] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5307] <... futex resumed>) = 0 [pid 5308] <... set_robust_list resumed>) = 0 [pid 5307] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5308] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5308] memfd_create("syzkaller", 0) = 3 [pid 5308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5308] 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"..., 16777216) = 16777216 [pid 5308] munmap(0x7f3be0600000, 138412032) = 0 [pid 5308] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5308] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5308] ioctl(4, LOOP_CLR_FD) = 0 [pid 5308] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5308] close(4) = 0 [pid 5308] close(3) = 0 [pid 5308] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5308] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] <... futex resumed>) = 0 [pid 5307] exit_group(0 [pid 5308] <... futex resumed>) = ? [pid 5307] <... exit_group resumed>) = ? [pid 5308] +++ exited with 0 +++ [pid 5307] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5309 attached , child_tidptr=0x55557b776690) = 5309 [pid 5309] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5309] setpgid(0, 0) = 0 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5309] write(3, "1000", 4) = 4 [pid 5309] close(3) = 0 [pid 5309] write(1, "executing program\n", 18executing program ) = 18 [pid 5309] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5309] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5309] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5309] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5309] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5309] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5310 attached [pid 5310] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5309] <... clone3 resumed> => {parent_tid=[5310]}, 88) = 5310 [pid 5310] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5309] rt_sigprocmask(SIG_SETMASK, [], [pid 5310] rt_sigprocmask(SIG_SETMASK, [], [pid 5309] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5309] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] memfd_create("syzkaller", 0 [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5310] <... memfd_create resumed>) = 3 [pid 5310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5310] 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"..., 16777216) = 16777216 [pid 5310] munmap(0x7f3be0600000, 138412032) = 0 [pid 5310] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5310] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5310] ioctl(4, LOOP_CLR_FD) = 0 [pid 5310] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5310] close(4) = 0 [pid 5310] close(3) = 0 [pid 5310] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5310] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5309] exit_group(0 [pid 5310] <... futex resumed>) = ? [pid 5309] <... exit_group resumed>) = ? [pid 5310] +++ exited with 0 +++ [pid 5309] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5311 attached , child_tidptr=0x55557b776690) = 5311 [pid 5311] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5311] setpgid(0, 0) = 0 [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5311] write(3, "1000", 4) = 4 [pid 5311] close(3) = 0 [pid 5311] write(1, "executing program\n", 18executing program ) = 18 [pid 5311] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5311] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5311] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5311] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5311] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5311] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5312 attached [pid 5312] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5311] <... clone3 resumed> => {parent_tid=[5312]}, 88) = 5312 [pid 5312] <... rseq resumed>) = 0 [pid 5311] rt_sigprocmask(SIG_SETMASK, [], [pid 5312] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5311] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5312] <... set_robust_list resumed>) = 0 [pid 5312] rt_sigprocmask(SIG_SETMASK, [], [pid 5311] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5311] <... futex resumed>) = 0 [pid 5312] memfd_create("syzkaller", 0 [pid 5311] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5312] <... memfd_create resumed>) = 3 [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5312] 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"..., 16777216) = 16777216 [pid 5312] munmap(0x7f3be0600000, 138412032) = 0 [pid 5312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5312] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5312] ioctl(4, LOOP_CLR_FD) = 0 [pid 5312] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5312] close(4) = 0 [pid 5312] close(3) = 0 [pid 5312] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] <... futex resumed>) = 0 [pid 5311] exit_group(0 [pid 5312] <... futex resumed>) = ? [pid 5311] <... exit_group resumed>) = ? [pid 5312] +++ exited with 0 +++ [pid 5311] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5313 attached , child_tidptr=0x55557b776690) = 5313 [pid 5313] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5313] setpgid(0, 0) = 0 [pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5313] write(3, "1000", 4) = 4 [pid 5313] close(3) = 0 [pid 5313] write(1, "executing program\n", 18executing program ) = 18 [pid 5313] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5313] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5313] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5313] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5313] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5313] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5314 attached [pid 5314] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5313] <... clone3 resumed> => {parent_tid=[5314]}, 88) = 5314 [pid 5314] <... rseq resumed>) = 0 [pid 5313] rt_sigprocmask(SIG_SETMASK, [], [pid 5314] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5314] <... set_robust_list resumed>) = 0 [pid 5313] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5313] <... futex resumed>) = 0 [pid 5314] memfd_create("syzkaller", 0 [pid 5313] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5314] <... memfd_create resumed>) = 3 [pid 5314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5314] 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"..., 16777216) = 16777216 [pid 5314] munmap(0x7f3be0600000, 138412032) = 0 [pid 5314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5314] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5314] ioctl(4, LOOP_CLR_FD) = 0 [pid 5314] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5314] close(4) = 0 [pid 5314] close(3) = 0 [pid 5314] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... futex resumed>) = 0 [pid 5313] exit_group(0 [pid 5314] <... futex resumed>) = ? [pid 5313] <... exit_group resumed>) = ? [pid 5314] +++ exited with 0 +++ [pid 5313] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5315 attached , child_tidptr=0x55557b776690) = 5315 [pid 5315] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5315] setpgid(0, 0) = 0 [pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5315] write(3, "1000", 4) = 4 [pid 5315] close(3) = 0 executing program [pid 5315] write(1, "executing program\n", 18) = 18 [pid 5315] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5315] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5315] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5315] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5315] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5315] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5315] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5316 attached => {parent_tid=[5316]}, 88) = 5316 [pid 5315] rt_sigprocmask(SIG_SETMASK, [], [pid 5316] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5316] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5315] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] <... set_robust_list resumed>) = 0 [pid 5315] <... futex resumed>) = 0 [pid 5316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5315] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5316] memfd_create("syzkaller", 0) = 3 [pid 5316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5316] 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"..., 16777216) = 16777216 [pid 5316] munmap(0x7f3be0600000, 138412032) = 0 [pid 5316] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5316] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5316] ioctl(4, LOOP_CLR_FD) = 0 [pid 5316] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5316] close(4) = 0 [pid 5316] close(3) = 0 [pid 5316] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5316] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5315] <... futex resumed>) = 0 [pid 5315] exit_group(0) = ? [pid 5316] <... futex resumed>) = ? [pid 5316] +++ exited with 0 +++ [pid 5315] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5317 attached , child_tidptr=0x55557b776690) = 5317 [pid 5317] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5317] setpgid(0, 0) = 0 [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5317] write(3, "1000", 4) = 4 [pid 5317] close(3) = 0 executing program [pid 5317] write(1, "executing program\n", 18) = 18 [pid 5317] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5317] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5317] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5317] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5317] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5317] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5318 attached [pid 5318] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5317] <... clone3 resumed> => {parent_tid=[5318]}, 88) = 5318 [pid 5318] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5317] rt_sigprocmask(SIG_SETMASK, [], [pid 5318] <... set_robust_list resumed>) = 0 [pid 5317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5318] rt_sigprocmask(SIG_SETMASK, [], [pid 5317] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5318] memfd_create("syzkaller", 0 [pid 5317] <... futex resumed>) = 0 [pid 5317] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5318] <... memfd_create resumed>) = 3 [pid 5318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5318] 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"..., 16777216) = 16777216 [pid 5318] munmap(0x7f3be0600000, 138412032) = 0 [pid 5318] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5318] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5318] ioctl(4, LOOP_CLR_FD) = 0 [pid 5318] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5318] close(4) = 0 [pid 5318] close(3) = 0 [pid 5318] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... futex resumed>) = 0 [pid 5318] <... futex resumed>) = 1 [pid 5317] exit_group(0 [pid 5318] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5317] <... exit_group resumed>) = ? [pid 5318] +++ exited with 0 +++ [pid 5317] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5319 attached , child_tidptr=0x55557b776690) = 5319 [pid 5319] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5319] setpgid(0, 0) = 0 [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5319] write(3, "1000", 4) = 4 [pid 5319] close(3) = 0 executing program [pid 5319] write(1, "executing program\n", 18) = 18 [pid 5319] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5319] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5319] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5319] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5319] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5319] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5320 attached [pid 5320] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5319] <... clone3 resumed> => {parent_tid=[5320]}, 88) = 5320 [pid 5320] <... rseq resumed>) = 0 [pid 5319] rt_sigprocmask(SIG_SETMASK, [], [pid 5320] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5320] <... set_robust_list resumed>) = 0 [pid 5319] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5319] <... futex resumed>) = 0 [pid 5320] memfd_create("syzkaller", 0 [pid 5319] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5320] <... memfd_create resumed>) = 3 [pid 5320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5320] 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"..., 16777216) = 16777216 [pid 5320] munmap(0x7f3be0600000, 138412032) = 0 [pid 5320] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5320] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5320] ioctl(4, LOOP_CLR_FD) = 0 [pid 5320] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5320] close(4) = 0 [pid 5320] close(3) = 0 [pid 5320] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5319] <... futex resumed>) = 0 [pid 5320] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5319] exit_group(0) = ? [pid 5320] <... futex resumed>) = ? [pid 5320] +++ exited with 0 +++ [pid 5319] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- 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 5321 attached , child_tidptr=0x55557b776690) = 5321 [pid 5321] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5321] setpgid(0, 0) = 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5321] write(3, "1000", 4) = 4 [pid 5321] close(3) = 0 [pid 5321] write(1, "executing program\n", 18executing program ) = 18 [pid 5321] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5321] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5321] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5321] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5321] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5322 attached [pid 5322] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5322] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5321] <... clone3 resumed> => {parent_tid=[5322]}, 88) = 5322 [pid 5322] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5321] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... futex resumed>) = 0 [pid 5321] <... futex resumed>) = 1 [pid 5322] memfd_create("syzkaller", 0 [pid 5321] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5322] <... memfd_create resumed>) = 3 [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5322] 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"..., 16777216) = 16777216 [pid 5322] munmap(0x7f3be0600000, 138412032) = 0 [pid 5322] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5322] ioctl(4, LOOP_CLR_FD) = 0 [pid 5322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5322] close(4) = 0 [pid 5322] close(3) = 0 [pid 5322] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5322] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] <... futex resumed>) = 0 [pid 5321] exit_group(0 [pid 5322] <... futex resumed>) = ? [pid 5321] <... exit_group resumed>) = ? [pid 5322] +++ exited with 0 +++ [pid 5321] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5323 attached , child_tidptr=0x55557b776690) = 5323 [pid 5323] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5323] setpgid(0, 0) = 0 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5323] write(3, "1000", 4) = 4 [pid 5323] close(3) = 0 executing program [pid 5323] write(1, "executing program\n", 18) = 18 [pid 5323] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5323] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5323] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5323] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5323] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5324 attached => {parent_tid=[5324]}, 88) = 5324 [pid 5323] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5324] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5323] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5323] <... futex resumed>) = 0 [pid 5324] <... set_robust_list resumed>) = 0 [pid 5323] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5324] memfd_create("syzkaller", 0) = 3 [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5324] 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"..., 16777216) = 16777216 [pid 5324] munmap(0x7f3be0600000, 138412032) = 0 [pid 5324] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5324] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5324] ioctl(4, LOOP_CLR_FD) = 0 [pid 5324] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5324] close(4) = 0 [pid 5324] close(3) = 0 [pid 5324] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5323] <... futex resumed>) = 0 [pid 5324] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5323] exit_group(0 [pid 5324] <... futex resumed>) = ? [pid 5324] +++ exited with 0 +++ [pid 5323] <... exit_group resumed>) = ? [pid 5323] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5325 attached , child_tidptr=0x55557b776690) = 5325 [pid 5325] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5325] setpgid(0, 0) = 0 [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5325] write(3, "1000", 4) = 4 [pid 5325] close(3) = 0 [pid 5325] write(1, "executing program\n", 18executing program ) = 18 [pid 5325] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5325] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5325] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5325] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5325] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5325] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5326 attached [pid 5326] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5325] <... clone3 resumed> => {parent_tid=[5326]}, 88) = 5326 [pid 5326] <... rseq resumed>) = 0 [pid 5325] rt_sigprocmask(SIG_SETMASK, [], [pid 5326] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5325] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5326] <... set_robust_list resumed>) = 0 [pid 5325] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] rt_sigprocmask(SIG_SETMASK, [], [pid 5325] <... futex resumed>) = 0 [pid 5326] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5325] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5326] memfd_create("syzkaller", 0) = 3 [pid 5326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5326] 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"..., 16777216) = 16777216 [pid 5326] munmap(0x7f3be0600000, 138412032) = 0 [pid 5326] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5326] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5326] ioctl(4, LOOP_CLR_FD) = 0 [pid 5326] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5326] close(4) = 0 [pid 5326] close(3) = 0 [pid 5326] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5325] <... futex resumed>) = 0 [pid 5326] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5325] exit_group(0 [pid 5326] <... futex resumed>) = ? [pid 5325] <... exit_group resumed>) = ? [pid 5326] +++ exited with 0 +++ [pid 5325] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5325, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5327 attached , child_tidptr=0x55557b776690) = 5327 [pid 5327] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5327] setpgid(0, 0) = 0 [pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5327] write(3, "1000", 4) = 4 [pid 5327] close(3) = 0 [pid 5327] write(1, "executing program\n", 18executing program ) = 18 [pid 5327] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5327] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5327] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5327] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5327] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5327] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5327] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5328 attached [pid 5328] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5327] <... clone3 resumed> => {parent_tid=[5328]}, 88) = 5328 [pid 5328] <... rseq resumed>) = 0 [pid 5327] rt_sigprocmask(SIG_SETMASK, [], [pid 5328] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5327] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5328] <... set_robust_list resumed>) = 0 [pid 5327] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5328] rt_sigprocmask(SIG_SETMASK, [], [pid 5327] <... futex resumed>) = 0 [pid 5328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5328] memfd_create("syzkaller", 0 [pid 5327] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5328] <... memfd_create resumed>) = 3 [pid 5328] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5328] 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"..., 16777216) = 16777216 [pid 5328] munmap(0x7f3be0600000, 138412032) = 0 [pid 5328] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5328] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5328] ioctl(4, LOOP_CLR_FD) = 0 [pid 5328] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5328] close(4) = 0 [pid 5328] close(3) = 0 [pid 5328] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5327] <... futex resumed>) = 0 [pid 5328] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5327] exit_group(0 [pid 5328] <... futex resumed>) = ? [pid 5327] <... exit_group resumed>) = ? [pid 5328] +++ exited with 0 +++ [pid 5327] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5327, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5329 attached , child_tidptr=0x55557b776690) = 5329 [pid 5329] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5329] setpgid(0, 0) = 0 [pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5329] write(3, "1000", 4) = 4 [pid 5329] close(3) = 0 [pid 5329] write(1, "executing program\n", 18executing program ) = 18 [pid 5329] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5329] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5329] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5329] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5329] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5329] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5329] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5330 attached [pid 5330] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5329] <... clone3 resumed> => {parent_tid=[5330]}, 88) = 5330 [pid 5330] <... rseq resumed>) = 0 [pid 5329] rt_sigprocmask(SIG_SETMASK, [], [pid 5330] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5329] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5330] <... set_robust_list resumed>) = 0 [pid 5330] rt_sigprocmask(SIG_SETMASK, [], [pid 5329] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5329] <... futex resumed>) = 0 [pid 5330] memfd_create("syzkaller", 0 [pid 5329] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5330] <... memfd_create resumed>) = 3 [pid 5330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5330] 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"..., 16777216) = 16777216 [pid 5330] munmap(0x7f3be0600000, 138412032) = 0 [pid 5330] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5330] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5330] ioctl(4, LOOP_CLR_FD) = 0 [pid 5330] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5330] close(4) = 0 [pid 5330] close(3) = 0 [pid 5330] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5330] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5329] <... futex resumed>) = 0 [pid 5329] exit_group(0) = ? [pid 5330] <... futex resumed>) = ? [pid 5330] +++ exited with 0 +++ [pid 5329] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5329, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5331 attached , child_tidptr=0x55557b776690) = 5331 [pid 5331] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5331] setpgid(0, 0) = 0 [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5331] write(3, "1000", 4) = 4 [pid 5331] close(3) = 0 executing program [pid 5331] write(1, "executing program\n", 18) = 18 [pid 5331] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5331] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5331] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5331] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5331] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5331] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5332 attached [pid 5332] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5331] <... clone3 resumed> => {parent_tid=[5332]}, 88) = 5332 [pid 5332] <... rseq resumed>) = 0 [pid 5331] rt_sigprocmask(SIG_SETMASK, [], [pid 5332] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5332] <... set_robust_list resumed>) = 0 [pid 5331] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5331] <... futex resumed>) = 0 [pid 5332] memfd_create("syzkaller", 0 [pid 5331] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5332] <... memfd_create resumed>) = 3 [pid 5332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5332] 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"..., 16777216) = 16777216 [pid 5332] munmap(0x7f3be0600000, 138412032) = 0 [pid 5332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5332] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5332] ioctl(4, LOOP_CLR_FD) = 0 [pid 5332] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5332] close(4) = 0 [pid 5332] close(3) = 0 [pid 5332] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] <... futex resumed>) = 0 [pid 5332] <... futex resumed>) = 1 [pid 5331] exit_group(0 [pid 5332] +++ exited with 0 +++ [pid 5331] <... exit_group resumed>) = ? [pid 5331] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5333 attached , child_tidptr=0x55557b776690) = 5333 [pid 5333] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5333] setpgid(0, 0) = 0 [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5333] write(3, "1000", 4) = 4 [pid 5333] close(3) = 0 [pid 5333] write(1, "executing program\n", 18executing program ) = 18 [pid 5333] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5333] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5333] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5333] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5333] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5333] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5334 attached [pid 5334] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5333] <... clone3 resumed> => {parent_tid=[5334]}, 88) = 5334 [pid 5334] <... rseq resumed>) = 0 [pid 5333] rt_sigprocmask(SIG_SETMASK, [], [pid 5334] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5334] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5333] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] <... futex resumed>) = 0 [pid 5333] <... futex resumed>) = 1 [pid 5333] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5334] memfd_create("syzkaller", 0) = 3 [pid 5334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5334] 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"..., 16777216) = 16777216 [pid 5334] munmap(0x7f3be0600000, 138412032) = 0 [pid 5334] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5334] ioctl(4, LOOP_CLR_FD) = 0 [pid 5334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5334] close(4) = 0 [pid 5334] close(3) = 0 [pid 5334] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5333] <... futex resumed>) = 0 [pid 5334] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5333] exit_group(0) = ? [pid 5334] <... futex resumed>) = ? [pid 5334] +++ exited with 0 +++ [pid 5333] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5335 attached , child_tidptr=0x55557b776690) = 5335 [pid 5335] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5335] setpgid(0, 0) = 0 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5335] write(3, "1000", 4) = 4 [pid 5335] close(3) = 0 executing program [pid 5335] write(1, "executing program\n", 18) = 18 [pid 5335] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5335] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5335] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5335] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5335] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5335] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5336 attached => {parent_tid=[5336]}, 88) = 5336 [pid 5335] rt_sigprocmask(SIG_SETMASK, [], [pid 5336] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5336] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5335] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] <... futex resumed>) = 0 [pid 5336] rt_sigprocmask(SIG_SETMASK, [], [pid 5335] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5336] memfd_create("syzkaller", 0) = 3 [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5336] 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"..., 16777216) = 16777216 [pid 5336] munmap(0x7f3be0600000, 138412032) = 0 [pid 5336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5336] ioctl(4, LOOP_CLR_FD) = 0 [pid 5336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5336] close(4) = 0 [pid 5336] close(3) = 0 [pid 5336] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5336] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] exit_group(0) = ? [pid 5336] <... futex resumed>) = ? [pid 5336] +++ exited with 0 +++ [pid 5335] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5337 attached , child_tidptr=0x55557b776690) = 5337 [pid 5337] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5337] setpgid(0, 0) = 0 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5337] write(3, "1000", 4) = 4 [pid 5337] close(3) = 0 [pid 5337] write(1, "executing program\n", 18executing program ) = 18 [pid 5337] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5337] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5337] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5337] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5337] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5338 attached [pid 5338] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5337] <... clone3 resumed> => {parent_tid=[5338]}, 88) = 5338 [pid 5338] <... rseq resumed>) = 0 [pid 5337] rt_sigprocmask(SIG_SETMASK, [], [pid 5338] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5338] <... set_robust_list resumed>) = 0 [pid 5337] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5337] <... futex resumed>) = 0 [pid 5338] memfd_create("syzkaller", 0 [pid 5337] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5338] <... memfd_create resumed>) = 3 [pid 5338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5338] 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"..., 16777216) = 16777216 [pid 5338] munmap(0x7f3be0600000, 138412032) = 0 [pid 5338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5338] ioctl(4, LOOP_CLR_FD) = 0 [pid 5338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5338] close(4) = 0 [pid 5338] close(3) = 0 [pid 5338] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... futex resumed>) = 0 [pid 5337] exit_group(0 [pid 5338] <... futex resumed>) = ? [pid 5337] <... exit_group resumed>) = ? [pid 5338] +++ exited with 0 +++ [pid 5337] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5339 attached , child_tidptr=0x55557b776690) = 5339 [pid 5339] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5339] setpgid(0, 0) = 0 [pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5339] write(3, "1000", 4) = 4 [pid 5339] close(3) = 0 executing program [pid 5339] write(1, "executing program\n", 18) = 18 [pid 5339] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5339] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5339] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5339] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5339] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5339] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5340 attached => {parent_tid=[5340]}, 88) = 5340 [pid 5339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5339] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5340] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5339] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5340] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5340] memfd_create("syzkaller", 0) = 3 [pid 5340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5340] 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"..., 16777216) = 16777216 [pid 5340] munmap(0x7f3be0600000, 138412032) = 0 [pid 5340] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5340] ioctl(4, LOOP_CLR_FD) = 0 [pid 5340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5340] close(4) = 0 [pid 5340] close(3) = 0 [pid 5340] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5339] <... futex resumed>) = 0 [pid 5340] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5339] exit_group(0) = ? [pid 5340] <... futex resumed>) = ? [pid 5340] +++ exited with 0 +++ [pid 5339] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5339, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5341 attached , child_tidptr=0x55557b776690) = 5341 [pid 5341] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5341] setpgid(0, 0) = 0 [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5341] write(3, "1000", 4) = 4 [pid 5341] close(3) = 0 [pid 5341] write(1, "executing program\n", 18executing program ) = 18 [pid 5341] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5341] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5341] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5341] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5341] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5341] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5342 attached [pid 5342] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5341] <... clone3 resumed> => {parent_tid=[5342]}, 88) = 5342 [pid 5342] <... rseq resumed>) = 0 [pid 5341] rt_sigprocmask(SIG_SETMASK, [], [pid 5342] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5342] <... set_robust_list resumed>) = 0 [pid 5341] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5341] <... futex resumed>) = 0 [pid 5342] memfd_create("syzkaller", 0 [pid 5341] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5342] <... memfd_create resumed>) = 3 [pid 5342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5342] 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"..., 16777216) = 16777216 [pid 5342] munmap(0x7f3be0600000, 138412032) = 0 [pid 5342] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5342] ioctl(4, LOOP_CLR_FD) = 0 [pid 5342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5342] close(4) = 0 [pid 5342] close(3) = 0 [pid 5342] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] <... futex resumed>) = 0 [pid 5341] exit_group(0 [pid 5342] <... futex resumed>) = ? [pid 5341] <... exit_group resumed>) = ? [pid 5342] +++ exited with 0 +++ [pid 5341] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5343 attached , child_tidptr=0x55557b776690) = 5343 [pid 5343] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5343] setpgid(0, 0) = 0 [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5343] write(3, "1000", 4) = 4 [pid 5343] close(3) = 0 [pid 5343] write(1, "executing program\n", 18executing program ) = 18 [pid 5343] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5343] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5343] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5343] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5343] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5343] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5344 attached [pid 5344] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5343] <... clone3 resumed> => {parent_tid=[5344]}, 88) = 5344 [pid 5344] <... rseq resumed>) = 0 [pid 5343] rt_sigprocmask(SIG_SETMASK, [], [pid 5344] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5343] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5344] <... set_robust_list resumed>) = 0 [pid 5343] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5343] <... futex resumed>) = 0 [pid 5343] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5344] memfd_create("syzkaller", 0) = 3 [pid 5344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5344] 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"..., 16777216) = 16777216 [pid 5344] munmap(0x7f3be0600000, 138412032) = 0 [pid 5344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5344] ioctl(4, LOOP_CLR_FD) = 0 [pid 5344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5344] close(4) = 0 [pid 5344] close(3) = 0 [pid 5344] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5344] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5343] <... futex resumed>) = 0 [pid 5343] exit_group(0) = ? [pid 5344] <... futex resumed>) = ? [pid 5344] +++ exited with 0 +++ [pid 5343] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5345 attached , child_tidptr=0x55557b776690) = 5345 [pid 5345] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5345] setpgid(0, 0) = 0 [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5345] write(3, "1000", 4) = 4 [pid 5345] close(3) = 0 [pid 5345] write(1, "executing program\n", 18executing program ) = 18 [pid 5345] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5345] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5345] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5345] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5345] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5346 attached [pid 5346] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5345] <... clone3 resumed> => {parent_tid=[5346]}, 88) = 5346 [pid 5346] <... rseq resumed>) = 0 [pid 5345] rt_sigprocmask(SIG_SETMASK, [], [pid 5346] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5346] <... set_robust_list resumed>) = 0 [pid 5345] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5346] memfd_create("syzkaller", 0 [pid 5345] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5346] <... memfd_create resumed>) = 3 [pid 5346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5346] 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"..., 16777216) = 16777216 [pid 5346] munmap(0x7f3be0600000, 138412032) = 0 [pid 5346] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5346] ioctl(4, LOOP_CLR_FD) = 0 [pid 5346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5346] close(4) = 0 [pid 5346] close(3) = 0 [pid 5346] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5345] <... futex resumed>) = 0 [pid 5345] exit_group(0 [pid 5346] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5346] +++ exited with 0 +++ [pid 5345] <... exit_group resumed>) = ? [pid 5345] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 5347 attached , child_tidptr=0x55557b776690) = 5347 [pid 5347] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5347] setpgid(0, 0) = 0 [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5347] write(3, "1000", 4) = 4 [pid 5347] close(3) = 0 executing program [pid 5347] write(1, "executing program\n", 18) = 18 [pid 5347] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5347] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5347] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5347] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5347] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5347] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5348 attached [pid 5348] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5347] <... clone3 resumed> => {parent_tid=[5348]}, 88) = 5348 [pid 5348] <... rseq resumed>) = 0 [pid 5347] rt_sigprocmask(SIG_SETMASK, [], [pid 5348] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5347] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5348] <... set_robust_list resumed>) = 0 [pid 5347] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5347] <... futex resumed>) = 0 [pid 5347] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5348] memfd_create("syzkaller", 0) = 3 [pid 5348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5348] 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"..., 16777216) = 16777216 [pid 5348] munmap(0x7f3be0600000, 138412032) = 0 [pid 5348] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5348] ioctl(4, LOOP_CLR_FD) = 0 [pid 5348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5348] close(4) = 0 [pid 5348] close(3) = 0 [pid 5348] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5347] <... futex resumed>) = 0 [pid 5348] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5347] exit_group(0) = ? [pid 5348] <... futex resumed>) = ? [pid 5348] +++ exited with 0 +++ [pid 5347] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5349 attached , child_tidptr=0x55557b776690) = 5349 [pid 5349] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5349] setpgid(0, 0) = 0 [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5349] write(3, "1000", 4) = 4 [pid 5349] close(3) = 0 [pid 5349] write(1, "executing program\n", 18executing program ) = 18 [pid 5349] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5349] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5349] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5349] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5349] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5350 attached => {parent_tid=[5350]}, 88) = 5350 [pid 5350] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5349] rt_sigprocmask(SIG_SETMASK, [], [pid 5350] <... rseq resumed>) = 0 [pid 5350] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5350] <... set_robust_list resumed>) = 0 [pid 5350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5350] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5349] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5349] <... futex resumed>) = 0 [pid 5349] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5350] memfd_create("syzkaller", 0) = 3 [pid 5350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5350] 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"..., 16777216) = 16777216 [pid 5350] munmap(0x7f3be0600000, 138412032) = 0 [pid 5350] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5350] ioctl(4, LOOP_CLR_FD) = 0 [pid 5350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5350] close(4) = 0 [pid 5350] close(3) = 0 [pid 5350] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5349] <... futex resumed>) = 0 [pid 5350] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5349] exit_group(0) = ? [pid 5350] <... futex resumed>) = ? [pid 5350] +++ exited with 0 +++ [pid 5349] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5351 attached , child_tidptr=0x55557b776690) = 5351 [pid 5351] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5351] setpgid(0, 0) = 0 [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5351] write(3, "1000", 4) = 4 [pid 5351] close(3executing program ) = 0 [pid 5351] write(1, "executing program\n", 18) = 18 [pid 5351] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5351] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5351] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5351] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5351] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5351] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5352 attached [pid 5352] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5351] <... clone3 resumed> => {parent_tid=[5352]}, 88) = 5352 [pid 5352] <... rseq resumed>) = 0 [pid 5351] rt_sigprocmask(SIG_SETMASK, [], [pid 5352] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5351] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5352] <... set_robust_list resumed>) = 0 [pid 5351] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5351] <... futex resumed>) = 0 [pid 5352] memfd_create("syzkaller", 0 [pid 5351] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5352] <... memfd_create resumed>) = 3 [pid 5352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5352] 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"..., 16777216) = 16777216 [pid 5352] munmap(0x7f3be0600000, 138412032) = 0 [pid 5352] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5352] ioctl(4, LOOP_CLR_FD) = 0 [pid 5352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5352] close(4) = 0 [pid 5352] close(3) = 0 [pid 5352] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5351] <... futex resumed>) = 0 [pid 5352] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5351] exit_group(0) = ? [pid 5352] <... futex resumed>) = ? [pid 5352] +++ exited with 0 +++ [pid 5351] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5353 attached , child_tidptr=0x55557b776690) = 5353 [pid 5353] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5353] setpgid(0, 0) = 0 [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5353] write(3, "1000", 4) = 4 [pid 5353] close(3) = 0 executing program [pid 5353] write(1, "executing program\n", 18) = 18 [pid 5353] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5353] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5353] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5353] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5353] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5354 attached [pid 5354] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5353] <... clone3 resumed> => {parent_tid=[5354]}, 88) = 5354 [pid 5354] <... rseq resumed>) = 0 [pid 5353] rt_sigprocmask(SIG_SETMASK, [], [pid 5354] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5354] <... set_robust_list resumed>) = 0 [pid 5353] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5353] <... futex resumed>) = 0 [pid 5354] memfd_create("syzkaller", 0 [pid 5353] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5354] <... memfd_create resumed>) = 3 [pid 5354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5354] 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"..., 16777216) = 16777216 [pid 5354] munmap(0x7f3be0600000, 138412032) = 0 [pid 5354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5354] ioctl(4, LOOP_CLR_FD) = 0 [pid 5354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5354] close(4) = 0 [pid 5354] close(3) = 0 [pid 5354] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5354] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] exit_group(0 [pid 5354] <... futex resumed>) = ? [pid 5353] <... exit_group resumed>) = ? [pid 5354] +++ exited with 0 +++ [pid 5353] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5355 attached , child_tidptr=0x55557b776690) = 5355 [pid 5355] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5355] setpgid(0, 0) = 0 [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5355] write(3, "1000", 4) = 4 [pid 5355] close(3) = 0 [pid 5355] write(1, "executing program\n", 18executing program ) = 18 [pid 5355] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5355] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5355] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5355] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5355] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5355] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5356 attached => {parent_tid=[5356]}, 88) = 5356 [pid 5355] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5355] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5355] <... futex resumed>) = 0 [pid 5356] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5355] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5356] <... set_robust_list resumed>) = 0 [pid 5356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5356] memfd_create("syzkaller", 0) = 3 [pid 5356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5356] 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"..., 16777216) = 16777216 [pid 5356] munmap(0x7f3be0600000, 138412032) = 0 [pid 5356] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5356] ioctl(4, LOOP_CLR_FD) = 0 [pid 5356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5356] close(4) = 0 [pid 5356] close(3) = 0 [pid 5356] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5355] <... futex resumed>) = 0 [pid 5356] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5355] exit_group(0) = ? [pid 5356] <... futex resumed>) = ? [pid 5356] +++ exited with 0 +++ [pid 5355] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5357 attached , child_tidptr=0x55557b776690) = 5357 [pid 5357] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5357] setpgid(0, 0) = 0 [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5357] write(3, "1000", 4) = 4 [pid 5357] close(3) = 0 [pid 5357] write(1, "executing program\n", 18executing program ) = 18 [pid 5357] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5357] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5357] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5357] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5357] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5357] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5358 attached [pid 5358] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5357] <... clone3 resumed> => {parent_tid=[5358]}, 88) = 5358 [pid 5358] <... rseq resumed>) = 0 [pid 5357] rt_sigprocmask(SIG_SETMASK, [], [pid 5358] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5358] <... set_robust_list resumed>) = 0 [pid 5357] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5357] <... futex resumed>) = 0 [pid 5357] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5358] memfd_create("syzkaller", 0) = 3 [pid 5358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5358] 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"..., 16777216) = 16777216 [pid 5358] munmap(0x7f3be0600000, 138412032) = 0 [pid 5358] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5358] ioctl(4, LOOP_CLR_FD) = 0 [pid 5358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5358] close(4) = 0 [pid 5358] close(3) = 0 [pid 5358] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5358] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5357] <... futex resumed>) = 0 [pid 5357] exit_group(0 [pid 5358] <... futex resumed>) = ? [pid 5358] +++ exited with 0 +++ [pid 5357] <... exit_group resumed>) = ? [pid 5357] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5359 attached , child_tidptr=0x55557b776690) = 5359 [pid 5359] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5359] setpgid(0, 0) = 0 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5359] write(3, "1000", 4) = 4 [pid 5359] close(3) = 0 [pid 5359] write(1, "executing program\n", 18executing program ) = 18 [pid 5359] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5359] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5359] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5359] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5359] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5360 attached [pid 5360] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5359] <... clone3 resumed> => {parent_tid=[5360]}, 88) = 5360 [pid 5360] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5359] rt_sigprocmask(SIG_SETMASK, [], [pid 5360] <... set_robust_list resumed>) = 0 [pid 5360] rt_sigprocmask(SIG_SETMASK, [], [pid 5359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5359] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5360] memfd_create("syzkaller", 0) = 3 [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5360] 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"..., 16777216) = 16777216 [pid 5360] munmap(0x7f3be0600000, 138412032) = 0 [pid 5360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5360] ioctl(4, LOOP_CLR_FD) = 0 [pid 5360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5360] close(4) = 0 [pid 5360] close(3) = 0 [pid 5360] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] <... futex resumed>) = 0 [pid 5360] <... futex resumed>) = 1 [pid 5359] exit_group(0 [pid 5360] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5359] <... exit_group resumed>) = ? [pid 5360] +++ exited with 0 +++ [pid 5359] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5361 attached , child_tidptr=0x55557b776690) = 5361 [pid 5361] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5361] setpgid(0, 0) = 0 [pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5361] write(3, "1000", 4) = 4 [pid 5361] close(3) = 0 [pid 5361] write(1, "executing program\n", 18executing program ) = 18 [pid 5361] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5361] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5361] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5361] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5361] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5361] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5362 attached [pid 5362] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5361] <... clone3 resumed> => {parent_tid=[5362]}, 88) = 5362 [pid 5362] <... rseq resumed>) = 0 [pid 5361] rt_sigprocmask(SIG_SETMASK, [], [pid 5362] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5361] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5361] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5361] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5362] <... set_robust_list resumed>) = 0 [pid 5362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5362] memfd_create("syzkaller", 0) = 3 [pid 5362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5362] 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"..., 16777216) = 16777216 [pid 5362] munmap(0x7f3be0600000, 138412032) = 0 [pid 5362] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5362] ioctl(4, LOOP_CLR_FD) = 0 [pid 5362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5362] close(4) = 0 [pid 5362] close(3) = 0 [pid 5362] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5362] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5361] <... futex resumed>) = 0 [pid 5361] exit_group(0 [pid 5362] <... futex resumed>) = ? [pid 5361] <... exit_group resumed>) = ? [pid 5362] +++ exited with 0 +++ [pid 5361] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5361, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5363 attached , child_tidptr=0x55557b776690) = 5363 [pid 5363] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5363] setpgid(0, 0) = 0 [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5363] write(3, "1000", 4) = 4 [pid 5363] close(3) = 0 [pid 5363] write(1, "executing program\n", 18executing program ) = 18 [pid 5363] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5363] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5363] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5363] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5363] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5363] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5364 attached [pid 5364] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5363] <... clone3 resumed> => {parent_tid=[5364]}, 88) = 5364 [pid 5364] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5363] rt_sigprocmask(SIG_SETMASK, [], [pid 5364] <... set_robust_list resumed>) = 0 [pid 5363] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5364] rt_sigprocmask(SIG_SETMASK, [], [pid 5363] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5363] <... futex resumed>) = 0 [pid 5364] memfd_create("syzkaller", 0) = 3 [pid 5363] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5364] 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"..., 16777216) = 16777216 [pid 5364] munmap(0x7f3be0600000, 138412032) = 0 [pid 5364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5364] ioctl(4, LOOP_CLR_FD) = 0 [pid 5364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5364] close(4) = 0 [pid 5364] close(3) = 0 [pid 5364] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5363] <... futex resumed>) = 0 [pid 5364] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5363] exit_group(0) = ? [pid 5364] <... futex resumed>) = ? [pid 5364] +++ exited with 0 +++ [pid 5363] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5365 attached , child_tidptr=0x55557b776690) = 5365 [pid 5365] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5365] setpgid(0, 0) = 0 [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5365] write(3, "1000", 4) = 4 [pid 5365] close(3) = 0 [pid 5365] write(1, "executing program\n", 18executing program ) = 18 [pid 5365] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5365] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5365] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5365] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5365] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[5366]}, 88) = 5366 ./strace-static-x86_64: Process 5366 attached [pid 5365] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5365] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5366] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5366] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5366] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5366] memfd_create("syzkaller", 0) = 3 [pid 5366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5366] 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"..., 16777216) = 16777216 [pid 5366] munmap(0x7f3be0600000, 138412032) = 0 [pid 5366] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5366] ioctl(4, LOOP_CLR_FD) = 0 [pid 5366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5366] close(4) = 0 [pid 5366] close(3) = 0 [pid 5366] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5366] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] exit_group(0 [pid 5366] <... futex resumed>) = ? [pid 5366] +++ exited with 0 +++ [pid 5365] <... exit_group resumed>) = ? [pid 5365] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5367 attached , child_tidptr=0x55557b776690) = 5367 [pid 5367] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5367] setpgid(0, 0) = 0 [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5367] write(3, "1000", 4) = 4 [pid 5367] close(3) = 0 [pid 5367] write(1, "executing program\n", 18executing program ) = 18 [pid 5367] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5367] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5367] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5367] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5367] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5367] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5368 attached [pid 5368] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5367] <... clone3 resumed> => {parent_tid=[5368]}, 88) = 5368 [pid 5368] <... rseq resumed>) = 0 [pid 5367] rt_sigprocmask(SIG_SETMASK, [], [pid 5368] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5367] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5368] <... set_robust_list resumed>) = 0 [pid 5367] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] rt_sigprocmask(SIG_SETMASK, [], [pid 5367] <... futex resumed>) = 0 [pid 5368] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5367] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5368] memfd_create("syzkaller", 0) = 3 [pid 5368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5368] 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"..., 16777216) = 16777216 [pid 5368] munmap(0x7f3be0600000, 138412032) = 0 [pid 5368] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5368] ioctl(4, LOOP_CLR_FD) = 0 [pid 5368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5368] close(4) = 0 [pid 5368] close(3) = 0 [pid 5368] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5367] <... futex resumed>) = 0 [pid 5368] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5367] exit_group(0) = ? [pid 5368] <... futex resumed>) = ? [pid 5368] +++ exited with 0 +++ [pid 5367] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=19 /* 0.19 s */} --- 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 5369 attached , child_tidptr=0x55557b776690) = 5369 [pid 5369] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5369] setpgid(0, 0) = 0 [pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5369] write(3, "1000", 4) = 4 [pid 5369] close(3) = 0 executing program [pid 5369] write(1, "executing program\n", 18) = 18 [pid 5369] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5369] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5369] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5369] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5369] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5369] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5369] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5370 attached [pid 5370] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5370] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5370] rt_sigprocmask(SIG_SETMASK, [], [pid 5369] <... clone3 resumed> => {parent_tid=[5370]}, 88) = 5370 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5369] rt_sigprocmask(SIG_SETMASK, [], [pid 5370] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5369] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5369] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] <... futex resumed>) = 0 [pid 5369] <... futex resumed>) = 1 [pid 5370] memfd_create("syzkaller", 0 [pid 5369] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5370] <... memfd_create resumed>) = 3 [pid 5370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5370] 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"..., 16777216) = 16777216 [pid 5370] munmap(0x7f3be0600000, 138412032) = 0 [pid 5370] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5370] ioctl(4, LOOP_CLR_FD) = 0 [pid 5370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5370] close(4) = 0 [pid 5370] close(3) = 0 [pid 5370] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5369] <... futex resumed>) = 0 [pid 5370] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5369] exit_group(0 [pid 5370] <... futex resumed>) = ? [pid 5369] <... exit_group resumed>) = ? [pid 5370] +++ exited with 0 +++ [pid 5369] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5369, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5371 attached , child_tidptr=0x55557b776690) = 5371 [pid 5371] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5371] setpgid(0, 0) = 0 [pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5371] write(3, "1000", 4) = 4 [pid 5371] close(3) = 0 [pid 5371] write(1, "executing program\n", 18executing program ) = 18 [pid 5371] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5371] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5371] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5371] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5371] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5371] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5372 attached [pid 5372] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5371] <... clone3 resumed> => {parent_tid=[5372]}, 88) = 5372 [pid 5372] <... rseq resumed>) = 0 [pid 5371] rt_sigprocmask(SIG_SETMASK, [], [pid 5372] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5372] <... set_robust_list resumed>) = 0 [pid 5371] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5371] <... futex resumed>) = 0 [pid 5372] memfd_create("syzkaller", 0 [pid 5371] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5372] <... memfd_create resumed>) = 3 [pid 5372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5372] 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"..., 16777216) = 16777216 [pid 5372] munmap(0x7f3be0600000, 138412032) = 0 [pid 5372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5372] ioctl(4, LOOP_CLR_FD) = 0 [pid 5372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5372] close(4) = 0 [pid 5372] close(3) = 0 [pid 5372] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5371] <... futex resumed>) = 0 [pid 5372] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5371] exit_group(0) = ? [pid 5372] <... futex resumed>) = ? [pid 5372] +++ exited with 0 +++ [pid 5371] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5371, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5373 attached , child_tidptr=0x55557b776690) = 5373 [pid 5373] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5373] setpgid(0, 0) = 0 [pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5373] write(3, "1000", 4) = 4 [pid 5373] close(3) = 0 [pid 5373] write(1, "executing program\n", 18executing program ) = 18 [pid 5373] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5373] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5373] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5373] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5373] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5373] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5374 attached [pid 5374] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5373] <... clone3 resumed> => {parent_tid=[5374]}, 88) = 5374 [pid 5374] <... rseq resumed>) = 0 [pid 5373] rt_sigprocmask(SIG_SETMASK, [], [pid 5374] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5373] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5374] <... set_robust_list resumed>) = 0 [pid 5374] rt_sigprocmask(SIG_SETMASK, [], [pid 5373] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5373] <... futex resumed>) = 0 [pid 5374] memfd_create("syzkaller", 0 [pid 5373] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5374] <... memfd_create resumed>) = 3 [pid 5374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5374] 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"..., 16777216) = 16777216 [pid 5374] munmap(0x7f3be0600000, 138412032) = 0 [pid 5374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5374] ioctl(4, LOOP_CLR_FD) = 0 [pid 5374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5374] close(4) = 0 [pid 5374] close(3) = 0 [pid 5374] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] <... futex resumed>) = 0 [pid 5373] exit_group(0 [pid 5374] <... futex resumed>) = ? [pid 5373] <... exit_group resumed>) = ? [pid 5374] +++ exited with 0 +++ [pid 5373] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5373, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5375 attached , child_tidptr=0x55557b776690) = 5375 [pid 5375] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5375] setpgid(0, 0) = 0 [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5375] write(3, "1000", 4) = 4 [pid 5375] close(3) = 0 [pid 5375] write(1, "executing program\n", 18executing program ) = 18 [pid 5375] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5375] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5375] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5375] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5375] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5375] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5376 attached [pid 5376] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5375] <... clone3 resumed> => {parent_tid=[5376]}, 88) = 5376 [pid 5376] <... rseq resumed>) = 0 [pid 5375] rt_sigprocmask(SIG_SETMASK, [], [pid 5376] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5376] <... set_robust_list resumed>) = 0 [pid 5375] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5375] <... futex resumed>) = 0 [pid 5376] memfd_create("syzkaller", 0 [pid 5375] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5376] <... memfd_create resumed>) = 3 [pid 5376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5376] 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"..., 16777216) = 16777216 [pid 5376] munmap(0x7f3be0600000, 138412032) = 0 [pid 5376] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5376] ioctl(4, LOOP_CLR_FD) = 0 [pid 5376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5376] close(4) = 0 [pid 5376] close(3) = 0 [pid 5376] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5376] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5375] <... futex resumed>) = 0 [pid 5375] exit_group(0) = ? [pid 5376] <... futex resumed>) = ? [pid 5376] +++ exited with 0 +++ [pid 5375] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5377 attached , child_tidptr=0x55557b776690) = 5377 [pid 5377] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5377] setpgid(0, 0) = 0 [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5377] write(3, "1000", 4) = 4 [pid 5377] close(3) = 0 [pid 5377] write(1, "executing program\n", 18executing program ) = 18 [pid 5377] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5377] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5377] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5377] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5377] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5378 attached [pid 5378] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5378] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5377] <... clone3 resumed> => {parent_tid=[5378]}, 88) = 5378 [pid 5378] <... set_robust_list resumed>) = 0 [pid 5377] rt_sigprocmask(SIG_SETMASK, [], [pid 5378] rt_sigprocmask(SIG_SETMASK, [], [pid 5377] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5378] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5377] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] memfd_create("syzkaller", 0 [pid 5377] <... futex resumed>) = 0 [pid 5377] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5378] <... memfd_create resumed>) = 3 [pid 5378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5378] 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"..., 16777216) = 16777216 [pid 5378] munmap(0x7f3be0600000, 138412032) = 0 [pid 5378] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5378] ioctl(4, LOOP_CLR_FD) = 0 [pid 5378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5378] close(4) = 0 [pid 5378] close(3) = 0 [pid 5378] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5377] <... futex resumed>) = 0 [pid 5378] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] exit_group(0 [pid 5378] <... futex resumed>) = ? [pid 5377] <... exit_group resumed>) = ? [pid 5378] +++ exited with 0 +++ [pid 5377] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5379 attached , child_tidptr=0x55557b776690) = 5379 [pid 5379] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5379] setpgid(0, 0) = 0 [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5379] write(3, "1000", 4) = 4 [pid 5379] close(3) = 0 [pid 5379] write(1, "executing program\n", 18executing program ) = 18 [pid 5379] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5379] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5379] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5379] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5379] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5379] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5380 attached [pid 5380] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5379] <... clone3 resumed> => {parent_tid=[5380]}, 88) = 5380 [pid 5380] <... rseq resumed>) = 0 [pid 5379] rt_sigprocmask(SIG_SETMASK, [], [pid 5380] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5379] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5380] <... set_robust_list resumed>) = 0 [pid 5379] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5379] <... futex resumed>) = 0 [pid 5379] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5380] memfd_create("syzkaller", 0) = 3 [pid 5380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5380] 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"..., 16777216) = 16777216 [pid 5380] munmap(0x7f3be0600000, 138412032) = 0 [pid 5380] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5380] ioctl(4, LOOP_CLR_FD) = 0 [pid 5380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5380] close(4) = 0 [pid 5380] close(3) = 0 [pid 5380] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5379] <... futex resumed>) = 0 [pid 5380] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5379] exit_group(0 [pid 5380] <... futex resumed>) = ? [pid 5379] <... exit_group resumed>) = ? [pid 5380] +++ exited with 0 +++ [pid 5379] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5381 attached , child_tidptr=0x55557b776690) = 5381 [pid 5381] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5381] setpgid(0, 0) = 0 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5381] write(3, "1000", 4) = 4 [pid 5381] close(3) = 0 [pid 5381] write(1, "executing program\n", 18executing program ) = 18 [pid 5381] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5381] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5381] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5381] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5381] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5381] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5382 attached [pid 5382] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5381] <... clone3 resumed> => {parent_tid=[5382]}, 88) = 5382 [pid 5382] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5381] rt_sigprocmask(SIG_SETMASK, [], [pid 5382] <... set_robust_list resumed>) = 0 [pid 5381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5382] rt_sigprocmask(SIG_SETMASK, [], [pid 5381] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5381] <... futex resumed>) = 0 [pid 5382] memfd_create("syzkaller", 0 [pid 5381] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5382] <... memfd_create resumed>) = 3 [pid 5382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5382] 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"..., 16777216) = 16777216 [pid 5382] munmap(0x7f3be0600000, 138412032) = 0 [pid 5382] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5382] ioctl(4, LOOP_CLR_FD) = 0 [pid 5382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5382] close(4) = 0 [pid 5382] close(3) = 0 [pid 5382] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] <... futex resumed>) = 0 [pid 5381] exit_group(0 [pid 5382] <... futex resumed>) = ? [pid 5381] <... exit_group resumed>) = ? [pid 5382] +++ exited with 0 +++ [pid 5381] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- 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 5383 attached , child_tidptr=0x55557b776690) = 5383 [pid 5383] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5383] setpgid(0, 0) = 0 [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5383] write(3, "1000", 4) = 4 [pid 5383] close(3) = 0 executing program [pid 5383] write(1, "executing program\n", 18) = 18 [pid 5383] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5383] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5383] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5383] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5383] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5383] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5384 attached => {parent_tid=[5384]}, 88) = 5384 [pid 5383] rt_sigprocmask(SIG_SETMASK, [], [pid 5384] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5384] <... rseq resumed>) = 0 [pid 5384] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5383] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5384] memfd_create("syzkaller", 0 [pid 5383] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5384] <... memfd_create resumed>) = 3 [pid 5384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5384] 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"..., 16777216) = 16777216 [pid 5384] munmap(0x7f3be0600000, 138412032) = 0 [pid 5384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5384] ioctl(4, LOOP_CLR_FD) = 0 [pid 5384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5384] close(4) = 0 [pid 5384] close(3) = 0 [pid 5384] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5383] <... futex resumed>) = 0 [pid 5384] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5383] exit_group(0 [pid 5384] <... futex resumed>) = ? [pid 5383] <... exit_group resumed>) = ? [pid 5384] +++ exited with 0 +++ [pid 5383] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5385 attached , child_tidptr=0x55557b776690) = 5385 [pid 5385] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5385] setpgid(0, 0) = 0 [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5385] write(3, "1000", 4) = 4 [pid 5385] close(3) = 0 [pid 5385] write(1, "executing program\n", 18executing program ) = 18 [pid 5385] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5385] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5385] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5385] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5385] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5385] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5386 attached => {parent_tid=[5386]}, 88) = 5386 [pid 5386] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5386] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5386] rt_sigprocmask(SIG_SETMASK, [], [pid 5385] rt_sigprocmask(SIG_SETMASK, [], [pid 5386] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5386] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5385] <... futex resumed>) = 0 [pid 5386] memfd_create("syzkaller", 0 [pid 5385] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5386] <... memfd_create resumed>) = 3 [pid 5386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5386] 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"..., 16777216) = 16777216 [pid 5386] munmap(0x7f3be0600000, 138412032) = 0 [pid 5386] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5386] ioctl(4, LOOP_CLR_FD) = 0 [pid 5386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5386] close(4) = 0 [pid 5386] close(3) = 0 [pid 5386] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5386] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] <... futex resumed>) = 0 [pid 5385] exit_group(0 [pid 5386] <... futex resumed>) = ? [pid 5385] <... exit_group resumed>) = ? [pid 5386] +++ exited with 0 +++ [pid 5385] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5387 attached , child_tidptr=0x55557b776690) = 5387 [pid 5387] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5387] setpgid(0, 0) = 0 [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5387] write(3, "1000", 4) = 4 [pid 5387] close(3) = 0 [pid 5387] write(1, "executing program\n", 18executing program ) = 18 [pid 5387] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5387] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5387] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5387] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5387] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5387] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5387] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5388 attached [pid 5388] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5387] <... clone3 resumed> => {parent_tid=[5388]}, 88) = 5388 [pid 5388] <... rseq resumed>) = 0 [pid 5387] rt_sigprocmask(SIG_SETMASK, [], [pid 5388] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5387] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5388] <... set_robust_list resumed>) = 0 [pid 5387] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5388] rt_sigprocmask(SIG_SETMASK, [], [pid 5387] <... futex resumed>) = 0 [pid 5388] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5387] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5388] memfd_create("syzkaller", 0) = 3 [pid 5388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5388] 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"..., 16777216) = 16777216 [pid 5388] munmap(0x7f3be0600000, 138412032) = 0 [pid 5388] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5388] ioctl(4, LOOP_CLR_FD) = 0 [pid 5388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5388] close(4) = 0 [pid 5388] close(3) = 0 [pid 5388] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5388] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5387] <... futex resumed>) = 0 [pid 5387] exit_group(0) = ? [pid 5388] <... futex resumed>) = ? [pid 5388] +++ exited with 0 +++ [pid 5387] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5387, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5389 attached , child_tidptr=0x55557b776690) = 5389 [pid 5389] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5389] setpgid(0, 0) = 0 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5389] write(3, "1000", 4) = 4 [pid 5389] close(3) = 0 executing program [pid 5389] write(1, "executing program\n", 18) = 18 [pid 5389] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5389] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5389] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5389] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5389] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5389] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5389] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5390 attached [pid 5390] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5389] <... clone3 resumed> => {parent_tid=[5390]}, 88) = 5390 [pid 5390] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5389] rt_sigprocmask(SIG_SETMASK, [], [pid 5390] <... set_robust_list resumed>) = 0 [pid 5389] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5390] rt_sigprocmask(SIG_SETMASK, [], [pid 5389] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5389] <... futex resumed>) = 0 [pid 5390] memfd_create("syzkaller", 0 [pid 5389] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5390] <... memfd_create resumed>) = 3 [pid 5390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5390] 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"..., 16777216) = 16777216 [pid 5390] munmap(0x7f3be0600000, 138412032) = 0 [pid 5390] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5390] ioctl(4, LOOP_CLR_FD) = 0 [pid 5390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5390] close(4) = 0 [pid 5390] close(3) = 0 [pid 5390] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5390] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5389] <... futex resumed>) = 0 [pid 5389] exit_group(0 [pid 5390] <... futex resumed>) = ? [pid 5389] <... exit_group resumed>) = ? [pid 5390] +++ exited with 0 +++ [pid 5389] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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=0x55557b776690) = 5391 ./strace-static-x86_64: Process 5391 attached [pid 5391] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5391] setpgid(0, 0) = 0 [pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5391] write(3, "1000", 4) = 4 [pid 5391] close(3) = 0 executing program [pid 5391] write(1, "executing program\n", 18) = 18 [pid 5391] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5391] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5391] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5391] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5391] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5391] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5392 attached [pid 5392] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5391] <... clone3 resumed> => {parent_tid=[5392]}, 88) = 5392 [pid 5392] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5391] rt_sigprocmask(SIG_SETMASK, [], [pid 5392] <... set_robust_list resumed>) = 0 [pid 5391] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5392] rt_sigprocmask(SIG_SETMASK, [], [pid 5391] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5391] <... futex resumed>) = 0 [pid 5392] memfd_create("syzkaller", 0 [pid 5391] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5392] <... memfd_create resumed>) = 3 [pid 5392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5392] 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"..., 16777216) = 16777216 [pid 5392] munmap(0x7f3be0600000, 138412032) = 0 [pid 5392] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5392] ioctl(4, LOOP_CLR_FD) = 0 [pid 5392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5392] close(4) = 0 [pid 5392] close(3) = 0 [pid 5392] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5391] <... futex resumed>) = 0 [pid 5391] exit_group(0 [pid 5392] <... futex resumed>) = ? [pid 5391] <... exit_group resumed>) = ? [pid 5392] +++ exited with 0 +++ [pid 5391] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5391, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5393 attached , child_tidptr=0x55557b776690) = 5393 [pid 5393] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5393] setpgid(0, 0) = 0 [pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5393] write(3, "1000", 4) = 4 [pid 5393] close(3) = 0 executing program [pid 5393] write(1, "executing program\n", 18) = 18 [pid 5393] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5393] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5393] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5393] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5393] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5393] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5394 attached [pid 5394] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5393] <... clone3 resumed> => {parent_tid=[5394]}, 88) = 5394 [pid 5394] <... rseq resumed>) = 0 [pid 5393] rt_sigprocmask(SIG_SETMASK, [], [pid 5394] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5393] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5394] <... set_robust_list resumed>) = 0 [pid 5393] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5393] <... futex resumed>) = 0 [pid 5393] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5394] memfd_create("syzkaller", 0) = 3 [pid 5394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5394] 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"..., 16777216) = 16777216 [pid 5394] munmap(0x7f3be0600000, 138412032) = 0 [pid 5394] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5394] ioctl(4, LOOP_CLR_FD) = 0 [pid 5394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5394] close(4) = 0 [pid 5394] close(3) = 0 [pid 5394] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5394] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5393] <... futex resumed>) = 0 [pid 5393] exit_group(0 [pid 5394] <... futex resumed>) = ? [pid 5393] <... exit_group resumed>) = ? [pid 5394] +++ exited with 0 +++ [pid 5393] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5393, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5395 attached , child_tidptr=0x55557b776690) = 5395 [pid 5395] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5395] setpgid(0, 0) = 0 [pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5395] write(3, "1000", 4) = 4 [pid 5395] close(3) = 0 executing program [pid 5395] write(1, "executing program\n", 18) = 18 [pid 5395] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5395] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5395] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5395] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5395] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5395] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5396 attached [pid 5396] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5395] <... clone3 resumed> => {parent_tid=[5396]}, 88) = 5396 [pid 5396] <... rseq resumed>) = 0 [pid 5396] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5395] rt_sigprocmask(SIG_SETMASK, [], [pid 5396] <... set_robust_list resumed>) = 0 [pid 5395] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5396] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5395] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5396] <... futex resumed>) = 0 [pid 5395] <... futex resumed>) = 1 [pid 5395] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5396] memfd_create("syzkaller", 0) = 3 [pid 5396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5396] 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"..., 16777216) = 16777216 [pid 5396] munmap(0x7f3be0600000, 138412032) = 0 [pid 5396] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5396] ioctl(4, LOOP_CLR_FD) = 0 [pid 5396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5396] close(4) = 0 [pid 5396] close(3) = 0 [pid 5396] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5396] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5395] <... futex resumed>) = 0 [pid 5395] exit_group(0) = ? [pid 5396] <... futex resumed>) = ? [pid 5396] +++ exited with 0 +++ [pid 5395] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5395, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5397 attached , child_tidptr=0x55557b776690) = 5397 [pid 5397] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5397] setpgid(0, 0) = 0 [pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5397] write(3, "1000", 4) = 4 [pid 5397] close(3) = 0 executing program [pid 5397] write(1, "executing program\n", 18) = 18 [pid 5397] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5397] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5397] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5397] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5397] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5397] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5398 attached [pid 5398] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5397] <... clone3 resumed> => {parent_tid=[5398]}, 88) = 5398 [pid 5398] <... rseq resumed>) = 0 [pid 5397] rt_sigprocmask(SIG_SETMASK, [], [pid 5398] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5397] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5398] <... set_robust_list resumed>) = 0 [pid 5397] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5397] <... futex resumed>) = 0 [pid 5398] memfd_create("syzkaller", 0 [pid 5397] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5398] <... memfd_create resumed>) = 3 [pid 5398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5398] 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"..., 16777216) = 16777216 [pid 5398] munmap(0x7f3be0600000, 138412032) = 0 [pid 5398] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5398] ioctl(4, LOOP_CLR_FD) = 0 [pid 5398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5398] close(4) = 0 [pid 5398] close(3) = 0 [pid 5398] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5397] <... futex resumed>) = 0 [pid 5398] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5397] exit_group(0 [pid 5398] <... futex resumed>) = ? [pid 5397] <... exit_group resumed>) = ? [pid 5398] +++ exited with 0 +++ [pid 5397] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5397, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5399 attached , child_tidptr=0x55557b776690) = 5399 [pid 5399] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5399] setpgid(0, 0) = 0 [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5399] write(3, "1000", 4) = 4 [pid 5399] close(3) = 0 executing program [pid 5399] write(1, "executing program\n", 18) = 18 [pid 5399] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5399] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5399] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5399] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5399] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5399] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5400 attached [pid 5400] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5399] <... clone3 resumed> => {parent_tid=[5400]}, 88) = 5400 [pid 5400] <... rseq resumed>) = 0 [pid 5400] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5399] rt_sigprocmask(SIG_SETMASK, [], [pid 5400] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5399] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5399] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5400] <... futex resumed>) = 0 [pid 5399] <... futex resumed>) = 1 [pid 5399] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5400] memfd_create("syzkaller", 0) = 3 [pid 5400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5400] 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"..., 16777216) = 16777216 [pid 5400] munmap(0x7f3be0600000, 138412032) = 0 [pid 5400] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5400] ioctl(4, LOOP_CLR_FD) = 0 [pid 5400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5400] close(4) = 0 [pid 5400] close(3) = 0 [pid 5400] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5399] <... futex resumed>) = 0 [pid 5400] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5399] exit_group(0 [pid 5400] <... futex resumed>) = ? [pid 5400] +++ exited with 0 +++ [pid 5399] <... exit_group resumed>) = ? [pid 5399] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5399, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5401 attached , child_tidptr=0x55557b776690) = 5401 [pid 5401] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5401] setpgid(0, 0) = 0 [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5401] write(3, "1000", 4) = 4 [pid 5401] close(3) = 0 [pid 5401] write(1, "executing program\n", 18executing program ) = 18 [pid 5401] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5401] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5401] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5401] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5401] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5402 attached [pid 5402] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5401] <... clone3 resumed> => {parent_tid=[5402]}, 88) = 5402 [pid 5402] <... rseq resumed>) = 0 [pid 5401] rt_sigprocmask(SIG_SETMASK, [], [pid 5402] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5401] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5402] <... set_robust_list resumed>) = 0 [pid 5402] rt_sigprocmask(SIG_SETMASK, [], [pid 5401] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5402] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5401] <... futex resumed>) = 0 [pid 5402] memfd_create("syzkaller", 0 [pid 5401] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5402] <... memfd_create resumed>) = 3 [pid 5402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5402] 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"..., 16777216) = 16777216 [pid 5402] munmap(0x7f3be0600000, 138412032) = 0 [pid 5402] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5402] ioctl(4, LOOP_CLR_FD) = 0 [pid 5402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5402] close(4) = 0 [pid 5402] close(3) = 0 [pid 5402] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] <... futex resumed>) = 0 [pid 5401] exit_group(0 [pid 5402] <... futex resumed>) = ? [pid 5401] <... exit_group resumed>) = ? [pid 5402] +++ exited with 0 +++ [pid 5401] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5401, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- 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 5403 attached , child_tidptr=0x55557b776690) = 5403 [pid 5403] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5403] setpgid(0, 0) = 0 [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5403] write(3, "1000", 4) = 4 [pid 5403] close(3) = 0 [pid 5403] write(1, "executing program\n", 18executing program ) = 18 [pid 5403] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5403] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5403] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5403] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5403] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5403] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5404 attached => {parent_tid=[5404]}, 88) = 5404 [pid 5403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5403] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5404] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5403] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5404] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5404] memfd_create("syzkaller", 0) = 3 [pid 5404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5404] 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"..., 16777216) = 16777216 [pid 5404] munmap(0x7f3be0600000, 138412032) = 0 [pid 5404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5404] ioctl(4, LOOP_CLR_FD) = 0 [pid 5404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5404] close(4) = 0 [pid 5404] close(3) = 0 [pid 5404] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5403] <... futex resumed>) = 0 [pid 5404] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5403] exit_group(0 [pid 5404] <... futex resumed>) = ? [pid 5403] <... exit_group resumed>) = ? [pid 5404] +++ exited with 0 +++ [pid 5403] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5403, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5405 attached , child_tidptr=0x55557b776690) = 5405 [pid 5405] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5405] setpgid(0, 0) = 0 [pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5405] write(3, "1000", 4) = 4 [pid 5405] close(3) = 0 [pid 5405] write(1, "executing program\n", 18executing program ) = 18 [pid 5405] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5405] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5405] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5405] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5405] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5405] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5405] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5406 attached [pid 5406] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5405] <... clone3 resumed> => {parent_tid=[5406]}, 88) = 5406 [pid 5406] <... rseq resumed>) = 0 [pid 5406] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5405] rt_sigprocmask(SIG_SETMASK, [], [pid 5406] <... set_robust_list resumed>) = 0 [pid 5405] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5406] rt_sigprocmask(SIG_SETMASK, [], [pid 5405] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5406] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5405] <... futex resumed>) = 0 [pid 5405] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5406] memfd_create("syzkaller", 0) = 3 [pid 5406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5406] 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"..., 16777216) = 16777216 [pid 5406] munmap(0x7f3be0600000, 138412032) = 0 [pid 5406] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5406] ioctl(4, LOOP_CLR_FD) = 0 [pid 5406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5406] close(4) = 0 [pid 5406] close(3) = 0 [pid 5406] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5405] <... futex resumed>) = 0 [pid 5406] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5405] exit_group(0 [pid 5406] <... futex resumed>) = ? [pid 5405] <... exit_group resumed>) = ? [pid 5406] +++ exited with 0 +++ [pid 5405] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5405, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5407 attached , child_tidptr=0x55557b776690) = 5407 [pid 5407] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5407] setpgid(0, 0) = 0 [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5407] write(3, "1000", 4) = 4 [pid 5407] close(3) = 0 executing program [pid 5407] write(1, "executing program\n", 18) = 18 [pid 5407] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5407] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5407] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5407] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5407] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5408 attached [pid 5408] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5407] <... clone3 resumed> => {parent_tid=[5408]}, 88) = 5408 [pid 5408] <... rseq resumed>) = 0 [pid 5407] rt_sigprocmask(SIG_SETMASK, [], [pid 5408] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5407] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5408] <... set_robust_list resumed>) = 0 [pid 5407] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5407] <... futex resumed>) = 0 [pid 5408] memfd_create("syzkaller", 0 [pid 5407] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5408] <... memfd_create resumed>) = 3 [pid 5408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5408] 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"..., 16777216) = 16777216 [pid 5408] munmap(0x7f3be0600000, 138412032) = 0 [pid 5408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5408] ioctl(4, LOOP_CLR_FD) = 0 [pid 5408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5408] close(4) = 0 [pid 5408] close(3) = 0 [pid 5408] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5407] <... futex resumed>) = 0 [pid 5408] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5407] exit_group(0) = ? [pid 5408] <... futex resumed>) = ? [pid 5408] +++ exited with 0 +++ [pid 5407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5407, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5409 attached , child_tidptr=0x55557b776690) = 5409 [pid 5409] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5409] setpgid(0, 0) = 0 [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5409] write(3, "1000", 4) = 4 [pid 5409] close(3) = 0 [pid 5409] write(1, "executing program\n", 18executing program ) = 18 [pid 5409] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5409] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5409] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5409] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5410 attached [pid 5410] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5409] <... clone3 resumed> => {parent_tid=[5410]}, 88) = 5410 [pid 5409] rt_sigprocmask(SIG_SETMASK, [], [pid 5410] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5409] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5410] <... set_robust_list resumed>) = 0 [pid 5410] rt_sigprocmask(SIG_SETMASK, [], [pid 5409] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5410] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5409] <... futex resumed>) = 0 [pid 5410] memfd_create("syzkaller", 0 [pid 5409] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5410] <... memfd_create resumed>) = 3 [pid 5410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5410] 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"..., 16777216) = 16777216 [pid 5410] munmap(0x7f3be0600000, 138412032) = 0 [pid 5410] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5410] ioctl(4, LOOP_CLR_FD) = 0 [pid 5410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5410] close(4) = 0 [pid 5410] close(3) = 0 [pid 5410] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5409] <... futex resumed>) = 0 [pid 5410] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5409] exit_group(0) = ? [pid 5410] <... futex resumed>) = ? [pid 5410] +++ exited with 0 +++ [pid 5409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5409, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5411 attached , child_tidptr=0x55557b776690) = 5411 [pid 5411] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5411] setpgid(0, 0) = 0 [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5411] write(3, "1000", 4) = 4 [pid 5411] close(3) = 0 executing program [pid 5411] write(1, "executing program\n", 18) = 18 [pid 5411] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5411] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5411] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5411] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5412 attached [pid 5412] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5411] <... clone3 resumed> => {parent_tid=[5412]}, 88) = 5412 [pid 5412] <... rseq resumed>) = 0 [pid 5411] rt_sigprocmask(SIG_SETMASK, [], [pid 5412] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5412] <... set_robust_list resumed>) = 0 [pid 5411] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5411] <... futex resumed>) = 0 [pid 5412] memfd_create("syzkaller", 0 [pid 5411] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5412] <... memfd_create resumed>) = 3 [pid 5412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5412] 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"..., 16777216) = 16777216 [pid 5412] munmap(0x7f3be0600000, 138412032) = 0 [pid 5412] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5412] ioctl(4, LOOP_CLR_FD) = 0 [pid 5412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5412] close(4) = 0 [pid 5412] close(3) = 0 [pid 5412] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5411] <... futex resumed>) = 0 [pid 5412] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5411] exit_group(0 [pid 5412] <... futex resumed>) = ? [pid 5411] <... exit_group resumed>) = ? [pid 5412] +++ exited with 0 +++ [pid 5411] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5411, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5413 attached , child_tidptr=0x55557b776690) = 5413 [pid 5413] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5413] setpgid(0, 0) = 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5413] write(3, "1000", 4) = 4 [pid 5413] close(3) = 0 [pid 5413] write(1, "executing program\n", 18executing program ) = 18 [pid 5413] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5413] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5413] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5413] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5413] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5413] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5414 attached => {parent_tid=[5414]}, 88) = 5414 [pid 5413] rt_sigprocmask(SIG_SETMASK, [], [pid 5414] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5413] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5414] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5413] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5414] <... set_robust_list resumed>) = 0 [pid 5413] <... futex resumed>) = 0 [pid 5414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5414] memfd_create("syzkaller", 0 [pid 5413] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5414] <... memfd_create resumed>) = 3 [pid 5414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5414] 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"..., 16777216) = 16777216 [pid 5414] munmap(0x7f3be0600000, 138412032) = 0 [pid 5414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5414] ioctl(4, LOOP_CLR_FD) = 0 [pid 5414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5414] close(4) = 0 [pid 5414] close(3) = 0 [pid 5414] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5413] <... futex resumed>) = 0 [pid 5414] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] exit_group(0) = ? [pid 5414] <... futex resumed>) = ? [pid 5414] +++ exited with 0 +++ [pid 5413] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5415 attached , child_tidptr=0x55557b776690) = 5415 [pid 5415] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5415] setpgid(0, 0) = 0 [pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5415] write(3, "1000", 4) = 4 [pid 5415] close(3) = 0 [pid 5415] write(1, "executing program\n", 18executing program ) = 18 [pid 5415] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5415] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5415] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5415] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5416 attached [pid 5416] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5415] <... clone3 resumed> => {parent_tid=[5416]}, 88) = 5416 [pid 5416] <... rseq resumed>) = 0 [pid 5415] rt_sigprocmask(SIG_SETMASK, [], [pid 5416] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5416] <... set_robust_list resumed>) = 0 [pid 5415] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5416] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5415] <... futex resumed>) = 0 [pid 5415] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5416] memfd_create("syzkaller", 0) = 3 [pid 5416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5416] 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"..., 16777216) = 16777216 [pid 5416] munmap(0x7f3be0600000, 138412032) = 0 [pid 5416] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5416] ioctl(4, LOOP_CLR_FD) = 0 [pid 5416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5416] close(4) = 0 [pid 5416] close(3) = 0 [pid 5416] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5415] <... futex resumed>) = 0 [pid 5416] <... futex resumed>) = 1 [pid 5415] exit_group(0 [pid 5416] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5415] <... exit_group resumed>) = ? [pid 5416] +++ exited with 0 +++ [pid 5415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5415, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5417 attached , child_tidptr=0x55557b776690) = 5417 [pid 5417] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5417] setpgid(0, 0) = 0 [pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5417] write(3, "1000", 4) = 4 [pid 5417] close(3) = 0 [pid 5417] write(1, "executing program\n", 18executing program ) = 18 [pid 5417] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5417] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5417] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5417] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5417] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5417] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5418 attached [pid 5418] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5417] <... clone3 resumed> => {parent_tid=[5418]}, 88) = 5418 [pid 5418] <... rseq resumed>) = 0 [pid 5418] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5417] rt_sigprocmask(SIG_SETMASK, [], [pid 5418] <... set_robust_list resumed>) = 0 [pid 5417] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5418] rt_sigprocmask(SIG_SETMASK, [], [pid 5417] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5418] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5417] <... futex resumed>) = 0 [pid 5418] memfd_create("syzkaller", 0 [pid 5417] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5418] <... memfd_create resumed>) = 3 [pid 5418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5418] 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"..., 16777216) = 16777216 [pid 5418] munmap(0x7f3be0600000, 138412032) = 0 [pid 5418] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5418] ioctl(4, LOOP_CLR_FD) = 0 [pid 5418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5418] close(4) = 0 [pid 5418] close(3) = 0 [pid 5418] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5417] <... futex resumed>) = 0 [pid 5418] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5417] exit_group(0 [pid 5418] <... futex resumed>) = ? [pid 5417] <... exit_group resumed>) = ? [pid 5418] +++ exited with 0 +++ [pid 5417] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5417, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=10 /* 0.10 s */} --- 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 5419 attached , child_tidptr=0x55557b776690) = 5419 [pid 5419] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5419] setpgid(0, 0) = 0 [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5419] write(3, "1000", 4) = 4 [pid 5419] close(3) = 0 [pid 5419] write(1, "executing program\n", 18executing program ) = 18 [pid 5419] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5419] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5419] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5419] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5419] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5419] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5420 attached [pid 5420] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5419] <... clone3 resumed> => {parent_tid=[5420]}, 88) = 5420 [pid 5420] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5419] rt_sigprocmask(SIG_SETMASK, [], [pid 5420] <... set_robust_list resumed>) = 0 [pid 5419] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5420] rt_sigprocmask(SIG_SETMASK, [], [pid 5419] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5420] memfd_create("syzkaller", 0 [pid 5419] <... futex resumed>) = 0 [pid 5419] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5420] <... memfd_create resumed>) = 3 [pid 5420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5420] 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"..., 16777216) = 16777216 [pid 5420] munmap(0x7f3be0600000, 138412032) = 0 [pid 5420] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5420] ioctl(4, LOOP_CLR_FD) = 0 [pid 5420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5420] close(4) = 0 [pid 5420] close(3) = 0 [pid 5420] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5419] <... futex resumed>) = 0 [pid 5420] <... futex resumed>) = 1 [pid 5419] exit_group(0 [pid 5420] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5419] <... exit_group resumed>) = ? [pid 5420] <... futex resumed>) = ? [pid 5420] +++ exited with 0 +++ [pid 5419] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5419, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=10 /* 0.10 s */} --- 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 5421 attached , child_tidptr=0x55557b776690) = 5421 [pid 5421] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5421] setpgid(0, 0) = 0 [pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5421] write(3, "1000", 4) = 4 [pid 5421] close(3) = 0 [pid 5421] write(1, "executing program\n", 18executing program ) = 18 [pid 5421] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5421] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5421] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5421] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5421] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5421] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5422 attached => {parent_tid=[5422]}, 88) = 5422 [pid 5421] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5422] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5421] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5421] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5422] <... rseq resumed>) = 0 [pid 5422] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5422] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5422] memfd_create("syzkaller", 0) = 3 [pid 5422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5422] 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"..., 16777216) = 16777216 [pid 5422] munmap(0x7f3be0600000, 138412032) = 0 [pid 5422] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5422] ioctl(4, LOOP_CLR_FD) = 0 [pid 5422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5422] close(4) = 0 [pid 5422] close(3) = 0 [pid 5422] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5421] <... futex resumed>) = 0 [pid 5422] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5421] exit_group(0 [pid 5422] <... futex resumed>) = ? [pid 5421] <... exit_group resumed>) = ? [pid 5422] +++ exited with 0 +++ [pid 5421] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5421, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5423 attached , child_tidptr=0x55557b776690) = 5423 [pid 5423] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5423] setpgid(0, 0) = 0 [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5423] write(3, "1000", 4) = 4 [pid 5423] close(3) = 0 [pid 5423] write(1, "executing program\n", 18executing program ) = 18 [pid 5423] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5423] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5423] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5423] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5423] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5423] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5423] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5424 attached [pid 5424] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5423] <... clone3 resumed> => {parent_tid=[5424]}, 88) = 5424 [pid 5424] <... rseq resumed>) = 0 [pid 5424] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5424] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5424] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5423] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5423] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5424] <... futex resumed>) = 0 [pid 5423] <... futex resumed>) = 1 [pid 5424] memfd_create("syzkaller", 0 [pid 5423] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5424] <... memfd_create resumed>) = 3 [pid 5424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5424] 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"..., 16777216) = 16777216 [pid 5424] munmap(0x7f3be0600000, 138412032) = 0 [pid 5424] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5424] ioctl(4, LOOP_CLR_FD) = 0 [pid 5424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5424] close(4) = 0 [pid 5424] close(3) = 0 [pid 5424] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5424] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5423] <... futex resumed>) = 0 [pid 5423] exit_group(0 [pid 5424] <... futex resumed>) = ? [pid 5423] <... exit_group resumed>) = ? [pid 5424] +++ exited with 0 +++ [pid 5423] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5423, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5425 attached , child_tidptr=0x55557b776690) = 5425 [pid 5425] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5425] setpgid(0, 0) = 0 [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5425] write(3, "1000", 4) = 4 [pid 5425] close(3) = 0 [pid 5425] write(1, "executing program\n", 18executing program ) = 18 [pid 5425] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5425] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5425] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5425] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5425] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5425] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5426 attached [pid 5426] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5425] <... clone3 resumed> => {parent_tid=[5426]}, 88) = 5426 [pid 5426] <... rseq resumed>) = 0 [pid 5425] rt_sigprocmask(SIG_SETMASK, [], [pid 5426] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5425] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5426] <... set_robust_list resumed>) = 0 [pid 5426] rt_sigprocmask(SIG_SETMASK, [], [pid 5425] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5426] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5425] <... futex resumed>) = 0 [pid 5425] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5426] memfd_create("syzkaller", 0) = 3 [pid 5426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5426] 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"..., 16777216) = 16777216 [pid 5426] munmap(0x7f3be0600000, 138412032) = 0 [pid 5426] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5426] ioctl(4, LOOP_CLR_FD) = 0 [pid 5426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5426] close(4) = 0 [pid 5426] close(3) = 0 [pid 5426] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5425] <... futex resumed>) = 0 [pid 5426] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5425] exit_group(0 [pid 5426] <... futex resumed>) = ? [pid 5426] +++ exited with 0 +++ [pid 5425] <... exit_group resumed>) = ? [pid 5425] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5425, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- 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 5427 attached , child_tidptr=0x55557b776690) = 5427 [pid 5427] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5427] setpgid(0, 0) = 0 [pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5427] write(3, "1000", 4) = 4 [pid 5427] close(3) = 0 [pid 5427] write(1, "executing program\n", 18executing program ) = 18 [pid 5427] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5427] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5427] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5427] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5427] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5427] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5428 attached [pid 5428] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5427] <... clone3 resumed> => {parent_tid=[5428]}, 88) = 5428 [pid 5428] <... rseq resumed>) = 0 [pid 5428] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5427] rt_sigprocmask(SIG_SETMASK, [], [pid 5428] <... set_robust_list resumed>) = 0 [pid 5427] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5428] rt_sigprocmask(SIG_SETMASK, [], [pid 5427] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5428] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5427] <... futex resumed>) = 0 [pid 5428] memfd_create("syzkaller", 0 [pid 5427] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5428] <... memfd_create resumed>) = 3 [pid 5428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5428] 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"..., 16777216) = 16777216 [pid 5428] munmap(0x7f3be0600000, 138412032) = 0 [pid 5428] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5428] ioctl(4, LOOP_CLR_FD) = 0 [pid 5428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5428] close(4) = 0 [pid 5428] close(3) = 0 [pid 5428] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] <... futex resumed>) = 0 [pid 5428] <... futex resumed>) = 1 [pid 5427] exit_group(0 [pid 5428] +++ exited with 0 +++ [pid 5427] <... exit_group resumed>) = ? [pid 5427] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5427, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5429 attached , child_tidptr=0x55557b776690) = 5429 [pid 5429] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5429] setpgid(0, 0) = 0 [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5429] write(3, "1000", 4) = 4 [pid 5429] close(3) = 0 [pid 5429] write(1, "executing program\n", 18executing program ) = 18 [pid 5429] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5429] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5429] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5429] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5429] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5429] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5430 attached => {parent_tid=[5430]}, 88) = 5430 [pid 5429] rt_sigprocmask(SIG_SETMASK, [], [pid 5430] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5429] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5429] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5429] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5430] <... rseq resumed>) = 0 [pid 5430] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5430] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5430] memfd_create("syzkaller", 0) = 3 [pid 5430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5430] 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"..., 16777216) = 16777216 [pid 5430] munmap(0x7f3be0600000, 138412032) = 0 [pid 5430] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5430] ioctl(4, LOOP_CLR_FD) = 0 [pid 5430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5430] close(4) = 0 [pid 5430] close(3) = 0 [pid 5430] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5429] <... futex resumed>) = 0 [pid 5429] exit_group(0 [pid 5430] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5429] <... exit_group resumed>) = ? [pid 5430] <... futex resumed>) = ? [pid 5430] +++ exited with 0 +++ [pid 5429] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5429, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5431 attached , child_tidptr=0x55557b776690) = 5431 [pid 5431] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5431] setpgid(0, 0) = 0 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5431] write(3, "1000", 4) = 4 [pid 5431] close(3) = 0 [pid 5431] write(1, "executing program\n", 18executing program ) = 18 [pid 5431] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5431] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5431] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5431] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5431] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5431] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5432 attached [pid 5432] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5431] <... clone3 resumed> => {parent_tid=[5432]}, 88) = 5432 [pid 5432] <... rseq resumed>) = 0 [pid 5431] rt_sigprocmask(SIG_SETMASK, [], [pid 5432] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5431] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5432] <... set_robust_list resumed>) = 0 [pid 5431] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5432] rt_sigprocmask(SIG_SETMASK, [], [pid 5431] <... futex resumed>) = 0 [pid 5432] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5432] memfd_create("syzkaller", 0 [pid 5431] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5432] <... memfd_create resumed>) = 3 [pid 5432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5432] 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"..., 16777216) = 16777216 [pid 5432] munmap(0x7f3be0600000, 138412032) = 0 [pid 5432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5432] ioctl(4, LOOP_CLR_FD) = 0 [pid 5432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5432] close(4) = 0 [pid 5432] close(3) = 0 [pid 5432] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5432] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5431] <... futex resumed>) = 0 [pid 5431] exit_group(0 [pid 5432] <... futex resumed>) = ? [pid 5431] <... exit_group resumed>) = ? [pid 5432] +++ exited with 0 +++ [pid 5431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5431, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 5433 attached , child_tidptr=0x55557b776690) = 5433 [pid 5433] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5433] setpgid(0, 0) = 0 [pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5433] write(3, "1000", 4) = 4 [pid 5433] close(3) = 0 [pid 5433] write(1, "executing program\n", 18executing program ) = 18 [pid 5433] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5433] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5433] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5433] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5433] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5433] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5434 attached [pid 5434] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5433] <... clone3 resumed> => {parent_tid=[5434]}, 88) = 5434 [pid 5434] <... rseq resumed>) = 0 [pid 5433] rt_sigprocmask(SIG_SETMASK, [], [pid 5434] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5433] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5434] <... set_robust_list resumed>) = 0 [pid 5433] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5433] <... futex resumed>) = 0 [pid 5434] memfd_create("syzkaller", 0 [pid 5433] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5434] <... memfd_create resumed>) = 3 [pid 5434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5434] 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"..., 16777216) = 16777216 [pid 5434] munmap(0x7f3be0600000, 138412032) = 0 [pid 5434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5434] ioctl(4, LOOP_CLR_FD) = 0 [pid 5434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5434] close(4) = 0 [pid 5434] close(3) = 0 [pid 5434] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5433] <... futex resumed>) = 0 [pid 5434] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5433] exit_group(0 [pid 5434] <... futex resumed>) = ? [pid 5433] <... exit_group resumed>) = ? [pid 5434] +++ exited with 0 +++ [pid 5433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5433, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5435 attached , child_tidptr=0x55557b776690) = 5435 [pid 5435] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5435] setpgid(0, 0) = 0 [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5435] write(3, "1000", 4) = 4 [pid 5435] close(3) = 0 executing program [pid 5435] write(1, "executing program\n", 18) = 18 [pid 5435] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5435] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5435] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5435] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5435] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5435] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5436 attached [pid 5436] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5435] <... clone3 resumed> => {parent_tid=[5436]}, 88) = 5436 [pid 5436] <... rseq resumed>) = 0 [pid 5436] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5435] rt_sigprocmask(SIG_SETMASK, [], [pid 5436] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5436] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5435] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5436] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5435] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5435] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5436] memfd_create("syzkaller", 0) = 3 [pid 5436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5436] 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"..., 16777216) = 16777216 [pid 5436] munmap(0x7f3be0600000, 138412032) = 0 [pid 5436] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5436] ioctl(4, LOOP_CLR_FD) = 0 [pid 5436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5436] close(4) = 0 [pid 5436] close(3) = 0 [pid 5436] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5435] <... futex resumed>) = 0 [pid 5436] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5435] exit_group(0 [pid 5436] <... futex resumed>) = ? [pid 5436] +++ exited with 0 +++ [pid 5435] <... exit_group resumed>) = ? [pid 5435] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5435, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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=0x55557b776690) = 5437 ./strace-static-x86_64: Process 5437 attached [pid 5437] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5437] setpgid(0, 0) = 0 [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5437] write(3, "1000", 4) = 4 [pid 5437] close(3) = 0 [pid 5437] write(1, "executing program\n", 18executing program ) = 18 [pid 5437] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5437] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5437] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5437] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5437] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5438 attached [pid 5438] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5438] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5437] <... clone3 resumed> => {parent_tid=[5438]}, 88) = 5438 [pid 5438] <... set_robust_list resumed>) = 0 [pid 5437] rt_sigprocmask(SIG_SETMASK, [], [pid 5438] rt_sigprocmask(SIG_SETMASK, [], [pid 5437] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5438] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5437] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5438] memfd_create("syzkaller", 0) = 3 [pid 5438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5438] 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"..., 16777216) = 16777216 [pid 5438] munmap(0x7f3be0600000, 138412032) = 0 [pid 5438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5438] ioctl(4, LOOP_CLR_FD) = 0 [pid 5438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5438] close(4) = 0 [pid 5438] close(3) = 0 [pid 5438] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5437] <... futex resumed>) = 0 [pid 5438] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5437] exit_group(0 [pid 5438] <... futex resumed>) = ? [pid 5437] <... exit_group resumed>) = ? [pid 5438] +++ exited with 0 +++ [pid 5437] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5439 attached , child_tidptr=0x55557b776690) = 5439 [pid 5439] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5439] setpgid(0, 0) = 0 [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5439] write(3, "1000", 4) = 4 [pid 5439] close(3) = 0 executing program [pid 5439] write(1, "executing program\n", 18) = 18 [pid 5439] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5439] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5439] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5439] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5439] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5439] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5440 attached [pid 5440] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5439] <... clone3 resumed> => {parent_tid=[5440]}, 88) = 5440 [pid 5440] <... rseq resumed>) = 0 [pid 5439] rt_sigprocmask(SIG_SETMASK, [], [pid 5440] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5439] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5440] <... set_robust_list resumed>) = 0 [pid 5439] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5440] rt_sigprocmask(SIG_SETMASK, [], [pid 5439] <... futex resumed>) = 0 [pid 5440] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5440] memfd_create("syzkaller", 0 [pid 5439] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5440] <... memfd_create resumed>) = 3 [pid 5440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5440] 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"..., 16777216) = 16777216 [pid 5440] munmap(0x7f3be0600000, 138412032) = 0 [pid 5440] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5440] ioctl(4, LOOP_CLR_FD) = 0 [pid 5440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5440] close(4) = 0 [pid 5440] close(3) = 0 [pid 5440] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5439] <... futex resumed>) = 0 [pid 5440] <... futex resumed>) = 1 [pid 5439] exit_group(0 [pid 5440] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5439] <... exit_group resumed>) = ? [pid 5440] +++ exited with 0 +++ [pid 5439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5439, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5441 attached , child_tidptr=0x55557b776690) = 5441 [pid 5441] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5441] setpgid(0, 0) = 0 [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5441] write(3, "1000", 4) = 4 [pid 5441] close(3) = 0 [pid 5441] write(1, "executing program\n", 18executing program ) = 18 [pid 5441] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5441] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5441] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5441] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5441] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5441] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5442 attached => {parent_tid=[5442]}, 88) = 5442 [pid 5442] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5442] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5441] rt_sigprocmask(SIG_SETMASK, [], [pid 5442] <... set_robust_list resumed>) = 0 [pid 5441] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5442] rt_sigprocmask(SIG_SETMASK, [], [pid 5441] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5442] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5441] <... futex resumed>) = 0 [pid 5442] memfd_create("syzkaller", 0 [pid 5441] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5442] <... memfd_create resumed>) = 3 [pid 5442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5442] 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"..., 16777216) = 16777216 [pid 5442] munmap(0x7f3be0600000, 138412032) = 0 [pid 5442] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5442] ioctl(4, LOOP_CLR_FD) = 0 [pid 5442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5442] close(4) = 0 [pid 5442] close(3) = 0 [pid 5442] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5441] <... futex resumed>) = 0 [pid 5442] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5441] exit_group(0 [pid 5442] <... futex resumed>) = ? [pid 5442] +++ exited with 0 +++ [pid 5441] <... exit_group resumed>) = ? [pid 5441] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5441, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5443 attached , child_tidptr=0x55557b776690) = 5443 [pid 5443] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5443] setpgid(0, 0) = 0 [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5443] write(3, "1000", 4) = 4 [pid 5443] close(3) = 0 [pid 5443] write(1, "executing program\n", 18executing program ) = 18 [pid 5443] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5443] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5443] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5443] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5443] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5443] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5444 attached => {parent_tid=[5444]}, 88) = 5444 [pid 5444] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5444] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5444] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5444] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5443] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5443] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5443] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5444] memfd_create("syzkaller", 0) = 3 [pid 5444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5444] 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"..., 16777216) = 16777216 [pid 5444] munmap(0x7f3be0600000, 138412032) = 0 [pid 5444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5444] ioctl(4, LOOP_CLR_FD) = 0 [pid 5444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5444] close(4) = 0 [pid 5444] close(3) = 0 [pid 5444] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5443] <... futex resumed>) = 0 [pid 5444] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5443] exit_group(0 [pid 5444] <... futex resumed>) = ? [pid 5443] <... exit_group resumed>) = ? [pid 5444] +++ exited with 0 +++ [pid 5443] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5443, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5445 attached , child_tidptr=0x55557b776690) = 5445 [pid 5445] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5445] setpgid(0, 0) = 0 [pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5445] write(3, "1000", 4) = 4 [pid 5445] close(3) = 0 [pid 5445] write(1, "executing program\n", 18executing program ) = 18 [pid 5445] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5445] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5445] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5445] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5445] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5445] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5445] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5446 attached => {parent_tid=[5446]}, 88) = 5446 [pid 5445] rt_sigprocmask(SIG_SETMASK, [], [pid 5446] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5445] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5446] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5445] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5446] <... set_robust_list resumed>) = 0 [pid 5445] <... futex resumed>) = 0 [pid 5446] rt_sigprocmask(SIG_SETMASK, [], [pid 5445] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5446] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5446] memfd_create("syzkaller", 0) = 3 [pid 5446] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5446] 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"..., 16777216) = 16777216 [pid 5446] munmap(0x7f3be0600000, 138412032) = 0 [pid 5446] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5446] ioctl(4, LOOP_CLR_FD) = 0 [pid 5446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5446] close(4) = 0 [pid 5446] close(3) = 0 [pid 5446] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5445] <... futex resumed>) = 0 [pid 5446] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5445] exit_group(0 [pid 5446] <... futex resumed>) = ? [pid 5445] <... exit_group resumed>) = ? [pid 5446] +++ exited with 0 +++ [pid 5445] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5445, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5447 attached , child_tidptr=0x55557b776690) = 5447 [pid 5447] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5447] setpgid(0, 0) = 0 [pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5447] write(3, "1000", 4) = 4 [pid 5447] close(3) = 0 [pid 5447] write(1, "executing program\n", 18) = 18 executing program [pid 5447] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5447] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5447] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5447] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5447] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5447] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5447] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5448 attached [pid 5448] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5447] <... clone3 resumed> => {parent_tid=[5448]}, 88) = 5448 [pid 5448] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5447] rt_sigprocmask(SIG_SETMASK, [], [pid 5448] <... set_robust_list resumed>) = 0 [pid 5447] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5448] rt_sigprocmask(SIG_SETMASK, [], [pid 5447] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5448] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5448] memfd_create("syzkaller", 0 [pid 5447] <... futex resumed>) = 0 [pid 5447] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5448] <... memfd_create resumed>) = 3 [pid 5448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5448] 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"..., 16777216) = 16777216 [pid 5448] munmap(0x7f3be0600000, 138412032) = 0 [pid 5448] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5448] ioctl(4, LOOP_CLR_FD) = 0 [pid 5448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5448] close(4) = 0 [pid 5448] close(3) = 0 [pid 5448] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5447] <... futex resumed>) = 0 [pid 5447] exit_group(0 [pid 5448] <... futex resumed>) = ? [pid 5447] <... exit_group resumed>) = ? [pid 5448] +++ exited with 0 +++ [pid 5447] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5447, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5449 attached , child_tidptr=0x55557b776690) = 5449 [pid 5449] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5449] setpgid(0, 0) = 0 [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5449] write(3, "1000", 4) = 4 [pid 5449] close(3) = 0 [pid 5449] write(1, "executing program\n", 18executing program ) = 18 [pid 5449] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5449] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5449] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5449] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5449] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5449] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5450 attached [pid 5450] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5449] <... clone3 resumed> => {parent_tid=[5450]}, 88) = 5450 [pid 5450] <... rseq resumed>) = 0 [pid 5449] rt_sigprocmask(SIG_SETMASK, [], [pid 5450] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5449] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5450] <... set_robust_list resumed>) = 0 [pid 5449] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5450] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5449] <... futex resumed>) = 0 [pid 5450] memfd_create("syzkaller", 0 [pid 5449] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5450] <... memfd_create resumed>) = 3 [pid 5450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5450] 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"..., 16777216) = 16777216 [pid 5450] munmap(0x7f3be0600000, 138412032) = 0 [pid 5450] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5450] ioctl(4, LOOP_CLR_FD) = 0 [pid 5450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5450] close(4) = 0 [pid 5450] close(3) = 0 [pid 5450] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5449] <... futex resumed>) = 0 [pid 5449] exit_group(0 [pid 5450] <... futex resumed>) = ? [pid 5449] <... exit_group resumed>) = ? [pid 5450] +++ exited with 0 +++ [pid 5449] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5451 attached , child_tidptr=0x55557b776690) = 5451 [pid 5451] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5451] setpgid(0, 0) = 0 [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5451] write(3, "1000", 4) = 4 [pid 5451] close(3) = 0 executing program [pid 5451] write(1, "executing program\n", 18) = 18 [pid 5451] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5451] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5451] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5451] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5451] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5451] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5452 attached => {parent_tid=[5452]}, 88) = 5452 [pid 5451] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5452] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5451] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5452] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5451] <... futex resumed>) = 0 [pid 5452] <... set_robust_list resumed>) = 0 [pid 5451] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5452] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5452] memfd_create("syzkaller", 0) = 3 [pid 5452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5452] 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"..., 16777216) = 16777216 [pid 5452] munmap(0x7f3be0600000, 138412032) = 0 [pid 5452] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5452] ioctl(4, LOOP_CLR_FD) = 0 [pid 5452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5452] close(4) = 0 [pid 5452] close(3) = 0 [pid 5452] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5452] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5451] <... futex resumed>) = 0 [pid 5451] exit_group(0 [pid 5452] <... futex resumed>) = ? [pid 5451] <... exit_group resumed>) = ? [pid 5452] +++ exited with 0 +++ [pid 5451] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5451, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5453 attached , child_tidptr=0x55557b776690) = 5453 [pid 5453] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5453] setpgid(0, 0) = 0 [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5453] write(3, "1000", 4) = 4 [pid 5453] close(3) = 0 executing program [pid 5453] write(1, "executing program\n", 18) = 18 [pid 5453] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5453] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5453] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5453] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5453] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5453] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5454 attached => {parent_tid=[5454]}, 88) = 5454 [pid 5453] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5453] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5454] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5453] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5454] <... rseq resumed>) = 0 [pid 5454] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5454] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5454] memfd_create("syzkaller", 0) = 3 [pid 5454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5454] 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"..., 16777216) = 16777216 [pid 5454] munmap(0x7f3be0600000, 138412032) = 0 [pid 5454] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5454] ioctl(4, LOOP_CLR_FD) = 0 [pid 5454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5454] close(4) = 0 [pid 5454] close(3) = 0 [pid 5454] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5453] <... futex resumed>) = 0 [pid 5454] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5453] exit_group(0 [pid 5454] <... futex resumed>) = ? [pid 5453] <... exit_group resumed>) = ? [pid 5454] +++ exited with 0 +++ [pid 5453] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5453, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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=0x55557b776690) = 5455 ./strace-static-x86_64: Process 5455 attached [pid 5455] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5455] setpgid(0, 0) = 0 [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5455] write(3, "1000", 4) = 4 [pid 5455] close(3) = 0 [pid 5455] write(1, "executing program\n", 18executing program ) = 18 [pid 5455] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5455] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5455] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5455] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5455] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5455] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5456 attached [pid 5456] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5455] <... clone3 resumed> => {parent_tid=[5456]}, 88) = 5456 [pid 5456] <... rseq resumed>) = 0 [pid 5455] rt_sigprocmask(SIG_SETMASK, [], [pid 5456] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5455] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5456] <... set_robust_list resumed>) = 0 [pid 5455] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5455] <... futex resumed>) = 0 [pid 5456] memfd_create("syzkaller", 0 [pid 5455] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5456] <... memfd_create resumed>) = 3 [pid 5456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5456] 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"..., 16777216) = 16777216 [pid 5456] munmap(0x7f3be0600000, 138412032) = 0 [pid 5456] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5456] ioctl(4, LOOP_CLR_FD) = 0 [pid 5456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5456] close(4) = 0 [ 278.955551][ T5253] Allocator stuck? Waited for 30 seconds [ 278.955565][ T5253] Allocator debug: [ 278.955570][ T5253] capacity1536 [ 278.955575][ T5253] reserved 31232 [ 278.955580][ T5253] hidden 0 [ 278.955585][ T5253] btree 0 [ 278.955589][ T5253] data 0 [ 278.955594][ T5253] cached 0 [ 278.955599][ T5253] reserved 0 [ 278.955604][ T5253] online_reserved 24 [ 278.955609][ T5253] nr_inodes 0 [pid 5456] close(3) = 0 [ 278.955614][ T5253] [ 278.955618][ T5253] freelist_wait waiting [ 278.955623][ T5253] open buckets allocated1 [ 278.955628][ T5253] open buckets total 1024 [ 278.955633][ T5253] open_buckets_wait empty [ 278.955638][ T5253] open_buckets_btree 0 [ 278.955650][ T5253] open_buckets_user 0 [ 278.955655][ T5253] btree reserve cache 0 [ 278.955659][ T5253] [ 278.955664][ T5253] Dev 0: [ 278.955668][ T5253] buckets sectors fragmented [pid 5456] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5455] <... futex resumed>) = 0 [pid 5456] <... futex resumed>) = 1 [pid 5455] exit_group(0) = ? [pid 5456] +++ exited with 0 +++ [pid 5455] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5455, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=17 /* 0.17 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 [ 278.955674][ T5253] free 0 0 0 [ 278.955680][ T5253] sb 0 0 0 [ 278.955685][ T5253] journal 0 0 0 [ 278.955690][ T5253] btree 0 0 0 [ 278.955696][ T5253] user 0 0 0 [ 278.955701][ T5253] cached 0 0 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5457 attached , child_tidptr=0x55557b776690) = 5457 [pid 5457] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5457] setpgid(0, 0) = 0 [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 278.955707][ T5253] parity 0 0 0 [ 278.955712][ T5253] stripe 0 0 0 [ 278.955718][ T5253] need_gc_gens 0 0 0 [ 278.955723][ T5253] need_discard 0 0 0 [ 278.955729][ T5253] unstriped 0 0 0 [ 278.955734][ T5253] capacity 128 [ 278.955739][ T5253] [ 278.955743][ T5253] reserves: [ 278.955748][ T5253] stripe 60 [pid 5457] write(3, "1000", 4) = 4 [pid 5457] close(3) = 0 executing program [pid 5457] write(1, "executing program\n", 18) = 18 [pid 5457] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5457] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5457] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [ 278.955753][ T5253] normal 58 [ 278.955758][ T5253] copygc 56 [ 278.955762][ T5253] btree 28 [ 278.955767][ T5253] btree_copygc 0 [ 278.955772][ T5253] reclaim 0 [ 278.955777][ T5253] interior_updates 0 [ 278.955782][ T5253] [ 278.955786][ T5253] open buckets 0 [ 278.955791][ T5253] buckets to invalidate 0 [ 278.955796][ T5253] [ 278.955800][ T5253] Copygc debug: [ 278.955805][ T5253] running: 0 [pid 5457] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5457] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5457] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5458 attached => {parent_tid=[5458]}, 88) = 5458 [pid 5458] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5457] rt_sigprocmask(SIG_SETMASK, [], [pid 5458] <... rseq resumed>) = 0 [pid 5457] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5458] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5457] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5458] <... set_robust_list resumed>) = 0 [pid 5458] rt_sigprocmask(SIG_SETMASK, [], [pid 5457] <... futex resumed>) = 0 [pid 5458] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5457] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5458] memfd_create("syzkaller", 0) = 3 [ 278.955809][ T5253] copygc_wait:0 [ 278.955814][ T5253] copygc_wait_at:0 [ 278.955819][ T5253] Currently waiting for:0 B [ 278.955824][ T5253] Currently waiting since:640 KiB [ 278.955829][ T5253] Currently calculated wait:0 B [ 278.955833][ T5253] [ 278.955838][ T5253] Journal debug: [ 278.955842][ T5253] flags: running,may_skip_flush [ 278.955848][ T5253] dirty journal entries: 0/32768 [ 278.955853][ T5253] seq: 8 [ 278.955857][ T5253] seq_ondisk: 8 [pid 5458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [ 278.955862][ T5253] last_seq: 9 [ 278.955867][ T5253] last_seq_ondisk: 8 [ 278.955872][ T5253] flushed_seq_ondisk: 8 [ 278.955877][ T5253] watermark: stripe [ 278.955882][ T5253] each entry reserved: 321 [ 278.955887][ T5253] nr flush writes: 1 [ 278.955891][ T5253] nr noflush writes: 0 [ 278.955896][ T5253] average write size: 1.23 KiB [ 278.955901][ T5253] nr direct reclaim: 0 [ 278.955906][ T5253] nr background reclaim: 0 [ 278.955911][ T5253] reclaim kicked: 0 [ 278.955916][ T5253] reclaim runs in: 0 ms [ 278.955921][ T5253] blocked: 0 [ 278.955926][ T5253] current entry sectors: 256 [ 278.955930][ T5253] current entry error: ok [ 278.955935][ T5253] current entry: closed [ 278.955940][ T5253] unwritten entries: [ 278.955945][ T5253] last buf closed [ 278.955949][ T5253] space: [ 278.955954][ T5253] discarded 256:1536 [ 278.955959][ T5253] clean ondisk 256:1536 [ 278.955964][ T5253] clean 256:1536 [ 278.955969][ T5253] total 256:2048 [ 278.955974][ T5253] dev 0: [ 278.955978][ T5253] nr 8 [ 278.955983][ T5253] bucket size 256 [ 278.955988][ T5253] available 6:248 [ 278.955993][ T5253] discard_idx 0 [ 278.955998][ T5253] dirty_ondisk 0 (seq 8) [ 278.956003][ T5253] dirty_idx 0 (seq 8) [ 278.956008][ T5253] cur_idx 0 (seq 8) [ 278.956013][ T5253] [pid 5458] 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"..., 16777216) = 16777216 [pid 5458] munmap(0x7f3be0600000, 138412032) = 0 [pid 5458] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5458] ioctl(4, LOOP_CLR_FD) = 0 [pid 5458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5458] close(4) = 0 [pid 5458] close(3) = 0 [pid 5458] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5457] <... futex resumed>) = 0 [pid 5458] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5457] exit_group(0 [pid 5458] <... futex resumed>) = ? [pid 5457] <... exit_group resumed>) = ? [pid 5458] +++ exited with 0 +++ [pid 5457] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5457, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- 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 5459 attached , child_tidptr=0x55557b776690) = 5459 [pid 5459] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5459] setpgid(0, 0) = 0 [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5459] write(3, "1000", 4) = 4 [pid 5459] close(3) = 0 executing program [pid 5459] write(1, "executing program\n", 18) = 18 [pid 5459] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5459] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5459] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5459] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5459] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5459] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5460 attached [pid 5460] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5459] <... clone3 resumed> => {parent_tid=[5460]}, 88) = 5460 [pid 5460] <... rseq resumed>) = 0 [pid 5459] rt_sigprocmask(SIG_SETMASK, [], [pid 5460] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5459] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5459] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5460] <... set_robust_list resumed>) = 0 [pid 5460] rt_sigprocmask(SIG_SETMASK, [], [pid 5459] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5460] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5460] memfd_create("syzkaller", 0) = 3 [pid 5460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5460] 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"..., 16777216) = 16777216 [pid 5460] munmap(0x7f3be0600000, 138412032) = 0 [pid 5460] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5460] ioctl(4, LOOP_CLR_FD) = 0 [pid 5460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5460] close(4) = 0 [pid 5460] close(3) = 0 [pid 5460] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5460] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5459] <... futex resumed>) = 0 [pid 5459] exit_group(0) = ? [pid 5460] <... futex resumed>) = ? [pid 5460] +++ exited with 0 +++ [pid 5459] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5461 attached , child_tidptr=0x55557b776690) = 5461 [pid 5461] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5461] setpgid(0, 0) = 0 [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5461] write(3, "1000", 4) = 4 [pid 5461] close(3) = 0 executing program [pid 5461] write(1, "executing program\n", 18) = 18 [pid 5461] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5461] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5461] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5461] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5461] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5461] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5462 attached [pid 5462] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5461] <... clone3 resumed> => {parent_tid=[5462]}, 88) = 5462 [pid 5462] <... rseq resumed>) = 0 [pid 5461] rt_sigprocmask(SIG_SETMASK, [], [pid 5462] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5461] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5462] <... set_robust_list resumed>) = 0 [pid 5461] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5462] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5461] <... futex resumed>) = 0 [pid 5462] memfd_create("syzkaller", 0 [pid 5461] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5462] <... memfd_create resumed>) = 3 [pid 5462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5462] 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"..., 16777216) = 16777216 [pid 5462] munmap(0x7f3be0600000, 138412032) = 0 [pid 5462] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5462] ioctl(4, LOOP_CLR_FD) = 0 [pid 5462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5462] close(4) = 0 [pid 5462] close(3) = 0 [pid 5462] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5462] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5461] <... futex resumed>) = 0 [pid 5461] exit_group(0) = ? [pid 5462] <... futex resumed>) = ? [pid 5462] +++ exited with 0 +++ [pid 5461] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5461, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5463 attached , child_tidptr=0x55557b776690) = 5463 [pid 5463] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5463] setpgid(0, 0) = 0 [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5463] write(3, "1000", 4) = 4 [pid 5463] close(3) = 0 [pid 5463] write(1, "executing program\n", 18executing program ) = 18 [pid 5463] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5463] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5463] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5463] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5463] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5463] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5464 attached [pid 5464] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5464] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5463] <... clone3 resumed> => {parent_tid=[5464]}, 88) = 5464 [pid 5464] <... set_robust_list resumed>) = 0 [pid 5463] rt_sigprocmask(SIG_SETMASK, [], [pid 5464] rt_sigprocmask(SIG_SETMASK, [], [pid 5463] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5464] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5463] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5464] memfd_create("syzkaller", 0 [pid 5463] <... futex resumed>) = 0 [pid 5463] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5464] <... memfd_create resumed>) = 3 [pid 5464] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5464] 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"..., 16777216) = 16777216 [pid 5464] munmap(0x7f3be0600000, 138412032) = 0 [pid 5464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5464] ioctl(4, LOOP_CLR_FD) = 0 [pid 5464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5464] close(4) = 0 [pid 5464] close(3) = 0 [pid 5464] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5463] <... futex resumed>) = 0 [pid 5464] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5463] exit_group(0 [pid 5464] <... futex resumed>) = ? [pid 5463] <... exit_group resumed>) = ? [pid 5464] +++ exited with 0 +++ [pid 5463] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5463, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5465 attached , child_tidptr=0x55557b776690) = 5465 [pid 5465] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5465] setpgid(0, 0) = 0 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5465] write(3, "1000", 4) = 4 [pid 5465] close(3) = 0 executing program [pid 5465] write(1, "executing program\n", 18) = 18 [pid 5465] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5465] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5465] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5465] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5465] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5465] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5466 attached [pid 5466] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5465] <... clone3 resumed> => {parent_tid=[5466]}, 88) = 5466 [pid 5466] <... rseq resumed>) = 0 [pid 5466] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5466] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5466] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5465] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5465] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5466] <... futex resumed>) = 0 [pid 5465] <... futex resumed>) = 1 [pid 5466] memfd_create("syzkaller", 0 [pid 5465] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5466] <... memfd_create resumed>) = 3 [pid 5466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5466] 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"..., 16777216) = 16777216 [pid 5466] munmap(0x7f3be0600000, 138412032) = 0 [pid 5466] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5466] ioctl(4, LOOP_CLR_FD) = 0 [pid 5466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5466] close(4) = 0 [pid 5466] close(3) = 0 [pid 5466] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5465] <... futex resumed>) = 0 [pid 5466] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5465] exit_group(0 [pid 5466] <... futex resumed>) = ? [pid 5465] <... exit_group resumed>) = ? [pid 5466] +++ exited with 0 +++ [pid 5465] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5467 attached , child_tidptr=0x55557b776690) = 5467 [pid 5467] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5467] setpgid(0, 0) = 0 [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5467] write(3, "1000", 4) = 4 [pid 5467] close(3) = 0 [pid 5467] write(1, "executing program\n", 18executing program ) = 18 [pid 5467] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5467] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5467] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5467] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5467] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5467] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5468 attached [pid 5468] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5467] <... clone3 resumed> => {parent_tid=[5468]}, 88) = 5468 [pid 5468] <... rseq resumed>) = 0 [pid 5467] rt_sigprocmask(SIG_SETMASK, [], [pid 5468] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5467] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5468] <... set_robust_list resumed>) = 0 [pid 5467] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5467] <... futex resumed>) = 0 [pid 5468] memfd_create("syzkaller", 0 [pid 5467] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5468] <... memfd_create resumed>) = 3 [pid 5468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5468] 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"..., 16777216) = 16777216 [pid 5468] munmap(0x7f3be0600000, 138412032) = 0 [pid 5468] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5468] ioctl(4, LOOP_CLR_FD) = 0 [pid 5468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5468] close(4) = 0 [pid 5468] close(3) = 0 [pid 5468] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] <... futex resumed>) = 0 [pid 5468] <... futex resumed>) = 1 [pid 5467] exit_group(0 [pid 5468] +++ exited with 0 +++ [pid 5467] <... exit_group resumed>) = ? [pid 5467] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5467, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5469 attached , child_tidptr=0x55557b776690) = 5469 [pid 5469] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5469] setpgid(0, 0) = 0 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5469] write(3, "1000", 4) = 4 [pid 5469] close(3) = 0 executing program [pid 5469] write(1, "executing program\n", 18) = 18 [pid 5469] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5469] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5469] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5469] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5469] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5469] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5470 attached => {parent_tid=[5470]}, 88) = 5470 [pid 5469] rt_sigprocmask(SIG_SETMASK, [], [pid 5470] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5469] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5469] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5470] <... rseq resumed>) = 0 [pid 5469] <... futex resumed>) = 0 [pid 5469] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5470] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5470] memfd_create("syzkaller", 0) = 3 [pid 5470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5470] 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"..., 16777216) = 16777216 [pid 5470] munmap(0x7f3be0600000, 138412032) = 0 [pid 5470] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5470] ioctl(4, LOOP_CLR_FD) = 0 [pid 5470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5470] close(4) = 0 [pid 5470] close(3) = 0 [pid 5470] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5470] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5469] <... futex resumed>) = 0 [pid 5469] exit_group(0) = ? [pid 5470] <... futex resumed>) = ? [pid 5470] +++ exited with 0 +++ [pid 5469] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5469, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- 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 5471 attached , child_tidptr=0x55557b776690) = 5471 [pid 5471] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5471] setpgid(0, 0) = 0 [pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5471] write(3, "1000", 4) = 4 [pid 5471] close(3) = 0 [pid 5471] write(1, "executing program\n", 18executing program ) = 18 [pid 5471] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5471] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5471] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5471] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5471] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5471] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5472 attached [pid 5472] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5471] <... clone3 resumed> => {parent_tid=[5472]}, 88) = 5472 [pid 5472] <... rseq resumed>) = 0 [pid 5471] rt_sigprocmask(SIG_SETMASK, [], [pid 5472] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5471] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5472] <... set_robust_list resumed>) = 0 [pid 5471] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5471] <... futex resumed>) = 0 [pid 5472] memfd_create("syzkaller", 0 [pid 5471] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5472] <... memfd_create resumed>) = 3 [pid 5472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5472] 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"..., 16777216) = 16777216 [pid 5472] munmap(0x7f3be0600000, 138412032) = 0 [pid 5472] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5472] ioctl(4, LOOP_CLR_FD) = 0 [pid 5472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5472] close(4) = 0 [pid 5472] close(3) = 0 [pid 5472] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5471] <... futex resumed>) = 0 [pid 5472] <... futex resumed>) = 1 [pid 5471] exit_group(0 [pid 5472] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5472] +++ exited with 0 +++ [pid 5471] <... exit_group resumed>) = ? [pid 5471] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5471, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5473 attached , child_tidptr=0x55557b776690) = 5473 [pid 5473] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5473] setpgid(0, 0) = 0 [pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5473] write(3, "1000", 4) = 4 [pid 5473] close(3) = 0 [pid 5473] write(1, "executing program\n", 18executing program ) = 18 [pid 5473] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5473] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5473] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5473] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5473] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5473] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5474 attached [pid 5474] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5473] <... clone3 resumed> => {parent_tid=[5474]}, 88) = 5474 [pid 5474] <... rseq resumed>) = 0 [pid 5473] rt_sigprocmask(SIG_SETMASK, [], [pid 5474] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5473] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5474] <... set_robust_list resumed>) = 0 [pid 5473] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5474] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5473] <... futex resumed>) = 0 [pid 5474] memfd_create("syzkaller", 0 [pid 5473] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5474] <... memfd_create resumed>) = 3 [pid 5474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5474] 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"..., 16777216) = 16777216 [pid 5474] munmap(0x7f3be0600000, 138412032) = 0 [pid 5474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5474] ioctl(4, LOOP_CLR_FD) = 0 [pid 5474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5474] close(4) = 0 [pid 5474] close(3) = 0 [pid 5474] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5473] <... futex resumed>) = 0 [pid 5473] exit_group(0 [pid 5474] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5473] <... exit_group resumed>) = ? [pid 5474] +++ exited with 0 +++ [pid 5473] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5473, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5475 attached , child_tidptr=0x55557b776690) = 5475 [pid 5475] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5475] setpgid(0, 0) = 0 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5475] write(3, "1000", 4) = 4 [pid 5475] close(3) = 0 executing program [pid 5475] write(1, "executing program\n", 18) = 18 [pid 5475] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5475] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5475] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5475] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5475] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5475] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5476 attached [pid 5476] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5475] <... clone3 resumed> => {parent_tid=[5476]}, 88) = 5476 [pid 5476] <... rseq resumed>) = 0 [pid 5475] rt_sigprocmask(SIG_SETMASK, [], [pid 5476] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5475] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5476] <... set_robust_list resumed>) = 0 [pid 5475] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5476] rt_sigprocmask(SIG_SETMASK, [], [pid 5475] <... futex resumed>) = 0 [pid 5476] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5476] memfd_create("syzkaller", 0 [pid 5475] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5476] <... memfd_create resumed>) = 3 [pid 5476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5476] 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"..., 16777216) = 16777216 [pid 5476] munmap(0x7f3be0600000, 138412032) = 0 [pid 5476] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5476] ioctl(4, LOOP_CLR_FD) = 0 [pid 5476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5476] close(4) = 0 [pid 5476] close(3) = 0 [pid 5476] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5475] <... futex resumed>) = 0 [pid 5476] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5475] exit_group(0 [pid 5476] <... futex resumed>) = ? [pid 5475] <... exit_group resumed>) = ? [pid 5476] +++ exited with 0 +++ [pid 5475] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5477 attached , child_tidptr=0x55557b776690) = 5477 [pid 5477] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5477] setpgid(0, 0) = 0 [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5477] write(3, "1000", 4) = 4 [pid 5477] close(3) = 0 [pid 5477] write(1, "executing program\n", 18executing program ) = 18 [pid 5477] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5477] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5477] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5477] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5477] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5477] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5478 attached [pid 5478] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5478] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5478] rt_sigprocmask(SIG_SETMASK, [], [pid 5477] <... clone3 resumed> => {parent_tid=[5478]}, 88) = 5478 [pid 5478] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5477] rt_sigprocmask(SIG_SETMASK, [], [pid 5478] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5477] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5477] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] <... futex resumed>) = 0 [pid 5477] <... futex resumed>) = 1 [pid 5478] memfd_create("syzkaller", 0 [pid 5477] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5478] <... memfd_create resumed>) = 3 [pid 5478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5478] 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"..., 16777216) = 16777216 [pid 5478] munmap(0x7f3be0600000, 138412032) = 0 [pid 5478] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5478] ioctl(4, LOOP_CLR_FD) = 0 [pid 5478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5478] close(4) = 0 [pid 5478] close(3) = 0 [pid 5478] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5477] <... futex resumed>) = 0 [pid 5478] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5477] exit_group(0 [pid 5478] <... futex resumed>) = ? [pid 5477] <... exit_group resumed>) = ? [pid 5478] +++ exited with 0 +++ [pid 5477] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5477, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5479 attached , child_tidptr=0x55557b776690) = 5479 [pid 5479] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5479] setpgid(0, 0) = 0 [pid 5479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5479] write(3, "1000", 4) = 4 [pid 5479] close(3) = 0 [pid 5479] write(1, "executing program\n", 18executing program ) = 18 [pid 5479] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5479] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5479] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5479] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5479] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5479] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5479] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5480 attached [pid 5480] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5479] <... clone3 resumed> => {parent_tid=[5480]}, 88) = 5480 [pid 5480] <... rseq resumed>) = 0 [pid 5479] rt_sigprocmask(SIG_SETMASK, [], [pid 5480] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5479] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5480] <... set_robust_list resumed>) = 0 [pid 5479] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5480] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5479] <... futex resumed>) = 0 [pid 5479] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5480] memfd_create("syzkaller", 0) = 3 [pid 5480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5480] 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"..., 16777216) = 16777216 [pid 5480] munmap(0x7f3be0600000, 138412032) = 0 [pid 5480] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5480] ioctl(4, LOOP_CLR_FD) = 0 [pid 5480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5480] close(4) = 0 [pid 5480] close(3) = 0 [pid 5480] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5479] <... futex resumed>) = 0 [pid 5480] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5479] exit_group(0 [pid 5480] <... futex resumed>) = ? [pid 5480] +++ exited with 0 +++ [pid 5479] <... exit_group resumed>) = ? [pid 5479] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5479, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5481 attached , child_tidptr=0x55557b776690) = 5481 [pid 5481] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5481] setpgid(0, 0) = 0 [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5481] write(3, "1000", 4) = 4 [pid 5481] close(3) = 0 [pid 5481] write(1, "executing program\n", 18executing program ) = 18 [pid 5481] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5481] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5481] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5481] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5481] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5481] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5482 attached [pid 5482] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5481] <... clone3 resumed> => {parent_tid=[5482]}, 88) = 5482 [pid 5482] <... rseq resumed>) = 0 [pid 5481] rt_sigprocmask(SIG_SETMASK, [], [pid 5482] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5481] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5482] <... set_robust_list resumed>) = 0 [pid 5481] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5481] <... futex resumed>) = 0 [pid 5482] memfd_create("syzkaller", 0 [pid 5481] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5482] <... memfd_create resumed>) = 3 [pid 5482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5482] 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"..., 16777216) = 16777216 [pid 5482] munmap(0x7f3be0600000, 138412032) = 0 [pid 5482] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5482] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5482] ioctl(4, LOOP_CLR_FD) = 0 [pid 5482] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5482] close(4) = 0 [pid 5482] close(3) = 0 [pid 5482] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5481] <... futex resumed>) = 0 [pid 5482] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5481] exit_group(0 [pid 5482] <... futex resumed>) = ? [pid 5482] +++ exited with 0 +++ [pid 5481] <... exit_group resumed>) = ? [pid 5481] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5481, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- 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 5483 attached , child_tidptr=0x55557b776690) = 5483 [pid 5483] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5483] setpgid(0, 0) = 0 [pid 5483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5483] write(3, "1000", 4) = 4 [pid 5483] close(3) = 0 [pid 5483] write(1, "executing program\n", 18executing program ) = 18 [pid 5483] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5483] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5483] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5483] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5483] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5483] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5484 attached => {parent_tid=[5484]}, 88) = 5484 [pid 5483] rt_sigprocmask(SIG_SETMASK, [], [pid 5484] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5483] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5484] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5483] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5484] <... set_robust_list resumed>) = 0 [pid 5483] <... futex resumed>) = 0 [pid 5484] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5484] memfd_create("syzkaller", 0 [pid 5483] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5484] <... memfd_create resumed>) = 3 [pid 5484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5484] 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"..., 16777216) = 16777216 [pid 5484] munmap(0x7f3be0600000, 138412032) = 0 [pid 5484] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5484] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5484] ioctl(4, LOOP_CLR_FD) = 0 [pid 5484] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5484] close(4) = 0 [pid 5484] close(3) = 0 [pid 5484] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5484] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5483] <... futex resumed>) = 0 [pid 5483] exit_group(0) = ? [pid 5484] <... futex resumed>) = ? [pid 5484] +++ exited with 0 +++ [pid 5483] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5483, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5485 attached , child_tidptr=0x55557b776690) = 5485 [pid 5485] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5485] setpgid(0, 0) = 0 [pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5485] write(3, "1000", 4) = 4 [pid 5485] close(3) = 0 [pid 5485] write(1, "executing program\n", 18executing program ) = 18 [pid 5485] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5485] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5485] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5485] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5485] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5485] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5485] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5486 attached [pid 5486] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5485] <... clone3 resumed> => {parent_tid=[5486]}, 88) = 5486 [pid 5486] <... rseq resumed>) = 0 [pid 5486] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5485] rt_sigprocmask(SIG_SETMASK, [], [pid 5486] <... set_robust_list resumed>) = 0 [pid 5485] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5486] rt_sigprocmask(SIG_SETMASK, [], [pid 5485] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5486] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5485] <... futex resumed>) = 0 [pid 5485] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5486] memfd_create("syzkaller", 0) = 3 [pid 5486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5486] 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"..., 16777216) = 16777216 [pid 5486] munmap(0x7f3be0600000, 138412032) = 0 [pid 5486] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5486] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5486] ioctl(4, LOOP_CLR_FD) = 0 [pid 5486] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5486] close(4) = 0 [pid 5486] close(3) = 0 [pid 5486] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5486] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5485] <... futex resumed>) = 0 [pid 5485] exit_group(0 [pid 5486] <... futex resumed>) = ? [pid 5485] <... exit_group resumed>) = ? [pid 5486] +++ exited with 0 +++ [pid 5485] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5485, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- 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 5487 attached , child_tidptr=0x55557b776690) = 5487 [pid 5487] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5487] setpgid(0, 0) = 0 [pid 5487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5487] write(3, "1000", 4) = 4 [pid 5487] close(3) = 0 [pid 5487] write(1, "executing program\n", 18executing program ) = 18 [pid 5487] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5487] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5487] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5487] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5487] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5487] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5488 attached [pid 5488] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5487] <... clone3 resumed> => {parent_tid=[5488]}, 88) = 5488 [pid 5488] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5487] rt_sigprocmask(SIG_SETMASK, [], [pid 5488] <... set_robust_list resumed>) = 0 [pid 5487] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5488] rt_sigprocmask(SIG_SETMASK, [], [pid 5487] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5488] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5487] <... futex resumed>) = 0 [pid 5488] memfd_create("syzkaller", 0 [pid 5487] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5488] <... memfd_create resumed>) = 3 [pid 5488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5488] 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"..., 16777216) = 16777216 [pid 5488] munmap(0x7f3be0600000, 138412032) = 0 [pid 5488] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5488] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5488] ioctl(4, LOOP_CLR_FD) = 0 [pid 5488] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5488] close(4) = 0 [pid 5488] close(3) = 0 [pid 5488] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5487] <... futex resumed>) = 0 [pid 5487] exit_group(0 [pid 5488] <... futex resumed>) = ? [pid 5487] <... exit_group resumed>) = ? [pid 5488] +++ exited with 0 +++ [pid 5487] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5487, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 5489 attached , child_tidptr=0x55557b776690) = 5489 [pid 5489] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5489] setpgid(0, 0) = 0 [pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5489] write(3, "1000", 4) = 4 [pid 5489] close(3) = 0 [pid 5489] write(1, "executing program\n", 18executing program ) = 18 [pid 5489] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5489] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5489] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5489] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5489] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5489] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5489] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5490 attached => {parent_tid=[5490]}, 88) = 5490 [pid 5490] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5489] rt_sigprocmask(SIG_SETMASK, [], [pid 5490] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5489] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5490] <... set_robust_list resumed>) = 0 [pid 5490] rt_sigprocmask(SIG_SETMASK, [], [pid 5489] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5490] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5489] <... futex resumed>) = 0 [pid 5490] memfd_create("syzkaller", 0 [pid 5489] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5490] <... memfd_create resumed>) = 3 [pid 5490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5490] 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"..., 16777216) = 16777216 [pid 5490] munmap(0x7f3be0600000, 138412032) = 0 [pid 5490] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5490] ioctl(4, LOOP_CLR_FD) = 0 [pid 5490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5490] close(4) = 0 [pid 5490] close(3) = 0 [pid 5490] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5489] <... futex resumed>) = 0 [pid 5489] exit_group(0) = ? [pid 5490] +++ exited with 0 +++ [pid 5489] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5489, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5491 attached , child_tidptr=0x55557b776690) = 5491 [pid 5491] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5491] setpgid(0, 0) = 0 [pid 5491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5491] write(3, "1000", 4) = 4 [pid 5491] close(3) = 0 executing program [pid 5491] write(1, "executing program\n", 18) = 18 [pid 5491] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5491] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5491] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5491] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5491] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5491] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5491] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5492 attached [pid 5492] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5491] <... clone3 resumed> => {parent_tid=[5492]}, 88) = 5492 [pid 5492] <... rseq resumed>) = 0 [pid 5491] rt_sigprocmask(SIG_SETMASK, [], [pid 5492] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5491] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5492] <... set_robust_list resumed>) = 0 [pid 5491] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5492] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5491] <... futex resumed>) = 0 [pid 5492] memfd_create("syzkaller", 0 [pid 5491] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5492] <... memfd_create resumed>) = 3 [pid 5492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5492] 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"..., 16777216) = 16777216 [pid 5492] munmap(0x7f3be0600000, 138412032) = 0 [pid 5492] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5492] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5492] ioctl(4, LOOP_CLR_FD) = 0 [pid 5492] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5492] close(4) = 0 [pid 5492] close(3) = 0 [pid 5492] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5492] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5491] <... futex resumed>) = 0 [pid 5491] exit_group(0) = ? [pid 5492] <... futex resumed>) = ? [pid 5492] +++ exited with 0 +++ [pid 5491] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5491, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 5493 attached , child_tidptr=0x55557b776690) = 5493 [pid 5493] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5493] setpgid(0, 0) = 0 [pid 5493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5493] write(3, "1000", 4) = 4 [pid 5493] close(3) = 0 executing program [pid 5493] write(1, "executing program\n", 18) = 18 [pid 5493] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5493] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5493] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5493] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5493] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5493] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5494 attached [pid 5494] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5493] <... clone3 resumed> => {parent_tid=[5494]}, 88) = 5494 [pid 5494] <... rseq resumed>) = 0 [pid 5493] rt_sigprocmask(SIG_SETMASK, [], [pid 5494] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5493] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5494] <... set_robust_list resumed>) = 0 [pid 5493] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5493] <... futex resumed>) = 0 [pid 5494] memfd_create("syzkaller", 0 [pid 5493] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5494] <... memfd_create resumed>) = 3 [pid 5494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5494] 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"..., 16777216) = 16777216 [pid 5494] munmap(0x7f3be0600000, 138412032) = 0 [pid 5494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5494] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5494] ioctl(4, LOOP_CLR_FD) = 0 [pid 5494] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5494] close(4) = 0 [pid 5494] close(3) = 0 [pid 5494] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5494] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5493] <... futex resumed>) = 0 [pid 5493] exit_group(0 [pid 5494] <... futex resumed>) = ? [pid 5494] +++ exited with 0 +++ [pid 5493] <... exit_group resumed>) = ? [pid 5493] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5493, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5495 attached , child_tidptr=0x55557b776690) = 5495 [pid 5495] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5495] setpgid(0, 0) = 0 [pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5495] write(3, "1000", 4) = 4 [pid 5495] close(3) = 0 executing program [pid 5495] write(1, "executing program\n", 18) = 18 [pid 5495] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5495] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5495] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5495] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5495] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5495] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5496 attached => {parent_tid=[5496]}, 88) = 5496 [pid 5495] rt_sigprocmask(SIG_SETMASK, [], [pid 5496] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5495] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5495] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5495] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5496] <... rseq resumed>) = 0 [pid 5496] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5496] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5496] memfd_create("syzkaller", 0) = 3 [pid 5496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5496] 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"..., 16777216) = 16777216 [pid 5496] munmap(0x7f3be0600000, 138412032) = 0 [pid 5496] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5496] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5496] ioctl(4, LOOP_CLR_FD) = 0 [pid 5496] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5496] close(4) = 0 [pid 5496] close(3) = 0 [pid 5496] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5496] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5495] <... futex resumed>) = 0 [pid 5495] exit_group(0 [pid 5496] <... futex resumed>) = ? [pid 5495] <... exit_group resumed>) = ? [pid 5496] +++ exited with 0 +++ [pid 5495] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5495, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5497 attached , child_tidptr=0x55557b776690) = 5497 [pid 5497] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5497] setpgid(0, 0) = 0 [pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5497] write(3, "1000", 4) = 4 [pid 5497] close(3) = 0 executing program [pid 5497] write(1, "executing program\n", 18) = 18 [pid 5497] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5497] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5497] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5497] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5497] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5497] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5497] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5498 attached => {parent_tid=[5498]}, 88) = 5498 [pid 5497] rt_sigprocmask(SIG_SETMASK, [], [pid 5498] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5497] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5497] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5498] <... rseq resumed>) = 0 [pid 5498] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5497] <... futex resumed>) = 0 [pid 5498] <... set_robust_list resumed>) = 0 [pid 5497] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5498] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5498] memfd_create("syzkaller", 0) = 3 [pid 5498] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5498] 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"..., 16777216) = 16777216 [pid 5498] munmap(0x7f3be0600000, 138412032) = 0 [pid 5498] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5498] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5498] ioctl(4, LOOP_CLR_FD) = 0 [pid 5498] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5498] close(4) = 0 [pid 5498] close(3) = 0 [pid 5498] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5497] <... futex resumed>) = 0 [pid 5498] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5497] exit_group(0) = ? [pid 5498] <... futex resumed>) = ? [pid 5498] +++ exited with 0 +++ [pid 5497] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5497, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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=0x55557b776690) = 5499 ./strace-static-x86_64: Process 5499 attached [pid 5499] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5499] setpgid(0, 0) = 0 [pid 5499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5499] write(3, "1000", 4) = 4 [pid 5499] close(3) = 0 [pid 5499] write(1, "executing program\n", 18executing program ) = 18 [pid 5499] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5499] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5499] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5499] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5499] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5499] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5500 attached [pid 5500] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5499] <... clone3 resumed> => {parent_tid=[5500]}, 88) = 5500 [pid 5500] <... rseq resumed>) = 0 [pid 5499] rt_sigprocmask(SIG_SETMASK, [], [pid 5500] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5499] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5500] <... set_robust_list resumed>) = 0 [pid 5499] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5500] rt_sigprocmask(SIG_SETMASK, [], [pid 5499] <... futex resumed>) = 0 [pid 5500] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5499] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5500] memfd_create("syzkaller", 0) = 3 [pid 5500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5500] 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"..., 16777216) = 16777216 [pid 5500] munmap(0x7f3be0600000, 138412032) = 0 [pid 5500] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5500] ioctl(4, LOOP_CLR_FD) = 0 [pid 5500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5500] close(4) = 0 [pid 5500] close(3) = 0 [pid 5500] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5500] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5499] <... futex resumed>) = 0 [pid 5499] exit_group(0 [pid 5500] <... futex resumed>) = ? [pid 5499] <... exit_group resumed>) = ? [pid 5500] +++ exited with 0 +++ [pid 5499] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5499, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5501 attached , child_tidptr=0x55557b776690) = 5501 [pid 5501] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5501] setpgid(0, 0) = 0 [pid 5501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5501] write(3, "1000", 4) = 4 [pid 5501] close(3) = 0 [pid 5501] write(1, "executing program\n", 18executing program ) = 18 [pid 5501] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5501] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5501] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5501] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5501] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5501] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5501] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5502 attached [pid 5502] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5501] <... clone3 resumed> => {parent_tid=[5502]}, 88) = 5502 [pid 5502] <... rseq resumed>) = 0 [pid 5501] rt_sigprocmask(SIG_SETMASK, [], [pid 5502] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5501] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5502] <... set_robust_list resumed>) = 0 [pid 5501] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5502] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5501] <... futex resumed>) = 0 [pid 5502] memfd_create("syzkaller", 0 [pid 5501] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5502] <... memfd_create resumed>) = 3 [pid 5502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5502] 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"..., 16777216) = 16777216 [pid 5502] munmap(0x7f3be0600000, 138412032) = 0 [pid 5502] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5502] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5502] ioctl(4, LOOP_CLR_FD) = 0 [pid 5502] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5502] close(4) = 0 [pid 5502] close(3) = 0 [pid 5502] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5501] <... futex resumed>) = 0 [pid 5502] <... futex resumed>) = 1 [pid 5501] exit_group(0 [pid 5502] +++ exited with 0 +++ [pid 5501] <... exit_group resumed>) = ? [pid 5501] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5501, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5503 attached , child_tidptr=0x55557b776690) = 5503 [pid 5503] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5503] setpgid(0, 0) = 0 [pid 5503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5503] write(3, "1000", 4) = 4 [pid 5503] close(3) = 0 [pid 5503] write(1, "executing program\n", 18executing program ) = 18 [pid 5503] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5503] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5503] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5503] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5503] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5503] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5503] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5504 attached [pid 5504] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5503] <... clone3 resumed> => {parent_tid=[5504]}, 88) = 5504 [pid 5504] <... rseq resumed>) = 0 [pid 5503] rt_sigprocmask(SIG_SETMASK, [], [pid 5504] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5503] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5504] <... set_robust_list resumed>) = 0 [pid 5504] rt_sigprocmask(SIG_SETMASK, [], [pid 5503] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5504] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5503] <... futex resumed>) = 0 [pid 5504] memfd_create("syzkaller", 0 [pid 5503] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5504] <... memfd_create resumed>) = 3 [pid 5504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5504] 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"..., 16777216) = 16777216 [pid 5504] munmap(0x7f3be0600000, 138412032) = 0 [pid 5504] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5504] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5504] ioctl(4, LOOP_CLR_FD) = 0 [pid 5504] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5504] close(4) = 0 [pid 5504] close(3) = 0 [pid 5504] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5503] <... futex resumed>) = 0 [pid 5503] exit_group(0 [pid 5504] <... futex resumed>) = ? [pid 5503] <... exit_group resumed>) = ? [pid 5504] +++ exited with 0 +++ [pid 5503] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5503, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5505 attached , child_tidptr=0x55557b776690) = 5505 [pid 5505] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5505] setpgid(0, 0) = 0 [pid 5505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5505] write(3, "1000", 4) = 4 [pid 5505] close(3) = 0 [pid 5505] write(1, "executing program\n", 18executing program ) = 18 [pid 5505] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5505] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5505] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5505] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5505] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5505] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5506 attached [pid 5506] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5506] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5505] <... clone3 resumed> => {parent_tid=[5506]}, 88) = 5506 [pid 5506] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5505] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5505] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] <... futex resumed>) = 0 [pid 5505] <... futex resumed>) = 1 [pid 5506] memfd_create("syzkaller", 0 [pid 5505] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5506] <... memfd_create resumed>) = 3 [pid 5506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5506] 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"..., 16777216) = 16777216 [pid 5506] munmap(0x7f3be0600000, 138412032) = 0 [pid 5506] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5506] ioctl(4, LOOP_CLR_FD) = 0 [pid 5506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5506] close(4) = 0 [pid 5506] close(3) = 0 [pid 5506] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5505] <... futex resumed>) = 0 [pid 5506] <... futex resumed>) = 1 [pid 5505] exit_group(0) = ? [pid 5506] +++ exited with 0 +++ [pid 5505] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5505, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- 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 5507 attached , child_tidptr=0x55557b776690) = 5507 [pid 5507] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5507] setpgid(0, 0) = 0 [pid 5507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5507] write(3, "1000", 4) = 4 [pid 5507] close(3) = 0 executing program [pid 5507] write(1, "executing program\n", 18) = 18 [pid 5507] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5507] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5507] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5507] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5507] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5507] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5508 attached [pid 5508] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5507] <... clone3 resumed> => {parent_tid=[5508]}, 88) = 5508 [pid 5508] <... rseq resumed>) = 0 [pid 5507] rt_sigprocmask(SIG_SETMASK, [], [pid 5508] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5507] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5508] <... set_robust_list resumed>) = 0 [pid 5507] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5508] rt_sigprocmask(SIG_SETMASK, [], [pid 5507] <... futex resumed>) = 0 [pid 5508] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5507] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5508] memfd_create("syzkaller", 0) = 3 [pid 5508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5508] 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"..., 16777216) = 16777216 [pid 5508] munmap(0x7f3be0600000, 138412032) = 0 [pid 5508] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5508] ioctl(4, LOOP_CLR_FD) = 0 [pid 5508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5508] close(4) = 0 [pid 5508] close(3) = 0 [pid 5508] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5507] <... futex resumed>) = 0 [pid 5508] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5507] exit_group(0 [pid 5508] <... futex resumed>) = ? [pid 5508] +++ exited with 0 +++ [pid 5507] <... exit_group resumed>) = ? [pid 5507] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5507, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5509 attached , child_tidptr=0x55557b776690) = 5509 [pid 5509] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5509] setpgid(0, 0) = 0 [pid 5509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5509] write(3, "1000", 4) = 4 [pid 5509] close(3) = 0 [pid 5509] write(1, "executing program\n", 18executing program ) = 18 [pid 5509] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5509] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5509] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5509] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5509] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5509] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5509] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5510 attached => {parent_tid=[5510]}, 88) = 5510 [pid 5509] rt_sigprocmask(SIG_SETMASK, [], [pid 5510] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5509] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5510] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5509] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5510] <... set_robust_list resumed>) = 0 [pid 5510] rt_sigprocmask(SIG_SETMASK, [], [pid 5509] <... futex resumed>) = 0 [pid 5510] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5509] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5510] memfd_create("syzkaller", 0) = 3 [pid 5510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5510] 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"..., 16777216) = 16777216 [pid 5510] munmap(0x7f3be0600000, 138412032) = 0 [pid 5510] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5510] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5510] ioctl(4, LOOP_CLR_FD) = 0 [pid 5510] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5510] close(4) = 0 [pid 5510] close(3) = 0 [pid 5510] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5509] <... futex resumed>) = 0 [pid 5510] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5509] exit_group(0 [pid 5510] <... futex resumed>) = ? [pid 5510] +++ exited with 0 +++ [pid 5509] <... exit_group resumed>) = ? [pid 5509] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5509, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5511 attached , child_tidptr=0x55557b776690) = 5511 [pid 5511] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5511] setpgid(0, 0) = 0 [pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5511] write(3, "1000", 4) = 4 [pid 5511] close(3) = 0 [pid 5511] write(1, "executing program\n", 18executing program ) = 18 [pid 5511] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5511] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5511] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5511] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5511] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5511] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5512 attached => {parent_tid=[5512]}, 88) = 5512 [pid 5511] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5511] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5511] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5512] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5512] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5512] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5512] memfd_create("syzkaller", 0) = 3 [pid 5512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5512] 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"..., 16777216) = 16777216 [pid 5512] munmap(0x7f3be0600000, 138412032) = 0 [pid 5512] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5512] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5512] ioctl(4, LOOP_CLR_FD) = 0 [pid 5512] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5512] close(4) = 0 [pid 5512] close(3) = 0 [pid 5512] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5512] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5511] <... futex resumed>) = 0 [pid 5511] exit_group(0) = ? [pid 5512] <... futex resumed>) = ? [pid 5512] +++ exited with 0 +++ [pid 5511] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5511, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5513 attached , child_tidptr=0x55557b776690) = 5513 [pid 5513] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5513] setpgid(0, 0) = 0 [pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5513] write(3, "1000", 4) = 4 [pid 5513] close(3) = 0 [pid 5513] write(1, "executing program\n", 18executing program ) = 18 [pid 5513] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5513] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5513] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5513] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5513] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5513] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5514 attached [pid 5514] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5513] <... clone3 resumed> => {parent_tid=[5514]}, 88) = 5514 [pid 5514] <... rseq resumed>) = 0 [pid 5513] rt_sigprocmask(SIG_SETMASK, [], [pid 5514] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5513] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5514] <... set_robust_list resumed>) = 0 [pid 5513] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5514] rt_sigprocmask(SIG_SETMASK, [], [pid 5513] <... futex resumed>) = 0 [pid 5514] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5513] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5514] memfd_create("syzkaller", 0) = 3 [pid 5514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5514] 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"..., 16777216) = 16777216 [pid 5514] munmap(0x7f3be0600000, 138412032) = 0 [pid 5514] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5514] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5514] ioctl(4, LOOP_CLR_FD) = 0 [pid 5514] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5514] close(4) = 0 [pid 5514] close(3) = 0 [pid 5514] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5513] <... futex resumed>) = 0 [pid 5514] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5513] exit_group(0) = ? [pid 5514] <... futex resumed>) = ? [pid 5514] +++ exited with 0 +++ [pid 5513] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5513, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5515 attached , child_tidptr=0x55557b776690) = 5515 [pid 5515] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5515] setpgid(0, 0) = 0 [pid 5515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5515] write(3, "1000", 4) = 4 [pid 5515] close(3) = 0 [pid 5515] write(1, "executing program\n", 18executing program ) = 18 [pid 5515] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5515] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5515] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5515] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5515] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5515] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5515] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5516 attached [pid 5516] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5515] <... clone3 resumed> => {parent_tid=[5516]}, 88) = 5516 [pid 5516] <... rseq resumed>) = 0 [pid 5516] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5515] rt_sigprocmask(SIG_SETMASK, [], [pid 5516] <... set_robust_list resumed>) = 0 [pid 5515] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5516] rt_sigprocmask(SIG_SETMASK, [], [pid 5515] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5516] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5515] <... futex resumed>) = 0 [pid 5516] memfd_create("syzkaller", 0 [pid 5515] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5516] <... memfd_create resumed>) = 3 [pid 5516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5516] 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"..., 16777216) = 16777216 [pid 5516] munmap(0x7f3be0600000, 138412032) = 0 [pid 5516] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5516] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5516] ioctl(4, LOOP_CLR_FD) = 0 [pid 5516] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5516] close(4) = 0 [pid 5516] close(3) = 0 [pid 5516] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5516] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5515] <... futex resumed>) = 0 [pid 5515] exit_group(0) = ? [pid 5516] <... futex resumed>) = ? [pid 5516] +++ exited with 0 +++ [pid 5515] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5515, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5517 attached , child_tidptr=0x55557b776690) = 5517 [pid 5517] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5517] setpgid(0, 0) = 0 [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5517] write(3, "1000", 4) = 4 [pid 5517] close(3) = 0 [pid 5517] write(1, "executing program\n", 18executing program ) = 18 [pid 5517] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5517] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5517] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5517] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5517] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5517] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5518 attached => {parent_tid=[5518]}, 88) = 5518 [pid 5517] rt_sigprocmask(SIG_SETMASK, [], [pid 5518] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5517] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5517] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5517] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5518] <... rseq resumed>) = 0 [pid 5518] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5518] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5518] memfd_create("syzkaller", 0) = 3 [pid 5518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5518] 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"..., 16777216) = 16777216 [pid 5518] munmap(0x7f3be0600000, 138412032) = 0 [pid 5518] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5518] ioctl(4, LOOP_CLR_FD) = 0 [pid 5518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5518] close(4) = 0 [pid 5518] close(3) = 0 [pid 5518] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5518] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5517] <... futex resumed>) = 0 [pid 5517] exit_group(0 [pid 5518] <... futex resumed>) = ? [pid 5517] <... exit_group resumed>) = ? [pid 5518] +++ exited with 0 +++ [pid 5517] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5517, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5519 attached , child_tidptr=0x55557b776690) = 5519 [pid 5519] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5519] setpgid(0, 0) = 0 [pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5519] write(3, "1000", 4) = 4 [pid 5519] close(3) = 0 [pid 5519] write(1, "executing program\n", 18executing program ) = 18 [pid 5519] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5519] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5519] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5519] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5519] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5519] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5519] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5520 attached [pid 5520] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5519] <... clone3 resumed> => {parent_tid=[5520]}, 88) = 5520 [pid 5520] <... rseq resumed>) = 0 [pid 5519] rt_sigprocmask(SIG_SETMASK, [], [pid 5520] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5519] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5520] <... set_robust_list resumed>) = 0 [pid 5519] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5520] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5519] <... futex resumed>) = 0 [pid 5520] memfd_create("syzkaller", 0 [pid 5519] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5520] <... memfd_create resumed>) = 3 [pid 5520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5520] 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"..., 16777216) = 16777216 [pid 5520] munmap(0x7f3be0600000, 138412032) = 0 [pid 5520] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5520] ioctl(4, LOOP_CLR_FD) = 0 [pid 5520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5520] close(4) = 0 [pid 5520] close(3) = 0 [pid 5520] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5519] <... futex resumed>) = 0 [pid 5519] exit_group(0 [pid 5520] <... futex resumed>) = ? [pid 5519] <... exit_group resumed>) = ? [pid 5520] +++ exited with 0 +++ [pid 5519] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5519, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5521 attached , child_tidptr=0x55557b776690) = 5521 [pid 5521] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5521] setpgid(0, 0) = 0 [pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5521] write(3, "1000", 4) = 4 [pid 5521] close(3) = 0 [pid 5521] write(1, "executing program\n", 18executing program ) = 18 [pid 5521] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5521] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5521] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5521] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5521] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5521] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5522 attached => {parent_tid=[5522]}, 88) = 5522 [pid 5521] rt_sigprocmask(SIG_SETMASK, [], [pid 5522] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5521] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5521] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5522] <... rseq resumed>) = 0 [pid 5521] <... futex resumed>) = 0 [pid 5521] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5522] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5522] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5522] memfd_create("syzkaller", 0) = 3 [pid 5522] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5522] 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"..., 16777216) = 16777216 [pid 5522] munmap(0x7f3be0600000, 138412032) = 0 [pid 5522] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5522] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5522] ioctl(4, LOOP_CLR_FD) = 0 [pid 5522] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5522] close(4) = 0 [pid 5522] close(3) = 0 [pid 5522] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5521] <... futex resumed>) = 0 [pid 5522] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5521] exit_group(0 [pid 5522] <... futex resumed>) = ? [pid 5521] <... exit_group resumed>) = ? [pid 5522] +++ exited with 0 +++ [pid 5521] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5521, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5523 attached , child_tidptr=0x55557b776690) = 5523 [pid 5523] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5523] setpgid(0, 0) = 0 [pid 5523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5523] write(3, "1000", 4) = 4 [pid 5523] close(3) = 0 executing program [pid 5523] write(1, "executing program\n", 18) = 18 [pid 5523] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5523] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5523] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5523] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5523] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5523] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[5524]}, 88) = 5524 ./strace-static-x86_64: Process 5524 attached [pid 5524] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5524] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5523] rt_sigprocmask(SIG_SETMASK, [], [pid 5524] <... set_robust_list resumed>) = 0 [pid 5523] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5524] rt_sigprocmask(SIG_SETMASK, [], [pid 5523] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5524] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5523] <... futex resumed>) = 0 [pid 5523] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5524] memfd_create("syzkaller", 0) = 3 [pid 5524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5524] 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"..., 16777216) = 16777216 [pid 5524] munmap(0x7f3be0600000, 138412032) = 0 [pid 5524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5524] ioctl(4, LOOP_CLR_FD) = 0 [pid 5524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5524] close(4) = 0 [pid 5524] close(3) = 0 [pid 5524] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5523] <... futex resumed>) = 0 [pid 5524] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5523] exit_group(0 [pid 5524] <... futex resumed>) = ? [pid 5523] <... exit_group resumed>) = ? [pid 5524] +++ exited with 0 +++ [pid 5523] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5523, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5525 attached , child_tidptr=0x55557b776690) = 5525 [pid 5525] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5525] setpgid(0, 0) = 0 [pid 5525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5525] write(3, "1000", 4) = 4 [pid 5525] close(3) = 0 [pid 5525] write(1, "executing program\n", 18executing program ) = 18 [pid 5525] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5525] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5525] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5525] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5525] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5525] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5526 attached [pid 5526] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5525] <... clone3 resumed> => {parent_tid=[5526]}, 88) = 5526 [pid 5526] <... rseq resumed>) = 0 [pid 5525] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5525] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5526] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5525] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5526] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5526] memfd_create("syzkaller", 0) = 3 [pid 5526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5526] 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"..., 16777216) = 16777216 [pid 5526] munmap(0x7f3be0600000, 138412032) = 0 [pid 5526] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5526] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5526] ioctl(4, LOOP_CLR_FD) = 0 [pid 5526] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5526] close(4) = 0 [pid 5526] close(3) = 0 [pid 5526] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5526] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5525] <... futex resumed>) = 0 [pid 5525] exit_group(0 [pid 5526] <... futex resumed>) = ? [pid 5525] <... exit_group resumed>) = ? [pid 5526] +++ exited with 0 +++ [pid 5525] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5525, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5527 attached , child_tidptr=0x55557b776690) = 5527 [pid 5527] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5527] setpgid(0, 0) = 0 [pid 5527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5527] write(3, "1000", 4) = 4 [pid 5527] close(3) = 0 [pid 5527] write(1, "executing program\n", 18executing program ) = 18 [pid 5527] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5527] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5527] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5527] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5527] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5527] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5528 attached [pid 5528] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5527] <... clone3 resumed> => {parent_tid=[5528]}, 88) = 5528 [pid 5528] <... rseq resumed>) = 0 [pid 5527] rt_sigprocmask(SIG_SETMASK, [], [pid 5528] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5527] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5528] <... set_robust_list resumed>) = 0 [pid 5527] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5528] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5527] <... futex resumed>) = 0 [pid 5528] memfd_create("syzkaller", 0 [pid 5527] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5528] <... memfd_create resumed>) = 3 [pid 5528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5528] 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"..., 16777216) = 16777216 [pid 5528] munmap(0x7f3be0600000, 138412032) = 0 [pid 5528] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5528] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5528] ioctl(4, LOOP_CLR_FD) = 0 [pid 5528] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5528] close(4) = 0 [pid 5528] close(3) = 0 [pid 5528] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5527] <... futex resumed>) = 0 [pid 5528] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5527] exit_group(0 [pid 5528] <... futex resumed>) = ? [pid 5528] +++ exited with 0 +++ [pid 5527] <... exit_group resumed>) = ? [pid 5527] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5527, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5529 attached , child_tidptr=0x55557b776690) = 5529 [pid 5529] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5529] setpgid(0, 0) = 0 [pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5529] write(3, "1000", 4) = 4 [pid 5529] close(3) = 0 [pid 5529] write(1, "executing program\n", 18executing program ) = 18 [pid 5529] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5529] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5529] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5529] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5529] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5529] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5530 attached [pid 5530] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5529] <... clone3 resumed> => {parent_tid=[5530]}, 88) = 5530 [pid 5530] <... rseq resumed>) = 0 [pid 5529] rt_sigprocmask(SIG_SETMASK, [], [pid 5530] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5529] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5530] <... set_robust_list resumed>) = 0 [pid 5529] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5529] <... futex resumed>) = 0 [pid 5530] memfd_create("syzkaller", 0 [pid 5529] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5530] <... memfd_create resumed>) = 3 [pid 5530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5530] 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"..., 16777216) = 16777216 [pid 5530] munmap(0x7f3be0600000, 138412032) = 0 [pid 5530] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5530] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5530] ioctl(4, LOOP_CLR_FD) = 0 [pid 5530] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5530] close(4) = 0 [pid 5530] close(3) = 0 [pid 5530] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5529] <... futex resumed>) = 0 [pid 5530] <... futex resumed>) = 1 [pid 5529] exit_group(0 [pid 5530] +++ exited with 0 +++ [pid 5529] <... exit_group resumed>) = ? [pid 5529] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5529, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5531 attached , child_tidptr=0x55557b776690) = 5531 [pid 5531] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5531] setpgid(0, 0) = 0 [pid 5531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5531] write(3, "1000", 4) = 4 [pid 5531] close(3) = 0 executing program [pid 5531] write(1, "executing program\n", 18) = 18 [pid 5531] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5531] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5531] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5531] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5531] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5531] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5531] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5532 attached [pid 5532] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5531] <... clone3 resumed> => {parent_tid=[5532]}, 88) = 5532 [pid 5532] <... rseq resumed>) = 0 [pid 5531] rt_sigprocmask(SIG_SETMASK, [], [pid 5532] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5531] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5532] <... set_robust_list resumed>) = 0 [pid 5531] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5532] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5531] <... futex resumed>) = 0 [pid 5532] memfd_create("syzkaller", 0 [pid 5531] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5532] <... memfd_create resumed>) = 3 [pid 5532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5532] 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"..., 16777216) = 16777216 [pid 5532] munmap(0x7f3be0600000, 138412032) = 0 [pid 5532] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5532] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5532] ioctl(4, LOOP_CLR_FD) = 0 [pid 5532] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5532] close(4) = 0 [pid 5532] close(3) = 0 [pid 5532] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5531] <... futex resumed>) = 0 [pid 5531] exit_group(0 [pid 5532] <... futex resumed>) = ? [pid 5531] <... exit_group resumed>) = ? [pid 5532] +++ exited with 0 +++ [pid 5531] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5531, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5533 attached , child_tidptr=0x55557b776690) = 5533 [pid 5533] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5533] setpgid(0, 0) = 0 [pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5533] write(3, "1000", 4) = 4 [pid 5533] close(3) = 0 executing program [pid 5533] write(1, "executing program\n", 18) = 18 [pid 5533] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5533] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5533] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5533] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5533] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5533] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5534 attached [pid 5534] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5533] <... clone3 resumed> => {parent_tid=[5534]}, 88) = 5534 [pid 5534] <... rseq resumed>) = 0 [pid 5533] rt_sigprocmask(SIG_SETMASK, [], [pid 5534] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5533] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5534] <... set_robust_list resumed>) = 0 [pid 5533] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5533] <... futex resumed>) = 0 [pid 5534] memfd_create("syzkaller", 0 [pid 5533] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5534] <... memfd_create resumed>) = 3 [pid 5534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5534] 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"..., 16777216) = 16777216 [pid 5534] munmap(0x7f3be0600000, 138412032) = 0 [pid 5534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5534] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5534] ioctl(4, LOOP_CLR_FD) = 0 [pid 5534] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5534] close(4) = 0 [pid 5534] close(3) = 0 [pid 5534] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5533] <... futex resumed>) = 0 [pid 5534] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5533] exit_group(0 [pid 5534] <... futex resumed>) = ? [pid 5533] <... exit_group resumed>) = ? [pid 5534] +++ exited with 0 +++ [pid 5533] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5533, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5535 attached , child_tidptr=0x55557b776690) = 5535 [pid 5535] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5535] setpgid(0, 0) = 0 [pid 5535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5535] write(3, "1000", 4) = 4 [pid 5535] close(3) = 0 executing program [pid 5535] write(1, "executing program\n", 18) = 18 [pid 5535] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5535] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5535] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5535] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5535] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5535] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5536 attached [pid 5536] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5535] <... clone3 resumed> => {parent_tid=[5536]}, 88) = 5536 [pid 5536] <... rseq resumed>) = 0 [pid 5535] rt_sigprocmask(SIG_SETMASK, [], [pid 5536] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5535] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5536] <... set_robust_list resumed>) = 0 [pid 5535] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5536] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5535] <... futex resumed>) = 0 [pid 5536] memfd_create("syzkaller", 0 [pid 5535] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5536] <... memfd_create resumed>) = 3 [pid 5536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5536] 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"..., 16777216) = 16777216 [pid 5536] munmap(0x7f3be0600000, 138412032) = 0 [pid 5536] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5536] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5536] ioctl(4, LOOP_CLR_FD) = 0 [pid 5536] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5536] close(4) = 0 [pid 5536] close(3) = 0 [pid 5536] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] <... futex resumed>) = 0 [pid 5535] exit_group(0 [pid 5536] <... futex resumed>) = ? [pid 5535] <... exit_group resumed>) = ? [pid 5536] +++ exited with 0 +++ [pid 5535] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5535, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5537 attached , child_tidptr=0x55557b776690) = 5537 [pid 5537] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5537] setpgid(0, 0) = 0 [pid 5537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5537] write(3, "1000", 4) = 4 [pid 5537] close(3) = 0 executing program [pid 5537] write(1, "executing program\n", 18) = 18 [pid 5537] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5537] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5537] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5537] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5537] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5537] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5538 attached => {parent_tid=[5538]}, 88) = 5538 [pid 5537] rt_sigprocmask(SIG_SETMASK, [], [pid 5538] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5537] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5538] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5537] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5538] <... set_robust_list resumed>) = 0 [pid 5537] <... futex resumed>) = 0 [pid 5538] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5538] memfd_create("syzkaller", 0 [pid 5537] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5538] <... memfd_create resumed>) = 3 [pid 5538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5538] 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"..., 16777216) = 16777216 [pid 5538] munmap(0x7f3be0600000, 138412032) = 0 [pid 5538] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5538] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5538] ioctl(4, LOOP_CLR_FD) = 0 [pid 5538] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5538] close(4) = 0 [pid 5538] close(3) = 0 [pid 5538] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5538] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5537] <... futex resumed>) = 0 [pid 5537] exit_group(0) = ? [pid 5538] <... futex resumed>) = ? [pid 5538] +++ exited with 0 +++ [pid 5537] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5537, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- 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 5539 attached , child_tidptr=0x55557b776690) = 5539 [pid 5539] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5539] setpgid(0, 0) = 0 [pid 5539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5539] write(3, "1000", 4) = 4 [pid 5539] close(3) = 0 executing program [pid 5539] write(1, "executing program\n", 18) = 18 [pid 5539] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5539] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5539] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5539] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5539] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5539] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5539] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5540 attached [pid 5540] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5540] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5540] rt_sigprocmask(SIG_SETMASK, [], [pid 5539] <... clone3 resumed> => {parent_tid=[5540]}, 88) = 5540 [pid 5540] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5539] rt_sigprocmask(SIG_SETMASK, [], [pid 5540] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5539] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5539] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5540] <... futex resumed>) = 0 [pid 5539] <... futex resumed>) = 1 [pid 5540] memfd_create("syzkaller", 0 [pid 5539] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5540] <... memfd_create resumed>) = 3 [pid 5540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5540] 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"..., 16777216) = 16777216 [pid 5540] munmap(0x7f3be0600000, 138412032) = 0 [pid 5540] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5540] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5540] ioctl(4, LOOP_CLR_FD) = 0 [pid 5540] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5540] close(4) = 0 [pid 5540] close(3) = 0 [pid 5540] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5539] <... futex resumed>) = 0 [pid 5540] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5539] exit_group(0 [pid 5540] <... futex resumed>) = ? [pid 5539] <... exit_group resumed>) = ? [pid 5540] +++ exited with 0 +++ [pid 5539] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5539, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5541 attached , child_tidptr=0x55557b776690) = 5541 [pid 5541] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5541] setpgid(0, 0) = 0 [pid 5541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5541] write(3, "1000", 4) = 4 [pid 5541] close(3) = 0 [pid 5541] write(1, "executing program\n", 18executing program ) = 18 [pid 5541] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5541] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5541] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5541] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5541] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5541] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5542 attached => {parent_tid=[5542]}, 88) = 5542 [pid 5542] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5542] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5541] rt_sigprocmask(SIG_SETMASK, [], [pid 5542] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5541] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5541] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5542] <... futex resumed>) = 0 [pid 5541] <... futex resumed>) = 1 [pid 5542] memfd_create("syzkaller", 0 [pid 5541] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5542] <... memfd_create resumed>) = 3 [pid 5542] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5542] 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"..., 16777216) = 16777216 [pid 5542] munmap(0x7f3be0600000, 138412032) = 0 [pid 5542] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5542] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5542] ioctl(4, LOOP_CLR_FD) = 0 [pid 5542] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5542] close(4) = 0 [pid 5542] close(3) = 0 [pid 5542] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5542] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5541] <... futex resumed>) = 0 [pid 5541] exit_group(0 [pid 5542] <... futex resumed>) = ? [pid 5541] <... exit_group resumed>) = ? [pid 5542] +++ exited with 0 +++ [pid 5541] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5541, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5543 attached , child_tidptr=0x55557b776690) = 5543 [pid 5543] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5543] setpgid(0, 0) = 0 [pid 5543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5543] write(3, "1000", 4) = 4 [pid 5543] close(3) = 0 [pid 5543] write(1, "executing program\n", 18executing program ) = 18 [pid 5543] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5543] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5543] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5543] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5543] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5543] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5543] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5544 attached [pid 5544] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5543] <... clone3 resumed> => {parent_tid=[5544]}, 88) = 5544 [pid 5544] <... rseq resumed>) = 0 [pid 5543] rt_sigprocmask(SIG_SETMASK, [], [pid 5544] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5543] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5544] <... set_robust_list resumed>) = 0 [pid 5543] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5544] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5543] <... futex resumed>) = 0 [pid 5544] memfd_create("syzkaller", 0 [pid 5543] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5544] <... memfd_create resumed>) = 3 [pid 5544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5544] 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"..., 16777216) = 16777216 [pid 5544] munmap(0x7f3be0600000, 138412032) = 0 [pid 5544] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5544] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5544] ioctl(4, LOOP_CLR_FD) = 0 [pid 5544] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5544] close(4) = 0 [pid 5544] close(3) = 0 [pid 5544] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5544] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5543] <... futex resumed>) = 0 [pid 5543] exit_group(0) = ? [pid 5544] <... futex resumed>) = ? [pid 5544] +++ exited with 0 +++ [pid 5543] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5543, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=9 /* 0.09 s */} --- 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 5545 attached , child_tidptr=0x55557b776690) = 5545 [pid 5545] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5545] setpgid(0, 0) = 0 [pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5545] write(3, "1000", 4) = 4 [pid 5545] close(3) = 0 executing program [pid 5545] write(1, "executing program\n", 18) = 18 [pid 5545] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5545] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5545] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5545] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5545] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5545] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5545] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5546 attached [pid 5546] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5545] <... clone3 resumed> => {parent_tid=[5546]}, 88) = 5546 [pid 5546] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5545] rt_sigprocmask(SIG_SETMASK, [], [pid 5546] <... set_robust_list resumed>) = 0 [pid 5546] rt_sigprocmask(SIG_SETMASK, [], [pid 5545] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5546] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5545] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5546] memfd_create("syzkaller", 0 [pid 5545] <... futex resumed>) = 0 [pid 5545] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5546] <... memfd_create resumed>) = 3 [pid 5546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5546] 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"..., 16777216) = 16777216 [pid 5546] munmap(0x7f3be0600000, 138412032) = 0 [pid 5546] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5546] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5546] ioctl(4, LOOP_CLR_FD) = 0 [pid 5546] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5546] close(4) = 0 [pid 5546] close(3) = 0 [pid 5546] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5545] <... futex resumed>) = 0 [pid 5545] exit_group(0 [pid 5546] ???( [pid 5545] <... exit_group resumed>) = ? [pid 5546] <... ??? resumed>) = ? [pid 5546] +++ exited with 0 +++ [pid 5545] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5545, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5547 attached , child_tidptr=0x55557b776690) = 5547 [pid 5547] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5547] setpgid(0, 0) = 0 [pid 5547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5547] write(3, "1000", 4) = 4 [pid 5547] close(3) = 0 [pid 5547] write(1, "executing program\n", 18executing program ) = 18 [pid 5547] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5547] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5547] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5547] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5547] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5547] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5547] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5548 attached [pid 5548] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5548] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5547] <... clone3 resumed> => {parent_tid=[5548]}, 88) = 5548 [pid 5548] <... set_robust_list resumed>) = 0 [pid 5547] rt_sigprocmask(SIG_SETMASK, [], [pid 5548] rt_sigprocmask(SIG_SETMASK, [], [pid 5547] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5548] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5547] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5548] memfd_create("syzkaller", 0 [pid 5547] <... futex resumed>) = 0 [pid 5548] <... memfd_create resumed>) = 3 [pid 5548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5547] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5548] 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"..., 16777216) = 16777216 [pid 5548] munmap(0x7f3be0600000, 138412032) = 0 [pid 5548] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5548] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5548] ioctl(4, LOOP_CLR_FD) = 0 [pid 5548] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5548] close(4) = 0 [pid 5548] close(3) = 0 [pid 5548] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5547] <... futex resumed>) = 0 [pid 5548] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5547] exit_group(0 [pid 5548] <... futex resumed>) = ? [pid 5548] +++ exited with 0 +++ [pid 5547] <... exit_group resumed>) = ? [pid 5547] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5547, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5549 attached , child_tidptr=0x55557b776690) = 5549 [pid 5549] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5549] setpgid(0, 0) = 0 [pid 5549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5549] write(3, "1000", 4) = 4 [pid 5549] close(3) = 0 executing program [pid 5549] write(1, "executing program\n", 18) = 18 [pid 5549] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5549] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5549] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5549] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5549] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5549] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5549] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5550 attached [pid 5550] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5549] <... clone3 resumed> => {parent_tid=[5550]}, 88) = 5550 [pid 5550] <... rseq resumed>) = 0 [pid 5549] rt_sigprocmask(SIG_SETMASK, [], [pid 5550] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5549] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5550] <... set_robust_list resumed>) = 0 [pid 5549] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5549] <... futex resumed>) = 0 [pid 5549] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5550] memfd_create("syzkaller", 0) = 3 [pid 5550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5550] 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"..., 16777216) = 16777216 [pid 5550] munmap(0x7f3be0600000, 138412032) = 0 [pid 5550] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5550] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5550] ioctl(4, LOOP_CLR_FD) = 0 [pid 5550] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5550] close(4) = 0 [pid 5550] close(3) = 0 [pid 5550] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5549] <... futex resumed>) = 0 [pid 5550] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5549] exit_group(0 [pid 5550] <... futex resumed>) = ? [pid 5550] +++ exited with 0 +++ [pid 5549] <... exit_group resumed>) = ? [pid 5549] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5549, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5551 attached , child_tidptr=0x55557b776690) = 5551 [pid 5551] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5551] setpgid(0, 0) = 0 [pid 5551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5551] write(3, "1000", 4) = 4 [pid 5551] close(3) = 0 [pid 5551] write(1, "executing program\n", 18executing program ) = 18 [pid 5551] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5551] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5551] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5551] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5551] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5551] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5551] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5552 attached [pid 5552] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5551] <... clone3 resumed> => {parent_tid=[5552]}, 88) = 5552 [pid 5552] <... rseq resumed>) = 0 [pid 5551] rt_sigprocmask(SIG_SETMASK, [], [pid 5552] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5551] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5552] <... set_robust_list resumed>) = 0 [pid 5551] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5552] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5551] <... futex resumed>) = 0 [pid 5552] memfd_create("syzkaller", 0 [pid 5551] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5552] <... memfd_create resumed>) = 3 [pid 5552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5552] 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"..., 16777216) = 16777216 [pid 5552] munmap(0x7f3be0600000, 138412032) = 0 [pid 5552] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5552] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5552] ioctl(4, LOOP_CLR_FD) = 0 [pid 5552] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5552] close(4) = 0 [pid 5552] close(3) = 0 [pid 5552] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5551] <... futex resumed>) = 0 [pid 5551] exit_group(0 [pid 5552] <... futex resumed>) = ? [pid 5551] <... exit_group resumed>) = ? [pid 5552] +++ exited with 0 +++ [pid 5551] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5551, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5553 attached , child_tidptr=0x55557b776690) = 5553 [pid 5553] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5553] setpgid(0, 0) = 0 [pid 5553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5553] write(3, "1000", 4) = 4 [pid 5553] close(3) = 0 [pid 5553] write(1, "executing program\n", 18executing program ) = 18 [pid 5553] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5553] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5553] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5553] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5553] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5553] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5554 attached [pid 5554] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5553] <... clone3 resumed> => {parent_tid=[5554]}, 88) = 5554 [pid 5554] <... rseq resumed>) = 0 [pid 5553] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5553] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5553] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5554] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5554] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5554] memfd_create("syzkaller", 0) = 3 [pid 5554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5554] 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"..., 16777216) = 16777216 [pid 5554] munmap(0x7f3be0600000, 138412032) = 0 [pid 5554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5554] ioctl(4, LOOP_CLR_FD) = 0 [pid 5554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5554] close(4) = 0 [pid 5554] close(3) = 0 [pid 5554] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5553] <... futex resumed>) = 0 [pid 5554] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5553] exit_group(0) = ? [pid 5554] <... futex resumed>) = ? [pid 5554] +++ exited with 0 +++ [pid 5553] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5553, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5555 attached , child_tidptr=0x55557b776690) = 5555 [pid 5555] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5555] setpgid(0, 0) = 0 [pid 5555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5555] write(3, "1000", 4) = 4 [pid 5555] close(3) = 0 executing program [pid 5555] write(1, "executing program\n", 18) = 18 [pid 5555] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5555] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5555] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5555] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5555] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5555] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5555] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5556 attached [pid 5556] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5555] <... clone3 resumed> => {parent_tid=[5556]}, 88) = 5556 [pid 5556] <... rseq resumed>) = 0 [pid 5555] rt_sigprocmask(SIG_SETMASK, [], [pid 5556] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5555] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5556] <... set_robust_list resumed>) = 0 [pid 5555] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5556] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5555] <... futex resumed>) = 0 [pid 5556] memfd_create("syzkaller", 0 [pid 5555] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5556] <... memfd_create resumed>) = 3 [pid 5556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5556] 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"..., 16777216) = 16777216 [pid 5556] munmap(0x7f3be0600000, 138412032) = 0 [pid 5556] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5556] ioctl(4, LOOP_CLR_FD) = 0 [pid 5556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5556] close(4) = 0 [pid 5556] close(3) = 0 [pid 5556] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5555] <... futex resumed>) = 0 [pid 5556] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5555] exit_group(0 [pid 5556] <... futex resumed>) = ? [pid 5555] <... exit_group resumed>) = ? [pid 5556] +++ exited with 0 +++ [pid 5555] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5555, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5557 attached , child_tidptr=0x55557b776690) = 5557 [pid 5557] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5557] setpgid(0, 0) = 0 [pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5557] write(3, "1000", 4) = 4 [pid 5557] close(3) = 0 [pid 5557] write(1, "executing program\n", 18executing program ) = 18 [pid 5557] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5557] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5557] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5557] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5557] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5557] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5557] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5558 attached [pid 5558] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5557] <... clone3 resumed> => {parent_tid=[5558]}, 88) = 5558 [pid 5558] <... rseq resumed>) = 0 [pid 5557] rt_sigprocmask(SIG_SETMASK, [], [pid 5558] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5557] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5558] <... set_robust_list resumed>) = 0 [pid 5557] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5558] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5557] <... futex resumed>) = 0 [pid 5558] memfd_create("syzkaller", 0 [pid 5557] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5558] <... memfd_create resumed>) = 3 [pid 5558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5558] 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"..., 16777216) = 16777216 [pid 5558] munmap(0x7f3be0600000, 138412032) = 0 [pid 5558] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5558] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5558] ioctl(4, LOOP_CLR_FD) = 0 [pid 5558] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5558] close(4) = 0 [pid 5558] close(3) = 0 [pid 5558] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5557] <... futex resumed>) = 0 [pid 5558] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5557] exit_group(0) = ? [pid 5558] <... futex resumed>) = ? [pid 5558] +++ exited with 0 +++ [pid 5557] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5557, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5559 attached , child_tidptr=0x55557b776690) = 5559 [pid 5559] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5559] setpgid(0, 0) = 0 [pid 5559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5559] write(3, "1000", 4) = 4 [pid 5559] close(3) = 0 [pid 5559] write(1, "executing program\n", 18executing program ) = 18 [pid 5559] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5559] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5559] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5559] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5559] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5559] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5560 attached [pid 5560] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5559] <... clone3 resumed> => {parent_tid=[5560]}, 88) = 5560 [pid 5560] <... rseq resumed>) = 0 [pid 5559] rt_sigprocmask(SIG_SETMASK, [], [pid 5560] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5559] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5560] <... set_robust_list resumed>) = 0 [pid 5559] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5560] rt_sigprocmask(SIG_SETMASK, [], [pid 5559] <... futex resumed>) = 0 [pid 5560] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5559] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5560] memfd_create("syzkaller", 0) = 3 [pid 5560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5560] 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"..., 16777216) = 16777216 [pid 5560] munmap(0x7f3be0600000, 138412032) = 0 [pid 5560] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5560] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5560] ioctl(4, LOOP_CLR_FD) = 0 [pid 5560] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5560] close(4) = 0 [pid 5560] close(3) = 0 [pid 5560] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5560] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5559] <... futex resumed>) = 0 [pid 5559] exit_group(0) = ? [pid 5560] <... futex resumed>) = ? [pid 5560] +++ exited with 0 +++ [pid 5559] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5559, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- 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 5561 attached , child_tidptr=0x55557b776690) = 5561 [pid 5561] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5561] setpgid(0, 0) = 0 [pid 5561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5561] write(3, "1000", 4) = 4 [pid 5561] close(3) = 0 executing program [pid 5561] write(1, "executing program\n", 18) = 18 [pid 5561] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5561] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5561] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5561] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5561] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5561] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5561] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5562 attached [pid 5562] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5561] <... clone3 resumed> => {parent_tid=[5562]}, 88) = 5562 [pid 5562] <... rseq resumed>) = 0 [pid 5562] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5561] rt_sigprocmask(SIG_SETMASK, [], [pid 5562] <... set_robust_list resumed>) = 0 [pid 5561] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5562] rt_sigprocmask(SIG_SETMASK, [], [pid 5561] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5562] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5561] <... futex resumed>) = 0 [pid 5561] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5562] memfd_create("syzkaller", 0) = 3 [pid 5562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5562] 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"..., 16777216) = 16777216 [pid 5562] munmap(0x7f3be0600000, 138412032) = 0 [pid 5562] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5562] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5562] ioctl(4, LOOP_CLR_FD) = 0 [pid 5562] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5562] close(4) = 0 [pid 5562] close(3) = 0 [pid 5562] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5561] <... futex resumed>) = 0 [pid 5562] <... futex resumed>) = 1 [pid 5561] exit_group(0 [pid 5562] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5561] <... exit_group resumed>) = ? [pid 5562] <... futex resumed>) = ? [pid 5562] +++ exited with 0 +++ [pid 5561] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5561, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5563 attached , child_tidptr=0x55557b776690) = 5563 [pid 5563] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5563] setpgid(0, 0) = 0 [pid 5563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5563] write(3, "1000", 4) = 4 [pid 5563] close(3) = 0 [pid 5563] write(1, "executing program\n", 18executing program ) = 18 [pid 5563] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5563] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5563] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5563] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5563] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5563] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5563] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5564 attached => {parent_tid=[5564]}, 88) = 5564 [pid 5564] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5564] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5563] rt_sigprocmask(SIG_SETMASK, [], [pid 5564] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5563] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5563] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5564] <... futex resumed>) = 0 [pid 5563] <... futex resumed>) = 1 [pid 5564] memfd_create("syzkaller", 0 [pid 5563] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5564] <... memfd_create resumed>) = 3 [pid 5564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5564] 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"..., 16777216) = 16777216 [pid 5564] munmap(0x7f3be0600000, 138412032) = 0 [pid 5564] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5564] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5564] ioctl(4, LOOP_CLR_FD) = 0 [pid 5564] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5564] close(4) = 0 [pid 5564] close(3) = 0 [pid 5564] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5563] <... futex resumed>) = 0 [pid 5564] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5563] exit_group(0 [pid 5564] <... futex resumed>) = ? [pid 5563] <... exit_group resumed>) = ? [pid 5564] +++ exited with 0 +++ [pid 5563] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5563, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5565 attached , child_tidptr=0x55557b776690) = 5565 [pid 5565] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5565] setpgid(0, 0) = 0 [pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5565] write(3, "1000", 4) = 4 [pid 5565] close(3) = 0 [pid 5565] write(1, "executing program\n", 18executing program ) = 18 [pid 5565] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5565] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5565] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5565] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5565] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5565] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5565] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5566 attached => {parent_tid=[5566]}, 88) = 5566 [pid 5565] rt_sigprocmask(SIG_SETMASK, [], [pid 5566] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5565] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5566] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5565] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5566] <... set_robust_list resumed>) = 0 [pid 5565] <... futex resumed>) = 0 [pid 5566] rt_sigprocmask(SIG_SETMASK, [], [pid 5565] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5566] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5566] memfd_create("syzkaller", 0) = 3 [pid 5566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5566] 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"..., 16777216) = 16777216 [pid 5566] munmap(0x7f3be0600000, 138412032) = 0 [pid 5566] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5566] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5566] ioctl(4, LOOP_CLR_FD) = 0 [pid 5566] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5566] close(4) = 0 [pid 5566] close(3) = 0 [pid 5566] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5565] <... futex resumed>) = 0 [pid 5566] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5565] exit_group(0 [pid 5566] <... futex resumed>) = ? [pid 5566] +++ exited with 0 +++ [pid 5565] <... exit_group resumed>) = ? [pid 5565] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5565, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5567 attached , child_tidptr=0x55557b776690) = 5567 [pid 5567] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5567] setpgid(0, 0) = 0 [pid 5567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5567] write(3, "1000", 4) = 4 [pid 5567] close(3) = 0 [pid 5567] write(1, "executing program\n", 18executing program ) = 18 [pid 5567] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5567] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5567] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5567] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5567] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5567] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5568 attached [pid 5568] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5568] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5568] rt_sigprocmask(SIG_SETMASK, [], [pid 5567] <... clone3 resumed> => {parent_tid=[5568]}, 88) = 5568 [pid 5568] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5567] rt_sigprocmask(SIG_SETMASK, [], [pid 5568] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5567] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5567] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] <... futex resumed>) = 0 [pid 5567] <... futex resumed>) = 1 [pid 5567] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5568] memfd_create("syzkaller", 0) = 3 [pid 5568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5568] 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"..., 16777216) = 16777216 [pid 5568] munmap(0x7f3be0600000, 138412032) = 0 [pid 5568] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5568] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5568] ioctl(4, LOOP_CLR_FD) = 0 [pid 5568] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5568] close(4) = 0 [pid 5568] close(3) = 0 [pid 5568] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5567] <... futex resumed>) = 0 [pid 5568] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5567] exit_group(0) = ? [pid 5568] <... futex resumed>) = ? [pid 5568] +++ exited with 0 +++ [pid 5567] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5567, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5569 attached , child_tidptr=0x55557b776690) = 5569 [pid 5569] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5569] setpgid(0, 0) = 0 [pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5569] write(3, "1000", 4) = 4 [pid 5569] close(3) = 0 [pid 5569] write(1, "executing program\n", 18executing program ) = 18 [pid 5569] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5569] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5569] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5569] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5569] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5569] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5570 attached [pid 5570] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5569] <... clone3 resumed> => {parent_tid=[5570]}, 88) = 5570 [pid 5570] <... rseq resumed>) = 0 [pid 5569] rt_sigprocmask(SIG_SETMASK, [], [pid 5570] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5569] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5570] <... set_robust_list resumed>) = 0 [pid 5569] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5570] rt_sigprocmask(SIG_SETMASK, [], [pid 5569] <... futex resumed>) = 0 [pid 5570] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5570] memfd_create("syzkaller", 0 [pid 5569] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5570] <... memfd_create resumed>) = 3 [pid 5570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5570] 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"..., 16777216) = 16777216 [pid 5570] munmap(0x7f3be0600000, 138412032) = 0 [pid 5570] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5570] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5570] ioctl(4, LOOP_CLR_FD) = 0 [pid 5570] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5570] close(4) = 0 [pid 5570] close(3) = 0 [pid 5570] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5569] <... futex resumed>) = 0 [pid 5570] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5569] exit_group(0) = ? [pid 5570] <... futex resumed>) = ? [pid 5570] +++ exited with 0 +++ [pid 5569] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5569, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5571 attached , child_tidptr=0x55557b776690) = 5571 [pid 5571] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5571] setpgid(0, 0) = 0 [pid 5571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5571] write(3, "1000", 4) = 4 [pid 5571] close(3) = 0 executing program [pid 5571] write(1, "executing program\n", 18) = 18 [pid 5571] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5571] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5571] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5571] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5571] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5571] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5572 attached [pid 5572] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5571] <... clone3 resumed> => {parent_tid=[5572]}, 88) = 5572 [pid 5572] <... rseq resumed>) = 0 [pid 5571] rt_sigprocmask(SIG_SETMASK, [], [pid 5572] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5571] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5572] <... set_robust_list resumed>) = 0 [pid 5571] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5572] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5571] <... futex resumed>) = 0 [pid 5572] memfd_create("syzkaller", 0 [pid 5571] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5572] <... memfd_create resumed>) = 3 [pid 5572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5572] 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"..., 16777216) = 16777216 [pid 5572] munmap(0x7f3be0600000, 138412032) = 0 [pid 5572] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5572] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5572] ioctl(4, LOOP_CLR_FD) = 0 [pid 5572] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5572] close(4) = 0 [pid 5572] close(3) = 0 [pid 5572] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5571] <... futex resumed>) = 0 [pid 5571] exit_group(0) = ? [pid 5572] +++ exited with 0 +++ [pid 5571] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5571, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5573 attached , child_tidptr=0x55557b776690) = 5573 [pid 5573] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5573] setpgid(0, 0) = 0 [pid 5573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5573] write(3, "1000", 4) = 4 [pid 5573] close(3) = 0 executing program [pid 5573] write(1, "executing program\n", 18) = 18 [pid 5573] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5573] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5573] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5573] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5573] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5573] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5573] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5574 attached [pid 5574] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5573] <... clone3 resumed> => {parent_tid=[5574]}, 88) = 5574 [pid 5574] <... rseq resumed>) = 0 [pid 5573] rt_sigprocmask(SIG_SETMASK, [], [pid 5574] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5573] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5574] <... set_robust_list resumed>) = 0 [pid 5573] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5574] rt_sigprocmask(SIG_SETMASK, [], [pid 5573] <... futex resumed>) = 0 [pid 5574] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5574] memfd_create("syzkaller", 0 [pid 5573] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5574] <... memfd_create resumed>) = 3 [pid 5574] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5574] 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"..., 16777216) = 16777216 [pid 5574] munmap(0x7f3be0600000, 138412032) = 0 [pid 5574] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5574] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5574] ioctl(4, LOOP_CLR_FD) = 0 [pid 5574] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5574] close(4) = 0 [pid 5574] close(3) = 0 [pid 5574] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5574] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5573] <... futex resumed>) = 0 [pid 5573] exit_group(0 [pid 5574] <... futex resumed>) = ? [pid 5573] <... exit_group resumed>) = ? [pid 5574] +++ exited with 0 +++ [pid 5573] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5573, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5575 attached , child_tidptr=0x55557b776690) = 5575 [pid 5575] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5575] setpgid(0, 0) = 0 [pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5575] write(3, "1000", 4) = 4 [pid 5575] close(3) = 0 [pid 5575] write(1, "executing program\n", 18executing program ) = 18 [pid 5575] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5575] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5575] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5575] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5575] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5575] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5575] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5576 attached [pid 5576] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5575] <... clone3 resumed> => {parent_tid=[5576]}, 88) = 5576 [pid 5576] <... rseq resumed>) = 0 [pid 5575] rt_sigprocmask(SIG_SETMASK, [], [pid 5576] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5575] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5576] <... set_robust_list resumed>) = 0 [pid 5575] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5575] <... futex resumed>) = 0 [pid 5576] memfd_create("syzkaller", 0 [pid 5575] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5576] <... memfd_create resumed>) = 3 [pid 5576] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5576] 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"..., 16777216) = 16777216 [pid 5576] munmap(0x7f3be0600000, 138412032) = 0 [pid 5576] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5576] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5576] ioctl(4, LOOP_CLR_FD) = 0 [pid 5576] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5576] close(4) = 0 [pid 5576] close(3) = 0 [pid 5576] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5575] <... futex resumed>) = 0 [pid 5575] exit_group(0 [pid 5576] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5575] <... exit_group resumed>) = ? [pid 5576] +++ exited with 0 +++ [pid 5575] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5575, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5577 attached , child_tidptr=0x55557b776690) = 5577 [pid 5577] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5577] setpgid(0, 0) = 0 [pid 5577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5577] write(3, "1000", 4) = 4 [pid 5577] close(3) = 0 [pid 5577] write(1, "executing program\n", 18executing program ) = 18 [pid 5577] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5577] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5577] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5577] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5577] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5577] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5577] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5578 attached [pid 5578] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5577] <... clone3 resumed> => {parent_tid=[5578]}, 88) = 5578 [pid 5578] <... rseq resumed>) = 0 [pid 5577] rt_sigprocmask(SIG_SETMASK, [], [pid 5578] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5577] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5578] <... set_robust_list resumed>) = 0 [pid 5578] rt_sigprocmask(SIG_SETMASK, [], [pid 5577] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5578] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5577] <... futex resumed>) = 0 [pid 5577] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5578] memfd_create("syzkaller", 0) = 3 [pid 5578] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5578] 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"..., 16777216) = 16777216 [pid 5578] munmap(0x7f3be0600000, 138412032) = 0 [pid 5578] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5578] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5578] ioctl(4, LOOP_CLR_FD) = 0 [pid 5578] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5578] close(4) = 0 [pid 5578] close(3) = 0 [pid 5578] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5578] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5577] <... futex resumed>) = 0 [pid 5577] exit_group(0 [pid 5578] <... futex resumed>) = ? [pid 5577] <... exit_group resumed>) = ? [pid 5578] +++ exited with 0 +++ [pid 5577] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5577, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5579 attached , child_tidptr=0x55557b776690) = 5579 [pid 5579] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5579] setpgid(0, 0) = 0 [pid 5579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5579] write(3, "1000", 4) = 4 [pid 5579] close(3) = 0 [pid 5579] write(1, "executing program\n", 18executing program ) = 18 [pid 5579] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5579] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5579] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5579] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5579] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5579] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5579] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5580 attached [pid 5580] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5579] <... clone3 resumed> => {parent_tid=[5580]}, 88) = 5580 [pid 5580] <... rseq resumed>) = 0 [pid 5579] rt_sigprocmask(SIG_SETMASK, [], [pid 5580] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5579] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5580] <... set_robust_list resumed>) = 0 [pid 5579] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5580] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5579] <... futex resumed>) = 0 [pid 5580] memfd_create("syzkaller", 0 [pid 5579] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5580] <... memfd_create resumed>) = 3 [pid 5580] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5580] 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"..., 16777216) = 16777216 [pid 5580] munmap(0x7f3be0600000, 138412032) = 0 [pid 5580] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5580] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5580] ioctl(4, LOOP_CLR_FD) = 0 [pid 5580] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5580] close(4) = 0 [pid 5580] close(3) = 0 [pid 5580] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5580] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5579] <... futex resumed>) = 0 [pid 5579] exit_group(0) = ? [pid 5580] <... futex resumed>) = ? [pid 5580] +++ exited with 0 +++ [pid 5579] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5579, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5581 attached , child_tidptr=0x55557b776690) = 5581 [pid 5581] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5581] setpgid(0, 0) = 0 [pid 5581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5581] write(3, "1000", 4) = 4 [pid 5581] close(3) = 0 executing program [pid 5581] write(1, "executing program\n", 18) = 18 [pid 5581] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5581] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5581] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5581] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5581] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5581] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5581] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5582 attached => {parent_tid=[5582]}, 88) = 5582 [pid 5582] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5581] rt_sigprocmask(SIG_SETMASK, [], [pid 5582] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5581] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5582] <... set_robust_list resumed>) = 0 [pid 5581] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5582] rt_sigprocmask(SIG_SETMASK, [], [pid 5581] <... futex resumed>) = 0 [pid 5582] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5581] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5582] memfd_create("syzkaller", 0) = 3 [pid 5582] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5582] 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"..., 16777216) = 16777216 [pid 5582] munmap(0x7f3be0600000, 138412032) = 0 [pid 5582] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5582] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5582] ioctl(4, LOOP_CLR_FD) = 0 [pid 5582] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5582] close(4) = 0 [pid 5582] close(3) = 0 [pid 5582] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5581] <... futex resumed>) = 0 [pid 5582] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5581] exit_group(0 [pid 5582] <... futex resumed>) = ? [pid 5582] +++ exited with 0 +++ [pid 5581] <... exit_group resumed>) = ? [pid 5581] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5581, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5583 attached , child_tidptr=0x55557b776690) = 5583 [pid 5583] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5583] setpgid(0, 0) = 0 [pid 5583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5583] write(3, "1000", 4) = 4 [pid 5583] close(3) = 0 [pid 5583] write(1, "executing program\n", 18executing program ) = 18 [pid 5583] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5583] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5583] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5583] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5583] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5583] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5584 attached => {parent_tid=[5584]}, 88) = 5584 [pid 5583] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5584] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5583] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5584] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5583] <... futex resumed>) = 0 [pid 5584] <... set_robust_list resumed>) = 0 [pid 5583] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5584] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5584] memfd_create("syzkaller", 0) = 3 [pid 5584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5584] 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"..., 16777216) = 16777216 [pid 5584] munmap(0x7f3be0600000, 138412032) = 0 [pid 5584] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5584] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5584] ioctl(4, LOOP_CLR_FD) = 0 [pid 5584] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5584] close(4) = 0 [pid 5584] close(3) = 0 [pid 5584] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5584] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5583] <... futex resumed>) = 0 [pid 5583] exit_group(0 [pid 5584] <... futex resumed>) = ? [pid 5583] <... exit_group resumed>) = ? [pid 5584] +++ exited with 0 +++ [pid 5583] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5583, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- 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 5585 attached , child_tidptr=0x55557b776690) = 5585 [pid 5585] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5585] setpgid(0, 0) = 0 [pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5585] write(3, "1000", 4) = 4 [pid 5585] close(3) = 0 executing program [pid 5585] write(1, "executing program\n", 18) = 18 [pid 5585] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5585] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5585] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5585] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5585] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5585] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5585] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5586 attached => {parent_tid=[5586]}, 88) = 5586 [pid 5586] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5585] rt_sigprocmask(SIG_SETMASK, [], [pid 5586] <... rseq resumed>) = 0 [pid 5585] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5586] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5585] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5586] <... set_robust_list resumed>) = 0 [pid 5585] <... futex resumed>) = 0 [pid 5586] rt_sigprocmask(SIG_SETMASK, [], [pid 5585] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5586] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5586] memfd_create("syzkaller", 0) = 3 [pid 5586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5586] 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"..., 16777216) = 16777216 [pid 5586] munmap(0x7f3be0600000, 138412032) = 0 [pid 5586] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5586] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5586] ioctl(4, LOOP_CLR_FD) = 0 [pid 5586] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5586] close(4) = 0 [pid 5586] close(3) = 0 [pid 5586] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5585] <... futex resumed>) = 0 [pid 5585] exit_group(0) = ? [pid 5586] <... futex resumed>) = ? [pid 5586] +++ exited with 0 +++ [pid 5585] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5585, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5587 attached , child_tidptr=0x55557b776690) = 5587 [pid 5587] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5587] setpgid(0, 0) = 0 [pid 5587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5587] write(3, "1000", 4) = 4 [pid 5587] close(3) = 0 executing program [pid 5587] write(1, "executing program\n", 18) = 18 [pid 5587] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5587] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5587] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5587] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5587] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5587] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5587] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5588 attached [pid 5588] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5587] <... clone3 resumed> => {parent_tid=[5588]}, 88) = 5588 [pid 5588] <... rseq resumed>) = 0 [pid 5587] rt_sigprocmask(SIG_SETMASK, [], [pid 5588] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5587] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5588] <... set_robust_list resumed>) = 0 [pid 5588] rt_sigprocmask(SIG_SETMASK, [], [pid 5587] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5587] <... futex resumed>) = 0 [pid 5588] memfd_create("syzkaller", 0 [pid 5587] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5588] <... memfd_create resumed>) = 3 [pid 5588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5588] 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"..., 16777216) = 16777216 [pid 5588] munmap(0x7f3be0600000, 138412032) = 0 [pid 5588] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5588] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5588] ioctl(4, LOOP_CLR_FD) = 0 [pid 5588] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5588] close(4) = 0 [pid 5588] close(3) = 0 [pid 5588] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5588] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5587] <... futex resumed>) = 0 [pid 5587] exit_group(0 [pid 5588] <... futex resumed>) = ? [pid 5587] <... exit_group resumed>) = ? [pid 5588] +++ exited with 0 +++ [pid 5587] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5587, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5589 attached , child_tidptr=0x55557b776690) = 5589 [pid 5589] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5589] setpgid(0, 0) = 0 [pid 5589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5589] write(3, "1000", 4) = 4 [pid 5589] close(3) = 0 [pid 5589] write(1, "executing program\n", 18executing program ) = 18 [pid 5589] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5589] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5589] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5589] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5589] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5589] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5589] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5590 attached [pid 5590] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5589] <... clone3 resumed> => {parent_tid=[5590]}, 88) = 5590 [pid 5589] rt_sigprocmask(SIG_SETMASK, [], [pid 5590] <... rseq resumed>) = 0 [pid 5589] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5590] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5589] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] <... set_robust_list resumed>) = 0 [pid 5590] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5589] <... futex resumed>) = 0 [pid 5590] memfd_create("syzkaller", 0 [pid 5589] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5590] <... memfd_create resumed>) = 3 [pid 5590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5590] 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"..., 16777216) = 16777216 [pid 5590] munmap(0x7f3be0600000, 138412032) = 0 [pid 5590] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5590] ioctl(4, LOOP_CLR_FD) = 0 [pid 5590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5590] close(4) = 0 [pid 5590] close(3) = 0 [pid 5590] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5590] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5589] <... futex resumed>) = 0 [pid 5589] exit_group(0) = ? [pid 5590] <... futex resumed>) = ? [pid 5590] +++ exited with 0 +++ [pid 5589] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5589, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5591 attached , child_tidptr=0x55557b776690) = 5591 [pid 5591] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5591] setpgid(0, 0) = 0 [pid 5591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5591] write(3, "1000", 4) = 4 [pid 5591] close(3) = 0 [pid 5591] write(1, "executing program\n", 18executing program ) = 18 [pid 5591] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5591] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5591] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5591] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5591] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5591] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5591] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5592 attached [pid 5592] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5591] <... clone3 resumed> => {parent_tid=[5592]}, 88) = 5592 [pid 5592] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5592] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5592] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5591] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5591] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5592] <... futex resumed>) = 0 [pid 5591] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5592] memfd_create("syzkaller", 0) = 3 [pid 5592] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5592] 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"..., 16777216) = 16777216 [pid 5592] munmap(0x7f3be0600000, 138412032) = 0 [pid 5592] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5592] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5592] ioctl(4, LOOP_CLR_FD) = 0 [pid 5592] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5592] close(4) = 0 [pid 5592] close(3) = 0 [pid 5592] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5591] <... futex resumed>) = 0 [pid 5591] exit_group(0) = ? [pid 5592] <... futex resumed>) = ? [pid 5592] +++ exited with 0 +++ [pid 5591] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5591, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5593 attached , child_tidptr=0x55557b776690) = 5593 [pid 5593] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5593] setpgid(0, 0) = 0 [pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5593] write(3, "1000", 4) = 4 [pid 5593] close(3) = 0 [pid 5593] write(1, "executing program\n", 18executing program ) = 18 [pid 5593] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5593] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5593] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5593] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5593] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5593] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5594 attached [pid 5594] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5593] <... clone3 resumed> => {parent_tid=[5594]}, 88) = 5594 [pid 5594] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5593] rt_sigprocmask(SIG_SETMASK, [], [pid 5594] <... set_robust_list resumed>) = 0 [pid 5593] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5594] rt_sigprocmask(SIG_SETMASK, [], [pid 5593] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5594] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5593] <... futex resumed>) = 0 [pid 5594] memfd_create("syzkaller", 0 [pid 5593] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5594] <... memfd_create resumed>) = 3 [pid 5594] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5594] 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"..., 16777216) = 16777216 [pid 5594] munmap(0x7f3be0600000, 138412032) = 0 [pid 5594] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5594] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5594] ioctl(4, LOOP_CLR_FD) = 0 [pid 5594] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5594] close(4) = 0 [pid 5594] close(3) = 0 [pid 5594] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5593] <... futex resumed>) = 0 [pid 5594] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5593] exit_group(0) = ? [pid 5594] <... futex resumed>) = ? [pid 5594] +++ exited with 0 +++ [pid 5593] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5593, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5595 attached , child_tidptr=0x55557b776690) = 5595 [pid 5595] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5595] setpgid(0, 0) = 0 [pid 5595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5595] write(3, "1000", 4) = 4 [pid 5595] close(3) = 0 executing program [pid 5595] write(1, "executing program\n", 18) = 18 [pid 5595] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5595] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5595] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5595] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5595] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5595] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5595] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5596 attached [pid 5596] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5595] <... clone3 resumed> => {parent_tid=[5596]}, 88) = 5596 [pid 5596] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5595] rt_sigprocmask(SIG_SETMASK, [], [pid 5596] rt_sigprocmask(SIG_SETMASK, [], [pid 5595] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5596] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5595] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5596] memfd_create("syzkaller", 0 [pid 5595] <... futex resumed>) = 0 [pid 5595] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5596] <... memfd_create resumed>) = 3 [pid 5596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5596] 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"..., 16777216) = 16777216 [pid 5596] munmap(0x7f3be0600000, 138412032) = 0 [pid 5596] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5596] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5596] ioctl(4, LOOP_CLR_FD) = 0 [pid 5596] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5596] close(4) = 0 [pid 5596] close(3) = 0 [pid 5596] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5595] <... futex resumed>) = 0 [pid 5595] exit_group(0) = ? [pid 5596] <... futex resumed>) = ? [pid 5596] +++ exited with 0 +++ [pid 5595] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5595, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5597 attached , child_tidptr=0x55557b776690) = 5597 [pid 5597] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5597] setpgid(0, 0) = 0 [pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5597] write(3, "1000", 4) = 4 [pid 5597] close(3) = 0 [pid 5597] write(1, "executing program\n", 18executing program ) = 18 [pid 5597] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5597] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5597] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5597] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5597] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5597] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5598 attached [pid 5598] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5597] <... clone3 resumed> => {parent_tid=[5598]}, 88) = 5598 [pid 5598] <... rseq resumed>) = 0 [pid 5597] rt_sigprocmask(SIG_SETMASK, [], [pid 5598] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5597] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5598] <... set_robust_list resumed>) = 0 [pid 5597] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5597] <... futex resumed>) = 0 [pid 5598] memfd_create("syzkaller", 0 [pid 5597] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5598] <... memfd_create resumed>) = 3 [pid 5598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5598] 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"..., 16777216) = 16777216 [pid 5598] munmap(0x7f3be0600000, 138412032) = 0 [pid 5598] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5598] ioctl(4, LOOP_CLR_FD) = 0 [pid 5598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5598] close(4) = 0 [pid 5598] close(3) = 0 [pid 5598] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5597] <... futex resumed>) = 0 [pid 5598] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5597] exit_group(0 [pid 5598] <... futex resumed>) = ? [pid 5597] <... exit_group resumed>) = ? [pid 5598] +++ exited with 0 +++ [pid 5597] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5597, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5599 attached , child_tidptr=0x55557b776690) = 5599 [pid 5599] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5599] setpgid(0, 0) = 0 [pid 5599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5599] write(3, "1000", 4) = 4 [pid 5599] close(3) = 0 [pid 5599] write(1, "executing program\n", 18executing program ) = 18 [pid 5599] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5599] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5599] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5599] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5599] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5599] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5599] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5600 attached [pid 5600] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5599] <... clone3 resumed> => {parent_tid=[5600]}, 88) = 5600 [pid 5600] <... rseq resumed>) = 0 [pid 5600] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5599] rt_sigprocmask(SIG_SETMASK, [], [pid 5600] <... set_robust_list resumed>) = 0 [pid 5599] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], [pid 5599] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5600] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5599] <... futex resumed>) = 0 [pid 5600] memfd_create("syzkaller", 0 [pid 5599] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5600] <... memfd_create resumed>) = 3 [pid 5600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5600] 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"..., 16777216) = 16777216 [pid 5600] munmap(0x7f3be0600000, 138412032) = 0 [pid 5600] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5600] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5600] ioctl(4, LOOP_CLR_FD) = 0 [pid 5600] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5600] close(4) = 0 [pid 5600] close(3) = 0 [pid 5600] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5599] <... futex resumed>) = 0 [pid 5600] <... futex resumed>) = 1 [pid 5599] exit_group(0 [pid 5600] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5599] <... exit_group resumed>) = ? [pid 5600] +++ exited with 0 +++ [pid 5599] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5599, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5601 attached , child_tidptr=0x55557b776690) = 5601 [pid 5601] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5601] setpgid(0, 0) = 0 [pid 5601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5601] write(3, "1000", 4) = 4 [pid 5601] close(3) = 0 executing program [pid 5601] write(1, "executing program\n", 18) = 18 [pid 5601] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5601] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5601] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5601] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5601] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5601] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5602 attached [pid 5602] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5601] <... clone3 resumed> => {parent_tid=[5602]}, 88) = 5602 [pid 5602] <... rseq resumed>) = 0 [pid 5601] rt_sigprocmask(SIG_SETMASK, [], [pid 5602] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5601] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5602] <... set_robust_list resumed>) = 0 [pid 5601] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5601] <... futex resumed>) = 0 [pid 5602] memfd_create("syzkaller", 0 [pid 5601] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5602] <... memfd_create resumed>) = 3 [pid 5602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5602] 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"..., 16777216) = 16777216 [pid 5602] munmap(0x7f3be0600000, 138412032) = 0 [pid 5602] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5602] ioctl(4, LOOP_CLR_FD) = 0 [pid 5602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5602] close(4) = 0 [pid 5602] close(3) = 0 [pid 5602] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5601] <... futex resumed>) = 0 [pid 5601] exit_group(0 [pid 5602] <... futex resumed>) = ? [pid 5602] +++ exited with 0 +++ [pid 5601] <... exit_group resumed>) = ? [pid 5601] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5601, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5603 attached , child_tidptr=0x55557b776690) = 5603 [pid 5603] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5603] setpgid(0, 0) = 0 [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5603] write(3, "1000", 4) = 4 [pid 5603] close(3) = 0 [pid 5603] write(1, "executing program\n", 18executing program ) = 18 [pid 5603] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5603] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5603] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5603] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5603] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5603] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5604 attached [pid 5604] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5603] <... clone3 resumed> => {parent_tid=[5604]}, 88) = 5604 [pid 5604] <... rseq resumed>) = 0 [pid 5604] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5603] rt_sigprocmask(SIG_SETMASK, [], [pid 5604] <... set_robust_list resumed>) = 0 [pid 5603] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5604] rt_sigprocmask(SIG_SETMASK, [], [pid 5603] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5604] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5603] <... futex resumed>) = 0 [pid 5603] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5604] memfd_create("syzkaller", 0) = 3 [pid 5604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5604] 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"..., 16777216) = 16777216 [pid 5604] munmap(0x7f3be0600000, 138412032) = 0 [pid 5604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5604] ioctl(4, LOOP_CLR_FD) = 0 [pid 5604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5604] close(4) = 0 [pid 5604] close(3) = 0 [pid 5604] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5604] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5603] <... futex resumed>) = 0 [pid 5603] exit_group(0 [pid 5604] <... futex resumed>) = ? [pid 5603] <... exit_group resumed>) = ? [pid 5604] +++ exited with 0 +++ [pid 5603] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5603, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5605 attached , child_tidptr=0x55557b776690) = 5605 [pid 5605] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5605] setpgid(0, 0) = 0 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5605] write(3, "1000", 4) = 4 [pid 5605] close(3) = 0 [pid 5605] write(1, "executing program\n", 18) = 18 executing program [pid 5605] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5605] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5605] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5605] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5605] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5605] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5605] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5606 attached [pid 5606] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5605] <... clone3 resumed> => {parent_tid=[5606]}, 88) = 5606 [pid 5606] <... rseq resumed>) = 0 [pid 5605] rt_sigprocmask(SIG_SETMASK, [], [pid 5606] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5605] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5606] <... set_robust_list resumed>) = 0 [pid 5605] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] rt_sigprocmask(SIG_SETMASK, [], [pid 5605] <... futex resumed>) = 0 [pid 5606] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5605] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5606] memfd_create("syzkaller", 0) = 3 [pid 5606] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5606] 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"..., 16777216) = 16777216 [pid 5606] munmap(0x7f3be0600000, 138412032) = 0 [pid 5606] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5606] ioctl(4, LOOP_CLR_FD) = 0 [pid 5606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5606] close(4) = 0 [pid 5606] close(3) = 0 [pid 5606] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5606] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5605] <... futex resumed>) = 0 [pid 5605] exit_group(0 [pid 5606] <... futex resumed>) = ? [pid 5605] <... exit_group resumed>) = ? [pid 5606] +++ exited with 0 +++ [pid 5605] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5607 attached , child_tidptr=0x55557b776690) = 5607 [pid 5607] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5607] setpgid(0, 0) = 0 [pid 5607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5607] write(3, "1000", 4) = 4 [pid 5607] close(3) = 0 [pid 5607] write(1, "executing program\n", 18executing program ) = 18 [pid 5607] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5607] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5607] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5607] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5607] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5607] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5608 attached => {parent_tid=[5608]}, 88) = 5608 [pid 5607] rt_sigprocmask(SIG_SETMASK, [], [pid 5608] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5607] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5608] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5607] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] <... set_robust_list resumed>) = 0 [pid 5607] <... futex resumed>) = 0 [pid 5608] rt_sigprocmask(SIG_SETMASK, [], [pid 5607] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5608] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5608] memfd_create("syzkaller", 0) = 3 [pid 5608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5608] 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"..., 16777216) = 16777216 [pid 5608] munmap(0x7f3be0600000, 138412032) = 0 [pid 5608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5608] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5608] ioctl(4, LOOP_CLR_FD) = 0 [pid 5608] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5608] close(4) = 0 [pid 5608] close(3) = 0 [pid 5608] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5607] <... futex resumed>) = 0 [pid 5608] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5607] exit_group(0 [pid 5608] <... futex resumed>) = ? [pid 5607] <... exit_group resumed>) = ? [pid 5608] +++ exited with 0 +++ [pid 5607] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5607, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- 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 5609 attached , child_tidptr=0x55557b776690) = 5609 [pid 5609] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5609] setpgid(0, 0) = 0 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5609] write(3, "1000", 4) = 4 [pid 5609] close(3) = 0 [pid 5609] write(1, "executing program\n", 18executing program ) = 18 [pid 5609] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5609] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5609] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5609] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5609] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5609] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5609] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5610 attached [pid 5610] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5609] <... clone3 resumed> => {parent_tid=[5610]}, 88) = 5610 [pid 5610] <... rseq resumed>) = 0 [pid 5609] rt_sigprocmask(SIG_SETMASK, [], [pid 5610] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5609] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5610] <... set_robust_list resumed>) = 0 [pid 5609] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] rt_sigprocmask(SIG_SETMASK, [], [pid 5609] <... futex resumed>) = 0 [pid 5610] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5609] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5610] memfd_create("syzkaller", 0) = 3 [pid 5610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5610] 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"..., 16777216) = 16777216 [pid 5610] munmap(0x7f3be0600000, 138412032) = 0 [pid 5610] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5610] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5610] ioctl(4, LOOP_CLR_FD) = 0 [pid 5610] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5610] close(4) = 0 [pid 5610] close(3) = 0 [pid 5610] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5609] <... futex resumed>) = 0 [pid 5610] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5609] exit_group(0 [pid 5610] <... futex resumed>) = ? [pid 5609] <... exit_group resumed>) = ? [pid 5610] +++ exited with 0 +++ [pid 5609] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5609, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5611 attached , child_tidptr=0x55557b776690) = 5611 [pid 5611] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5611] setpgid(0, 0) = 0 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5611] write(3, "1000", 4) = 4 [pid 5611] close(3) = 0 [pid 5611] write(1, "executing program\n", 18executing program ) = 18 [pid 5611] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5611] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5611] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5611] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5611] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5611] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5611] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5612 attached => {parent_tid=[5612]}, 88) = 5612 [pid 5612] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5612] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5612] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5611] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5611] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5612] <... futex resumed>) = 0 [pid 5611] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5612] memfd_create("syzkaller", 0) = 3 [pid 5612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5612] 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"..., 16777216) = 16777216 [pid 5612] munmap(0x7f3be0600000, 138412032) = 0 [pid 5612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5612] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5612] ioctl(4, LOOP_CLR_FD) = 0 [pid 5612] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5612] close(4) = 0 [pid 5612] close(3) = 0 [pid 5612] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] <... futex resumed>) = 0 [pid 5611] exit_group(0) = ? [pid 5612] <... futex resumed>) = ? [pid 5612] +++ exited with 0 +++ [pid 5611] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5611, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5613 attached , child_tidptr=0x55557b776690) = 5613 [pid 5613] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5613] setpgid(0, 0) = 0 [pid 5613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5613] write(3, "1000", 4) = 4 [pid 5613] close(3) = 0 [pid 5613] write(1, "executing program\n", 18executing program ) = 18 [pid 5613] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5613] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5613] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5613] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5613] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5613] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5614 attached [pid 5614] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5613] <... clone3 resumed> => {parent_tid=[5614]}, 88) = 5614 [pid 5614] <... rseq resumed>) = 0 [pid 5613] rt_sigprocmask(SIG_SETMASK, [], [pid 5614] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5613] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5614] <... set_robust_list resumed>) = 0 [pid 5613] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5613] <... futex resumed>) = 0 [pid 5614] memfd_create("syzkaller", 0 [pid 5613] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5614] <... memfd_create resumed>) = 3 [pid 5614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5614] 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"..., 16777216) = 16777216 [pid 5614] munmap(0x7f3be0600000, 138412032) = 0 [pid 5614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5614] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5614] ioctl(4, LOOP_CLR_FD) = 0 [pid 5614] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5614] close(4) = 0 [pid 5614] close(3) = 0 [pid 5614] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5613] <... futex resumed>) = 0 [pid 5614] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5613] exit_group(0 [pid 5614] <... futex resumed>) = ? [pid 5613] <... exit_group resumed>) = ? [pid 5614] +++ exited with 0 +++ [pid 5613] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5613, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5615 attached , child_tidptr=0x55557b776690) = 5615 [pid 5615] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5615] setpgid(0, 0) = 0 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5615] write(3, "1000", 4) = 4 [pid 5615] close(3executing program ) = 0 [pid 5615] write(1, "executing program\n", 18) = 18 [pid 5615] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5615] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5615] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5615] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5615] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5615] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5616 attached [pid 5616] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5616] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5616] rt_sigprocmask(SIG_SETMASK, [], [pid 5615] <... clone3 resumed> => {parent_tid=[5616]}, 88) = 5616 [pid 5616] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5615] rt_sigprocmask(SIG_SETMASK, [], [pid 5616] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5615] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5615] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5616] <... futex resumed>) = 0 [pid 5615] <... futex resumed>) = 1 [pid 5616] memfd_create("syzkaller", 0 [pid 5615] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5616] <... memfd_create resumed>) = 3 [pid 5616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5616] 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"..., 16777216) = 16777216 [pid 5616] munmap(0x7f3be0600000, 138412032) = 0 [pid 5616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5616] ioctl(4, LOOP_CLR_FD) = 0 [pid 5616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5616] close(4) = 0 [pid 5616] close(3) = 0 [pid 5616] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5616] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5615] <... futex resumed>) = 0 [pid 5615] exit_group(0 [pid 5616] <... futex resumed>) = ? [pid 5615] <... exit_group resumed>) = ? [pid 5616] +++ exited with 0 +++ [pid 5615] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5615, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5617 attached [pid 5617] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 5617 [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5617] setpgid(0, 0) = 0 [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5617] write(3, "1000", 4) = 4 [pid 5617] close(3) = 0 executing program [pid 5617] write(1, "executing program\n", 18) = 18 [pid 5617] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5617] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5617] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5617] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5617] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5617] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5617] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5618 attached [pid 5618] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5617] <... clone3 resumed> => {parent_tid=[5618]}, 88) = 5618 [pid 5618] <... rseq resumed>) = 0 [pid 5617] rt_sigprocmask(SIG_SETMASK, [], [pid 5618] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5617] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5618] <... set_robust_list resumed>) = 0 [pid 5617] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5617] <... futex resumed>) = 0 [pid 5618] memfd_create("syzkaller", 0 [pid 5617] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5618] <... memfd_create resumed>) = 3 [pid 5618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5618] 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"..., 16777216) = 16777216 [pid 5618] munmap(0x7f3be0600000, 138412032) = 0 [pid 5618] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5618] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5618] ioctl(4, LOOP_CLR_FD) = 0 [pid 5618] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5618] close(4) = 0 [pid 5618] close(3) = 0 [pid 5618] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5617] <... futex resumed>) = 0 [pid 5618] <... futex resumed>) = 1 [pid 5617] exit_group(0 [pid 5618] +++ exited with 0 +++ [pid 5617] <... exit_group resumed>) = ? [pid 5617] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5617, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5619 attached , child_tidptr=0x55557b776690) = 5619 [pid 5619] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5619] setpgid(0, 0) = 0 [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5619] write(3, "1000", 4) = 4 [pid 5619] close(3) = 0 executing program [pid 5619] write(1, "executing program\n", 18) = 18 [pid 5619] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5619] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5619] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5619] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5619] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5619] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5620 attached => {parent_tid=[5620]}, 88) = 5620 [pid 5619] rt_sigprocmask(SIG_SETMASK, [], [pid 5620] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5619] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5619] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5619] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5620] <... rseq resumed>) = 0 [pid 5620] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5620] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5620] memfd_create("syzkaller", 0) = 3 [pid 5620] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5620] 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"..., 16777216) = 16777216 [pid 5620] munmap(0x7f3be0600000, 138412032) = 0 [pid 5620] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5620] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5620] ioctl(4, LOOP_CLR_FD) = 0 [pid 5620] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5620] close(4) = 0 [pid 5620] close(3) = 0 [pid 5620] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5619] <... futex resumed>) = 0 [pid 5620] <... futex resumed>) = 1 [pid 5619] exit_group(0 [pid 5620] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5619] <... exit_group resumed>) = ? [pid 5620] +++ exited with 0 +++ [pid 5619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5621 attached , child_tidptr=0x55557b776690) = 5621 [pid 5621] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5621] setpgid(0, 0) = 0 [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5621] write(3, "1000", 4) = 4 [pid 5621] close(3) = 0 [pid 5621] write(1, "executing program\n", 18executing program ) = 18 [pid 5621] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5621] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5621] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5621] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5621] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5621] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5622 attached [pid 5622] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5621] <... clone3 resumed> => {parent_tid=[5622]}, 88) = 5622 [pid 5622] <... rseq resumed>) = 0 [pid 5621] rt_sigprocmask(SIG_SETMASK, [], [pid 5622] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5621] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5622] <... set_robust_list resumed>) = 0 [pid 5621] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5621] <... futex resumed>) = 0 [pid 5622] memfd_create("syzkaller", 0 [pid 5621] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5622] <... memfd_create resumed>) = 3 [pid 5622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5622] 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"..., 16777216) = 16777216 [pid 5622] munmap(0x7f3be0600000, 138412032) = 0 [pid 5622] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5622] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5622] ioctl(4, LOOP_CLR_FD) = 0 [pid 5622] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5622] close(4) = 0 [pid 5622] close(3) = 0 [pid 5622] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5621] <... futex resumed>) = 0 [pid 5622] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5621] exit_group(0) = ? [pid 5622] <... futex resumed>) = ? [pid 5622] +++ exited with 0 +++ [pid 5621] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5623 attached , child_tidptr=0x55557b776690) = 5623 [pid 5623] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5623] setpgid(0, 0) = 0 [pid 5623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "1000", 4) = 4 [pid 5623] close(3) = 0 [pid 5623] write(1, "executing program\n", 18executing program ) = 18 [pid 5623] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5623] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5623] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5623] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5623] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5623] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5623] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5624 attached [pid 5624] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5623] <... clone3 resumed> => {parent_tid=[5624]}, 88) = 5624 [pid 5624] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5623] rt_sigprocmask(SIG_SETMASK, [], [pid 5624] <... set_robust_list resumed>) = 0 [pid 5623] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5624] rt_sigprocmask(SIG_SETMASK, [], [pid 5623] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5624] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5623] <... futex resumed>) = 0 [pid 5624] memfd_create("syzkaller", 0 [pid 5623] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5624] <... memfd_create resumed>) = 3 [pid 5624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5624] 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"..., 16777216) = 16777216 [pid 5624] munmap(0x7f3be0600000, 138412032) = 0 [pid 5624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5624] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5624] ioctl(4, LOOP_CLR_FD) = 0 [pid 5624] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5624] close(4) = 0 [pid 5624] close(3) = 0 [pid 5624] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5623] <... futex resumed>) = 0 [pid 5623] exit_group(0) = ? [pid 5624] <... futex resumed>) = ? [pid 5624] +++ exited with 0 +++ [pid 5623] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5623, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5625 attached , child_tidptr=0x55557b776690) = 5625 [pid 5625] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5625] setpgid(0, 0) = 0 [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1000", 4) = 4 [pid 5625] close(3) = 0 [pid 5625] write(1, "executing program\n", 18executing program ) = 18 [pid 5625] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5625] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5625] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5625] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5625] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5625] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5626 attached [pid 5626] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5625] <... clone3 resumed> => {parent_tid=[5626]}, 88) = 5626 [pid 5626] <... rseq resumed>) = 0 [pid 5625] rt_sigprocmask(SIG_SETMASK, [], [pid 5626] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5625] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5626] rt_sigprocmask(SIG_SETMASK, [], [pid 5625] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5626] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5625] <... futex resumed>) = 0 [pid 5625] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5626] memfd_create("syzkaller", 0) = 3 [pid 5626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5626] 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"..., 16777216) = 16777216 [pid 5626] munmap(0x7f3be0600000, 138412032) = 0 [pid 5626] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5626] ioctl(4, LOOP_CLR_FD) = 0 [pid 5626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5626] close(4) = 0 [pid 5626] close(3) = 0 [pid 5626] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5625] <... futex resumed>) = 0 [pid 5626] <... futex resumed>) = 1 [pid 5625] exit_group(0 [pid 5626] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5625] <... exit_group resumed>) = ? [pid 5626] +++ exited with 0 +++ [pid 5625] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5625, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5627 attached , child_tidptr=0x55557b776690) = 5627 [pid 5627] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5627] setpgid(0, 0) = 0 [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5627] write(3, "1000", 4) = 4 [pid 5627] close(3) = 0 [pid 5627] write(1, "executing program\n", 18executing program ) = 18 [pid 5627] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5627] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5627] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5627] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5627] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5627] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5627] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5628 attached [pid 5628] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5627] <... clone3 resumed> => {parent_tid=[5628]}, 88) = 5628 [pid 5628] <... rseq resumed>) = 0 [pid 5628] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5628] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5627] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5627] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5627] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5628] memfd_create("syzkaller", 0) = 3 [pid 5628] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5628] 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"..., 16777216) = 16777216 [pid 5628] munmap(0x7f3be0600000, 138412032) = 0 [pid 5628] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5628] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5628] ioctl(4, LOOP_CLR_FD) = 0 [pid 5628] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5628] close(4) = 0 [pid 5628] close(3) = 0 [pid 5628] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5627] <... futex resumed>) = 0 [pid 5628] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5627] exit_group(0 [pid 5628] <... futex resumed>) = ? [pid 5628] +++ exited with 0 +++ [pid 5627] <... exit_group resumed>) = ? [pid 5627] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5627, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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=0x55557b776690) = 5629 ./strace-static-x86_64: Process 5629 attached [pid 5629] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5629] setpgid(0, 0) = 0 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5629] write(3, "1000", 4) = 4 [pid 5629] close(3) = 0 [pid 5629] write(1, "executing program\n", 18executing program ) = 18 [pid 5629] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5629] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5629] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5629] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5629] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5629] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5630 attached [pid 5630] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5630] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5630] rt_sigprocmask(SIG_SETMASK, [], [pid 5629] <... clone3 resumed> => {parent_tid=[5630]}, 88) = 5630 [pid 5630] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5629] rt_sigprocmask(SIG_SETMASK, [], [pid 5630] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5629] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5629] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5630] <... futex resumed>) = 0 [pid 5629] <... futex resumed>) = 1 [pid 5629] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5630] memfd_create("syzkaller", 0) = 3 [pid 5630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5630] 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"..., 16777216) = 16777216 [pid 5630] munmap(0x7f3be0600000, 138412032) = 0 [pid 5630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5630] ioctl(4, LOOP_CLR_FD) = 0 [pid 5630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5630] close(4) = 0 [pid 5630] close(3) = 0 [pid 5630] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5630] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5629] <... futex resumed>) = 0 [pid 5629] exit_group(0) = ? [pid 5630] <... futex resumed>) = ? [pid 5630] +++ exited with 0 +++ [pid 5629] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5629, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 5631 attached , child_tidptr=0x55557b776690) = 5631 [pid 5631] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5631] setpgid(0, 0) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5631] write(3, "1000", 4) = 4 [pid 5631] close(3) = 0 [pid 5631] write(1, "executing program\n", 18executing program ) = 18 [pid 5631] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5631] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5631] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5631] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5631] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5631] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5632 attached => {parent_tid=[5632]}, 88) = 5632 [pid 5631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5631] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5632] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5631] <... futex resumed>) = 0 [pid 5632] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5631] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5632] <... set_robust_list resumed>) = 0 [pid 5632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5632] memfd_create("syzkaller", 0) = 3 [pid 5632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5632] 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"..., 16777216) = 16777216 [pid 5632] munmap(0x7f3be0600000, 138412032) = 0 [pid 5632] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5632] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5632] ioctl(4, LOOP_CLR_FD) = 0 [pid 5632] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5632] close(4) = 0 [pid 5632] close(3) = 0 [pid 5632] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5631] <... futex resumed>) = 0 [pid 5632] <... futex resumed>) = 1 [pid 5631] exit_group(0 [pid 5632] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5631] <... exit_group resumed>) = ? [pid 5632] +++ exited with 0 +++ [pid 5631] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5633 attached , child_tidptr=0x55557b776690) = 5633 [pid 5633] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5633] setpgid(0, 0) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5633] write(3, "1000", 4) = 4 [pid 5633] close(3) = 0 executing program [pid 5633] write(1, "executing program\n", 18) = 18 [pid 5633] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5633] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5633] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5633] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5633] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5634 attached [pid 5634] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5633] <... clone3 resumed> => {parent_tid=[5634]}, 88) = 5634 [pid 5634] <... rseq resumed>) = 0 [pid 5633] rt_sigprocmask(SIG_SETMASK, [], [pid 5634] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5633] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] rt_sigprocmask(SIG_SETMASK, [], [pid 5633] <... futex resumed>) = 0 [pid 5634] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5633] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5634] memfd_create("syzkaller", 0) = 3 [pid 5634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5634] 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"..., 16777216) = 16777216 [pid 5634] munmap(0x7f3be0600000, 138412032) = 0 [pid 5634] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5634] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5634] ioctl(4, LOOP_CLR_FD) = 0 [pid 5634] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5634] close(4) = 0 [pid 5634] close(3) = 0 [pid 5634] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5634] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5633] <... futex resumed>) = 0 [pid 5633] exit_group(0 [pid 5634] <... futex resumed>) = ? [pid 5633] <... exit_group resumed>) = ? [pid 5634] +++ exited with 0 +++ [pid 5633] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5635 attached , child_tidptr=0x55557b776690) = 5635 [pid 5635] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5635] setpgid(0, 0) = 0 [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5635] write(3, "1000", 4) = 4 [pid 5635] close(3) = 0 [pid 5635] write(1, "executing program\n", 18executing program ) = 18 [pid 5635] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5635] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5635] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5635] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5635] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5635] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5636 attached [pid 5636] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5635] <... clone3 resumed> => {parent_tid=[5636]}, 88) = 5636 [pid 5636] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5635] rt_sigprocmask(SIG_SETMASK, [], [pid 5636] <... set_robust_list resumed>) = 0 [pid 5635] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5636] rt_sigprocmask(SIG_SETMASK, [], [pid 5635] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5635] <... futex resumed>) = 0 [pid 5636] memfd_create("syzkaller", 0 [pid 5635] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5636] <... memfd_create resumed>) = 3 [pid 5636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5636] 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"..., 16777216) = 16777216 [pid 5636] munmap(0x7f3be0600000, 138412032) = 0 [pid 5636] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5636] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5636] ioctl(4, LOOP_CLR_FD) = 0 [pid 5636] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5636] close(4) = 0 [pid 5636] close(3) = 0 [pid 5636] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5636] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] <... futex resumed>) = 0 [pid 5635] exit_group(0 [pid 5636] <... futex resumed>) = ? [pid 5635] <... exit_group resumed>) = ? [pid 5636] +++ exited with 0 +++ [pid 5635] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5635, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 5637 attached , child_tidptr=0x55557b776690) = 5637 [pid 5637] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5637] setpgid(0, 0) = 0 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5637] write(3, "1000", 4) = 4 [pid 5637] close(3) = 0 [pid 5637] write(1, "executing program\n", 18executing program ) = 18 [pid 5637] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5637] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5637] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5637] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5637] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5637] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5638 attached [pid 5638] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5637] <... clone3 resumed> => {parent_tid=[5638]}, 88) = 5638 [pid 5638] <... rseq resumed>) = 0 [pid 5637] rt_sigprocmask(SIG_SETMASK, [], [pid 5638] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5637] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5638] <... set_robust_list resumed>) = 0 [pid 5638] rt_sigprocmask(SIG_SETMASK, [], [pid 5637] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5638] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5637] <... futex resumed>) = 0 [pid 5637] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5638] memfd_create("syzkaller", 0) = 3 [pid 5638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5638] 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"..., 16777216) = 16777216 [pid 5638] munmap(0x7f3be0600000, 138412032) = 0 [pid 5638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5638] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5638] ioctl(4, LOOP_CLR_FD) = 0 [pid 5638] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5638] close(4) = 0 [pid 5638] close(3) = 0 [pid 5638] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5638] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5637] <... futex resumed>) = 0 [pid 5637] exit_group(0 [pid 5638] <... futex resumed>) = ? [pid 5637] <... exit_group resumed>) = ? [pid 5638] +++ exited with 0 +++ [pid 5637] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5637, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5639 attached , child_tidptr=0x55557b776690) = 5639 [pid 5639] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5639] setpgid(0, 0) = 0 [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5639] write(3, "1000", 4) = 4 [pid 5639] close(3) = 0 [pid 5639] write(1, "executing program\n", 18executing program ) = 18 [pid 5639] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5639] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5639] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5639] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5639] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5639] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5639] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5640 attached => {parent_tid=[5640]}, 88) = 5640 [pid 5640] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5639] rt_sigprocmask(SIG_SETMASK, [], [pid 5640] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5639] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5640] <... set_robust_list resumed>) = 0 [pid 5639] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5640] rt_sigprocmask(SIG_SETMASK, [], [pid 5639] <... futex resumed>) = 0 [pid 5640] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5639] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5640] memfd_create("syzkaller", 0) = 3 [pid 5640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5640] 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"..., 16777216) = 16777216 [pid 5640] munmap(0x7f3be0600000, 138412032) = 0 [pid 5640] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5640] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5640] ioctl(4, LOOP_CLR_FD) = 0 [pid 5640] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5640] close(4) = 0 [pid 5640] close(3) = 0 [pid 5640] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5639] <... futex resumed>) = 0 [pid 5639] exit_group(0 [pid 5640] <... futex resumed>) = ? [pid 5639] <... exit_group resumed>) = ? [pid 5640] +++ exited with 0 +++ [pid 5639] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5641 attached , child_tidptr=0x55557b776690) = 5641 [pid 5641] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5641] setpgid(0, 0) = 0 [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5641] write(3, "1000", 4) = 4 [pid 5641] close(3) = 0 [pid 5641] write(1, "executing program\n", 18executing program ) = 18 [pid 5641] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5641] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5641] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5641] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5641] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5642 attached [pid 5642] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5641] <... clone3 resumed> => {parent_tid=[5642]}, 88) = 5642 [pid 5642] <... rseq resumed>) = 0 [pid 5641] rt_sigprocmask(SIG_SETMASK, [], [pid 5642] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5641] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5642] <... set_robust_list resumed>) = 0 [pid 5641] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5641] <... futex resumed>) = 0 [pid 5642] memfd_create("syzkaller", 0 [pid 5641] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5642] <... memfd_create resumed>) = 3 [pid 5642] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5642] 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"..., 16777216) = 16777216 [pid 5642] munmap(0x7f3be0600000, 138412032) = 0 [pid 5642] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5642] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5642] ioctl(4, LOOP_CLR_FD) = 0 [pid 5642] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5642] close(4) = 0 [pid 5642] close(3) = 0 [pid 5642] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5641] <... futex resumed>) = 0 [pid 5641] exit_group(0 [pid 5642] <... futex resumed>) = ? [pid 5641] <... exit_group resumed>) = ? [pid 5642] +++ exited with 0 +++ [pid 5641] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5641, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5643 attached , child_tidptr=0x55557b776690) = 5643 [pid 5643] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5643] setpgid(0, 0) = 0 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5643] write(3, "1000", 4) = 4 [pid 5643] close(3) = 0 [pid 5643] write(1, "executing program\n", 18executing program ) = 18 [pid 5643] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5643] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5643] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5643] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5643] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5643] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5644 attached [pid 5644] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5643] <... clone3 resumed> => {parent_tid=[5644]}, 88) = 5644 [pid 5644] <... rseq resumed>) = 0 [pid 5643] rt_sigprocmask(SIG_SETMASK, [], [pid 5644] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5643] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5643] <... futex resumed>) = 0 [pid 5644] memfd_create("syzkaller", 0 [pid 5643] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5644] <... memfd_create resumed>) = 3 [pid 5644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5644] 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"..., 16777216) = 16777216 [pid 5644] munmap(0x7f3be0600000, 138412032) = 0 [pid 5644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5644] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5644] ioctl(4, LOOP_CLR_FD) = 0 [pid 5644] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5644] close(4) = 0 [pid 5644] close(3) = 0 [pid 5644] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5643] <... futex resumed>) = 0 [pid 5644] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5643] exit_group(0) = ? [pid 5644] <... futex resumed>) = ? [pid 5644] +++ exited with 0 +++ [pid 5643] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5643, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5645 attached , child_tidptr=0x55557b776690) = 5645 [pid 5645] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5645] setpgid(0, 0) = 0 [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5645] write(3, "1000", 4) = 4 [pid 5645] close(3) = 0 executing program [pid 5645] write(1, "executing program\n", 18) = 18 [pid 5645] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5645] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5645] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5645] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5645] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5645] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5646 attached [pid 5646] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5645] <... clone3 resumed> => {parent_tid=[5646]}, 88) = 5646 [pid 5646] <... rseq resumed>) = 0 [pid 5645] rt_sigprocmask(SIG_SETMASK, [], [pid 5646] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5645] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5645] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], [pid 5645] <... futex resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5645] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5646] memfd_create("syzkaller", 0) = 3 [pid 5646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5646] 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"..., 16777216) = 16777216 [pid 5646] munmap(0x7f3be0600000, 138412032) = 0 [pid 5646] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5646] ioctl(4, LOOP_CLR_FD) = 0 [pid 5646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5646] close(4) = 0 [pid 5646] close(3) = 0 [pid 5646] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5645] <... futex resumed>) = 0 [pid 5646] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5645] exit_group(0) = ? [pid 5646] <... futex resumed>) = ? [pid 5646] +++ exited with 0 +++ [pid 5645] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5647 attached , child_tidptr=0x55557b776690) = 5647 [pid 5647] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5647] setpgid(0, 0) = 0 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5647] write(3, "1000", 4) = 4 [pid 5647] close(3) = 0 executing program [pid 5647] write(1, "executing program\n", 18) = 18 [pid 5647] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5647] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5647] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5647] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5647] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5647] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5648 attached [pid 5648] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5647] <... clone3 resumed> => {parent_tid=[5648]}, 88) = 5648 [pid 5648] <... rseq resumed>) = 0 [pid 5647] rt_sigprocmask(SIG_SETMASK, [], [pid 5648] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5647] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5647] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5648] rt_sigprocmask(SIG_SETMASK, [], [pid 5647] <... futex resumed>) = 0 [pid 5648] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5647] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5648] memfd_create("syzkaller", 0) = 3 [pid 5648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5648] 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"..., 16777216) = 16777216 [pid 5648] munmap(0x7f3be0600000, 138412032) = 0 [pid 5648] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5648] ioctl(4, LOOP_CLR_FD) = 0 [pid 5648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5648] close(4) = 0 [pid 5648] close(3) = 0 [pid 5648] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5648] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5647] <... futex resumed>) = 0 [pid 5647] exit_group(0 [pid 5648] <... futex resumed>) = ? [pid 5647] <... exit_group resumed>) = ? [pid 5648] +++ exited with 0 +++ [pid 5647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5649 attached , child_tidptr=0x55557b776690) = 5649 [pid 5649] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5649] setpgid(0, 0) = 0 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5649] write(3, "1000", 4) = 4 [pid 5649] close(3) = 0 [pid 5649] write(1, "executing program\n", 18executing program ) = 18 [pid 5649] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5649] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5649] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5649] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5649] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5649] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5649] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5650 attached [pid 5650] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5649] <... clone3 resumed> => {parent_tid=[5650]}, 88) = 5650 [pid 5650] <... rseq resumed>) = 0 [pid 5650] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5649] rt_sigprocmask(SIG_SETMASK, [], [pid 5650] <... set_robust_list resumed>) = 0 [pid 5649] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5650] rt_sigprocmask(SIG_SETMASK, [], [pid 5649] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5650] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5649] <... futex resumed>) = 0 [pid 5649] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5650] memfd_create("syzkaller", 0) = 3 [pid 5650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5650] 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"..., 16777216) = 16777216 [pid 5650] munmap(0x7f3be0600000, 138412032) = 0 [pid 5650] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5650] ioctl(4, LOOP_CLR_FD) = 0 [pid 5650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5650] close(4) = 0 [pid 5650] close(3) = 0 [pid 5650] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5649] <... futex resumed>) = 0 [pid 5650] <... futex resumed>) = 1 [pid 5649] exit_group(0 [pid 5650] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5649] <... exit_group resumed>) = ? [pid 5650] +++ exited with 0 +++ [pid 5649] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5649, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5651 attached , child_tidptr=0x55557b776690) = 5651 [pid 5651] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5651] setpgid(0, 0) = 0 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5651] write(3, "1000", 4) = 4 [pid 5651] close(3) = 0 [pid 5651] write(1, "executing program\n", 18executing program ) = 18 [pid 5651] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5651] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5651] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5651] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5651] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5651] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5652 attached [pid 5652] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5651] <... clone3 resumed> => {parent_tid=[5652]}, 88) = 5652 [pid 5652] <... rseq resumed>) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [], [pid 5652] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5651] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5651] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5651] <... futex resumed>) = 0 [pid 5652] memfd_create("syzkaller", 0 [pid 5651] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5652] <... memfd_create resumed>) = 3 [pid 5652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5652] 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"..., 16777216) = 16777216 [pid 5652] munmap(0x7f3be0600000, 138412032) = 0 [pid 5652] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5652] ioctl(4, LOOP_CLR_FD) = 0 [pid 5652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5652] close(4) = 0 [pid 5652] close(3) = 0 [pid 5652] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5651] <... futex resumed>) = 0 [pid 5652] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5651] exit_group(0 [pid 5652] <... futex resumed>) = ? [pid 5651] <... exit_group resumed>) = ? [pid 5652] +++ exited with 0 +++ [pid 5651] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5653 attached , child_tidptr=0x55557b776690) = 5653 [pid 5653] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5653] setpgid(0, 0) = 0 [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5653] write(3, "1000", 4) = 4 [pid 5653] close(3) = 0 [pid 5653] write(1, "executing program\n", 18executing program ) = 18 [pid 5653] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5653] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5653] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5653] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5653] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5653] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5654 attached => {parent_tid=[5654]}, 88) = 5654 [pid 5654] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5654] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5653] rt_sigprocmask(SIG_SETMASK, [], [pid 5654] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5653] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5653] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5654] <... futex resumed>) = 0 [pid 5653] <... futex resumed>) = 1 [pid 5654] memfd_create("syzkaller", 0) = 3 [pid 5654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5653] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5654] <... mmap resumed>) = 0x7f3be0600000 [pid 5654] 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"..., 16777216) = 16777216 [pid 5654] munmap(0x7f3be0600000, 138412032) = 0 [pid 5654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5654] ioctl(4, LOOP_CLR_FD) = 0 [pid 5654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5654] close(4) = 0 [pid 5654] close(3) = 0 [pid 5654] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5653] <... futex resumed>) = 0 [pid 5654] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5653] exit_group(0 [pid 5654] <... futex resumed>) = ? [pid 5653] <... exit_group resumed>) = ? [pid 5654] +++ exited with 0 +++ [pid 5653] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5653, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5655 attached , child_tidptr=0x55557b776690) = 5655 [pid 5655] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5655] setpgid(0, 0) = 0 [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5655] write(3, "1000", 4) = 4 [pid 5655] close(3) = 0 [pid 5655] write(1, "executing program\n", 18executing program ) = 18 [pid 5655] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5655] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5655] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5655] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5655] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5655] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5656 attached [pid 5656] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5655] <... clone3 resumed> => {parent_tid=[5656]}, 88) = 5656 [pid 5656] <... rseq resumed>) = 0 [pid 5656] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5655] rt_sigprocmask(SIG_SETMASK, [], [pid 5656] <... set_robust_list resumed>) = 0 [pid 5655] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5656] rt_sigprocmask(SIG_SETMASK, [], [pid 5655] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5656] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5655] <... futex resumed>) = 0 [pid 5656] memfd_create("syzkaller", 0 [pid 5655] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5656] <... memfd_create resumed>) = 3 [pid 5656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5656] 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"..., 16777216) = 16777216 [pid 5656] munmap(0x7f3be0600000, 138412032) = 0 [pid 5656] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5656] ioctl(4, LOOP_CLR_FD) = 0 [pid 5656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5656] close(4) = 0 [pid 5656] close(3) = 0 [pid 5656] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5655] <... futex resumed>) = 0 [pid 5656] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5655] exit_group(0 [pid 5656] <... futex resumed>) = ? [pid 5655] <... exit_group resumed>) = ? [pid 5656] +++ exited with 0 +++ [pid 5655] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5655, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} --- 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=0x55557b776690) = 5657 ./strace-static-x86_64: Process 5657 attached [pid 5657] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5657] setpgid(0, 0) = 0 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5657] write(3, "1000", 4) = 4 [pid 5657] close(3) = 0 [pid 5657] write(1, "executing program\n", 18executing program ) = 18 [pid 5657] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5657] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5657] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5657] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5657] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5657] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5658 attached [pid 5658] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5657] <... clone3 resumed> => {parent_tid=[5658]}, 88) = 5658 [pid 5658] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5657] rt_sigprocmask(SIG_SETMASK, [], [pid 5658] <... set_robust_list resumed>) = 0 [pid 5657] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5658] rt_sigprocmask(SIG_SETMASK, [], [pid 5657] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5658] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5657] <... futex resumed>) = 0 [pid 5658] memfd_create("syzkaller", 0 [pid 5657] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5658] <... memfd_create resumed>) = 3 [pid 5658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5658] 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"..., 16777216) = 16777216 [pid 5658] munmap(0x7f3be0600000, 138412032) = 0 [pid 5658] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5658] ioctl(4, LOOP_CLR_FD) = 0 [pid 5658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5658] close(4) = 0 [pid 5658] close(3) = 0 [pid 5658] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5657] <... futex resumed>) = 0 [pid 5658] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5657] exit_group(0 [pid 5658] <... futex resumed>) = ? [pid 5657] <... exit_group resumed>) = ? [pid 5658] +++ exited with 0 +++ [pid 5657] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5657, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5659 attached , child_tidptr=0x55557b776690) = 5659 [pid 5659] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5659] setpgid(0, 0) = 0 [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5659] write(3, "1000", 4) = 4 [pid 5659] close(3) = 0 [pid 5659] write(1, "executing program\n", 18executing program ) = 18 [pid 5659] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5659] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5659] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5659] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5659] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5659] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5660 attached [pid 5660] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5659] <... clone3 resumed> => {parent_tid=[5660]}, 88) = 5660 [pid 5660] <... rseq resumed>) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [], [pid 5660] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5659] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5659] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5659] <... futex resumed>) = 0 [pid 5660] memfd_create("syzkaller", 0 [pid 5659] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5660] <... memfd_create resumed>) = 3 [pid 5660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5660] 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"..., 16777216) = 16777216 [pid 5660] munmap(0x7f3be0600000, 138412032) = 0 [pid 5660] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5660] ioctl(4, LOOP_CLR_FD) = 0 [pid 5660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5660] close(4) = 0 [pid 5660] close(3) = 0 [pid 5660] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5659] <... futex resumed>) = 0 [pid 5660] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5659] exit_group(0 [pid 5660] <... futex resumed>) = ? [pid 5659] <... exit_group resumed>) = ? [pid 5660] +++ exited with 0 +++ [pid 5659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5661 attached , child_tidptr=0x55557b776690) = 5661 [pid 5661] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5661] setpgid(0, 0) = 0 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5661] write(3, "1000", 4) = 4 [pid 5661] close(3) = 0 [pid 5661] write(1, "executing program\n", 18executing program ) = 18 [pid 5661] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5661] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5661] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5661] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5661] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5662 attached [pid 5662] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5661] <... clone3 resumed> => {parent_tid=[5662]}, 88) = 5662 [pid 5662] <... rseq resumed>) = 0 [pid 5661] rt_sigprocmask(SIG_SETMASK, [], [pid 5662] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5661] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5661] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], [pid 5661] <... futex resumed>) = 0 [pid 5662] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5661] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5662] memfd_create("syzkaller", 0) = 3 [pid 5662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5662] 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"..., 16777216) = 16777216 [pid 5662] munmap(0x7f3be0600000, 138412032) = 0 [pid 5662] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5662] ioctl(4, LOOP_CLR_FD) = 0 [pid 5662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5662] close(4) = 0 [pid 5662] close(3) = 0 [pid 5662] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5662] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5661] <... futex resumed>) = 0 [pid 5661] exit_group(0 [pid 5662] <... futex resumed>) = ? [pid 5661] <... exit_group resumed>) = ? [pid 5662] +++ exited with 0 +++ [pid 5661] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5661, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- 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 5663 attached , child_tidptr=0x55557b776690) = 5663 [pid 5663] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5663] setpgid(0, 0) = 0 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5663] write(3, "1000", 4) = 4 [pid 5663] close(3) = 0 [pid 5663] write(1, "executing program\n", 18executing program ) = 18 [pid 5663] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5663] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5663] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5663] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5663] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5663] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5663] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5664 attached [pid 5664] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5664] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5664] rt_sigprocmask(SIG_SETMASK, [], [pid 5663] <... clone3 resumed> => {parent_tid=[5664]}, 88) = 5664 [pid 5664] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5663] rt_sigprocmask(SIG_SETMASK, [], [pid 5664] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5663] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5663] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] <... futex resumed>) = 0 [pid 5663] <... futex resumed>) = 1 [pid 5664] memfd_create("syzkaller", 0) = 3 [pid 5663] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5664] 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"..., 16777216) = 16777216 [pid 5664] munmap(0x7f3be0600000, 138412032) = 0 [pid 5664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5664] ioctl(4, LOOP_CLR_FD) = 0 [pid 5664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5664] close(4) = 0 [pid 5664] close(3) = 0 [pid 5664] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5663] <... futex resumed>) = 0 [pid 5664] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5663] exit_group(0) = ? [pid 5664] <... futex resumed>) = ? [pid 5664] +++ exited with 0 +++ [pid 5663] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5663, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 5665 attached , child_tidptr=0x55557b776690) = 5665 [pid 5665] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5665] setpgid(0, 0) = 0 [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5665] write(3, "1000", 4) = 4 [pid 5665] close(3) = 0 [pid 5665] write(1, "executing program\n", 18executing program ) = 18 [pid 5665] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5665] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5665] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5665] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5665] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5665] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5666 attached [pid 5666] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5665] <... clone3 resumed> => {parent_tid=[5666]}, 88) = 5666 [pid 5666] <... rseq resumed>) = 0 [pid 5665] rt_sigprocmask(SIG_SETMASK, [], [pid 5666] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5665] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5666] <... set_robust_list resumed>) = 0 [pid 5665] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5666] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5665] <... futex resumed>) = 0 [pid 5665] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5666] memfd_create("syzkaller", 0) = 3 [pid 5666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5666] 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"..., 16777216) = 16777216 [pid 5666] munmap(0x7f3be0600000, 138412032) = 0 [pid 5666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5666] ioctl(4, LOOP_CLR_FD) = 0 [pid 5666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5666] close(4) = 0 [pid 5666] close(3) = 0 [pid 5666] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5666] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5665] <... futex resumed>) = 0 [pid 5665] exit_group(0 [pid 5666] <... futex resumed>) = ? [pid 5665] <... exit_group resumed>) = ? [pid 5666] +++ exited with 0 +++ [pid 5665] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5665, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5667 attached , child_tidptr=0x55557b776690) = 5667 [pid 5667] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5667] setpgid(0, 0) = 0 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5667] write(3, "1000", 4) = 4 [pid 5667] close(3) = 0 executing program [pid 5667] write(1, "executing program\n", 18) = 18 [pid 5667] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5667] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5667] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5667] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5667] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5667] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5668 attached [pid 5668] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5667] <... clone3 resumed> => {parent_tid=[5668]}, 88) = 5668 [pid 5668] <... rseq resumed>) = 0 [pid 5667] rt_sigprocmask(SIG_SETMASK, [], [pid 5668] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5667] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5667] <... futex resumed>) = 0 [pid 5668] memfd_create("syzkaller", 0 [pid 5667] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5668] <... memfd_create resumed>) = 3 [pid 5668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5668] 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"..., 16777216) = 16777216 [pid 5668] munmap(0x7f3be0600000, 138412032) = 0 [pid 5668] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5668] ioctl(4, LOOP_CLR_FD) = 0 [pid 5668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5668] close(4) = 0 [pid 5668] close(3) = 0 [pid 5668] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5667] <... futex resumed>) = 0 [pid 5667] exit_group(0 [pid 5668] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5667] <... exit_group resumed>) = ? [pid 5668] +++ exited with 0 +++ [pid 5667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5669 attached , child_tidptr=0x55557b776690) = 5669 [pid 5669] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5669] setpgid(0, 0) = 0 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5669] write(3, "1000", 4) = 4 [pid 5669] close(3) = 0 [pid 5669] write(1, "executing program\n", 18executing program ) = 18 [pid 5669] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5669] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5669] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5669] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5669] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5670 attached [pid 5670] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5669] <... clone3 resumed> => {parent_tid=[5670]}, 88) = 5670 [pid 5670] <... rseq resumed>) = 0 [pid 5669] rt_sigprocmask(SIG_SETMASK, [], [pid 5670] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5669] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5669] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5669] <... futex resumed>) = 0 [pid 5670] memfd_create("syzkaller", 0 [pid 5669] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5670] <... memfd_create resumed>) = 3 [pid 5670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5670] 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"..., 16777216) = 16777216 [pid 5670] munmap(0x7f3be0600000, 138412032) = 0 [pid 5670] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5670] ioctl(4, LOOP_CLR_FD) = 0 [pid 5670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5670] close(4) = 0 [pid 5670] close(3) = 0 [pid 5670] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5669] <... futex resumed>) = 0 [pid 5670] <... futex resumed>) = 1 [pid 5669] exit_group(0) = ? [pid 5670] +++ exited with 0 +++ [pid 5669] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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=0x55557b776690) = 5671 ./strace-static-x86_64: Process 5671 attached [pid 5671] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5671] setpgid(0, 0) = 0 [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5671] write(3, "1000", 4) = 4 [pid 5671] close(3) = 0 [pid 5671] write(1, "executing program\n", 18executing program ) = 18 [pid 5671] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5671] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5671] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5671] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5671] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5671] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5672 attached [pid 5672] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5671] <... clone3 resumed> => {parent_tid=[5672]}, 88) = 5672 [pid 5672] <... rseq resumed>) = 0 [pid 5671] rt_sigprocmask(SIG_SETMASK, [], [pid 5672] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5671] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5672] <... set_robust_list resumed>) = 0 [pid 5671] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5671] <... futex resumed>) = 0 [pid 5672] memfd_create("syzkaller", 0 [pid 5671] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5672] <... memfd_create resumed>) = 3 [pid 5672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5672] 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"..., 16777216) = 16777216 [pid 5672] munmap(0x7f3be0600000, 138412032) = 0 [pid 5672] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5672] ioctl(4, LOOP_CLR_FD) = 0 [pid 5672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5672] close(4) = 0 [pid 5672] close(3) = 0 [pid 5672] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5671] <... futex resumed>) = 0 [pid 5671] exit_group(0 [pid 5672] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5671] <... exit_group resumed>) = ? [pid 5672] +++ exited with 0 +++ [pid 5671] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5671, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5673 attached , child_tidptr=0x55557b776690) = 5673 [pid 5673] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5673] setpgid(0, 0) = 0 [pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5673] write(3, "1000", 4) = 4 [pid 5673] close(3) = 0 executing program [pid 5673] write(1, "executing program\n", 18) = 18 [pid 5673] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5673] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5673] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5673] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5673] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5673] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5674 attached [pid 5674] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5673] <... clone3 resumed> => {parent_tid=[5674]}, 88) = 5674 [pid 5674] <... rseq resumed>) = 0 [pid 5674] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5673] rt_sigprocmask(SIG_SETMASK, [], [pid 5674] <... set_robust_list resumed>) = 0 [pid 5673] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5674] rt_sigprocmask(SIG_SETMASK, [], [pid 5673] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5674] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5673] <... futex resumed>) = 0 [pid 5674] memfd_create("syzkaller", 0 [pid 5673] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5674] <... memfd_create resumed>) = 3 [pid 5674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5674] 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"..., 16777216) = 16777216 [pid 5674] munmap(0x7f3be0600000, 138412032) = 0 [pid 5674] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5674] ioctl(4, LOOP_CLR_FD) = 0 [pid 5674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5674] close(4) = 0 [pid 5674] close(3) = 0 [pid 5674] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5673] <... futex resumed>) = 0 [pid 5673] exit_group(0) = ? [pid 5674] +++ exited with 0 +++ [pid 5673] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5673, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5675 attached , child_tidptr=0x55557b776690) = 5675 [pid 5675] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5675] setpgid(0, 0) = 0 [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5675] write(3, "1000", 4) = 4 [pid 5675] close(3) = 0 [pid 5675] write(1, "executing program\n", 18executing program ) = 18 [pid 5675] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5675] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5675] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5675] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5675] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5675] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5675] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5676 attached => {parent_tid=[5676]}, 88) = 5676 [pid 5675] rt_sigprocmask(SIG_SETMASK, [], [pid 5676] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5675] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5676] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5675] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5676] <... set_robust_list resumed>) = 0 [pid 5675] <... futex resumed>) = 0 [pid 5676] rt_sigprocmask(SIG_SETMASK, [], [pid 5675] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5676] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5676] memfd_create("syzkaller", 0) = 3 [pid 5676] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5676] 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"..., 16777216) = 16777216 [pid 5676] munmap(0x7f3be0600000, 138412032) = 0 [pid 5676] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5676] ioctl(4, LOOP_CLR_FD) = 0 [pid 5676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5676] close(4) = 0 [pid 5676] close(3) = 0 [pid 5676] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5675] <... futex resumed>) = 0 [pid 5676] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5675] exit_group(0) = ? [pid 5676] <... futex resumed>) = ? [pid 5676] +++ exited with 0 +++ [pid 5675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5675, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5677 attached , child_tidptr=0x55557b776690) = 5677 [pid 5677] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5677] setpgid(0, 0) = 0 [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5677] write(3, "1000", 4) = 4 [pid 5677] close(3) = 0 executing program [pid 5677] write(1, "executing program\n", 18) = 18 [pid 5677] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5677] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5677] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5677] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5677] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5677] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5678 attached => {parent_tid=[5678]}, 88) = 5678 [pid 5677] rt_sigprocmask(SIG_SETMASK, [], [pid 5678] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5677] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5678] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5677] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5678] <... set_robust_list resumed>) = 0 [pid 5677] <... futex resumed>) = 0 [pid 5678] rt_sigprocmask(SIG_SETMASK, [], [pid 5677] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5678] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5678] memfd_create("syzkaller", 0) = 3 [pid 5678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5678] 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"..., 16777216) = 16777216 [pid 5678] munmap(0x7f3be0600000, 138412032) = 0 [pid 5678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5678] ioctl(4, LOOP_CLR_FD) = 0 [pid 5678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5678] close(4) = 0 [pid 5678] close(3) = 0 [pid 5678] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5677] <... futex resumed>) = 0 [pid 5678] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5677] exit_group(0) = ? [pid 5678] <... futex resumed>) = ? [pid 5678] +++ exited with 0 +++ [pid 5677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5677, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5679 attached , child_tidptr=0x55557b776690) = 5679 [pid 5679] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5679] setpgid(0, 0) = 0 [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5679] write(3, "1000", 4) = 4 [pid 5679] close(3) = 0 [pid 5679] write(1, "executing program\n", 18executing program ) = 18 [pid 5679] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5679] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5679] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5679] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5679] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5679] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5680 attached => {parent_tid=[5680]}, 88) = 5680 [pid 5679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5680] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5679] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5680] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5679] <... futex resumed>) = 0 [pid 5680] <... set_robust_list resumed>) = 0 [pid 5680] rt_sigprocmask(SIG_SETMASK, [], [pid 5679] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5680] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5680] memfd_create("syzkaller", 0) = 3 [pid 5680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5680] 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"..., 16777216) = 16777216 [pid 5680] munmap(0x7f3be0600000, 138412032) = 0 [pid 5680] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5680] ioctl(4, LOOP_CLR_FD) = 0 [pid 5680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5680] close(4) = 0 [pid 5680] close(3) = 0 [pid 5680] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5679] <... futex resumed>) = 0 [pid 5680] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5679] exit_group(0) = ? [pid 5680] <... futex resumed>) = ? [pid 5680] +++ exited with 0 +++ [pid 5679] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5679, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5681 attached , child_tidptr=0x55557b776690) = 5681 [pid 5681] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5681] setpgid(0, 0) = 0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5681] write(3, "1000", 4) = 4 [pid 5681] close(3) = 0 [pid 5681] write(1, "executing program\n", 18executing program ) = 18 [pid 5681] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5681] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5681] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5681] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5681] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5681] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5682 attached => {parent_tid=[5682]}, 88) = 5682 [pid 5682] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5681] rt_sigprocmask(SIG_SETMASK, [], [pid 5682] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5681] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5682] <... set_robust_list resumed>) = 0 [pid 5682] rt_sigprocmask(SIG_SETMASK, [], [pid 5681] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5682] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5681] <... futex resumed>) = 0 [pid 5681] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5682] memfd_create("syzkaller", 0) = 3 [pid 5682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5682] 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"..., 16777216) = 16777216 [pid 5682] munmap(0x7f3be0600000, 138412032) = 0 [pid 5682] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5682] ioctl(4, LOOP_CLR_FD) = 0 [pid 5682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5682] close(4) = 0 [pid 5682] close(3) = 0 [pid 5682] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5682] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5681] <... futex resumed>) = 0 [pid 5681] exit_group(0) = ? [pid 5682] <... futex resumed>) = ? [pid 5682] +++ exited with 0 +++ [pid 5681] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5683 attached , child_tidptr=0x55557b776690) = 5683 [pid 5683] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5683] setpgid(0, 0) = 0 [pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5683] write(3, "1000", 4) = 4 [pid 5683] close(3) = 0 [pid 5683] write(1, "executing program\n", 18executing program ) = 18 [pid 5683] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5683] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5683] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5683] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5683] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5683] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5684 attached [pid 5684] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5683] <... clone3 resumed> => {parent_tid=[5684]}, 88) = 5684 [pid 5684] <... rseq resumed>) = 0 [pid 5684] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5683] rt_sigprocmask(SIG_SETMASK, [], [pid 5684] <... set_robust_list resumed>) = 0 [pid 5683] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5684] rt_sigprocmask(SIG_SETMASK, [], [pid 5683] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5684] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5683] <... futex resumed>) = 0 [pid 5684] memfd_create("syzkaller", 0 [pid 5683] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5684] <... memfd_create resumed>) = 3 [pid 5684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5684] 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"..., 16777216) = 16777216 [pid 5684] munmap(0x7f3be0600000, 138412032) = 0 [pid 5684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5684] ioctl(4, LOOP_CLR_FD) = 0 [pid 5684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5684] close(4) = 0 [pid 5684] close(3) = 0 [pid 5684] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5683] <... futex resumed>) = 0 [pid 5684] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5683] exit_group(0 [pid 5684] <... futex resumed>) = ? [pid 5683] <... exit_group resumed>) = ? [pid 5684] +++ exited with 0 +++ [pid 5683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5683, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5685 attached , child_tidptr=0x55557b776690) = 5685 [pid 5685] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5685] setpgid(0, 0) = 0 [pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5685] write(3, "1000", 4) = 4 [pid 5685] close(3) = 0 executing program [pid 5685] write(1, "executing program\n", 18) = 18 [pid 5685] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5685] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5685] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5685] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5685] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5685] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5685] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5686 attached [pid 5686] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5685] <... clone3 resumed> => {parent_tid=[5686]}, 88) = 5686 [pid 5686] <... rseq resumed>) = 0 [pid 5685] rt_sigprocmask(SIG_SETMASK, [], [pid 5686] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5685] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5686] <... set_robust_list resumed>) = 0 [pid 5685] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5686] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5685] <... futex resumed>) = 0 [pid 5686] memfd_create("syzkaller", 0 [pid 5685] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5686] <... memfd_create resumed>) = 3 [pid 5686] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5686] 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"..., 16777216) = 16777216 [pid 5686] munmap(0x7f3be0600000, 138412032) = 0 [pid 5686] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5686] ioctl(4, LOOP_CLR_FD) = 0 [pid 5686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5686] close(4) = 0 [pid 5686] close(3) = 0 [pid 5686] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5685] <... futex resumed>) = 0 [pid 5685] exit_group(0 [pid 5686] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5685] <... exit_group resumed>) = ? [pid 5686] <... futex resumed>) = ? [pid 5686] +++ exited with 0 +++ [pid 5685] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5685, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5687 attached , child_tidptr=0x55557b776690) = 5687 [pid 5687] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5687] setpgid(0, 0) = 0 [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5687] write(3, "1000", 4) = 4 [pid 5687] close(3) = 0 [pid 5687] write(1, "executing program\n", 18executing program ) = 18 [pid 5687] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5687] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5687] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5687] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5687] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5687] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5687] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5688 attached [pid 5688] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5687] <... clone3 resumed> => {parent_tid=[5688]}, 88) = 5688 [pid 5688] <... rseq resumed>) = 0 [pid 5687] rt_sigprocmask(SIG_SETMASK, [], [pid 5688] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5687] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5688] <... set_robust_list resumed>) = 0 [pid 5687] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5688] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5687] <... futex resumed>) = 0 [pid 5688] memfd_create("syzkaller", 0 [pid 5687] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5688] <... memfd_create resumed>) = 3 [pid 5688] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5688] 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"..., 16777216) = 16777216 [pid 5688] munmap(0x7f3be0600000, 138412032) = 0 [pid 5688] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5688] ioctl(4, LOOP_CLR_FD) = 0 [pid 5688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5688] close(4) = 0 [pid 5688] close(3) = 0 [pid 5688] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5687] <... futex resumed>) = 0 [pid 5687] exit_group(0) = ? [pid 5688] +++ exited with 0 +++ [pid 5687] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5689 attached , child_tidptr=0x55557b776690) = 5689 [pid 5689] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5689] setpgid(0, 0) = 0 [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5689] write(3, "1000", 4) = 4 [pid 5689] close(3) = 0 [pid 5689] write(1, "executing program\n", 18executing program ) = 18 [pid 5689] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5689] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5689] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5689] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5689] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5689] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5690 attached [pid 5690] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5689] <... clone3 resumed> => {parent_tid=[5690]}, 88) = 5690 [pid 5690] <... rseq resumed>) = 0 [pid 5689] rt_sigprocmask(SIG_SETMASK, [], [pid 5690] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5689] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5690] <... set_robust_list resumed>) = 0 [pid 5689] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5689] <... futex resumed>) = 0 [pid 5690] memfd_create("syzkaller", 0 [pid 5689] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5690] <... memfd_create resumed>) = 3 [pid 5690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5690] 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"..., 16777216) = 16777216 [pid 5690] munmap(0x7f3be0600000, 138412032) = 0 [pid 5690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5690] ioctl(4, LOOP_CLR_FD) = 0 [pid 5690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5690] close(4) = 0 [pid 5690] close(3) = 0 [pid 5690] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5689] <... futex resumed>) = 0 [pid 5690] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5689] exit_group(0 [pid 5690] <... futex resumed>) = ? [pid 5689] <... exit_group resumed>) = ? [pid 5690] +++ exited with 0 +++ [pid 5689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5691 attached , child_tidptr=0x55557b776690) = 5691 [pid 5691] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5691] setpgid(0, 0) = 0 [pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5691] write(3, "1000", 4) = 4 [pid 5691] close(3) = 0 executing program [pid 5691] write(1, "executing program\n", 18) = 18 [pid 5691] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5691] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5691] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5691] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5691] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5691] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5692 attached [pid 5692] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5692] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5691] <... clone3 resumed> => {parent_tid=[5692]}, 88) = 5692 [pid 5692] <... set_robust_list resumed>) = 0 [pid 5691] rt_sigprocmask(SIG_SETMASK, [], [pid 5692] rt_sigprocmask(SIG_SETMASK, [], [pid 5691] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5692] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5691] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5692] memfd_create("syzkaller", 0 [pid 5691] <... futex resumed>) = 0 [pid 5691] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5692] <... memfd_create resumed>) = 3 [pid 5692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5692] 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"..., 16777216) = 16777216 [pid 5692] munmap(0x7f3be0600000, 138412032) = 0 [pid 5692] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5692] ioctl(4, LOOP_CLR_FD) = 0 [pid 5692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5692] close(4) = 0 [pid 5692] close(3) = 0 [pid 5692] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5691] <... futex resumed>) = 0 [pid 5691] exit_group(0 [pid 5692] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5691] <... exit_group resumed>) = ? [pid 5692] +++ exited with 0 +++ [pid 5691] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5691, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5693 attached , child_tidptr=0x55557b776690) = 5693 [pid 5693] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5693] setpgid(0, 0) = 0 [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5693] write(3, "1000", 4) = 4 [pid 5693] close(3) = 0 executing program [pid 5693] write(1, "executing program\n", 18) = 18 [pid 5693] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5693] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5693] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5693] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5693] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5693] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5693] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5694 attached [pid 5694] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5694] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5694] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5693] <... clone3 resumed> => {parent_tid=[5694]}, 88) = 5694 [pid 5694] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5693] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5694] <... futex resumed>) = 0 [pid 5693] <... futex resumed>) = 1 [pid 5694] memfd_create("syzkaller", 0 [pid 5693] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5694] <... memfd_create resumed>) = 3 [pid 5694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5694] 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"..., 16777216) = 16777216 [pid 5694] munmap(0x7f3be0600000, 138412032) = 0 [pid 5694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5694] ioctl(4, LOOP_CLR_FD) = 0 [pid 5694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5694] close(4) = 0 [pid 5694] close(3) = 0 [pid 5694] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5693] <... futex resumed>) = 0 [pid 5694] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5693] exit_group(0 [pid 5694] <... futex resumed>) = ? [pid 5693] <... exit_group resumed>) = ? [pid 5694] +++ exited with 0 +++ [pid 5693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- 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 5695 attached , child_tidptr=0x55557b776690) = 5695 [pid 5695] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5695] setpgid(0, 0) = 0 [pid 5695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5695] write(3, "1000", 4) = 4 [pid 5695] close(3) = 0 [pid 5695] write(1, "executing program\n", 18executing program ) = 18 [pid 5695] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5695] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5695] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5695] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5695] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5695] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5696 attached [pid 5696] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5695] <... clone3 resumed> => {parent_tid=[5696]}, 88) = 5696 [pid 5696] <... rseq resumed>) = 0 [pid 5696] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5695] rt_sigprocmask(SIG_SETMASK, [], [pid 5696] <... set_robust_list resumed>) = 0 [pid 5695] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5696] rt_sigprocmask(SIG_SETMASK, [], [pid 5695] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5696] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5695] <... futex resumed>) = 0 [pid 5696] memfd_create("syzkaller", 0 [pid 5695] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5696] <... memfd_create resumed>) = 3 [pid 5696] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5696] 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"..., 16777216) = 16777216 [pid 5696] munmap(0x7f3be0600000, 138412032) = 0 [pid 5696] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5696] ioctl(4, LOOP_CLR_FD) = 0 [pid 5696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5696] close(4) = 0 [pid 5696] close(3) = 0 [pid 5696] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5695] <... futex resumed>) = 0 [pid 5696] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5695] exit_group(0 [pid 5696] <... futex resumed>) = ? [pid 5696] +++ exited with 0 +++ [pid 5695] <... exit_group resumed>) = ? [pid 5695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5695, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5697 attached , child_tidptr=0x55557b776690) = 5697 [pid 5697] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5697] setpgid(0, 0) = 0 [pid 5697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5697] write(3, "1000", 4) = 4 [pid 5697] close(3) = 0 [pid 5697] write(1, "executing program\n", 18executing program ) = 18 [pid 5697] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5697] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5697] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5697] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5697] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5697] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[5698]}, 88) = 5698 [pid 5697] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5698 attached NULL, 8) = 0 [pid 5697] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5697] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5698] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5698] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5698] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5698] memfd_create("syzkaller", 0) = 3 [pid 5698] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5698] 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"..., 16777216) = 16777216 [pid 5698] munmap(0x7f3be0600000, 138412032) = 0 [pid 5698] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5698] ioctl(4, LOOP_CLR_FD) = 0 [pid 5698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5698] close(4) = 0 [pid 5698] close(3) = 0 [pid 5698] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5698] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5697] <... futex resumed>) = 0 [pid 5697] exit_group(0) = ? [pid 5698] <... futex resumed>) = ? [pid 5698] +++ exited with 0 +++ [pid 5697] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5697, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5699 attached , child_tidptr=0x55557b776690) = 5699 [pid 5699] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5699] setpgid(0, 0) = 0 [pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5699] write(3, "1000", 4) = 4 [pid 5699] close(3) = 0 [pid 5699] write(1, "executing program\n", 18executing program ) = 18 [pid 5699] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5699] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5699] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5699] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5699] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5699] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5699] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5700 attached [pid 5700] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5699] <... clone3 resumed> => {parent_tid=[5700]}, 88) = 5700 [pid 5700] <... rseq resumed>) = 0 [pid 5699] rt_sigprocmask(SIG_SETMASK, [], [pid 5700] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5699] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5700] <... set_robust_list resumed>) = 0 [pid 5699] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5700] rt_sigprocmask(SIG_SETMASK, [], [pid 5699] <... futex resumed>) = 0 [pid 5700] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5699] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5700] memfd_create("syzkaller", 0) = 3 [pid 5700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5700] 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"..., 16777216) = 16777216 [pid 5700] munmap(0x7f3be0600000, 138412032) = 0 [pid 5700] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5700] ioctl(4, LOOP_CLR_FD) = 0 [pid 5700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5700] close(4) = 0 [pid 5700] close(3) = 0 [pid 5700] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5700] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5699] <... futex resumed>) = 0 [pid 5699] exit_group(0 [pid 5700] <... futex resumed>) = ? [pid 5699] <... exit_group resumed>) = ? [pid 5700] +++ exited with 0 +++ [pid 5699] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5699, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5701 attached , child_tidptr=0x55557b776690) = 5701 [pid 5701] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5701] setpgid(0, 0) = 0 [pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5701] write(3, "1000", 4) = 4 [pid 5701] close(3) = 0 executing program [pid 5701] write(1, "executing program\n", 18) = 18 [pid 5701] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5701] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5701] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5701] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5701] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5701] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5701] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5702 attached => {parent_tid=[5702]}, 88) = 5702 [pid 5701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5701] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5702] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5701] <... futex resumed>) = 0 [pid 5702] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5701] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5702] <... set_robust_list resumed>) = 0 [pid 5702] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5702] memfd_create("syzkaller", 0) = 3 [pid 5702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5702] 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"..., 16777216) = 16777216 [pid 5702] munmap(0x7f3be0600000, 138412032) = 0 [pid 5702] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5702] ioctl(4, LOOP_CLR_FD) = 0 [pid 5702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5702] close(4) = 0 [pid 5702] close(3) = 0 [pid 5702] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5702] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5701] <... futex resumed>) = 0 [pid 5701] exit_group(0 [pid 5702] <... futex resumed>) = ? [pid 5701] <... exit_group resumed>) = ? [pid 5702] +++ exited with 0 +++ [pid 5701] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5703 attached , child_tidptr=0x55557b776690) = 5703 [pid 5703] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5703] setpgid(0, 0) = 0 [pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5703] write(3, "1000", 4) = 4 [pid 5703] close(3) = 0 executing program [pid 5703] write(1, "executing program\n", 18) = 18 [pid 5703] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5703] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5703] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5703] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5703] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5703] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5704 attached [pid 5704] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5703] <... clone3 resumed> => {parent_tid=[5704]}, 88) = 5704 [pid 5704] <... rseq resumed>) = 0 [pid 5703] rt_sigprocmask(SIG_SETMASK, [], [pid 5704] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5703] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5704] <... set_robust_list resumed>) = 0 [pid 5703] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5703] <... futex resumed>) = 0 [pid 5704] memfd_create("syzkaller", 0 [pid 5703] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5704] <... memfd_create resumed>) = 3 [pid 5704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5704] 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"..., 16777216) = 16777216 [pid 5704] munmap(0x7f3be0600000, 138412032) = 0 [pid 5704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5704] ioctl(4, LOOP_CLR_FD) = 0 [pid 5704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5704] close(4) = 0 [pid 5704] close(3) = 0 [pid 5704] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5703] <... futex resumed>) = 0 [pid 5703] exit_group(0) = ? [pid 5704] +++ exited with 0 +++ [pid 5703] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5705 attached , child_tidptr=0x55557b776690) = 5705 [pid 5705] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5705] setpgid(0, 0) = 0 [pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5705] write(3, "1000", 4) = 4 [pid 5705] close(3) = 0 [pid 5705] write(1, "executing program\n", 18executing program ) = 18 [pid 5705] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5705] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5705] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5705] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5705] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5705] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5705] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5706 attached [pid 5706] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5705] <... clone3 resumed> => {parent_tid=[5706]}, 88) = 5706 [pid 5706] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5705] rt_sigprocmask(SIG_SETMASK, [], [pid 5706] <... set_robust_list resumed>) = 0 [pid 5705] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5706] rt_sigprocmask(SIG_SETMASK, [], [pid 5705] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5706] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5705] <... futex resumed>) = 0 [pid 5706] memfd_create("syzkaller", 0 [pid 5705] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5706] <... memfd_create resumed>) = 3 [pid 5706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5706] 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"..., 16777216) = 16777216 [pid 5706] munmap(0x7f3be0600000, 138412032) = 0 [pid 5706] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5706] ioctl(4, LOOP_CLR_FD) = 0 [pid 5706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5706] close(4) = 0 [pid 5706] close(3) = 0 [pid 5706] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5705] <... futex resumed>) = 0 [pid 5706] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5705] exit_group(0 [pid 5706] <... futex resumed>) = ? [pid 5705] <... exit_group resumed>) = ? [pid 5706] +++ exited with 0 +++ [pid 5705] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5705, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5707 attached , child_tidptr=0x55557b776690) = 5707 [pid 5707] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5707] setpgid(0, 0) = 0 [pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5707] write(3, "1000", 4) = 4 [pid 5707] close(3) = 0 executing program [pid 5707] write(1, "executing program\n", 18) = 18 [pid 5707] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5707] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5707] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5707] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5707] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5707] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5707] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5708 attached [pid 5708] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5707] <... clone3 resumed> => {parent_tid=[5708]}, 88) = 5708 [pid 5708] <... rseq resumed>) = 0 [pid 5708] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5707] rt_sigprocmask(SIG_SETMASK, [], [pid 5708] <... set_robust_list resumed>) = 0 [pid 5707] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5708] rt_sigprocmask(SIG_SETMASK, [], [pid 5707] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5708] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5707] <... futex resumed>) = 0 [pid 5708] memfd_create("syzkaller", 0) = 3 [pid 5707] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5708] 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"..., 16777216) = 16777216 [pid 5708] munmap(0x7f3be0600000, 138412032) = 0 [pid 5708] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5708] ioctl(4, LOOP_CLR_FD) = 0 [pid 5708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5708] close(4) = 0 [pid 5708] close(3) = 0 [pid 5708] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5707] <... futex resumed>) = 0 [pid 5707] exit_group(0 [pid 5708] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5707] <... exit_group resumed>) = ? [pid 5708] +++ exited with 0 +++ [pid 5707] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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=0x55557b776690) = 5709 ./strace-static-x86_64: Process 5709 attached [pid 5709] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5709] setpgid(0, 0) = 0 [pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5709] write(3, "1000", 4) = 4 [pid 5709] close(3) = 0 executing program [pid 5709] write(1, "executing program\n", 18) = 18 [pid 5709] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5709] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5709] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5709] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5709] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5709] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5709] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5710 attached [pid 5710] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5709] <... clone3 resumed> => {parent_tid=[5710]}, 88) = 5710 [pid 5710] <... rseq resumed>) = 0 [pid 5710] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5709] rt_sigprocmask(SIG_SETMASK, [], [pid 5710] <... set_robust_list resumed>) = 0 [pid 5709] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5710] rt_sigprocmask(SIG_SETMASK, [], [pid 5709] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5710] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5709] <... futex resumed>) = 0 [pid 5710] memfd_create("syzkaller", 0 [pid 5709] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5710] <... memfd_create resumed>) = 3 [pid 5710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5710] 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"..., 16777216) = 16777216 [pid 5710] munmap(0x7f3be0600000, 138412032) = 0 [pid 5710] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5710] ioctl(4, LOOP_CLR_FD) = 0 [pid 5710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5710] close(4) = 0 [pid 5710] close(3) = 0 [pid 5710] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5709] <... futex resumed>) = 0 [pid 5709] exit_group(0 [pid 5710] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5709] <... exit_group resumed>) = ? [pid 5710] +++ exited with 0 +++ [pid 5709] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5711 attached , child_tidptr=0x55557b776690) = 5711 [pid 5711] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5711] setpgid(0, 0) = 0 [pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5711] write(3, "1000", 4) = 4 [pid 5711] close(3) = 0 [pid 5711] write(1, "executing program\n", 18executing program ) = 18 [pid 5711] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5711] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5711] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5711] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5711] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5711] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5711] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5712 attached [pid 5712] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5711] <... clone3 resumed> => {parent_tid=[5712]}, 88) = 5712 [pid 5712] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5711] rt_sigprocmask(SIG_SETMASK, [], [pid 5712] rt_sigprocmask(SIG_SETMASK, [], [pid 5711] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5712] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5711] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5712] memfd_create("syzkaller", 0 [pid 5711] <... futex resumed>) = 0 [pid 5711] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5712] <... memfd_create resumed>) = 3 [pid 5712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5712] 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"..., 16777216) = 16777216 [pid 5712] munmap(0x7f3be0600000, 138412032) = 0 [pid 5712] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5712] ioctl(4, LOOP_CLR_FD) = 0 [pid 5712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5712] close(4) = 0 [pid 5712] close(3) = 0 [pid 5712] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5712] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5711] <... futex resumed>) = 0 [pid 5711] exit_group(0) = ? [pid 5712] <... futex resumed>) = ? [pid 5712] +++ exited with 0 +++ [pid 5711] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5711, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5713 attached , child_tidptr=0x55557b776690) = 5713 [pid 5713] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5713] setpgid(0, 0) = 0 [pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5713] write(3, "1000", 4) = 4 [pid 5713] close(3) = 0 [pid 5713] write(1, "executing program\n", 18executing program ) = 18 [pid 5713] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5713] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5713] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5713] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5713] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5713] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5713] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5714 attached => {parent_tid=[5714]}, 88) = 5714 [pid 5713] rt_sigprocmask(SIG_SETMASK, [], [pid 5714] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5713] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5714] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5713] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5714] <... set_robust_list resumed>) = 0 [pid 5713] <... futex resumed>) = 0 [pid 5714] rt_sigprocmask(SIG_SETMASK, [], [pid 5713] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5714] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5714] memfd_create("syzkaller", 0) = 3 [pid 5714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5714] 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"..., 16777216) = 16777216 [pid 5714] munmap(0x7f3be0600000, 138412032) = 0 [pid 5714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5714] ioctl(4, LOOP_CLR_FD) = 0 [pid 5714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5714] close(4) = 0 [pid 5714] close(3) = 0 [pid 5714] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5713] <... futex resumed>) = 0 [pid 5714] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5713] exit_group(0) = ? [pid 5714] <... futex resumed>) = ? [pid 5714] +++ exited with 0 +++ [pid 5713] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5715 attached , child_tidptr=0x55557b776690) = 5715 [pid 5715] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5715] setpgid(0, 0) = 0 [pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5715] write(3, "1000", 4) = 4 [pid 5715] close(3) = 0 [pid 5715] write(1, "executing program\n", 18executing program ) = 18 [pid 5715] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5715] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5715] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5715] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5715] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5715] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5715] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5716 attached [pid 5716] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5715] <... clone3 resumed> => {parent_tid=[5716]}, 88) = 5716 [pid 5716] <... rseq resumed>) = 0 [pid 5715] rt_sigprocmask(SIG_SETMASK, [], [pid 5716] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5715] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5716] <... set_robust_list resumed>) = 0 [pid 5715] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5716] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5715] <... futex resumed>) = 0 [pid 5716] memfd_create("syzkaller", 0 [pid 5715] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5716] <... memfd_create resumed>) = 3 [pid 5716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5716] 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"..., 16777216) = 16777216 [pid 5716] munmap(0x7f3be0600000, 138412032) = 0 [pid 5716] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5716] ioctl(4, LOOP_CLR_FD) = 0 [pid 5716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5716] close(4) = 0 [pid 5716] close(3) = 0 [pid 5716] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5715] <... futex resumed>) = 0 [pid 5716] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5715] exit_group(0 [pid 5716] <... futex resumed>) = ? [pid 5715] <... exit_group resumed>) = ? [pid 5716] +++ exited with 0 +++ [pid 5715] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5715, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=26 /* 0.26 s */} --- 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 5717 attached [pid 5717] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 5717 [pid 5717] <... prctl resumed>) = 0 [pid 5717] setpgid(0, 0) = 0 [pid 5717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5717] write(3, "1000", 4) = 4 [pid 5717] close(3) = 0 executing program [pid 5717] write(1, "executing program\n", 18) = 18 [pid 5717] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5717] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5717] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5717] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5717] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5717] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5717] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5718 attached => {parent_tid=[5718]}, 88) = 5718 [pid 5717] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5718] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5717] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5718] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5717] <... futex resumed>) = 0 [pid 5718] <... set_robust_list resumed>) = 0 [pid 5717] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5718] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5718] memfd_create("syzkaller", 0) = 3 [pid 5718] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5718] 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"..., 16777216) = 16777216 [pid 5718] munmap(0x7f3be0600000, 138412032) = 0 [pid 5718] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5718] ioctl(4, LOOP_CLR_FD) = 0 [pid 5718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5718] close(4) = 0 [pid 5718] close(3) = 0 [pid 5718] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5717] <... futex resumed>) = 0 [pid 5718] <... futex resumed>) = 1 [pid 5717] exit_group(0 [pid 5718] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5717] <... exit_group resumed>) = ? [pid 5718] +++ exited with 0 +++ [pid 5717] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5717, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5719 attached , child_tidptr=0x55557b776690) = 5719 [pid 5719] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5719] setpgid(0, 0) = 0 [pid 5719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5719] write(3, "1000", 4) = 4 [pid 5719] close(3) = 0 executing program [pid 5719] write(1, "executing program\n", 18) = 18 [pid 5719] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5719] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5719] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5719] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5719] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5719] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5719] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5720 attached [pid 5720] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5719] <... clone3 resumed> => {parent_tid=[5720]}, 88) = 5720 [pid 5720] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5719] rt_sigprocmask(SIG_SETMASK, [], [pid 5720] rt_sigprocmask(SIG_SETMASK, [], [pid 5719] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5720] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5719] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5720] memfd_create("syzkaller", 0 [pid 5719] <... futex resumed>) = 0 [pid 5719] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5720] <... memfd_create resumed>) = 3 [pid 5720] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5720] 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"..., 16777216) = 16777216 [pid 5720] munmap(0x7f3be0600000, 138412032) = 0 [pid 5720] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5720] ioctl(4, LOOP_CLR_FD) = 0 [pid 5720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5720] close(4) = 0 [pid 5720] close(3) = 0 [pid 5720] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5719] <... futex resumed>) = 0 [pid 5719] exit_group(0 [pid 5720] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5719] <... exit_group resumed>) = ? [pid 5720] +++ exited with 0 +++ [pid 5719] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5719, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5721 attached , child_tidptr=0x55557b776690) = 5721 [pid 5721] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5721] setpgid(0, 0) = 0 [pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5721] write(3, "1000", 4) = 4 [pid 5721] close(3) = 0 [pid 5721] write(1, "executing program\n", 18executing program ) = 18 [pid 5721] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5721] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5721] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5721] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5721] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5721] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5722 attached [pid 5722] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5721] <... clone3 resumed> => {parent_tid=[5722]}, 88) = 5722 [pid 5722] <... rseq resumed>) = 0 [pid 5721] rt_sigprocmask(SIG_SETMASK, [], [pid 5722] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5721] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5722] <... set_robust_list resumed>) = 0 [pid 5721] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5722] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5721] <... futex resumed>) = 0 [pid 5722] memfd_create("syzkaller", 0 [pid 5721] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5722] <... memfd_create resumed>) = 3 [pid 5722] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5722] 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"..., 16777216) = 16777216 [pid 5722] munmap(0x7f3be0600000, 138412032) = 0 [pid 5722] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5722] ioctl(4, LOOP_CLR_FD) = 0 [pid 5722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5722] close(4) = 0 [pid 5722] close(3) = 0 [pid 5722] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5721] <... futex resumed>) = 0 [pid 5721] exit_group(0 [pid 5722] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5721] <... exit_group resumed>) = ? [pid 5722] +++ exited with 0 +++ [pid 5721] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5723 attached , child_tidptr=0x55557b776690) = 5723 [pid 5723] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5723] setpgid(0, 0) = 0 [pid 5723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5723] write(3, "1000", 4) = 4 [pid 5723] close(3) = 0 [pid 5723] write(1, "executing program\n", 18executing program ) = 18 [pid 5723] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5723] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5723] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5723] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5723] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5723] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5723] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5724 attached [pid 5724] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5723] <... clone3 resumed> => {parent_tid=[5724]}, 88) = 5724 [pid 5724] <... rseq resumed>) = 0 [pid 5723] rt_sigprocmask(SIG_SETMASK, [], [pid 5724] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5723] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5724] <... set_robust_list resumed>) = 0 [pid 5723] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5724] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5723] <... futex resumed>) = 0 [pid 5724] memfd_create("syzkaller", 0 [pid 5723] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5724] <... memfd_create resumed>) = 3 [pid 5724] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5724] 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"..., 16777216) = 16777216 [pid 5724] munmap(0x7f3be0600000, 138412032) = 0 [pid 5724] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5724] ioctl(4, LOOP_CLR_FD) = 0 [pid 5724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5724] close(4) = 0 [pid 5724] close(3) = 0 [pid 5724] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5723] <... futex resumed>) = 0 [pid 5723] exit_group(0 [pid 5724] <... futex resumed>) = ? [pid 5723] <... exit_group resumed>) = ? [pid 5724] +++ exited with 0 +++ [pid 5723] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5723, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5725 attached , child_tidptr=0x55557b776690) = 5725 [pid 5725] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5725] setpgid(0, 0) = 0 [pid 5725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5725] write(3, "1000", 4) = 4 [pid 5725] close(3) = 0 executing program [pid 5725] write(1, "executing program\n", 18) = 18 [pid 5725] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5725] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5725] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5725] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5725] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5725] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5726 attached [pid 5726] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5725] <... clone3 resumed> => {parent_tid=[5726]}, 88) = 5726 [pid 5726] <... rseq resumed>) = 0 [pid 5725] rt_sigprocmask(SIG_SETMASK, [], [pid 5726] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5725] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5726] <... set_robust_list resumed>) = 0 [pid 5725] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5726] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5725] <... futex resumed>) = 0 [pid 5726] memfd_create("syzkaller", 0 [pid 5725] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5726] <... memfd_create resumed>) = 3 [pid 5726] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5726] 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"..., 16777216) = 16777216 [pid 5726] munmap(0x7f3be0600000, 138412032) = 0 [pid 5726] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5726] ioctl(4, LOOP_CLR_FD) = 0 [pid 5726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5726] close(4) = 0 [pid 5726] close(3) = 0 [pid 5726] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5725] <... futex resumed>) = 0 [pid 5725] exit_group(0 [pid 5726] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5725] <... exit_group resumed>) = ? [pid 5726] +++ exited with 0 +++ [pid 5725] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5725, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5727 attached , child_tidptr=0x55557b776690) = 5727 [pid 5727] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5727] setpgid(0, 0) = 0 [pid 5727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5727] write(3, "1000", 4) = 4 [pid 5727] close(3) = 0 executing program [pid 5727] write(1, "executing program\n", 18) = 18 [pid 5727] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5727] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5727] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5727] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5727] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5727] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5727] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5728 attached => {parent_tid=[5728]}, 88) = 5728 [pid 5728] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5727] rt_sigprocmask(SIG_SETMASK, [], [pid 5728] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5727] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5728] <... set_robust_list resumed>) = 0 [pid 5727] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5728] rt_sigprocmask(SIG_SETMASK, [], [pid 5727] <... futex resumed>) = 0 [pid 5728] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5727] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5728] memfd_create("syzkaller", 0) = 3 [pid 5728] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5728] 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"..., 16777216) = 16777216 [pid 5728] munmap(0x7f3be0600000, 138412032) = 0 [pid 5728] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5728] ioctl(4, LOOP_CLR_FD) = 0 [pid 5728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5728] close(4) = 0 [pid 5728] close(3) = 0 [pid 5728] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5727] <... futex resumed>) = 0 [pid 5728] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5727] exit_group(0 [pid 5728] <... futex resumed>) = ? [pid 5728] +++ exited with 0 +++ [pid 5727] <... exit_group resumed>) = ? [pid 5727] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5727, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5729 attached , child_tidptr=0x55557b776690) = 5729 [pid 5729] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5729] setpgid(0, 0) = 0 [pid 5729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5729] write(3, "1000", 4) = 4 [pid 5729] close(3) = 0 executing program [pid 5729] write(1, "executing program\n", 18) = 18 [pid 5729] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5729] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5729] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5729] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5729] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5729] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5729] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5730 attached [pid 5730] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5729] <... clone3 resumed> => {parent_tid=[5730]}, 88) = 5730 [pid 5730] <... rseq resumed>) = 0 [pid 5729] rt_sigprocmask(SIG_SETMASK, [], [pid 5730] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5729] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5730] <... set_robust_list resumed>) = 0 [pid 5729] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5730] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5729] <... futex resumed>) = 0 [pid 5730] memfd_create("syzkaller", 0 [pid 5729] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5730] <... memfd_create resumed>) = 3 [pid 5730] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5730] 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"..., 16777216) = 16777216 [pid 5730] munmap(0x7f3be0600000, 138412032) = 0 [pid 5730] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5730] ioctl(4, LOOP_CLR_FD) = 0 [pid 5730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5730] close(4) = 0 [pid 5730] close(3) = 0 [pid 5730] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5729] <... futex resumed>) = 0 [pid 5730] <... futex resumed>) = 1 [pid 5729] exit_group(0) = ? [pid 5730] +++ exited with 0 +++ [pid 5729] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5729, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5731 attached , child_tidptr=0x55557b776690) = 5731 [pid 5731] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5731] setpgid(0, 0) = 0 [pid 5731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5731] write(3, "1000", 4) = 4 [pid 5731] close(3) = 0 [pid 5731] write(1, "executing program\n", 18executing program ) = 18 [pid 5731] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5731] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5731] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5731] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5731] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5731] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5732 attached => {parent_tid=[5732]}, 88) = 5732 [pid 5732] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5732] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5732] rt_sigprocmask(SIG_SETMASK, [], [pid 5731] rt_sigprocmask(SIG_SETMASK, [], [pid 5732] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5731] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5732] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5731] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5731] <... futex resumed>) = 0 [pid 5732] memfd_create("syzkaller", 0 [pid 5731] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5732] <... memfd_create resumed>) = 3 [pid 5732] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5732] 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"..., 16777216) = 16777216 [pid 5732] munmap(0x7f3be0600000, 138412032) = 0 [pid 5732] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5732] ioctl(4, LOOP_CLR_FD) = 0 [pid 5732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5732] close(4) = 0 [pid 5732] close(3) = 0 [pid 5732] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5731] <... futex resumed>) = 0 [pid 5732] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5731] exit_group(0 [pid 5732] <... futex resumed>) = ? [pid 5731] <... exit_group resumed>) = ? [pid 5732] +++ exited with 0 +++ [pid 5731] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5731, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5733 attached , child_tidptr=0x55557b776690) = 5733 [pid 5733] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5733] setpgid(0, 0) = 0 [pid 5733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5733] write(3, "1000", 4) = 4 [pid 5733] close(3) = 0 executing program [pid 5733] write(1, "executing program\n", 18) = 18 [pid 5733] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5733] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5733] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5733] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5733] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5733] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5733] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5734 attached => {parent_tid=[5734]}, 88) = 5734 [pid 5734] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5733] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5733] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5734] <... rseq resumed>) = 0 [pid 5734] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5734] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5734] memfd_create("syzkaller", 0) = 3 [pid 5734] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5734] 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"..., 16777216) = 16777216 [pid 5734] munmap(0x7f3be0600000, 138412032) = 0 [pid 5734] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5734] ioctl(4, LOOP_CLR_FD) = 0 [pid 5734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5734] close(4) = 0 [pid 5734] close(3) = 0 [pid 5734] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5733] <... futex resumed>) = 0 [pid 5734] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5733] exit_group(0) = ? [pid 5734] <... futex resumed>) = ? [pid 5734] +++ exited with 0 +++ [pid 5733] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5733, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5735 attached , child_tidptr=0x55557b776690) = 5735 [pid 5735] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5735] setpgid(0, 0) = 0 [pid 5735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5735] write(3, "1000", 4) = 4 [pid 5735] close(3) = 0 [pid 5735] write(1, "executing program\n", 18executing program ) = 18 [pid 5735] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5735] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5735] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5735] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5735] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5735] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5735] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5736 attached [pid 5736] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5735] <... clone3 resumed> => {parent_tid=[5736]}, 88) = 5736 [pid 5736] <... rseq resumed>) = 0 [pid 5735] rt_sigprocmask(SIG_SETMASK, [], [pid 5736] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5735] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5736] <... set_robust_list resumed>) = 0 [pid 5735] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5736] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5735] <... futex resumed>) = 0 [pid 5736] memfd_create("syzkaller", 0 [pid 5735] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5736] <... memfd_create resumed>) = 3 [pid 5736] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5736] 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"..., 16777216) = 16777216 [pid 5736] munmap(0x7f3be0600000, 138412032) = 0 [pid 5736] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5736] ioctl(4, LOOP_CLR_FD) = 0 [pid 5736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5736] close(4) = 0 [pid 5736] close(3) = 0 [pid 5736] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5735] <... futex resumed>) = 0 [pid 5736] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5735] exit_group(0 [pid 5736] <... futex resumed>) = ? [pid 5735] <... exit_group resumed>) = ? [pid 5736] +++ exited with 0 +++ [pid 5735] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5735, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5737 attached , child_tidptr=0x55557b776690) = 5737 [pid 5737] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5737] setpgid(0, 0) = 0 [pid 5737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5737] write(3, "1000", 4) = 4 [pid 5737] close(3) = 0 executing program [pid 5737] write(1, "executing program\n", 18) = 18 [pid 5737] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5737] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5737] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5737] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5737] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5737] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5737] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5738 attached [pid 5738] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5737] <... clone3 resumed> => {parent_tid=[5738]}, 88) = 5738 [pid 5738] <... rseq resumed>) = 0 [pid 5737] rt_sigprocmask(SIG_SETMASK, [], [pid 5738] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5737] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5738] <... set_robust_list resumed>) = 0 [pid 5737] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5738] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5737] <... futex resumed>) = 0 [pid 5737] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5738] memfd_create("syzkaller", 0) = 3 [pid 5738] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5738] 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"..., 16777216) = 16777216 [pid 5738] munmap(0x7f3be0600000, 138412032) = 0 [pid 5738] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5738] ioctl(4, LOOP_CLR_FD) = 0 [pid 5738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5738] close(4) = 0 [pid 5738] close(3) = 0 [pid 5738] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5738] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5737] <... futex resumed>) = 0 [pid 5737] exit_group(0) = ? [pid 5738] <... futex resumed>) = ? [pid 5738] +++ exited with 0 +++ [pid 5737] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5737, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5739 attached , child_tidptr=0x55557b776690) = 5739 [pid 5739] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5739] setpgid(0, 0) = 0 [pid 5739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5739] write(3, "1000", 4) = 4 [pid 5739] close(3) = 0 executing program [pid 5739] write(1, "executing program\n", 18) = 18 [pid 5739] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5739] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5739] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5739] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5739] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5739] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5739] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5740 attached [pid 5740] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5739] <... clone3 resumed> => {parent_tid=[5740]}, 88) = 5740 [pid 5740] <... rseq resumed>) = 0 [pid 5739] rt_sigprocmask(SIG_SETMASK, [], [pid 5740] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5739] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5740] <... set_robust_list resumed>) = 0 [pid 5739] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5739] <... futex resumed>) = 0 [pid 5740] memfd_create("syzkaller", 0 [pid 5739] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5740] <... memfd_create resumed>) = 3 [pid 5740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5740] 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"..., 16777216) = 16777216 [pid 5740] munmap(0x7f3be0600000, 138412032) = 0 [pid 5740] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5740] ioctl(4, LOOP_CLR_FD) = 0 [pid 5740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5740] close(4) = 0 [pid 5740] close(3) = 0 [pid 5740] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5739] <... futex resumed>) = 0 [pid 5739] exit_group(0 [pid 5740] <... futex resumed>) = ? [pid 5739] <... exit_group resumed>) = ? [pid 5740] +++ exited with 0 +++ [pid 5739] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5739, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5741 attached , child_tidptr=0x55557b776690) = 5741 [pid 5741] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5741] setpgid(0, 0) = 0 [pid 5741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5741] write(3, "1000", 4) = 4 [pid 5741] close(3) = 0 [pid 5741] write(1, "executing program\n", 18executing program ) = 18 [pid 5741] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5741] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5741] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5741] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5741] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5741] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5741] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5742 attached [pid 5742] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5741] <... clone3 resumed> => {parent_tid=[5742]}, 88) = 5742 [pid 5742] <... rseq resumed>) = 0 [pid 5741] rt_sigprocmask(SIG_SETMASK, [], [pid 5742] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5741] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5742] <... set_robust_list resumed>) = 0 [pid 5741] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5741] <... futex resumed>) = 0 [pid 5742] memfd_create("syzkaller", 0 [pid 5741] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5742] <... memfd_create resumed>) = 3 [pid 5742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5742] 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"..., 16777216) = 16777216 [pid 5742] munmap(0x7f3be0600000, 138412032) = 0 [pid 5742] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5742] ioctl(4, LOOP_CLR_FD) = 0 [pid 5742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5742] close(4) = 0 [pid 5742] close(3) = 0 [pid 5742] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5741] <... futex resumed>) = 0 [pid 5742] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5741] exit_group(0 [pid 5742] <... futex resumed>) = ? [pid 5741] <... exit_group resumed>) = ? [pid 5742] +++ exited with 0 +++ [pid 5741] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5741, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5743 attached , child_tidptr=0x55557b776690) = 5743 [pid 5743] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5743] setpgid(0, 0) = 0 [pid 5743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5743] write(3, "1000", 4) = 4 [pid 5743] close(3) = 0 executing program [pid 5743] write(1, "executing program\n", 18) = 18 [pid 5743] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5743] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5743] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5743] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5743] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5743] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5743] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5744 attached => {parent_tid=[5744]}, 88) = 5744 [pid 5744] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5743] rt_sigprocmask(SIG_SETMASK, [], [pid 5744] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5743] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5744] <... set_robust_list resumed>) = 0 [pid 5743] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5744] rt_sigprocmask(SIG_SETMASK, [], [pid 5743] <... futex resumed>) = 0 [pid 5744] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5743] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5744] memfd_create("syzkaller", 0) = 3 [pid 5744] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5744] 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"..., 16777216) = 16777216 [pid 5744] munmap(0x7f3be0600000, 138412032) = 0 [pid 5744] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5744] ioctl(4, LOOP_CLR_FD) = 0 [pid 5744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5744] close(4) = 0 [pid 5744] close(3) = 0 [pid 5744] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5743] <... futex resumed>) = 0 [pid 5743] exit_group(0 [pid 5744] <... futex resumed>) = ? [pid 5743] <... exit_group resumed>) = ? [pid 5744] +++ exited with 0 +++ [pid 5743] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5743, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5745 attached , child_tidptr=0x55557b776690) = 5745 [pid 5745] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5745] setpgid(0, 0) = 0 [pid 5745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5745] write(3, "1000", 4) = 4 [pid 5745] close(3) = 0 executing program [pid 5745] write(1, "executing program\n", 18) = 18 [pid 5745] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5745] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5745] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5745] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5745] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5745] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5746 attached [pid 5746] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5745] <... clone3 resumed> => {parent_tid=[5746]}, 88) = 5746 [pid 5746] <... rseq resumed>) = 0 [pid 5745] rt_sigprocmask(SIG_SETMASK, [], [pid 5746] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5745] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5746] <... set_robust_list resumed>) = 0 [pid 5745] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5745] <... futex resumed>) = 0 [pid 5746] memfd_create("syzkaller", 0 [pid 5745] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5746] <... memfd_create resumed>) = 3 [pid 5746] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5746] 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"..., 16777216) = 16777216 [pid 5746] munmap(0x7f3be0600000, 138412032) = 0 [pid 5746] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5746] ioctl(4, LOOP_CLR_FD) = 0 [pid 5746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5746] close(4) = 0 [pid 5746] close(3) = 0 [pid 5746] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5745] <... futex resumed>) = 0 [pid 5745] exit_group(0 [pid 5746] <... futex resumed>) = ? [pid 5745] <... exit_group resumed>) = ? [pid 5746] +++ exited with 0 +++ [pid 5745] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5745, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5747 attached , child_tidptr=0x55557b776690) = 5747 [pid 5747] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5747] setpgid(0, 0) = 0 [pid 5747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5747] write(3, "1000", 4) = 4 [pid 5747] close(3) = 0 [pid 5747] write(1, "executing program\n", 18executing program ) = 18 [pid 5747] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5747] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5747] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5747] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5747] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5747] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5747] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5748 attached => {parent_tid=[5748]}, 88) = 5748 [pid 5747] rt_sigprocmask(SIG_SETMASK, [], [pid 5748] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5747] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5747] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5747] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5748] <... rseq resumed>) = 0 [pid 5748] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5748] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5748] memfd_create("syzkaller", 0) = 3 [pid 5748] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5748] 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"..., 16777216) = 16777216 [pid 5748] munmap(0x7f3be0600000, 138412032) = 0 [pid 5748] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5748] ioctl(4, LOOP_CLR_FD) = 0 [pid 5748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5748] close(4) = 0 [pid 5748] close(3) = 0 [pid 5748] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5748] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5747] <... futex resumed>) = 0 [pid 5747] exit_group(0 [pid 5748] <... futex resumed>) = ? [pid 5747] <... exit_group resumed>) = ? [pid 5748] +++ exited with 0 +++ [pid 5747] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5747, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5749 attached , child_tidptr=0x55557b776690) = 5749 [pid 5749] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5749] setpgid(0, 0) = 0 [pid 5749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5749] write(3, "1000", 4) = 4 [pid 5749] close(3) = 0 executing program [pid 5749] write(1, "executing program\n", 18) = 18 [pid 5749] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5749] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5749] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5749] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5749] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5749] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5749] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5750 attached [pid 5750] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5749] <... clone3 resumed> => {parent_tid=[5750]}, 88) = 5750 [pid 5750] <... rseq resumed>) = 0 [pid 5749] rt_sigprocmask(SIG_SETMASK, [], [pid 5750] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5749] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5750] <... set_robust_list resumed>) = 0 [pid 5749] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5749] <... futex resumed>) = 0 [pid 5750] memfd_create("syzkaller", 0 [pid 5749] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5750] <... memfd_create resumed>) = 3 [pid 5750] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5750] 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"..., 16777216) = 16777216 [pid 5750] munmap(0x7f3be0600000, 138412032) = 0 [pid 5750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5750] ioctl(4, LOOP_CLR_FD) = 0 [pid 5750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5750] close(4) = 0 [pid 5750] close(3) = 0 [pid 5750] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5749] <... futex resumed>) = 0 [pid 5750] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5749] exit_group(0 [pid 5750] <... futex resumed>) = ? [pid 5749] <... exit_group resumed>) = ? [pid 5750] +++ exited with 0 +++ [pid 5749] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5749, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5751 attached , child_tidptr=0x55557b776690) = 5751 [pid 5751] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5751] setpgid(0, 0) = 0 [pid 5751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5751] write(3, "1000", 4) = 4 [pid 5751] close(3) = 0 [pid 5751] write(1, "executing program\n", 18executing program ) = 18 [pid 5751] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5751] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5751] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5751] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5751] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5751] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5751] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5752 attached => {parent_tid=[5752]}, 88) = 5752 [pid 5751] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5752] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5751] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5752] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5751] <... futex resumed>) = 0 [pid 5752] <... set_robust_list resumed>) = 0 [pid 5751] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5752] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5752] memfd_create("syzkaller", 0) = 3 [pid 5752] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5752] 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"..., 16777216) = 16777216 [pid 5752] munmap(0x7f3be0600000, 138412032) = 0 [pid 5752] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5752] ioctl(4, LOOP_CLR_FD) = 0 [pid 5752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5752] close(4) = 0 [pid 5752] close(3) = 0 [pid 5752] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5751] <... futex resumed>) = 0 [pid 5752] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5751] exit_group(0 [pid 5752] <... futex resumed>) = ? [pid 5751] <... exit_group resumed>) = ? [pid 5752] +++ exited with 0 +++ [pid 5751] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5751, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5753 attached , child_tidptr=0x55557b776690) = 5753 [pid 5753] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5753] setpgid(0, 0) = 0 [pid 5753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5753] write(3, "1000", 4) = 4 [pid 5753] close(3) = 0 executing program [pid 5753] write(1, "executing program\n", 18) = 18 [pid 5753] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5753] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5753] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5753] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5753] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5753] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5753] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5754 attached [pid 5754] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5753] <... clone3 resumed> => {parent_tid=[5754]}, 88) = 5754 [pid 5754] <... rseq resumed>) = 0 [pid 5753] rt_sigprocmask(SIG_SETMASK, [], [pid 5754] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5753] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5754] <... set_robust_list resumed>) = 0 [pid 5754] rt_sigprocmask(SIG_SETMASK, [], [pid 5753] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5754] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5753] <... futex resumed>) = 0 [pid 5754] memfd_create("syzkaller", 0 [pid 5753] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5754] <... memfd_create resumed>) = 3 [pid 5754] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5754] 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"..., 16777216) = 16777216 [pid 5754] munmap(0x7f3be0600000, 138412032) = 0 [pid 5754] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5754] ioctl(4, LOOP_CLR_FD) = 0 [pid 5754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5754] close(4) = 0 [pid 5754] close(3) = 0 [pid 5754] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5753] <... futex resumed>) = 0 [pid 5753] exit_group(0) = ? [pid 5754] <... futex resumed>) = ? [pid 5754] +++ exited with 0 +++ [pid 5753] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5753, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5755 attached , child_tidptr=0x55557b776690) = 5755 [pid 5755] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5755] setpgid(0, 0) = 0 [pid 5755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5755] write(3, "1000", 4) = 4 [pid 5755] close(3) = 0 [pid 5755] write(1, "executing program\n", 18executing program ) = 18 [pid 5755] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5755] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5755] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5755] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5755] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5755] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5755] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5756 attached [pid 5756] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5755] <... clone3 resumed> => {parent_tid=[5756]}, 88) = 5756 [pid 5756] <... rseq resumed>) = 0 [pid 5755] rt_sigprocmask(SIG_SETMASK, [], [pid 5756] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5755] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5756] <... set_robust_list resumed>) = 0 [pid 5755] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5756] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5755] <... futex resumed>) = 0 [pid 5756] memfd_create("syzkaller", 0 [pid 5755] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5756] <... memfd_create resumed>) = 3 [pid 5756] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5756] 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"..., 16777216) = 16777216 [pid 5756] munmap(0x7f3be0600000, 138412032) = 0 [pid 5756] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5756] ioctl(4, LOOP_CLR_FD) = 0 [pid 5756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5756] close(4) = 0 [pid 5756] close(3) = 0 [pid 5756] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5755] <... futex resumed>) = 0 [pid 5756] <... futex resumed>) = 1 [pid 5755] exit_group(0) = ? [pid 5756] +++ exited with 0 +++ [pid 5755] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5755, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5757 attached , child_tidptr=0x55557b776690) = 5757 [pid 5757] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5757] setpgid(0, 0) = 0 [pid 5757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5757] write(3, "1000", 4) = 4 [pid 5757] close(3) = 0 [pid 5757] write(1, "executing program\n", 18executing program ) = 18 [pid 5757] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5757] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5757] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5757] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5757] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5757] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5758 attached [pid 5758] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5757] <... clone3 resumed> => {parent_tid=[5758]}, 88) = 5758 [pid 5758] <... rseq resumed>) = 0 [pid 5758] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5757] rt_sigprocmask(SIG_SETMASK, [], [pid 5758] <... set_robust_list resumed>) = 0 [pid 5757] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5758] rt_sigprocmask(SIG_SETMASK, [], [pid 5757] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5758] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5757] <... futex resumed>) = 0 [pid 5758] memfd_create("syzkaller", 0 [pid 5757] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5758] <... memfd_create resumed>) = 3 [pid 5758] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5758] 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"..., 16777216) = 16777216 [pid 5758] munmap(0x7f3be0600000, 138412032) = 0 [pid 5758] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5758] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5758] ioctl(4, LOOP_CLR_FD) = 0 [pid 5758] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5758] close(4) = 0 [pid 5758] close(3) = 0 [pid 5758] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5758] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5757] <... futex resumed>) = 0 [pid 5757] exit_group(0 [pid 5758] <... futex resumed>) = ? [pid 5757] <... exit_group resumed>) = ? [pid 5758] +++ exited with 0 +++ [pid 5757] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5757, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5759 attached , child_tidptr=0x55557b776690) = 5759 [pid 5759] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5759] setpgid(0, 0) = 0 [pid 5759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5759] write(3, "1000", 4) = 4 [pid 5759] close(3) = 0 [pid 5759] write(1, "executing program\n", 18executing program ) = 18 [pid 5759] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5759] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5759] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5759] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5759] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5759] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5759] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5760 attached [pid 5760] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5759] <... clone3 resumed> => {parent_tid=[5760]}, 88) = 5760 [pid 5760] <... rseq resumed>) = 0 [pid 5759] rt_sigprocmask(SIG_SETMASK, [], [pid 5760] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5759] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5760] <... set_robust_list resumed>) = 0 [pid 5759] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5760] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5759] <... futex resumed>) = 0 [pid 5760] memfd_create("syzkaller", 0 [pid 5759] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5760] <... memfd_create resumed>) = 3 [pid 5760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5760] 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"..., 16777216) = 16777216 [pid 5760] munmap(0x7f3be0600000, 138412032) = 0 [pid 5760] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5760] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5760] ioctl(4, LOOP_CLR_FD) = 0 [pid 5760] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5760] close(4) = 0 [pid 5760] close(3) = 0 [pid 5760] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5759] <... futex resumed>) = 0 [pid 5760] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5759] exit_group(0 [pid 5760] <... futex resumed>) = ? [pid 5759] <... exit_group resumed>) = ? [pid 5760] +++ exited with 0 +++ [pid 5759] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5759, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5761 attached , child_tidptr=0x55557b776690) = 5761 [pid 5761] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5761] setpgid(0, 0) = 0 [pid 5761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5761] write(3, "1000", 4) = 4 [pid 5761] close(3) = 0 [pid 5761] write(1, "executing program\n", 18executing program ) = 18 [pid 5761] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5761] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5761] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5761] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5761] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5761] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5762 attached [pid 5762] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5761] <... clone3 resumed> => {parent_tid=[5762]}, 88) = 5762 [pid 5762] <... rseq resumed>) = 0 [pid 5761] rt_sigprocmask(SIG_SETMASK, [], [pid 5762] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5761] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5762] <... set_robust_list resumed>) = 0 [pid 5761] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5762] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5761] <... futex resumed>) = 0 [pid 5761] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5762] memfd_create("syzkaller", 0) = 3 [pid 5762] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5762] 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"..., 16777216) = 16777216 [pid 5762] munmap(0x7f3be0600000, 138412032) = 0 [pid 5762] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5762] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5762] ioctl(4, LOOP_CLR_FD) = 0 [pid 5762] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5762] close(4) = 0 [pid 5762] close(3) = 0 [pid 5762] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5761] <... futex resumed>) = 0 [pid 5762] <... futex resumed>) = 1 [pid 5761] exit_group(0 [pid 5762] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5762] +++ exited with 0 +++ [pid 5761] <... exit_group resumed>) = ? [pid 5761] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5761, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5763 attached , child_tidptr=0x55557b776690) = 5763 [pid 5763] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5763] setpgid(0, 0) = 0 [pid 5763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5763] write(3, "1000", 4) = 4 [pid 5763] close(3) = 0 [pid 5763] write(1, "executing program\n", 18executing program ) = 18 [pid 5763] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5763] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5763] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5763] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5763] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5763] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5764 attached [pid 5764] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5763] <... clone3 resumed> => {parent_tid=[5764]}, 88) = 5764 [pid 5764] <... rseq resumed>) = 0 [pid 5763] rt_sigprocmask(SIG_SETMASK, [], [pid 5764] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5763] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5764] <... set_robust_list resumed>) = 0 [pid 5763] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5764] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5763] <... futex resumed>) = 0 [pid 5764] memfd_create("syzkaller", 0 [pid 5763] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5764] <... memfd_create resumed>) = 3 [pid 5764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5764] 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"..., 16777216) = 16777216 [pid 5764] munmap(0x7f3be0600000, 138412032) = 0 [pid 5764] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5764] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5764] ioctl(4, LOOP_CLR_FD) = 0 [pid 5764] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5764] close(4) = 0 [pid 5764] close(3) = 0 [pid 5764] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5763] <... futex resumed>) = 0 [pid 5764] <... futex resumed>) = 1 [pid 5763] exit_group(0 [pid 5764] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5763] <... exit_group resumed>) = ? [pid 5764] +++ exited with 0 +++ [pid 5763] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5763, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- 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 5765 attached , child_tidptr=0x55557b776690) = 5765 [pid 5765] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5765] setpgid(0, 0) = 0 [pid 5765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5765] write(3, "1000", 4) = 4 [pid 5765] close(3) = 0 [pid 5765] write(1, "executing program\n", 18executing program ) = 18 [pid 5765] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5765] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5765] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5765] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5765] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5765] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5765] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5766 attached [pid 5766] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5765] <... clone3 resumed> => {parent_tid=[5766]}, 88) = 5766 [pid 5766] <... rseq resumed>) = 0 [pid 5765] rt_sigprocmask(SIG_SETMASK, [], [pid 5766] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5765] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5766] <... set_robust_list resumed>) = 0 [pid 5765] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5766] rt_sigprocmask(SIG_SETMASK, [], [pid 5765] <... futex resumed>) = 0 [pid 5766] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5766] memfd_create("syzkaller", 0 [pid 5765] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5766] <... memfd_create resumed>) = 3 [pid 5766] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5766] 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"..., 16777216) = 16777216 [pid 5766] munmap(0x7f3be0600000, 138412032) = 0 [pid 5766] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5766] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5766] ioctl(4, LOOP_CLR_FD) = 0 [pid 5766] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5766] close(4) = 0 [pid 5766] close(3) = 0 [pid 5766] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5765] <... futex resumed>) = 0 [pid 5765] exit_group(0 [pid 5766] <... futex resumed>) = ? [pid 5765] <... exit_group resumed>) = ? [pid 5766] +++ exited with 0 +++ [pid 5765] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5765, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5767 attached , child_tidptr=0x55557b776690) = 5767 [pid 5767] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5767] setpgid(0, 0) = 0 [pid 5767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5767] write(3, "1000", 4) = 4 [pid 5767] close(3) = 0 executing program [pid 5767] write(1, "executing program\n", 18) = 18 [pid 5767] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5767] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5767] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5767] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5767] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5767] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5767] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5768 attached [pid 5768] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5767] <... clone3 resumed> => {parent_tid=[5768]}, 88) = 5768 [pid 5768] <... rseq resumed>) = 0 [pid 5767] rt_sigprocmask(SIG_SETMASK, [], [pid 5768] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5767] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5768] <... set_robust_list resumed>) = 0 [pid 5767] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5768] rt_sigprocmask(SIG_SETMASK, [], [pid 5767] <... futex resumed>) = 0 [pid 5768] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5767] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5768] memfd_create("syzkaller", 0) = 3 [pid 5768] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5768] 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"..., 16777216) = 16777216 [pid 5768] munmap(0x7f3be0600000, 138412032) = 0 [pid 5768] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5768] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5768] ioctl(4, LOOP_CLR_FD) = 0 [pid 5768] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5768] close(4) = 0 [pid 5768] close(3) = 0 [pid 5768] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5767] <... futex resumed>) = 0 [pid 5767] exit_group(0) = ? [pid 5768] <... futex resumed>) = ? [pid 5768] +++ exited with 0 +++ [pid 5767] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5767, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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=0x55557b776690) = 5769 ./strace-static-x86_64: Process 5769 attached [pid 5769] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5769] setpgid(0, 0) = 0 [pid 5769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5769] write(3, "1000", 4) = 4 [pid 5769] close(3) = 0 executing program [pid 5769] write(1, "executing program\n", 18) = 18 [pid 5769] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5769] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5769] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5769] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5769] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5769] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5769] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5770 attached [pid 5770] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5769] <... clone3 resumed> => {parent_tid=[5770]}, 88) = 5770 [pid 5770] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5769] rt_sigprocmask(SIG_SETMASK, [], [pid 5770] <... set_robust_list resumed>) = 0 [pid 5769] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5770] rt_sigprocmask(SIG_SETMASK, [], [pid 5769] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5770] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5769] <... futex resumed>) = 0 [pid 5770] memfd_create("syzkaller", 0 [pid 5769] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5770] <... memfd_create resumed>) = 3 [pid 5770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5770] 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"..., 16777216) = 16777216 [pid 5770] munmap(0x7f3be0600000, 138412032) = 0 [pid 5770] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5770] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5770] ioctl(4, LOOP_CLR_FD) = 0 [pid 5770] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5770] close(4) = 0 [pid 5770] close(3) = 0 [pid 5770] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5769] <... futex resumed>) = 0 [pid 5769] exit_group(0) = ? [pid 5770] +++ exited with 0 +++ [pid 5769] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5769, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5771 attached , child_tidptr=0x55557b776690) = 5771 [pid 5771] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5771] setpgid(0, 0) = 0 [pid 5771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5771] write(3, "1000", 4) = 4 [pid 5771] close(3) = 0 [pid 5771] write(1, "executing program\n", 18executing program ) = 18 [pid 5771] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5771] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5771] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5771] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5771] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5771] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5771] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5772 attached [pid 5772] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5771] <... clone3 resumed> => {parent_tid=[5772]}, 88) = 5772 [pid 5772] <... rseq resumed>) = 0 [pid 5771] rt_sigprocmask(SIG_SETMASK, [], [pid 5772] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5771] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5772] <... set_robust_list resumed>) = 0 [pid 5772] rt_sigprocmask(SIG_SETMASK, [], [pid 5771] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5772] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5771] <... futex resumed>) = 0 [pid 5771] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5772] memfd_create("syzkaller", 0) = 3 [pid 5772] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5772] 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"..., 16777216) = 16777216 [pid 5772] munmap(0x7f3be0600000, 138412032) = 0 [pid 5772] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5772] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5772] ioctl(4, LOOP_CLR_FD) = 0 [pid 5772] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5772] close(4) = 0 [pid 5772] close(3) = 0 [pid 5772] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5772] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5771] <... futex resumed>) = 0 [pid 5771] exit_group(0 [pid 5772] <... futex resumed>) = ? [pid 5771] <... exit_group resumed>) = ? [pid 5772] +++ exited with 0 +++ [pid 5771] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5771, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5773 attached , child_tidptr=0x55557b776690) = 5773 [pid 5773] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5773] setpgid(0, 0) = 0 [pid 5773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5773] write(3, "1000", 4) = 4 [pid 5773] close(3) = 0 executing program [pid 5773] write(1, "executing program\n", 18) = 18 [pid 5773] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5773] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5773] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5773] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5773] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5773] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5773] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5774 attached [pid 5774] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5773] <... clone3 resumed> => {parent_tid=[5774]}, 88) = 5774 [pid 5774] <... rseq resumed>) = 0 [pid 5773] rt_sigprocmask(SIG_SETMASK, [], [pid 5774] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5773] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5774] <... set_robust_list resumed>) = 0 [pid 5773] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5774] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5773] <... futex resumed>) = 0 [pid 5773] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5774] memfd_create("syzkaller", 0) = 3 [pid 5774] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5774] 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"..., 16777216) = 16777216 [pid 5774] munmap(0x7f3be0600000, 138412032) = 0 [pid 5774] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5774] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5774] ioctl(4, LOOP_CLR_FD) = 0 [pid 5774] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5774] close(4) = 0 [pid 5774] close(3) = 0 [pid 5774] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5773] <... futex resumed>) = 0 [pid 5774] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5773] exit_group(0 [pid 5774] <... futex resumed>) = ? [pid 5774] +++ exited with 0 +++ [pid 5773] <... exit_group resumed>) = ? [pid 5773] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5773, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5775 attached , child_tidptr=0x55557b776690) = 5775 [pid 5775] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5775] setpgid(0, 0) = 0 [pid 5775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5775] write(3, "1000", 4) = 4 [pid 5775] close(3) = 0 executing program [pid 5775] write(1, "executing program\n", 18) = 18 [pid 5775] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5775] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5775] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5775] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5775] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5775] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5775] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5776 attached => {parent_tid=[5776]}, 88) = 5776 [pid 5776] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5776] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5776] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5775] rt_sigprocmask(SIG_SETMASK, [], [pid 5776] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5775] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5775] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5776] <... futex resumed>) = 0 [pid 5775] <... futex resumed>) = 1 [pid 5776] memfd_create("syzkaller", 0 [pid 5775] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5776] <... memfd_create resumed>) = 3 [pid 5776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5776] 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"..., 16777216) = 16777216 [pid 5776] munmap(0x7f3be0600000, 138412032) = 0 [pid 5776] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5776] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5776] ioctl(4, LOOP_CLR_FD) = 0 [pid 5776] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5776] close(4) = 0 [pid 5776] close(3) = 0 [pid 5776] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5775] <... futex resumed>) = 0 [pid 5775] exit_group(0 [pid 5776] <... futex resumed>) = ? [pid 5775] <... exit_group resumed>) = ? [pid 5776] +++ exited with 0 +++ [pid 5775] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5775, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5777 attached , child_tidptr=0x55557b776690) = 5777 [pid 5777] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5777] setpgid(0, 0) = 0 [pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5777] write(3, "1000", 4) = 4 [pid 5777] close(3) = 0 [pid 5777] write(1, "executing program\n", 18executing program ) = 18 [pid 5777] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5777] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5777] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5777] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5777] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5777] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5778 attached => {parent_tid=[5778]}, 88) = 5778 [pid 5777] rt_sigprocmask(SIG_SETMASK, [], [pid 5778] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5777] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5778] <... rseq resumed>) = 0 [pid 5777] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5778] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5777] <... futex resumed>) = 0 [pid 5778] <... set_robust_list resumed>) = 0 [pid 5778] rt_sigprocmask(SIG_SETMASK, [], [pid 5777] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5778] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5778] memfd_create("syzkaller", 0) = 3 [pid 5778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5778] 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"..., 16777216) = 16777216 [pid 5778] munmap(0x7f3be0600000, 138412032) = 0 [pid 5778] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5778] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5778] ioctl(4, LOOP_CLR_FD) = 0 [pid 5778] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5778] close(4) = 0 [pid 5778] close(3) = 0 [pid 5778] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5777] <... futex resumed>) = 0 [pid 5778] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5777] exit_group(0 [pid 5778] <... futex resumed>) = ? [pid 5777] <... exit_group resumed>) = ? [pid 5778] +++ exited with 0 +++ [pid 5777] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 5779 attached , child_tidptr=0x55557b776690) = 5779 [pid 5779] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5779] setpgid(0, 0) = 0 [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1000", 4) = 4 [pid 5779] close(3) = 0 [pid 5779] write(1, "executing program\n", 18executing program ) = 18 [pid 5779] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5779] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5779] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5779] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5779] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5779] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5780 attached [pid 5780] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5779] <... clone3 resumed> => {parent_tid=[5780]}, 88) = 5780 [pid 5780] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5779] rt_sigprocmask(SIG_SETMASK, [], [pid 5780] <... set_robust_list resumed>) = 0 [pid 5780] rt_sigprocmask(SIG_SETMASK, [], [pid 5779] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5780] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5779] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5780] memfd_create("syzkaller", 0 [pid 5779] <... futex resumed>) = 0 [pid 5780] <... memfd_create resumed>) = 3 [pid 5780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5779] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5780] 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"..., 16777216) = 16777216 [pid 5780] munmap(0x7f3be0600000, 138412032) = 0 [pid 5780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5780] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5780] ioctl(4, LOOP_CLR_FD) = 0 [pid 5780] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5780] close(4) = 0 [pid 5780] close(3) = 0 [pid 5780] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5779] <... futex resumed>) = 0 [pid 5780] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5779] exit_group(0 [pid 5780] <... futex resumed>) = ? [pid 5780] +++ exited with 0 +++ [pid 5779] <... exit_group resumed>) = ? [pid 5779] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5779, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5781 attached , child_tidptr=0x55557b776690) = 5781 [pid 5781] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5781] setpgid(0, 0) = 0 [pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5781] write(3, "1000", 4) = 4 [pid 5781] close(3) = 0 [pid 5781] write(1, "executing program\n", 18executing program ) = 18 [pid 5781] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5781] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5781] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5781] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5781] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5781] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5781] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5782 attached => {parent_tid=[5782]}, 88) = 5782 [pid 5782] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5782] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5782] rt_sigprocmask(SIG_SETMASK, [], [pid 5781] rt_sigprocmask(SIG_SETMASK, [], [pid 5782] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5781] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5782] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5781] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5782] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5781] <... futex resumed>) = 0 [pid 5782] memfd_create("syzkaller", 0 [pid 5781] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5782] <... memfd_create resumed>) = 3 [pid 5782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5782] 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"..., 16777216) = 16777216 [pid 5782] munmap(0x7f3be0600000, 138412032) = 0 [pid 5782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5782] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5782] ioctl(4, LOOP_CLR_FD) = 0 [pid 5782] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5782] close(4) = 0 [pid 5782] close(3) = 0 [pid 5782] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5781] <... futex resumed>) = 0 [pid 5782] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5781] exit_group(0 [pid 5782] <... futex resumed>) = ? [pid 5781] <... exit_group resumed>) = ? [pid 5782] +++ exited with 0 +++ [pid 5781] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5783 attached , child_tidptr=0x55557b776690) = 5783 [pid 5783] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5783] setpgid(0, 0) = 0 [pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5783] write(3, "1000", 4) = 4 [pid 5783] close(3) = 0 [pid 5783] write(1, "executing program\n", 18executing program ) = 18 [pid 5783] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5783] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5783] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5783] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5783] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5783] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5783] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5784 attached [pid 5784] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5783] <... clone3 resumed> => {parent_tid=[5784]}, 88) = 5784 [pid 5784] <... rseq resumed>) = 0 [pid 5783] rt_sigprocmask(SIG_SETMASK, [], [pid 5784] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5783] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5784] <... set_robust_list resumed>) = 0 [pid 5783] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5784] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5783] <... futex resumed>) = 0 [pid 5784] memfd_create("syzkaller", 0 [pid 5783] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5784] <... memfd_create resumed>) = 3 [pid 5784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5784] 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"..., 16777216) = 16777216 [pid 5784] munmap(0x7f3be0600000, 138412032) = 0 [pid 5784] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5784] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5784] ioctl(4, LOOP_CLR_FD) = 0 [pid 5784] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5784] close(4) = 0 [pid 5784] close(3) = 0 [pid 5784] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5783] <... futex resumed>) = 0 [pid 5784] <... futex resumed>) = 1 [pid 5783] exit_group(0) = ? [pid 5784] +++ exited with 0 +++ [pid 5783] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5783, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5785 attached , child_tidptr=0x55557b776690) = 5785 [pid 5785] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5785] setpgid(0, 0) = 0 [pid 5785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5785] write(3, "1000", 4) = 4 [pid 5785] close(3) = 0 [pid 5785] write(1, "executing program\n", 18executing program ) = 18 [pid 5785] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5785] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5785] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5785] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5785] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5785] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5785] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5786 attached [pid 5786] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5785] <... clone3 resumed> => {parent_tid=[5786]}, 88) = 5786 [pid 5786] <... rseq resumed>) = 0 [pid 5785] rt_sigprocmask(SIG_SETMASK, [], [pid 5786] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5785] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5786] <... set_robust_list resumed>) = 0 [pid 5785] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5786] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5785] <... futex resumed>) = 0 [pid 5786] memfd_create("syzkaller", 0 [pid 5785] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5786] <... memfd_create resumed>) = 3 [pid 5786] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5786] 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"..., 16777216) = 16777216 [pid 5786] munmap(0x7f3be0600000, 138412032) = 0 [pid 5786] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5786] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5786] ioctl(4, LOOP_CLR_FD) = 0 [pid 5786] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5786] close(4) = 0 [pid 5786] close(3) = 0 [pid 5786] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5785] <... futex resumed>) = 0 [pid 5785] exit_group(0 [pid 5786] <... futex resumed>) = ? [pid 5785] <... exit_group resumed>) = ? [pid 5786] +++ exited with 0 +++ [pid 5785] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5785, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5787 attached , child_tidptr=0x55557b776690) = 5787 [pid 5787] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5787] setpgid(0, 0) = 0 [pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5787] write(3, "1000", 4) = 4 [pid 5787] close(3) = 0 executing program [pid 5787] write(1, "executing program\n", 18) = 18 [pid 5787] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5787] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5787] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5787] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5787] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5787] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5787] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5788 attached => {parent_tid=[5788]}, 88) = 5788 [pid 5787] rt_sigprocmask(SIG_SETMASK, [], [pid 5788] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5787] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5787] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5787] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5788] <... rseq resumed>) = 0 [pid 5788] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5788] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5788] memfd_create("syzkaller", 0) = 3 [pid 5788] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5788] 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"..., 16777216) = 16777216 [pid 5788] munmap(0x7f3be0600000, 138412032) = 0 [pid 5788] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5788] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5788] ioctl(4, LOOP_CLR_FD) = 0 [pid 5788] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5788] close(4) = 0 [pid 5788] close(3) = 0 [pid 5788] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5788] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5787] <... futex resumed>) = 0 [pid 5787] exit_group(0) = ? [pid 5788] <... futex resumed>) = ? [pid 5788] +++ exited with 0 +++ [pid 5787] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5789 attached , child_tidptr=0x55557b776690) = 5789 [pid 5789] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5789] setpgid(0, 0) = 0 [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5789] write(3, "1000", 4) = 4 [pid 5789] close(3) = 0 [pid 5789] write(1, "executing program\n", 18executing program ) = 18 [pid 5789] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5789] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5789] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5789] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5789] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5789] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5789] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5790 attached [pid 5790] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5789] <... clone3 resumed> => {parent_tid=[5790]}, 88) = 5790 [pid 5790] <... rseq resumed>) = 0 [pid 5789] rt_sigprocmask(SIG_SETMASK, [], [pid 5790] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5789] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5790] <... set_robust_list resumed>) = 0 [pid 5789] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5790] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5789] <... futex resumed>) = 0 [pid 5789] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5790] memfd_create("syzkaller", 0) = 3 [pid 5790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5790] 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"..., 16777216) = 16777216 [pid 5790] munmap(0x7f3be0600000, 138412032) = 0 [pid 5790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5790] ioctl(4, LOOP_CLR_FD) = 0 [pid 5790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5790] close(4) = 0 [pid 5790] close(3) = 0 [pid 5790] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5790] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5789] <... futex resumed>) = 0 [pid 5789] exit_group(0 [pid 5790] <... futex resumed>) = ? [pid 5789] <... exit_group resumed>) = ? [pid 5790] +++ exited with 0 +++ [pid 5789] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5789, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5791 attached , child_tidptr=0x55557b776690) = 5791 [pid 5791] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5791] setpgid(0, 0) = 0 [pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5791] write(3, "1000", 4) = 4 [pid 5791] close(3) = 0 [pid 5791] write(1, "executing program\n", 18executing program ) = 18 [pid 5791] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5791] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5791] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5791] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5791] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5791] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5792 attached [pid 5792] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5791] <... clone3 resumed> => {parent_tid=[5792]}, 88) = 5792 [pid 5792] <... rseq resumed>) = 0 [pid 5791] rt_sigprocmask(SIG_SETMASK, [], [pid 5792] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5791] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5792] <... set_robust_list resumed>) = 0 [pid 5791] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5792] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5791] <... futex resumed>) = 0 [pid 5792] memfd_create("syzkaller", 0 [pid 5791] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5792] <... memfd_create resumed>) = 3 [pid 5792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5792] 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"..., 16777216) = 16777216 [pid 5792] munmap(0x7f3be0600000, 138412032) = 0 [pid 5792] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5792] ioctl(4, LOOP_CLR_FD) = 0 [pid 5792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5792] close(4) = 0 [pid 5792] close(3) = 0 [pid 5792] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5791] <... futex resumed>) = 0 [pid 5792] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5791] exit_group(0 [pid 5792] <... futex resumed>) = ? [pid 5791] <... exit_group resumed>) = ? [pid 5792] +++ exited with 0 +++ [pid 5791] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5791, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5793 attached , child_tidptr=0x55557b776690) = 5793 [pid 5793] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5793] setpgid(0, 0) = 0 [pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5793] write(3, "1000", 4) = 4 [pid 5793] close(3) = 0 [pid 5793] write(1, "executing program\n", 18executing program ) = 18 [pid 5793] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5793] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5793] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5793] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5793] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5793] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5793] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5794 attached [pid 5794] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5793] <... clone3 resumed> => {parent_tid=[5794]}, 88) = 5794 [pid 5794] <... rseq resumed>) = 0 [pid 5794] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5793] rt_sigprocmask(SIG_SETMASK, [], [pid 5794] <... set_robust_list resumed>) = 0 [pid 5793] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5794] rt_sigprocmask(SIG_SETMASK, [], [pid 5793] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5794] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5793] <... futex resumed>) = 0 [pid 5794] memfd_create("syzkaller", 0 [pid 5793] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5794] <... memfd_create resumed>) = 3 [pid 5794] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5794] 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"..., 16777216) = 16777216 [pid 5794] munmap(0x7f3be0600000, 138412032) = 0 [pid 5794] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5794] ioctl(4, LOOP_CLR_FD) = 0 [pid 5794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5794] close(4) = 0 [pid 5794] close(3) = 0 [pid 5794] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5793] <... futex resumed>) = 0 [pid 5794] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5793] exit_group(0) = ? [pid 5794] <... futex resumed>) = ? [pid 5794] +++ exited with 0 +++ [pid 5793] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5793, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5795 attached , child_tidptr=0x55557b776690) = 5795 [pid 5795] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5795] setpgid(0, 0) = 0 [pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1000", 4) = 4 [pid 5795] close(3) = 0 executing program [pid 5795] write(1, "executing program\n", 18) = 18 [pid 5795] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5795] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5795] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5795] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5795] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5795] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5795] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5796 attached [pid 5796] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5795] <... clone3 resumed> => {parent_tid=[5796]}, 88) = 5796 [pid 5796] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5795] rt_sigprocmask(SIG_SETMASK, [], [pid 5796] <... set_robust_list resumed>) = 0 [pid 5795] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5796] rt_sigprocmask(SIG_SETMASK, [], [pid 5795] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5796] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5795] <... futex resumed>) = 0 [pid 5796] memfd_create("syzkaller", 0 [pid 5795] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5796] <... memfd_create resumed>) = 3 [pid 5796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5796] 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"..., 16777216) = 16777216 [pid 5796] munmap(0x7f3be0600000, 138412032) = 0 [pid 5796] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5796] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5796] ioctl(4, LOOP_CLR_FD) = 0 [pid 5796] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5796] close(4) = 0 [pid 5796] close(3) = 0 [pid 5796] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5796] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5795] <... futex resumed>) = 0 [pid 5795] exit_group(0) = ? [pid 5796] <... futex resumed>) = ? [pid 5796] +++ exited with 0 +++ [pid 5795] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5797 attached , child_tidptr=0x55557b776690) = 5797 [pid 5797] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5797] setpgid(0, 0) = 0 [pid 5797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5797] write(3, "1000", 4) = 4 [pid 5797] close(3) = 0 executing program [pid 5797] write(1, "executing program\n", 18) = 18 [pid 5797] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5797] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5797] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5797] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5797] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5797] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5797] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5798 attached [pid 5798] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5797] <... clone3 resumed> => {parent_tid=[5798]}, 88) = 5798 [pid 5798] <... rseq resumed>) = 0 [pid 5797] rt_sigprocmask(SIG_SETMASK, [], [pid 5798] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5797] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5798] <... set_robust_list resumed>) = 0 [pid 5798] rt_sigprocmask(SIG_SETMASK, [], [pid 5797] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5798] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5797] <... futex resumed>) = 0 [pid 5797] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5798] memfd_create("syzkaller", 0) = 3 [pid 5798] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5798] 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"..., 16777216) = 16777216 [pid 5798] munmap(0x7f3be0600000, 138412032) = 0 [pid 5798] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5798] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5798] ioctl(4, LOOP_CLR_FD) = 0 [pid 5798] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5798] close(4) = 0 [pid 5798] close(3) = 0 [pid 5798] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5797] <... futex resumed>) = 0 [pid 5798] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5797] exit_group(0 [pid 5798] <... futex resumed>) = ? [pid 5798] +++ exited with 0 +++ [pid 5797] <... exit_group resumed>) = ? [pid 5797] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5797, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 5799 attached , child_tidptr=0x55557b776690) = 5799 [pid 5799] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5799] setpgid(0, 0) = 0 [pid 5799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5799] write(3, "1000", 4) = 4 [pid 5799] close(3) = 0 [pid 5799] write(1, "executing program\n", 18executing program ) = 18 [pid 5799] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5799] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5799] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5799] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5799] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5799] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5799] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5800 attached [pid 5800] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5799] <... clone3 resumed> => {parent_tid=[5800]}, 88) = 5800 [pid 5800] <... rseq resumed>) = 0 [pid 5799] rt_sigprocmask(SIG_SETMASK, [], [pid 5800] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5799] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5800] <... set_robust_list resumed>) = 0 [pid 5799] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5800] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5799] <... futex resumed>) = 0 [pid 5799] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5800] memfd_create("syzkaller", 0) = 3 [pid 5800] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5800] 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"..., 16777216) = 16777216 [pid 5800] munmap(0x7f3be0600000, 138412032) = 0 [pid 5800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5800] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5800] ioctl(4, LOOP_CLR_FD) = 0 [pid 5800] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5800] close(4) = 0 [pid 5800] close(3) = 0 [pid 5800] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5800] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5799] <... futex resumed>) = 0 [pid 5799] exit_group(0) = ? [pid 5800] <... futex resumed>) = ? [pid 5800] +++ exited with 0 +++ [pid 5799] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5799, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5801 attached , child_tidptr=0x55557b776690) = 5801 [pid 5801] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5801] setpgid(0, 0) = 0 [pid 5801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5801] write(3, "1000", 4) = 4 [pid 5801] close(3) = 0 [pid 5801] write(1, "executing program\n", 18executing program ) = 18 [pid 5801] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5801] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5801] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5801] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5801] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5801] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5801] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5802 attached [pid 5802] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5801] <... clone3 resumed> => {parent_tid=[5802]}, 88) = 5802 [pid 5802] <... rseq resumed>) = 0 [pid 5801] rt_sigprocmask(SIG_SETMASK, [], [pid 5802] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5801] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5802] <... set_robust_list resumed>) = 0 [pid 5801] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5802] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5801] <... futex resumed>) = 0 [pid 5801] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5802] memfd_create("syzkaller", 0) = 3 [pid 5802] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5802] 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"..., 16777216) = 16777216 [pid 5802] munmap(0x7f3be0600000, 138412032) = 0 [pid 5802] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5802] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5802] ioctl(4, LOOP_CLR_FD) = 0 [pid 5802] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5802] close(4) = 0 [pid 5802] close(3) = 0 [pid 5802] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5801] <... futex resumed>) = 0 [pid 5802] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5801] exit_group(0 [pid 5802] <... futex resumed>) = ? [pid 5802] +++ exited with 0 +++ [pid 5801] <... exit_group resumed>) = ? [pid 5801] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5801, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5803 attached , child_tidptr=0x55557b776690) = 5803 [pid 5803] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5803] setpgid(0, 0) = 0 [pid 5803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5803] write(3, "1000", 4) = 4 [pid 5803] close(3) = 0 [pid 5803] write(1, "executing program\n", 18executing program ) = 18 [pid 5803] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5803] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5803] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5803] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5803] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5803] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5803] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5804 attached [pid 5804] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5803] <... clone3 resumed> => {parent_tid=[5804]}, 88) = 5804 [pid 5804] <... rseq resumed>) = 0 [pid 5803] rt_sigprocmask(SIG_SETMASK, [], [pid 5804] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5803] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5804] <... set_robust_list resumed>) = 0 [pid 5803] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5804] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5803] <... futex resumed>) = 0 [pid 5803] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5804] memfd_create("syzkaller", 0) = 3 [pid 5804] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5804] 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"..., 16777216) = 16777216 [pid 5804] munmap(0x7f3be0600000, 138412032) = 0 [pid 5804] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5804] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5804] ioctl(4, LOOP_CLR_FD) = 0 [pid 5804] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5804] close(4) = 0 [pid 5804] close(3) = 0 [pid 5804] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5803] <... futex resumed>) = 0 [pid 5803] exit_group(0) = ? [pid 5804] +++ exited with 0 +++ [pid 5803] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5803, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5805 attached , child_tidptr=0x55557b776690) = 5805 [pid 5805] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5805] setpgid(0, 0) = 0 [pid 5805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5805] write(3, "1000", 4) = 4 [pid 5805] close(3) = 0 [pid 5805] write(1, "executing program\n", 18executing program ) = 18 [pid 5805] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5805] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5805] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5805] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5805] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5805] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5805] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5806 attached [pid 5806] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5805] <... clone3 resumed> => {parent_tid=[5806]}, 88) = 5806 [pid 5806] <... rseq resumed>) = 0 [pid 5805] rt_sigprocmask(SIG_SETMASK, [], [pid 5806] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5805] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5806] <... set_robust_list resumed>) = 0 [pid 5805] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5805] <... futex resumed>) = 0 [pid 5805] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5806] memfd_create("syzkaller", 0) = 3 [pid 5806] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5806] 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"..., 16777216) = 16777216 [pid 5806] munmap(0x7f3be0600000, 138412032) = 0 [pid 5806] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5806] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5806] ioctl(4, LOOP_CLR_FD) = 0 [pid 5806] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5806] close(4) = 0 [pid 5806] close(3) = 0 [pid 5806] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5805] <... futex resumed>) = 0 [pid 5806] <... futex resumed>) = 1 [pid 5805] exit_group(0 [pid 5806] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5805] <... exit_group resumed>) = ? [pid 5806] +++ exited with 0 +++ [pid 5805] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5805, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5807 attached , child_tidptr=0x55557b776690) = 5807 [pid 5807] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5807] setpgid(0, 0) = 0 [pid 5807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5807] write(3, "1000", 4) = 4 [pid 5807] close(3) = 0 [pid 5807] write(1, "executing program\n", 18executing program ) = 18 [pid 5807] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5807] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5807] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5807] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5807] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5807] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5807] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5808 attached => {parent_tid=[5808]}, 88) = 5808 [pid 5807] rt_sigprocmask(SIG_SETMASK, [], [pid 5808] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5807] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5808] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5807] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5808] rt_sigprocmask(SIG_SETMASK, [], [pid 5807] <... futex resumed>) = 0 [pid 5807] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5808] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5808] memfd_create("syzkaller", 0) = 3 [pid 5808] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5808] 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"..., 16777216) = 16777216 [pid 5808] munmap(0x7f3be0600000, 138412032) = 0 [pid 5808] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5808] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5808] ioctl(4, LOOP_CLR_FD) = 0 [pid 5808] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5808] close(4) = 0 [pid 5808] close(3) = 0 [pid 5808] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5807] <... futex resumed>) = 0 [pid 5808] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5807] exit_group(0 [pid 5808] <... futex resumed>) = ? [pid 5807] <... exit_group resumed>) = ? [pid 5808] +++ exited with 0 +++ [pid 5807] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5807, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5809 attached , child_tidptr=0x55557b776690) = 5809 [pid 5809] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5809] setpgid(0, 0) = 0 [pid 5809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5809] write(3, "1000", 4) = 4 [pid 5809] close(3) = 0 executing program [pid 5809] write(1, "executing program\n", 18) = 18 [pid 5809] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5809] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5809] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5809] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5809] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5809] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5810 attached => {parent_tid=[5810]}, 88) = 5810 [pid 5809] rt_sigprocmask(SIG_SETMASK, [], [pid 5810] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5809] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5809] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5810] <... rseq resumed>) = 0 [pid 5810] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5809] <... futex resumed>) = 0 [pid 5810] <... set_robust_list resumed>) = 0 [pid 5809] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5810] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5810] memfd_create("syzkaller", 0) = 3 [pid 5810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5810] 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"..., 16777216) = 16777216 [pid 5810] munmap(0x7f3be0600000, 138412032) = 0 [pid 5810] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5810] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5810] ioctl(4, LOOP_CLR_FD) = 0 [pid 5810] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5810] close(4) = 0 [pid 5810] close(3) = 0 [pid 5810] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5809] <... futex resumed>) = 0 [pid 5810] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5809] exit_group(0 [pid 5810] <... futex resumed>) = ? [pid 5809] <... exit_group resumed>) = ? [pid 5810] +++ exited with 0 +++ [pid 5809] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5809, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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=0x55557b776690) = 5811 ./strace-static-x86_64: Process 5811 attached [pid 5811] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5811] setpgid(0, 0) = 0 [pid 5811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5811] write(3, "1000", 4) = 4 [pid 5811] close(3) = 0 [pid 5811] write(1, "executing program\n", 18executing program ) = 18 [pid 5811] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5811] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5811] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5811] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5811] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5811] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5811] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[5812]}, 88) = 5812 ./strace-static-x86_64: Process 5812 attached [pid 5812] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5811] rt_sigprocmask(SIG_SETMASK, [], [pid 5812] <... rseq resumed>) = 0 [pid 5812] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5811] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5812] <... set_robust_list resumed>) = 0 [pid 5811] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5812] rt_sigprocmask(SIG_SETMASK, [], [pid 5811] <... futex resumed>) = 0 [pid 5812] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5811] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5812] memfd_create("syzkaller", 0) = 3 [pid 5812] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5812] 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"..., 16777216) = 16777216 [pid 5812] munmap(0x7f3be0600000, 138412032) = 0 [pid 5812] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5812] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5812] ioctl(4, LOOP_CLR_FD) = 0 [pid 5812] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5812] close(4) = 0 [pid 5812] close(3) = 0 [pid 5812] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5811] <... futex resumed>) = 0 [pid 5811] exit_group(0) = ? [pid 5812] <... futex resumed>) = ? [pid 5812] +++ exited with 0 +++ [pid 5811] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5811, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5813 attached , child_tidptr=0x55557b776690) = 5813 [pid 5813] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5813] setpgid(0, 0) = 0 [pid 5813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "1000", 4) = 4 [pid 5813] close(3) = 0 [pid 5813] write(1, "executing program\n", 18executing program ) = 18 [pid 5813] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5813] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5813] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5813] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5813] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5813] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5813] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5814 attached [pid 5814] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5813] <... clone3 resumed> => {parent_tid=[5814]}, 88) = 5814 [pid 5814] <... rseq resumed>) = 0 [pid 5813] rt_sigprocmask(SIG_SETMASK, [], [pid 5814] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5813] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5814] <... set_robust_list resumed>) = 0 [pid 5813] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5814] rt_sigprocmask(SIG_SETMASK, [], [pid 5813] <... futex resumed>) = 0 [pid 5814] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5813] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5814] memfd_create("syzkaller", 0) = 3 [pid 5814] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5814] 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"..., 16777216) = 16777216 [pid 5814] munmap(0x7f3be0600000, 138412032) = 0 [pid 5814] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5814] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5814] ioctl(4, LOOP_CLR_FD) = 0 [pid 5814] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5814] close(4) = 0 [pid 5814] close(3) = 0 [pid 5814] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5814] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5813] <... futex resumed>) = 0 [pid 5813] exit_group(0 [pid 5814] <... futex resumed>) = ? [pid 5813] <... exit_group resumed>) = ? [pid 5814] +++ exited with 0 +++ [pid 5813] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5813, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5815 attached , child_tidptr=0x55557b776690) = 5815 [pid 5815] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5815] setpgid(0, 0) = 0 [pid 5815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5815] write(3, "1000", 4) = 4 [pid 5815] close(3) = 0 [pid 5815] write(1, "executing program\n", 18executing program ) = 18 [pid 5815] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5815] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5815] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5815] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5815] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5815] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5815] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5816 attached [pid 5816] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5815] <... clone3 resumed> => {parent_tid=[5816]}, 88) = 5816 [pid 5816] <... rseq resumed>) = 0 [pid 5815] rt_sigprocmask(SIG_SETMASK, [], [pid 5816] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5815] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5816] <... set_robust_list resumed>) = 0 [pid 5815] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5816] rt_sigprocmask(SIG_SETMASK, [], [pid 5815] <... futex resumed>) = 0 [pid 5816] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5815] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5816] memfd_create("syzkaller", 0) = 3 [pid 5816] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5816] 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"..., 16777216) = 16777216 [pid 5816] munmap(0x7f3be0600000, 138412032) = 0 [pid 5816] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5816] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5816] ioctl(4, LOOP_CLR_FD) = 0 [pid 5816] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5816] close(4) = 0 [pid 5816] close(3) = 0 [pid 5816] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5815] <... futex resumed>) = 0 [pid 5816] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5815] exit_group(0 [pid 5816] <... futex resumed>) = ? [pid 5815] <... exit_group resumed>) = ? [pid 5816] +++ exited with 0 +++ [pid 5815] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5815, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5817 attached , child_tidptr=0x55557b776690) = 5817 [pid 5817] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5817] setpgid(0, 0) = 0 [pid 5817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5817] write(3, "1000", 4) = 4 [pid 5817] close(3) = 0 [pid 5817] write(1, "executing program\n", 18executing program ) = 18 [pid 5817] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5817] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5817] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5817] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5817] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5817] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5817] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5818 attached [pid 5818] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5817] <... clone3 resumed> => {parent_tid=[5818]}, 88) = 5818 [pid 5818] <... rseq resumed>) = 0 [pid 5817] rt_sigprocmask(SIG_SETMASK, [], [pid 5818] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5817] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5818] <... set_robust_list resumed>) = 0 [pid 5817] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5818] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5817] <... futex resumed>) = 0 [pid 5818] memfd_create("syzkaller", 0 [pid 5817] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5818] <... memfd_create resumed>) = 3 [pid 5818] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5818] 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"..., 16777216) = 16777216 [pid 5818] munmap(0x7f3be0600000, 138412032) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5818] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5818] ioctl(4, LOOP_CLR_FD) = 0 [pid 5818] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5818] close(4) = 0 [pid 5818] close(3) = 0 [pid 5818] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5817] <... futex resumed>) = 0 [pid 5818] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5817] exit_group(0 [pid 5818] <... futex resumed>) = ? [pid 5817] <... exit_group resumed>) = ? [pid 5818] +++ exited with 0 +++ [pid 5817] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5817, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5819 attached , child_tidptr=0x55557b776690) = 5819 [pid 5819] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5819] setpgid(0, 0) = 0 [pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5819] write(3, "1000", 4) = 4 [pid 5819] close(3) = 0 executing program [pid 5819] write(1, "executing program\n", 18) = 18 [pid 5819] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5819] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5819] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5819] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5819] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5819] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5819] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5820 attached [pid 5820] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5819] <... clone3 resumed> => {parent_tid=[5820]}, 88) = 5820 [pid 5820] <... rseq resumed>) = 0 [pid 5819] rt_sigprocmask(SIG_SETMASK, [], [pid 5820] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5819] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5820] <... set_robust_list resumed>) = 0 [pid 5819] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5820] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5819] <... futex resumed>) = 0 [pid 5820] memfd_create("syzkaller", 0 [pid 5819] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5820] <... memfd_create resumed>) = 3 [pid 5820] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5820] 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"..., 16777216) = 16777216 [pid 5820] munmap(0x7f3be0600000, 138412032) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5820] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5820] ioctl(4, LOOP_CLR_FD) = 0 [pid 5820] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5820] close(4) = 0 [pid 5820] close(3) = 0 [pid 5820] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5819] <... futex resumed>) = 0 [pid 5820] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5819] exit_group(0 [pid 5820] <... futex resumed>) = ? [pid 5820] +++ exited with 0 +++ [pid 5819] <... exit_group resumed>) = ? [pid 5819] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5819, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5821 attached , child_tidptr=0x55557b776690) = 5821 [pid 5821] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5821] setpgid(0, 0) = 0 [pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5821] write(3, "1000", 4) = 4 [pid 5821] close(3) = 0 executing program [pid 5821] write(1, "executing program\n", 18) = 18 [pid 5821] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5821] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5821] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5821] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5821] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5821] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5822 attached [pid 5822] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5821] <... clone3 resumed> => {parent_tid=[5822]}, 88) = 5822 [pid 5822] <... rseq resumed>) = 0 [pid 5822] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5821] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5821] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5822] <... set_robust_list resumed>) = 0 [pid 5821] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5822] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5822] memfd_create("syzkaller", 0) = 3 [pid 5822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5822] 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"..., 16777216) = 16777216 [pid 5822] munmap(0x7f3be0600000, 138412032) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5822] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5822] ioctl(4, LOOP_CLR_FD) = 0 [pid 5822] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5822] close(4) = 0 [pid 5822] close(3) = 0 [pid 5822] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5822] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5821] <... futex resumed>) = 0 [pid 5821] exit_group(0) = ? [pid 5822] <... futex resumed>) = ? [pid 5822] +++ exited with 0 +++ [pid 5821] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5821, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5823 attached , child_tidptr=0x55557b776690) = 5823 [pid 5823] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5823] setpgid(0, 0) = 0 [pid 5823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1000", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] write(1, "executing program\n", 18executing program ) = 18 [pid 5823] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5823] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5823] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5823] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5823] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5823] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5823] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5824 attached [pid 5824] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5823] <... clone3 resumed> => {parent_tid=[5824]}, 88) = 5824 [pid 5824] <... rseq resumed>) = 0 [pid 5823] rt_sigprocmask(SIG_SETMASK, [], [pid 5824] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5823] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5824] <... set_robust_list resumed>) = 0 [pid 5823] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5824] rt_sigprocmask(SIG_SETMASK, [], [pid 5823] <... futex resumed>) = 0 [pid 5824] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5823] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5824] memfd_create("syzkaller", 0) = 3 [pid 5824] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5824] 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"..., 16777216) = 16777216 [pid 5824] munmap(0x7f3be0600000, 138412032) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5824] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5824] ioctl(4, LOOP_CLR_FD) = 0 [pid 5824] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5824] close(4) = 0 [pid 5824] close(3) = 0 [pid 5824] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5824] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5823] <... futex resumed>) = 0 [pid 5823] exit_group(0 [pid 5824] <... futex resumed>) = ? [pid 5823] <... exit_group resumed>) = ? [pid 5824] +++ exited with 0 +++ [pid 5823] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5823, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5825 attached , child_tidptr=0x55557b776690) = 5825 [pid 5825] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5825] setpgid(0, 0) = 0 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5825] write(3, "1000", 4) = 4 [pid 5825] close(3) = 0 executing program [pid 5825] write(1, "executing program\n", 18) = 18 [pid 5825] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5825] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5825] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5825] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5825] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5825] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5825] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5826 attached [pid 5826] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5825] <... clone3 resumed> => {parent_tid=[5826]}, 88) = 5826 [pid 5826] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5825] rt_sigprocmask(SIG_SETMASK, [], [pid 5826] <... set_robust_list resumed>) = 0 [pid 5826] rt_sigprocmask(SIG_SETMASK, [], [pid 5825] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5826] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5825] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5826] memfd_create("syzkaller", 0 [pid 5825] <... futex resumed>) = 0 [pid 5825] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5826] <... memfd_create resumed>) = 3 [pid 5826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5826] 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"..., 16777216) = 16777216 [pid 5826] munmap(0x7f3be0600000, 138412032) = 0 [pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5826] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5826] ioctl(4, LOOP_CLR_FD) = 0 [pid 5826] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5826] close(4) = 0 [pid 5826] close(3) = 0 [pid 5826] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5825] <... futex resumed>) = 0 [pid 5825] exit_group(0 [pid 5826] <... futex resumed>) = ? [pid 5825] <... exit_group resumed>) = ? [pid 5826] +++ exited with 0 +++ [pid 5825] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5825, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5827 attached , child_tidptr=0x55557b776690) = 5827 [pid 5827] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5827] setpgid(0, 0) = 0 [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5827] write(3, "1000", 4) = 4 [pid 5827] close(3) = 0 executing program [pid 5827] write(1, "executing program\n", 18) = 18 [pid 5827] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5827] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5827] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5827] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5827] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5827] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5827] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5828 attached [pid 5828] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5827] <... clone3 resumed> => {parent_tid=[5828]}, 88) = 5828 [pid 5828] <... rseq resumed>) = 0 [pid 5827] rt_sigprocmask(SIG_SETMASK, [], [pid 5828] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5827] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5828] <... set_robust_list resumed>) = 0 [pid 5828] rt_sigprocmask(SIG_SETMASK, [], [pid 5827] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5828] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5827] <... futex resumed>) = 0 [pid 5828] memfd_create("syzkaller", 0 [pid 5827] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5828] <... memfd_create resumed>) = 3 [pid 5828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5828] 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"..., 16777216) = 16777216 [pid 5828] munmap(0x7f3be0600000, 138412032) = 0 [pid 5828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5828] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5828] ioctl(4, LOOP_CLR_FD) = 0 [pid 5828] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5828] close(4) = 0 [pid 5828] close(3) = 0 [pid 5828] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5827] <... futex resumed>) = 0 [pid 5828] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5827] exit_group(0 [pid 5828] <... futex resumed>) = ? [pid 5828] +++ exited with 0 +++ [pid 5827] <... exit_group resumed>) = ? [pid 5827] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5829 attached , child_tidptr=0x55557b776690) = 5829 [pid 5829] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5829] setpgid(0, 0) = 0 [pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1000", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] write(1, "executing program\n", 18executing program ) = 18 [pid 5829] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5829] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5829] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5829] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5829] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5829] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5829] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5830 attached [pid 5830] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5829] <... clone3 resumed> => {parent_tid=[5830]}, 88) = 5830 [pid 5830] <... rseq resumed>) = 0 [pid 5830] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5829] rt_sigprocmask(SIG_SETMASK, [], [pid 5830] <... set_robust_list resumed>) = 0 [pid 5829] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5830] rt_sigprocmask(SIG_SETMASK, [], [pid 5829] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5830] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5829] <... futex resumed>) = 0 [pid 5830] memfd_create("syzkaller", 0 [pid 5829] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5830] <... memfd_create resumed>) = 3 [pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5830] 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"..., 16777216) = 16777216 [pid 5830] munmap(0x7f3be0600000, 138412032) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5830] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5830] ioctl(4, LOOP_CLR_FD) = 0 [pid 5830] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5830] close(4) = 0 [pid 5830] close(3) = 0 [pid 5830] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5829] <... futex resumed>) = 0 [pid 5829] exit_group(0 [pid 5830] <... futex resumed>) = ? [pid 5829] <... exit_group resumed>) = ? [pid 5830] +++ exited with 0 +++ [pid 5829] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5831 attached , child_tidptr=0x55557b776690) = 5831 [pid 5831] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5831] setpgid(0, 0) = 0 [pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1000", 4) = 4 [pid 5831] close(3) = 0 executing program [pid 5831] write(1, "executing program\n", 18) = 18 [pid 5831] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5831] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5831] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5831] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5831] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5831] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5831] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5832 attached [pid 5832] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5831] <... clone3 resumed> => {parent_tid=[5832]}, 88) = 5832 [pid 5832] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5831] rt_sigprocmask(SIG_SETMASK, [], [pid 5832] <... set_robust_list resumed>) = 0 [pid 5831] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5832] rt_sigprocmask(SIG_SETMASK, [], [pid 5831] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5832] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5832] memfd_create("syzkaller", 0 [pid 5831] <... futex resumed>) = 0 [pid 5831] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5832] <... memfd_create resumed>) = 3 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5832] 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"..., 16777216) = 16777216 [pid 5832] munmap(0x7f3be0600000, 138412032) = 0 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5832] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5832] ioctl(4, LOOP_CLR_FD) = 0 [pid 5832] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5832] close(4) = 0 [pid 5832] close(3) = 0 [pid 5832] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5831] <... futex resumed>) = 0 [pid 5832] <... futex resumed>) = 1 [pid 5831] exit_group(0 [pid 5832] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5831] <... exit_group resumed>) = ? [pid 5832] +++ exited with 0 +++ [pid 5831] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5831, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5833 attached , child_tidptr=0x55557b776690) = 5833 [pid 5833] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] setpgid(0, 0) = 0 [pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1000", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] write(1, "executing program\n", 18executing program ) = 18 [pid 5833] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5833] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5833] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5833] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5833] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5833] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5833] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5834 attached [pid 5834] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5833] <... clone3 resumed> => {parent_tid=[5834]}, 88) = 5834 [pid 5834] <... rseq resumed>) = 0 [pid 5833] rt_sigprocmask(SIG_SETMASK, [], [pid 5834] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5833] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5833] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5833] <... futex resumed>) = 0 [pid 5834] memfd_create("syzkaller", 0 [pid 5833] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5834] <... memfd_create resumed>) = 3 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5834] 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"..., 16777216) = 16777216 [pid 5834] munmap(0x7f3be0600000, 138412032) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5834] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5834] ioctl(4, LOOP_CLR_FD) = 0 [pid 5834] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5834] close(4) = 0 [pid 5834] close(3) = 0 [pid 5834] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5834] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] <... futex resumed>) = 0 [pid 5833] exit_group(0 [pid 5834] <... futex resumed>) = ? [pid 5833] <... exit_group resumed>) = ? [pid 5834] +++ exited with 0 +++ [pid 5833] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5835 attached , child_tidptr=0x55557b776690) = 5835 [pid 5835] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5835] setpgid(0, 0) = 0 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5835] write(3, "1000", 4) = 4 [pid 5835] close(3) = 0 executing program [pid 5835] write(1, "executing program\n", 18) = 18 [pid 5835] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5835] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5835] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5835] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5835] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5835] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5835] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5836 attached [pid 5836] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5835] <... clone3 resumed> => {parent_tid=[5836]}, 88) = 5836 [pid 5836] <... rseq resumed>) = 0 [pid 5836] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5835] rt_sigprocmask(SIG_SETMASK, [], [pid 5836] <... set_robust_list resumed>) = 0 [pid 5835] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5836] rt_sigprocmask(SIG_SETMASK, [], [pid 5835] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5835] <... futex resumed>) = 0 [pid 5835] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5836] memfd_create("syzkaller", 0) = 3 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5836] 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"..., 16777216) = 16777216 [pid 5836] munmap(0x7f3be0600000, 138412032) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5836] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5836] ioctl(4, LOOP_CLR_FD) = 0 [pid 5836] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5836] close(4) = 0 [pid 5836] close(3) = 0 [pid 5836] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5836] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... futex resumed>) = 0 [pid 5835] exit_group(0 [pid 5836] <... futex resumed>) = ? [pid 5835] <... exit_group resumed>) = ? [pid 5836] +++ exited with 0 +++ [pid 5835] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5837 attached , child_tidptr=0x55557b776690) = 5837 [pid 5837] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5837] setpgid(0, 0) = 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1000", 4) = 4 [pid 5837] close(3) = 0 [pid 5837] write(1, "executing program\n", 18executing program ) = 18 [pid 5837] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5837] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5837] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5837] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5837] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5837] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5838 attached [pid 5838] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5837] <... clone3 resumed> => {parent_tid=[5838]}, 88) = 5838 [pid 5838] <... rseq resumed>) = 0 [pid 5837] rt_sigprocmask(SIG_SETMASK, [], [pid 5838] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5837] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5838] <... set_robust_list resumed>) = 0 [pid 5837] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5838] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] <... futex resumed>) = 0 [pid 5838] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5838] memfd_create("syzkaller", 0) = 3 [pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5838] 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"..., 16777216) = 16777216 [pid 5838] munmap(0x7f3be0600000, 138412032) = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5838] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5838] ioctl(4, LOOP_CLR_FD) = 0 [pid 5838] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5838] close(4) = 0 [pid 5838] close(3) = 0 [pid 5838] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5837] <... futex resumed>) = 0 [pid 5838] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] exit_group(0 [pid 5838] <... futex resumed>) = ? [pid 5837] <... exit_group resumed>) = ? [pid 5838] +++ exited with 0 +++ [pid 5837] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5839 attached , child_tidptr=0x55557b776690) = 5839 [pid 5839] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5839] setpgid(0, 0) = 0 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1000", 4) = 4 [pid 5839] close(3) = 0 executing program [pid 5839] write(1, "executing program\n", 18) = 18 [pid 5839] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5839] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5839] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5839] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5839] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5839] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5840 attached [pid 5840] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5839] <... clone3 resumed> => {parent_tid=[5840]}, 88) = 5840 [pid 5840] <... rseq resumed>) = 0 [pid 5839] rt_sigprocmask(SIG_SETMASK, [], [pid 5840] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5839] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5840] <... set_robust_list resumed>) = 0 [pid 5839] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5840] rt_sigprocmask(SIG_SETMASK, [], [pid 5839] <... futex resumed>) = 0 [pid 5840] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5840] memfd_create("syzkaller", 0 [pid 5839] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5840] <... memfd_create resumed>) = 3 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5840] 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"..., 16777216) = 16777216 [pid 5840] munmap(0x7f3be0600000, 138412032) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5840] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5840] ioctl(4, LOOP_CLR_FD) = 0 [pid 5840] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5840] close(4) = 0 [pid 5840] close(3) = 0 [pid 5840] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5840] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5839] <... futex resumed>) = 0 [pid 5839] exit_group(0) = ? [pid 5840] <... futex resumed>) = ? [pid 5840] +++ exited with 0 +++ [pid 5839] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5841 attached , child_tidptr=0x55557b776690) = 5841 [pid 5841] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 executing program [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5841] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5841] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5841] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5841] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5841] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5841] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5841] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5842 attached => {parent_tid=[5842]}, 88) = 5842 [pid 5842] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5842] <... rseq resumed>) = 0 [pid 5842] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5841] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5841] <... futex resumed>) = 0 [pid 5842] rt_sigprocmask(SIG_SETMASK, [], [pid 5841] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5842] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5842] memfd_create("syzkaller", 0) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5842] 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"..., 16777216) = 16777216 [pid 5842] munmap(0x7f3be0600000, 138412032) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5842] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5842] ioctl(4, LOOP_CLR_FD) = 0 [pid 5842] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5842] close(4) = 0 [pid 5842] close(3) = 0 [pid 5842] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5841] <... futex resumed>) = 0 [pid 5841] exit_group(0) = ? [pid 5842] +++ exited with 0 +++ [pid 5841] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5843 attached , child_tidptr=0x55557b776690) = 5843 [pid 5843] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 executing program [pid 5843] write(1, "executing program\n", 18) = 18 [pid 5843] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5843] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5843] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5843] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5843] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5843] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5843] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5844 attached => {parent_tid=[5844]}, 88) = 5844 [pid 5843] rt_sigprocmask(SIG_SETMASK, [], [pid 5844] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5843] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5843] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5843] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5844] <... rseq resumed>) = 0 [pid 5844] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5844] 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"..., 16777216) = 16777216 [pid 5844] munmap(0x7f3be0600000, 138412032) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5844] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5844] ioctl(4, LOOP_CLR_FD) = 0 [pid 5844] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5844] close(4) = 0 [pid 5844] close(3) = 0 [pid 5844] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5844] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5843] <... futex resumed>) = 0 [pid 5843] exit_group(0 [pid 5844] <... futex resumed>) = ? [pid 5844] +++ exited with 0 +++ [pid 5843] <... exit_group resumed>) = ? [pid 5843] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5845 attached , child_tidptr=0x55557b776690) = 5845 [pid 5845] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] setpgid(0, 0) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] write(3, "1000", 4) = 4 [pid 5845] close(3) = 0 [pid 5845] write(1, "executing program\n", 18executing program ) = 18 [pid 5845] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5845] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5845] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5845] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5845] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5846 attached => {parent_tid=[5846]}, 88) = 5846 [pid 5845] rt_sigprocmask(SIG_SETMASK, [], [pid 5846] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5845] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5846] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5845] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5846] <... set_robust_list resumed>) = 0 [pid 5845] <... futex resumed>) = 0 [pid 5846] rt_sigprocmask(SIG_SETMASK, [], [pid 5845] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5846] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5846] memfd_create("syzkaller", 0) = 3 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5846] 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"..., 16777216) = 16777216 [pid 5846] munmap(0x7f3be0600000, 138412032) = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5846] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5846] ioctl(4, LOOP_CLR_FD) = 0 [pid 5846] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5846] close(4) = 0 [pid 5846] close(3) = 0 [pid 5846] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5845] <... futex resumed>) = 0 [pid 5846] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5845] exit_group(0) = ? [pid 5846] <... futex resumed>) = ? [pid 5846] +++ exited with 0 +++ [pid 5845] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5847 attached , child_tidptr=0x55557b776690) = 5847 [pid 5847] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4) = 4 [pid 5847] close(3) = 0 [pid 5847] write(1, "executing program\n", 18executing program ) = 18 [pid 5847] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5847] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5847] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5848 attached => {parent_tid=[5848]}, 88) = 5848 [pid 5848] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5848] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5848] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5848] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5847] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5847] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5848] memfd_create("syzkaller", 0) = 3 [pid 5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5848] 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"..., 16777216) = 16777216 [pid 5848] munmap(0x7f3be0600000, 138412032) = 0 [pid 5848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5848] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5848] ioctl(4, LOOP_CLR_FD) = 0 [pid 5848] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5848] close(4) = 0 [pid 5848] close(3) = 0 [pid 5848] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] <... futex resumed>) = 0 [pid 5847] exit_group(0) = ? [pid 5848] <... futex resumed>) = ? [pid 5848] +++ exited with 0 +++ [pid 5847] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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=0x55557b776690) = 5849 ./strace-static-x86_64: Process 5849 attached [pid 5849] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] setpgid(0, 0) = 0 [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1000", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] write(1, "executing program\n", 18executing program ) = 18 [pid 5849] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5849] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5849] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5849] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5849] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5849] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5850 attached [pid 5850] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5849] <... clone3 resumed> => {parent_tid=[5850]}, 88) = 5850 [pid 5850] <... rseq resumed>) = 0 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5850] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5850] <... set_robust_list resumed>) = 0 [pid 5849] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] rt_sigprocmask(SIG_SETMASK, [], [pid 5849] <... futex resumed>) = 0 [pid 5850] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5850] memfd_create("syzkaller", 0) = 3 [pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5850] 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"..., 16777216) = 16777216 [pid 5850] munmap(0x7f3be0600000, 138412032) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5850] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5850] ioctl(4, LOOP_CLR_FD) = 0 [pid 5850] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5850] close(4) = 0 [pid 5850] close(3) = 0 [pid 5850] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5850] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5849] <... futex resumed>) = 0 [pid 5849] exit_group(0 [pid 5850] <... futex resumed>) = ? [pid 5849] <... exit_group resumed>) = ? [pid 5850] +++ exited with 0 +++ [pid 5849] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5851 attached , child_tidptr=0x55557b776690) = 5851 [pid 5851] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] setpgid(0, 0) = 0 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] write(3, "1000", 4) = 4 [pid 5851] close(3) = 0 [pid 5851] write(1, "executing program\n", 18executing program ) = 18 [pid 5851] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5851] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5851] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5851] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5851] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5851] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5851] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5852 attached [pid 5852] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5851] <... clone3 resumed> => {parent_tid=[5852]}, 88) = 5852 [pid 5852] <... rseq resumed>) = 0 [pid 5851] rt_sigprocmask(SIG_SETMASK, [], [pid 5852] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5851] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] rt_sigprocmask(SIG_SETMASK, [], [pid 5851] <... futex resumed>) = 0 [pid 5852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5852] memfd_create("syzkaller", 0 [pid 5851] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5852] <... memfd_create resumed>) = 3 [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5852] 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"..., 16777216) = 16777216 [pid 5852] munmap(0x7f3be0600000, 138412032) = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5852] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5852] ioctl(4, LOOP_CLR_FD) = 0 [pid 5852] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5852] close(4) = 0 [pid 5852] close(3) = 0 [pid 5852] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5852] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] <... futex resumed>) = 0 [pid 5851] exit_group(0 [pid 5852] <... futex resumed>) = ? [pid 5851] <... exit_group resumed>) = ? [pid 5852] +++ exited with 0 +++ [pid 5851] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5853 attached , child_tidptr=0x55557b776690) = 5853 [pid 5853] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5853] setpgid(0, 0) = 0 [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5853] write(3, "1000", 4) = 4 [pid 5853] close(3) = 0 [pid 5853] write(1, "executing program\n", 18executing program ) = 18 [pid 5853] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5853] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5853] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5853] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5853] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5853] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5854 attached [pid 5854] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5854] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5854] rt_sigprocmask(SIG_SETMASK, [], [pid 5853] <... clone3 resumed> => {parent_tid=[5854]}, 88) = 5854 [pid 5854] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5853] rt_sigprocmask(SIG_SETMASK, [], [pid 5854] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5853] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5853] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5854] <... futex resumed>) = 0 [pid 5854] memfd_create("syzkaller", 0 [pid 5853] <... futex resumed>) = 1 [pid 5853] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5854] <... memfd_create resumed>) = 3 [pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5854] 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"..., 16777216) = 16777216 [pid 5854] munmap(0x7f3be0600000, 138412032) = 0 [pid 5854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5854] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5854] ioctl(4, LOOP_CLR_FD) = 0 [pid 5854] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5854] close(4) = 0 [pid 5854] close(3) = 0 [pid 5854] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5853] <... futex resumed>) = 0 [pid 5854] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5853] exit_group(0 [pid 5854] <... futex resumed>) = ? [pid 5853] <... exit_group resumed>) = ? [pid 5854] +++ exited with 0 +++ [pid 5853] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5855 attached , child_tidptr=0x55557b776690) = 5855 [pid 5855] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5855] setpgid(0, 0) = 0 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5855] write(3, "1000", 4) = 4 [pid 5855] close(3) = 0 executing program [pid 5855] write(1, "executing program\n", 18) = 18 [pid 5855] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5855] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5855] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5855] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5855] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5855] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5855] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5856 attached [pid 5856] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5855] <... clone3 resumed> => {parent_tid=[5856]}, 88) = 5856 [pid 5856] <... rseq resumed>) = 0 [pid 5855] rt_sigprocmask(SIG_SETMASK, [], [pid 5856] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5855] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5856] <... set_robust_list resumed>) = 0 [pid 5856] rt_sigprocmask(SIG_SETMASK, [], [pid 5855] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5856] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5855] <... futex resumed>) = 0 [pid 5856] memfd_create("syzkaller", 0 [pid 5855] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5856] <... memfd_create resumed>) = 3 [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5856] 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"..., 16777216) = 16777216 [pid 5856] munmap(0x7f3be0600000, 138412032) = 0 [pid 5856] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5856] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5856] ioctl(4, LOOP_CLR_FD) = 0 [pid 5856] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5856] close(4) = 0 [pid 5856] close(3) = 0 [pid 5856] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5855] <... futex resumed>) = 0 [pid 5856] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5855] exit_group(0 [pid 5856] <... futex resumed>) = ? [pid 5855] <... exit_group resumed>) = ? [pid 5856] +++ exited with 0 +++ [pid 5855] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- 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 5857 attached , child_tidptr=0x55557b776690) = 5857 [pid 5857] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5857] setpgid(0, 0) = 0 [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5857] write(3, "1000", 4) = 4 [pid 5857] close(3) = 0 [pid 5857] write(1, "executing program\n", 18executing program ) = 18 [pid 5857] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5857] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5857] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5857] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5857] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5857] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5857] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5858 attached [pid 5858] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5857] <... clone3 resumed> => {parent_tid=[5858]}, 88) = 5858 [pid 5858] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5857] rt_sigprocmask(SIG_SETMASK, [], [pid 5858] <... set_robust_list resumed>) = 0 [pid 5858] rt_sigprocmask(SIG_SETMASK, [], [pid 5857] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5858] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5857] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5857] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5858] memfd_create("syzkaller", 0) = 3 [pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5858] 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"..., 16777216) = 16777216 [pid 5858] munmap(0x7f3be0600000, 138412032) = 0 [pid 5858] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5858] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5858] ioctl(4, LOOP_CLR_FD) = 0 [pid 5858] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5858] close(4) = 0 [pid 5858] close(3) = 0 [pid 5858] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5858] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5857] <... futex resumed>) = 0 [pid 5857] exit_group(0 [pid 5858] <... futex resumed>) = ? [pid 5857] <... exit_group resumed>) = ? [pid 5858] +++ exited with 0 +++ [pid 5857] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5859 attached , child_tidptr=0x55557b776690) = 5859 [pid 5859] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5859] setpgid(0, 0) = 0 [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5859] write(3, "1000", 4) = 4 [pid 5859] close(3) = 0 executing program [pid 5859] write(1, "executing program\n", 18) = 18 [pid 5859] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5859] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5859] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5859] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5859] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5859] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5859] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5860 attached [pid 5860] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5859] <... clone3 resumed> => {parent_tid=[5860]}, 88) = 5860 [pid 5860] <... rseq resumed>) = 0 [pid 5860] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5859] rt_sigprocmask(SIG_SETMASK, [], [pid 5860] <... set_robust_list resumed>) = 0 [pid 5859] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5860] rt_sigprocmask(SIG_SETMASK, [], [pid 5859] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5860] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5859] <... futex resumed>) = 0 [pid 5860] memfd_create("syzkaller", 0 [pid 5859] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5860] <... memfd_create resumed>) = 3 [pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5860] 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"..., 16777216) = 16777216 [pid 5860] munmap(0x7f3be0600000, 138412032) = 0 [pid 5860] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5860] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5860] ioctl(4, LOOP_CLR_FD) = 0 [pid 5860] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5860] close(4) = 0 [pid 5860] close(3) = 0 [pid 5860] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5860] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5859] <... futex resumed>) = 0 [pid 5859] exit_group(0 [pid 5860] <... futex resumed>) = ? [pid 5859] <... exit_group resumed>) = ? [pid 5860] +++ exited with 0 +++ [pid 5859] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5861 attached , child_tidptr=0x55557b776690) = 5861 [pid 5861] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5861] setpgid(0, 0) = 0 [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5861] write(3, "1000", 4) = 4 [pid 5861] close(3) = 0 [pid 5861] write(1, "executing program\n", 18executing program ) = 18 [pid 5861] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5861] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5861] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5861] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5861] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5861] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5861] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5862 attached [pid 5862] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5861] <... clone3 resumed> => {parent_tid=[5862]}, 88) = 5862 [pid 5862] <... rseq resumed>) = 0 [pid 5862] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5861] rt_sigprocmask(SIG_SETMASK, [], [pid 5862] <... set_robust_list resumed>) = 0 [pid 5861] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5862] rt_sigprocmask(SIG_SETMASK, [], [pid 5861] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5862] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5861] <... futex resumed>) = 0 [pid 5862] memfd_create("syzkaller", 0 [pid 5861] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5862] <... memfd_create resumed>) = 3 [pid 5862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5862] 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"..., 16777216) = 16777216 [pid 5862] munmap(0x7f3be0600000, 138412032) = 0 [pid 5862] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5862] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5862] ioctl(4, LOOP_CLR_FD) = 0 [pid 5862] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5862] close(4) = 0 [pid 5862] close(3) = 0 [pid 5862] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5861] <... futex resumed>) = 0 [pid 5861] exit_group(0 [pid 5862] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5861] <... exit_group resumed>) = ? [pid 5862] +++ exited with 0 +++ [pid 5861] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5861, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5863 attached , child_tidptr=0x55557b776690) = 5863 [pid 5863] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5863] setpgid(0, 0) = 0 [pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5863] write(3, "1000", 4) = 4 [pid 5863] close(3) = 0 [pid 5863] write(1, "executing program\n", 18executing program ) = 18 [pid 5863] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5863] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5863] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5863] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5863] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5863] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5864 attached [pid 5864] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5863] <... clone3 resumed> => {parent_tid=[5864]}, 88) = 5864 [pid 5864] <... rseq resumed>) = 0 [pid 5863] rt_sigprocmask(SIG_SETMASK, [], [pid 5864] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5863] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5864] <... set_robust_list resumed>) = 0 [pid 5863] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5863] <... futex resumed>) = 0 [pid 5864] memfd_create("syzkaller", 0 [pid 5863] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5864] <... memfd_create resumed>) = 3 [pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5864] 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"..., 16777216) = 16777216 [pid 5864] munmap(0x7f3be0600000, 138412032) = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5864] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5864] ioctl(4, LOOP_CLR_FD) = 0 [pid 5864] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5864] close(4) = 0 [pid 5864] close(3) = 0 [pid 5864] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5863] <... futex resumed>) = 0 [pid 5864] <... futex resumed>) = 1 [pid 5863] exit_group(0 [pid 5864] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5863] <... exit_group resumed>) = ? [pid 5864] +++ exited with 0 +++ [pid 5863] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5863, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=10 /* 0.10 s */} --- 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 5865 attached , child_tidptr=0x55557b776690) = 5865 [pid 5865] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5865] setpgid(0, 0) = 0 [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5865] write(3, "1000", 4) = 4 [pid 5865] close(3) = 0 [pid 5865] write(1, "executing program\n", 18executing program ) = 18 [pid 5865] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5865] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5865] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5865] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5865] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5865] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5865] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5866 attached [pid 5866] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5865] <... clone3 resumed> => {parent_tid=[5866]}, 88) = 5866 [pid 5866] <... rseq resumed>) = 0 [pid 5865] rt_sigprocmask(SIG_SETMASK, [], [pid 5866] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5865] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5866] <... set_robust_list resumed>) = 0 [pid 5865] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5865] <... futex resumed>) = 0 [pid 5866] memfd_create("syzkaller", 0 [pid 5865] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5866] <... memfd_create resumed>) = 3 [pid 5866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5866] 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"..., 16777216) = 16777216 [pid 5866] munmap(0x7f3be0600000, 138412032) = 0 [pid 5866] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5866] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5866] ioctl(4, LOOP_CLR_FD) = 0 [pid 5866] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5866] close(4) = 0 [pid 5866] close(3) = 0 [pid 5866] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5865] <... futex resumed>) = 0 [pid 5866] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5865] exit_group(0 [pid 5866] <... futex resumed>) = ? [pid 5865] <... exit_group resumed>) = ? [pid 5866] +++ exited with 0 +++ [pid 5865] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- 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 5867 attached , child_tidptr=0x55557b776690) = 5867 [pid 5867] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5867] setpgid(0, 0) = 0 [pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5867] write(3, "1000", 4) = 4 [pid 5867] close(3) = 0 [pid 5867] write(1, "executing program\n", 18executing program ) = 18 [pid 5867] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5867] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5867] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5867] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5867] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5867] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5868 attached [pid 5868] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5867] <... clone3 resumed> => {parent_tid=[5868]}, 88) = 5868 [pid 5868] <... rseq resumed>) = 0 [pid 5867] rt_sigprocmask(SIG_SETMASK, [], [pid 5868] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5867] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5868] <... set_robust_list resumed>) = 0 [pid 5867] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5867] <... futex resumed>) = 0 [pid 5868] memfd_create("syzkaller", 0 [pid 5867] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5868] <... memfd_create resumed>) = 3 [pid 5868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5868] 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"..., 16777216) = 16777216 [pid 5868] munmap(0x7f3be0600000, 138412032) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5868] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5868] ioctl(4, LOOP_CLR_FD) = 0 [pid 5868] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5868] close(4) = 0 [pid 5868] close(3) = 0 [pid 5868] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... futex resumed>) = 0 [pid 5867] exit_group(0 [pid 5868] <... futex resumed>) = ? [pid 5867] <... exit_group resumed>) = ? [pid 5868] +++ exited with 0 +++ [pid 5867] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5867, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5869 attached , child_tidptr=0x55557b776690) = 5869 [pid 5869] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] setpgid(0, 0) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5869] write(3, "1000", 4) = 4 [pid 5869] close(3) = 0 [pid 5869] write(1, "executing program\n", 18executing program ) = 18 [pid 5869] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5869] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5869] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5869] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5869] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5869] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5870 attached [pid 5870] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5869] <... clone3 resumed> => {parent_tid=[5870]}, 88) = 5870 [pid 5870] <... rseq resumed>) = 0 [pid 5869] rt_sigprocmask(SIG_SETMASK, [], [pid 5870] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5869] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5870] <... set_robust_list resumed>) = 0 [pid 5869] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5869] <... futex resumed>) = 0 [pid 5870] memfd_create("syzkaller", 0 [pid 5869] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5870] <... memfd_create resumed>) = 3 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5870] 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"..., 16777216) = 16777216 [pid 5870] munmap(0x7f3be0600000, 138412032) = 0 [pid 5870] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5870] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5870] ioctl(4, LOOP_CLR_FD) = 0 [pid 5870] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5870] close(4) = 0 [pid 5870] close(3) = 0 [pid 5870] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... futex resumed>) = 0 [pid 5869] exit_group(0 [pid 5870] <... futex resumed>) = ? [pid 5869] <... exit_group resumed>) = ? [pid 5870] +++ exited with 0 +++ [pid 5869] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5871 attached , child_tidptr=0x55557b776690) = 5871 [pid 5871] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5871] setpgid(0, 0) = 0 [pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5871] write(3, "1000", 4) = 4 [pid 5871] close(3) = 0 [pid 5871] write(1, "executing program\n", 18executing program ) = 18 [pid 5871] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5871] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5871] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5871] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5871] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5871] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5871] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5872 attached [pid 5872] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5871] <... clone3 resumed> => {parent_tid=[5872]}, 88) = 5872 [pid 5872] <... rseq resumed>) = 0 [pid 5871] rt_sigprocmask(SIG_SETMASK, [], [pid 5872] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5871] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5871] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5871] <... futex resumed>) = 0 [pid 5872] memfd_create("syzkaller", 0 [pid 5871] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] <... memfd_create resumed>) = 3 [pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5872] 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"..., 16777216) = 16777216 [pid 5872] munmap(0x7f3be0600000, 138412032) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5872] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5872] ioctl(4, LOOP_CLR_FD) = 0 [pid 5872] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5872] close(4) = 0 [pid 5872] close(3) = 0 [pid 5872] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5871] <... futex resumed>) = 0 [pid 5872] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5871] exit_group(0) = ? [pid 5872] <... futex resumed>) = ? [pid 5872] +++ exited with 0 +++ [pid 5871] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5871, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5873 attached , child_tidptr=0x55557b776690) = 5873 [pid 5873] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5873] setpgid(0, 0) = 0 [pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5873] write(3, "1000", 4) = 4 [pid 5873] close(3) = 0 executing program [pid 5873] write(1, "executing program\n", 18) = 18 [pid 5873] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5873] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5873] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5873] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5873] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5874 attached [pid 5874] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5873] <... clone3 resumed> => {parent_tid=[5874]}, 88) = 5874 [pid 5874] <... rseq resumed>) = 0 [pid 5873] rt_sigprocmask(SIG_SETMASK, [], [pid 5874] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5873] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5874] <... set_robust_list resumed>) = 0 [pid 5873] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5874] rt_sigprocmask(SIG_SETMASK, [], [pid 5873] <... futex resumed>) = 0 [pid 5874] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5874] memfd_create("syzkaller", 0 [pid 5873] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5874] <... memfd_create resumed>) = 3 [pid 5874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5874] 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"..., 16777216) = 16777216 [pid 5874] munmap(0x7f3be0600000, 138412032) = 0 [pid 5874] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5874] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5874] ioctl(4, LOOP_CLR_FD) = 0 [pid 5874] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5874] close(4) = 0 [pid 5874] close(3) = 0 [pid 5874] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5873] <... futex resumed>) = 0 [pid 5874] <... futex resumed>) = 1 [pid 5873] exit_group(0 [pid 5874] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5873] <... exit_group resumed>) = ? [pid 5874] +++ exited with 0 +++ [pid 5873] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5875 attached , child_tidptr=0x55557b776690) = 5875 [pid 5875] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5875] setpgid(0, 0) = 0 [pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5875] write(3, "1000", 4) = 4 [pid 5875] close(3) = 0 executing program [pid 5875] write(1, "executing program\n", 18) = 18 [pid 5875] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5875] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5875] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5875] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5875] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5875] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5875] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5876 attached [pid 5876] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5875] <... clone3 resumed> => {parent_tid=[5876]}, 88) = 5876 [pid 5876] <... rseq resumed>) = 0 [pid 5875] rt_sigprocmask(SIG_SETMASK, [], [pid 5876] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5875] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5876] <... set_robust_list resumed>) = 0 [pid 5875] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5876] rt_sigprocmask(SIG_SETMASK, [], [pid 5875] <... futex resumed>) = 0 [pid 5876] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5876] memfd_create("syzkaller", 0 [pid 5875] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5876] <... memfd_create resumed>) = 3 [pid 5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5876] 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"..., 16777216) = 16777216 [pid 5876] munmap(0x7f3be0600000, 138412032) = 0 [pid 5876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5876] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5876] ioctl(4, LOOP_CLR_FD) = 0 [pid 5876] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5876] close(4) = 0 [pid 5876] close(3) = 0 [pid 5876] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5875] <... futex resumed>) = 0 [pid 5876] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5875] exit_group(0) = ? [pid 5876] <... futex resumed>) = ? [pid 5876] +++ exited with 0 +++ [pid 5875] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5877 attached , child_tidptr=0x55557b776690) = 5877 [pid 5877] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5877] setpgid(0, 0) = 0 [pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5877] write(3, "1000", 4) = 4 [pid 5877] close(3) = 0 [pid 5877] write(1, "executing program\n", 18executing program ) = 18 [pid 5877] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5877] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5877] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5877] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5877] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5877] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5878 attached [pid 5878] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5877] <... clone3 resumed> => {parent_tid=[5878]}, 88) = 5878 [pid 5878] <... rseq resumed>) = 0 [pid 5877] rt_sigprocmask(SIG_SETMASK, [], [pid 5878] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5877] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5878] <... set_robust_list resumed>) = 0 [pid 5877] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5877] <... futex resumed>) = 0 [pid 5877] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5878] memfd_create("syzkaller", 0) = 3 [pid 5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5878] 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"..., 16777216) = 16777216 [pid 5878] munmap(0x7f3be0600000, 138412032) = 0 [pid 5878] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5878] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5878] ioctl(4, LOOP_CLR_FD) = 0 [pid 5878] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5878] close(4) = 0 [pid 5878] close(3) = 0 [pid 5878] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5878] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5877] <... futex resumed>) = 0 [pid 5877] exit_group(0 [pid 5878] <... futex resumed>) = ? [pid 5877] <... exit_group resumed>) = ? [pid 5878] +++ exited with 0 +++ [pid 5877] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5877, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5879 attached , child_tidptr=0x55557b776690) = 5879 [pid 5879] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5879] setpgid(0, 0) = 0 [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5879] write(3, "1000", 4) = 4 [pid 5879] close(3) = 0 [pid 5879] write(1, "executing program\n", 18executing program ) = 18 [pid 5879] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5879] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5879] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5879] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5879] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5879] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5879] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5880 attached [pid 5880] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5879] <... clone3 resumed> => {parent_tid=[5880]}, 88) = 5880 [pid 5880] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5879] rt_sigprocmask(SIG_SETMASK, [], [pid 5880] <... set_robust_list resumed>) = 0 [pid 5879] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5880] rt_sigprocmask(SIG_SETMASK, [], [pid 5879] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5880] memfd_create("syzkaller", 0 [pid 5879] <... futex resumed>) = 0 [pid 5880] <... memfd_create resumed>) = 3 [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5879] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5880] 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"..., 16777216) = 16777216 [pid 5880] munmap(0x7f3be0600000, 138412032) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5880] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5880] ioctl(4, LOOP_CLR_FD) = 0 [pid 5880] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5880] close(4) = 0 [pid 5880] close(3) = 0 [pid 5880] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5879] <... futex resumed>) = 0 [pid 5879] exit_group(0) = ? [pid 5880] <... futex resumed>) = ? [pid 5880] +++ exited with 0 +++ [pid 5879] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5881 attached , child_tidptr=0x55557b776690) = 5881 [pid 5881] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5881] setpgid(0, 0) = 0 [pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5881] write(3, "1000", 4) = 4 [pid 5881] close(3) = 0 executing program [pid 5881] write(1, "executing program\n", 18) = 18 [pid 5881] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5881] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5881] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5881] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5881] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5881] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5882 attached [pid 5882] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5881] <... clone3 resumed> => {parent_tid=[5882]}, 88) = 5882 [pid 5882] <... rseq resumed>) = 0 [pid 5881] rt_sigprocmask(SIG_SETMASK, [], [pid 5882] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5881] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5882] <... set_robust_list resumed>) = 0 [pid 5881] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5882] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5881] <... futex resumed>) = 0 [pid 5882] memfd_create("syzkaller", 0 [pid 5881] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5882] <... memfd_create resumed>) = 3 [pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5882] 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"..., 16777216) = 16777216 [pid 5882] munmap(0x7f3be0600000, 138412032) = 0 [pid 5882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5882] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5882] ioctl(4, LOOP_CLR_FD) = 0 [pid 5882] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5882] close(4) = 0 [pid 5882] close(3) = 0 [pid 5882] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5882] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5881] <... futex resumed>) = 0 [pid 5881] exit_group(0 [pid 5882] <... futex resumed>) = ? [pid 5881] <... exit_group resumed>) = ? [pid 5882] +++ exited with 0 +++ [pid 5881] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5883 attached , child_tidptr=0x55557b776690) = 5883 [pid 5883] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5883] setpgid(0, 0) = 0 [pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5883] write(3, "1000", 4) = 4 [pid 5883] close(3) = 0 [pid 5883] write(1, "executing program\n", 18executing program ) = 18 [pid 5883] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5883] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5883] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5883] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5883] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5883] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5884 attached => {parent_tid=[5884]}, 88) = 5884 [pid 5883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5883] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5883] <... futex resumed>) = 0 [pid 5884] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5883] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5884] <... set_robust_list resumed>) = 0 [pid 5884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5884] memfd_create("syzkaller", 0) = 3 [pid 5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5884] 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"..., 16777216) = 16777216 [pid 5884] munmap(0x7f3be0600000, 138412032) = 0 [pid 5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5884] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5884] ioctl(4, LOOP_CLR_FD) = 0 [pid 5884] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5884] close(4) = 0 [pid 5884] close(3) = 0 [pid 5884] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5884] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5883] <... futex resumed>) = 0 [pid 5883] exit_group(0) = ? [pid 5884] <... futex resumed>) = ? [pid 5884] +++ exited with 0 +++ [pid 5883] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5885 attached , child_tidptr=0x55557b776690) = 5885 [pid 5885] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5885] setpgid(0, 0) = 0 [pid 5885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5885] write(3, "1000", 4) = 4 [pid 5885] close(3) = 0 executing program [pid 5885] write(1, "executing program\n", 18) = 18 [pid 5885] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5885] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5885] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5885] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5885] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5885] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5885] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5886 attached [pid 5886] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5885] <... clone3 resumed> => {parent_tid=[5886]}, 88) = 5886 [pid 5886] <... rseq resumed>) = 0 [pid 5885] rt_sigprocmask(SIG_SETMASK, [], [pid 5886] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5885] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5886] <... set_robust_list resumed>) = 0 [pid 5885] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5885] <... futex resumed>) = 0 [pid 5885] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5886] memfd_create("syzkaller", 0) = 3 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5886] 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"..., 16777216) = 16777216 [pid 5886] munmap(0x7f3be0600000, 138412032) = 0 [pid 5886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5886] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5886] ioctl(4, LOOP_CLR_FD) = 0 [pid 5886] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5886] close(4) = 0 [pid 5886] close(3) = 0 [pid 5886] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5886] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5885] <... futex resumed>) = 0 [pid 5885] exit_group(0) = ? [pid 5886] <... futex resumed>) = ? [pid 5886] +++ exited with 0 +++ [pid 5885] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5885, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5887 attached , child_tidptr=0x55557b776690) = 5887 [pid 5887] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5887] setpgid(0, 0) = 0 [pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5887] write(3, "1000", 4) = 4 [pid 5887] close(3) = 0 executing program [pid 5887] write(1, "executing program\n", 18) = 18 [pid 5887] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5887] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5887] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5887] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5887] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5887] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5887] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5888 attached [pid 5888] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5887] <... clone3 resumed> => {parent_tid=[5888]}, 88) = 5888 [pid 5888] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5887] rt_sigprocmask(SIG_SETMASK, [], [pid 5888] rt_sigprocmask(SIG_SETMASK, [], [pid 5887] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5888] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5887] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5888] memfd_create("syzkaller", 0 [pid 5887] <... futex resumed>) = 0 [pid 5888] <... memfd_create resumed>) = 3 [pid 5887] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5888] 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"..., 16777216) = 16777216 [pid 5888] munmap(0x7f3be0600000, 138412032) = 0 [pid 5888] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5888] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5888] ioctl(4, LOOP_CLR_FD) = 0 [pid 5888] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5888] close(4) = 0 [pid 5888] close(3) = 0 [pid 5888] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5887] <... futex resumed>) = 0 [pid 5888] <... futex resumed>) = 1 [pid 5887] exit_group(0 [pid 5888] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5888] +++ exited with 0 +++ [pid 5887] <... exit_group resumed>) = ? [pid 5887] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5889 attached , child_tidptr=0x55557b776690) = 5889 [pid 5889] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5889] setpgid(0, 0) = 0 [pid 5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5889] write(3, "1000", 4) = 4 [pid 5889] close(3) = 0 [pid 5889] write(1, "executing program\n", 18executing program ) = 18 [pid 5889] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5889] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5889] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5889] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5889] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5889] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5890 attached [pid 5890] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5889] <... clone3 resumed> => {parent_tid=[5890]}, 88) = 5890 [pid 5890] <... rseq resumed>) = 0 [pid 5889] rt_sigprocmask(SIG_SETMASK, [], [pid 5890] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5889] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5890] <... set_robust_list resumed>) = 0 [pid 5889] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5889] <... futex resumed>) = 0 [pid 5890] memfd_create("syzkaller", 0 [pid 5889] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5890] <... memfd_create resumed>) = 3 [pid 5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5890] 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"..., 16777216) = 16777216 [pid 5890] munmap(0x7f3be0600000, 138412032) = 0 [pid 5890] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5890] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5890] ioctl(4, LOOP_CLR_FD) = 0 [pid 5890] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5890] close(4) = 0 [pid 5890] close(3) = 0 [pid 5890] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] <... futex resumed>) = 0 [pid 5890] <... futex resumed>) = 1 [pid 5889] exit_group(0 [pid 5890] +++ exited with 0 +++ [pid 5889] <... exit_group resumed>) = ? [pid 5889] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5889, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5891 attached , child_tidptr=0x55557b776690) = 5891 [pid 5891] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5891] setpgid(0, 0) = 0 [pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5891] write(3, "1000", 4) = 4 [pid 5891] close(3) = 0 [pid 5891] write(1, "executing program\n", 18executing program ) = 18 [pid 5891] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5891] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5891] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5891] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5891] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5891] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5891] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5892 attached [pid 5892] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5891] <... clone3 resumed> => {parent_tid=[5892]}, 88) = 5892 [pid 5892] <... rseq resumed>) = 0 [pid 5891] rt_sigprocmask(SIG_SETMASK, [], [pid 5892] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5891] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5892] <... set_robust_list resumed>) = 0 [pid 5891] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] rt_sigprocmask(SIG_SETMASK, [], [pid 5891] <... futex resumed>) = 0 [pid 5892] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5891] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5892] memfd_create("syzkaller", 0) = 3 [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5892] 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"..., 16777216) = 16777216 [pid 5892] munmap(0x7f3be0600000, 138412032) = 0 [pid 5892] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5892] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5892] ioctl(4, LOOP_CLR_FD) = 0 [pid 5892] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5892] close(4) = 0 [pid 5892] close(3) = 0 [pid 5892] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5892] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5891] <... futex resumed>) = 0 [pid 5891] exit_group(0) = ? [pid 5892] <... futex resumed>) = ? [pid 5892] +++ exited with 0 +++ [pid 5891] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5893 attached , child_tidptr=0x55557b776690) = 5893 [pid 5893] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5893] setpgid(0, 0) = 0 [pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5893] write(3, "1000", 4) = 4 [pid 5893] close(3) = 0 [pid 5893] write(1, "executing program\n", 18executing program ) = 18 [pid 5893] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5893] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5893] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5893] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5893] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5893] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5893] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5894 attached => {parent_tid=[5894]}, 88) = 5894 [pid 5894] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5894] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5893] rt_sigprocmask(SIG_SETMASK, [], [pid 5894] rt_sigprocmask(SIG_SETMASK, [], [pid 5893] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5894] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5893] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5894] memfd_create("syzkaller", 0 [pid 5893] <... futex resumed>) = 0 [pid 5893] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5894] <... memfd_create resumed>) = 3 [pid 5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5894] 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"..., 16777216) = 16777216 [pid 5894] munmap(0x7f3be0600000, 138412032) = 0 [pid 5894] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5894] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5894] ioctl(4, LOOP_CLR_FD) = 0 [pid 5894] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5894] close(4) = 0 [pid 5894] close(3) = 0 [pid 5894] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5893] <... futex resumed>) = 0 [pid 5894] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5893] exit_group(0 [pid 5894] <... futex resumed>) = ? [pid 5893] <... exit_group resumed>) = ? [pid 5894] +++ exited with 0 +++ [pid 5893] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5893, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5895 attached , child_tidptr=0x55557b776690) = 5895 [pid 5895] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5895] setpgid(0, 0) = 0 [pid 5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5895] write(3, "1000", 4) = 4 [pid 5895] close(3) = 0 [pid 5895] write(1, "executing program\n", 18executing program ) = 18 [pid 5895] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5895] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5895] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5895] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5895] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5895] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5896 attached [pid 5896] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5895] <... clone3 resumed> => {parent_tid=[5896]}, 88) = 5896 [pid 5896] <... rseq resumed>) = 0 [pid 5895] rt_sigprocmask(SIG_SETMASK, [], [pid 5896] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5895] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5896] <... set_robust_list resumed>) = 0 [pid 5895] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5895] <... futex resumed>) = 0 [pid 5896] memfd_create("syzkaller", 0 [pid 5895] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5896] <... memfd_create resumed>) = 3 [pid 5896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5896] 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"..., 16777216) = 16777216 [pid 5896] munmap(0x7f3be0600000, 138412032) = 0 [pid 5896] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5896] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5896] ioctl(4, LOOP_CLR_FD) = 0 [pid 5896] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5896] close(4) = 0 [pid 5896] close(3) = 0 [pid 5896] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5895] <... futex resumed>) = 0 [pid 5896] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5895] exit_group(0 [pid 5896] <... futex resumed>) = ? [pid 5895] <... exit_group resumed>) = ? [pid 5896] +++ exited with 0 +++ [pid 5895] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5895, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5897 attached , child_tidptr=0x55557b776690) = 5897 [pid 5897] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5897] setpgid(0, 0) = 0 [pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5897] write(3, "1000", 4) = 4 [pid 5897] close(3) = 0 [pid 5897] write(1, "executing program\n", 18executing program ) = 18 [pid 5897] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5897] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5897] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5897] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5897] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5897] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5897] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5898 attached [pid 5898] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5897] <... clone3 resumed> => {parent_tid=[5898]}, 88) = 5898 [pid 5898] <... rseq resumed>) = 0 [pid 5898] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5897] rt_sigprocmask(SIG_SETMASK, [], [pid 5898] <... set_robust_list resumed>) = 0 [pid 5897] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5897] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5897] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5898] memfd_create("syzkaller", 0) = 3 [pid 5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5898] 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"..., 16777216) = 16777216 [pid 5898] munmap(0x7f3be0600000, 138412032) = 0 [pid 5898] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5898] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5898] ioctl(4, LOOP_CLR_FD) = 0 [pid 5898] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5898] close(4) = 0 [pid 5898] close(3) = 0 [pid 5898] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5897] <... futex resumed>) = 0 [pid 5898] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5897] exit_group(0) = ? [pid 5898] <... futex resumed>) = ? [pid 5898] +++ exited with 0 +++ [pid 5897] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5899 attached , child_tidptr=0x55557b776690) = 5899 [pid 5899] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5899] setpgid(0, 0) = 0 [pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5899] write(3, "1000", 4) = 4 [pid 5899] close(3) = 0 [pid 5899] write(1, "executing program\n", 18executing program ) = 18 [pid 5899] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5899] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5899] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5899] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5899] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5899] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5900 attached [pid 5900] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5899] <... clone3 resumed> => {parent_tid=[5900]}, 88) = 5900 [pid 5900] <... rseq resumed>) = 0 [pid 5900] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5899] rt_sigprocmask(SIG_SETMASK, [], [pid 5900] rt_sigprocmask(SIG_SETMASK, [], [pid 5899] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5899] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5899] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5900] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5900] memfd_create("syzkaller", 0) = 3 [pid 5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5900] 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"..., 16777216) = 16777216 [pid 5900] munmap(0x7f3be0600000, 138412032) = 0 [pid 5900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5900] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5900] ioctl(4, LOOP_CLR_FD) = 0 [pid 5900] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5900] close(4) = 0 [pid 5900] close(3) = 0 [pid 5900] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5900] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5899] <... futex resumed>) = 0 [pid 5899] exit_group(0) = ? [pid 5900] <... futex resumed>) = ? [pid 5900] +++ exited with 0 +++ [pid 5899] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5899, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5901 attached , child_tidptr=0x55557b776690) = 5901 [pid 5901] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5901] setpgid(0, 0) = 0 [pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5901] write(3, "1000", 4) = 4 [pid 5901] close(3) = 0 executing program [pid 5901] write(1, "executing program\n", 18) = 18 [pid 5901] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5901] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5901] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5902 attached [pid 5902] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5901] <... clone3 resumed> => {parent_tid=[5902]}, 88) = 5902 [pid 5902] <... rseq resumed>) = 0 [pid 5901] rt_sigprocmask(SIG_SETMASK, [], [pid 5902] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5901] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5901] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5901] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5902] <... set_robust_list resumed>) = 0 [pid 5902] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5902] memfd_create("syzkaller", 0) = 3 [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5902] 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"..., 16777216) = 16777216 [pid 5902] munmap(0x7f3be0600000, 138412032) = 0 [pid 5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5902] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5902] ioctl(4, LOOP_CLR_FD) = 0 [pid 5902] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5902] close(4) = 0 [pid 5902] close(3) = 0 [pid 5902] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5902] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] exit_group(0 [pid 5902] <... futex resumed>) = ? [pid 5901] <... exit_group resumed>) = ? [pid 5902] +++ exited with 0 +++ [pid 5901] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5901, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5903 attached , child_tidptr=0x55557b776690) = 5903 [pid 5903] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5903] setpgid(0, 0) = 0 [pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5903] write(3, "1000", 4) = 4 [pid 5903] close(3) = 0 [pid 5903] write(1, "executing program\n", 18executing program ) = 18 [pid 5903] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5903] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5903] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5903] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5903] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5903] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5904 attached [pid 5904] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5903] <... clone3 resumed> => {parent_tid=[5904]}, 88) = 5904 [pid 5904] <... rseq resumed>) = 0 [pid 5904] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5903] rt_sigprocmask(SIG_SETMASK, [], [pid 5904] <... set_robust_list resumed>) = 0 [pid 5903] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5904] rt_sigprocmask(SIG_SETMASK, [], [pid 5903] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5904] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5903] <... futex resumed>) = 0 [pid 5903] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5904] memfd_create("syzkaller", 0) = 3 [pid 5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5904] 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"..., 16777216) = 16777216 [pid 5904] munmap(0x7f3be0600000, 138412032) = 0 [pid 5904] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5904] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5904] ioctl(4, LOOP_CLR_FD) = 0 [pid 5904] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5904] close(4) = 0 [pid 5904] close(3) = 0 [pid 5904] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5903] <... futex resumed>) = 0 [pid 5904] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5903] exit_group(0 [pid 5904] <... futex resumed>) = ? [pid 5903] <... exit_group resumed>) = ? [pid 5904] +++ exited with 0 +++ [pid 5903] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5905 attached , child_tidptr=0x55557b776690) = 5905 [pid 5905] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5905] setpgid(0, 0) = 0 [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5905] write(3, "1000", 4) = 4 [pid 5905] close(3) = 0 executing program [pid 5905] write(1, "executing program\n", 18) = 18 [pid 5905] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5905] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5905] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5905] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5905] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5905] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5906 attached => {parent_tid=[5906]}, 88) = 5906 [pid 5906] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5905] rt_sigprocmask(SIG_SETMASK, [], [pid 5906] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5905] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5906] <... set_robust_list resumed>) = 0 [pid 5905] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5905] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5906] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5906] memfd_create("syzkaller", 0) = 3 [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5906] 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"..., 16777216) = 16777216 [pid 5906] munmap(0x7f3be0600000, 138412032) = 0 [pid 5906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5906] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5906] ioctl(4, LOOP_CLR_FD) = 0 [pid 5906] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5906] close(4) = 0 [pid 5906] close(3) = 0 [pid 5906] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5906] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5905] exit_group(0 [pid 5906] <... futex resumed>) = ? [pid 5905] <... exit_group resumed>) = ? [pid 5906] +++ exited with 0 +++ [pid 5905] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 5907 attached , child_tidptr=0x55557b776690) = 5907 [pid 5907] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5907] setpgid(0, 0) = 0 [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5907] write(3, "1000", 4) = 4 [pid 5907] close(3) = 0 [pid 5907] write(1, "executing program\n", 18executing program ) = 18 [pid 5907] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5907] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5907] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5908 attached [pid 5908] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5907] <... clone3 resumed> => {parent_tid=[5908]}, 88) = 5908 [pid 5908] <... rseq resumed>) = 0 [pid 5907] rt_sigprocmask(SIG_SETMASK, [], [pid 5908] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5907] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5908] <... set_robust_list resumed>) = 0 [pid 5907] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5907] <... futex resumed>) = 0 [pid 5907] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5908] memfd_create("syzkaller", 0) = 3 [pid 5908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5908] 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"..., 16777216) = 16777216 [pid 5908] munmap(0x7f3be0600000, 138412032) = 0 [pid 5908] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5908] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5908] ioctl(4, LOOP_CLR_FD) = 0 [pid 5908] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5908] close(4) = 0 [pid 5908] close(3) = 0 [pid 5908] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5908] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5907] <... futex resumed>) = 0 [pid 5907] exit_group(0 [pid 5908] <... futex resumed>) = ? [pid 5907] <... exit_group resumed>) = ? [pid 5908] +++ exited with 0 +++ [pid 5907] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- 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 5911 attached , child_tidptr=0x55557b776690) = 5911 [pid 5911] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5911] setpgid(0, 0) = 0 [pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5911] write(3, "1000", 4) = 4 [pid 5911] close(3) = 0 [pid 5911] write(1, "executing program\n", 18executing program ) = 18 [pid 5911] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5911] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5911] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5911] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5911] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5912 attached [pid 5912] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5912] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5912] rt_sigprocmask(SIG_SETMASK, [], [pid 5911] <... clone3 resumed> => {parent_tid=[5912]}, 88) = 5912 [pid 5912] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5911] rt_sigprocmask(SIG_SETMASK, [], [pid 5912] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5911] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5911] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... futex resumed>) = 0 [pid 5912] memfd_create("syzkaller", 0 [pid 5911] <... futex resumed>) = 1 [pid 5911] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5912] <... memfd_create resumed>) = 3 [pid 5912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5912] 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"..., 16777216) = 16777216 [pid 5912] munmap(0x7f3be0600000, 138412032) = 0 [pid 5912] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5912] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5912] ioctl(4, LOOP_CLR_FD) = 0 [pid 5912] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5912] close(4) = 0 [pid 5912] close(3) = 0 [pid 5912] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5911] <... futex resumed>) = 0 [pid 5912] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5911] exit_group(0 [pid 5912] <... futex resumed>) = ? [pid 5911] <... exit_group resumed>) = ? [pid 5912] +++ exited with 0 +++ [pid 5911] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5913 attached , child_tidptr=0x55557b776690) = 5913 [pid 5913] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5913] setpgid(0, 0) = 0 [pid 5913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5913] write(3, "1000", 4) = 4 [pid 5913] close(3) = 0 [pid 5913] write(1, "executing program\n", 18executing program ) = 18 [pid 5913] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5913] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5913] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5913] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5913] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5913] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5914 attached => {parent_tid=[5914]}, 88) = 5914 [pid 5914] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5913] rt_sigprocmask(SIG_SETMASK, [], [pid 5914] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5913] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5914] <... set_robust_list resumed>) = 0 [pid 5914] rt_sigprocmask(SIG_SETMASK, [], [pid 5913] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5914] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5913] <... futex resumed>) = 0 [pid 5914] memfd_create("syzkaller", 0 [pid 5913] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5914] <... memfd_create resumed>) = 3 [pid 5914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5914] 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"..., 16777216) = 16777216 [pid 5914] munmap(0x7f3be0600000, 138412032) = 0 [pid 5914] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5914] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5914] ioctl(4, LOOP_CLR_FD) = 0 [pid 5914] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5914] close(4) = 0 [pid 5914] close(3) = 0 [pid 5914] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5913] <... futex resumed>) = 0 [pid 5914] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5913] exit_group(0 [pid 5914] <... futex resumed>) = ? [pid 5914] +++ exited with 0 +++ [pid 5913] <... exit_group resumed>) = ? [pid 5913] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5913, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5916 attached , child_tidptr=0x55557b776690) = 5916 [pid 5916] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5916] setpgid(0, 0) = 0 [pid 5916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5916] write(3, "1000", 4) = 4 [pid 5916] close(3) = 0 [pid 5916] write(1, "executing program\n", 18executing program ) = 18 [pid 5916] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5916] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5916] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5916] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5916] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5916] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5916] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5917 attached [pid 5917] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5916] <... clone3 resumed> => {parent_tid=[5917]}, 88) = 5917 [pid 5917] <... rseq resumed>) = 0 [pid 5916] rt_sigprocmask(SIG_SETMASK, [], [pid 5917] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5916] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5917] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5916] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5916] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5917] memfd_create("syzkaller", 0) = 3 [pid 5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5917] 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"..., 16777216) = 16777216 [pid 5917] munmap(0x7f3be0600000, 138412032) = 0 [pid 5917] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5917] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5917] ioctl(4, LOOP_CLR_FD) = 0 [pid 5917] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5917] close(4) = 0 [pid 5917] close(3) = 0 [pid 5917] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5916] <... futex resumed>) = 0 [pid 5917] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5916] exit_group(0 [pid 5917] <... futex resumed>) = ? [pid 5917] +++ exited with 0 +++ [pid 5916] <... exit_group resumed>) = ? [pid 5916] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5916, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5918 attached , child_tidptr=0x55557b776690) = 5918 [pid 5918] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5918] setpgid(0, 0) = 0 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5918] write(3, "1000", 4) = 4 [pid 5918] close(3) = 0 [pid 5918] write(1, "executing program\n", 18executing program ) = 18 [pid 5918] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5918] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5918] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5918] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5918] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5918] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5918] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5919 attached => {parent_tid=[5919]}, 88) = 5919 [pid 5918] rt_sigprocmask(SIG_SETMASK, [], [pid 5919] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5918] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5919] <... rseq resumed>) = 0 [pid 5919] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5918] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5919] memfd_create("syzkaller", 0 [pid 5918] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5919] <... memfd_create resumed>) = 3 [pid 5919] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5919] 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"..., 16777216) = 16777216 [pid 5919] munmap(0x7f3be0600000, 138412032) = 0 [pid 5919] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5919] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5919] ioctl(4, LOOP_CLR_FD) = 0 [pid 5919] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5919] close(4) = 0 [pid 5919] close(3) = 0 [pid 5919] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5918] <... futex resumed>) = 0 [pid 5919] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5918] exit_group(0 [pid 5919] <... futex resumed>) = ? [pid 5918] <... exit_group resumed>) = ? [pid 5919] +++ exited with 0 +++ [pid 5918] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5918, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 5920 attached , child_tidptr=0x55557b776690) = 5920 [pid 5920] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5920] setpgid(0, 0) = 0 [pid 5920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5920] write(3, "1000", 4) = 4 [pid 5920] close(3) = 0 [pid 5920] write(1, "executing program\n", 18executing program ) = 18 [pid 5920] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5920] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5920] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5920] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5920] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5920] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5921 attached [pid 5921] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5920] <... clone3 resumed> => {parent_tid=[5921]}, 88) = 5921 [pid 5921] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5920] rt_sigprocmask(SIG_SETMASK, [], [pid 5921] <... set_robust_list resumed>) = 0 [pid 5920] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5921] rt_sigprocmask(SIG_SETMASK, [], [pid 5920] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5921] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5920] <... futex resumed>) = 0 [pid 5921] memfd_create("syzkaller", 0 [pid 5920] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5921] <... memfd_create resumed>) = 3 [pid 5921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5921] 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"..., 16777216) = 16777216 [pid 5921] munmap(0x7f3be0600000, 138412032) = 0 [pid 5921] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5921] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5921] ioctl(4, LOOP_CLR_FD) = 0 [pid 5921] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5921] close(4) = 0 [pid 5921] close(3) = 0 [pid 5921] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5921] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5920] <... futex resumed>) = 0 [pid 5920] exit_group(0 [pid 5921] <... futex resumed>) = ? [pid 5920] <... exit_group resumed>) = ? [pid 5921] +++ exited with 0 +++ [pid 5920] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5920, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5922 attached , child_tidptr=0x55557b776690) = 5922 [pid 5922] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5922] setpgid(0, 0) = 0 [pid 5922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5922] write(3, "1000", 4) = 4 [pid 5922] close(3) = 0 [pid 5922] write(1, "executing program\n", 18executing program ) = 18 [pid 5922] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5922] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5922] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5922] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5922] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5922] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5923 attached [pid 5923] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5922] <... clone3 resumed> => {parent_tid=[5923]}, 88) = 5923 [pid 5923] <... rseq resumed>) = 0 [pid 5922] rt_sigprocmask(SIG_SETMASK, [], [pid 5923] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5922] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5923] <... set_robust_list resumed>) = 0 [pid 5922] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5922] <... futex resumed>) = 0 [pid 5923] memfd_create("syzkaller", 0 [pid 5922] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5923] <... memfd_create resumed>) = 3 [pid 5923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5923] 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"..., 16777216) = 16777216 [pid 5923] munmap(0x7f3be0600000, 138412032) = 0 [pid 5923] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5923] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5923] ioctl(4, LOOP_CLR_FD) = 0 [pid 5923] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5923] close(4) = 0 [pid 5923] close(3) = 0 [pid 5923] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5923] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5922] <... futex resumed>) = 0 [pid 5922] exit_group(0) = ? [pid 5923] <... futex resumed>) = ? [pid 5923] +++ exited with 0 +++ [pid 5922] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5922, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 5924 attached , child_tidptr=0x55557b776690) = 5924 [pid 5924] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5924] setpgid(0, 0) = 0 [pid 5924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5924] write(3, "1000", 4) = 4 [pid 5924] close(3) = 0 [pid 5924] write(1, "executing program\n", 18executing program ) = 18 [pid 5924] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5924] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5924] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5925 attached => {parent_tid=[5925]}, 88) = 5925 [pid 5924] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5925] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5924] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5925] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5924] <... futex resumed>) = 0 [pid 5925] <... set_robust_list resumed>) = 0 [pid 5925] rt_sigprocmask(SIG_SETMASK, [], [pid 5924] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5925] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5925] memfd_create("syzkaller", 0) = 3 [pid 5925] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5925] 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"..., 16777216) = 16777216 [pid 5925] munmap(0x7f3be0600000, 138412032) = 0 [pid 5925] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5925] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5925] ioctl(4, LOOP_CLR_FD) = 0 [pid 5925] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5925] close(4) = 0 [pid 5925] close(3) = 0 [pid 5925] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5924] <... futex resumed>) = 0 [pid 5925] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5924] exit_group(0 [pid 5925] <... futex resumed>) = ? [pid 5925] +++ exited with 0 +++ [pid 5924] <... exit_group resumed>) = ? [pid 5924] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5924, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 5926 attached , child_tidptr=0x55557b776690) = 5926 [pid 5926] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5926] setpgid(0, 0) = 0 [pid 5926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5926] write(3, "1000", 4) = 4 [pid 5926] close(3executing program ) = 0 [pid 5926] write(1, "executing program\n", 18) = 18 [pid 5926] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5926] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5926] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5926] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5926] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5927 attached [pid 5927] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5926] <... clone3 resumed> => {parent_tid=[5927]}, 88) = 5927 [pid 5927] <... rseq resumed>) = 0 [pid 5926] rt_sigprocmask(SIG_SETMASK, [], [pid 5927] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5926] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5927] <... set_robust_list resumed>) = 0 [pid 5926] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] rt_sigprocmask(SIG_SETMASK, [], [pid 5926] <... futex resumed>) = 0 [pid 5926] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5927] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5927] memfd_create("syzkaller", 0) = 3 [pid 5927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5927] 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"..., 16777216) = 16777216 [pid 5927] munmap(0x7f3be0600000, 138412032) = 0 [pid 5927] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5927] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5927] ioctl(4, LOOP_CLR_FD) = 0 [pid 5927] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5927] close(4) = 0 [pid 5927] close(3) = 0 [pid 5927] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5926] <... futex resumed>) = 0 [pid 5927] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] exit_group(0 [pid 5927] <... futex resumed>) = ? [pid 5927] +++ exited with 0 +++ [pid 5926] <... exit_group resumed>) = ? [pid 5926] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5926, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=12 /* 0.12 s */} --- 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 5929 attached , child_tidptr=0x55557b776690) = 5929 [pid 5929] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5929] setpgid(0, 0) = 0 [pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5929] write(3, "1000", 4) = 4 [pid 5929] close(3) = 0 [pid 5929] write(1, "executing program\n", 18executing program ) = 18 [pid 5929] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5929] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5929] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5929] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5929] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5929] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5929] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5930 attached => {parent_tid=[5930]}, 88) = 5930 [pid 5929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5929] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5929] <... futex resumed>) = 0 [pid 5929] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5930] <... rseq resumed>) = 0 [pid 5930] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5930] memfd_create("syzkaller", 0) = 3 [pid 5930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5930] 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"..., 16777216) = 16777216 [pid 5930] munmap(0x7f3be0600000, 138412032) = 0 [pid 5930] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5930] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5930] ioctl(4, LOOP_CLR_FD) = 0 [pid 5930] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5930] close(4) = 0 [pid 5930] close(3) = 0 [pid 5930] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5929] <... futex resumed>) = 0 [pid 5930] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] exit_group(0 [pid 5930] <... futex resumed>) = ? [pid 5929] <... exit_group resumed>) = ? [pid 5930] +++ exited with 0 +++ [pid 5929] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5929, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5931 attached , child_tidptr=0x55557b776690) = 5931 [pid 5931] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5931] setpgid(0, 0) = 0 [pid 5931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5931] write(3, "1000", 4) = 4 [pid 5931] close(3) = 0 executing program [pid 5931] write(1, "executing program\n", 18) = 18 [pid 5931] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5931] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5931] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5931] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5931] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5931] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5931] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5932 attached [pid 5932] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5931] <... clone3 resumed> => {parent_tid=[5932]}, 88) = 5932 [pid 5932] <... rseq resumed>) = 0 [pid 5931] rt_sigprocmask(SIG_SETMASK, [], [pid 5932] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5931] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5932] <... set_robust_list resumed>) = 0 [pid 5931] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5931] <... futex resumed>) = 0 [pid 5932] memfd_create("syzkaller", 0 [pid 5931] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5932] <... memfd_create resumed>) = 3 [pid 5932] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5932] 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"..., 16777216) = 16777216 [pid 5932] munmap(0x7f3be0600000, 138412032) = 0 [pid 5932] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5932] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5932] ioctl(4, LOOP_CLR_FD) = 0 [pid 5932] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5932] close(4) = 0 [pid 5932] close(3) = 0 [pid 5932] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5931] <... futex resumed>) = 0 [pid 5932] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5931] exit_group(0) = ? [pid 5932] <... futex resumed>) = ? [pid 5932] +++ exited with 0 +++ [pid 5931] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5931, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5933 attached , child_tidptr=0x55557b776690) = 5933 [pid 5933] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5933] setpgid(0, 0) = 0 [pid 5933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5933] write(3, "1000", 4) = 4 [pid 5933] close(3) = 0 executing program [pid 5933] write(1, "executing program\n", 18) = 18 [pid 5933] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5933] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5933] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5933] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5933] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5933] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5933] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5934 attached => {parent_tid=[5934]}, 88) = 5934 [pid 5933] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5934] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5933] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5934] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5933] <... futex resumed>) = 0 [pid 5934] <... set_robust_list resumed>) = 0 [pid 5934] rt_sigprocmask(SIG_SETMASK, [], [pid 5933] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5934] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5934] memfd_create("syzkaller", 0) = 3 [pid 5934] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5934] 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"..., 16777216) = 16777216 [pid 5934] munmap(0x7f3be0600000, 138412032) = 0 [pid 5934] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5934] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5934] ioctl(4, LOOP_CLR_FD) = 0 [pid 5934] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5934] close(4) = 0 [pid 5934] close(3) = 0 [pid 5934] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5934] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5933] <... futex resumed>) = 0 [pid 5933] exit_group(0 [pid 5934] <... futex resumed>) = ? [pid 5933] <... exit_group resumed>) = ? [pid 5934] +++ exited with 0 +++ [pid 5933] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5933, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- 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 5936 attached , child_tidptr=0x55557b776690) = 5936 [pid 5936] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5936] setpgid(0, 0) = 0 [pid 5936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5936] write(3, "1000", 4) = 4 [pid 5936] close(3) = 0 [pid 5936] write(1, "executing program\n", 18executing program ) = 18 [pid 5936] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5936] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5936] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5936] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5936] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5936] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5937 attached => {parent_tid=[5937]}, 88) = 5937 [pid 5936] rt_sigprocmask(SIG_SETMASK, [], [pid 5937] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5936] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5936] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5936] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5937] <... rseq resumed>) = 0 [pid 5937] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5937] memfd_create("syzkaller", 0) = 3 [pid 5937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5937] 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"..., 16777216) = 16777216 [pid 5937] munmap(0x7f3be0600000, 138412032) = 0 [pid 5937] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5937] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5937] ioctl(4, LOOP_CLR_FD) = 0 [pid 5937] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5937] close(4) = 0 [pid 5937] close(3) = 0 [pid 5937] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5936] <... futex resumed>) = 0 [pid 5937] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5936] exit_group(0 [pid 5937] <... futex resumed>) = ? [pid 5936] <... exit_group resumed>) = ? [pid 5937] +++ exited with 0 +++ [pid 5936] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5936, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 5938 attached , child_tidptr=0x55557b776690) = 5938 [pid 5938] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5938] setpgid(0, 0) = 0 [pid 5938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5938] write(3, "1000", 4) = 4 [pid 5938] close(3) = 0 [pid 5938] write(1, "executing program\n", 18executing program ) = 18 [pid 5938] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5938] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5938] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5938] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5938] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5938] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5939 attached [pid 5939] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5938] <... clone3 resumed> => {parent_tid=[5939]}, 88) = 5939 [pid 5939] <... rseq resumed>) = 0 [pid 5938] rt_sigprocmask(SIG_SETMASK, [], [pid 5939] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5938] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5939] <... set_robust_list resumed>) = 0 [pid 5938] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5938] <... futex resumed>) = 0 [pid 5939] memfd_create("syzkaller", 0 [pid 5938] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5939] <... memfd_create resumed>) = 3 [pid 5939] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5939] 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"..., 16777216) = 16777216 [pid 5939] munmap(0x7f3be0600000, 138412032) = 0 [pid 5939] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5939] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5939] ioctl(4, LOOP_CLR_FD) = 0 [pid 5939] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5939] close(4) = 0 [pid 5939] close(3) = 0 [pid 5939] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5938] <... futex resumed>) = 0 [pid 5939] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5938] exit_group(0 [pid 5939] <... futex resumed>) = ? [pid 5938] <... exit_group resumed>) = ? [pid 5939] +++ exited with 0 +++ [pid 5938] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5938, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5940 attached , child_tidptr=0x55557b776690) = 5940 [pid 5940] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5940] setpgid(0, 0) = 0 [pid 5940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5940] write(3, "1000", 4) = 4 [pid 5940] close(3) = 0 [pid 5940] write(1, "executing program\n", 18executing program ) = 18 [pid 5940] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5940] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5940] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5940] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5940] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5942 attached [pid 5942] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5940] <... clone3 resumed> => {parent_tid=[5942]}, 88) = 5942 [pid 5942] <... rseq resumed>) = 0 [pid 5940] rt_sigprocmask(SIG_SETMASK, [], [pid 5942] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5940] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5942] <... set_robust_list resumed>) = 0 [pid 5940] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] rt_sigprocmask(SIG_SETMASK, [], [pid 5940] <... futex resumed>) = 0 [pid 5942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5940] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5942] memfd_create("syzkaller", 0) = 3 [pid 5942] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5942] 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"..., 16777216) = 16777216 [pid 5942] munmap(0x7f3be0600000, 138412032) = 0 [pid 5942] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5942] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5942] ioctl(4, LOOP_CLR_FD) = 0 [pid 5942] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5942] close(4) = 0 [pid 5942] close(3) = 0 [pid 5942] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5942] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] exit_group(0) = ? [pid 5942] <... futex resumed>) = ? [pid 5942] +++ exited with 0 +++ [pid 5940] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5940, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5943 attached , child_tidptr=0x55557b776690) = 5943 [pid 5943] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5943] setpgid(0, 0) = 0 [pid 5943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5943] write(3, "1000", 4) = 4 [pid 5943] close(3) = 0 [pid 5943] write(1, "executing program\n", 18executing program ) = 18 [pid 5943] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5943] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5943] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5943] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5943] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5943] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5944 attached [pid 5944] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5943] <... clone3 resumed> => {parent_tid=[5944]}, 88) = 5944 [pid 5944] <... rseq resumed>) = 0 [pid 5943] rt_sigprocmask(SIG_SETMASK, [], [pid 5944] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5943] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5944] <... set_robust_list resumed>) = 0 [pid 5943] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5943] <... futex resumed>) = 0 [pid 5944] memfd_create("syzkaller", 0 [pid 5943] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5944] <... memfd_create resumed>) = 3 [pid 5944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5944] 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"..., 16777216) = 16777216 [pid 5944] munmap(0x7f3be0600000, 138412032) = 0 [pid 5944] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5944] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5944] ioctl(4, LOOP_CLR_FD) = 0 [pid 5944] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5944] close(4) = 0 [pid 5944] close(3) = 0 [pid 5944] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5943] <... futex resumed>) = 0 [pid 5943] exit_group(0 [pid 5944] <... futex resumed>) = ? [pid 5943] <... exit_group resumed>) = ? [pid 5944] +++ exited with 0 +++ [pid 5943] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5943, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5945 attached , child_tidptr=0x55557b776690) = 5945 [pid 5945] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5945] setpgid(0, 0) = 0 [pid 5945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5945] write(3, "1000", 4) = 4 [pid 5945] close(3) = 0 [pid 5945] write(1, "executing program\n", 18executing program ) = 18 [pid 5945] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5945] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5945] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5945] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5945] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5945] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5946 attached [pid 5946] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5946] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5946] rt_sigprocmask(SIG_SETMASK, [], [pid 5945] <... clone3 resumed> => {parent_tid=[5946]}, 88) = 5946 [pid 5946] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5945] rt_sigprocmask(SIG_SETMASK, [], [pid 5946] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5945] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5946] <... futex resumed>) = 0 [pid 5945] <... futex resumed>) = 1 [pid 5946] memfd_create("syzkaller", 0 [pid 5945] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5946] <... memfd_create resumed>) = 3 [pid 5946] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5946] 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"..., 16777216) = 16777216 [pid 5946] munmap(0x7f3be0600000, 138412032) = 0 [pid 5946] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5946] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5946] ioctl(4, LOOP_CLR_FD) = 0 [pid 5946] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5946] close(4) = 0 [pid 5946] close(3) = 0 [pid 5946] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5945] <... futex resumed>) = 0 [pid 5946] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] exit_group(0 [pid 5946] <... futex resumed>) = ? [pid 5945] <... exit_group resumed>) = ? [pid 5946] +++ exited with 0 +++ [pid 5945] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5945, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5947 attached , child_tidptr=0x55557b776690) = 5947 [pid 5947] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5947] setpgid(0, 0) = 0 [pid 5947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5947] write(3, "1000", 4) = 4 [pid 5947] close(3) = 0 [pid 5947] write(1, "executing program\n", 18executing program ) = 18 [pid 5947] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5947] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5947] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5947] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5947] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5947] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5947] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5948 attached [pid 5948] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5947] <... clone3 resumed> => {parent_tid=[5948]}, 88) = 5948 [pid 5948] <... rseq resumed>) = 0 [pid 5947] rt_sigprocmask(SIG_SETMASK, [], [pid 5948] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5947] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5948] <... set_robust_list resumed>) = 0 [pid 5947] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] rt_sigprocmask(SIG_SETMASK, [], [pid 5947] <... futex resumed>) = 0 [pid 5948] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5947] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5948] memfd_create("syzkaller", 0) = 3 [pid 5948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5948] 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"..., 16777216) = 16777216 [pid 5948] munmap(0x7f3be0600000, 138412032) = 0 [pid 5948] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5948] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5948] ioctl(4, LOOP_CLR_FD) = 0 [pid 5948] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5948] close(4) = 0 [pid 5948] close(3) = 0 [pid 5948] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5947] <... futex resumed>) = 0 [pid 5948] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5947] exit_group(0) = ? [pid 5948] <... futex resumed>) = ? [pid 5948] +++ exited with 0 +++ [pid 5947] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5947, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5949 attached , child_tidptr=0x55557b776690) = 5949 [pid 5949] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5949] setpgid(0, 0) = 0 [pid 5949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5949] write(3, "1000", 4) = 4 [pid 5949] close(3) = 0 [pid 5949] write(1, "executing program\n", 18executing program ) = 18 [pid 5949] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5949] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5949] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5949] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5949] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5949] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5950 attached [pid 5950] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5949] <... clone3 resumed> => {parent_tid=[5950]}, 88) = 5950 [pid 5950] <... rseq resumed>) = 0 [pid 5949] rt_sigprocmask(SIG_SETMASK, [], [pid 5950] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5949] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5950] <... set_robust_list resumed>) = 0 [pid 5949] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5949] <... futex resumed>) = 0 [pid 5950] memfd_create("syzkaller", 0 [pid 5949] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5950] <... memfd_create resumed>) = 3 [pid 5950] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5950] 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"..., 16777216) = 16777216 [pid 5950] munmap(0x7f3be0600000, 138412032) = 0 [pid 5950] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5950] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5950] ioctl(4, LOOP_CLR_FD) = 0 [pid 5950] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5950] close(4) = 0 [pid 5950] close(3) = 0 [pid 5950] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5949] <... futex resumed>) = 0 [pid 5950] <... futex resumed>) = 1 [pid 5949] exit_group(0 [pid 5950] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5949] <... exit_group resumed>) = ? [pid 5950] +++ exited with 0 +++ [pid 5949] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5949, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5951 attached , child_tidptr=0x55557b776690) = 5951 [pid 5951] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5951] setpgid(0, 0) = 0 [pid 5951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5951] write(3, "1000", 4) = 4 [pid 5951] close(3) = 0 [pid 5951] write(1, "executing program\n", 18executing program ) = 18 [pid 5951] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5951] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5951] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5951] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5951] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5951] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5951] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5952 attached => {parent_tid=[5952]}, 88) = 5952 [pid 5951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5952] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5951] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5952] <... rseq resumed>) = 0 [pid 5952] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5951] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5952] <... set_robust_list resumed>) = 0 [pid 5952] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5952] memfd_create("syzkaller", 0) = 3 [pid 5952] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5952] 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"..., 16777216) = 16777216 [pid 5952] munmap(0x7f3be0600000, 138412032) = 0 [pid 5952] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5952] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5952] ioctl(4, LOOP_CLR_FD) = 0 [pid 5952] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5952] close(4) = 0 [pid 5952] close(3) = 0 [pid 5952] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5952] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5951] <... futex resumed>) = 0 [pid 5951] exit_group(0) = ? [pid 5952] <... futex resumed>) = ? [pid 5952] +++ exited with 0 +++ [pid 5951] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5951, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5953 attached , child_tidptr=0x55557b776690) = 5953 [pid 5953] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5953] setpgid(0, 0) = 0 [pid 5953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5953] write(3, "1000", 4) = 4 [pid 5953] close(3) = 0 [pid 5953] write(1, "executing program\n", 18executing program ) = 18 [pid 5953] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5953] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5953] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5953] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5953] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5954 attached [pid 5954] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5953] <... clone3 resumed> => {parent_tid=[5954]}, 88) = 5954 [pid 5954] <... rseq resumed>) = 0 [pid 5953] rt_sigprocmask(SIG_SETMASK, [], [pid 5954] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5953] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5954] <... set_robust_list resumed>) = 0 [pid 5953] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] rt_sigprocmask(SIG_SETMASK, [], [pid 5953] <... futex resumed>) = 0 [pid 5954] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5953] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5954] memfd_create("syzkaller", 0) = 3 [pid 5954] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5954] 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"..., 16777216) = 16777216 [pid 5954] munmap(0x7f3be0600000, 138412032) = 0 [pid 5954] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5954] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5954] ioctl(4, LOOP_CLR_FD) = 0 [pid 5954] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5954] close(4) = 0 [pid 5954] close(3) = 0 [pid 5954] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5953] <... futex resumed>) = 0 [pid 5953] exit_group(0 [pid 5954] <... futex resumed>) = ? [pid 5953] <... exit_group resumed>) = ? [pid 5954] +++ exited with 0 +++ [pid 5953] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5953, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5955 attached , child_tidptr=0x55557b776690) = 5955 [pid 5955] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5955] setpgid(0, 0) = 0 [pid 5955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5955] write(3, "1000", 4) = 4 [pid 5955] close(3) = 0 executing program [pid 5955] write(1, "executing program\n", 18) = 18 [pid 5955] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5955] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5955] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5955] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5955] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5955] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5956 attached => {parent_tid=[5956]}, 88) = 5956 [pid 5955] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5956] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5955] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5956] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5955] <... futex resumed>) = 0 [pid 5956] <... set_robust_list resumed>) = 0 [pid 5956] rt_sigprocmask(SIG_SETMASK, [], [pid 5955] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5956] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5956] memfd_create("syzkaller", 0) = 3 [pid 5956] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5956] 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"..., 16777216) = 16777216 [pid 5956] munmap(0x7f3be0600000, 138412032) = 0 [pid 5956] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5956] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5956] ioctl(4, LOOP_CLR_FD) = 0 [pid 5956] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5956] close(4) = 0 [pid 5956] close(3) = 0 [pid 5956] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5956] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5955] <... futex resumed>) = 0 [pid 5955] exit_group(0) = ? [pid 5956] <... futex resumed>) = ? [pid 5956] +++ exited with 0 +++ [pid 5955] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5955, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5957 attached , child_tidptr=0x55557b776690) = 5957 [pid 5957] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5957] setpgid(0, 0) = 0 [pid 5957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5957] write(3, "1000", 4) = 4 [pid 5957] close(3) = 0 executing program [pid 5957] write(1, "executing program\n", 18) = 18 [pid 5957] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5957] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5957] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5957] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5957] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5957] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5958 attached => {parent_tid=[5958]}, 88) = 5958 [pid 5957] rt_sigprocmask(SIG_SETMASK, [], [pid 5958] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5957] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5958] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5957] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] <... set_robust_list resumed>) = 0 [pid 5958] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5958] memfd_create("syzkaller", 0) = 3 [pid 5957] <... futex resumed>) = 0 [pid 5958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5957] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5958] <... mmap resumed>) = 0x7f3be0600000 [pid 5958] 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"..., 16777216) = 16777216 [pid 5958] munmap(0x7f3be0600000, 138412032) = 0 [pid 5958] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5958] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5958] ioctl(4, LOOP_CLR_FD) = 0 [pid 5958] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5958] close(4) = 0 [pid 5958] close(3) = 0 [pid 5958] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5958] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] <... futex resumed>) = 0 [pid 5957] exit_group(0 [pid 5958] <... futex resumed>) = ? [pid 5957] <... exit_group resumed>) = ? [pid 5958] +++ exited with 0 +++ [pid 5957] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5957, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5959 attached , child_tidptr=0x55557b776690) = 5959 [pid 5959] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5959] setpgid(0, 0) = 0 [pid 5959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5959] write(3, "1000", 4) = 4 [pid 5959] close(3) = 0 executing program [pid 5959] write(1, "executing program\n", 18) = 18 [pid 5959] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5959] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5959] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5959] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5959] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5959] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5960 attached => {parent_tid=[5960]}, 88) = 5960 [pid 5960] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5960] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5960] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5960] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5959] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5960] memfd_create("syzkaller", 0 [pid 5959] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5960] <... memfd_create resumed>) = 3 [pid 5960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5960] 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"..., 16777216) = 16777216 [pid 5960] munmap(0x7f3be0600000, 138412032) = 0 [pid 5960] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5960] ioctl(4, LOOP_CLR_FD) = 0 [pid 5960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5960] close(4) = 0 [pid 5960] close(3) = 0 [pid 5960] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5960] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] <... futex resumed>) = 0 [pid 5959] exit_group(0) = ? [pid 5960] <... futex resumed>) = ? [pid 5960] +++ exited with 0 +++ [pid 5959] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5959, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5961 attached , child_tidptr=0x55557b776690) = 5961 [pid 5961] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5961] setpgid(0, 0) = 0 [pid 5961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5961] write(3, "1000", 4) = 4 [pid 5961] close(3) = 0 executing program [pid 5961] write(1, "executing program\n", 18) = 18 [pid 5961] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5961] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5961] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5961] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5961] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5961] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5961] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5962 attached [pid 5962] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5961] <... clone3 resumed> => {parent_tid=[5962]}, 88) = 5962 [pid 5962] <... rseq resumed>) = 0 [pid 5961] rt_sigprocmask(SIG_SETMASK, [], [pid 5962] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5961] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5962] <... set_robust_list resumed>) = 0 [pid 5961] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5961] <... futex resumed>) = 0 [pid 5962] memfd_create("syzkaller", 0 [pid 5961] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5962] <... memfd_create resumed>) = 3 [pid 5962] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5962] 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"..., 16777216) = 16777216 [pid 5962] munmap(0x7f3be0600000, 138412032) = 0 [pid 5962] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5962] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5962] ioctl(4, LOOP_CLR_FD) = 0 [pid 5962] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5962] close(4) = 0 [pid 5962] close(3) = 0 [pid 5962] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5961] <... futex resumed>) = 0 [pid 5962] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5961] exit_group(0 [pid 5962] <... futex resumed>) = ? [pid 5962] +++ exited with 0 +++ [pid 5961] <... exit_group resumed>) = ? [pid 5961] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5961, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5963 attached , child_tidptr=0x55557b776690) = 5963 [pid 5963] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5963] setpgid(0, 0) = 0 [pid 5963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5963] write(3, "1000", 4) = 4 [pid 5963] close(3) = 0 [pid 5963] write(1, "executing program\n", 18) = 18 executing program [pid 5963] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5963] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5963] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5963] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5963] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5963] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5963] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5964 attached [pid 5964] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5963] <... clone3 resumed> => {parent_tid=[5964]}, 88) = 5964 [pid 5964] <... rseq resumed>) = 0 [pid 5964] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5963] rt_sigprocmask(SIG_SETMASK, [], [pid 5964] <... set_robust_list resumed>) = 0 [pid 5963] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5964] rt_sigprocmask(SIG_SETMASK, [], [pid 5963] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5964] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5963] <... futex resumed>) = 0 [pid 5964] memfd_create("syzkaller", 0 [pid 5963] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5964] <... memfd_create resumed>) = 3 [pid 5964] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5964] 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"..., 16777216) = 16777216 [pid 5964] munmap(0x7f3be0600000, 138412032) = 0 [pid 5964] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5964] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5964] ioctl(4, LOOP_CLR_FD) = 0 [pid 5964] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5964] close(4) = 0 [pid 5964] close(3) = 0 [pid 5964] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... futex resumed>) = 0 [pid 5964] <... futex resumed>) = 1 [pid 5963] exit_group(0 [pid 5964] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5963] <... exit_group resumed>) = ? [pid 5964] +++ exited with 0 +++ [pid 5963] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5963, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5965 attached , child_tidptr=0x55557b776690) = 5965 [pid 5965] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5965] setpgid(0, 0) = 0 [pid 5965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5965] write(3, "1000", 4) = 4 [pid 5965] close(3) = 0 [pid 5965] write(1, "executing program\n", 18executing program ) = 18 [pid 5965] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5965] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5965] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5965] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5965] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5965] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5966 attached [pid 5966] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5965] <... clone3 resumed> => {parent_tid=[5966]}, 88) = 5966 [pid 5966] <... rseq resumed>) = 0 [pid 5966] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5965] rt_sigprocmask(SIG_SETMASK, [], [pid 5966] <... set_robust_list resumed>) = 0 [pid 5965] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5966] rt_sigprocmask(SIG_SETMASK, [], [pid 5965] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5966] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5965] <... futex resumed>) = 0 [pid 5966] memfd_create("syzkaller", 0 [pid 5965] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5966] <... memfd_create resumed>) = 3 [pid 5966] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5966] 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"..., 16777216) = 16777216 [pid 5966] munmap(0x7f3be0600000, 138412032) = 0 [pid 5966] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5966] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5966] ioctl(4, LOOP_CLR_FD) = 0 [pid 5966] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5966] close(4) = 0 [pid 5966] close(3) = 0 [pid 5966] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] <... futex resumed>) = 0 [pid 5965] exit_group(0) = ? [pid 5966] <... futex resumed>) = ? [pid 5966] +++ exited with 0 +++ [pid 5965] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5965, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5967 attached , child_tidptr=0x55557b776690) = 5967 [pid 5967] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5967] setpgid(0, 0) = 0 [pid 5967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5967] write(3, "1000", 4) = 4 [pid 5967] close(3) = 0 [pid 5967] write(1, "executing program\n", 18executing program ) = 18 [pid 5967] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5967] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5967] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5967] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5967] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5967] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5968 attached [pid 5968] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5967] <... clone3 resumed> => {parent_tid=[5968]}, 88) = 5968 [pid 5968] <... rseq resumed>) = 0 [pid 5968] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5967] rt_sigprocmask(SIG_SETMASK, [], [pid 5968] <... set_robust_list resumed>) = 0 [pid 5967] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5968] rt_sigprocmask(SIG_SETMASK, [], [pid 5967] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5967] <... futex resumed>) = 0 [pid 5968] memfd_create("syzkaller", 0 [pid 5967] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5968] <... memfd_create resumed>) = 3 [pid 5968] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5968] 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"..., 16777216) = 16777216 [pid 5968] munmap(0x7f3be0600000, 138412032) = 0 [pid 5968] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5968] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5968] ioctl(4, LOOP_CLR_FD) = 0 [pid 5968] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5968] close(4) = 0 [pid 5968] close(3) = 0 [pid 5968] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5967] <... futex resumed>) = 0 [pid 5967] exit_group(0) = ? [pid 5968] <... futex resumed>) = ? [pid 5968] +++ exited with 0 +++ [pid 5967] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5967, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5969 attached , child_tidptr=0x55557b776690) = 5969 [pid 5969] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5969] setpgid(0, 0) = 0 [pid 5969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5969] write(3, "1000", 4) = 4 [pid 5969] close(3) = 0 [pid 5969] write(1, "executing program\n", 18executing program ) = 18 [pid 5969] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5969] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5969] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5969] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5969] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5969] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5970 attached [pid 5970] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5970] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5970] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5969] <... clone3 resumed> => {parent_tid=[5970]}, 88) = 5970 [pid 5970] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5969] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5970] <... futex resumed>) = 0 [pid 5969] <... futex resumed>) = 1 [pid 5970] memfd_create("syzkaller", 0 [pid 5969] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5970] <... memfd_create resumed>) = 3 [pid 5970] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5970] 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"..., 16777216) = 16777216 [pid 5970] munmap(0x7f3be0600000, 138412032) = 0 [pid 5970] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5970] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5970] ioctl(4, LOOP_CLR_FD) = 0 [pid 5970] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5970] close(4) = 0 [pid 5970] close(3) = 0 [pid 5970] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5970] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] <... futex resumed>) = 0 [pid 5969] exit_group(0) = ? [pid 5970] <... futex resumed>) = ? [pid 5970] +++ exited with 0 +++ [pid 5969] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5969, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5971 attached , child_tidptr=0x55557b776690) = 5971 [pid 5971] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5971] setpgid(0, 0) = 0 [pid 5971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5971] write(3, "1000", 4) = 4 [pid 5971] close(3) = 0 [pid 5971] write(1, "executing program\n", 18) = 18 executing program [pid 5971] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5971] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5971] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5971] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5971] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5971] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5972 attached [pid 5972] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5971] <... clone3 resumed> => {parent_tid=[5972]}, 88) = 5972 [pid 5972] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5971] rt_sigprocmask(SIG_SETMASK, [], [pid 5972] <... set_robust_list resumed>) = 0 [pid 5971] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5972] rt_sigprocmask(SIG_SETMASK, [], [pid 5971] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5972] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5972] memfd_create("syzkaller", 0 [pid 5971] <... futex resumed>) = 0 [pid 5971] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5972] <... memfd_create resumed>) = 3 [pid 5972] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5972] 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"..., 16777216) = 16777216 [pid 5972] munmap(0x7f3be0600000, 138412032) = 0 [pid 5972] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5972] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5972] ioctl(4, LOOP_CLR_FD) = 0 [pid 5972] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5972] close(4) = 0 [pid 5972] close(3) = 0 [pid 5972] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5971] <... futex resumed>) = 0 [pid 5972] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5971] exit_group(0) = ? [pid 5972] <... futex resumed>) = ? [pid 5972] +++ exited with 0 +++ [pid 5971] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5971, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 5973 attached , child_tidptr=0x55557b776690) = 5973 [pid 5973] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5973] setpgid(0, 0) = 0 [pid 5973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5973] write(3, "1000", 4) = 4 [pid 5973] close(3) = 0 [pid 5973] write(1, "executing program\n", 18executing program ) = 18 [pid 5973] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5973] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5973] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5973] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5973] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5973] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5974 attached => {parent_tid=[5974]}, 88) = 5974 [pid 5974] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5973] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5973] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5974] <... rseq resumed>) = 0 [pid 5974] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5974] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5974] memfd_create("syzkaller", 0) = 3 [pid 5974] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5974] 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"..., 16777216) = 16777216 [pid 5974] munmap(0x7f3be0600000, 138412032) = 0 [pid 5974] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5974] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5974] ioctl(4, LOOP_CLR_FD) = 0 [pid 5974] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5974] close(4) = 0 [pid 5974] close(3) = 0 [pid 5974] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5973] <... futex resumed>) = 0 [pid 5973] exit_group(0 [pid 5974] <... futex resumed>) = ? [pid 5973] <... exit_group resumed>) = ? [pid 5974] +++ exited with 0 +++ [pid 5973] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5973, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5975 attached , child_tidptr=0x55557b776690) = 5975 [pid 5975] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5975] setpgid(0, 0) = 0 [pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5975] write(3, "1000", 4) = 4 [pid 5975] close(3) = 0 [pid 5975] write(1, "executing program\n", 18executing program ) = 18 [pid 5975] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5975] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5975] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5975] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5975] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5975] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5975] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5976 attached => {parent_tid=[5976]}, 88) = 5976 [pid 5975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5975] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5976] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5976] memfd_create("syzkaller", 0) = 3 [pid 5976] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5975] <... futex resumed>) = 0 [pid 5975] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5976] 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"..., 16777216) = 16777216 [pid 5976] munmap(0x7f3be0600000, 138412032) = 0 [pid 5976] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5976] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5976] ioctl(4, LOOP_CLR_FD) = 0 [pid 5976] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5976] close(4) = 0 [pid 5976] close(3) = 0 [pid 5976] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5975] <... futex resumed>) = 0 [pid 5976] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5975] exit_group(0 [pid 5976] <... futex resumed>) = ? [pid 5975] <... exit_group resumed>) = ? [pid 5976] +++ exited with 0 +++ [pid 5975] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5975, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 5977 attached , child_tidptr=0x55557b776690) = 5977 [pid 5977] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5977] setpgid(0, 0) = 0 [pid 5977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5977] write(3, "1000", 4) = 4 [pid 5977] close(3) = 0 [pid 5977] write(1, "executing program\n", 18executing program ) = 18 [pid 5977] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5977] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5977] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5977] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5977] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5978 attached [pid 5978] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5977] <... clone3 resumed> => {parent_tid=[5978]}, 88) = 5978 [pid 5978] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5977] rt_sigprocmask(SIG_SETMASK, [], [pid 5978] <... set_robust_list resumed>) = 0 [pid 5977] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5978] rt_sigprocmask(SIG_SETMASK, [], [pid 5977] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5978] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5978] memfd_create("syzkaller", 0 [pid 5977] <... futex resumed>) = 0 [pid 5977] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5978] <... memfd_create resumed>) = 3 [pid 5978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5978] 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"..., 16777216) = 16777216 [pid 5978] munmap(0x7f3be0600000, 138412032) = 0 [pid 5978] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5978] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5978] ioctl(4, LOOP_CLR_FD) = 0 [pid 5978] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5978] close(4) = 0 [pid 5978] close(3) = 0 [pid 5978] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... futex resumed>) = 0 [pid 5978] <... futex resumed>) = 1 [pid 5977] exit_group(0 [pid 5978] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5977] <... exit_group resumed>) = ? [pid 5978] +++ exited with 0 +++ [pid 5977] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5977, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5979 attached , child_tidptr=0x55557b776690) = 5979 [pid 5979] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5979] setpgid(0, 0) = 0 [pid 5979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5979] write(3, "1000", 4) = 4 [pid 5979] close(3) = 0 [pid 5979] write(1, "executing program\n", 18executing program ) = 18 [pid 5979] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5979] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5979] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5979] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5979] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5979] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5980 attached => {parent_tid=[5980]}, 88) = 5980 [pid 5980] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5980] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5980] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5979] rt_sigprocmask(SIG_SETMASK, [], [pid 5980] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5979] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5979] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5980] <... futex resumed>) = 0 [pid 5979] <... futex resumed>) = 1 [pid 5979] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5980] memfd_create("syzkaller", 0) = 3 [pid 5980] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5980] 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"..., 16777216) = 16777216 [pid 5980] munmap(0x7f3be0600000, 138412032) = 0 [pid 5980] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5980] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5980] ioctl(4, LOOP_CLR_FD) = 0 [pid 5980] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5980] close(4) = 0 [pid 5980] close(3) = 0 [pid 5980] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5980] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5979] <... futex resumed>) = 0 [pid 5979] exit_group(0 [pid 5980] <... futex resumed>) = ? [pid 5979] <... exit_group resumed>) = ? [pid 5980] +++ exited with 0 +++ [pid 5979] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5979, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 5981 attached , child_tidptr=0x55557b776690) = 5981 [pid 5981] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5981] setpgid(0, 0) = 0 [pid 5981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5981] write(3, "1000", 4) = 4 [pid 5981] close(3) = 0 [pid 5981] write(1, "executing program\n", 18executing program ) = 18 [pid 5981] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5981] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5981] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5981] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5981] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5981] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5981] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5982 attached => {parent_tid=[5982]}, 88) = 5982 [pid 5981] rt_sigprocmask(SIG_SETMASK, [], [pid 5982] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5981] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5982] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5981] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] <... set_robust_list resumed>) = 0 [pid 5981] <... futex resumed>) = 0 [pid 5982] rt_sigprocmask(SIG_SETMASK, [], [pid 5981] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5982] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5982] memfd_create("syzkaller", 0) = 3 [pid 5982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5982] 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"..., 16777216) = 16777216 [pid 5982] munmap(0x7f3be0600000, 138412032) = 0 [pid 5982] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5982] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5982] ioctl(4, LOOP_CLR_FD) = 0 [pid 5982] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5982] close(4) = 0 [pid 5982] close(3) = 0 [pid 5982] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5982] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5981] <... futex resumed>) = 0 [pid 5981] exit_group(0 [pid 5982] <... futex resumed>) = ? [pid 5981] <... exit_group resumed>) = ? [pid 5982] +++ exited with 0 +++ [pid 5981] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5981, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 5983 attached , child_tidptr=0x55557b776690) = 5983 [pid 5983] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5983] setpgid(0, 0) = 0 [pid 5983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5983] write(3, "1000", 4) = 4 [pid 5983] close(3) = 0 [pid 5983] write(1, "executing program\n", 18executing program ) = 18 [pid 5983] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5983] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5983] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5983] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5983] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5983] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5984 attached [pid 5984] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5983] <... clone3 resumed> => {parent_tid=[5984]}, 88) = 5984 [pid 5984] <... rseq resumed>) = 0 [pid 5983] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5984] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5983] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5984] <... set_robust_list resumed>) = 0 [pid 5984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5983] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5984] memfd_create("syzkaller", 0) = 3 [pid 5984] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5984] 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"..., 16777216) = 16777216 [pid 5984] munmap(0x7f3be0600000, 138412032) = 0 [pid 5984] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5984] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5984] ioctl(4, LOOP_CLR_FD) = 0 [pid 5984] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5984] close(4) = 0 [pid 5984] close(3) = 0 [pid 5984] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... futex resumed>) = 0 [pid 5983] exit_group(0) = ? [pid 5984] <... futex resumed>) = ? [pid 5984] +++ exited with 0 +++ [pid 5983] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5983, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 5985 attached , child_tidptr=0x55557b776690) = 5985 [pid 5985] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5985] setpgid(0, 0) = 0 [pid 5985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5985] write(3, "1000", 4) = 4 [pid 5985] close(3) = 0 [pid 5985] write(1, "executing program\n", 18executing program ) = 18 [pid 5985] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5985] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5985] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5985] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5985] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5985] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5986 attached => {parent_tid=[5986]}, 88) = 5986 [pid 5985] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5985] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5986] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5985] <... futex resumed>) = 0 [pid 5986] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5985] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5986] <... set_robust_list resumed>) = 0 [pid 5986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5986] memfd_create("syzkaller", 0) = 3 [pid 5986] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5986] 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"..., 16777216) = 16777216 [pid 5986] munmap(0x7f3be0600000, 138412032) = 0 [pid 5986] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5986] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5986] ioctl(4, LOOP_CLR_FD) = 0 [pid 5986] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5986] close(4) = 0 [pid 5986] close(3) = 0 [pid 5986] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5985] <... futex resumed>) = 0 [pid 5986] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5985] exit_group(0 [pid 5986] <... futex resumed>) = ? [pid 5985] <... exit_group resumed>) = ? [pid 5986] +++ exited with 0 +++ [pid 5985] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5985, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 5987 attached , child_tidptr=0x55557b776690) = 5987 [pid 5987] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5987] setpgid(0, 0) = 0 [pid 5987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5987] write(3, "1000", 4) = 4 [pid 5987] close(3) = 0 [pid 5987] write(1, "executing program\n", 18executing program ) = 18 [pid 5987] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5987] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5987] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5987] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5987] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5987] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5988 attached => {parent_tid=[5988]}, 88) = 5988 [pid 5988] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5988] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5988] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5987] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5988] <... futex resumed>) = 0 [pid 5987] <... futex resumed>) = 1 [pid 5988] memfd_create("syzkaller", 0 [pid 5987] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5988] <... memfd_create resumed>) = 3 [pid 5988] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5988] 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"..., 16777216) = 16777216 [pid 5988] munmap(0x7f3be0600000, 138412032) = 0 [pid 5988] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5988] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5988] ioctl(4, LOOP_CLR_FD) = 0 [pid 5988] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5988] close(4) = 0 [pid 5988] close(3) = 0 [pid 5988] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5987] <... futex resumed>) = 0 [pid 5988] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5987] exit_group(0 [pid 5988] <... futex resumed>) = ? [pid 5987] <... exit_group resumed>) = ? [pid 5988] +++ exited with 0 +++ [pid 5987] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5987, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5989 attached , child_tidptr=0x55557b776690) = 5989 [pid 5989] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5989] setpgid(0, 0) = 0 [pid 5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5989] write(3, "1000", 4) = 4 [pid 5989] close(3) = 0 [pid 5989] write(1, "executing program\n", 18executing program ) = 18 [pid 5989] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5989] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5989] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5989] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5989] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5990 attached [pid 5990] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5989] <... clone3 resumed> => {parent_tid=[5990]}, 88) = 5990 [pid 5990] <... rseq resumed>) = 0 [pid 5990] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5989] rt_sigprocmask(SIG_SETMASK, [], [pid 5990] <... set_robust_list resumed>) = 0 [pid 5989] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5990] rt_sigprocmask(SIG_SETMASK, [], [pid 5989] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5989] <... futex resumed>) = 0 [pid 5990] memfd_create("syzkaller", 0 [pid 5989] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5990] <... memfd_create resumed>) = 3 [pid 5990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5990] 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"..., 16777216) = 16777216 [pid 5990] munmap(0x7f3be0600000, 138412032) = 0 [pid 5990] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5990] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5990] ioctl(4, LOOP_CLR_FD) = 0 [pid 5990] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5990] close(4) = 0 [pid 5990] close(3) = 0 [pid 5990] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5990] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5989] <... futex resumed>) = 0 [pid 5989] exit_group(0) = ? [pid 5990] <... futex resumed>) = ? [pid 5990] +++ exited with 0 +++ [pid 5989] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5989, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 5991 attached , child_tidptr=0x55557b776690) = 5991 [pid 5991] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5991] setpgid(0, 0) = 0 [pid 5991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5991] write(3, "1000", 4) = 4 [pid 5991] close(3) = 0 [pid 5991] write(1, "executing program\n", 18executing program ) = 18 [pid 5991] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5991] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5991] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5991] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5991] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5991] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5992 attached [pid 5992] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5992] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5992] rt_sigprocmask(SIG_SETMASK, [], [pid 5991] <... clone3 resumed> => {parent_tid=[5992]}, 88) = 5992 [pid 5992] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5991] rt_sigprocmask(SIG_SETMASK, [], [pid 5992] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5991] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5991] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5992] <... futex resumed>) = 0 [pid 5992] memfd_create("syzkaller", 0 [pid 5991] <... futex resumed>) = 1 [pid 5991] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5992] <... memfd_create resumed>) = 3 [pid 5992] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5992] 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"..., 16777216) = 16777216 [pid 5992] munmap(0x7f3be0600000, 138412032) = 0 [pid 5992] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5992] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5992] ioctl(4, LOOP_CLR_FD) = 0 [pid 5992] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5992] close(4) = 0 [pid 5992] close(3) = 0 [pid 5992] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5991] <... futex resumed>) = 0 [pid 5992] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5991] exit_group(0 [pid 5992] <... futex resumed>) = ? [pid 5991] <... exit_group resumed>) = ? [pid 5992] +++ exited with 0 +++ [pid 5991] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5991, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 5993 attached , child_tidptr=0x55557b776690) = 5993 [pid 5993] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5993] setpgid(0, 0) = 0 [pid 5993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5993] write(3, "1000", 4) = 4 [pid 5993] close(3) = 0 [pid 5993] write(1, "executing program\n", 18executing program ) = 18 [pid 5993] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5993] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5993] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5993] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5993] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5993] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5994 attached [pid 5994] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5993] <... clone3 resumed> => {parent_tid=[5994]}, 88) = 5994 [pid 5994] <... rseq resumed>) = 0 [pid 5993] rt_sigprocmask(SIG_SETMASK, [], [pid 5994] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5993] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5994] <... set_robust_list resumed>) = 0 [pid 5993] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5993] <... futex resumed>) = 0 [pid 5993] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5994] memfd_create("syzkaller", 0) = 3 [pid 5994] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5994] 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"..., 16777216) = 16777216 [pid 5994] munmap(0x7f3be0600000, 138412032) = 0 [pid 5994] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5994] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5994] ioctl(4, LOOP_CLR_FD) = 0 [pid 5994] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5994] close(4) = 0 [pid 5994] close(3) = 0 [pid 5994] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5994] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] <... futex resumed>) = 0 [pid 5993] exit_group(0 [pid 5994] <... futex resumed>) = ? [pid 5993] <... exit_group resumed>) = ? [pid 5994] +++ exited with 0 +++ [pid 5993] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5993, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 5995 attached , child_tidptr=0x55557b776690) = 5995 [pid 5995] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5995] setpgid(0, 0) = 0 [pid 5995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5995] write(3, "1000", 4) = 4 [pid 5995] close(3) = 0 [pid 5995] write(1, "executing program\n", 18executing program ) = 18 [pid 5995] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5995] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5995] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5995] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5995] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5995] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5996 attached => {parent_tid=[5996]}, 88) = 5996 [pid 5995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5995] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5996] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 5996] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5995] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5996] <... set_robust_list resumed>) = 0 [pid 5996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5996] memfd_create("syzkaller", 0) = 3 [pid 5996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5996] 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"..., 16777216) = 16777216 [pid 5996] munmap(0x7f3be0600000, 138412032) = 0 [pid 5996] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5996] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5996] ioctl(4, LOOP_CLR_FD) = 0 [pid 5996] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5996] close(4) = 0 [pid 5996] close(3) = 0 [pid 5996] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5995] <... futex resumed>) = 0 [pid 5996] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5995] exit_group(0 [pid 5996] <... futex resumed>) = ? [pid 5996] +++ exited with 0 +++ [pid 5995] <... exit_group resumed>) = ? [pid 5995] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5995, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 5997 attached , child_tidptr=0x55557b776690) = 5997 [pid 5997] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5997] setpgid(0, 0) = 0 [pid 5997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5997] write(3, "1000", 4) = 4 [pid 5997] close(3) = 0 [pid 5997] write(1, "executing program\n", 18executing program ) = 18 [pid 5997] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5997] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5997] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5997] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5997] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 5998 attached => {parent_tid=[5998]}, 88) = 5998 [pid 5997] rt_sigprocmask(SIG_SETMASK, [], [pid 5998] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5997] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5997] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5997] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5998] <... rseq resumed>) = 0 [pid 5998] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 5998] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5998] memfd_create("syzkaller", 0) = 3 [pid 5998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 5998] 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"..., 16777216) = 16777216 [pid 5998] munmap(0x7f3be0600000, 138412032) = 0 [pid 5998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5998] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5998] ioctl(4, LOOP_CLR_FD) = 0 [pid 5998] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5998] close(4) = 0 [pid 5998] close(3) = 0 [pid 5998] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5998] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] <... futex resumed>) = 0 [pid 5997] exit_group(0 [pid 5998] <... futex resumed>) = ? [pid 5997] <... exit_group resumed>) = ? [pid 5998] +++ exited with 0 +++ [pid 5997] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5997, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 5999 attached , child_tidptr=0x55557b776690) = 5999 [pid 5999] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5999] setpgid(0, 0) = 0 [pid 5999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5999] write(3, "1000", 4) = 4 [pid 5999] close(3) = 0 executing program [pid 5999] write(1, "executing program\n", 18) = 18 [pid 5999] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5999] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 5999] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 5999] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5999] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5999] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6000 attached [pid 6000] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 5999] <... clone3 resumed> => {parent_tid=[6000]}, 88) = 6000 [pid 6000] <... rseq resumed>) = 0 [pid 5999] rt_sigprocmask(SIG_SETMASK, [], [pid 6000] set_robust_list(0x7f3be8b6f9a0, 24 [pid 5999] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6000] <... set_robust_list resumed>) = 0 [pid 5999] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6000] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5999] <... futex resumed>) = 0 [pid 6000] memfd_create("syzkaller", 0 [pid 5999] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6000] <... memfd_create resumed>) = 3 [pid 6000] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6000] 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"..., 16777216) = 16777216 [pid 6000] munmap(0x7f3be0600000, 138412032) = 0 [pid 6000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6000] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6000] ioctl(4, LOOP_CLR_FD) = 0 [pid 6000] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6000] close(4) = 0 [pid 6000] close(3) = 0 [pid 6000] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5999] <... futex resumed>) = 0 [pid 5999] exit_group(0 [pid 6000] <... futex resumed>) = ? [pid 5999] <... exit_group resumed>) = ? [pid 6000] +++ exited with 0 +++ [pid 5999] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5999, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6001 attached , child_tidptr=0x55557b776690) = 6001 [pid 6001] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6001] setpgid(0, 0) = 0 [pid 6001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6001] write(3, "1000", 4) = 4 executing program [pid 6001] close(3) = 0 [pid 6001] write(1, "executing program\n", 18) = 18 [pid 6001] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6001] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6001] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6001] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6001] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6001] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6002 attached [pid 6002] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6001] <... clone3 resumed> => {parent_tid=[6002]}, 88) = 6002 [pid 6002] <... rseq resumed>) = 0 [pid 6001] rt_sigprocmask(SIG_SETMASK, [], [pid 6002] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6001] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6002] <... set_robust_list resumed>) = 0 [pid 6001] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6002] rt_sigprocmask(SIG_SETMASK, [], [pid 6001] <... futex resumed>) = 0 [pid 6002] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6001] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6002] memfd_create("syzkaller", 0) = 3 [pid 6002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6002] 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"..., 16777216) = 16777216 [pid 6002] munmap(0x7f3be0600000, 138412032) = 0 [pid 6002] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6002] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6002] ioctl(4, LOOP_CLR_FD) = 0 [pid 6002] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6002] close(4) = 0 [pid 6002] close(3) = 0 [pid 6002] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6001] <... futex resumed>) = 0 [pid 6002] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] exit_group(0) = ? [pid 6002] <... futex resumed>) = ? [pid 6002] +++ exited with 0 +++ [pid 6001] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6001, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6003 attached , child_tidptr=0x55557b776690) = 6003 [pid 6003] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6003] setpgid(0, 0) = 0 [pid 6003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6003] write(3, "1000", 4) = 4 [pid 6003] close(3) = 0 executing program [pid 6003] write(1, "executing program\n", 18) = 18 [pid 6003] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6003] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6003] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6003] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6003] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6003] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6004 attached [pid 6004] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6003] <... clone3 resumed> => {parent_tid=[6004]}, 88) = 6004 [pid 6004] <... rseq resumed>) = 0 [pid 6003] rt_sigprocmask(SIG_SETMASK, [], [pid 6004] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6003] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6004] <... set_robust_list resumed>) = 0 [pid 6003] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6003] <... futex resumed>) = 0 [pid 6004] memfd_create("syzkaller", 0 [pid 6003] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6004] <... memfd_create resumed>) = 3 [pid 6004] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6004] 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"..., 16777216) = 16777216 [pid 6004] munmap(0x7f3be0600000, 138412032) = 0 [pid 6004] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6004] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6004] ioctl(4, LOOP_CLR_FD) = 0 [pid 6004] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6004] close(4) = 0 [pid 6004] close(3) = 0 [pid 6004] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6003] <... futex resumed>) = 0 [pid 6003] exit_group(0 [pid 6004] <... futex resumed>) = ? [pid 6003] <... exit_group resumed>) = ? [pid 6004] +++ exited with 0 +++ [pid 6003] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6003, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6005 attached , child_tidptr=0x55557b776690) = 6005 [pid 6005] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6005] setpgid(0, 0) = 0 [pid 6005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6005] write(3, "1000", 4) = 4 [pid 6005] close(3) = 0 executing program [pid 6005] write(1, "executing program\n", 18) = 18 [pid 6005] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6005] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6005] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6005] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6005] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6005] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6006 attached [pid 6006] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6005] <... clone3 resumed> => {parent_tid=[6006]}, 88) = 6006 [pid 6006] <... rseq resumed>) = 0 [pid 6005] rt_sigprocmask(SIG_SETMASK, [], [pid 6006] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6005] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6006] <... set_robust_list resumed>) = 0 [pid 6005] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6006] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6005] <... futex resumed>) = 0 [pid 6006] memfd_create("syzkaller", 0 [pid 6005] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6006] <... memfd_create resumed>) = 3 [pid 6006] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6006] 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"..., 16777216) = 16777216 [pid 6006] munmap(0x7f3be0600000, 138412032) = 0 [pid 6006] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6006] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6006] ioctl(4, LOOP_CLR_FD) = 0 [pid 6006] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6006] close(4) = 0 [pid 6006] close(3) = 0 [pid 6006] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6005] <... futex resumed>) = 0 [pid 6005] exit_group(0 [pid 6006] <... futex resumed>) = ? [pid 6005] <... exit_group resumed>) = ? [pid 6006] +++ exited with 0 +++ [pid 6005] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6005, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6007 attached , child_tidptr=0x55557b776690) = 6007 [pid 6007] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6007] setpgid(0, 0) = 0 [pid 6007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6007] write(3, "1000", 4) = 4 [pid 6007] close(3) = 0 [pid 6007] write(1, "executing program\n", 18executing program ) = 18 [pid 6007] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6007] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6007] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6007] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6007] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6007] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6008 attached [pid 6008] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6007] <... clone3 resumed> => {parent_tid=[6008]}, 88) = 6008 [pid 6008] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6007] rt_sigprocmask(SIG_SETMASK, [], [pid 6008] <... set_robust_list resumed>) = 0 [pid 6007] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6008] rt_sigprocmask(SIG_SETMASK, [], [pid 6007] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6008] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6007] <... futex resumed>) = 0 [pid 6008] memfd_create("syzkaller", 0 [pid 6007] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6008] <... memfd_create resumed>) = 3 [pid 6008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6008] 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"..., 16777216) = 16777216 [pid 6008] munmap(0x7f3be0600000, 138412032) = 0 [pid 6008] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6008] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6008] ioctl(4, LOOP_CLR_FD) = 0 [pid 6008] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6008] close(4) = 0 [pid 6008] close(3) = 0 [pid 6008] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... futex resumed>) = 0 [pid 6007] exit_group(0) = ? [pid 6008] <... futex resumed>) = ? [pid 6008] +++ exited with 0 +++ [pid 6007] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6007, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6009 attached , child_tidptr=0x55557b776690) = 6009 [pid 6009] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6009] setpgid(0, 0) = 0 [pid 6009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6009] write(3, "1000", 4) = 4 [pid 6009] close(3) = 0 executing program [pid 6009] write(1, "executing program\n", 18) = 18 [pid 6009] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6009] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6009] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6009] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6009] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6009] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6010 attached [pid 6010] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6009] <... clone3 resumed> => {parent_tid=[6010]}, 88) = 6010 [pid 6010] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6009] rt_sigprocmask(SIG_SETMASK, [], [pid 6010] <... set_robust_list resumed>) = 0 [pid 6009] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6010] rt_sigprocmask(SIG_SETMASK, [], [pid 6009] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6010] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6009] <... futex resumed>) = 0 [pid 6010] memfd_create("syzkaller", 0 [pid 6009] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6010] <... memfd_create resumed>) = 3 [pid 6010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6010] 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"..., 16777216) = 16777216 [pid 6010] munmap(0x7f3be0600000, 138412032) = 0 [pid 6010] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6010] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6010] ioctl(4, LOOP_CLR_FD) = 0 [pid 6010] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6010] close(4) = 0 [pid 6010] close(3) = 0 [pid 6010] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6009] <... futex resumed>) = 0 [pid 6009] exit_group(0 [pid 6010] <... futex resumed>) = ? [pid 6010] +++ exited with 0 +++ [pid 6009] <... exit_group resumed>) = ? [pid 6009] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6009, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6011 attached , child_tidptr=0x55557b776690) = 6011 [pid 6011] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6011] setpgid(0, 0) = 0 [pid 6011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6011] write(3, "1000", 4) = 4 [pid 6011] close(3) = 0 [pid 6011] write(1, "executing program\n", 18executing program ) = 18 [pid 6011] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6011] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6011] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6011] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6011] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6011] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6011] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[6012]}, 88) = 6012 ./strace-static-x86_64: Process 6012 attached [pid 6011] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6011] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6012] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6011] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6012] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6012] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6012] memfd_create("syzkaller", 0) = 3 [pid 6012] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6012] 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"..., 16777216) = 16777216 [pid 6012] munmap(0x7f3be0600000, 138412032) = 0 [pid 6012] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6012] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6012] ioctl(4, LOOP_CLR_FD) = 0 [pid 6012] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6012] close(4) = 0 [pid 6012] close(3) = 0 [pid 6012] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6012] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] <... futex resumed>) = 0 [pid 6011] exit_group(0 [pid 6012] <... futex resumed>) = ? [pid 6011] <... exit_group resumed>) = ? [pid 6012] +++ exited with 0 +++ [pid 6011] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6011, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6013 attached , child_tidptr=0x55557b776690) = 6013 [pid 6013] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6013] setpgid(0, 0) = 0 [pid 6013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6013] write(3, "1000", 4) = 4 [pid 6013] close(3) = 0 executing program [pid 6013] write(1, "executing program\n", 18) = 18 [pid 6013] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6013] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6013] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6013] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6013] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6013] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6014 attached [pid 6014] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6013] <... clone3 resumed> => {parent_tid=[6014]}, 88) = 6014 [pid 6014] <... rseq resumed>) = 0 [pid 6013] rt_sigprocmask(SIG_SETMASK, [], [pid 6014] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6013] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6014] <... set_robust_list resumed>) = 0 [pid 6013] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] rt_sigprocmask(SIG_SETMASK, [], [pid 6013] <... futex resumed>) = 0 [pid 6014] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6013] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6014] memfd_create("syzkaller", 0) = 3 [pid 6014] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6014] 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"..., 16777216) = 16777216 [pid 6014] munmap(0x7f3be0600000, 138412032) = 0 [pid 6014] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6014] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6014] ioctl(4, LOOP_CLR_FD) = 0 [pid 6014] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6014] close(4) = 0 [pid 6014] close(3) = 0 [pid 6014] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6014] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6013] <... futex resumed>) = 0 [pid 6013] exit_group(0 [pid 6014] <... futex resumed>) = ? [pid 6013] <... exit_group resumed>) = ? [pid 6014] +++ exited with 0 +++ [pid 6013] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6013, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6015 attached , child_tidptr=0x55557b776690) = 6015 [pid 6015] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6015] setpgid(0, 0) = 0 [pid 6015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6015] write(3, "1000", 4) = 4 [pid 6015] close(3) = 0 [pid 6015] write(1, "executing program\n", 18executing program ) = 18 [pid 6015] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6015] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6015] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6015] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6015] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6015] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6016 attached [pid 6016] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6015] <... clone3 resumed> => {parent_tid=[6016]}, 88) = 6016 [pid 6016] <... rseq resumed>) = 0 [pid 6015] rt_sigprocmask(SIG_SETMASK, [], [pid 6016] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6015] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6016] <... set_robust_list resumed>) = 0 [pid 6015] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6015] <... futex resumed>) = 0 [pid 6016] memfd_create("syzkaller", 0 [pid 6015] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6016] <... memfd_create resumed>) = 3 [pid 6016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6016] 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"..., 16777216) = 16777216 [pid 6016] munmap(0x7f3be0600000, 138412032) = 0 [pid 6016] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6016] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6016] ioctl(4, LOOP_CLR_FD) = 0 [pid 6016] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6016] close(4) = 0 [pid 6016] close(3) = 0 [pid 6016] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... futex resumed>) = 0 [pid 6016] <... futex resumed>) = 1 [pid 6015] exit_group(0) = ? [pid 6016] +++ exited with 0 +++ [pid 6015] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6015, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6017 attached , child_tidptr=0x55557b776690) = 6017 [pid 6017] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6017] setpgid(0, 0) = 0 [pid 6017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6017] write(3, "1000", 4) = 4 [pid 6017] close(3) = 0 [pid 6017] write(1, "executing program\n", 18executing program ) = 18 [pid 6017] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6017] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6017] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6017] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6017] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6017] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6018 attached [pid 6018] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6017] <... clone3 resumed> => {parent_tid=[6018]}, 88) = 6018 [pid 6018] <... rseq resumed>) = 0 [pid 6017] rt_sigprocmask(SIG_SETMASK, [], [pid 6018] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6017] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6018] <... set_robust_list resumed>) = 0 [pid 6017] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6017] <... futex resumed>) = 0 [pid 6018] memfd_create("syzkaller", 0 [pid 6017] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6018] <... memfd_create resumed>) = 3 [pid 6018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6018] 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"..., 16777216) = 16777216 [pid 6018] munmap(0x7f3be0600000, 138412032) = 0 [pid 6018] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6018] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6018] ioctl(4, LOOP_CLR_FD) = 0 [pid 6018] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6018] close(4) = 0 [pid 6018] close(3) = 0 [pid 6018] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] <... futex resumed>) = 0 [pid 6017] exit_group(0 [pid 6018] <... futex resumed>) = ? [pid 6017] <... exit_group resumed>) = ? [pid 6018] +++ exited with 0 +++ [pid 6017] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6017, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6019 attached , child_tidptr=0x55557b776690) = 6019 [pid 6019] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6019] setpgid(0, 0) = 0 [pid 6019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6019] write(3, "1000", 4) = 4 [pid 6019] close(3) = 0 [pid 6019] write(1, "executing program\n", 18) = 18 executing program [pid 6019] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6019] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6019] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6019] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6019] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6019] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6020 attached => {parent_tid=[6020]}, 88) = 6020 [pid 6019] rt_sigprocmask(SIG_SETMASK, [], [pid 6020] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6019] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6019] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] <... rseq resumed>) = 0 [pid 6020] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6019] <... futex resumed>) = 0 [pid 6020] <... set_robust_list resumed>) = 0 [pid 6019] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6020] memfd_create("syzkaller", 0) = 3 [pid 6020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6020] 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"..., 16777216) = 16777216 [pid 6020] munmap(0x7f3be0600000, 138412032) = 0 [pid 6020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6020] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6020] ioctl(4, LOOP_CLR_FD) = 0 [pid 6020] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6020] close(4) = 0 [pid 6020] close(3) = 0 [pid 6020] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6020] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6019] <... futex resumed>) = 0 [pid 6019] exit_group(0) = ? [pid 6020] <... futex resumed>) = ? [pid 6020] +++ exited with 0 +++ [pid 6019] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6019, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6021 attached , child_tidptr=0x55557b776690) = 6021 [pid 6021] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6021] setpgid(0, 0) = 0 [pid 6021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6021] write(3, "1000", 4) = 4 [pid 6021] close(3) = 0 [pid 6021] write(1, "executing program\n", 18executing program ) = 18 [pid 6021] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6021] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6021] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6021] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6021] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6021] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6022 attached [pid 6022] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6021] <... clone3 resumed> => {parent_tid=[6022]}, 88) = 6022 [pid 6022] <... rseq resumed>) = 0 [pid 6021] rt_sigprocmask(SIG_SETMASK, [], [pid 6022] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6021] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6022] <... set_robust_list resumed>) = 0 [pid 6021] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6021] <... futex resumed>) = 0 [pid 6021] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6022] memfd_create("syzkaller", 0) = 3 [pid 6022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6022] 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"..., 16777216) = 16777216 [pid 6022] munmap(0x7f3be0600000, 138412032) = 0 [pid 6022] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6022] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6022] ioctl(4, LOOP_CLR_FD) = 0 [pid 6022] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6022] close(4) = 0 [pid 6022] close(3) = 0 [pid 6022] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6021] <... futex resumed>) = 0 [pid 6022] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6021] exit_group(0 [pid 6022] <... futex resumed>) = ? [pid 6021] <... exit_group resumed>) = ? [pid 6022] +++ exited with 0 +++ [pid 6021] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6021, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6023 attached , child_tidptr=0x55557b776690) = 6023 [pid 6023] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6023] setpgid(0, 0) = 0 [pid 6023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6023] write(3, "1000", 4) = 4 [pid 6023] close(3) = 0 [pid 6023] write(1, "executing program\n", 18executing program ) = 18 [pid 6023] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6023] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6023] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6023] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6023] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6023] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6023] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6024 attached [pid 6024] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6023] <... clone3 resumed> => {parent_tid=[6024]}, 88) = 6024 [pid 6024] <... rseq resumed>) = 0 [pid 6023] rt_sigprocmask(SIG_SETMASK, [], [pid 6024] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6023] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6024] <... set_robust_list resumed>) = 0 [pid 6023] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6023] <... futex resumed>) = 0 [pid 6024] memfd_create("syzkaller", 0 [pid 6023] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6024] <... memfd_create resumed>) = 3 [pid 6024] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6024] 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"..., 16777216) = 16777216 [pid 6024] munmap(0x7f3be0600000, 138412032) = 0 [pid 6024] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6024] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6024] ioctl(4, LOOP_CLR_FD) = 0 [pid 6024] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6024] close(4) = 0 [pid 6024] close(3) = 0 [pid 6024] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6023] <... futex resumed>) = 0 [pid 6024] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6023] exit_group(0 [pid 6024] <... futex resumed>) = ? [pid 6024] +++ exited with 0 +++ [pid 6023] <... exit_group resumed>) = ? [pid 6023] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6023, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=10 /* 0.10 s */} --- 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 6025 attached , child_tidptr=0x55557b776690) = 6025 [pid 6025] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6025] setpgid(0, 0) = 0 [pid 6025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6025] write(3, "1000", 4) = 4 [pid 6025] close(3) = 0 executing program [pid 6025] write(1, "executing program\n", 18) = 18 [pid 6025] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6025] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6025] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6025] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6025] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6025] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6025] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6026 attached [pid 6026] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6026] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6026] rt_sigprocmask(SIG_SETMASK, [], [pid 6025] <... clone3 resumed> => {parent_tid=[6026]}, 88) = 6026 [pid 6026] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6025] rt_sigprocmask(SIG_SETMASK, [], [pid 6026] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6025] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6025] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] <... futex resumed>) = 0 [pid 6026] memfd_create("syzkaller", 0 [pid 6025] <... futex resumed>) = 1 [pid 6025] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6026] <... memfd_create resumed>) = 3 [pid 6026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6026] 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"..., 16777216) = 16777216 [pid 6026] munmap(0x7f3be0600000, 138412032) = 0 [pid 6026] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6026] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6026] ioctl(4, LOOP_CLR_FD) = 0 [pid 6026] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6026] close(4) = 0 [pid 6026] close(3) = 0 [pid 6026] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6025] <... futex resumed>) = 0 [pid 6026] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6025] exit_group(0) = ? [pid 6026] <... futex resumed>) = ? [pid 6026] +++ exited with 0 +++ [pid 6025] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6025, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6027 attached , child_tidptr=0x55557b776690) = 6027 [pid 6027] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6027] setpgid(0, 0) = 0 [pid 6027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6027] write(3, "1000", 4) = 4 [pid 6027] close(3) = 0 [pid 6027] write(1, "executing program\n", 18executing program ) = 18 [pid 6027] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6027] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6027] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6027] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6027] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6027] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6028 attached [pid 6028] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6027] <... clone3 resumed> => {parent_tid=[6028]}, 88) = 6028 [pid 6028] <... rseq resumed>) = 0 [pid 6027] rt_sigprocmask(SIG_SETMASK, [], [pid 6028] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6027] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6028] <... set_robust_list resumed>) = 0 [pid 6027] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6028] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6027] <... futex resumed>) = 0 [pid 6028] memfd_create("syzkaller", 0 [pid 6027] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6028] <... memfd_create resumed>) = 3 [pid 6028] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6028] 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"..., 16777216) = 16777216 [pid 6028] munmap(0x7f3be0600000, 138412032) = 0 [pid 6028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6028] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6028] ioctl(4, LOOP_CLR_FD) = 0 [pid 6028] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6028] close(4) = 0 [pid 6028] close(3) = 0 [pid 6028] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6027] <... futex resumed>) = 0 [pid 6028] <... futex resumed>) = 1 [pid 6027] exit_group(0 [pid 6028] +++ exited with 0 +++ [pid 6027] <... exit_group resumed>) = ? [pid 6027] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6027, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6029 attached , child_tidptr=0x55557b776690) = 6029 [pid 6029] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6029] setpgid(0, 0) = 0 [pid 6029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6029] write(3, "1000", 4) = 4 [pid 6029] close(3) = 0 executing program [pid 6029] write(1, "executing program\n", 18) = 18 [pid 6029] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6029] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6029] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6029] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6029] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6029] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6030 attached => {parent_tid=[6030]}, 88) = 6030 [pid 6030] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6029] rt_sigprocmask(SIG_SETMASK, [], [pid 6030] <... rseq resumed>) = 0 [pid 6029] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6029] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6029] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6030] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6030] memfd_create("syzkaller", 0) = 3 [pid 6030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6030] 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"..., 16777216) = 16777216 [pid 6030] munmap(0x7f3be0600000, 138412032) = 0 [pid 6030] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6030] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6030] ioctl(4, LOOP_CLR_FD) = 0 [pid 6030] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6030] close(4) = 0 [pid 6030] close(3) = 0 [pid 6030] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6029] <... futex resumed>) = 0 [pid 6030] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6029] exit_group(0) = ? [pid 6030] <... futex resumed>) = ? [pid 6030] +++ exited with 0 +++ [pid 6029] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6029, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6031 attached , child_tidptr=0x55557b776690) = 6031 [pid 6031] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6031] setpgid(0, 0) = 0 [pid 6031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6031] write(3, "1000", 4) = 4 [pid 6031] close(3) = 0 [pid 6031] write(1, "executing program\n", 18executing program ) = 18 [pid 6031] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6031] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6031] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6031] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6031] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6031] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6032 attached [pid 6032] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6031] <... clone3 resumed> => {parent_tid=[6032]}, 88) = 6032 [pid 6032] <... rseq resumed>) = 0 [pid 6032] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6031] rt_sigprocmask(SIG_SETMASK, [], [pid 6032] rt_sigprocmask(SIG_SETMASK, [], [pid 6031] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6031] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] memfd_create("syzkaller", 0 [pid 6031] <... futex resumed>) = 0 [pid 6031] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6032] <... memfd_create resumed>) = 3 [pid 6032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6032] 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"..., 16777216) = 16777216 [pid 6032] munmap(0x7f3be0600000, 138412032) = 0 [pid 6032] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6032] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6032] ioctl(4, LOOP_CLR_FD) = 0 [pid 6032] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6032] close(4) = 0 [pid 6032] close(3) = 0 [pid 6032] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] <... futex resumed>) = 0 [pid 6032] <... futex resumed>) = 1 [pid 6031] exit_group(0 [pid 6032] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6031] <... exit_group resumed>) = ? [pid 6032] +++ exited with 0 +++ [pid 6031] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6031, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6033 attached , child_tidptr=0x55557b776690) = 6033 [pid 6033] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6033] setpgid(0, 0) = 0 [pid 6033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6033] write(3, "1000", 4) = 4 [pid 6033] close(3) = 0 [pid 6033] write(1, "executing program\n", 18executing program ) = 18 [pid 6033] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6033] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6033] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6033] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6033] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6033] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6034 attached => {parent_tid=[6034]}, 88) = 6034 [pid 6033] rt_sigprocmask(SIG_SETMASK, [], [pid 6034] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6033] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6033] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] <... rseq resumed>) = 0 [pid 6034] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6033] <... futex resumed>) = 0 [pid 6034] <... set_robust_list resumed>) = 0 [pid 6033] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6034] memfd_create("syzkaller", 0) = 3 [pid 6034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6034] 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"..., 16777216) = 16777216 [pid 6034] munmap(0x7f3be0600000, 138412032) = 0 [pid 6034] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6034] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6034] ioctl(4, LOOP_CLR_FD) = 0 [pid 6034] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6034] close(4) = 0 [pid 6034] close(3) = 0 [pid 6034] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6033] <... futex resumed>) = 0 [pid 6034] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6033] exit_group(0 [pid 6034] <... futex resumed>) = ? [pid 6033] <... exit_group resumed>) = ? [pid 6034] +++ exited with 0 +++ [pid 6033] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6033, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6035 attached , child_tidptr=0x55557b776690) = 6035 [pid 6035] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6035] setpgid(0, 0) = 0 [pid 6035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6035] write(3, "1000", 4) = 4 [pid 6035] close(3) = 0 executing program [pid 6035] write(1, "executing program\n", 18) = 18 [pid 6035] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6035] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6035] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6035] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6035] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6035] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6035] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6036 attached [pid 6036] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6035] <... clone3 resumed> => {parent_tid=[6036]}, 88) = 6036 [pid 6036] <... rseq resumed>) = 0 [pid 6035] rt_sigprocmask(SIG_SETMASK, [], [pid 6036] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6036] <... set_robust_list resumed>) = 0 [pid 6035] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6035] <... futex resumed>) = 0 [pid 6036] memfd_create("syzkaller", 0 [pid 6035] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6036] <... memfd_create resumed>) = 3 [pid 6036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6036] 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"..., 16777216) = 16777216 [pid 6036] munmap(0x7f3be0600000, 138412032) = 0 [pid 6036] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6036] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6036] ioctl(4, LOOP_CLR_FD) = 0 [pid 6036] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6036] close(4) = 0 [pid 6036] close(3) = 0 [pid 6036] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6035] <... futex resumed>) = 0 [pid 6036] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] exit_group(0 [pid 6036] <... futex resumed>) = ? [pid 6035] <... exit_group resumed>) = ? [pid 6036] +++ exited with 0 +++ [pid 6035] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6035, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6037 attached , child_tidptr=0x55557b776690) = 6037 [pid 6037] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6037] setpgid(0, 0) = 0 [pid 6037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6037] write(3, "1000", 4) = 4 [pid 6037] close(3) = 0 executing program [pid 6037] write(1, "executing program\n", 18) = 18 [pid 6037] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6037] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6037] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6037] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6037] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6037] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6038 attached [pid 6038] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6037] <... clone3 resumed> => {parent_tid=[6038]}, 88) = 6038 [pid 6038] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6037] rt_sigprocmask(SIG_SETMASK, [], [pid 6038] <... set_robust_list resumed>) = 0 [pid 6037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6038] rt_sigprocmask(SIG_SETMASK, [], [pid 6037] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6038] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6037] <... futex resumed>) = 0 [pid 6038] memfd_create("syzkaller", 0 [pid 6037] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6038] <... memfd_create resumed>) = 3 [pid 6038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6038] 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"..., 16777216) = 16777216 [pid 6038] munmap(0x7f3be0600000, 138412032) = 0 [pid 6038] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6038] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6038] ioctl(4, LOOP_CLR_FD) = 0 [pid 6038] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6038] close(4) = 0 [pid 6038] close(3) = 0 [pid 6038] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6037] <... futex resumed>) = 0 [pid 6038] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6037] exit_group(0 [pid 6038] <... futex resumed>) = ? [pid 6037] <... exit_group resumed>) = ? [pid 6038] +++ exited with 0 +++ [pid 6037] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6037, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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=0x55557b776690) = 6039 ./strace-static-x86_64: Process 6039 attached [pid 6039] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6039] setpgid(0, 0) = 0 [pid 6039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6039] write(3, "1000", 4) = 4 [pid 6039] close(3) = 0 [pid 6039] write(1, "executing program\n", 18executing program ) = 18 [pid 6039] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6039] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6039] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6039] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6039] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6039] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6039] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6040 attached => {parent_tid=[6040]}, 88) = 6040 [pid 6039] rt_sigprocmask(SIG_SETMASK, [], [pid 6040] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6040] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6039] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6040] <... set_robust_list resumed>) = 0 [pid 6039] <... futex resumed>) = 0 [pid 6040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6039] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6040] memfd_create("syzkaller", 0) = 3 [pid 6040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6040] 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"..., 16777216) = 16777216 [pid 6040] munmap(0x7f3be0600000, 138412032) = 0 [pid 6040] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6040] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6040] ioctl(4, LOOP_CLR_FD) = 0 [pid 6040] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6040] close(4) = 0 [pid 6040] close(3) = 0 [pid 6040] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6039] <... futex resumed>) = 0 [pid 6040] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6039] exit_group(0 [pid 6040] <... futex resumed>) = ? [pid 6040] +++ exited with 0 +++ [pid 6039] <... exit_group resumed>) = ? [pid 6039] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6039, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6041 attached , child_tidptr=0x55557b776690) = 6041 [pid 6041] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6041] setpgid(0, 0) = 0 [pid 6041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6041] write(3, "1000", 4) = 4 [pid 6041] close(3) = 0 [pid 6041] write(1, "executing program\n", 18executing program ) = 18 [pid 6041] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6041] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6041] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6041] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6041] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6041] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6041] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6042 attached => {parent_tid=[6042]}, 88) = 6042 [pid 6042] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6041] rt_sigprocmask(SIG_SETMASK, [], [pid 6042] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6041] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6042] <... set_robust_list resumed>) = 0 [pid 6041] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6042] rt_sigprocmask(SIG_SETMASK, [], [pid 6041] <... futex resumed>) = 0 [pid 6042] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6041] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6042] memfd_create("syzkaller", 0) = 3 [pid 6042] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6042] 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"..., 16777216) = 16777216 [pid 6042] munmap(0x7f3be0600000, 138412032) = 0 [pid 6042] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6042] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6042] ioctl(4, LOOP_CLR_FD) = 0 [pid 6042] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6042] close(4) = 0 [pid 6042] close(3) = 0 [pid 6042] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6042] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6041] <... futex resumed>) = 0 [pid 6041] exit_group(0) = ? [pid 6042] <... futex resumed>) = ? [pid 6042] +++ exited with 0 +++ [pid 6041] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6041, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6043 attached , child_tidptr=0x55557b776690) = 6043 [pid 6043] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6043] setpgid(0, 0) = 0 [pid 6043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6043] write(3, "1000", 4) = 4 [pid 6043] close(3) = 0 [pid 6043] write(1, "executing program\n", 18executing program ) = 18 [pid 6043] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6043] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6043] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6043] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6043] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6043] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6043] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6044 attached => {parent_tid=[6044]}, 88) = 6044 [pid 6043] rt_sigprocmask(SIG_SETMASK, [], [pid 6044] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6043] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6044] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6043] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6044] <... set_robust_list resumed>) = 0 [pid 6043] <... futex resumed>) = 0 [pid 6044] rt_sigprocmask(SIG_SETMASK, [], [pid 6043] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6044] memfd_create("syzkaller", 0) = 3 [pid 6044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6044] 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"..., 16777216) = 16777216 [pid 6044] munmap(0x7f3be0600000, 138412032) = 0 [pid 6044] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6044] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6044] ioctl(4, LOOP_CLR_FD) = 0 [pid 6044] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6044] close(4) = 0 [pid 6044] close(3) = 0 [pid 6044] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6043] <... futex resumed>) = 0 [pid 6044] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6043] exit_group(0 [pid 6044] <... futex resumed>) = ? [pid 6044] +++ exited with 0 +++ [pid 6043] <... exit_group resumed>) = ? [pid 6043] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6043, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6045 attached , child_tidptr=0x55557b776690) = 6045 [pid 6045] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6045] setpgid(0, 0) = 0 [pid 6045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6045] write(3, "1000", 4) = 4 [pid 6045] close(3) = 0 [pid 6045] write(1, "executing program\n", 18executing program ) = 18 [pid 6045] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6045] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6045] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6045] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6045] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6045] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6046 attached => {parent_tid=[6046]}, 88) = 6046 [pid 6045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6045] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6046] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6045] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6046] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6046] memfd_create("syzkaller", 0) = 3 [pid 6046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6046] 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"..., 16777216) = 16777216 [pid 6046] munmap(0x7f3be0600000, 138412032) = 0 [pid 6046] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6046] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6046] ioctl(4, LOOP_CLR_FD) = 0 [pid 6046] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6046] close(4) = 0 [pid 6046] close(3) = 0 [pid 6046] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6045] <... futex resumed>) = 0 [pid 6046] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] exit_group(0 [pid 6046] <... futex resumed>) = ? [pid 6045] <... exit_group resumed>) = ? [pid 6046] +++ exited with 0 +++ [pid 6045] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6045, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6047 attached , child_tidptr=0x55557b776690) = 6047 [pid 6047] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6047] setpgid(0, 0) = 0 [pid 6047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6047] write(3, "1000", 4) = 4 [pid 6047] close(3) = 0 [pid 6047] write(1, "executing program\n", 18executing program ) = 18 [pid 6047] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6047] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6047] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6047] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6047] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6047] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6047] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6048 attached => {parent_tid=[6048]}, 88) = 6048 [pid 6047] rt_sigprocmask(SIG_SETMASK, [], [pid 6048] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6047] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6048] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6047] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... set_robust_list resumed>) = 0 [pid 6047] <... futex resumed>) = 0 [pid 6048] rt_sigprocmask(SIG_SETMASK, [], [pid 6047] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6048] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6048] memfd_create("syzkaller", 0) = 3 [pid 6048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6048] 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"..., 16777216) = 16777216 [pid 6048] munmap(0x7f3be0600000, 138412032) = 0 [pid 6048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6048] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6048] ioctl(4, LOOP_CLR_FD) = 0 [pid 6048] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6048] close(4) = 0 [pid 6048] close(3) = 0 [pid 6048] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6048] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6047] <... futex resumed>) = 0 [pid 6047] exit_group(0) = ? [pid 6048] <... futex resumed>) = ? [pid 6048] +++ exited with 0 +++ [pid 6047] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6047, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6049 attached , child_tidptr=0x55557b776690) = 6049 [pid 6049] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6049] setpgid(0, 0) = 0 [pid 6049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6049] write(3, "1000", 4) = 4 [pid 6049] close(3) = 0 executing program [pid 6049] write(1, "executing program\n", 18) = 18 [pid 6049] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6049] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6049] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6049] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6049] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6049] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6050 attached [pid 6050] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6049] <... clone3 resumed> => {parent_tid=[6050]}, 88) = 6050 [pid 6050] <... rseq resumed>) = 0 [pid 6049] rt_sigprocmask(SIG_SETMASK, [], [pid 6050] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6049] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6050] <... set_robust_list resumed>) = 0 [pid 6049] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6050] rt_sigprocmask(SIG_SETMASK, [], [pid 6049] <... futex resumed>) = 0 [pid 6050] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6049] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6050] memfd_create("syzkaller", 0) = 3 [pid 6050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6050] 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"..., 16777216) = 16777216 [pid 6050] munmap(0x7f3be0600000, 138412032) = 0 [pid 6050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6050] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6050] ioctl(4, LOOP_CLR_FD) = 0 [pid 6050] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6050] close(4) = 0 [pid 6050] close(3) = 0 [pid 6050] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6049] <... futex resumed>) = 0 [pid 6050] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6049] exit_group(0 [pid 6050] <... futex resumed>) = ? [pid 6050] +++ exited with 0 +++ [pid 6049] <... exit_group resumed>) = ? [pid 6049] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6049, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- 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 6051 attached , child_tidptr=0x55557b776690) = 6051 [pid 6051] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6051] setpgid(0, 0) = 0 [pid 6051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6051] write(3, "1000", 4) = 4 [pid 6051] close(3) = 0 [pid 6051] write(1, "executing program\n", 18executing program ) = 18 [pid 6051] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6051] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6051] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6051] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6051] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6051] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6051] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[6052]}, 88) = 6052 ./strace-static-x86_64: Process 6052 attached [pid 6051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6052] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6051] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6051] <... futex resumed>) = 0 [pid 6052] <... set_robust_list resumed>) = 0 [pid 6051] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6052] memfd_create("syzkaller", 0) = 3 [pid 6052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6052] 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"..., 16777216) = 16777216 [pid 6052] munmap(0x7f3be0600000, 138412032) = 0 [pid 6052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6052] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6052] ioctl(4, LOOP_CLR_FD) = 0 [pid 6052] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6052] close(4) = 0 [pid 6052] close(3) = 0 [pid 6052] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6051] <... futex resumed>) = 0 [pid 6052] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] exit_group(0) = ? [pid 6052] <... futex resumed>) = ? [pid 6052] +++ exited with 0 +++ [pid 6051] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6051, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6053 attached , child_tidptr=0x55557b776690) = 6053 [pid 6053] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6053] setpgid(0, 0) = 0 [pid 6053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6053] write(3, "1000", 4) = 4 [pid 6053] close(3) = 0 [pid 6053] write(1, "executing program\n", 18executing program ) = 18 [pid 6053] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6053] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6053] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6053] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6053] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6053] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6053] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6054 attached [pid 6054] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6054] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6054] rt_sigprocmask(SIG_SETMASK, [], [pid 6053] <... clone3 resumed> => {parent_tid=[6054]}, 88) = 6054 [pid 6054] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6053] rt_sigprocmask(SIG_SETMASK, [], [pid 6054] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6053] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = 0 [pid 6053] <... futex resumed>) = 1 [pid 6053] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6054] memfd_create("syzkaller", 0) = 3 [pid 6054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6054] 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"..., 16777216) = 16777216 [pid 6054] munmap(0x7f3be0600000, 138412032) = 0 [pid 6054] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6054] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6054] ioctl(4, LOOP_CLR_FD) = 0 [pid 6054] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6054] close(4) = 0 [pid 6054] close(3) = 0 [pid 6054] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6053] <... futex resumed>) = 0 [pid 6054] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] exit_group(0 [pid 6054] <... futex resumed>) = ? [pid 6053] <... exit_group resumed>) = ? [pid 6054] +++ exited with 0 +++ [pid 6053] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6053, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6055 attached , child_tidptr=0x55557b776690) = 6055 [pid 6055] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6055] setpgid(0, 0) = 0 [pid 6055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6055] write(3, "1000", 4) = 4 [pid 6055] close(3) = 0 executing program [pid 6055] write(1, "executing program\n", 18) = 18 [pid 6055] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6055] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6055] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6055] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6055] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6055] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6055] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[6056]}, 88) = 6056 ./strace-static-x86_64: Process 6056 attached [pid 6056] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6056] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6055] rt_sigprocmask(SIG_SETMASK, [], [pid 6056] <... set_robust_list resumed>) = 0 [pid 6055] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6056] rt_sigprocmask(SIG_SETMASK, [], [pid 6055] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6056] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6055] <... futex resumed>) = 0 [pid 6055] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6056] memfd_create("syzkaller", 0) = 3 [pid 6056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6056] 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"..., 16777216) = 16777216 [pid 6056] munmap(0x7f3be0600000, 138412032) = 0 [pid 6056] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6056] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6056] ioctl(4, LOOP_CLR_FD) = 0 [pid 6056] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6056] close(4) = 0 [pid 6056] close(3) = 0 [pid 6056] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6055] <... futex resumed>) = 0 [pid 6055] exit_group(0 [pid 6056] <... futex resumed>) = ? [pid 6055] <... exit_group resumed>) = ? [pid 6056] +++ exited with 0 +++ [pid 6055] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6055, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6057 attached , child_tidptr=0x55557b776690) = 6057 [pid 6057] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6057] setpgid(0, 0) = 0 [pid 6057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6057] write(3, "1000", 4) = 4 [pid 6057] close(3) = 0 [pid 6057] write(1, "executing program\n", 18executing program ) = 18 [pid 6057] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6057] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6057] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6057] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6057] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6057] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6057] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6058 attached [pid 6058] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6057] <... clone3 resumed> => {parent_tid=[6058]}, 88) = 6058 [pid 6058] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6057] rt_sigprocmask(SIG_SETMASK, [], [pid 6058] <... set_robust_list resumed>) = 0 [pid 6057] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6058] rt_sigprocmask(SIG_SETMASK, [], [pid 6057] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6057] <... futex resumed>) = 0 [pid 6058] memfd_create("syzkaller", 0 [pid 6057] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6058] <... memfd_create resumed>) = 3 [pid 6058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6058] 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"..., 16777216) = 16777216 [pid 6058] munmap(0x7f3be0600000, 138412032) = 0 [pid 6058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6058] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6058] ioctl(4, LOOP_CLR_FD) = 0 [pid 6058] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6058] close(4) = 0 [pid 6058] close(3) = 0 [pid 6058] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] <... futex resumed>) = 0 [pid 6057] exit_group(0 [pid 6058] <... futex resumed>) = ? [pid 6057] <... exit_group resumed>) = ? [pid 6058] +++ exited with 0 +++ [pid 6057] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6057, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6059 attached , child_tidptr=0x55557b776690) = 6059 [pid 6059] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6059] setpgid(0, 0) = 0 [pid 6059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6059] write(3, "1000", 4) = 4 [pid 6059] close(3) = 0 executing program [pid 6059] write(1, "executing program\n", 18) = 18 [pid 6059] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6059] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6059] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6059] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6059] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6059] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6059] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6060 attached => {parent_tid=[6060]}, 88) = 6060 [pid 6059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6059] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6059] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6060] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6060] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6060] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6060] memfd_create("syzkaller", 0) = 3 [pid 6060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6060] 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"..., 16777216) = 16777216 [pid 6060] munmap(0x7f3be0600000, 138412032) = 0 [pid 6060] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6060] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6060] ioctl(4, LOOP_CLR_FD) = 0 [pid 6060] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6060] close(4) = 0 [pid 6060] close(3) = 0 [pid 6060] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6059] <... futex resumed>) = 0 [pid 6060] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6059] exit_group(0 [pid 6060] <... futex resumed>) = ? [pid 6060] +++ exited with 0 +++ [pid 6059] <... exit_group resumed>) = ? [pid 6059] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6059, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6061 attached , child_tidptr=0x55557b776690) = 6061 [pid 6061] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6061] setpgid(0, 0) = 0 [pid 6061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6061] write(3, "1000", 4) = 4 [pid 6061] close(3) = 0 [pid 6061] write(1, "executing program\n", 18executing program ) = 18 [pid 6061] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6061] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6061] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6061] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6061] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6061] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6062 attached [pid 6062] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6061] <... clone3 resumed> => {parent_tid=[6062]}, 88) = 6062 [pid 6062] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6061] rt_sigprocmask(SIG_SETMASK, [], [pid 6062] rt_sigprocmask(SIG_SETMASK, [], [pid 6061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6062] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6061] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6062] memfd_create("syzkaller", 0 [pid 6061] <... futex resumed>) = 0 [pid 6061] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6062] <... memfd_create resumed>) = 3 [pid 6062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6062] 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"..., 16777216) = 16777216 [pid 6062] munmap(0x7f3be0600000, 138412032) = 0 [pid 6062] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6062] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6062] ioctl(4, LOOP_CLR_FD) = 0 [pid 6062] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6062] close(4) = 0 [pid 6062] close(3) = 0 [pid 6062] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6061] <... futex resumed>) = 0 [pid 6062] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6061] exit_group(0 [pid 6062] <... futex resumed>) = ? [pid 6061] <... exit_group resumed>) = ? [pid 6062] +++ exited with 0 +++ [pid 6061] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6061, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 6063 attached , child_tidptr=0x55557b776690) = 6063 [pid 6063] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6063] setpgid(0, 0) = 0 [pid 6063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6063] write(3, "1000", 4) = 4 [pid 6063] close(3) = 0 executing program [pid 6063] write(1, "executing program\n", 18) = 18 [pid 6063] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6063] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6063] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6063] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6063] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6063] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6064 attached [pid 6064] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6063] <... clone3 resumed> => {parent_tid=[6064]}, 88) = 6064 [pid 6064] <... rseq resumed>) = 0 [pid 6063] rt_sigprocmask(SIG_SETMASK, [], [pid 6064] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6064] <... set_robust_list resumed>) = 0 [pid 6063] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6063] <... futex resumed>) = 0 [pid 6064] memfd_create("syzkaller", 0 [pid 6063] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6064] <... memfd_create resumed>) = 3 [pid 6064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6064] 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"..., 16777216) = 16777216 [pid 6064] munmap(0x7f3be0600000, 138412032) = 0 [pid 6064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6064] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6064] ioctl(4, LOOP_CLR_FD) = 0 [pid 6064] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6064] close(4) = 0 [pid 6064] close(3) = 0 [pid 6064] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6063] <... futex resumed>) = 0 [pid 6064] <... futex resumed>) = 1 [pid 6063] exit_group(0 [pid 6064] +++ exited with 0 +++ [pid 6063] <... exit_group resumed>) = ? [pid 6063] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6063, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6065 attached , child_tidptr=0x55557b776690) = 6065 [pid 6065] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6065] setpgid(0, 0) = 0 [pid 6065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6065] write(3, "1000", 4) = 4 [pid 6065] close(3) = 0 [pid 6065] write(1, "executing program\n", 18executing program ) = 18 [pid 6065] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6065] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6065] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6065] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6065] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6065] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6066 attached [pid 6066] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6065] <... clone3 resumed> => {parent_tid=[6066]}, 88) = 6066 [pid 6066] <... rseq resumed>) = 0 [pid 6065] rt_sigprocmask(SIG_SETMASK, [], [pid 6066] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6066] <... set_robust_list resumed>) = 0 [pid 6065] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6066] rt_sigprocmask(SIG_SETMASK, [], [pid 6065] <... futex resumed>) = 0 [pid 6066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6065] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6066] memfd_create("syzkaller", 0) = 3 [pid 6066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6066] 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"..., 16777216) = 16777216 [pid 6066] munmap(0x7f3be0600000, 138412032) = 0 [pid 6066] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6066] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6066] ioctl(4, LOOP_CLR_FD) = 0 [pid 6066] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6066] close(4) = 0 [pid 6066] close(3) = 0 [pid 6066] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6066] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] <... futex resumed>) = 0 [pid 6065] exit_group(0) = ? [pid 6066] <... futex resumed>) = ? [pid 6066] +++ exited with 0 +++ [pid 6065] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6065, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6067 attached , child_tidptr=0x55557b776690) = 6067 [pid 6067] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6067] setpgid(0, 0) = 0 [pid 6067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6067] write(3, "1000", 4) = 4 [pid 6067] close(3) = 0 [pid 6067] write(1, "executing program\n", 18executing program ) = 18 [pid 6067] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6067] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6067] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6067] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6067] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6067] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[6068]}, 88) = 6068 ./strace-static-x86_64: Process 6068 attached [pid 6067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6067] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6067] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6068] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6068] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6068] memfd_create("syzkaller", 0) = 3 [pid 6068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6068] 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"..., 16777216) = 16777216 [pid 6068] munmap(0x7f3be0600000, 138412032) = 0 [pid 6068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6068] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6068] ioctl(4, LOOP_CLR_FD) = 0 [pid 6068] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6068] close(4) = 0 [pid 6068] close(3) = 0 [pid 6068] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6067] <... futex resumed>) = 0 [pid 6068] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6067] exit_group(0 [pid 6068] <... futex resumed>) = ? [pid 6068] +++ exited with 0 +++ [pid 6067] <... exit_group resumed>) = ? [pid 6067] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6067, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6069 attached , child_tidptr=0x55557b776690) = 6069 [pid 6069] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6069] setpgid(0, 0) = 0 [pid 6069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6069] write(3, "1000", 4) = 4 [pid 6069] close(3) = 0 [pid 6069] write(1, "executing program\n", 18executing program ) = 18 [pid 6069] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6069] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6069] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6069] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6069] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6069] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6069] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6070 attached => {parent_tid=[6070]}, 88) = 6070 [pid 6070] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6070] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6070] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6069] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6070] <... futex resumed>) = 0 [pid 6069] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6070] memfd_create("syzkaller", 0) = 3 [pid 6070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6070] 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"..., 16777216) = 16777216 [pid 6070] munmap(0x7f3be0600000, 138412032) = 0 [pid 6070] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6070] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6070] ioctl(4, LOOP_CLR_FD) = 0 [pid 6070] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6070] close(4) = 0 [pid 6070] close(3) = 0 [pid 6070] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6070] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] <... futex resumed>) = 0 [pid 6069] exit_group(0) = ? [pid 6070] <... futex resumed>) = ? [pid 6070] +++ exited with 0 +++ [pid 6069] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6069, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6071 attached , child_tidptr=0x55557b776690) = 6071 [pid 6071] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6071] setpgid(0, 0) = 0 [pid 6071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6071] write(3, "1000", 4) = 4 [pid 6071] close(3) = 0 executing program [pid 6071] write(1, "executing program\n", 18) = 18 [pid 6071] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6071] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6071] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6071] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6071] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6071] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6072 attached => {parent_tid=[6072]}, 88) = 6072 [pid 6071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6071] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6072] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6071] <... futex resumed>) = 0 [pid 6072] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6071] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6072] <... set_robust_list resumed>) = 0 [pid 6072] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6072] memfd_create("syzkaller", 0) = 3 [pid 6072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6072] 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"..., 16777216) = 16777216 [pid 6072] munmap(0x7f3be0600000, 138412032) = 0 [pid 6072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6072] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6072] ioctl(4, LOOP_CLR_FD) = 0 [pid 6072] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6072] close(4) = 0 [pid 6072] close(3) = 0 [pid 6072] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6072] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6071] <... futex resumed>) = 0 [pid 6071] exit_group(0) = ? [pid 6072] <... futex resumed>) = ? [pid 6072] +++ exited with 0 +++ [pid 6071] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6071, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6073 attached , child_tidptr=0x55557b776690) = 6073 [pid 6073] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6073] setpgid(0, 0) = 0 [pid 6073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6073] write(3, "1000", 4) = 4 [pid 6073] close(3) = 0 [pid 6073] write(1, "executing program\n", 18executing program ) = 18 [pid 6073] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6073] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6073] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6073] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6073] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6073] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6074 attached [pid 6074] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6074] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6074] rt_sigprocmask(SIG_SETMASK, [], [pid 6073] <... clone3 resumed> => {parent_tid=[6074]}, 88) = 6074 [pid 6074] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6073] rt_sigprocmask(SIG_SETMASK, [], [pid 6074] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6073] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6074] <... futex resumed>) = 0 [pid 6073] <... futex resumed>) = 1 [pid 6073] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6074] memfd_create("syzkaller", 0) = 3 [pid 6074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6074] 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"..., 16777216) = 16777216 [pid 6074] munmap(0x7f3be0600000, 138412032) = 0 [pid 6074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6074] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6074] ioctl(4, LOOP_CLR_FD) = 0 [pid 6074] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6074] close(4) = 0 [pid 6074] close(3) = 0 [pid 6074] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6073] <... futex resumed>) = 0 [pid 6074] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6073] exit_group(0 [pid 6074] <... futex resumed>) = ? [pid 6073] <... exit_group resumed>) = ? [pid 6074] +++ exited with 0 +++ [pid 6073] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6073, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- 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 6075 attached , child_tidptr=0x55557b776690) = 6075 [pid 6075] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6075] setpgid(0, 0) = 0 [pid 6075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6075] write(3, "1000", 4) = 4 [pid 6075] close(3) = 0 executing program [pid 6075] write(1, "executing program\n", 18) = 18 [pid 6075] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6075] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6075] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6075] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6075] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6075] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6076 attached [pid 6076] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6075] <... clone3 resumed> => {parent_tid=[6076]}, 88) = 6076 [pid 6076] <... rseq resumed>) = 0 [pid 6076] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6075] rt_sigprocmask(SIG_SETMASK, [], [pid 6076] <... set_robust_list resumed>) = 0 [pid 6075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6076] rt_sigprocmask(SIG_SETMASK, [], [pid 6075] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6075] <... futex resumed>) = 0 [pid 6076] memfd_create("syzkaller", 0 [pid 6075] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6076] <... memfd_create resumed>) = 3 [pid 6076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6076] 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"..., 16777216) = 16777216 [pid 6076] munmap(0x7f3be0600000, 138412032) = 0 [pid 6076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6076] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6076] ioctl(4, LOOP_CLR_FD) = 0 [pid 6076] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6076] close(4) = 0 [pid 6076] close(3) = 0 [pid 6076] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] <... futex resumed>) = 0 [pid 6075] exit_group(0) = ? [pid 6076] <... futex resumed>) = ? [pid 6076] +++ exited with 0 +++ [pid 6075] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6075, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6077 attached , child_tidptr=0x55557b776690) = 6077 [pid 6077] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6077] setpgid(0, 0) = 0 [pid 6077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6077] write(3, "1000", 4) = 4 [pid 6077] close(3) = 0 [pid 6077] write(1, "executing program\n", 18executing program ) = 18 [pid 6077] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6077] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6077] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6077] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6077] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6077] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6077] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6078 attached [pid 6078] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6077] <... clone3 resumed> => {parent_tid=[6078]}, 88) = 6078 [pid 6078] <... rseq resumed>) = 0 [pid 6077] rt_sigprocmask(SIG_SETMASK, [], [pid 6078] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6077] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6078] <... set_robust_list resumed>) = 0 [pid 6077] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6077] <... futex resumed>) = 0 [pid 6077] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6078] memfd_create("syzkaller", 0) = 3 [pid 6078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6078] 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"..., 16777216) = 16777216 [pid 6078] munmap(0x7f3be0600000, 138412032) = 0 [pid 6078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6078] ioctl(4, LOOP_CLR_FD) = 0 [pid 6078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6078] close(4) = 0 [pid 6078] close(3) = 0 [pid 6078] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6078] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6077] <... futex resumed>) = 0 [pid 6077] exit_group(0) = ? [pid 6078] <... futex resumed>) = ? [pid 6078] +++ exited with 0 +++ [pid 6077] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6077, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6079 attached , child_tidptr=0x55557b776690) = 6079 [pid 6079] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6079] setpgid(0, 0) = 0 [pid 6079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6079] write(3, "1000", 4) = 4 [pid 6079] close(3) = 0 [pid 6079] write(1, "executing program\n", 18executing program ) = 18 [pid 6079] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6079] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6079] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6080 attached [pid 6080] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6079] <... clone3 resumed> => {parent_tid=[6080]}, 88) = 6080 [pid 6080] <... rseq resumed>) = 0 [pid 6079] rt_sigprocmask(SIG_SETMASK, [], [pid 6080] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6080] <... set_robust_list resumed>) = 0 [pid 6079] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6079] <... futex resumed>) = 0 [pid 6080] memfd_create("syzkaller", 0 [pid 6079] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6080] <... memfd_create resumed>) = 3 [pid 6080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6080] 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"..., 16777216) = 16777216 [pid 6080] munmap(0x7f3be0600000, 138412032) = 0 [pid 6080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6080] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6080] ioctl(4, LOOP_CLR_FD) = 0 [pid 6080] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6080] close(4) = 0 [pid 6080] close(3) = 0 [pid 6080] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6079] <... futex resumed>) = 0 [pid 6079] exit_group(0 [pid 6080] <... futex resumed>) = ? [pid 6079] <... exit_group resumed>) = ? [pid 6080] +++ exited with 0 +++ [pid 6079] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6079, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6081 attached , child_tidptr=0x55557b776690) = 6081 [pid 6081] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6081] setpgid(0, 0) = 0 [pid 6081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6081] write(3, "1000", 4) = 4 [pid 6081] close(3) = 0 [pid 6081] write(1, "executing program\n", 18executing program ) = 18 [pid 6081] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6081] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6081] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6081] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6082 attached [pid 6082] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6082] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6081] <... clone3 resumed> => {parent_tid=[6082]}, 88) = 6082 [pid 6082] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6081] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 1 [pid 6082] memfd_create("syzkaller", 0 [pid 6081] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6082] <... memfd_create resumed>) = 3 [pid 6082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6082] 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"..., 16777216) = 16777216 [pid 6082] munmap(0x7f3be0600000, 138412032) = 0 [pid 6082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6082] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6082] ioctl(4, LOOP_CLR_FD) = 0 [pid 6082] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6082] close(4) = 0 [pid 6082] close(3) = 0 [pid 6082] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6081] <... futex resumed>) = 0 [pid 6082] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6081] exit_group(0 [pid 6082] <... futex resumed>) = ? [pid 6082] +++ exited with 0 +++ [pid 6081] <... exit_group resumed>) = ? [pid 6081] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6081, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6083 attached , child_tidptr=0x55557b776690) = 6083 [pid 6083] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6083] setpgid(0, 0) = 0 [pid 6083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6083] write(3, "1000", 4) = 4 [pid 6083] close(3) = 0 [pid 6083] write(1, "executing program\n", 18executing program ) = 18 [pid 6083] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6083] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6083] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6083] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6083] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6083] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6084 attached [pid 6084] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6083] <... clone3 resumed> => {parent_tid=[6084]}, 88) = 6084 [pid 6084] <... rseq resumed>) = 0 [pid 6083] rt_sigprocmask(SIG_SETMASK, [], [pid 6084] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6084] <... set_robust_list resumed>) = 0 [pid 6083] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6083] <... futex resumed>) = 0 [pid 6084] memfd_create("syzkaller", 0 [pid 6083] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6084] <... memfd_create resumed>) = 3 [pid 6084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6084] 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"..., 16777216) = 16777216 [pid 6084] munmap(0x7f3be0600000, 138412032) = 0 [pid 6084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6084] ioctl(4, LOOP_CLR_FD) = 0 [pid 6084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6084] close(4) = 0 [pid 6084] close(3) = 0 [pid 6084] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6083] <... futex resumed>) = 0 [pid 6084] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] exit_group(0 [pid 6084] <... futex resumed>) = ? [pid 6083] <... exit_group resumed>) = ? [pid 6084] +++ exited with 0 +++ [pid 6083] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6083, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6085 attached , child_tidptr=0x55557b776690) = 6085 [pid 6085] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6085] setpgid(0, 0) = 0 [pid 6085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6085] write(3, "1000", 4) = 4 [pid 6085] close(3) = 0 [pid 6085] write(1, "executing program\n", 18executing program ) = 18 [pid 6085] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6085] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6085] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6085] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6085] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6085] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6086 attached [pid 6086] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6085] <... clone3 resumed> => {parent_tid=[6086]}, 88) = 6086 [pid 6086] <... rseq resumed>) = 0 [pid 6085] rt_sigprocmask(SIG_SETMASK, [], [pid 6086] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6086] <... set_robust_list resumed>) = 0 [pid 6086] rt_sigprocmask(SIG_SETMASK, [], [pid 6085] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6085] <... futex resumed>) = 0 [pid 6086] memfd_create("syzkaller", 0 [pid 6085] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6086] <... memfd_create resumed>) = 3 [pid 6086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6086] 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"..., 16777216) = 16777216 [pid 6086] munmap(0x7f3be0600000, 138412032) = 0 [pid 6086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6086] ioctl(4, LOOP_CLR_FD) = 0 [pid 6086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6086] close(4) = 0 [pid 6086] close(3) = 0 [pid 6086] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6085] <... futex resumed>) = 0 [pid 6086] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6085] exit_group(0 [pid 6086] <... futex resumed>) = ? [pid 6085] <... exit_group resumed>) = ? [pid 6086] +++ exited with 0 +++ [pid 6085] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6085, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6087 attached , child_tidptr=0x55557b776690) = 6087 [pid 6087] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6087] setpgid(0, 0) = 0 [pid 6087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6087] write(3, "1000", 4) = 4 [pid 6087] close(3) = 0 [pid 6087] write(1, "executing program\n", 18executing program ) = 18 [pid 6087] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6087] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6087] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6088 attached [pid 6088] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6087] <... clone3 resumed> => {parent_tid=[6088]}, 88) = 6088 [pid 6088] <... rseq resumed>) = 0 [pid 6087] rt_sigprocmask(SIG_SETMASK, [], [pid 6088] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6088] <... set_robust_list resumed>) = 0 [pid 6087] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6088] rt_sigprocmask(SIG_SETMASK, [], [pid 6087] <... futex resumed>) = 0 [pid 6088] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6087] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6088] memfd_create("syzkaller", 0) = 3 [pid 6088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6088] 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"..., 16777216) = 16777216 [pid 6088] munmap(0x7f3be0600000, 138412032) = 0 [pid 6088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6088] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6088] ioctl(4, LOOP_CLR_FD) = 0 [pid 6088] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6088] close(4) = 0 [pid 6088] close(3) = 0 [pid 6088] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6088] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6087] <... futex resumed>) = 0 [pid 6087] exit_group(0 [pid 6088] <... futex resumed>) = ? [pid 6087] <... exit_group resumed>) = ? [pid 6088] +++ exited with 0 +++ [pid 6087] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6087, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6089 attached , child_tidptr=0x55557b776690) = 6089 [pid 6089] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6089] setpgid(0, 0) = 0 [pid 6089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6089] write(3, "1000", 4) = 4 [pid 6089] close(3) = 0 [pid 6089] write(1, "executing program\n", 18executing program ) = 18 [pid 6089] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6089] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6089] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6089] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6089] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6089] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6090 attached [pid 6090] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6089] <... clone3 resumed> => {parent_tid=[6090]}, 88) = 6090 [pid 6090] <... rseq resumed>) = 0 [pid 6089] rt_sigprocmask(SIG_SETMASK, [], [pid 6090] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6089] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6090] <... set_robust_list resumed>) = 0 [pid 6090] rt_sigprocmask(SIG_SETMASK, [], [pid 6089] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6090] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6089] <... futex resumed>) = 0 [pid 6090] memfd_create("syzkaller", 0 [pid 6089] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6090] <... memfd_create resumed>) = 3 [pid 6090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6090] 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"..., 16777216) = 16777216 [pid 6090] munmap(0x7f3be0600000, 138412032) = 0 [pid 6090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6090] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6090] ioctl(4, LOOP_CLR_FD) = 0 [pid 6090] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6090] close(4) = 0 [pid 6090] close(3) = 0 [pid 6090] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6089] <... futex resumed>) = 0 [pid 6089] exit_group(0 [pid 6090] <... futex resumed>) = ? [pid 6089] <... exit_group resumed>) = ? [pid 6090] +++ exited with 0 +++ [pid 6089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6089, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6091 attached , child_tidptr=0x55557b776690) = 6091 [pid 6091] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6091] setpgid(0, 0) = 0 [pid 6091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6091] write(3, "1000", 4) = 4 [pid 6091] close(3) = 0 [pid 6091] write(1, "executing program\n", 18executing program ) = 18 [pid 6091] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6091] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6091] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6091] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6091] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6091] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6092 attached [pid 6092] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6091] <... clone3 resumed> => {parent_tid=[6092]}, 88) = 6092 [pid 6092] <... rseq resumed>) = 0 [pid 6091] rt_sigprocmask(SIG_SETMASK, [], [pid 6092] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6091] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6092] <... set_robust_list resumed>) = 0 [pid 6091] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6091] <... futex resumed>) = 0 [pid 6091] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6092] memfd_create("syzkaller", 0) = 3 [pid 6092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6092] 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"..., 16777216) = 16777216 [pid 6092] munmap(0x7f3be0600000, 138412032) = 0 [pid 6092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6092] ioctl(4, LOOP_CLR_FD) = 0 [pid 6092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6092] close(4) = 0 [pid 6092] close(3) = 0 [pid 6092] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6091] <... futex resumed>) = 0 [pid 6092] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6091] exit_group(0) = ? [pid 6092] <... futex resumed>) = ? [pid 6092] +++ exited with 0 +++ [pid 6091] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6091, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6093 attached , child_tidptr=0x55557b776690) = 6093 [pid 6093] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6093] setpgid(0, 0) = 0 [pid 6093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6093] write(3, "1000", 4) = 4 [pid 6093] close(3) = 0 executing program [pid 6093] write(1, "executing program\n", 18) = 18 [pid 6093] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6093] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6093] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6093] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6093] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6093] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6094 attached => {parent_tid=[6094]}, 88) = 6094 [pid 6093] rt_sigprocmask(SIG_SETMASK, [], [pid 6094] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6093] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6094] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6093] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6094] <... set_robust_list resumed>) = 0 [pid 6094] rt_sigprocmask(SIG_SETMASK, [], [pid 6093] <... futex resumed>) = 0 [pid 6094] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6093] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6094] memfd_create("syzkaller", 0) = 3 [pid 6094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6094] 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"..., 16777216) = 16777216 [pid 6094] munmap(0x7f3be0600000, 138412032) = 0 [pid 6094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6094] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6094] ioctl(4, LOOP_CLR_FD) = 0 [pid 6094] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6094] close(4) = 0 [pid 6094] close(3) = 0 [pid 6094] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6094] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6093] <... futex resumed>) = 0 [pid 6093] exit_group(0 [pid 6094] <... futex resumed>) = ? [pid 6093] <... exit_group resumed>) = ? [pid 6094] +++ exited with 0 +++ [pid 6093] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6093, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6095 attached , child_tidptr=0x55557b776690) = 6095 [pid 6095] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6095] setpgid(0, 0) = 0 [pid 6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6095] write(3, "1000", 4) = 4 [pid 6095] close(3) = 0 [pid 6095] write(1, "executing program\n", 18executing program ) = 18 [pid 6095] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6095] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6095] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6096 attached [pid 6096] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6095] <... clone3 resumed> => {parent_tid=[6096]}, 88) = 6096 [pid 6096] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6095] rt_sigprocmask(SIG_SETMASK, [], [pid 6096] rt_sigprocmask(SIG_SETMASK, [], [pid 6095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6096] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6095] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] memfd_create("syzkaller", 0 [pid 6095] <... futex resumed>) = 0 [pid 6096] <... memfd_create resumed>) = 3 [pid 6096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6095] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6096] 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"..., 16777216) = 16777216 [pid 6096] munmap(0x7f3be0600000, 138412032) = 0 [pid 6096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6096] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6096] ioctl(4, LOOP_CLR_FD) = 0 [pid 6096] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6096] close(4) = 0 [pid 6096] close(3) = 0 [pid 6096] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6096] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] exit_group(0 [pid 6096] <... futex resumed>) = ? [pid 6095] <... exit_group resumed>) = ? [pid 6096] +++ exited with 0 +++ [pid 6095] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6095, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6097 attached , child_tidptr=0x55557b776690) = 6097 [pid 6097] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6097] setpgid(0, 0) = 0 [pid 6097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6097] write(3, "1000", 4) = 4 [pid 6097] close(3) = 0 [pid 6097] write(1, "executing program\n", 18executing program ) = 18 [pid 6097] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6097] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6097] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6097] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6097] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6097] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6098 attached [pid 6098] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6097] <... clone3 resumed> => {parent_tid=[6098]}, 88) = 6098 [pid 6098] <... rseq resumed>) = 0 [pid 6097] rt_sigprocmask(SIG_SETMASK, [], [pid 6098] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6098] <... set_robust_list resumed>) = 0 [pid 6098] rt_sigprocmask(SIG_SETMASK, [], [pid 6097] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6097] <... futex resumed>) = 0 [pid 6097] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6098] memfd_create("syzkaller", 0) = 3 [pid 6098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6098] 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"..., 16777216) = 16777216 [pid 6098] munmap(0x7f3be0600000, 138412032) = 0 [pid 6098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6098] ioctl(4, LOOP_CLR_FD) = 0 [pid 6098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6098] close(4) = 0 [pid 6098] close(3) = 0 [pid 6098] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6097] <... futex resumed>) = 0 [pid 6098] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] exit_group(0) = ? [pid 6098] <... futex resumed>) = ? [pid 6098] +++ exited with 0 +++ [pid 6097] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6097, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6099 attached , child_tidptr=0x55557b776690) = 6099 [pid 6099] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6099] setpgid(0, 0) = 0 [pid 6099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6099] write(3, "1000", 4) = 4 [pid 6099] close(3) = 0 [pid 6099] write(1, "executing program\n", 18executing program ) = 18 [pid 6099] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6099] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6099] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6100 attached => {parent_tid=[6100]}, 88) = 6100 [pid 6100] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6099] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6099] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6100] <... rseq resumed>) = 0 [pid 6100] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6100] memfd_create("syzkaller", 0) = 3 [pid 6100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6100] 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"..., 16777216) = 16777216 [pid 6100] munmap(0x7f3be0600000, 138412032) = 0 [pid 6100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6100] ioctl(4, LOOP_CLR_FD) = 0 [pid 6100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6100] close(4) = 0 [pid 6100] close(3) = 0 [pid 6100] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6099] <... futex resumed>) = 0 [pid 6100] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6099] exit_group(0 [pid 6100] <... futex resumed>) = ? [pid 6100] +++ exited with 0 +++ [pid 6099] <... exit_group resumed>) = ? [pid 6099] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6099, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 6101 attached , child_tidptr=0x55557b776690) = 6101 [pid 6101] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6101] setpgid(0, 0) = 0 [pid 6101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6101] write(3, "1000", 4) = 4 [pid 6101] close(3) = 0 executing program [pid 6101] write(1, "executing program\n", 18) = 18 [pid 6101] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6101] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6101] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6101] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6101] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6101] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6102 attached [pid 6102] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6101] <... clone3 resumed> => {parent_tid=[6102]}, 88) = 6102 [pid 6102] <... rseq resumed>) = 0 [pid 6101] rt_sigprocmask(SIG_SETMASK, [], [pid 6102] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6101] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6102] <... set_robust_list resumed>) = 0 [pid 6101] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6101] <... futex resumed>) = 0 [pid 6102] memfd_create("syzkaller", 0 [pid 6101] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6102] <... memfd_create resumed>) = 3 [pid 6102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6102] 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"..., 16777216) = 16777216 [pid 6102] munmap(0x7f3be0600000, 138412032) = 0 [pid 6102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6102] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6102] ioctl(4, LOOP_CLR_FD) = 0 [pid 6102] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6102] close(4) = 0 [pid 6102] close(3) = 0 [pid 6102] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6101] <... futex resumed>) = 0 [pid 6102] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6101] exit_group(0 [pid 6102] <... futex resumed>) = ? [pid 6101] <... exit_group resumed>) = ? [pid 6102] +++ exited with 0 +++ [pid 6101] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6101, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6103 attached , child_tidptr=0x55557b776690) = 6103 [pid 6103] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6103] setpgid(0, 0) = 0 [pid 6103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6103] write(3, "1000", 4) = 4 [pid 6103] close(3) = 0 executing program [pid 6103] write(1, "executing program\n", 18) = 18 [pid 6103] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6103] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6103] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6103] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6103] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6103] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6104 attached [pid 6104] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6103] <... clone3 resumed> => {parent_tid=[6104]}, 88) = 6104 [pid 6104] <... rseq resumed>) = 0 [pid 6103] rt_sigprocmask(SIG_SETMASK, [], [pid 6104] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6103] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6103] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6104] <... set_robust_list resumed>) = 0 [pid 6104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6104] memfd_create("syzkaller", 0) = 3 [pid 6104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6104] 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"..., 16777216) = 16777216 [pid 6104] munmap(0x7f3be0600000, 138412032) = 0 [pid 6104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6104] ioctl(4, LOOP_CLR_FD) = 0 [pid 6104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6104] close(4) = 0 [pid 6104] close(3) = 0 [pid 6104] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6104] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6103] <... futex resumed>) = 0 [pid 6103] exit_group(0) = ? [pid 6104] <... futex resumed>) = ? [pid 6104] +++ exited with 0 +++ [pid 6103] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6103, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6105 attached , child_tidptr=0x55557b776690) = 6105 [pid 6105] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6105] setpgid(0, 0) = 0 [pid 6105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6105] write(3, "1000", 4) = 4 [pid 6105] close(3) = 0 executing program [pid 6105] write(1, "executing program\n", 18) = 18 [pid 6105] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6105] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6105] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6105] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6105] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6106 attached [pid 6106] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6105] <... clone3 resumed> => {parent_tid=[6106]}, 88) = 6106 [pid 6106] <... rseq resumed>) = 0 [pid 6105] rt_sigprocmask(SIG_SETMASK, [], [pid 6106] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6106] <... set_robust_list resumed>) = 0 [pid 6105] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6105] <... futex resumed>) = 0 [pid 6106] memfd_create("syzkaller", 0 [pid 6105] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6106] <... memfd_create resumed>) = 3 [pid 6106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6106] 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"..., 16777216) = 16777216 [pid 6106] munmap(0x7f3be0600000, 138412032) = 0 [pid 6106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6106] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6106] ioctl(4, LOOP_CLR_FD) = 0 [pid 6106] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6106] close(4) = 0 [pid 6106] close(3) = 0 [pid 6106] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6105] <... futex resumed>) = 0 [pid 6106] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6105] exit_group(0 [pid 6106] <... futex resumed>) = ? [pid 6106] +++ exited with 0 +++ [pid 6105] <... exit_group resumed>) = ? [pid 6105] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6105, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6107 attached , child_tidptr=0x55557b776690) = 6107 [pid 6107] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6107] setpgid(0, 0) = 0 [pid 6107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6107] write(3, "1000", 4) = 4 [pid 6107] close(3) = 0 executing program [pid 6107] write(1, "executing program\n", 18) = 18 [pid 6107] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6107] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6107] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6107] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6107] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6107] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6108 attached => {parent_tid=[6108]}, 88) = 6108 [pid 6107] rt_sigprocmask(SIG_SETMASK, [], [pid 6108] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6107] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6108] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6107] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6108] <... set_robust_list resumed>) = 0 [pid 6107] <... futex resumed>) = 0 [pid 6108] rt_sigprocmask(SIG_SETMASK, [], [pid 6107] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6108] memfd_create("syzkaller", 0) = 3 [pid 6108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6108] 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"..., 16777216) = 16777216 [pid 6108] munmap(0x7f3be0600000, 138412032) = 0 [pid 6108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6108] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6108] ioctl(4, LOOP_CLR_FD) = 0 [pid 6108] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6108] close(4) = 0 [pid 6108] close(3) = 0 [pid 6108] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6107] <... futex resumed>) = 0 [pid 6108] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6107] exit_group(0 [pid 6108] <... futex resumed>) = ? [pid 6107] <... exit_group resumed>) = ? [pid 6108] +++ exited with 0 +++ [pid 6107] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6107, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6109 attached , child_tidptr=0x55557b776690) = 6109 [pid 6109] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6109] setpgid(0, 0) = 0 [pid 6109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6109] write(3, "1000", 4) = 4 [pid 6109] close(3) = 0 executing program [pid 6109] write(1, "executing program\n", 18) = 18 [pid 6109] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6109] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6109] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6109] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6109] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6109] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6110 attached [pid 6110] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6109] <... clone3 resumed> => {parent_tid=[6110]}, 88) = 6110 [pid 6110] <... rseq resumed>) = 0 [pid 6109] rt_sigprocmask(SIG_SETMASK, [], [pid 6110] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6109] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6110] <... set_robust_list resumed>) = 0 [pid 6109] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6110] rt_sigprocmask(SIG_SETMASK, [], [pid 6109] <... futex resumed>) = 0 [pid 6110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6110] memfd_create("syzkaller", 0 [pid 6109] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6110] <... memfd_create resumed>) = 3 [pid 6110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6110] 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"..., 16777216) = 16777216 [pid 6110] munmap(0x7f3be0600000, 138412032) = 0 [pid 6110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6110] ioctl(4, LOOP_CLR_FD) = 0 [pid 6110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6110] close(4) = 0 [pid 6110] close(3) = 0 [pid 6110] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6109] <... futex resumed>) = 0 [pid 6109] exit_group(0 [pid 6110] <... futex resumed>) = ? [pid 6109] <... exit_group resumed>) = ? [pid 6110] +++ exited with 0 +++ [pid 6109] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6109, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6111 attached , child_tidptr=0x55557b776690) = 6111 [pid 6111] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6111] setpgid(0, 0) = 0 [pid 6111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6111] write(3, "1000", 4) = 4 [pid 6111] close(3executing program ) = 0 [pid 6111] write(1, "executing program\n", 18) = 18 [pid 6111] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6111] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6111] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6111] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6111] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6112 attached [pid 6112] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6111] <... clone3 resumed> => {parent_tid=[6112]}, 88) = 6112 [pid 6112] <... rseq resumed>) = 0 [pid 6111] rt_sigprocmask(SIG_SETMASK, [], [pid 6112] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6111] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6112] <... set_robust_list resumed>) = 0 [pid 6111] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6111] <... futex resumed>) = 0 [pid 6112] memfd_create("syzkaller", 0 [pid 6111] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6112] <... memfd_create resumed>) = 3 [pid 6112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6112] 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"..., 16777216) = 16777216 [pid 6112] munmap(0x7f3be0600000, 138412032) = 0 [pid 6112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6112] ioctl(4, LOOP_CLR_FD) = 0 [pid 6112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6112] close(4) = 0 [pid 6112] close(3) = 0 [pid 6112] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] <... futex resumed>) = 0 [pid 6111] exit_group(0 [pid 6112] <... futex resumed>) = ? [pid 6111] <... exit_group resumed>) = ? [pid 6112] +++ exited with 0 +++ [pid 6111] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6111, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6113 attached , child_tidptr=0x55557b776690) = 6113 [pid 6113] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6113] setpgid(0, 0) = 0 [pid 6113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6113] write(3, "1000", 4) = 4 [pid 6113] close(3) = 0 executing program [pid 6113] write(1, "executing program\n", 18) = 18 [pid 6113] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6113] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6113] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6113] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6113] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6113] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6114 attached [pid 6114] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6113] <... clone3 resumed> => {parent_tid=[6114]}, 88) = 6114 [pid 6114] <... rseq resumed>) = 0 [pid 6113] rt_sigprocmask(SIG_SETMASK, [], [pid 6114] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6113] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6114] <... set_robust_list resumed>) = 0 [pid 6114] rt_sigprocmask(SIG_SETMASK, [], [pid 6113] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6113] <... futex resumed>) = 0 [pid 6114] memfd_create("syzkaller", 0 [pid 6113] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6114] <... memfd_create resumed>) = 3 [pid 6114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6114] 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"..., 16777216) = 16777216 [pid 6114] munmap(0x7f3be0600000, 138412032) = 0 [pid 6114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6114] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6114] ioctl(4, LOOP_CLR_FD) = 0 [pid 6114] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6114] close(4) = 0 [pid 6114] close(3) = 0 [pid 6114] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6113] <... futex resumed>) = 0 [pid 6114] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6113] exit_group(0 [pid 6114] <... futex resumed>) = ? [pid 6114] +++ exited with 0 +++ [pid 6113] <... exit_group resumed>) = ? [pid 6113] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6113, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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=0x55557b776690) = 6115 ./strace-static-x86_64: Process 6115 attached [pid 6115] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6115] setpgid(0, 0) = 0 [pid 6115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6115] write(3, "1000", 4) = 4 [pid 6115] close(3) = 0 executing program [pid 6115] write(1, "executing program\n", 18) = 18 [pid 6115] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6115] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6115] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6115] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6115] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6115] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6116 attached => {parent_tid=[6116]}, 88) = 6116 [pid 6115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6115] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6116] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6115] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6116] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6116] memfd_create("syzkaller", 0) = 3 [pid 6116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6116] 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"..., 16777216) = 16777216 [pid 6116] munmap(0x7f3be0600000, 138412032) = 0 [pid 6116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6116] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6116] ioctl(4, LOOP_CLR_FD) = 0 [pid 6116] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6116] close(4) = 0 [pid 6116] close(3) = 0 [pid 6116] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6116] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6115] <... futex resumed>) = 0 [pid 6115] exit_group(0) = ? [pid 6116] <... futex resumed>) = ? [pid 6116] +++ exited with 0 +++ [pid 6115] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6115, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6117 attached , child_tidptr=0x55557b776690) = 6117 [pid 6117] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6117] setpgid(0, 0) = 0 [pid 6117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6117] write(3, "1000", 4) = 4 [pid 6117] close(3) = 0 executing program [pid 6117] write(1, "executing program\n", 18) = 18 [pid 6117] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6117] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6117] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6117] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6117] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6118 attached => {parent_tid=[6118]}, 88) = 6118 [pid 6117] rt_sigprocmask(SIG_SETMASK, [], [pid 6118] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6117] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6118] <... rseq resumed>) = 0 [pid 6118] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6117] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6117] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6118] memfd_create("syzkaller", 0) = 3 [pid 6118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6118] 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"..., 16777216) = 16777216 [pid 6118] munmap(0x7f3be0600000, 138412032) = 0 [pid 6118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6118] ioctl(4, LOOP_CLR_FD) = 0 [pid 6118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6118] close(4) = 0 [pid 6118] close(3) = 0 [pid 6118] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6117] <... futex resumed>) = 0 [pid 6118] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6117] exit_group(0 [pid 6118] <... futex resumed>) = ? [pid 6118] +++ exited with 0 +++ [pid 6117] <... exit_group resumed>) = ? [pid 6117] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6117, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6119 attached , child_tidptr=0x55557b776690) = 6119 [pid 6119] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6119] setpgid(0, 0) = 0 [pid 6119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6119] write(3, "1000", 4) = 4 [pid 6119] close(3) = 0 [pid 6119] write(1, "executing program\n", 18executing program ) = 18 [pid 6119] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6119] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6119] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6119] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6119] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6119] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6120 attached [pid 6120] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6119] <... clone3 resumed> => {parent_tid=[6120]}, 88) = 6120 [pid 6120] <... rseq resumed>) = 0 [pid 6119] rt_sigprocmask(SIG_SETMASK, [], [pid 6120] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6119] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6120] <... set_robust_list resumed>) = 0 [pid 6119] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] rt_sigprocmask(SIG_SETMASK, [], [pid 6119] <... futex resumed>) = 0 [pid 6120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6119] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6120] memfd_create("syzkaller", 0) = 3 [pid 6120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6120] 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"..., 16777216) = 16777216 [pid 6120] munmap(0x7f3be0600000, 138412032) = 0 [pid 6120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6120] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6120] ioctl(4, LOOP_CLR_FD) = 0 [pid 6120] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6120] close(4) = 0 [pid 6120] close(3) = 0 [pid 6120] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6119] <... futex resumed>) = 0 [pid 6120] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6119] exit_group(0 [pid 6120] <... futex resumed>) = ? [pid 6119] <... exit_group resumed>) = ? [pid 6120] +++ exited with 0 +++ [pid 6119] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6119, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6121 attached , child_tidptr=0x55557b776690) = 6121 [pid 6121] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6121] setpgid(0, 0) = 0 [pid 6121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6121] write(3, "1000", 4) = 4 [pid 6121] close(3) = 0 [pid 6121] write(1, "executing program\n", 18executing program ) = 18 [pid 6121] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6121] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6121] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6121] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6121] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6122 attached [pid 6122] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6121] <... clone3 resumed> => {parent_tid=[6122]}, 88) = 6122 [pid 6122] <... rseq resumed>) = 0 [pid 6121] rt_sigprocmask(SIG_SETMASK, [], [pid 6122] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6122] <... set_robust_list resumed>) = 0 [pid 6121] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6122] memfd_create("syzkaller", 0) = 3 [pid 6122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6121] <... futex resumed>) = 0 [pid 6121] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6122] 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"..., 16777216) = 16777216 [pid 6122] munmap(0x7f3be0600000, 138412032) = 0 [pid 6122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6122] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6122] ioctl(4, LOOP_CLR_FD) = 0 [pid 6122] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6122] close(4) = 0 [pid 6122] close(3) = 0 [pid 6122] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6122] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] <... futex resumed>) = 0 [pid 6121] exit_group(0 [pid 6122] <... futex resumed>) = ? [pid 6121] <... exit_group resumed>) = ? [pid 6122] +++ exited with 0 +++ [pid 6121] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6121, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6123 attached , child_tidptr=0x55557b776690) = 6123 [pid 6123] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6123] setpgid(0, 0) = 0 [pid 6123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6123] write(3, "1000", 4) = 4 [pid 6123] close(3) = 0 [pid 6123] write(1, "executing program\n", 18executing program ) = 18 [pid 6123] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6123] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6123] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6123] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6123] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6124 attached => {parent_tid=[6124]}, 88) = 6124 [pid 6123] rt_sigprocmask(SIG_SETMASK, [], [pid 6124] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6124] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6123] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6124] <... set_robust_list resumed>) = 0 [pid 6123] <... futex resumed>) = 0 [pid 6124] rt_sigprocmask(SIG_SETMASK, [], [pid 6123] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6124] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6124] memfd_create("syzkaller", 0) = 3 [pid 6124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6124] 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"..., 16777216) = 16777216 [pid 6124] munmap(0x7f3be0600000, 138412032) = 0 [pid 6124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6124] ioctl(4, LOOP_CLR_FD) = 0 [pid 6124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6124] close(4) = 0 [pid 6124] close(3) = 0 [pid 6124] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6123] <... futex resumed>) = 0 [pid 6124] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6123] exit_group(0) = ? [pid 6124] <... futex resumed>) = ? [pid 6124] +++ exited with 0 +++ [pid 6123] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6123, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6125 attached , child_tidptr=0x55557b776690) = 6125 [pid 6125] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6125] setpgid(0, 0) = 0 [pid 6125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6125] write(3, "1000", 4) = 4 [pid 6125] close(3) = 0 [pid 6125] write(1, "executing program\n", 18executing program ) = 18 [pid 6125] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6125] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6125] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6125] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6125] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6125] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6126 attached [pid 6126] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6125] <... clone3 resumed> => {parent_tid=[6126]}, 88) = 6126 [pid 6126] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6125] rt_sigprocmask(SIG_SETMASK, [], [pid 6126] <... set_robust_list resumed>) = 0 [pid 6125] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6126] rt_sigprocmask(SIG_SETMASK, [], [pid 6125] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6126] memfd_create("syzkaller", 0 [pid 6125] <... futex resumed>) = 0 [pid 6125] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6126] <... memfd_create resumed>) = 3 [pid 6126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6126] 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"..., 16777216) = 16777216 [pid 6126] munmap(0x7f3be0600000, 138412032) = 0 [pid 6126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6126] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6126] ioctl(4, LOOP_CLR_FD) = 0 [pid 6126] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6126] close(4) = 0 [pid 6126] close(3) = 0 [pid 6126] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] <... futex resumed>) = 0 [pid 6126] <... futex resumed>) = 1 [pid 6125] exit_group(0 [pid 6126] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6125] <... exit_group resumed>) = ? [pid 6126] <... futex resumed>) = ? [pid 6126] +++ exited with 0 +++ [pid 6125] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6125, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6127 attached , child_tidptr=0x55557b776690) = 6127 [pid 6127] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6127] setpgid(0, 0) = 0 [pid 6127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6127] write(3, "1000", 4) = 4 [pid 6127] close(3) = 0 executing program [pid 6127] write(1, "executing program\n", 18) = 18 [pid 6127] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6127] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6127] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6127] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6127] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6127] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6128 attached [pid 6128] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6127] <... clone3 resumed> => {parent_tid=[6128]}, 88) = 6128 [pid 6128] <... rseq resumed>) = 0 [pid 6127] rt_sigprocmask(SIG_SETMASK, [], [pid 6128] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6127] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6128] <... set_robust_list resumed>) = 0 [pid 6127] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6128] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6127] <... futex resumed>) = 0 [pid 6128] memfd_create("syzkaller", 0 [pid 6127] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6128] <... memfd_create resumed>) = 3 [pid 6128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6128] 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"..., 16777216) = 16777216 [pid 6128] munmap(0x7f3be0600000, 138412032) = 0 [pid 6128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6128] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6128] ioctl(4, LOOP_CLR_FD) = 0 [pid 6128] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6128] close(4) = 0 [pid 6128] close(3) = 0 [pid 6128] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6127] <... futex resumed>) = 0 [pid 6128] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6127] exit_group(0 [pid 6128] <... futex resumed>) = ? [pid 6127] <... exit_group resumed>) = ? [pid 6128] +++ exited with 0 +++ [pid 6127] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6127, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6129 attached , child_tidptr=0x55557b776690) = 6129 [pid 6129] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6129] setpgid(0, 0) = 0 [pid 6129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6129] write(3, "1000", 4) = 4 [pid 6129] close(3) = 0 executing program [pid 6129] write(1, "executing program\n", 18) = 18 [pid 6129] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6129] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6129] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6129] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6129] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6129] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6130 attached => {parent_tid=[6130]}, 88) = 6130 [pid 6130] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6130] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6130] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6129] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6130] <... futex resumed>) = 0 [pid 6129] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6130] memfd_create("syzkaller", 0) = 3 [pid 6130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6130] 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"..., 16777216) = 16777216 [pid 6130] munmap(0x7f3be0600000, 138412032) = 0 [pid 6130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6130] ioctl(4, LOOP_CLR_FD) = 0 [pid 6130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6130] close(4) = 0 [pid 6130] close(3) = 0 [pid 6130] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6129] <... futex resumed>) = 0 [pid 6130] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6129] exit_group(0 [pid 6130] <... futex resumed>) = ? [pid 6130] +++ exited with 0 +++ [pid 6129] <... exit_group resumed>) = ? [pid 6129] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6129, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6131 attached , child_tidptr=0x55557b776690) = 6131 [pid 6131] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6131] setpgid(0, 0) = 0 [pid 6131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6131] write(3, "1000", 4) = 4 [pid 6131] close(3) = 0 [pid 6131] write(1, "executing program\n", 18executing program ) = 18 [pid 6131] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6131] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6131] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6131] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6131] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6131] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6132 attached [pid 6132] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6132] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6131] <... clone3 resumed> => {parent_tid=[6132]}, 88) = 6132 [pid 6132] rt_sigprocmask(SIG_SETMASK, [], [pid 6131] rt_sigprocmask(SIG_SETMASK, [], [pid 6132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6132] memfd_create("syzkaller", 0 [pid 6131] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6131] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6132] <... memfd_create resumed>) = 3 [pid 6132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6132] 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"..., 16777216) = 16777216 [pid 6132] munmap(0x7f3be0600000, 138412032) = 0 [pid 6132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6132] ioctl(4, LOOP_CLR_FD) = 0 [pid 6132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6132] close(4) = 0 [pid 6132] close(3) = 0 [pid 6132] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... futex resumed>) = 0 [pid 6131] exit_group(0 [pid 6132] <... futex resumed>) = ? [pid 6131] <... exit_group resumed>) = ? [pid 6132] +++ exited with 0 +++ [pid 6131] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6131, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 6133 attached , child_tidptr=0x55557b776690) = 6133 [pid 6133] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6133] setpgid(0, 0) = 0 [pid 6133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6133] write(3, "1000", 4) = 4 [pid 6133] close(3) = 0 [pid 6133] write(1, "executing program\n", 18executing program ) = 18 [pid 6133] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6133] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6133] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6133] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6133] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6133] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6133] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6134 attached [pid 6134] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6133] <... clone3 resumed> => {parent_tid=[6134]}, 88) = 6134 [pid 6134] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6133] rt_sigprocmask(SIG_SETMASK, [], [pid 6134] <... set_robust_list resumed>) = 0 [pid 6133] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6134] rt_sigprocmask(SIG_SETMASK, [], [pid 6133] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6134] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6133] <... futex resumed>) = 0 [pid 6134] memfd_create("syzkaller", 0 [pid 6133] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6134] <... memfd_create resumed>) = 3 [pid 6134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6134] 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"..., 16777216) = 16777216 [pid 6134] munmap(0x7f3be0600000, 138412032) = 0 [pid 6134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6134] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6134] ioctl(4, LOOP_CLR_FD) = 0 [pid 6134] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6134] close(4) = 0 [pid 6134] close(3) = 0 [pid 6134] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6133] <... futex resumed>) = 0 [pid 6133] exit_group(0 [pid 6134] <... futex resumed>) = ? [pid 6133] <... exit_group resumed>) = ? [pid 6134] +++ exited with 0 +++ [pid 6133] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6133, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 6135 attached , child_tidptr=0x55557b776690) = 6135 [pid 6135] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6135] setpgid(0, 0) = 0 [pid 6135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6135] write(3, "1000", 4) = 4 [pid 6135] close(3) = 0 executing program [pid 6135] write(1, "executing program\n", 18) = 18 [pid 6135] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6135] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6135] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6135] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6135] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6136 attached => {parent_tid=[6136]}, 88) = 6136 [pid 6135] rt_sigprocmask(SIG_SETMASK, [], [pid 6136] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6135] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6136] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6135] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] <... set_robust_list resumed>) = 0 [pid 6135] <... futex resumed>) = 0 [pid 6136] rt_sigprocmask(SIG_SETMASK, [], [pid 6135] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6136] memfd_create("syzkaller", 0) = 3 [pid 6136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6136] 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"..., 16777216) = 16777216 [pid 6136] munmap(0x7f3be0600000, 138412032) = 0 [pid 6136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6136] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6136] ioctl(4, LOOP_CLR_FD) = 0 [pid 6136] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6136] close(4) = 0 [pid 6136] close(3) = 0 [pid 6136] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6135] <... futex resumed>) = 0 [pid 6136] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6135] exit_group(0 [pid 6136] <... futex resumed>) = ? [pid 6135] <... exit_group resumed>) = ? [pid 6136] +++ exited with 0 +++ [pid 6135] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6135, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=19 /* 0.19 s */} --- 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 6137 attached [pid 6137] set_robust_list(0x55557b7766a0, 24 [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 6137 [pid 6137] <... set_robust_list resumed>) = 0 [pid 6137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6137] setpgid(0, 0) = 0 [pid 6137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6137] write(3, "1000", 4executing program ) = 4 [pid 6137] close(3) = 0 [pid 6137] write(1, "executing program\n", 18) = 18 [pid 6137] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6137] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6137] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6137] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6137] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6137] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6138 attached [pid 6138] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6137] <... clone3 resumed> => {parent_tid=[6138]}, 88) = 6138 [pid 6138] <... rseq resumed>) = 0 [pid 6138] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6138] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6137] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6138] <... futex resumed>) = 0 [pid 6137] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6138] memfd_create("syzkaller", 0) = 3 [pid 6138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6138] 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"..., 16777216) = 16777216 [pid 6138] munmap(0x7f3be0600000, 138412032) = 0 [pid 6138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6138] ioctl(4, LOOP_CLR_FD) = 0 [pid 6138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6138] close(4) = 0 [pid 6138] close(3) = 0 [pid 6138] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6138] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6137] <... futex resumed>) = 0 [pid 6137] exit_group(0 [pid 6138] <... futex resumed>) = ? [pid 6137] <... exit_group resumed>) = ? [pid 6138] +++ exited with 0 +++ [pid 6137] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6137, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6139 attached , child_tidptr=0x55557b776690) = 6139 [pid 6139] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6139] setpgid(0, 0) = 0 [pid 6139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6139] write(3, "1000", 4) = 4 [pid 6139] close(3) = 0 [pid 6139] write(1, "executing program\n", 18executing program ) = 18 [pid 6139] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6139] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6139] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6139] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6139] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6139] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6140 attached => {parent_tid=[6140]}, 88) = 6140 [pid 6139] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6140] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6139] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6139] <... futex resumed>) = 0 [pid 6140] <... set_robust_list resumed>) = 0 [pid 6140] rt_sigprocmask(SIG_SETMASK, [], [pid 6139] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6140] memfd_create("syzkaller", 0) = 3 [pid 6140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6140] 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"..., 16777216) = 16777216 [pid 6140] munmap(0x7f3be0600000, 138412032) = 0 [pid 6140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6140] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6140] ioctl(4, LOOP_CLR_FD) = 0 [pid 6140] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6140] close(4) = 0 [pid 6140] close(3) = 0 [pid 6140] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6140] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6139] <... futex resumed>) = 0 [pid 6139] exit_group(0 [pid 6140] <... futex resumed>) = ? [pid 6139] <... exit_group resumed>) = ? [pid 6140] +++ exited with 0 +++ [pid 6139] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6139, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6141 attached , child_tidptr=0x55557b776690) = 6141 [pid 6141] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6141] setpgid(0, 0) = 0 [pid 6141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6141] write(3, "1000", 4) = 4 [pid 6141] close(3) = 0 [pid 6141] write(1, "executing program\n", 18executing program ) = 18 [pid 6141] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6141] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6141] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6141] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6142 attached [pid 6142] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6141] <... clone3 resumed> => {parent_tid=[6142]}, 88) = 6142 [pid 6142] <... rseq resumed>) = 0 [pid 6141] rt_sigprocmask(SIG_SETMASK, [], [pid 6142] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6142] <... set_robust_list resumed>) = 0 [pid 6141] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] rt_sigprocmask(SIG_SETMASK, [], [pid 6141] <... futex resumed>) = 0 [pid 6142] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6141] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6142] memfd_create("syzkaller", 0) = 3 [pid 6142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6142] 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"..., 16777216) = 16777216 [pid 6142] munmap(0x7f3be0600000, 138412032) = 0 [pid 6142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6142] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6142] ioctl(4, LOOP_CLR_FD) = 0 [pid 6142] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6142] close(4) = 0 [pid 6142] close(3) = 0 [pid 6142] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6141] <... futex resumed>) = 0 [pid 6142] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6141] exit_group(0) = ? [pid 6142] <... futex resumed>) = ? [pid 6142] +++ exited with 0 +++ [pid 6141] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6141, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6143 attached , child_tidptr=0x55557b776690) = 6143 [pid 6143] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6143] setpgid(0, 0) = 0 [pid 6143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6143] write(3, "1000", 4) = 4 [pid 6143] close(3) = 0 executing program [pid 6143] write(1, "executing program\n", 18) = 18 [pid 6143] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6143] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6143] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6143] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6143] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6143] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6144 attached => {parent_tid=[6144]}, 88) = 6144 [pid 6143] rt_sigprocmask(SIG_SETMASK, [], [pid 6144] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6143] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6143] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6143] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6144] <... rseq resumed>) = 0 [pid 6144] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6144] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6144] memfd_create("syzkaller", 0) = 3 [pid 6144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6144] 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"..., 16777216) = 16777216 [pid 6144] munmap(0x7f3be0600000, 138412032) = 0 [pid 6144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6144] ioctl(4, LOOP_CLR_FD) = 0 [pid 6144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6144] close(4) = 0 [pid 6144] close(3) = 0 [pid 6144] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... futex resumed>) = 0 [pid 6144] <... futex resumed>) = 1 [pid 6143] exit_group(0 [pid 6144] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6143] <... exit_group resumed>) = ? [pid 6144] +++ exited with 0 +++ [pid 6143] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6143, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6145 attached , child_tidptr=0x55557b776690) = 6145 [pid 6145] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6145] setpgid(0, 0) = 0 [pid 6145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6145] write(3, "1000", 4) = 4 [pid 6145] close(3) = 0 executing program [pid 6145] write(1, "executing program\n", 18) = 18 [pid 6145] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6145] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6145] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6145] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6145] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6145] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6146 attached [pid 6146] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6145] <... clone3 resumed> => {parent_tid=[6146]}, 88) = 6146 [pid 6146] <... rseq resumed>) = 0 [pid 6146] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6145] rt_sigprocmask(SIG_SETMASK, [], [pid 6146] <... set_robust_list resumed>) = 0 [pid 6145] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6146] rt_sigprocmask(SIG_SETMASK, [], [pid 6145] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6146] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6145] <... futex resumed>) = 0 [pid 6146] memfd_create("syzkaller", 0 [pid 6145] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6146] <... memfd_create resumed>) = 3 [pid 6146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6146] 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"..., 16777216) = 16777216 [pid 6146] munmap(0x7f3be0600000, 138412032) = 0 [pid 6146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6146] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6146] ioctl(4, LOOP_CLR_FD) = 0 [pid 6146] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6146] close(4) = 0 [pid 6146] close(3) = 0 [pid 6146] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6145] <... futex resumed>) = 0 [pid 6146] <... futex resumed>) = 1 [pid 6145] exit_group(0 [pid 6146] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6145] <... exit_group resumed>) = ? [pid 6146] +++ exited with 0 +++ [pid 6145] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6145, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6147 attached , child_tidptr=0x55557b776690) = 6147 [pid 6147] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6147] setpgid(0, 0) = 0 [pid 6147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6147] write(3, "1000", 4) = 4 [pid 6147] close(3) = 0 executing program [pid 6147] write(1, "executing program\n", 18) = 18 [pid 6147] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6147] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6147] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6147] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6148 attached [pid 6148] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6147] <... clone3 resumed> => {parent_tid=[6148]}, 88) = 6148 [pid 6148] <... rseq resumed>) = 0 [pid 6147] rt_sigprocmask(SIG_SETMASK, [], [pid 6148] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6148] <... set_robust_list resumed>) = 0 [pid 6147] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] rt_sigprocmask(SIG_SETMASK, [], [pid 6147] <... futex resumed>) = 0 [pid 6148] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6147] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6148] memfd_create("syzkaller", 0) = 3 [pid 6148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6148] 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"..., 16777216) = 16777216 [pid 6148] munmap(0x7f3be0600000, 138412032) = 0 [pid 6148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6148] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6148] ioctl(4, LOOP_CLR_FD) = 0 [pid 6148] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6148] close(4) = 0 [pid 6148] close(3) = 0 [pid 6148] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6148] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6147] <... futex resumed>) = 0 [pid 6147] exit_group(0 [pid 6148] <... futex resumed>) = ? [pid 6147] <... exit_group resumed>) = ? [pid 6148] +++ exited with 0 +++ [pid 6147] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6147, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6149 attached , child_tidptr=0x55557b776690) = 6149 [pid 6149] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6149] setpgid(0, 0) = 0 [pid 6149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6149] write(3, "1000", 4) = 4 [pid 6149] close(3) = 0 [pid 6149] write(1, "executing program\n", 18executing program ) = 18 [pid 6149] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6149] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6149] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6149] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6149] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6149] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6150 attached [pid 6150] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6150] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6150] rt_sigprocmask(SIG_SETMASK, [], [pid 6149] <... clone3 resumed> => {parent_tid=[6150]}, 88) = 6150 [pid 6150] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6149] rt_sigprocmask(SIG_SETMASK, [], [pid 6150] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6149] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6149] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] <... futex resumed>) = 0 [pid 6149] <... futex resumed>) = 1 [pid 6149] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6150] memfd_create("syzkaller", 0) = 3 [pid 6150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6150] 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"..., 16777216) = 16777216 [pid 6150] munmap(0x7f3be0600000, 138412032) = 0 [pid 6150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6150] ioctl(4, LOOP_CLR_FD) = 0 [pid 6150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6150] close(4) = 0 [pid 6150] close(3) = 0 [pid 6150] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6149] <... futex resumed>) = 0 [pid 6150] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6149] exit_group(0 [pid 6150] <... futex resumed>) = ? [pid 6150] +++ exited with 0 +++ [pid 6149] <... exit_group resumed>) = ? [pid 6149] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6149, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6151 attached , child_tidptr=0x55557b776690) = 6151 [pid 6151] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6151] setpgid(0, 0) = 0 [pid 6151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6151] write(3, "1000", 4) = 4 [pid 6151] close(3) = 0 [pid 6151] write(1, "executing program\n", 18executing program ) = 18 [pid 6151] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6151] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6151] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6151] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6151] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6151] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6152 attached [pid 6152] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6152] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6151] <... clone3 resumed> => {parent_tid=[6152]}, 88) = 6152 [pid 6152] rt_sigprocmask(SIG_SETMASK, [], [pid 6151] rt_sigprocmask(SIG_SETMASK, [], [pid 6152] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6151] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6152] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6151] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6151] <... futex resumed>) = 0 [pid 6152] memfd_create("syzkaller", 0 [pid 6151] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6152] <... memfd_create resumed>) = 3 [pid 6152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6152] 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"..., 16777216) = 16777216 [pid 6152] munmap(0x7f3be0600000, 138412032) = 0 [pid 6152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6152] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6152] ioctl(4, LOOP_CLR_FD) = 0 [pid 6152] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6152] close(4) = 0 [pid 6152] close(3) = 0 [pid 6152] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6152] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6151] <... futex resumed>) = 0 [pid 6151] exit_group(0 [pid 6152] <... futex resumed>) = ? [pid 6151] <... exit_group resumed>) = ? [pid 6152] +++ exited with 0 +++ [pid 6151] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6151, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6153 attached , child_tidptr=0x55557b776690) = 6153 [pid 6153] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6153] setpgid(0, 0) = 0 [pid 6153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6153] write(3, "1000", 4) = 4 [pid 6153] close(3) = 0 [pid 6153] write(1, "executing program\n", 18executing program ) = 18 [pid 6153] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6153] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6153] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6153] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6153] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6154 attached => {parent_tid=[6154]}, 88) = 6154 [pid 6153] rt_sigprocmask(SIG_SETMASK, [], [pid 6154] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6153] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6154] <... rseq resumed>) = 0 [pid 6153] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6154] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6154] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6154] memfd_create("syzkaller", 0) = 3 [pid 6154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6154] 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"..., 16777216) = 16777216 [pid 6154] munmap(0x7f3be0600000, 138412032) = 0 [pid 6154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6154] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6154] ioctl(4, LOOP_CLR_FD) = 0 [pid 6154] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6154] close(4) = 0 [pid 6154] close(3) = 0 [pid 6154] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6153] <... futex resumed>) = 0 [pid 6154] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6153] exit_group(0 [pid 6154] <... futex resumed>) = ? [pid 6153] <... exit_group resumed>) = ? [pid 6154] +++ exited with 0 +++ [pid 6153] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6153, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 6155 attached , child_tidptr=0x55557b776690) = 6155 [pid 6155] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6155] setpgid(0, 0) = 0 [pid 6155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6155] write(3, "1000", 4) = 4 [pid 6155] close(3) = 0 [pid 6155] write(1, "executing program\n", 18executing program ) = 18 [pid 6155] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6155] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6155] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6155] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6155] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6155] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6156 attached [pid 6156] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6155] <... clone3 resumed> => {parent_tid=[6156]}, 88) = 6156 [pid 6156] <... rseq resumed>) = 0 [pid 6155] rt_sigprocmask(SIG_SETMASK, [], [pid 6156] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6156] <... set_robust_list resumed>) = 0 [pid 6155] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6156] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6155] <... futex resumed>) = 0 [pid 6156] memfd_create("syzkaller", 0 [pid 6155] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6156] <... memfd_create resumed>) = 3 [pid 6156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6156] 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"..., 16777216) = 16777216 [pid 6156] munmap(0x7f3be0600000, 138412032) = 0 [pid 6156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6156] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6156] ioctl(4, LOOP_CLR_FD) = 0 [pid 6156] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6156] close(4) = 0 [pid 6156] close(3) = 0 [pid 6156] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6156] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] exit_group(0) = ? [pid 6156] <... futex resumed>) = ? [pid 6156] +++ exited with 0 +++ [pid 6155] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6155, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6157 attached , child_tidptr=0x55557b776690) = 6157 [pid 6157] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6157] setpgid(0, 0) = 0 [pid 6157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6157] write(3, "1000", 4) = 4 [pid 6157] close(3) = 0 executing program [pid 6157] write(1, "executing program\n", 18) = 18 [pid 6157] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6157] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6157] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6157] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6157] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6158 attached [pid 6158] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6157] <... clone3 resumed> => {parent_tid=[6158]}, 88) = 6158 [pid 6158] <... rseq resumed>) = 0 [pid 6157] rt_sigprocmask(SIG_SETMASK, [], [pid 6158] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6158] <... set_robust_list resumed>) = 0 [pid 6157] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6158] rt_sigprocmask(SIG_SETMASK, [], [pid 6157] <... futex resumed>) = 0 [pid 6158] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6157] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6158] memfd_create("syzkaller", 0) = 3 [pid 6158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6158] 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"..., 16777216) = 16777216 [pid 6158] munmap(0x7f3be0600000, 138412032) = 0 [pid 6158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6158] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6158] ioctl(4, LOOP_CLR_FD) = 0 [pid 6158] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6158] close(4) = 0 [pid 6158] close(3) = 0 [pid 6158] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6157] <... futex resumed>) = 0 [pid 6157] exit_group(0) = ? [pid 6158] <... futex resumed>) = ? [pid 6158] +++ exited with 0 +++ [pid 6157] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6157, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 6159 attached , child_tidptr=0x55557b776690) = 6159 [pid 6159] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6159] setpgid(0, 0) = 0 [pid 6159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6159] write(3, "1000", 4) = 4 [pid 6159] close(3) = 0 [pid 6159] write(1, "executing program\n", 18executing program ) = 18 [pid 6159] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6159] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6159] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6159] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6159] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6160 attached => {parent_tid=[6160]}, 88) = 6160 [pid 6159] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6159] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6160] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6159] <... futex resumed>) = 0 [pid 6160] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6159] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6160] <... set_robust_list resumed>) = 0 [pid 6160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6160] memfd_create("syzkaller", 0) = 3 [pid 6160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6160] 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"..., 16777216) = 16777216 [pid 6160] munmap(0x7f3be0600000, 138412032) = 0 [pid 6160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6160] ioctl(4, LOOP_CLR_FD) = 0 [pid 6160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6160] close(4) = 0 [pid 6160] close(3) = 0 [pid 6160] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6159] <... futex resumed>) = 0 [pid 6160] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6159] exit_group(0 [pid 6160] <... futex resumed>) = ? [pid 6159] <... exit_group resumed>) = ? [pid 6160] +++ exited with 0 +++ [pid 6159] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6159, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6161 attached , child_tidptr=0x55557b776690) = 6161 [pid 6161] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6161] setpgid(0, 0) = 0 [pid 6161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6161] write(3, "1000", 4) = 4 [pid 6161] close(3) = 0 [pid 6161] write(1, "executing program\n", 18executing program ) = 18 [pid 6161] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6161] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6161] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6161] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6161] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6161] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6162 attached [pid 6162] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6162] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6162] rt_sigprocmask(SIG_SETMASK, [], [pid 6161] <... clone3 resumed> => {parent_tid=[6162]}, 88) = 6162 [pid 6162] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6161] rt_sigprocmask(SIG_SETMASK, [], [pid 6162] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6161] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6161] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6162] <... futex resumed>) = 0 [pid 6161] <... futex resumed>) = 1 [pid 6162] memfd_create("syzkaller", 0 [pid 6161] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6162] <... memfd_create resumed>) = 3 [pid 6162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6162] 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"..., 16777216) = 16777216 [pid 6162] munmap(0x7f3be0600000, 138412032) = 0 [pid 6162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6162] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6162] ioctl(4, LOOP_CLR_FD) = 0 [pid 6162] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6162] close(4) = 0 [pid 6162] close(3) = 0 [pid 6162] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6161] <... futex resumed>) = 0 [pid 6162] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6161] exit_group(0 [pid 6162] <... futex resumed>) = ? [pid 6161] <... exit_group resumed>) = ? [pid 6162] +++ exited with 0 +++ [pid 6161] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6161, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6163 attached , child_tidptr=0x55557b776690) = 6163 [pid 6163] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6163] setpgid(0, 0) = 0 [pid 6163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6163] write(3, "1000", 4) = 4 [pid 6163] close(3) = 0 [pid 6163] write(1, "executing program\n", 18executing program ) = 18 [pid 6163] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6163] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6163] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6163] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6163] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6163] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6164 attached => {parent_tid=[6164]}, 88) = 6164 [pid 6163] rt_sigprocmask(SIG_SETMASK, [], [pid 6164] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6163] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6164] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6163] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6164] <... set_robust_list resumed>) = 0 [pid 6163] <... futex resumed>) = 0 [pid 6164] rt_sigprocmask(SIG_SETMASK, [], [pid 6163] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6164] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6164] memfd_create("syzkaller", 0) = 3 [pid 6164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6164] 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"..., 16777216) = 16777216 [pid 6164] munmap(0x7f3be0600000, 138412032) = 0 [pid 6164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6164] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6164] ioctl(4, LOOP_CLR_FD) = 0 [pid 6164] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6164] close(4) = 0 [pid 6164] close(3) = 0 [pid 6164] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] <... futex resumed>) = 0 [pid 6164] <... futex resumed>) = 1 [pid 6163] exit_group(0 [pid 6164] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6163] <... exit_group resumed>) = ? [pid 6164] +++ exited with 0 +++ [pid 6163] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6163, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6165 attached , child_tidptr=0x55557b776690) = 6165 [pid 6165] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6165] setpgid(0, 0) = 0 [pid 6165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6165] write(3, "1000", 4) = 4 [pid 6165] close(3) = 0 [pid 6165] write(1, "executing program\n", 18executing program ) = 18 [pid 6165] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6165] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6165] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6165] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6165] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6165] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6166 attached => {parent_tid=[6166]}, 88) = 6166 [pid 6165] rt_sigprocmask(SIG_SETMASK, [], [pid 6166] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6166] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6165] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6166] <... set_robust_list resumed>) = 0 [pid 6165] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6166] memfd_create("syzkaller", 0) = 3 [pid 6166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6166] 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"..., 16777216) = 16777216 [pid 6166] munmap(0x7f3be0600000, 138412032) = 0 [pid 6166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6166] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6166] ioctl(4, LOOP_CLR_FD) = 0 [pid 6166] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6166] close(4) = 0 [pid 6166] close(3) = 0 [pid 6166] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6165] <... futex resumed>) = 0 [pid 6166] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6165] exit_group(0 [pid 6166] <... futex resumed>) = ? [pid 6166] +++ exited with 0 +++ [pid 6165] <... exit_group resumed>) = ? [pid 6165] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6165, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6167 attached , child_tidptr=0x55557b776690) = 6167 [pid 6167] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6167] setpgid(0, 0) = 0 [pid 6167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6167] write(3, "1000", 4) = 4 [pid 6167] close(3) = 0 [pid 6167] write(1, "executing program\n", 18executing program ) = 18 [pid 6167] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6167] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6167] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6167] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6167] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6167] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6168 attached [pid 6168] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6167] <... clone3 resumed> => {parent_tid=[6168]}, 88) = 6168 [pid 6168] <... rseq resumed>) = 0 [pid 6167] rt_sigprocmask(SIG_SETMASK, [], [pid 6168] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6167] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6168] <... set_robust_list resumed>) = 0 [pid 6167] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6167] <... futex resumed>) = 0 [pid 6168] memfd_create("syzkaller", 0 [pid 6167] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6168] <... memfd_create resumed>) = 3 [pid 6168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6168] 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"..., 16777216) = 16777216 [pid 6168] munmap(0x7f3be0600000, 138412032) = 0 [pid 6168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6168] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6168] ioctl(4, LOOP_CLR_FD) = 0 [pid 6168] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6168] close(4) = 0 [pid 6168] close(3) = 0 [pid 6168] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] <... futex resumed>) = 0 [pid 6167] exit_group(0 [pid 6168] <... futex resumed>) = ? [pid 6167] <... exit_group resumed>) = ? [pid 6168] +++ exited with 0 +++ [pid 6167] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6167, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6169 attached , child_tidptr=0x55557b776690) = 6169 [pid 6169] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6169] setpgid(0, 0) = 0 [pid 6169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6169] write(3, "1000", 4) = 4 [pid 6169] close(3) = 0 [pid 6169] write(1, "executing program\n", 18executing program ) = 18 [pid 6169] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6169] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6169] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6169] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6169] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6169] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6170 attached [pid 6170] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6169] <... clone3 resumed> => {parent_tid=[6170]}, 88) = 6170 [pid 6170] <... rseq resumed>) = 0 [pid 6170] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6170] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6170] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6169] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6170] <... futex resumed>) = 0 [pid 6169] <... futex resumed>) = 1 [pid 6170] memfd_create("syzkaller", 0 [pid 6169] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6170] <... memfd_create resumed>) = 3 [pid 6170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6170] 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"..., 16777216) = 16777216 [pid 6170] munmap(0x7f3be0600000, 138412032) = 0 [pid 6170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6170] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6170] ioctl(4, LOOP_CLR_FD) = 0 [pid 6170] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6170] close(4) = 0 [pid 6170] close(3) = 0 [pid 6170] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] <... futex resumed>) = 0 [pid 6170] <... futex resumed>) = 1 [pid 6169] exit_group(0 [pid 6170] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6169] <... exit_group resumed>) = ? [pid 6170] +++ exited with 0 +++ [pid 6169] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6169, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 6171 attached , child_tidptr=0x55557b776690) = 6171 [pid 6171] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6171] setpgid(0, 0) = 0 [pid 6171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6171] write(3, "1000", 4) = 4 [pid 6171] close(3) = 0 executing program [pid 6171] write(1, "executing program\n", 18) = 18 [pid 6171] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6171] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6171] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6171] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6171] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6171] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6172 attached [pid 6172] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6171] <... clone3 resumed> => {parent_tid=[6172]}, 88) = 6172 [pid 6172] <... rseq resumed>) = 0 [pid 6171] rt_sigprocmask(SIG_SETMASK, [], [pid 6172] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6172] <... set_robust_list resumed>) = 0 [pid 6171] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6171] <... futex resumed>) = 0 [pid 6172] memfd_create("syzkaller", 0 [pid 6171] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6172] <... memfd_create resumed>) = 3 [pid 6172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6172] 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"..., 16777216) = 16777216 [pid 6172] munmap(0x7f3be0600000, 138412032) = 0 [pid 6172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6172] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6172] ioctl(4, LOOP_CLR_FD) = 0 [pid 6172] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6172] close(4) = 0 [pid 6172] close(3) = 0 [pid 6172] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6171] <... futex resumed>) = 0 [pid 6171] exit_group(0 [pid 6172] <... futex resumed>) = ? [pid 6171] <... exit_group resumed>) = ? [pid 6172] +++ exited with 0 +++ [pid 6171] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6171, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6173 attached , child_tidptr=0x55557b776690) = 6173 [pid 6173] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6173] setpgid(0, 0) = 0 [pid 6173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6173] write(3, "1000", 4) = 4 [pid 6173] close(3) = 0 executing program [pid 6173] write(1, "executing program\n", 18) = 18 [pid 6173] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6173] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6173] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6173] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6173] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6173] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6174 attached => {parent_tid=[6174]}, 88) = 6174 [pid 6173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6174] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6173] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6174] rt_sigprocmask(SIG_SETMASK, [], [pid 6173] <... futex resumed>) = 0 [pid 6173] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6174] memfd_create("syzkaller", 0) = 3 [pid 6174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6174] 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"..., 16777216) = 16777216 [pid 6174] munmap(0x7f3be0600000, 138412032) = 0 [pid 6174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6174] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6174] ioctl(4, LOOP_CLR_FD) = 0 [pid 6174] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6174] close(4) = 0 [pid 6174] close(3) = 0 [pid 6174] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6174] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6173] <... futex resumed>) = 0 [pid 6173] exit_group(0) = ? [pid 6174] <... futex resumed>) = ? [pid 6174] +++ exited with 0 +++ [pid 6173] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6173, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6175 attached , child_tidptr=0x55557b776690) = 6175 [pid 6175] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6175] setpgid(0, 0) = 0 [pid 6175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6175] write(3, "1000", 4) = 4 [pid 6175] close(3) = 0 [pid 6175] write(1, "executing program\n", 18executing program ) = 18 [pid 6175] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6175] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6175] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6175] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6175] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6175] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6176 attached => {parent_tid=[6176]}, 88) = 6176 [pid 6175] rt_sigprocmask(SIG_SETMASK, [], [pid 6176] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6175] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6175] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6176] <... rseq resumed>) = 0 [pid 6176] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6176] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6176] memfd_create("syzkaller", 0) = 3 [pid 6176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6176] 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"..., 16777216) = 16777216 [pid 6176] munmap(0x7f3be0600000, 138412032) = 0 [pid 6176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6176] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6176] ioctl(4, LOOP_CLR_FD) = 0 [pid 6176] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6176] close(4) = 0 [pid 6176] close(3) = 0 [pid 6176] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6175] <... futex resumed>) = 0 [pid 6176] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] exit_group(0 [pid 6176] <... futex resumed>) = ? [pid 6176] +++ exited with 0 +++ [pid 6175] <... exit_group resumed>) = ? [pid 6175] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6175, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6177 attached , child_tidptr=0x55557b776690) = 6177 [pid 6177] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6177] setpgid(0, 0) = 0 [pid 6177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6177] write(3, "1000", 4) = 4 [pid 6177] close(3) = 0 [pid 6177] write(1, "executing program\n", 18executing program ) = 18 [pid 6177] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6177] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6177] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6177] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6177] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6178 attached => {parent_tid=[6178]}, 88) = 6178 [pid 6177] rt_sigprocmask(SIG_SETMASK, [], [pid 6178] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6177] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6178] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6177] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6178] <... set_robust_list resumed>) = 0 [pid 6178] rt_sigprocmask(SIG_SETMASK, [], [pid 6177] <... futex resumed>) = 0 [pid 6178] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6178] memfd_create("syzkaller", 0 [pid 6177] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6178] <... memfd_create resumed>) = 3 [pid 6178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6178] 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"..., 16777216) = 16777216 [pid 6178] munmap(0x7f3be0600000, 138412032) = 0 [pid 6178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6178] ioctl(4, LOOP_CLR_FD) = 0 [pid 6178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6178] close(4) = 0 [pid 6178] close(3) = 0 [pid 6178] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6178] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6177] <... futex resumed>) = 0 [pid 6177] exit_group(0 [pid 6178] <... futex resumed>) = ? [pid 6177] <... exit_group resumed>) = ? [pid 6178] +++ exited with 0 +++ [pid 6177] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6177, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6179 attached , child_tidptr=0x55557b776690) = 6179 [pid 6179] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6179] setpgid(0, 0) = 0 [pid 6179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6179] write(3, "1000", 4) = 4 [pid 6179] close(3) = 0 [pid 6179] write(1, "executing program\n", 18executing program ) = 18 [pid 6179] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6179] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6179] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6179] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6179] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6180 attached [pid 6180] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6179] <... clone3 resumed> => {parent_tid=[6180]}, 88) = 6180 [pid 6180] <... rseq resumed>) = 0 [pid 6179] rt_sigprocmask(SIG_SETMASK, [], [pid 6180] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6180] <... set_robust_list resumed>) = 0 [pid 6179] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6180] rt_sigprocmask(SIG_SETMASK, [], [pid 6179] <... futex resumed>) = 0 [pid 6179] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6180] memfd_create("syzkaller", 0) = 3 [pid 6180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6180] 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"..., 16777216) = 16777216 [pid 6180] munmap(0x7f3be0600000, 138412032) = 0 [pid 6180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6180] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6180] ioctl(4, LOOP_CLR_FD) = 0 [pid 6180] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6180] close(4) = 0 [pid 6180] close(3) = 0 [pid 6180] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6179] <... futex resumed>) = 0 [pid 6180] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] exit_group(0) = ? [pid 6180] <... futex resumed>) = ? [pid 6180] +++ exited with 0 +++ [pid 6179] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6179, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6181 attached , child_tidptr=0x55557b776690) = 6181 [pid 6181] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6181] setpgid(0, 0) = 0 [pid 6181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6181] write(3, "1000", 4) = 4 [pid 6181] close(3) = 0 executing program [pid 6181] write(1, "executing program\n", 18) = 18 [pid 6181] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6181] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6181] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6181] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6181] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6181] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6182 attached [pid 6182] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6181] <... clone3 resumed> => {parent_tid=[6182]}, 88) = 6182 [pid 6182] <... rseq resumed>) = 0 [pid 6181] rt_sigprocmask(SIG_SETMASK, [], [pid 6182] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6181] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6182] <... set_robust_list resumed>) = 0 [pid 6181] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] rt_sigprocmask(SIG_SETMASK, [], [pid 6181] <... futex resumed>) = 0 [pid 6181] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6182] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6182] memfd_create("syzkaller", 0) = 3 [pid 6182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6182] 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"..., 16777216) = 16777216 [pid 6182] munmap(0x7f3be0600000, 138412032) = 0 [pid 6182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6182] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6182] ioctl(4, LOOP_CLR_FD) = 0 [pid 6182] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6182] close(4) = 0 [pid 6182] close(3) = 0 [pid 6182] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6181] <... futex resumed>) = 0 [pid 6182] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6181] exit_group(0 [pid 6182] <... futex resumed>) = ? [pid 6181] <... exit_group resumed>) = ? [pid 6182] +++ exited with 0 +++ [pid 6181] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6181, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 6183 attached , child_tidptr=0x55557b776690) = 6183 [pid 6183] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6183] setpgid(0, 0) = 0 [pid 6183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6183] write(3, "1000", 4) = 4 [pid 6183] close(3executing program ) = 0 [pid 6183] write(1, "executing program\n", 18) = 18 [pid 6183] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6183] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6183] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6183] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6183] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6183] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6184 attached [pid 6184] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6183] <... clone3 resumed> => {parent_tid=[6184]}, 88) = 6184 [pid 6184] <... rseq resumed>) = 0 [pid 6184] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6183] rt_sigprocmask(SIG_SETMASK, [], [pid 6184] <... set_robust_list resumed>) = 0 [pid 6184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6183] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6184] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6183] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] <... futex resumed>) = 0 [pid 6183] <... futex resumed>) = 1 [pid 6183] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6184] memfd_create("syzkaller", 0) = 3 [pid 6184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6184] 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"..., 16777216) = 16777216 [pid 6184] munmap(0x7f3be0600000, 138412032) = 0 [pid 6184] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6184] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6184] ioctl(4, LOOP_CLR_FD) = 0 [pid 6184] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6184] close(4) = 0 [pid 6184] close(3) = 0 [pid 6184] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6183] <... futex resumed>) = 0 [pid 6184] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6183] exit_group(0 [pid 6184] <... futex resumed>) = ? [pid 6183] <... exit_group resumed>) = ? [pid 6184] +++ exited with 0 +++ [pid 6183] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6183, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6185 attached , child_tidptr=0x55557b776690) = 6185 [pid 6185] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6185] setpgid(0, 0) = 0 [pid 6185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6185] write(3, "1000", 4) = 4 [pid 6185] close(3) = 0 [pid 6185] write(1, "executing program\n", 18executing program ) = 18 [pid 6185] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6185] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6185] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6185] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6185] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6185] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6186 attached [pid 6186] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6185] <... clone3 resumed> => {parent_tid=[6186]}, 88) = 6186 [pid 6186] <... rseq resumed>) = 0 [pid 6186] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6185] rt_sigprocmask(SIG_SETMASK, [], [pid 6186] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6185] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6185] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... futex resumed>) = 0 [pid 6185] <... futex resumed>) = 1 [pid 6186] memfd_create("syzkaller", 0 [pid 6185] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6186] <... memfd_create resumed>) = 3 [pid 6186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6186] 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"..., 16777216) = 16777216 [pid 6186] munmap(0x7f3be0600000, 138412032) = 0 [pid 6186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6186] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6186] ioctl(4, LOOP_CLR_FD) = 0 [pid 6186] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6186] close(4) = 0 [pid 6186] close(3) = 0 [pid 6186] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6185] <... futex resumed>) = 0 [pid 6186] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6185] exit_group(0) = ? [pid 6186] <... futex resumed>) = ? [pid 6186] +++ exited with 0 +++ [pid 6185] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6185, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 6187 attached , child_tidptr=0x55557b776690) = 6187 [pid 6187] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6187] setpgid(0, 0) = 0 [pid 6187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6187] write(3, "1000", 4) = 4 [pid 6187] close(3) = 0 [pid 6187] write(1, "executing program\n", 18executing program ) = 18 [pid 6187] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6187] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6187] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6187] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6187] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6187] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6188 attached [pid 6188] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6187] <... clone3 resumed> => {parent_tid=[6188]}, 88) = 6188 [pid 6188] <... rseq resumed>) = 0 [pid 6187] rt_sigprocmask(SIG_SETMASK, [], [pid 6188] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6187] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6188] <... set_robust_list resumed>) = 0 [pid 6188] rt_sigprocmask(SIG_SETMASK, [], [pid 6187] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6188] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6187] <... futex resumed>) = 0 [pid 6187] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6188] memfd_create("syzkaller", 0) = 3 [pid 6188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6188] 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"..., 16777216) = 16777216 [pid 6188] munmap(0x7f3be0600000, 138412032) = 0 [pid 6188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6188] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6188] ioctl(4, LOOP_CLR_FD) = 0 [pid 6188] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6188] close(4) = 0 [pid 6188] close(3) = 0 [pid 6188] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6188] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] <... futex resumed>) = 0 [pid 6187] exit_group(0) = ? [pid 6188] <... futex resumed>) = ? [pid 6188] +++ exited with 0 +++ [pid 6187] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6187, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6189 attached , child_tidptr=0x55557b776690) = 6189 [pid 6189] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6189] setpgid(0, 0) = 0 [pid 6189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6189] write(3, "1000", 4) = 4 [pid 6189] close(3) = 0 [pid 6189] write(1, "executing program\n", 18executing program ) = 18 [pid 6189] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6189] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6189] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6189] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6189] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6189] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6189] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6190 attached [pid 6190] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6189] <... clone3 resumed> => {parent_tid=[6190]}, 88) = 6190 [pid 6190] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6189] rt_sigprocmask(SIG_SETMASK, [], [pid 6190] <... set_robust_list resumed>) = 0 [pid 6189] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6190] rt_sigprocmask(SIG_SETMASK, [], [pid 6189] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6189] <... futex resumed>) = 0 [pid 6190] memfd_create("syzkaller", 0 [pid 6189] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6190] <... memfd_create resumed>) = 3 [pid 6190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6190] 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"..., 16777216) = 16777216 [pid 6190] munmap(0x7f3be0600000, 138412032) = 0 [pid 6190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6190] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6190] ioctl(4, LOOP_CLR_FD) = 0 [pid 6190] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6190] close(4) = 0 [pid 6190] close(3) = 0 [pid 6190] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6189] <... futex resumed>) = 0 [pid 6189] exit_group(0) = ? [pid 6190] <... futex resumed>) = ? [pid 6190] +++ exited with 0 +++ [pid 6189] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6189, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6191 attached , child_tidptr=0x55557b776690) = 6191 [pid 6191] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6191] setpgid(0, 0) = 0 [pid 6191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6191] write(3, "1000", 4) = 4 [pid 6191] close(3) = 0 [pid 6191] write(1, "executing program\n", 18executing program ) = 18 [pid 6191] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6191] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6191] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6191] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6191] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6191] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6192 attached [pid 6192] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6191] <... clone3 resumed> => {parent_tid=[6192]}, 88) = 6192 [pid 6192] <... rseq resumed>) = 0 [pid 6191] rt_sigprocmask(SIG_SETMASK, [], [pid 6192] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6191] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6192] <... set_robust_list resumed>) = 0 [pid 6191] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6191] <... futex resumed>) = 0 [pid 6191] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6192] memfd_create("syzkaller", 0) = 3 [pid 6192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6192] 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"..., 16777216) = 16777216 [pid 6192] munmap(0x7f3be0600000, 138412032) = 0 [pid 6192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6192] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6192] ioctl(4, LOOP_CLR_FD) = 0 [pid 6192] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6192] close(4) = 0 [pid 6192] close(3) = 0 [pid 6192] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6191] <... futex resumed>) = 0 [pid 6192] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6191] exit_group(0 [pid 6192] <... futex resumed>) = ? [pid 6192] +++ exited with 0 +++ [pid 6191] <... exit_group resumed>) = ? [pid 6191] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6191, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6193 attached , child_tidptr=0x55557b776690) = 6193 [pid 6193] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6193] setpgid(0, 0) = 0 [pid 6193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6193] write(3, "1000", 4) = 4 [pid 6193] close(3) = 0 executing program [pid 6193] write(1, "executing program\n", 18) = 18 [pid 6193] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6193] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6193] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6193] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6193] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6193] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6194 attached [pid 6194] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6193] <... clone3 resumed> => {parent_tid=[6194]}, 88) = 6194 [pid 6194] <... rseq resumed>) = 0 [pid 6194] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6193] rt_sigprocmask(SIG_SETMASK, [], [pid 6194] <... set_robust_list resumed>) = 0 [pid 6193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6194] rt_sigprocmask(SIG_SETMASK, [], [pid 6193] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6193] <... futex resumed>) = 0 [pid 6194] memfd_create("syzkaller", 0 [pid 6193] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6194] <... memfd_create resumed>) = 3 [pid 6194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6194] 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"..., 16777216) = 16777216 [pid 6194] munmap(0x7f3be0600000, 138412032) = 0 [pid 6194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6194] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6194] ioctl(4, LOOP_CLR_FD) = 0 [pid 6194] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6194] close(4) = 0 [pid 6194] close(3) = 0 [pid 6194] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6193] <... futex resumed>) = 0 [pid 6193] exit_group(0) = ? [pid 6194] <... futex resumed>) = ? [pid 6194] +++ exited with 0 +++ [pid 6193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6193, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6195 attached , child_tidptr=0x55557b776690) = 6195 [pid 6195] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6195] setpgid(0, 0) = 0 [pid 6195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6195] write(3, "1000", 4) = 4 [pid 6195] close(3) = 0 [pid 6195] write(1, "executing program\n", 18executing program ) = 18 [pid 6195] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6195] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6195] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6195] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6195] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6195] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6196 attached [pid 6196] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6195] <... clone3 resumed> => {parent_tid=[6196]}, 88) = 6196 [pid 6196] <... rseq resumed>) = 0 [pid 6195] rt_sigprocmask(SIG_SETMASK, [], [pid 6196] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6195] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6196] <... set_robust_list resumed>) = 0 [pid 6195] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6195] <... futex resumed>) = 0 [pid 6196] memfd_create("syzkaller", 0 [pid 6195] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6196] <... memfd_create resumed>) = 3 [pid 6196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6196] 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"..., 16777216) = 16777216 [pid 6196] munmap(0x7f3be0600000, 138412032) = 0 [pid 6196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6196] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6196] ioctl(4, LOOP_CLR_FD) = 0 [pid 6196] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6196] close(4) = 0 [pid 6196] close(3) = 0 [pid 6196] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6195] <... futex resumed>) = 0 [pid 6196] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6195] exit_group(0 [pid 6196] <... futex resumed>) = ? [pid 6195] <... exit_group resumed>) = ? [pid 6196] +++ exited with 0 +++ [pid 6195] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6195, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6197 attached , child_tidptr=0x55557b776690) = 6197 [pid 6197] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6197] setpgid(0, 0) = 0 [pid 6197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6197] write(3, "1000", 4) = 4 [pid 6197] close(3) = 0 [pid 6197] write(1, "executing program\n", 18executing program ) = 18 [pid 6197] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6197] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6197] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6197] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6197] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6198 attached => {parent_tid=[6198]}, 88) = 6198 [pid 6197] rt_sigprocmask(SIG_SETMASK, [], [pid 6198] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6197] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6197] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6198] <... rseq resumed>) = 0 [pid 6198] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6198] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6198] memfd_create("syzkaller", 0) = 3 [pid 6198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6198] 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"..., 16777216) = 16777216 [pid 6198] munmap(0x7f3be0600000, 138412032) = 0 [pid 6198] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6198] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6198] ioctl(4, LOOP_CLR_FD) = 0 [pid 6198] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6198] close(4) = 0 [pid 6198] close(3) = 0 [pid 6198] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6197] <... futex resumed>) = 0 [pid 6198] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6197] exit_group(0) = ? [pid 6198] <... futex resumed>) = ? [pid 6198] +++ exited with 0 +++ [pid 6197] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6197, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 6199 attached , child_tidptr=0x55557b776690) = 6199 [pid 6199] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6199] setpgid(0, 0) = 0 [pid 6199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6199] write(3, "1000", 4) = 4 [pid 6199] close(3) = 0 [pid 6199] write(1, "executing program\n", 18executing program ) = 18 [pid 6199] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6199] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6199] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6199] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6199] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6199] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6200 attached [pid 6200] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6199] <... clone3 resumed> => {parent_tid=[6200]}, 88) = 6200 [pid 6200] <... rseq resumed>) = 0 [pid 6200] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6199] rt_sigprocmask(SIG_SETMASK, [], [pid 6200] <... set_robust_list resumed>) = 0 [pid 6199] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6200] rt_sigprocmask(SIG_SETMASK, [], [pid 6199] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6199] <... futex resumed>) = 0 [pid 6200] memfd_create("syzkaller", 0 [pid 6199] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6200] <... memfd_create resumed>) = 3 [pid 6200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6200] 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"..., 16777216) = 16777216 [pid 6200] munmap(0x7f3be0600000, 138412032) = 0 [pid 6200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6200] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6200] ioctl(4, LOOP_CLR_FD) = 0 [pid 6200] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6200] close(4) = 0 [pid 6200] close(3) = 0 [pid 6200] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6199] <... futex resumed>) = 0 [pid 6200] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6199] exit_group(0 [pid 6200] <... futex resumed>) = ? [pid 6199] <... exit_group resumed>) = ? [pid 6200] +++ exited with 0 +++ [pid 6199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6199, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6201 attached , child_tidptr=0x55557b776690) = 6201 [pid 6201] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6201] setpgid(0, 0) = 0 [pid 6201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6201] write(3, "1000", 4) = 4 [pid 6201] close(3) = 0 [pid 6201] write(1, "executing program\n", 18executing program ) = 18 [pid 6201] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6201] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6201] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6201] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6201] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6201] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6202 attached => {parent_tid=[6202]}, 88) = 6202 [pid 6201] rt_sigprocmask(SIG_SETMASK, [], [pid 6202] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6201] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6202] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6201] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] <... set_robust_list resumed>) = 0 [pid 6201] <... futex resumed>) = 0 [pid 6202] rt_sigprocmask(SIG_SETMASK, [], [pid 6201] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6202] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6202] memfd_create("syzkaller", 0) = 3 [pid 6202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6202] 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"..., 16777216) = 16777216 [pid 6202] munmap(0x7f3be0600000, 138412032) = 0 [pid 6202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6202] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6202] ioctl(4, LOOP_CLR_FD) = 0 [pid 6202] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6202] close(4) = 0 [pid 6202] close(3) = 0 [pid 6202] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6201] <... futex resumed>) = 0 [pid 6202] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6201] exit_group(0) = ? [pid 6202] <... futex resumed>) = ? [pid 6202] +++ exited with 0 +++ [pid 6201] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6201, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6203 attached , child_tidptr=0x55557b776690) = 6203 [pid 6203] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6203] setpgid(0, 0) = 0 [pid 6203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6203] write(3, "1000", 4) = 4 [pid 6203] close(3) = 0 executing program [pid 6203] write(1, "executing program\n", 18) = 18 [pid 6203] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6203] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6203] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6203] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6203] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6203] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6204 attached [pid 6204] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6203] <... clone3 resumed> => {parent_tid=[6204]}, 88) = 6204 [pid 6204] <... rseq resumed>) = 0 [pid 6204] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6203] rt_sigprocmask(SIG_SETMASK, [], [pid 6204] <... set_robust_list resumed>) = 0 [pid 6203] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6204] rt_sigprocmask(SIG_SETMASK, [], [pid 6203] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6203] <... futex resumed>) = 0 [pid 6204] memfd_create("syzkaller", 0 [pid 6203] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6204] <... memfd_create resumed>) = 3 [pid 6204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6204] 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"..., 16777216) = 16777216 [pid 6204] munmap(0x7f3be0600000, 138412032) = 0 [pid 6204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6204] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6204] ioctl(4, LOOP_CLR_FD) = 0 [pid 6204] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6204] close(4) = 0 [pid 6204] close(3) = 0 [pid 6204] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6203] exit_group(0) = ? [pid 6204] +++ exited with 0 +++ [pid 6203] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6203, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6205 attached , child_tidptr=0x55557b776690) = 6205 [pid 6205] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6205] setpgid(0, 0) = 0 [pid 6205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6205] write(3, "1000", 4) = 4 [pid 6205] close(3) = 0 [pid 6205] write(1, "executing program\n", 18executing program ) = 18 [pid 6205] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6205] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6205] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6205] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6205] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6206 attached => {parent_tid=[6206]}, 88) = 6206 [pid 6205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6205] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6205] <... futex resumed>) = 0 [pid 6206] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6205] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6206] <... set_robust_list resumed>) = 0 [pid 6206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6206] memfd_create("syzkaller", 0) = 3 [pid 6206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6206] 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"..., 16777216) = 16777216 [pid 6206] munmap(0x7f3be0600000, 138412032) = 0 [pid 6206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6206] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6206] ioctl(4, LOOP_CLR_FD) = 0 [pid 6206] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6206] close(4) = 0 [pid 6206] close(3) = 0 [pid 6206] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6205] <... futex resumed>) = 0 [pid 6206] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6205] exit_group(0 [pid 6206] <... futex resumed>) = ? [pid 6205] <... exit_group resumed>) = ? [pid 6206] +++ exited with 0 +++ [pid 6205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6205, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6207 attached , child_tidptr=0x55557b776690) = 6207 [pid 6207] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6207] setpgid(0, 0) = 0 [pid 6207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6207] write(3, "1000", 4) = 4 [pid 6207] close(3) = 0 [pid 6207] write(1, "executing program\n", 18executing program ) = 18 [pid 6207] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6207] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6207] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6207] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6207] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6207] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6208 attached [pid 6208] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6207] <... clone3 resumed> => {parent_tid=[6208]}, 88) = 6208 [pid 6208] <... rseq resumed>) = 0 [pid 6208] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6207] rt_sigprocmask(SIG_SETMASK, [], [pid 6208] rt_sigprocmask(SIG_SETMASK, [], [pid 6207] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6208] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6207] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6208] memfd_create("syzkaller", 0 [pid 6207] <... futex resumed>) = 0 [pid 6207] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6208] <... memfd_create resumed>) = 3 [pid 6208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6208] 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"..., 16777216) = 16777216 [pid 6208] munmap(0x7f3be0600000, 138412032) = 0 [pid 6208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6208] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6208] ioctl(4, LOOP_CLR_FD) = 0 [pid 6208] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6208] close(4) = 0 [pid 6208] close(3) = 0 [pid 6208] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6207] <... futex resumed>) = 0 [pid 6208] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6207] exit_group(0 [pid 6208] <... futex resumed>) = ? [pid 6208] +++ exited with 0 +++ [pid 6207] <... exit_group resumed>) = ? [pid 6207] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6207, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 6209 attached , child_tidptr=0x55557b776690) = 6209 [pid 6209] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6209] setpgid(0, 0) = 0 [pid 6209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6209] write(3, "1000", 4) = 4 [pid 6209] close(3) = 0 executing program [pid 6209] write(1, "executing program\n", 18) = 18 [pid 6209] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6209] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6209] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6209] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6209] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6209] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6210 attached => {parent_tid=[6210]}, 88) = 6210 [pid 6209] rt_sigprocmask(SIG_SETMASK, [], [pid 6210] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6209] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6210] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6209] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6210] <... set_robust_list resumed>) = 0 [pid 6209] <... futex resumed>) = 0 [pid 6210] rt_sigprocmask(SIG_SETMASK, [], [pid 6209] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6210] memfd_create("syzkaller", 0) = 3 [pid 6210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6210] 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"..., 16777216) = 16777216 [pid 6210] munmap(0x7f3be0600000, 138412032) = 0 [pid 6210] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6210] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6210] ioctl(4, LOOP_CLR_FD) = 0 [pid 6210] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6210] close(4) = 0 [pid 6210] close(3) = 0 [pid 6210] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6209] <... futex resumed>) = 0 [pid 6210] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6209] exit_group(0 [pid 6210] <... futex resumed>) = ? [pid 6209] <... exit_group resumed>) = ? [pid 6210] +++ exited with 0 +++ [pid 6209] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6209, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 6211 attached , child_tidptr=0x55557b776690) = 6211 [pid 6211] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6211] setpgid(0, 0) = 0 [pid 6211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6211] write(3, "1000", 4) = 4 [pid 6211] close(3) = 0 [pid 6211] write(1, "executing program\n", 18executing program ) = 18 [pid 6211] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6211] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6211] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6211] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6211] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6211] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6212 attached [pid 6212] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6211] <... clone3 resumed> => {parent_tid=[6212]}, 88) = 6212 [pid 6212] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6211] rt_sigprocmask(SIG_SETMASK, [], [pid 6212] <... set_robust_list resumed>) = 0 [pid 6211] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6212] rt_sigprocmask(SIG_SETMASK, [], [pid 6211] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6212] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6212] memfd_create("syzkaller", 0 [pid 6211] <... futex resumed>) = 0 [pid 6211] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6212] <... memfd_create resumed>) = 3 [pid 6212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6212] 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"..., 16777216) = 16777216 [pid 6212] munmap(0x7f3be0600000, 138412032) = 0 [pid 6212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6212] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6212] ioctl(4, LOOP_CLR_FD) = 0 [pid 6212] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6212] close(4) = 0 [pid 6212] close(3) = 0 [pid 6212] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6212] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6211] <... futex resumed>) = 0 [pid 6211] exit_group(0) = ? [pid 6212] <... futex resumed>) = ? [pid 6212] +++ exited with 0 +++ [pid 6211] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6211, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- 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 6213 attached , child_tidptr=0x55557b776690) = 6213 [pid 6213] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6213] setpgid(0, 0) = 0 [pid 6213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6213] write(3, "1000", 4) = 4 [pid 6213] close(3) = 0 executing program [pid 6213] write(1, "executing program\n", 18) = 18 [pid 6213] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6213] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6213] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6213] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6213] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6213] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6214 attached [pid 6214] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6213] <... clone3 resumed> => {parent_tid=[6214]}, 88) = 6214 [pid 6214] <... rseq resumed>) = 0 [pid 6213] rt_sigprocmask(SIG_SETMASK, [], [pid 6214] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6213] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6214] <... set_robust_list resumed>) = 0 [pid 6213] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6213] <... futex resumed>) = 0 [pid 6214] memfd_create("syzkaller", 0 [pid 6213] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6214] <... memfd_create resumed>) = 3 [pid 6214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6214] 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"..., 16777216) = 16777216 [pid 6214] munmap(0x7f3be0600000, 138412032) = 0 [pid 6214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6214] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6214] ioctl(4, LOOP_CLR_FD) = 0 [pid 6214] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6214] close(4) = 0 [pid 6214] close(3) = 0 [pid 6214] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6213] <... futex resumed>) = 0 [pid 6214] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6213] exit_group(0 [pid 6214] <... futex resumed>) = ? [pid 6214] +++ exited with 0 +++ [pid 6213] <... exit_group resumed>) = ? [pid 6213] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6213, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6215 attached , child_tidptr=0x55557b776690) = 6215 [pid 6215] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6215] setpgid(0, 0) = 0 [pid 6215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6215] write(3, "1000", 4) = 4 [pid 6215] close(3) = 0 [pid 6215] write(1, "executing program\n", 18) = 18 executing program [pid 6215] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6215] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6215] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6215] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6215] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6215] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6216 attached [pid 6216] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6216] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6216] rt_sigprocmask(SIG_SETMASK, [], [pid 6215] <... clone3 resumed> => {parent_tid=[6216]}, 88) = 6216 [pid 6216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6215] rt_sigprocmask(SIG_SETMASK, [], [pid 6216] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6215] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6215] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6216] <... futex resumed>) = 0 [pid 6215] <... futex resumed>) = 1 [pid 6215] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6216] memfd_create("syzkaller", 0) = 3 [pid 6216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6216] 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"..., 16777216) = 16777216 [pid 6216] munmap(0x7f3be0600000, 138412032) = 0 [pid 6216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6216] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6216] ioctl(4, LOOP_CLR_FD) = 0 [pid 6216] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6216] close(4) = 0 [pid 6216] close(3) = 0 [pid 6216] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6215] <... futex resumed>) = 0 [pid 6216] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6215] exit_group(0 [pid 6216] <... futex resumed>) = ? [pid 6215] <... exit_group resumed>) = ? [pid 6216] +++ exited with 0 +++ [pid 6215] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6215, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6217 attached , child_tidptr=0x55557b776690) = 6217 [pid 6217] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6217] setpgid(0, 0) = 0 [pid 6217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6217] write(3, "1000", 4) = 4 [pid 6217] close(3) = 0 [pid 6217] write(1, "executing program\n", 18executing program ) = 18 [pid 6217] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6217] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6217] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6217] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6217] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6217] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6218 attached [pid 6218] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6217] <... clone3 resumed> => {parent_tid=[6218]}, 88) = 6218 [pid 6218] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6217] rt_sigprocmask(SIG_SETMASK, [], [pid 6218] <... set_robust_list resumed>) = 0 [pid 6217] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6218] rt_sigprocmask(SIG_SETMASK, [], [pid 6217] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6217] <... futex resumed>) = 0 [pid 6218] memfd_create("syzkaller", 0 [pid 6217] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6218] <... memfd_create resumed>) = 3 [pid 6218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6218] 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"..., 16777216) = 16777216 [pid 6218] munmap(0x7f3be0600000, 138412032) = 0 [pid 6218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6218] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6218] ioctl(4, LOOP_CLR_FD) = 0 [pid 6218] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6218] close(4) = 0 [pid 6218] close(3) = 0 [pid 6218] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6217] <... futex resumed>) = 0 [pid 6218] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6217] exit_group(0 [pid 6218] <... futex resumed>) = ? [pid 6217] <... exit_group resumed>) = ? [pid 6218] +++ exited with 0 +++ [pid 6217] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6217, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6219 attached , child_tidptr=0x55557b776690) = 6219 [pid 6219] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6219] setpgid(0, 0) = 0 [pid 6219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6219] write(3, "1000", 4) = 4 [pid 6219] close(3) = 0 [pid 6219] write(1, "executing program\n", 18executing program ) = 18 [pid 6219] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6219] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6219] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6219] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6219] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6219] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6220 attached [pid 6220] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6219] <... clone3 resumed> => {parent_tid=[6220]}, 88) = 6220 [pid 6220] <... rseq resumed>) = 0 [pid 6219] rt_sigprocmask(SIG_SETMASK, [], [pid 6220] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6219] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6220] <... set_robust_list resumed>) = 0 [pid 6219] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6220] rt_sigprocmask(SIG_SETMASK, [], [pid 6219] <... futex resumed>) = 0 [pid 6220] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6219] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6220] memfd_create("syzkaller", 0) = 3 [pid 6220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6220] 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"..., 16777216) = 16777216 [pid 6220] munmap(0x7f3be0600000, 138412032) = 0 [pid 6220] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6220] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6220] ioctl(4, LOOP_CLR_FD) = 0 [pid 6220] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6220] close(4) = 0 [pid 6220] close(3) = 0 [pid 6220] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6220] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6219] <... futex resumed>) = 0 [pid 6219] exit_group(0 [pid 6220] <... futex resumed>) = ? [pid 6219] <... exit_group resumed>) = ? [pid 6220] +++ exited with 0 +++ [pid 6219] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6219, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6221 attached , child_tidptr=0x55557b776690) = 6221 [pid 6221] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6221] setpgid(0, 0) = 0 [pid 6221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6221] write(3, "1000", 4) = 4 [pid 6221] close(3) = 0 executing program [pid 6221] write(1, "executing program\n", 18) = 18 [pid 6221] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6221] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6221] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6221] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6221] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6221] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6222 attached [pid 6222] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6221] <... clone3 resumed> => {parent_tid=[6222]}, 88) = 6222 [pid 6222] <... rseq resumed>) = 0 [pid 6221] rt_sigprocmask(SIG_SETMASK, [], [pid 6222] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6221] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6222] <... set_robust_list resumed>) = 0 [pid 6221] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6222] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6221] <... futex resumed>) = 0 [pid 6222] memfd_create("syzkaller", 0 [pid 6221] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6222] <... memfd_create resumed>) = 3 [pid 6222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6222] 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"..., 16777216) = 16777216 [pid 6222] munmap(0x7f3be0600000, 138412032) = 0 [pid 6222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6222] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6222] ioctl(4, LOOP_CLR_FD) = 0 [pid 6222] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6222] close(4) = 0 [pid 6222] close(3) = 0 [pid 6222] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6221] <... futex resumed>) = 0 [pid 6221] exit_group(0 [pid 6222] <... futex resumed>) = ? [pid 6221] <... exit_group resumed>) = ? [pid 6222] +++ exited with 0 +++ [pid 6221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6221, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6223 attached , child_tidptr=0x55557b776690) = 6223 [pid 6223] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6223] setpgid(0, 0) = 0 [pid 6223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6223] write(3, "1000", 4) = 4 [pid 6223] close(3) = 0 [pid 6223] write(1, "executing program\n", 18executing program ) = 18 [pid 6223] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6223] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6223] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6223] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6223] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6223] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6224 attached [pid 6224] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6223] <... clone3 resumed> => {parent_tid=[6224]}, 88) = 6224 [pid 6224] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6223] rt_sigprocmask(SIG_SETMASK, [], [pid 6224] <... set_robust_list resumed>) = 0 [pid 6224] rt_sigprocmask(SIG_SETMASK, [], [pid 6223] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6224] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6223] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6224] memfd_create("syzkaller", 0 [pid 6223] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6224] <... memfd_create resumed>) = 3 [pid 6224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6224] 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"..., 16777216) = 16777216 [pid 6224] munmap(0x7f3be0600000, 138412032) = 0 [pid 6224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6224] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6224] ioctl(4, LOOP_CLR_FD) = 0 [pid 6224] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6224] close(4) = 0 [pid 6224] close(3) = 0 [pid 6224] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6224] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6223] <... futex resumed>) = 0 [pid 6223] exit_group(0) = ? [pid 6224] <... futex resumed>) = ? [pid 6224] +++ exited with 0 +++ [pid 6223] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6223, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6225 attached , child_tidptr=0x55557b776690) = 6225 [pid 6225] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6225] setpgid(0, 0) = 0 [pid 6225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6225] write(3, "1000", 4) = 4 [pid 6225] close(3) = 0 executing program [pid 6225] write(1, "executing program\n", 18) = 18 [pid 6225] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6225] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6225] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6225] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6225] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6225] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6225] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6226 attached [pid 6226] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6225] <... clone3 resumed> => {parent_tid=[6226]}, 88) = 6226 [pid 6226] <... rseq resumed>) = 0 [pid 6226] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6225] rt_sigprocmask(SIG_SETMASK, [], [pid 6226] <... set_robust_list resumed>) = 0 [pid 6225] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6226] rt_sigprocmask(SIG_SETMASK, [], [pid 6225] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6226] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6225] <... futex resumed>) = 0 [pid 6226] memfd_create("syzkaller", 0 [pid 6225] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6226] <... memfd_create resumed>) = 3 [pid 6226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6226] 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"..., 16777216) = 16777216 [pid 6226] munmap(0x7f3be0600000, 138412032) = 0 [pid 6226] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6226] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6226] ioctl(4, LOOP_CLR_FD) = 0 [pid 6226] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6226] close(4) = 0 [pid 6226] close(3) = 0 [pid 6226] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6226] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6225] <... futex resumed>) = 0 [pid 6225] exit_group(0 [pid 6226] <... futex resumed>) = ? [pid 6226] +++ exited with 0 +++ [pid 6225] <... exit_group resumed>) = ? [pid 6225] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6225, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6227 attached , child_tidptr=0x55557b776690) = 6227 [pid 6227] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6227] setpgid(0, 0) = 0 [pid 6227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6227] write(3, "1000", 4) = 4 [pid 6227] close(3) = 0 executing program [pid 6227] write(1, "executing program\n", 18) = 18 [pid 6227] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6227] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6227] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6227] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6227] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6227] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6228 attached [pid 6228] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6228] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6228] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6227] <... clone3 resumed> => {parent_tid=[6228]}, 88) = 6228 [pid 6228] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6227] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6227] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6228] <... futex resumed>) = 0 [pid 6227] <... futex resumed>) = 1 [pid 6228] memfd_create("syzkaller", 0 [pid 6227] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6228] <... memfd_create resumed>) = 3 [pid 6228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6228] 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"..., 16777216) = 16777216 [pid 6228] munmap(0x7f3be0600000, 138412032) = 0 [pid 6228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6228] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6228] ioctl(4, LOOP_CLR_FD) = 0 [pid 6228] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6228] close(4) = 0 [pid 6228] close(3) = 0 [pid 6228] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6227] <... futex resumed>) = 0 [pid 6228] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6227] exit_group(0 [pid 6228] <... futex resumed>) = ? [pid 6227] <... exit_group resumed>) = ? [pid 6228] +++ exited with 0 +++ [pid 6227] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6227, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6229 attached , child_tidptr=0x55557b776690) = 6229 [pid 6229] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6229] setpgid(0, 0) = 0 [pid 6229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6229] write(3, "1000", 4) = 4 [pid 6229] close(3) = 0 [pid 6229] write(1, "executing program\n", 18executing program ) = 18 [pid 6229] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6229] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6229] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6229] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6229] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6229] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6230 attached [pid 6230] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6230] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6229] <... clone3 resumed> => {parent_tid=[6230]}, 88) = 6230 [pid 6230] <... set_robust_list resumed>) = 0 [pid 6229] rt_sigprocmask(SIG_SETMASK, [], [pid 6230] rt_sigprocmask(SIG_SETMASK, [], [pid 6229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6229] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6230] memfd_create("syzkaller", 0 [pid 6229] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6230] <... memfd_create resumed>) = 3 [pid 6230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6230] 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"..., 16777216) = 16777216 [pid 6230] munmap(0x7f3be0600000, 138412032) = 0 [pid 6230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6230] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6230] ioctl(4, LOOP_CLR_FD) = 0 [pid 6230] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6230] close(4) = 0 [pid 6230] close(3) = 0 [pid 6230] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6230] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6229] <... futex resumed>) = 0 [pid 6229] exit_group(0) = ? [pid 6230] <... futex resumed>) = ? [pid 6230] +++ exited with 0 +++ [pid 6229] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6229, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6231 attached , child_tidptr=0x55557b776690) = 6231 [pid 6231] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6231] setpgid(0, 0) = 0 [pid 6231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6231] write(3, "1000", 4) = 4 [pid 6231] close(3) = 0 [pid 6231] write(1, "executing program\n", 18executing program ) = 18 [pid 6231] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6231] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6231] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6231] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6231] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6231] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6232 attached => {parent_tid=[6232]}, 88) = 6232 [pid 6231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6232] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6231] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6232] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6231] <... futex resumed>) = 0 [pid 6232] <... set_robust_list resumed>) = 0 [pid 6232] rt_sigprocmask(SIG_SETMASK, [], [pid 6231] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6232] memfd_create("syzkaller", 0) = 3 [pid 6232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6232] 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"..., 16777216) = 16777216 [pid 6232] munmap(0x7f3be0600000, 138412032) = 0 [pid 6232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6232] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6232] ioctl(4, LOOP_CLR_FD) = 0 [pid 6232] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6232] close(4) = 0 [pid 6232] close(3) = 0 [pid 6232] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6231] <... futex resumed>) = 0 [pid 6232] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6231] exit_group(0) = ? [pid 6232] <... futex resumed>) = ? [pid 6232] +++ exited with 0 +++ [pid 6231] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6231, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6233 attached , child_tidptr=0x55557b776690) = 6233 [pid 6233] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6233] setpgid(0, 0) = 0 [pid 6233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6233] write(3, "1000", 4) = 4 [pid 6233] close(3) = 0 [pid 6233] write(1, "executing program\n", 18executing program ) = 18 [pid 6233] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6233] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6233] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6233] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6233] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6233] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6234 attached [pid 6234] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6233] <... clone3 resumed> => {parent_tid=[6234]}, 88) = 6234 [pid 6234] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6233] rt_sigprocmask(SIG_SETMASK, [], [pid 6234] <... set_robust_list resumed>) = 0 [pid 6233] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6234] rt_sigprocmask(SIG_SETMASK, [], [pid 6233] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6233] <... futex resumed>) = 0 [pid 6234] memfd_create("syzkaller", 0 [pid 6233] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6234] <... memfd_create resumed>) = 3 [pid 6234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6234] 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"..., 16777216) = 16777216 [pid 6234] munmap(0x7f3be0600000, 138412032) = 0 [pid 6234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6234] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6234] ioctl(4, LOOP_CLR_FD) = 0 [pid 6234] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6234] close(4) = 0 [pid 6234] close(3) = 0 [pid 6234] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6233] <... futex resumed>) = 0 [pid 6234] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6233] exit_group(0 [pid 6234] <... futex resumed>) = ? [pid 6234] +++ exited with 0 +++ [pid 6233] <... exit_group resumed>) = ? [pid 6233] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6233, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6235 attached , child_tidptr=0x55557b776690) = 6235 [pid 6235] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6235] setpgid(0, 0) = 0 [pid 6235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6235] write(3, "1000", 4) = 4 [pid 6235] close(3) = 0 executing program [pid 6235] write(1, "executing program\n", 18) = 18 [pid 6235] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6235] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6235] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6235] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6235] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6235] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6236 attached => {parent_tid=[6236]}, 88) = 6236 [pid 6235] rt_sigprocmask(SIG_SETMASK, [], [pid 6236] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6236] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6235] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6236] <... set_robust_list resumed>) = 0 [pid 6235] <... futex resumed>) = 0 [pid 6236] rt_sigprocmask(SIG_SETMASK, [], [pid 6235] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6236] memfd_create("syzkaller", 0) = 3 [pid 6236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6236] 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"..., 16777216) = 16777216 [pid 6236] munmap(0x7f3be0600000, 138412032) = 0 [pid 6236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6236] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6236] ioctl(4, LOOP_CLR_FD) = 0 [pid 6236] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6236] close(4) = 0 [pid 6236] close(3) = 0 [pid 6236] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6236] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6235] <... futex resumed>) = 0 [pid 6235] exit_group(0 [pid 6236] <... futex resumed>) = ? [pid 6235] <... exit_group resumed>) = ? [pid 6236] +++ exited with 0 +++ [pid 6235] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6235, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6237 attached , child_tidptr=0x55557b776690) = 6237 [pid 6237] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6237] setpgid(0, 0) = 0 [pid 6237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6237] write(3, "1000", 4) = 4 [pid 6237] close(3) = 0 executing program [pid 6237] write(1, "executing program\n", 18) = 18 [pid 6237] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6237] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6237] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6237] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6237] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6237] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6238 attached [pid 6238] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6238] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6237] <... clone3 resumed> => {parent_tid=[6238]}, 88) = 6238 [pid 6238] rt_sigprocmask(SIG_SETMASK, [], [pid 6237] rt_sigprocmask(SIG_SETMASK, [], [pid 6238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6237] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6238] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6237] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6237] <... futex resumed>) = 0 [pid 6237] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6238] memfd_create("syzkaller", 0) = 3 [pid 6238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6238] 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"..., 16777216) = 16777216 [pid 6238] munmap(0x7f3be0600000, 138412032) = 0 [pid 6238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6238] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6238] ioctl(4, LOOP_CLR_FD) = 0 [pid 6238] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6238] close(4) = 0 [pid 6238] close(3) = 0 [pid 6238] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6237] <... futex resumed>) = 0 [pid 6237] exit_group(0 [pid 6238] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6237] <... exit_group resumed>) = ? [pid 6238] +++ exited with 0 +++ [pid 6237] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6237, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6239 attached , child_tidptr=0x55557b776690) = 6239 [pid 6239] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6239] setpgid(0, 0) = 0 [pid 6239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6239] write(3, "1000", 4) = 4 [pid 6239] close(3) = 0 [pid 6239] write(1, "executing program\n", 18executing program ) = 18 [pid 6239] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6239] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6239] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6239] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6239] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6239] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6240 attached [pid 6240] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6239] <... clone3 resumed> => {parent_tid=[6240]}, 88) = 6240 [pid 6240] <... rseq resumed>) = 0 [pid 6239] rt_sigprocmask(SIG_SETMASK, [], [pid 6240] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6239] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6240] <... set_robust_list resumed>) = 0 [pid 6239] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6240] rt_sigprocmask(SIG_SETMASK, [], [pid 6239] <... futex resumed>) = 0 [pid 6240] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6239] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6240] memfd_create("syzkaller", 0) = 3 [pid 6240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6240] 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"..., 16777216) = 16777216 [pid 6240] munmap(0x7f3be0600000, 138412032) = 0 [pid 6240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6240] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6240] ioctl(4, LOOP_CLR_FD) = 0 [pid 6240] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6240] close(4) = 0 [pid 6240] close(3) = 0 [pid 6240] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6240] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6239] <... futex resumed>) = 0 [pid 6239] exit_group(0 [pid 6240] <... futex resumed>) = ? [pid 6239] <... exit_group resumed>) = ? [pid 6240] +++ exited with 0 +++ [pid 6239] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6239, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6241 attached , child_tidptr=0x55557b776690) = 6241 [pid 6241] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6241] setpgid(0, 0) = 0 [pid 6241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6241] write(3, "1000", 4) = 4 [pid 6241] close(3) = 0 executing program [pid 6241] write(1, "executing program\n", 18) = 18 [pid 6241] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6241] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6241] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6241] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6241] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6241] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6242 attached [pid 6242] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6241] <... clone3 resumed> => {parent_tid=[6242]}, 88) = 6242 [pid 6242] <... rseq resumed>) = 0 [pid 6241] rt_sigprocmask(SIG_SETMASK, [], [pid 6242] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6241] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6242] <... set_robust_list resumed>) = 0 [pid 6241] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6242] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6241] <... futex resumed>) = 0 [pid 6242] memfd_create("syzkaller", 0 [pid 6241] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6242] <... memfd_create resumed>) = 3 [pid 6242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6242] 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"..., 16777216) = 16777216 [pid 6242] munmap(0x7f3be0600000, 138412032) = 0 [pid 6242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6242] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6242] ioctl(4, LOOP_CLR_FD) = 0 [pid 6242] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6242] close(4) = 0 [pid 6242] close(3) = 0 [pid 6242] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6241] <... futex resumed>) = 0 [pid 6241] exit_group(0 [pid 6242] <... futex resumed>) = ? [pid 6241] <... exit_group resumed>) = ? [pid 6242] +++ exited with 0 +++ [pid 6241] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6241, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=11 /* 0.11 s */} --- 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 6243 attached , child_tidptr=0x55557b776690) = 6243 [pid 6243] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6243] setpgid(0, 0) = 0 [pid 6243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6243] write(3, "1000", 4) = 4 [pid 6243] close(3) = 0 [pid 6243] write(1, "executing program\n", 18executing program ) = 18 [pid 6243] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6243] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6243] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6243] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6243] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6243] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6244 attached => {parent_tid=[6244]}, 88) = 6244 [pid 6243] rt_sigprocmask(SIG_SETMASK, [], [pid 6244] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6243] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6244] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6243] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6244] <... set_robust_list resumed>) = 0 [pid 6243] <... futex resumed>) = 0 [pid 6244] rt_sigprocmask(SIG_SETMASK, [], [pid 6243] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6244] memfd_create("syzkaller", 0) = 3 [pid 6244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6244] 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"..., 16777216) = 16777216 [pid 6244] munmap(0x7f3be0600000, 138412032) = 0 [pid 6244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6244] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6244] ioctl(4, LOOP_CLR_FD) = 0 [pid 6244] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6244] close(4) = 0 [pid 6244] close(3) = 0 [pid 6244] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6243] <... futex resumed>) = 0 [pid 6244] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6243] exit_group(0) = ? [pid 6244] <... futex resumed>) = ? [pid 6244] +++ exited with 0 +++ [pid 6243] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6243, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=10 /* 0.10 s */} --- 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 6245 attached , child_tidptr=0x55557b776690) = 6245 [pid 6245] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6245] setpgid(0, 0) = 0 [pid 6245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6245] write(3, "1000", 4) = 4 [pid 6245] close(3) = 0 executing program [pid 6245] write(1, "executing program\n", 18) = 18 [pid 6245] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6245] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6245] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6245] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6245] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6245] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6246 attached [pid 6246] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6245] <... clone3 resumed> => {parent_tid=[6246]}, 88) = 6246 [pid 6246] <... rseq resumed>) = 0 [pid 6245] rt_sigprocmask(SIG_SETMASK, [], [pid 6246] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6246] <... set_robust_list resumed>) = 0 [pid 6245] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6246] rt_sigprocmask(SIG_SETMASK, [], [pid 6245] <... futex resumed>) = 0 [pid 6246] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6245] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6246] memfd_create("syzkaller", 0) = 3 [pid 6246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6246] 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"..., 16777216) = 16777216 [pid 6246] munmap(0x7f3be0600000, 138412032) = 0 [pid 6246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6246] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6246] ioctl(4, LOOP_CLR_FD) = 0 [pid 6246] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6246] close(4) = 0 [pid 6246] close(3) = 0 [pid 6246] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6245] <... futex resumed>) = 0 [pid 6246] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6245] exit_group(0) = ? [pid 6246] <... futex resumed>) = ? [pid 6246] +++ exited with 0 +++ [pid 6245] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6245, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6247 attached , child_tidptr=0x55557b776690) = 6247 [pid 6247] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6247] setpgid(0, 0) = 0 [pid 6247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6247] write(3, "1000", 4) = 4 [pid 6247] close(3) = 0 [pid 6247] write(1, "executing program\n", 18executing program ) = 18 [pid 6247] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6247] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6247] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6247] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6247] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6247] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6248 attached => {parent_tid=[6248]}, 88) = 6248 [pid 6247] rt_sigprocmask(SIG_SETMASK, [], [pid 6248] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6247] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6247] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6248] <... rseq resumed>) = 0 [pid 6247] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6248] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6248] memfd_create("syzkaller", 0) = 3 [pid 6248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6248] 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"..., 16777216) = 16777216 [pid 6248] munmap(0x7f3be0600000, 138412032) = 0 [pid 6248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6248] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6248] ioctl(4, LOOP_CLR_FD) = 0 [pid 6248] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6248] close(4) = 0 [pid 6248] close(3) = 0 [pid 6248] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6247] <... futex resumed>) = 0 [pid 6247] exit_group(0) = ? [pid 6248] <... futex resumed>) = ? [pid 6248] +++ exited with 0 +++ [pid 6247] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6247, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6249 attached , child_tidptr=0x55557b776690) = 6249 [pid 6249] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6249] setpgid(0, 0) = 0 [pid 6249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6249] write(3, "1000", 4) = 4 [pid 6249] close(3) = 0 [pid 6249] write(1, "executing program\n", 18executing program ) = 18 [pid 6249] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6249] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6249] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6249] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6249] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6249] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6250 attached [pid 6250] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6249] <... clone3 resumed> => {parent_tid=[6250]}, 88) = 6250 [pid 6250] <... rseq resumed>) = 0 [pid 6249] rt_sigprocmask(SIG_SETMASK, [], [pid 6250] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6249] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6250] <... set_robust_list resumed>) = 0 [pid 6249] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6250] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6249] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6250] memfd_create("syzkaller", 0) = 3 [pid 6250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6250] 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"..., 16777216) = 16777216 [pid 6250] munmap(0x7f3be0600000, 138412032) = 0 [pid 6250] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6250] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6250] ioctl(4, LOOP_CLR_FD) = 0 [pid 6250] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6250] close(4) = 0 [pid 6250] close(3) = 0 [pid 6250] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6249] <... futex resumed>) = 0 [pid 6250] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6249] exit_group(0 [pid 6250] <... futex resumed>) = ? [pid 6249] <... exit_group resumed>) = ? [pid 6250] +++ exited with 0 +++ [pid 6249] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6249, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 6251 attached , child_tidptr=0x55557b776690) = 6251 [pid 6251] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6251] setpgid(0, 0) = 0 [pid 6251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6251] write(3, "1000", 4) = 4 [pid 6251] close(3) = 0 executing program [pid 6251] write(1, "executing program\n", 18) = 18 [pid 6251] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6251] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6251] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6251] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6251] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6251] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6252 attached [pid 6252] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6251] <... clone3 resumed> => {parent_tid=[6252]}, 88) = 6252 [pid 6252] <... rseq resumed>) = 0 [pid 6251] rt_sigprocmask(SIG_SETMASK, [], [pid 6252] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6251] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6252] <... set_robust_list resumed>) = 0 [pid 6251] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6252] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6251] <... futex resumed>) = 0 [pid 6252] memfd_create("syzkaller", 0 [pid 6251] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6252] <... memfd_create resumed>) = 3 [pid 6252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6252] 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"..., 16777216) = 16777216 [pid 6252] munmap(0x7f3be0600000, 138412032) = 0 [pid 6252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6252] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6252] ioctl(4, LOOP_CLR_FD) = 0 [pid 6252] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6252] close(4) = 0 [pid 6252] close(3) = 0 [pid 6252] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6252] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6251] <... futex resumed>) = 0 [pid 6251] exit_group(0 [pid 6252] <... futex resumed>) = ? [pid 6251] <... exit_group resumed>) = ? [pid 6252] +++ exited with 0 +++ [pid 6251] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6251, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6253 attached , child_tidptr=0x55557b776690) = 6253 [pid 6253] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6253] setpgid(0, 0) = 0 [pid 6253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6253] write(3, "1000", 4) = 4 [pid 6253] close(3) = 0 executing program [pid 6253] write(1, "executing program\n", 18) = 18 [pid 6253] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6253] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6253] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6253] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6253] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6253] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6254 attached [pid 6254] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6253] <... clone3 resumed> => {parent_tid=[6254]}, 88) = 6254 [pid 6254] <... rseq resumed>) = 0 [pid 6253] rt_sigprocmask(SIG_SETMASK, [], [pid 6254] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6253] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6254] <... set_robust_list resumed>) = 0 [pid 6253] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6254] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6253] <... futex resumed>) = 0 [pid 6254] memfd_create("syzkaller", 0 [pid 6253] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6254] <... memfd_create resumed>) = 3 [pid 6254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6254] 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"..., 16777216) = 16777216 [pid 6254] munmap(0x7f3be0600000, 138412032) = 0 [pid 6254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6254] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6254] ioctl(4, LOOP_CLR_FD) = 0 [pid 6254] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6254] close(4) = 0 [pid 6254] close(3) = 0 [pid 6254] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6254] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6253] <... futex resumed>) = 0 [pid 6253] exit_group(0 [pid 6254] <... futex resumed>) = ? [pid 6253] <... exit_group resumed>) = ? [pid 6254] +++ exited with 0 +++ [pid 6253] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6253, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6255 attached , child_tidptr=0x55557b776690) = 6255 [pid 6255] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6255] setpgid(0, 0) = 0 [pid 6255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6255] write(3, "1000", 4) = 4 [pid 6255] close(3) = 0 [pid 6255] write(1, "executing program\n", 18executing program ) = 18 [pid 6255] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6255] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6255] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6256 attached => {parent_tid=[6256]}, 88) = 6256 [pid 6256] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6255] rt_sigprocmask(SIG_SETMASK, [], [pid 6256] <... rseq resumed>) = 0 [pid 6255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6256] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6255] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6256] <... set_robust_list resumed>) = 0 [pid 6256] rt_sigprocmask(SIG_SETMASK, [], [pid 6255] <... futex resumed>) = 0 [pid 6256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6255] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6256] memfd_create("syzkaller", 0) = 3 [pid 6256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6256] 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"..., 16777216) = 16777216 [pid 6256] munmap(0x7f3be0600000, 138412032) = 0 [pid 6256] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6256] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6256] ioctl(4, LOOP_CLR_FD) = 0 [pid 6256] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6256] close(4) = 0 [pid 6256] close(3) = 0 [pid 6256] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6255] <... futex resumed>) = 0 [pid 6256] <... futex resumed>) = 1 [pid 6255] exit_group(0) = ? [pid 6256] +++ exited with 0 +++ [pid 6255] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6255, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6257 attached , child_tidptr=0x55557b776690) = 6257 [pid 6257] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6257] setpgid(0, 0) = 0 [pid 6257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6257] write(3, "1000", 4) = 4 [pid 6257] close(3) = 0 [pid 6257] write(1, "executing program\n", 18executing program ) = 18 [pid 6257] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6257] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6257] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6257] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6258 attached [pid 6258] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6257] <... clone3 resumed> => {parent_tid=[6258]}, 88) = 6258 [pid 6258] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6257] rt_sigprocmask(SIG_SETMASK, [], [pid 6258] <... set_robust_list resumed>) = 0 [pid 6257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6258] rt_sigprocmask(SIG_SETMASK, [], [pid 6257] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6258] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6257] <... futex resumed>) = 0 [pid 6258] memfd_create("syzkaller", 0) = 3 [pid 6257] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6258] 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"..., 16777216) = 16777216 [pid 6258] munmap(0x7f3be0600000, 138412032) = 0 [pid 6258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6258] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6258] ioctl(4, LOOP_CLR_FD) = 0 [pid 6258] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6258] close(4) = 0 [pid 6258] close(3) = 0 [pid 6258] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6257] <... futex resumed>) = 0 [pid 6258] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6257] exit_group(0) = ? [pid 6258] <... futex resumed>) = ? [pid 6258] +++ exited with 0 +++ [pid 6257] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6257, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6259 attached , child_tidptr=0x55557b776690) = 6259 [pid 6259] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6259] setpgid(0, 0) = 0 [pid 6259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6259] write(3, "1000", 4) = 4 [pid 6259] close(3) = 0 executing program [pid 6259] write(1, "executing program\n", 18) = 18 [pid 6259] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6259] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6259] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6259] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6259] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6260 attached => {parent_tid=[6260]}, 88) = 6260 [pid 6260] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6259] rt_sigprocmask(SIG_SETMASK, [], [pid 6260] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6259] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6260] <... set_robust_list resumed>) = 0 [pid 6259] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6260] rt_sigprocmask(SIG_SETMASK, [], [pid 6259] <... futex resumed>) = 0 [pid 6260] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6259] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6260] memfd_create("syzkaller", 0) = 3 [pid 6260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6260] 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"..., 16777216) = 16777216 [pid 6260] munmap(0x7f3be0600000, 138412032) = 0 [pid 6260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6260] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6260] ioctl(4, LOOP_CLR_FD) = 0 [pid 6260] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6260] close(4) = 0 [pid 6260] close(3) = 0 [pid 6260] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6259] <... futex resumed>) = 0 [pid 6260] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6259] exit_group(0 [pid 6260] <... futex resumed>) = ? [pid 6259] <... exit_group resumed>) = ? [pid 6260] +++ exited with 0 +++ [pid 6259] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6259, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 6261 attached , child_tidptr=0x55557b776690) = 6261 [pid 6261] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6261] setpgid(0, 0) = 0 [pid 6261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6261] write(3, "1000", 4) = 4 [pid 6261] close(3) = 0 executing program [pid 6261] write(1, "executing program\n", 18) = 18 [pid 6261] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6261] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6261] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6261] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6261] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6261] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6261] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6262 attached [pid 6262] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6261] <... clone3 resumed> => {parent_tid=[6262]}, 88) = 6262 [pid 6262] <... rseq resumed>) = 0 [pid 6261] rt_sigprocmask(SIG_SETMASK, [], [pid 6262] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6261] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6262] <... set_robust_list resumed>) = 0 [pid 6261] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6262] rt_sigprocmask(SIG_SETMASK, [], [pid 6261] <... futex resumed>) = 0 [pid 6262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6261] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6262] memfd_create("syzkaller", 0) = 3 [pid 6262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6262] 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"..., 16777216) = 16777216 [pid 6262] munmap(0x7f3be0600000, 138412032) = 0 [pid 6262] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6262] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6262] ioctl(4, LOOP_CLR_FD) = 0 [pid 6262] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6262] close(4) = 0 [pid 6262] close(3) = 0 [pid 6262] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6262] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6261] <... futex resumed>) = 0 [pid 6261] exit_group(0) = ? [pid 6262] <... futex resumed>) = ? [pid 6262] +++ exited with 0 +++ [pid 6261] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6261, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6263 attached , child_tidptr=0x55557b776690) = 6263 [pid 6263] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6263] setpgid(0, 0) = 0 [pid 6263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6263] write(3, "1000", 4) = 4 [pid 6263] close(3) = 0 [pid 6263] write(1, "executing program\n", 18executing program ) = 18 [pid 6263] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6263] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6263] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6263] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6264 attached [pid 6264] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6263] <... clone3 resumed> => {parent_tid=[6264]}, 88) = 6264 [pid 6264] <... rseq resumed>) = 0 [pid 6263] rt_sigprocmask(SIG_SETMASK, [], [pid 6264] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6264] <... set_robust_list resumed>) = 0 [pid 6263] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6263] <... futex resumed>) = 0 [pid 6264] memfd_create("syzkaller", 0 [pid 6263] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6264] <... memfd_create resumed>) = 3 [pid 6264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6264] 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"..., 16777216) = 16777216 [pid 6264] munmap(0x7f3be0600000, 138412032) = 0 [pid 6264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6264] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6264] ioctl(4, LOOP_CLR_FD) = 0 [pid 6264] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6264] close(4) = 0 [pid 6264] close(3) = 0 [pid 6264] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6263] <... futex resumed>) = 0 [pid 6264] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6263] exit_group(0) = ? [pid 6264] <... futex resumed>) = ? [pid 6264] +++ exited with 0 +++ [pid 6263] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6263, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6265 attached , child_tidptr=0x55557b776690) = 6265 [pid 6265] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6265] setpgid(0, 0) = 0 [pid 6265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6265] write(3, "1000", 4) = 4 [pid 6265] close(3) = 0 executing program [pid 6265] write(1, "executing program\n", 18) = 18 [pid 6265] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6265] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6265] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6265] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6265] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6266 attached [pid 6266] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6265] <... clone3 resumed> => {parent_tid=[6266]}, 88) = 6266 [pid 6266] <... rseq resumed>) = 0 [pid 6265] rt_sigprocmask(SIG_SETMASK, [], [pid 6266] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6265] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6266] <... set_robust_list resumed>) = 0 [pid 6265] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6266] rt_sigprocmask(SIG_SETMASK, [], [pid 6265] <... futex resumed>) = 0 [pid 6266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6265] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6266] memfd_create("syzkaller", 0) = 3 [pid 6266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6266] 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"..., 16777216) = 16777216 [pid 6266] munmap(0x7f3be0600000, 138412032) = 0 [pid 6266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6266] ioctl(4, LOOP_CLR_FD) = 0 [pid 6266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6266] close(4) = 0 [pid 6266] close(3) = 0 [pid 6266] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6266] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6265] <... futex resumed>) = 0 [pid 6265] exit_group(0) = ? [pid 6266] <... futex resumed>) = ? [pid 6266] +++ exited with 0 +++ [pid 6265] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6265, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6267 attached , child_tidptr=0x55557b776690) = 6267 [pid 6267] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6267] setpgid(0, 0) = 0 [pid 6267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6267] write(3, "1000", 4) = 4 [pid 6267] close(3) = 0 [pid 6267] write(1, "executing program\n", 18executing program ) = 18 [pid 6267] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6267] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6267] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6267] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6267] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6267] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6267] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[6268]}, 88) = 6268 ./strace-static-x86_64: Process 6268 attached [pid 6268] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6267] rt_sigprocmask(SIG_SETMASK, [], [pid 6268] <... rseq resumed>) = 0 [pid 6268] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6267] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6268] <... set_robust_list resumed>) = 0 [pid 6267] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6268] rt_sigprocmask(SIG_SETMASK, [], [pid 6267] <... futex resumed>) = 0 [pid 6268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6267] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6268] memfd_create("syzkaller", 0) = 3 [pid 6268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6268] 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"..., 16777216) = 16777216 [pid 6268] munmap(0x7f3be0600000, 138412032) = 0 [pid 6268] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6268] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6268] ioctl(4, LOOP_CLR_FD) = 0 [pid 6268] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6268] close(4) = 0 [pid 6268] close(3) = 0 [pid 6268] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6267] <... futex resumed>) = 0 [pid 6267] exit_group(0) = ? [pid 6268] <... futex resumed>) = ? [pid 6268] +++ exited with 0 +++ [pid 6267] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6267, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6269 attached , child_tidptr=0x55557b776690) = 6269 [pid 6269] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6269] setpgid(0, 0) = 0 [pid 6269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6269] write(3, "1000", 4) = 4 [pid 6269] close(3) = 0 [pid 6269] write(1, "executing program\n", 18executing program ) = 18 [pid 6269] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6269] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6269] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6269] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6270 attached => {parent_tid=[6270]}, 88) = 6270 [pid 6270] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6269] rt_sigprocmask(SIG_SETMASK, [], [pid 6270] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6270] <... set_robust_list resumed>) = 0 [pid 6269] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6270] rt_sigprocmask(SIG_SETMASK, [], [pid 6269] <... futex resumed>) = 0 [pid 6270] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6269] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6270] memfd_create("syzkaller", 0) = 3 [pid 6270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6270] 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"..., 16777216) = 16777216 [pid 6270] munmap(0x7f3be0600000, 138412032) = 0 [pid 6270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6270] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6270] ioctl(4, LOOP_CLR_FD) = 0 [pid 6270] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6270] close(4) = 0 [pid 6270] close(3) = 0 [pid 6270] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6269] <... futex resumed>) = 0 [pid 6270] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6269] exit_group(0) = ? [pid 6270] <... futex resumed>) = ? [pid 6270] +++ exited with 0 +++ [pid 6269] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6269, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6271 attached , child_tidptr=0x55557b776690) = 6271 [pid 6271] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6271] setpgid(0, 0) = 0 [pid 6271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6271] write(3, "1000", 4) = 4 [pid 6271] close(3) = 0 executing program [pid 6271] write(1, "executing program\n", 18) = 18 [pid 6271] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6271] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6271] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6271] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6271] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6271] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6272 attached [pid 6272] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6271] <... clone3 resumed> => {parent_tid=[6272]}, 88) = 6272 [pid 6272] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6271] rt_sigprocmask(SIG_SETMASK, [], [pid 6272] <... set_robust_list resumed>) = 0 [pid 6271] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6272] rt_sigprocmask(SIG_SETMASK, [], [pid 6271] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6272] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6272] memfd_create("syzkaller", 0 [pid 6271] <... futex resumed>) = 0 [pid 6272] <... memfd_create resumed>) = 3 [pid 6271] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6272] 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"..., 16777216) = 16777216 [pid 6272] munmap(0x7f3be0600000, 138412032) = 0 [pid 6272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6272] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6272] ioctl(4, LOOP_CLR_FD) = 0 [pid 6272] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6272] close(4) = 0 [pid 6272] close(3) = 0 [pid 6272] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6271] <... futex resumed>) = 0 [pid 6272] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6271] exit_group(0 [pid 6272] <... futex resumed>) = ? [pid 6272] +++ exited with 0 +++ [pid 6271] <... exit_group resumed>) = ? [pid 6271] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6271, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6273 attached , child_tidptr=0x55557b776690) = 6273 [pid 6273] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6273] setpgid(0, 0) = 0 [pid 6273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6273] write(3, "1000", 4) = 4 [pid 6273] close(3) = 0 executing program [pid 6273] write(1, "executing program\n", 18) = 18 [pid 6273] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6273] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6273] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6273] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6273] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6273] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6274 attached [pid 6274] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6273] <... clone3 resumed> => {parent_tid=[6274]}, 88) = 6274 [pid 6274] <... rseq resumed>) = 0 [pid 6273] rt_sigprocmask(SIG_SETMASK, [], [pid 6274] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6273] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6274] <... set_robust_list resumed>) = 0 [pid 6273] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6273] <... futex resumed>) = 0 [pid 6274] memfd_create("syzkaller", 0 [pid 6273] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6274] <... memfd_create resumed>) = 3 [pid 6274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6274] 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"..., 16777216) = 16777216 [pid 6274] munmap(0x7f3be0600000, 138412032) = 0 [pid 6274] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6274] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6274] ioctl(4, LOOP_CLR_FD) = 0 [pid 6274] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6274] close(4) = 0 [pid 6274] close(3) = 0 [pid 6274] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6273] <... futex resumed>) = 0 [pid 6273] exit_group(0 [pid 6274] <... futex resumed>) = ? [pid 6274] +++ exited with 0 +++ [pid 6273] <... exit_group resumed>) = ? [pid 6273] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6273, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6275 attached , child_tidptr=0x55557b776690) = 6275 [pid 6275] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6275] setpgid(0, 0) = 0 [pid 6275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6275] write(3, "1000", 4) = 4 [pid 6275] close(3) = 0 executing program [pid 6275] write(1, "executing program\n", 18) = 18 [pid 6275] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6275] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6275] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6275] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6275] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6275] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6276 attached [pid 6276] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6275] <... clone3 resumed> => {parent_tid=[6276]}, 88) = 6276 [pid 6276] <... rseq resumed>) = 0 [pid 6275] rt_sigprocmask(SIG_SETMASK, [], [pid 6276] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6275] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6276] <... set_robust_list resumed>) = 0 [pid 6275] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6276] rt_sigprocmask(SIG_SETMASK, [], [pid 6275] <... futex resumed>) = 0 [pid 6276] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6275] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6276] memfd_create("syzkaller", 0) = 3 [pid 6276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6276] 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"..., 16777216) = 16777216 [pid 6276] munmap(0x7f3be0600000, 138412032) = 0 [pid 6276] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6276] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6276] ioctl(4, LOOP_CLR_FD) = 0 [pid 6276] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6276] close(4) = 0 [pid 6276] close(3) = 0 [pid 6276] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6275] <... futex resumed>) = 0 [pid 6275] exit_group(0) = ? [pid 6276] +++ exited with 0 +++ [pid 6275] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6275, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 6277 attached , child_tidptr=0x55557b776690) = 6277 [pid 6277] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6277] setpgid(0, 0) = 0 [pid 6277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6277] write(3, "1000", 4) = 4 [pid 6277] close(3) = 0 executing program [pid 6277] write(1, "executing program\n", 18) = 18 [pid 6277] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6277] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6277] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6277] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6278 attached [pid 6278] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6277] <... clone3 resumed> => {parent_tid=[6278]}, 88) = 6278 [pid 6278] <... rseq resumed>) = 0 [pid 6277] rt_sigprocmask(SIG_SETMASK, [], [pid 6278] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6277] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6278] <... set_robust_list resumed>) = 0 [pid 6277] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6278] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6277] <... futex resumed>) = 0 [pid 6278] memfd_create("syzkaller", 0 [pid 6277] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6278] <... memfd_create resumed>) = 3 [pid 6278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6278] 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"..., 16777216) = 16777216 [pid 6278] munmap(0x7f3be0600000, 138412032) = 0 [pid 6278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6278] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6278] ioctl(4, LOOP_CLR_FD) = 0 [pid 6278] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6278] close(4) = 0 [pid 6278] close(3) = 0 [pid 6278] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6277] <... futex resumed>) = 0 [pid 6277] exit_group(0 [pid 6278] <... futex resumed>) = ? [pid 6277] <... exit_group resumed>) = ? [pid 6278] +++ exited with 0 +++ [pid 6277] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6277, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6279 attached , child_tidptr=0x55557b776690) = 6279 [pid 6279] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6279] setpgid(0, 0) = 0 [pid 6279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6279] write(3, "1000", 4) = 4 [pid 6279] close(3) = 0 executing program [pid 6279] write(1, "executing program\n", 18) = 18 [pid 6279] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6279] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6279] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6279] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6279] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6279] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6280 attached [pid 6280] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6279] <... clone3 resumed> => {parent_tid=[6280]}, 88) = 6280 [pid 6280] <... rseq resumed>) = 0 [pid 6279] rt_sigprocmask(SIG_SETMASK, [], [pid 6280] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6279] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6280] <... set_robust_list resumed>) = 0 [pid 6279] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6280] rt_sigprocmask(SIG_SETMASK, [], [pid 6279] <... futex resumed>) = 0 [pid 6280] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6279] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6280] memfd_create("syzkaller", 0) = 3 [pid 6280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6280] 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"..., 16777216) = 16777216 [pid 6280] munmap(0x7f3be0600000, 138412032) = 0 [pid 6280] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6280] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6280] ioctl(4, LOOP_CLR_FD) = 0 [pid 6280] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6280] close(4) = 0 [pid 6280] close(3) = 0 [pid 6280] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6280] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6279] <... futex resumed>) = 0 [pid 6279] exit_group(0 [pid 6280] <... futex resumed>) = ? [pid 6279] <... exit_group resumed>) = ? [pid 6280] +++ exited with 0 +++ [pid 6279] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6279, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6281 attached , child_tidptr=0x55557b776690) = 6281 [pid 6281] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6281] setpgid(0, 0) = 0 [pid 6281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6281] write(3, "1000", 4) = 4 [pid 6281] close(3) = 0 [pid 6281] write(1, "executing program\n", 18executing program ) = 18 [pid 6281] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6281] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6281] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6281] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6281] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6281] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6282 attached [pid 6282] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6281] <... clone3 resumed> => {parent_tid=[6282]}, 88) = 6282 [pid 6282] <... rseq resumed>) = 0 [pid 6281] rt_sigprocmask(SIG_SETMASK, [], [pid 6282] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6282] <... set_robust_list resumed>) = 0 [pid 6281] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6281] <... futex resumed>) = 0 [pid 6282] memfd_create("syzkaller", 0 [pid 6281] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6282] <... memfd_create resumed>) = 3 [pid 6282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6282] 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"..., 16777216) = 16777216 [pid 6282] munmap(0x7f3be0600000, 138412032) = 0 [pid 6282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6282] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6282] ioctl(4, LOOP_CLR_FD) = 0 [pid 6282] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6282] close(4) = 0 [pid 6282] close(3) = 0 [pid 6282] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6281] <... futex resumed>) = 0 [pid 6282] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6281] exit_group(0 [pid 6282] <... futex resumed>) = ? [pid 6281] <... exit_group resumed>) = ? [pid 6282] +++ exited with 0 +++ [pid 6281] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6281, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6283 attached , child_tidptr=0x55557b776690) = 6283 [pid 6283] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6283] setpgid(0, 0) = 0 [pid 6283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6283] write(3, "1000", 4) = 4 [pid 6283] close(3) = 0 [pid 6283] write(1, "executing program\n", 18executing program ) = 18 [pid 6283] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6283] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6283] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6283] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6283] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6283] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6284 attached => {parent_tid=[6284]}, 88) = 6284 [pid 6283] rt_sigprocmask(SIG_SETMASK, [], [pid 6284] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6284] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6283] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6284] <... set_robust_list resumed>) = 0 [pid 6283] <... futex resumed>) = 0 [pid 6284] rt_sigprocmask(SIG_SETMASK, [], [pid 6283] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6284] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6284] memfd_create("syzkaller", 0) = 3 [pid 6284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6284] 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"..., 16777216) = 16777216 [pid 6284] munmap(0x7f3be0600000, 138412032) = 0 [pid 6284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6284] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6284] ioctl(4, LOOP_CLR_FD) = 0 [pid 6284] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6284] close(4) = 0 [pid 6284] close(3) = 0 [pid 6284] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6283] <... futex resumed>) = 0 [pid 6283] exit_group(0 [pid 6284] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6283] <... exit_group resumed>) = ? [pid 6284] <... futex resumed>) = ? [pid 6284] +++ exited with 0 +++ [pid 6283] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6283, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6285 attached , child_tidptr=0x55557b776690) = 6285 [pid 6285] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6285] setpgid(0, 0) = 0 [pid 6285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6285] write(3, "1000", 4) = 4 [pid 6285] close(3) = 0 [pid 6285] write(1, "executing program\n", 18executing program ) = 18 [pid 6285] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6285] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6285] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6285] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6285] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6285] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6286 attached [pid 6286] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6285] <... clone3 resumed> => {parent_tid=[6286]}, 88) = 6286 [pid 6286] <... rseq resumed>) = 0 [pid 6286] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6285] rt_sigprocmask(SIG_SETMASK, [], [pid 6286] <... set_robust_list resumed>) = 0 [pid 6285] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6286] rt_sigprocmask(SIG_SETMASK, [], [pid 6285] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6285] <... futex resumed>) = 0 [pid 6285] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6286] memfd_create("syzkaller", 0) = 3 [pid 6286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6286] 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"..., 16777216) = 16777216 [pid 6286] munmap(0x7f3be0600000, 138412032) = 0 [pid 6286] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6286] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6286] ioctl(4, LOOP_CLR_FD) = 0 [pid 6286] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6286] close(4) = 0 [pid 6286] close(3) = 0 [pid 6286] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6285] <... futex resumed>) = 0 [pid 6286] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6285] exit_group(0 [pid 6286] <... futex resumed>) = ? [pid 6286] +++ exited with 0 +++ [pid 6285] <... exit_group resumed>) = ? [pid 6285] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6285, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6287 attached , child_tidptr=0x55557b776690) = 6287 [pid 6287] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6287] setpgid(0, 0) = 0 [pid 6287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6287] write(3, "1000", 4) = 4 [pid 6287] close(3) = 0 executing program [pid 6287] write(1, "executing program\n", 18) = 18 [pid 6287] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6287] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6287] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6287] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6287] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6287] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6288 attached => {parent_tid=[6288]}, 88) = 6288 [pid 6287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6288] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6287] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6288] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6287] <... futex resumed>) = 0 [pid 6288] <... set_robust_list resumed>) = 0 [pid 6287] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6288] memfd_create("syzkaller", 0) = 3 [pid 6288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6288] 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"..., 16777216) = 16777216 [pid 6288] munmap(0x7f3be0600000, 138412032) = 0 [pid 6288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6288] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6288] ioctl(4, LOOP_CLR_FD) = 0 [pid 6288] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6288] close(4) = 0 [pid 6288] close(3) = 0 [pid 6288] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6287] <... futex resumed>) = 0 [pid 6288] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6287] exit_group(0 [pid 6288] <... futex resumed>) = ? [pid 6287] <... exit_group resumed>) = ? [pid 6288] +++ exited with 0 +++ [pid 6287] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6287, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6289 attached , child_tidptr=0x55557b776690) = 6289 [pid 6289] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6289] setpgid(0, 0) = 0 [pid 6289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6289] write(3, "1000", 4) = 4 [pid 6289] close(3) = 0 [pid 6289] write(1, "executing program\n", 18executing program ) = 18 [pid 6289] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6289] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6289] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6289] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6289] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6289] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6290 attached [pid 6290] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6289] <... clone3 resumed> => {parent_tid=[6290]}, 88) = 6290 [pid 6290] <... rseq resumed>) = 0 [pid 6289] rt_sigprocmask(SIG_SETMASK, [], [pid 6290] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6289] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6290] <... set_robust_list resumed>) = 0 [pid 6289] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6290] rt_sigprocmask(SIG_SETMASK, [], [pid 6289] <... futex resumed>) = 0 [pid 6290] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6289] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6290] memfd_create("syzkaller", 0) = 3 [pid 6290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6290] 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"..., 16777216) = 16777216 [pid 6290] munmap(0x7f3be0600000, 138412032) = 0 [pid 6290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6290] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6290] ioctl(4, LOOP_CLR_FD) = 0 [pid 6290] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6290] close(4) = 0 [pid 6290] close(3) = 0 [pid 6290] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6289] <... futex resumed>) = 0 [pid 6289] exit_group(0 [pid 6290] <... futex resumed>) = ? [pid 6289] <... exit_group resumed>) = ? [pid 6290] +++ exited with 0 +++ [pid 6289] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6289, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6291 attached , child_tidptr=0x55557b776690) = 6291 [pid 6291] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6291] setpgid(0, 0) = 0 [pid 6291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6291] write(3, "1000", 4) = 4 [pid 6291] close(3) = 0 [pid 6291] write(1, "executing program\n", 18executing program ) = 18 [pid 6291] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6291] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6291] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6291] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6291] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6292 attached => {parent_tid=[6292]}, 88) = 6292 [pid 6291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6292] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6291] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6292] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6291] <... futex resumed>) = 0 [pid 6292] <... set_robust_list resumed>) = 0 [pid 6292] rt_sigprocmask(SIG_SETMASK, [], [pid 6291] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6292] memfd_create("syzkaller", 0) = 3 [pid 6292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6292] 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"..., 16777216) = 16777216 [pid 6292] munmap(0x7f3be0600000, 138412032) = 0 [pid 6292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6292] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6292] ioctl(4, LOOP_CLR_FD) = 0 [pid 6292] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6292] close(4) = 0 [pid 6292] close(3) = 0 [pid 6292] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6292] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6291] <... futex resumed>) = 0 [pid 6291] exit_group(0) = ? [pid 6292] <... futex resumed>) = ? [pid 6292] +++ exited with 0 +++ [pid 6291] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6291, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- 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 6293 attached , child_tidptr=0x55557b776690) = 6293 [pid 6293] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6293] setpgid(0, 0) = 0 [pid 6293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6293] write(3, "1000", 4) = 4 [pid 6293] close(3) = 0 [pid 6293] write(1, "executing program\n", 18executing program ) = 18 [pid 6293] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6293] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6293] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6293] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6293] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6293] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6294 attached => {parent_tid=[6294]}, 88) = 6294 [pid 6293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6293] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6294] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6293] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6294] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6294] memfd_create("syzkaller", 0) = 3 [pid 6294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6294] 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"..., 16777216) = 16777216 [pid 6294] munmap(0x7f3be0600000, 138412032) = 0 [pid 6294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6294] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6294] ioctl(4, LOOP_CLR_FD) = 0 [pid 6294] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6294] close(4) = 0 [pid 6294] close(3) = 0 [pid 6294] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6294] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6293] <... futex resumed>) = 0 [pid 6293] exit_group(0) = ? [pid 6294] <... futex resumed>) = ? [pid 6294] +++ exited with 0 +++ [pid 6293] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6293, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6295 attached , child_tidptr=0x55557b776690) = 6295 [pid 6295] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6295] setpgid(0, 0) = 0 [pid 6295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6295] write(3, "1000", 4) = 4 [pid 6295] close(3) = 0 [pid 6295] write(1, "executing program\n", 18executing program ) = 18 [pid 6295] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6295] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6295] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6295] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6295] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6295] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6296 attached [pid 6296] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6295] <... clone3 resumed> => {parent_tid=[6296]}, 88) = 6296 [pid 6296] <... rseq resumed>) = 0 [pid 6295] rt_sigprocmask(SIG_SETMASK, [], [pid 6296] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6295] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6296] <... set_robust_list resumed>) = 0 [pid 6295] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6296] rt_sigprocmask(SIG_SETMASK, [], [pid 6295] <... futex resumed>) = 0 [pid 6296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6296] memfd_create("syzkaller", 0 [pid 6295] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6296] <... memfd_create resumed>) = 3 [pid 6296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6296] 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"..., 16777216) = 16777216 [pid 6296] munmap(0x7f3be0600000, 138412032) = 0 [pid 6296] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6296] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6296] ioctl(4, LOOP_CLR_FD) = 0 [pid 6296] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6296] close(4) = 0 [pid 6296] close(3) = 0 [pid 6296] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6295] <... futex resumed>) = 0 [pid 6296] <... futex resumed>) = 1 [pid 6295] exit_group(0 [pid 6296] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6295] <... exit_group resumed>) = ? [pid 6296] +++ exited with 0 +++ [pid 6295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6295, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- 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 6297 attached , child_tidptr=0x55557b776690) = 6297 [pid 6297] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6297] setpgid(0, 0) = 0 [pid 6297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6297] write(3, "1000", 4) = 4 [pid 6297] close(3) = 0 [pid 6297] write(1, "executing program\n", 18executing program ) = 18 [pid 6297] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6297] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6297] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6297] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6297] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6298 attached => {parent_tid=[6298]}, 88) = 6298 [pid 6298] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6298] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6297] rt_sigprocmask(SIG_SETMASK, [], [pid 6298] <... set_robust_list resumed>) = 0 [pid 6298] rt_sigprocmask(SIG_SETMASK, [], [pid 6297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6297] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6298] memfd_create("syzkaller", 0 [pid 6297] <... futex resumed>) = 0 [pid 6297] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6298] <... memfd_create resumed>) = 3 [pid 6298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6298] 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"..., 16777216) = 16777216 [pid 6298] munmap(0x7f3be0600000, 138412032) = 0 [pid 6298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6298] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6298] ioctl(4, LOOP_CLR_FD) = 0 [pid 6298] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6298] close(4) = 0 [pid 6298] close(3) = 0 [pid 6298] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6297] <... futex resumed>) = 0 [pid 6298] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6297] exit_group(0) = ? [pid 6298] <... futex resumed>) = ? [pid 6298] +++ exited with 0 +++ [pid 6297] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6297, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6299 attached , child_tidptr=0x55557b776690) = 6299 [pid 6299] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6299] setpgid(0, 0) = 0 [pid 6299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6299] write(3, "1000", 4) = 4 [pid 6299] close(3) = 0 [pid 6299] write(1, "executing program\n", 18executing program ) = 18 [pid 6299] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6299] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6299] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6299] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6300 attached [pid 6300] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6299] <... clone3 resumed> => {parent_tid=[6300]}, 88) = 6300 [pid 6300] <... rseq resumed>) = 0 [pid 6300] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6299] rt_sigprocmask(SIG_SETMASK, [], [pid 6300] <... set_robust_list resumed>) = 0 [pid 6299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6300] rt_sigprocmask(SIG_SETMASK, [], [pid 6299] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6300] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6299] <... futex resumed>) = 0 [pid 6299] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6300] memfd_create("syzkaller", 0) = 3 [pid 6300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6300] 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"..., 16777216) = 16777216 [pid 6300] munmap(0x7f3be0600000, 138412032) = 0 [pid 6300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6300] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6300] ioctl(4, LOOP_CLR_FD) = 0 [pid 6300] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6300] close(4) = 0 [pid 6300] close(3) = 0 [pid 6300] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6299] <... futex resumed>) = 0 [pid 6300] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6299] exit_group(0) = ? [pid 6300] <... futex resumed>) = ? [pid 6300] +++ exited with 0 +++ [pid 6299] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6299, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6301 attached , child_tidptr=0x55557b776690) = 6301 [pid 6301] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6301] setpgid(0, 0) = 0 [pid 6301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6301] write(3, "1000", 4) = 4 [pid 6301] close(3) = 0 executing program [pid 6301] write(1, "executing program\n", 18) = 18 [pid 6301] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6301] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6301] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6301] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6301] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6302 attached [pid 6302] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6301] <... clone3 resumed> => {parent_tid=[6302]}, 88) = 6302 [pid 6302] <... rseq resumed>) = 0 [pid 6301] rt_sigprocmask(SIG_SETMASK, [], [pid 6302] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6301] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6302] <... set_robust_list resumed>) = 0 [pid 6301] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6301] <... futex resumed>) = 0 [pid 6302] memfd_create("syzkaller", 0 [pid 6301] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6302] <... memfd_create resumed>) = 3 [pid 6302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6302] 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"..., 16777216) = 16777216 [pid 6302] munmap(0x7f3be0600000, 138412032) = 0 [pid 6302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6302] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6302] ioctl(4, LOOP_CLR_FD) = 0 [pid 6302] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6302] close(4) = 0 [pid 6302] close(3) = 0 [pid 6302] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6302] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6301] <... futex resumed>) = 0 [pid 6301] exit_group(0 [pid 6302] <... futex resumed>) = ? [pid 6301] <... exit_group resumed>) = ? [pid 6302] +++ exited with 0 +++ [pid 6301] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6301, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6303 attached , child_tidptr=0x55557b776690) = 6303 [pid 6303] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6303] setpgid(0, 0) = 0 [pid 6303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6303] write(3, "1000", 4) = 4 [pid 6303] close(3) = 0 [pid 6303] write(1, "executing program\n", 18executing program ) = 18 [pid 6303] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6303] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6303] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6303] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6303] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6303] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6304 attached [pid 6304] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6303] <... clone3 resumed> => {parent_tid=[6304]}, 88) = 6304 [pid 6304] <... rseq resumed>) = 0 [pid 6303] rt_sigprocmask(SIG_SETMASK, [], [pid 6304] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6304] <... set_robust_list resumed>) = 0 [pid 6303] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6303] <... futex resumed>) = 0 [pid 6304] memfd_create("syzkaller", 0 [pid 6303] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6304] <... memfd_create resumed>) = 3 [pid 6304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6304] 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"..., 16777216) = 16777216 [pid 6304] munmap(0x7f3be0600000, 138412032) = 0 [pid 6304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6304] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6304] ioctl(4, LOOP_CLR_FD) = 0 [pid 6304] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6304] close(4) = 0 [pid 6304] close(3) = 0 [pid 6304] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6303] <... futex resumed>) = 0 [pid 6304] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6303] exit_group(0 [pid 6304] <... futex resumed>) = ? [pid 6303] <... exit_group resumed>) = ? [pid 6304] +++ exited with 0 +++ [pid 6303] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6303, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6305 attached , child_tidptr=0x55557b776690) = 6305 [pid 6305] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6305] setpgid(0, 0) = 0 [pid 6305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6305] write(3, "1000", 4) = 4 [pid 6305] close(3) = 0 [pid 6305] write(1, "executing program\n", 18executing program ) = 18 [pid 6305] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6305] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6305] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6305] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6305] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6305] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6306 attached [pid 6306] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6305] <... clone3 resumed> => {parent_tid=[6306]}, 88) = 6306 [pid 6306] <... rseq resumed>) = 0 [pid 6305] rt_sigprocmask(SIG_SETMASK, [], [pid 6306] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6305] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6306] <... set_robust_list resumed>) = 0 [pid 6305] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6305] <... futex resumed>) = 0 [pid 6305] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6306] memfd_create("syzkaller", 0) = 3 [pid 6306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6306] 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"..., 16777216) = 16777216 [pid 6306] munmap(0x7f3be0600000, 138412032) = 0 [pid 6306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6306] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6306] ioctl(4, LOOP_CLR_FD) = 0 [pid 6306] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6306] close(4) = 0 [pid 6306] close(3) = 0 [pid 6306] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6305] <... futex resumed>) = 0 [pid 6306] <... futex resumed>) = 1 [pid 6305] exit_group(0 [pid 6306] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6305] <... exit_group resumed>) = ? [pid 6306] <... futex resumed>) = ? [pid 6306] +++ exited with 0 +++ [pid 6305] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6305, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6307 attached , child_tidptr=0x55557b776690) = 6307 [pid 6307] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6307] setpgid(0, 0) = 0 [pid 6307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6307] write(3, "1000", 4) = 4 [pid 6307] close(3) = 0 [pid 6307] write(1, "executing program\n", 18executing program ) = 18 [pid 6307] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6307] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6307] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6307] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6307] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6307] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6308 attached [pid 6308] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6307] <... clone3 resumed> => {parent_tid=[6308]}, 88) = 6308 [pid 6308] <... rseq resumed>) = 0 [pid 6307] rt_sigprocmask(SIG_SETMASK, [], [pid 6308] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6307] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6308] <... set_robust_list resumed>) = 0 [pid 6307] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6308] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6307] <... futex resumed>) = 0 [pid 6307] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6308] memfd_create("syzkaller", 0) = 3 [pid 6308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6308] 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"..., 16777216) = 16777216 [pid 6308] munmap(0x7f3be0600000, 138412032) = 0 [pid 6308] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6308] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6308] ioctl(4, LOOP_CLR_FD) = 0 [pid 6308] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6308] close(4) = 0 [pid 6308] close(3) = 0 [pid 6308] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6307] <... futex resumed>) = 0 [pid 6308] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6307] exit_group(0 [pid 6308] <... futex resumed>) = ? [pid 6307] <... exit_group resumed>) = ? [pid 6308] +++ exited with 0 +++ [pid 6307] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6307, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6309 attached , child_tidptr=0x55557b776690) = 6309 [pid 6309] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6309] setpgid(0, 0) = 0 [pid 6309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6309] write(3, "1000", 4) = 4 [pid 6309] close(3) = 0 executing program [pid 6309] write(1, "executing program\n", 18) = 18 [pid 6309] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6309] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6309] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6309] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6309] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6309] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6310 attached => {parent_tid=[6310]}, 88) = 6310 [pid 6309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6309] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6310] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6309] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6310] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6310] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6310] memfd_create("syzkaller", 0) = 3 [pid 6310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6310] 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"..., 16777216) = 16777216 [pid 6310] munmap(0x7f3be0600000, 138412032) = 0 [pid 6310] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6310] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6310] ioctl(4, LOOP_CLR_FD) = 0 [pid 6310] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6310] close(4) = 0 [pid 6310] close(3) = 0 [pid 6310] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6309] <... futex resumed>) = 0 [pid 6310] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6309] exit_group(0) = ? [pid 6310] <... futex resumed>) = ? [pid 6310] +++ exited with 0 +++ [pid 6309] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6309, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6311 attached , child_tidptr=0x55557b776690) = 6311 [pid 6311] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6311] setpgid(0, 0) = 0 [pid 6311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6311] write(3, "1000", 4) = 4 [pid 6311] close(3) = 0 executing program [pid 6311] write(1, "executing program\n", 18) = 18 [pid 6311] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6311] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6311] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6311] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6311] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6311] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6312 attached [pid 6312] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6311] <... clone3 resumed> => {parent_tid=[6312]}, 88) = 6312 [pid 6312] <... rseq resumed>) = 0 [pid 6311] rt_sigprocmask(SIG_SETMASK, [], [pid 6312] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6311] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6312] <... set_robust_list resumed>) = 0 [pid 6311] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6312] rt_sigprocmask(SIG_SETMASK, [], [pid 6311] <... futex resumed>) = 0 [pid 6312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6311] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6312] memfd_create("syzkaller", 0) = 3 [pid 6312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6312] 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"..., 16777216) = 16777216 [pid 6312] munmap(0x7f3be0600000, 138412032) = 0 [pid 6312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6312] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6312] ioctl(4, LOOP_CLR_FD) = 0 [pid 6312] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6312] close(4) = 0 [pid 6312] close(3) = 0 [pid 6312] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6311] <... futex resumed>) = 0 [pid 6312] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6311] exit_group(0 [pid 6312] <... futex resumed>) = ? [pid 6312] +++ exited with 0 +++ [pid 6311] <... exit_group resumed>) = ? [pid 6311] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6311, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6313 attached , child_tidptr=0x55557b776690) = 6313 [pid 6313] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6313] setpgid(0, 0) = 0 [pid 6313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6313] write(3, "1000", 4) = 4 [pid 6313] close(3) = 0 executing program [pid 6313] write(1, "executing program\n", 18) = 18 [pid 6313] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6313] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6313] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6313] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6313] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6313] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6314 attached [pid 6314] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6314] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6314] rt_sigprocmask(SIG_SETMASK, [], [pid 6313] <... clone3 resumed> => {parent_tid=[6314]}, 88) = 6314 [pid 6314] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6313] rt_sigprocmask(SIG_SETMASK, [], [pid 6314] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6313] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6314] <... futex resumed>) = 0 [pid 6313] <... futex resumed>) = 1 [pid 6313] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6314] memfd_create("syzkaller", 0) = 3 [pid 6314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6314] 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"..., 16777216) = 16777216 [pid 6314] munmap(0x7f3be0600000, 138412032) = 0 [pid 6314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6314] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6314] ioctl(4, LOOP_CLR_FD) = 0 [pid 6314] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6314] close(4) = 0 [pid 6314] close(3) = 0 [pid 6314] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6313] <... futex resumed>) = 0 [pid 6314] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6313] exit_group(0 [pid 6314] <... futex resumed>) = ? [pid 6313] <... exit_group resumed>) = ? [pid 6314] +++ exited with 0 +++ [pid 6313] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6313, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 6315 attached , child_tidptr=0x55557b776690) = 6315 [pid 6315] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6315] setpgid(0, 0) = 0 [pid 6315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6315] write(3, "1000", 4) = 4 [pid 6315] close(3) = 0 [pid 6315] write(1, "executing program\n", 18executing program ) = 18 [pid 6315] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6315] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6315] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6315] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6315] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6315] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6315] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6316 attached [pid 6316] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6315] <... clone3 resumed> => {parent_tid=[6316]}, 88) = 6316 [pid 6316] <... rseq resumed>) = 0 [pid 6315] rt_sigprocmask(SIG_SETMASK, [], [pid 6316] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6316] <... set_robust_list resumed>) = 0 [pid 6315] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6315] <... futex resumed>) = 0 [pid 6316] memfd_create("syzkaller", 0 [pid 6315] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6316] <... memfd_create resumed>) = 3 [pid 6316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6316] 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"..., 16777216) = 16777216 [pid 6316] munmap(0x7f3be0600000, 138412032) = 0 [pid 6316] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6316] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6316] ioctl(4, LOOP_CLR_FD) = 0 [pid 6316] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6316] close(4) = 0 [pid 6316] close(3) = 0 [pid 6316] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6315] <... futex resumed>) = 0 [pid 6316] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6315] exit_group(0 [pid 6316] <... futex resumed>) = ? [pid 6315] <... exit_group resumed>) = ? [pid 6316] +++ exited with 0 +++ [pid 6315] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6315, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6317 attached , child_tidptr=0x55557b776690) = 6317 [pid 6317] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6317] setpgid(0, 0) = 0 [pid 6317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6317] write(3, "1000", 4) = 4 [pid 6317] close(3) = 0 executing program [pid 6317] write(1, "executing program\n", 18) = 18 [pid 6317] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6317] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6317] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6317] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6317] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6317] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0} => {parent_tid=[6318]}, 88) = 6318 ./strace-static-x86_64: Process 6318 attached [pid 6317] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6317] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6317] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6318] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6318] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6318] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6318] memfd_create("syzkaller", 0) = 3 [pid 6318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6318] 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"..., 16777216) = 16777216 [pid 6318] munmap(0x7f3be0600000, 138412032) = 0 [pid 6318] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6318] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6318] ioctl(4, LOOP_CLR_FD) = 0 [pid 6318] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6318] close(4) = 0 [pid 6318] close(3) = 0 [pid 6318] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6317] <... futex resumed>) = 0 [pid 6318] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6317] exit_group(0 [pid 6318] <... futex resumed>) = ? [pid 6317] <... exit_group resumed>) = ? [pid 6318] +++ exited with 0 +++ [pid 6317] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6317, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6319 attached , child_tidptr=0x55557b776690) = 6319 [pid 6319] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6319] setpgid(0, 0) = 0 [pid 6319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6319] write(3, "1000", 4) = 4 [pid 6319] close(3) = 0 [pid 6319] write(1, "executing program\n", 18executing program ) = 18 [pid 6319] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6319] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6319] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6319] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6319] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6319] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6320 attached [pid 6320] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6319] <... clone3 resumed> => {parent_tid=[6320]}, 88) = 6320 [pid 6320] <... rseq resumed>) = 0 [pid 6319] rt_sigprocmask(SIG_SETMASK, [], [pid 6320] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6320] <... set_robust_list resumed>) = 0 [pid 6319] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6320] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6319] <... futex resumed>) = 0 [pid 6320] memfd_create("syzkaller", 0 [pid 6319] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6320] <... memfd_create resumed>) = 3 [pid 6320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6320] 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"..., 16777216) = 16777216 [pid 6320] munmap(0x7f3be0600000, 138412032) = 0 [pid 6320] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6320] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6320] ioctl(4, LOOP_CLR_FD) = 0 [pid 6320] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6320] close(4) = 0 [pid 6320] close(3) = 0 [pid 6320] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6319] <... futex resumed>) = 0 [pid 6319] exit_group(0 [pid 6320] <... futex resumed>) = ? [pid 6319] <... exit_group resumed>) = ? [pid 6320] +++ exited with 0 +++ [pid 6319] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6319, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 6321 attached , child_tidptr=0x55557b776690) = 6321 [pid 6321] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6321] setpgid(0, 0) = 0 [pid 6321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6321] write(3, "1000", 4) = 4 [pid 6321] close(3) = 0 executing program [pid 6321] write(1, "executing program\n", 18) = 18 [pid 6321] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6321] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6321] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6321] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6321] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6322 attached [pid 6322] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6321] <... clone3 resumed> => {parent_tid=[6322]}, 88) = 6322 [pid 6322] <... rseq resumed>) = 0 [pid 6321] rt_sigprocmask(SIG_SETMASK, [], [pid 6322] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6322] <... set_robust_list resumed>) = 0 [pid 6321] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6321] <... futex resumed>) = 0 [pid 6322] memfd_create("syzkaller", 0 [pid 6321] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6322] <... memfd_create resumed>) = 3 [pid 6322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6322] 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"..., 16777216) = 16777216 [pid 6322] munmap(0x7f3be0600000, 138412032) = 0 [pid 6322] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6322] ioctl(4, LOOP_CLR_FD) = 0 [pid 6322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6322] close(4) = 0 [pid 6322] close(3) = 0 [pid 6322] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6321] <... futex resumed>) = 0 [pid 6321] exit_group(0) = ? [pid 6322] +++ exited with 0 +++ [pid 6321] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6321, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6323 attached , child_tidptr=0x55557b776690) = 6323 [pid 6323] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6323] setpgid(0, 0) = 0 [pid 6323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6323] write(3, "1000", 4) = 4 [pid 6323] close(3) = 0 executing program [pid 6323] write(1, "executing program\n", 18) = 18 [pid 6323] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6323] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6323] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6323] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6323] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6323] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6324 attached [pid 6324] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6323] <... clone3 resumed> => {parent_tid=[6324]}, 88) = 6324 [pid 6324] <... rseq resumed>) = 0 [pid 6323] rt_sigprocmask(SIG_SETMASK, [], [pid 6324] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6324] <... set_robust_list resumed>) = 0 [pid 6323] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6324] rt_sigprocmask(SIG_SETMASK, [], [pid 6323] <... futex resumed>) = 0 [pid 6324] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6323] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6324] memfd_create("syzkaller", 0) = 3 [pid 6324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6324] 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"..., 16777216) = 16777216 [pid 6324] munmap(0x7f3be0600000, 138412032) = 0 [pid 6324] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6324] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6324] ioctl(4, LOOP_CLR_FD) = 0 [pid 6324] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6324] close(4) = 0 [pid 6324] close(3) = 0 [pid 6324] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6323] <... futex resumed>) = 0 [pid 6324] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6323] exit_group(0 [pid 6324] <... futex resumed>) = ? [pid 6323] <... exit_group resumed>) = ? [pid 6324] +++ exited with 0 +++ [pid 6323] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6323, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- 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 6325 attached , child_tidptr=0x55557b776690) = 6325 [pid 6325] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6325] setpgid(0, 0) = 0 [pid 6325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6325] write(3, "1000", 4) = 4 [pid 6325] close(3) = 0 [pid 6325] write(1, "executing program\n", 18executing program ) = 18 [pid 6325] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6325] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6325] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6325] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6325] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6325] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6326 attached [pid 6326] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6325] <... clone3 resumed> => {parent_tid=[6326]}, 88) = 6326 [pid 6326] <... rseq resumed>) = 0 [pid 6325] rt_sigprocmask(SIG_SETMASK, [], [pid 6326] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6325] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6326] <... set_robust_list resumed>) = 0 [pid 6325] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6325] <... futex resumed>) = 0 [pid 6326] memfd_create("syzkaller", 0 [pid 6325] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6326] <... memfd_create resumed>) = 3 [pid 6326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6326] 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"..., 16777216) = 16777216 [pid 6326] munmap(0x7f3be0600000, 138412032) = 0 [pid 6326] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6326] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6326] ioctl(4, LOOP_CLR_FD) = 0 [pid 6326] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6326] close(4) = 0 [pid 6326] close(3) = 0 [pid 6326] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6325] <... futex resumed>) = 0 [pid 6326] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6325] exit_group(0 [pid 6326] <... futex resumed>) = ? [pid 6325] <... exit_group resumed>) = ? [pid 6326] +++ exited with 0 +++ [pid 6325] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6325, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6327 attached , child_tidptr=0x55557b776690) = 6327 [pid 6327] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6327] setpgid(0, 0) = 0 [pid 6327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6327] write(3, "1000", 4) = 4 [pid 6327] close(3) = 0 [pid 6327] write(1, "executing program\n", 18executing program ) = 18 [pid 6327] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6327] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6327] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6327] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6327] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6327] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6327] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6328 attached => {parent_tid=[6328]}, 88) = 6328 [pid 6328] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6327] rt_sigprocmask(SIG_SETMASK, [], [pid 6328] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6327] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6328] <... set_robust_list resumed>) = 0 [pid 6327] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6328] rt_sigprocmask(SIG_SETMASK, [], [pid 6327] <... futex resumed>) = 0 [pid 6328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6327] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6328] memfd_create("syzkaller", 0) = 3 [pid 6328] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6328] 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"..., 16777216) = 16777216 [pid 6328] munmap(0x7f3be0600000, 138412032) = 0 [pid 6328] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6328] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6328] ioctl(4, LOOP_CLR_FD) = 0 [pid 6328] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6328] close(4) = 0 [pid 6328] close(3) = 0 [pid 6328] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6328] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6327] <... futex resumed>) = 0 [pid 6327] exit_group(0 [pid 6328] <... futex resumed>) = ? [pid 6327] <... exit_group resumed>) = ? [pid 6328] +++ exited with 0 +++ [pid 6327] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6327, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6329 attached , child_tidptr=0x55557b776690) = 6329 [pid 6329] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6329] setpgid(0, 0) = 0 [pid 6329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6329] write(3, "1000", 4) = 4 [pid 6329] close(3) = 0 [pid 6329] write(1, "executing program\n", 18executing program ) = 18 [pid 6329] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6329] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6329] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6329] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6329] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6329] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6329] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6330 attached [pid 6330] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6329] <... clone3 resumed> => {parent_tid=[6330]}, 88) = 6330 [pid 6329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6329] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6330] <... rseq resumed>) = 0 [pid 6330] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6329] <... futex resumed>) = 0 [pid 6330] <... set_robust_list resumed>) = 0 [pid 6329] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6330] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6330] memfd_create("syzkaller", 0) = 3 [pid 6330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6330] 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"..., 16777216) = 16777216 [pid 6330] munmap(0x7f3be0600000, 138412032) = 0 [pid 6330] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6330] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6330] ioctl(4, LOOP_CLR_FD) = 0 [pid 6330] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6330] close(4) = 0 [pid 6330] close(3) = 0 [pid 6330] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6330] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6329] <... futex resumed>) = 0 [pid 6329] exit_group(0) = ? [pid 6330] <... futex resumed>) = ? [pid 6330] +++ exited with 0 +++ [pid 6329] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6329, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6331 attached , child_tidptr=0x55557b776690) = 6331 [pid 6331] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6331] setpgid(0, 0) = 0 [pid 6331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6331] write(3, "1000", 4) = 4 [pid 6331] close(3) = 0 [pid 6331] write(1, "executing program\n", 18executing program ) = 18 [pid 6331] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6331] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6331] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6331] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6331] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6331] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6332 attached [pid 6332] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6331] <... clone3 resumed> => {parent_tid=[6332]}, 88) = 6332 [pid 6332] <... rseq resumed>) = 0 [pid 6331] rt_sigprocmask(SIG_SETMASK, [], [pid 6332] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6332] <... set_robust_list resumed>) = 0 [pid 6331] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6331] <... futex resumed>) = 0 [pid 6332] memfd_create("syzkaller", 0 [pid 6331] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6332] <... memfd_create resumed>) = 3 [pid 6332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6332] 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"..., 16777216) = 16777216 [pid 6332] munmap(0x7f3be0600000, 138412032) = 0 [pid 6332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6332] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6332] ioctl(4, LOOP_CLR_FD) = 0 [pid 6332] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6332] close(4) = 0 [pid 6332] close(3) = 0 [pid 6332] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6331] <... futex resumed>) = 0 [pid 6331] exit_group(0 [pid 6332] <... futex resumed>) = ? [pid 6331] <... exit_group resumed>) = ? [pid 6332] +++ exited with 0 +++ [pid 6331] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6331, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 6333 attached , child_tidptr=0x55557b776690) = 6333 [pid 6333] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6333] setpgid(0, 0) = 0 [pid 6333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6333] write(3, "1000", 4) = 4 [pid 6333] close(3executing program ) = 0 [pid 6333] write(1, "executing program\n", 18) = 18 [pid 6333] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6333] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6333] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6333] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6333] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6333] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6334 attached [pid 6334] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6333] <... clone3 resumed> => {parent_tid=[6334]}, 88) = 6334 [pid 6334] <... rseq resumed>) = 0 [pid 6333] rt_sigprocmask(SIG_SETMASK, [], [pid 6334] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6334] <... set_robust_list resumed>) = 0 [pid 6333] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6333] <... futex resumed>) = 0 [pid 6334] memfd_create("syzkaller", 0 [pid 6333] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6334] <... memfd_create resumed>) = 3 [pid 6334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6334] 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"..., 16777216) = 16777216 [pid 6334] munmap(0x7f3be0600000, 138412032) = 0 [pid 6334] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6334] ioctl(4, LOOP_CLR_FD) = 0 [pid 6334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6334] close(4) = 0 [pid 6334] close(3) = 0 [pid 6334] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6333] <... futex resumed>) = 0 [pid 6334] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6333] exit_group(0) = ? [pid 6334] <... futex resumed>) = ? [pid 6334] +++ exited with 0 +++ [pid 6333] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6333, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6335 attached , child_tidptr=0x55557b776690) = 6335 [pid 6335] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6335] setpgid(0, 0) = 0 [pid 6335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6335] write(3, "1000", 4) = 4 [pid 6335] close(3) = 0 [pid 6335] write(1, "executing program\n", 18executing program ) = 18 [pid 6335] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6335] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6335] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6335] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6335] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6335] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6336 attached [pid 6336] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6336] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6336] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6335] <... clone3 resumed> => {parent_tid=[6336]}, 88) = 6336 [pid 6336] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6335] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6335] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6336] <... futex resumed>) = 0 [pid 6336] memfd_create("syzkaller", 0 [pid 6335] <... futex resumed>) = 1 [pid 6336] <... memfd_create resumed>) = 3 [pid 6335] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6336] 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"..., 16777216) = 16777216 [pid 6336] munmap(0x7f3be0600000, 138412032) = 0 [pid 6336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6336] ioctl(4, LOOP_CLR_FD) = 0 [pid 6336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6336] close(4) = 0 [pid 6336] close(3) = 0 [pid 6336] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6335] <... futex resumed>) = 0 [pid 6336] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6335] exit_group(0 [pid 6336] <... futex resumed>) = ? [pid 6336] +++ exited with 0 +++ [pid 6335] <... exit_group resumed>) = ? [pid 6335] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6335, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- 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 6337 attached , child_tidptr=0x55557b776690) = 6337 [pid 6337] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6337] setpgid(0, 0) = 0 [pid 6337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6337] write(3, "1000", 4) = 4 [pid 6337] close(3) = 0 [pid 6337] write(1, "executing program\n", 18executing program ) = 18 [pid 6337] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6337] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6337] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6337] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6337] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6338 attached [pid 6338] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6337] <... clone3 resumed> => {parent_tid=[6338]}, 88) = 6338 [pid 6338] <... rseq resumed>) = 0 [pid 6337] rt_sigprocmask(SIG_SETMASK, [], [pid 6338] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6338] <... set_robust_list resumed>) = 0 [pid 6337] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6337] <... futex resumed>) = 0 [pid 6338] memfd_create("syzkaller", 0 [pid 6337] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6338] <... memfd_create resumed>) = 3 [pid 6338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6338] 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"..., 16777216) = 16777216 [pid 6338] munmap(0x7f3be0600000, 138412032) = 0 [pid 6338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6338] ioctl(4, LOOP_CLR_FD) = 0 [pid 6338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6338] close(4) = 0 [pid 6338] close(3) = 0 [pid 6338] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6338] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6337] <... futex resumed>) = 0 [pid 6337] exit_group(0) = ? [pid 6338] <... futex resumed>) = ? [pid 6338] +++ exited with 0 +++ [pid 6337] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6337, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6339 attached , child_tidptr=0x55557b776690) = 6339 [pid 6339] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6339] setpgid(0, 0) = 0 [pid 6339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6339] write(3, "1000", 4) = 4 [pid 6339] close(3) = 0 executing program [pid 6339] write(1, "executing program\n", 18) = 18 [pid 6339] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6339] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6339] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6339] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6339] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6339] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6340 attached [pid 6340] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6339] <... clone3 resumed> => {parent_tid=[6340]}, 88) = 6340 [pid 6340] <... rseq resumed>) = 0 [pid 6339] rt_sigprocmask(SIG_SETMASK, [], [pid 6340] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6340] <... set_robust_list resumed>) = 0 [pid 6339] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6340] rt_sigprocmask(SIG_SETMASK, [], [pid 6339] <... futex resumed>) = 0 [pid 6340] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6339] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6340] memfd_create("syzkaller", 0) = 3 [pid 6340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6340] 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"..., 16777216) = 16777216 [pid 6340] munmap(0x7f3be0600000, 138412032) = 0 [pid 6340] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6340] ioctl(4, LOOP_CLR_FD) = 0 [pid 6340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6340] close(4) = 0 [pid 6340] close(3) = 0 [pid 6340] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6339] <... futex resumed>) = 0 [pid 6339] exit_group(0) = ? [pid 6340] <... futex resumed>) = ? [pid 6340] +++ exited with 0 +++ [pid 6339] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6339, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6341 attached , child_tidptr=0x55557b776690) = 6341 [pid 6341] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6341] setpgid(0, 0) = 0 [pid 6341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6341] write(3, "1000", 4) = 4 [pid 6341] close(3) = 0 [pid 6341] write(1, "executing program\n", 18executing program ) = 18 [pid 6341] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6341] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6341] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6341] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6341] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6341] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6342 attached => {parent_tid=[6342]}, 88) = 6342 [pid 6341] rt_sigprocmask(SIG_SETMASK, [], [pid 6342] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6342] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6341] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6342] <... set_robust_list resumed>) = 0 [pid 6341] <... futex resumed>) = 0 [pid 6342] rt_sigprocmask(SIG_SETMASK, [], [pid 6341] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6342] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6342] memfd_create("syzkaller", 0) = 3 [pid 6342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6342] 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"..., 16777216) = 16777216 [pid 6342] munmap(0x7f3be0600000, 138412032) = 0 [pid 6342] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6342] ioctl(4, LOOP_CLR_FD) = 0 [pid 6342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6342] close(4) = 0 [pid 6342] close(3) = 0 [pid 6342] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6342] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6341] <... futex resumed>) = 0 [pid 6341] exit_group(0 [pid 6342] <... futex resumed>) = ? [pid 6341] <... exit_group resumed>) = ? [pid 6342] +++ exited with 0 +++ [pid 6341] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6341, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6343 attached , child_tidptr=0x55557b776690) = 6343 [pid 6343] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6343] setpgid(0, 0) = 0 [pid 6343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6343] write(3, "1000", 4) = 4 [pid 6343] close(3) = 0 executing program [pid 6343] write(1, "executing program\n", 18) = 18 [pid 6343] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6343] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6343] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6343] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6343] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6343] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6344 attached [pid 6344] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6344] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6344] rt_sigprocmask(SIG_SETMASK, [], [pid 6343] <... clone3 resumed> => {parent_tid=[6344]}, 88) = 6344 [pid 6344] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6343] rt_sigprocmask(SIG_SETMASK, [], [pid 6344] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6343] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6343] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6344] <... futex resumed>) = 0 [pid 6343] <... futex resumed>) = 1 [pid 6344] memfd_create("syzkaller", 0 [pid 6343] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6344] <... memfd_create resumed>) = 3 [pid 6344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6344] 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"..., 16777216) = 16777216 [pid 6344] munmap(0x7f3be0600000, 138412032) = 0 [pid 6344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6344] ioctl(4, LOOP_CLR_FD) = 0 [pid 6344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6344] close(4) = 0 [pid 6344] close(3) = 0 [pid 6344] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6343] <... futex resumed>) = 0 [pid 6344] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6343] exit_group(0 [pid 6344] <... futex resumed>) = ? [pid 6343] <... exit_group resumed>) = ? [pid 6344] +++ exited with 0 +++ [pid 6343] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6343, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- 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 6345 attached , child_tidptr=0x55557b776690) = 6345 [pid 6345] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6345] setpgid(0, 0) = 0 [pid 6345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6345] write(3, "1000", 4) = 4 [pid 6345] close(3) = 0 [pid 6345] write(1, "executing program\n", 18executing program ) = 18 [pid 6345] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6345] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6345] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6345] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6345] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6346 attached [pid 6346] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6345] <... clone3 resumed> => {parent_tid=[6346]}, 88) = 6346 [pid 6346] <... rseq resumed>) = 0 [pid 6345] rt_sigprocmask(SIG_SETMASK, [], [pid 6346] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6346] <... set_robust_list resumed>) = 0 [pid 6345] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6345] <... futex resumed>) = 0 [pid 6346] memfd_create("syzkaller", 0 [pid 6345] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6346] <... memfd_create resumed>) = 3 [pid 6346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6346] 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"..., 16777216) = 16777216 [pid 6346] munmap(0x7f3be0600000, 138412032) = 0 [pid 6346] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6346] ioctl(4, LOOP_CLR_FD) = 0 [pid 6346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6346] close(4) = 0 [pid 6346] close(3) = 0 [pid 6346] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6345] <... futex resumed>) = 0 [pid 6345] exit_group(0 [pid 6346] <... futex resumed>) = ? [pid 6345] <... exit_group resumed>) = ? [pid 6346] +++ exited with 0 +++ [pid 6345] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6345, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 6347 attached , child_tidptr=0x55557b776690) = 6347 [pid 6347] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6347] setpgid(0, 0) = 0 [pid 6347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6347] write(3, "1000", 4) = 4 [pid 6347] close(3) = 0 executing program [pid 6347] write(1, "executing program\n", 18) = 18 [pid 6347] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6347] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6347] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6347] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6347] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6347] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6348 attached => {parent_tid=[6348]}, 88) = 6348 [pid 6347] rt_sigprocmask(SIG_SETMASK, [], [pid 6348] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6347] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6348] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6347] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6348] <... set_robust_list resumed>) = 0 [pid 6347] <... futex resumed>) = 0 [pid 6348] rt_sigprocmask(SIG_SETMASK, [], [pid 6347] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6348] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6348] memfd_create("syzkaller", 0) = 3 [pid 6348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6348] 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"..., 16777216) = 16777216 [pid 6348] munmap(0x7f3be0600000, 138412032) = 0 [pid 6348] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6348] ioctl(4, LOOP_CLR_FD) = 0 [pid 6348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6348] close(4) = 0 [pid 6348] close(3) = 0 [pid 6348] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6347] <... futex resumed>) = 0 [pid 6348] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6347] exit_group(0 [pid 6348] <... futex resumed>) = ? [pid 6348] +++ exited with 0 +++ [pid 6347] <... exit_group resumed>) = ? [pid 6347] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6347, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6349 attached , child_tidptr=0x55557b776690) = 6349 [pid 6349] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6349] setpgid(0, 0) = 0 [pid 6349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6349] write(3, "1000", 4) = 4 [pid 6349] close(3) = 0 [pid 6349] write(1, "executing program\n", 18executing program ) = 18 [pid 6349] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6349] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6349] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6349] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6349] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6350 attached [pid 6350] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6349] <... clone3 resumed> => {parent_tid=[6350]}, 88) = 6350 [pid 6350] <... rseq resumed>) = 0 [pid 6349] rt_sigprocmask(SIG_SETMASK, [], [pid 6350] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6350] <... set_robust_list resumed>) = 0 [pid 6349] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6349] <... futex resumed>) = 0 [pid 6350] memfd_create("syzkaller", 0 [pid 6349] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6350] <... memfd_create resumed>) = 3 [pid 6350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6350] 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"..., 16777216) = 16777216 [pid 6350] munmap(0x7f3be0600000, 138412032) = 0 [pid 6350] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6350] ioctl(4, LOOP_CLR_FD) = 0 [pid 6350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6350] close(4) = 0 [pid 6350] close(3) = 0 [pid 6350] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6350] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6349] <... futex resumed>) = 0 [pid 6349] exit_group(0) = ? [pid 6350] <... futex resumed>) = ? [pid 6350] +++ exited with 0 +++ [pid 6349] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6349, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- 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 6351 attached , child_tidptr=0x55557b776690) = 6351 [pid 6351] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6351] setpgid(0, 0) = 0 [pid 6351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6351] write(3, "1000", 4) = 4 [pid 6351] close(3) = 0 [pid 6351] write(1, "executing program\n", 18executing program ) = 18 [pid 6351] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6351] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6351] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6351] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6351] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6351] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6352 attached [pid 6352] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6351] <... clone3 resumed> => {parent_tid=[6352]}, 88) = 6352 [pid 6352] <... rseq resumed>) = 0 [pid 6351] rt_sigprocmask(SIG_SETMASK, [], [pid 6352] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6351] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6352] <... set_robust_list resumed>) = 0 [pid 6351] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6352] rt_sigprocmask(SIG_SETMASK, [], [pid 6351] <... futex resumed>) = 0 [pid 6352] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6351] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6352] memfd_create("syzkaller", 0) = 3 [pid 6352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6352] 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"..., 16777216) = 16777216 [pid 6352] munmap(0x7f3be0600000, 138412032) = 0 [pid 6352] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6352] ioctl(4, LOOP_CLR_FD) = 0 [pid 6352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6352] close(4) = 0 [pid 6352] close(3) = 0 [pid 6352] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6352] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6351] <... futex resumed>) = 0 [pid 6351] exit_group(0 [pid 6352] <... futex resumed>) = ? [pid 6351] <... exit_group resumed>) = ? [pid 6352] +++ exited with 0 +++ [pid 6351] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6351, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- 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 6353 attached , child_tidptr=0x55557b776690) = 6353 [pid 6353] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6353] setpgid(0, 0) = 0 [pid 6353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6353] write(3, "1000", 4) = 4 [pid 6353] close(3) = 0 [pid 6353] write(1, "executing program\n", 18executing program ) = 18 [pid 6353] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6353] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6353] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6353] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6353] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6353] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6354 attached [pid 6354] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6353] <... clone3 resumed> => {parent_tid=[6354]}, 88) = 6354 [pid 6354] <... rseq resumed>) = 0 [pid 6353] rt_sigprocmask(SIG_SETMASK, [], [pid 6354] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6354] <... set_robust_list resumed>) = 0 [pid 6353] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6354] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6353] <... futex resumed>) = 0 [pid 6353] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6354] memfd_create("syzkaller", 0) = 3 [pid 6354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6354] 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"..., 16777216) = 16777216 [pid 6354] munmap(0x7f3be0600000, 138412032) = 0 [pid 6354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6354] ioctl(4, LOOP_CLR_FD) = 0 [pid 6354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6354] close(4) = 0 [pid 6354] close(3) = 0 [pid 6354] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6354] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6353] <... futex resumed>) = 0 [pid 6353] exit_group(0) = ? [pid 6354] <... futex resumed>) = ? [pid 6354] +++ exited with 0 +++ [pid 6353] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6353, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 6355 attached , child_tidptr=0x55557b776690) = 6355 [pid 6355] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6355] setpgid(0, 0) = 0 [pid 6355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6355] write(3, "1000", 4) = 4 [pid 6355] close(3) = 0 executing program [pid 6355] write(1, "executing program\n", 18) = 18 [pid 6355] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6355] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6355] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6355] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6355] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6355] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6356 attached => {parent_tid=[6356]}, 88) = 6356 [pid 6356] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6356] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6355] rt_sigprocmask(SIG_SETMASK, [], [pid 6356] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6355] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6356] <... futex resumed>) = 0 [pid 6355] <... futex resumed>) = 1 [pid 6356] memfd_create("syzkaller", 0 [pid 6355] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6356] <... memfd_create resumed>) = 3 [pid 6356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6356] 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"..., 16777216) = 16777216 [pid 6356] munmap(0x7f3be0600000, 138412032) = 0 [pid 6356] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6356] ioctl(4, LOOP_CLR_FD) = 0 [pid 6356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6356] close(4) = 0 [pid 6356] close(3) = 0 [pid 6356] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6356] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6355] <... futex resumed>) = 0 [pid 6355] exit_group(0 [pid 6356] <... futex resumed>) = ? [pid 6355] <... exit_group resumed>) = ? [pid 6356] +++ exited with 0 +++ [pid 6355] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6355, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6357 attached , child_tidptr=0x55557b776690) = 6357 [pid 6357] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6357] setpgid(0, 0) = 0 [pid 6357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6357] write(3, "1000", 4) = 4 [pid 6357] close(3) = 0 executing program [pid 6357] write(1, "executing program\n", 18) = 18 [pid 6357] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6357] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6357] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6357] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6357] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6357] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6358 attached [pid 6358] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6357] <... clone3 resumed> => {parent_tid=[6358]}, 88) = 6358 [pid 6358] <... rseq resumed>) = 0 [pid 6357] rt_sigprocmask(SIG_SETMASK, [], [pid 6358] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6358] <... set_robust_list resumed>) = 0 [pid 6357] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6357] <... futex resumed>) = 0 [pid 6358] memfd_create("syzkaller", 0 [pid 6357] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6358] <... memfd_create resumed>) = 3 [pid 6358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6358] 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"..., 16777216) = 16777216 [pid 6358] munmap(0x7f3be0600000, 138412032) = 0 [pid 6358] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6358] ioctl(4, LOOP_CLR_FD) = 0 [pid 6358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6358] close(4) = 0 [pid 6358] close(3) = 0 [pid 6358] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6357] <... futex resumed>) = 0 [pid 6358] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6357] exit_group(0 [pid 6358] <... futex resumed>) = ? [pid 6357] <... exit_group resumed>) = ? [pid 6358] +++ exited with 0 +++ [pid 6357] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6357, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6359 attached , child_tidptr=0x55557b776690) = 6359 [pid 6359] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6359] setpgid(0, 0) = 0 [pid 6359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6359] write(3, "1000", 4) = 4 [pid 6359] close(3) = 0 [pid 6359] write(1, "executing program\n", 18executing program ) = 18 [pid 6359] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6359] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6359] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6359] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6359] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6359] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6360 attached [pid 6360] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6360] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6360] rt_sigprocmask(SIG_SETMASK, [], [pid 6359] <... clone3 resumed> => {parent_tid=[6360]}, 88) = 6360 [pid 6360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6359] rt_sigprocmask(SIG_SETMASK, [], [pid 6360] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6359] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6360] <... futex resumed>) = 0 [pid 6359] <... futex resumed>) = 1 [pid 6360] memfd_create("syzkaller", 0 [pid 6359] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6360] <... memfd_create resumed>) = 3 [pid 6360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6360] 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"..., 16777216) = 16777216 [pid 6360] munmap(0x7f3be0600000, 138412032) = 0 [pid 6360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6360] ioctl(4, LOOP_CLR_FD) = 0 [pid 6360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6360] close(4) = 0 [pid 6360] close(3) = 0 [pid 6360] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6359] <... futex resumed>) = 0 [pid 6360] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6359] exit_group(0 [pid 6360] <... futex resumed>) = ? [pid 6359] <... exit_group resumed>) = ? [pid 6360] +++ exited with 0 +++ [pid 6359] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6359, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6361 attached , child_tidptr=0x55557b776690) = 6361 [pid 6361] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6361] setpgid(0, 0) = 0 [pid 6361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6361] write(3, "1000", 4) = 4 [pid 6361] close(3) = 0 executing program [pid 6361] write(1, "executing program\n", 18) = 18 [pid 6361] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6361] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6361] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6361] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6361] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6361] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6362 attached [pid 6362] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6362] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6362] rt_sigprocmask(SIG_SETMASK, [], [pid 6361] <... clone3 resumed> => {parent_tid=[6362]}, 88) = 6362 [pid 6362] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6362] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6361] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6361] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6362] <... futex resumed>) = 0 [pid 6361] <... futex resumed>) = 1 [pid 6362] memfd_create("syzkaller", 0 [pid 6361] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6362] <... memfd_create resumed>) = 3 [pid 6362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6362] 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"..., 16777216) = 16777216 [pid 6362] munmap(0x7f3be0600000, 138412032) = 0 [pid 6362] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6362] ioctl(4, LOOP_CLR_FD) = 0 [pid 6362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6362] close(4) = 0 [pid 6362] close(3) = 0 [pid 6362] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6361] <... futex resumed>) = 0 [pid 6362] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6361] exit_group(0 [pid 6362] <... futex resumed>) = ? [pid 6361] <... exit_group resumed>) = ? [pid 6362] +++ exited with 0 +++ [pid 6361] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6361, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6363 attached , child_tidptr=0x55557b776690) = 6363 [pid 6363] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6363] setpgid(0, 0) = 0 [pid 6363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6363] write(3, "1000", 4) = 4 [pid 6363] close(3) = 0 executing program [pid 6363] write(1, "executing program\n", 18) = 18 [pid 6363] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6363] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6363] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6363] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6363] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6363] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6364 attached [pid 6364] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6363] <... clone3 resumed> => {parent_tid=[6364]}, 88) = 6364 [pid 6364] <... rseq resumed>) = 0 [pid 6363] rt_sigprocmask(SIG_SETMASK, [], [pid 6364] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6363] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6364] <... set_robust_list resumed>) = 0 [pid 6363] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6364] rt_sigprocmask(SIG_SETMASK, [], [pid 6363] <... futex resumed>) = 0 [pid 6364] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6364] memfd_create("syzkaller", 0 [pid 6363] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6364] <... memfd_create resumed>) = 3 [pid 6364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6364] 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"..., 16777216) = 16777216 [pid 6364] munmap(0x7f3be0600000, 138412032) = 0 [pid 6364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6364] ioctl(4, LOOP_CLR_FD) = 0 [pid 6364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6364] close(4) = 0 [pid 6364] close(3) = 0 [pid 6364] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6363] <... futex resumed>) = 0 [pid 6364] <... futex resumed>) = 1 [pid 6363] exit_group(0 [pid 6364] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6363] <... exit_group resumed>) = ? [pid 6364] +++ exited with 0 +++ [pid 6363] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6363, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6365 attached , child_tidptr=0x55557b776690) = 6365 [pid 6365] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6365] setpgid(0, 0) = 0 [pid 6365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6365] write(3, "1000", 4) = 4 [pid 6365] close(3) = 0 [pid 6365] write(1, "executing program\n", 18executing program ) = 18 [pid 6365] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6365] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6365] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6365] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6365] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6365] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6366 attached [pid 6366] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6366] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6365] <... clone3 resumed> => {parent_tid=[6366]}, 88) = 6366 [pid 6366] <... set_robust_list resumed>) = 0 [pid 6365] rt_sigprocmask(SIG_SETMASK, [], [pid 6366] rt_sigprocmask(SIG_SETMASK, [], [pid 6365] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6366] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6365] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6366] memfd_create("syzkaller", 0 [pid 6365] <... futex resumed>) = 0 [pid 6365] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6366] <... memfd_create resumed>) = 3 [pid 6366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6366] 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"..., 16777216) = 16777216 [pid 6366] munmap(0x7f3be0600000, 138412032) = 0 [pid 6366] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6366] ioctl(4, LOOP_CLR_FD) = 0 [pid 6366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6366] close(4) = 0 [pid 6366] close(3) = 0 [pid 6366] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6365] <... futex resumed>) = 0 [pid 6365] exit_group(0 [pid 6366] <... futex resumed>) = ? [pid 6365] <... exit_group resumed>) = ? [pid 6366] +++ exited with 0 +++ [pid 6365] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6365, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=12 /* 0.12 s */} --- 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 6367 attached , child_tidptr=0x55557b776690) = 6367 [pid 6367] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6367] setpgid(0, 0) = 0 [pid 6367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6367] write(3, "1000", 4) = 4 [pid 6367] close(3) = 0 [pid 6367] write(1, "executing program\n", 18executing program ) = 18 [pid 6367] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6367] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6367] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6367] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6367] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6367] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6368 attached => {parent_tid=[6368]}, 88) = 6368 [pid 6368] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6368] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6368] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6367] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6367] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6368] <... futex resumed>) = 0 [pid 6367] <... futex resumed>) = 1 [pid 6368] memfd_create("syzkaller", 0 [pid 6367] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6368] <... memfd_create resumed>) = 3 [pid 6368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6368] 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"..., 16777216) = 16777216 [pid 6368] munmap(0x7f3be0600000, 138412032) = 0 [pid 6368] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6368] ioctl(4, LOOP_CLR_FD) = 0 [pid 6368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6368] close(4) = 0 [pid 6368] close(3) = 0 [pid 6368] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6368] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6367] <... futex resumed>) = 0 [pid 6367] exit_group(0 [pid 6368] <... futex resumed>) = ? [pid 6367] <... exit_group resumed>) = ? [pid 6368] +++ exited with 0 +++ [pid 6367] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6367, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6369 attached , child_tidptr=0x55557b776690) = 6369 [pid 6369] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6369] setpgid(0, 0) = 0 [pid 6369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6369] write(3, "1000", 4) = 4 [pid 6369] close(3) = 0 [pid 6369] write(1, "executing program\n", 18executing program ) = 18 [pid 6369] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6369] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6369] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6369] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6369] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6369] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6369] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6370 attached [pid 6370] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6369] <... clone3 resumed> => {parent_tid=[6370]}, 88) = 6370 [pid 6370] <... rseq resumed>) = 0 [pid 6369] rt_sigprocmask(SIG_SETMASK, [], [pid 6370] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6369] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6369] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6370] <... set_robust_list resumed>) = 0 [pid 6369] <... futex resumed>) = 0 [pid 6369] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6370] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6370] memfd_create("syzkaller", 0) = 3 [pid 6370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6370] 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"..., 16777216) = 16777216 [pid 6370] munmap(0x7f3be0600000, 138412032) = 0 [pid 6370] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6370] ioctl(4, LOOP_CLR_FD) = 0 [pid 6370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6370] close(4) = 0 [pid 6370] close(3) = 0 [pid 6370] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6369] <... futex resumed>) = 0 [pid 6370] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6369] exit_group(0 [pid 6370] <... futex resumed>) = ? [pid 6369] <... exit_group resumed>) = ? [pid 6370] +++ exited with 0 +++ [pid 6369] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6369, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6371 attached , child_tidptr=0x55557b776690) = 6371 [pid 6371] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6371] setpgid(0, 0) = 0 [pid 6371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6371] write(3, "1000", 4) = 4 [pid 6371] close(3) = 0 executing program [pid 6371] write(1, "executing program\n", 18) = 18 [pid 6371] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6371] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6371] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6371] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6371] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6371] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6372 attached [pid 6372] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6371] <... clone3 resumed> => {parent_tid=[6372]}, 88) = 6372 [pid 6372] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6371] rt_sigprocmask(SIG_SETMASK, [], [pid 6372] <... set_robust_list resumed>) = 0 [pid 6371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6372] rt_sigprocmask(SIG_SETMASK, [], [pid 6371] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6372] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6371] <... futex resumed>) = 0 [pid 6372] memfd_create("syzkaller", 0 [pid 6371] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6372] <... memfd_create resumed>) = 3 [pid 6372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6372] 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"..., 16777216) = 16777216 [pid 6372] munmap(0x7f3be0600000, 138412032) = 0 [pid 6372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6372] ioctl(4, LOOP_CLR_FD) = 0 [pid 6372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6372] close(4) = 0 [pid 6372] close(3) = 0 [pid 6372] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6371] <... futex resumed>) = 0 [pid 6372] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6371] exit_group(0 [pid 6372] <... futex resumed>) = ? [pid 6371] <... exit_group resumed>) = ? [pid 6372] +++ exited with 0 +++ [pid 6371] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6371, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- 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 6373 attached , child_tidptr=0x55557b776690) = 6373 [pid 6373] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6373] setpgid(0, 0) = 0 [pid 6373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6373] write(3, "1000", 4) = 4 [pid 6373] close(3) = 0 executing program [pid 6373] write(1, "executing program\n", 18) = 18 [pid 6373] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6373] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6373] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6373] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6373] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6373] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6374 attached => {parent_tid=[6374]}, 88) = 6374 [pid 6373] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6374] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6373] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6374] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6373] <... futex resumed>) = 0 [pid 6374] <... set_robust_list resumed>) = 0 [pid 6373] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6374] memfd_create("syzkaller", 0) = 3 [pid 6374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6374] 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"..., 16777216) = 16777216 [pid 6374] munmap(0x7f3be0600000, 138412032) = 0 [pid 6374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6374] ioctl(4, LOOP_CLR_FD) = 0 [pid 6374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6374] close(4) = 0 [pid 6374] close(3) = 0 [pid 6374] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6374] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6373] <... futex resumed>) = 0 [pid 6373] exit_group(0) = ? [pid 6374] <... futex resumed>) = ? [pid 6374] +++ exited with 0 +++ [pid 6373] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6373, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- 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 6375 attached , child_tidptr=0x55557b776690) = 6375 [pid 6375] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6375] setpgid(0, 0) = 0 [pid 6375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6375] write(3, "1000", 4) = 4 [pid 6375] close(3) = 0 [pid 6375] write(1, "executing program\n", 18executing program ) = 18 [pid 6375] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6375] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6375] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6375] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6375] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6375] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6376 attached [pid 6376] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6375] <... clone3 resumed> => {parent_tid=[6376]}, 88) = 6376 [pid 6376] <... rseq resumed>) = 0 [pid 6375] rt_sigprocmask(SIG_SETMASK, [], [pid 6376] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6376] <... set_robust_list resumed>) = 0 [pid 6375] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6376] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6375] <... futex resumed>) = 0 [pid 6376] memfd_create("syzkaller", 0 [pid 6375] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6376] <... memfd_create resumed>) = 3 [pid 6376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6376] 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"..., 16777216) = 16777216 [pid 6376] munmap(0x7f3be0600000, 138412032) = 0 [pid 6376] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6376] ioctl(4, LOOP_CLR_FD) = 0 [pid 6376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6376] close(4) = 0 [pid 6376] close(3) = 0 [pid 6376] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6375] <... futex resumed>) = 0 [pid 6375] exit_group(0 [pid 6376] <... futex resumed>) = ? [pid 6375] <... exit_group resumed>) = ? [pid 6376] +++ exited with 0 +++ [pid 6375] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6375, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6377 attached , child_tidptr=0x55557b776690) = 6377 [pid 6377] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6377] setpgid(0, 0) = 0 [pid 6377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6377] write(3, "1000", 4) = 4 [pid 6377] close(3) = 0 executing program [pid 6377] write(1, "executing program\n", 18) = 18 [pid 6377] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6377] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6377] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6377] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6377] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6377] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6378 attached [pid 6378] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6377] <... clone3 resumed> => {parent_tid=[6378]}, 88) = 6378 [pid 6378] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6377] rt_sigprocmask(SIG_SETMASK, [], [pid 6378] <... set_robust_list resumed>) = 0 [pid 6377] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6378] rt_sigprocmask(SIG_SETMASK, [], [pid 6377] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6378] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6377] <... futex resumed>) = 0 [pid 6378] memfd_create("syzkaller", 0 [pid 6377] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6378] <... memfd_create resumed>) = 3 [pid 6378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6378] 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"..., 16777216) = 16777216 [pid 6378] munmap(0x7f3be0600000, 138412032) = 0 [pid 6378] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6378] ioctl(4, LOOP_CLR_FD) = 0 [pid 6378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6378] close(4) = 0 [pid 6378] close(3) = 0 [pid 6378] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6378] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6377] <... futex resumed>) = 0 [pid 6377] exit_group(0 [pid 6378] <... futex resumed>) = ? [pid 6377] <... exit_group resumed>) = ? [pid 6378] +++ exited with 0 +++ [pid 6377] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6377, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6379 attached , child_tidptr=0x55557b776690) = 6379 [pid 6379] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6379] setpgid(0, 0) = 0 [pid 6379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6379] write(3, "1000", 4) = 4 [pid 6379] close(3) = 0 executing program [pid 6379] write(1, "executing program\n", 18) = 18 [pid 6379] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6379] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6379] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6379] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6379] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6379] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6380 attached [pid 6380] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6379] <... clone3 resumed> => {parent_tid=[6380]}, 88) = 6380 [pid 6380] <... rseq resumed>) = 0 [pid 6379] rt_sigprocmask(SIG_SETMASK, [], [pid 6380] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6379] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6380] <... set_robust_list resumed>) = 0 [pid 6379] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6379] <... futex resumed>) = 0 [pid 6379] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6380] memfd_create("syzkaller", 0) = 3 [pid 6380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6380] 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"..., 16777216) = 16777216 [pid 6380] munmap(0x7f3be0600000, 138412032) = 0 [pid 6380] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6380] ioctl(4, LOOP_CLR_FD) = 0 [pid 6380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6380] close(4) = 0 [pid 6380] close(3) = 0 [pid 6380] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6380] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6379] <... futex resumed>) = 0 [pid 6379] exit_group(0 [pid 6380] <... futex resumed>) = ? [pid 6379] <... exit_group resumed>) = ? [pid 6380] +++ exited with 0 +++ [pid 6379] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6379, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6381 attached , child_tidptr=0x55557b776690) = 6381 [pid 6381] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6381] setpgid(0, 0) = 0 [pid 6381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6381] write(3, "1000", 4) = 4 [pid 6381] close(3) = 0 executing program [pid 6381] write(1, "executing program\n", 18) = 18 [pid 6381] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6381] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6381] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6381] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6381] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6381] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6382 attached [pid 6382] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6381] <... clone3 resumed> => {parent_tid=[6382]}, 88) = 6382 [pid 6382] <... rseq resumed>) = 0 [pid 6381] rt_sigprocmask(SIG_SETMASK, [], [pid 6382] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6382] <... set_robust_list resumed>) = 0 [pid 6381] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6382] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6381] <... futex resumed>) = 0 [pid 6381] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6382] memfd_create("syzkaller", 0) = 3 [pid 6382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6382] 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"..., 16777216) = 16777216 [pid 6382] munmap(0x7f3be0600000, 138412032) = 0 [pid 6382] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6382] ioctl(4, LOOP_CLR_FD) = 0 [pid 6382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6382] close(4) = 0 [pid 6382] close(3) = 0 [pid 6382] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6381] <... futex resumed>) = 0 [pid 6382] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6381] exit_group(0) = ? [pid 6382] <... futex resumed>) = ? [pid 6382] +++ exited with 0 +++ [pid 6381] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6381, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- 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 6383 attached , child_tidptr=0x55557b776690) = 6383 [pid 6383] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6383] setpgid(0, 0) = 0 [pid 6383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6383] write(3, "1000", 4) = 4 [pid 6383] close(3) = 0 [pid 6383] write(1, "executing program\n", 18executing program ) = 18 [pid 6383] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6383] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6383] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6383] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6383] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6383] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6384 attached => {parent_tid=[6384]}, 88) = 6384 [pid 6384] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6384] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6383] rt_sigprocmask(SIG_SETMASK, [], [pid 6384] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6383] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6384] <... futex resumed>) = 0 [pid 6383] <... futex resumed>) = 1 [pid 6384] memfd_create("syzkaller", 0 [pid 6383] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6384] <... memfd_create resumed>) = 3 [pid 6384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6384] 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"..., 16777216) = 16777216 [pid 6384] munmap(0x7f3be0600000, 138412032) = 0 [pid 6384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6384] ioctl(4, LOOP_CLR_FD) = 0 [pid 6384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6384] close(4) = 0 [pid 6384] close(3) = 0 [pid 6384] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6383] <... futex resumed>) = 0 [pid 6383] exit_group(0) = ? [pid 6384] <... futex resumed>) = ? [pid 6384] +++ exited with 0 +++ [pid 6383] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6383, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6385 attached , child_tidptr=0x55557b776690) = 6385 [pid 6385] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6385] setpgid(0, 0) = 0 [pid 6385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6385] write(3, "1000", 4) = 4 [pid 6385] close(3) = 0 executing program [pid 6385] write(1, "executing program\n", 18) = 18 [pid 6385] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6385] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6385] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6385] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6385] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6385] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6386 attached => {parent_tid=[6386]}, 88) = 6386 [pid 6385] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6385] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6386] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6385] <... futex resumed>) = 0 [pid 6386] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6385] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6386] <... set_robust_list resumed>) = 0 [pid 6386] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6386] memfd_create("syzkaller", 0) = 3 [pid 6386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6386] 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"..., 16777216) = 16777216 [pid 6386] munmap(0x7f3be0600000, 138412032) = 0 [pid 6386] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6386] ioctl(4, LOOP_CLR_FD) = 0 [pid 6386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6386] close(4) = 0 [pid 6386] close(3) = 0 [pid 6386] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6386] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6385] <... futex resumed>) = 0 [pid 6385] exit_group(0 [pid 6386] <... futex resumed>) = ? [pid 6385] <... exit_group resumed>) = ? [pid 6386] +++ exited with 0 +++ [pid 6385] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6385, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 6387 attached , child_tidptr=0x55557b776690) = 6387 [pid 6387] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6387] setpgid(0, 0) = 0 [pid 6387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6387] write(3, "1000", 4) = 4 [pid 6387] close(3) = 0 executing program [pid 6387] write(1, "executing program\n", 18) = 18 [pid 6387] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6387] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6387] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6387] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6387] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6387] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6387] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6388 attached => {parent_tid=[6388]}, 88) = 6388 [pid 6387] rt_sigprocmask(SIG_SETMASK, [], [pid 6388] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6387] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6387] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6387] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6388] <... rseq resumed>) = 0 [pid 6388] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6388] memfd_create("syzkaller", 0) = 3 [pid 6388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6388] 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"..., 16777216) = 16777216 [pid 6388] munmap(0x7f3be0600000, 138412032) = 0 [pid 6388] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6388] ioctl(4, LOOP_CLR_FD) = 0 [pid 6388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6388] close(4) = 0 [pid 6388] close(3) = 0 [pid 6388] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6387] <... futex resumed>) = 0 [pid 6388] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6387] exit_group(0 [pid 6388] <... futex resumed>) = ? [pid 6387] <... exit_group resumed>) = ? [pid 6388] +++ exited with 0 +++ [pid 6387] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6387, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6389 attached , child_tidptr=0x55557b776690) = 6389 [pid 6389] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6389] setpgid(0, 0) = 0 [pid 6389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6389] write(3, "1000", 4) = 4 [pid 6389] close(3) = 0 [pid 6389] write(1, "executing program\n", 18executing program ) = 18 [pid 6389] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6389] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6389] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6389] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6389] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6389] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6389] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6390 attached => {parent_tid=[6390]}, 88) = 6390 [pid 6389] rt_sigprocmask(SIG_SETMASK, [], [pid 6390] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6389] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6389] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6389] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6390] <... rseq resumed>) = 0 [pid 6390] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6390] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6390] memfd_create("syzkaller", 0) = 3 [pid 6390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6390] 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"..., 16777216) = 16777216 [pid 6390] munmap(0x7f3be0600000, 138412032) = 0 [pid 6390] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6390] ioctl(4, LOOP_CLR_FD) = 0 [pid 6390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6390] close(4) = 0 [pid 6390] close(3) = 0 [pid 6390] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6390] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6389] <... futex resumed>) = 0 [pid 6389] exit_group(0) = ? [pid 6390] <... futex resumed>) = ? [pid 6390] +++ exited with 0 +++ [pid 6389] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6389, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6391 attached , child_tidptr=0x55557b776690) = 6391 [pid 6391] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6391] setpgid(0, 0) = 0 [pid 6391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6391] write(3, "1000", 4) = 4 [pid 6391] close(3) = 0 executing program [pid 6391] write(1, "executing program\n", 18) = 18 [pid 6391] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6391] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6391] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6391] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6391] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6391] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6392 attached [pid 6392] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6391] <... clone3 resumed> => {parent_tid=[6392]}, 88) = 6392 [pid 6392] <... rseq resumed>) = 0 [pid 6391] rt_sigprocmask(SIG_SETMASK, [], [pid 6392] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6391] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6392] <... set_robust_list resumed>) = 0 [pid 6391] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6392] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6391] <... futex resumed>) = 0 [pid 6392] memfd_create("syzkaller", 0 [pid 6391] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6392] <... memfd_create resumed>) = 3 [pid 6392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6392] 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"..., 16777216) = 16777216 [pid 6392] munmap(0x7f3be0600000, 138412032) = 0 [pid 6392] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6392] ioctl(4, LOOP_CLR_FD) = 0 [pid 6392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6392] close(4) = 0 [pid 6392] close(3) = 0 [pid 6392] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6391] <... futex resumed>) = 0 [pid 6391] exit_group(0 [pid 6392] <... futex resumed>) = ? [pid 6391] <... exit_group resumed>) = ? [pid 6392] +++ exited with 0 +++ [pid 6391] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6391, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- 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 6393 attached , child_tidptr=0x55557b776690) = 6393 [pid 6393] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6393] setpgid(0, 0) = 0 [pid 6393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6393] write(3, "1000", 4) = 4 [pid 6393] close(3) = 0 [pid 6393] write(1, "executing program\n", 18executing program ) = 18 [pid 6393] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6393] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6393] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6393] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6393] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6393] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6394 attached [pid 6394] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6393] <... clone3 resumed> => {parent_tid=[6394]}, 88) = 6394 [pid 6394] <... rseq resumed>) = 0 [pid 6393] rt_sigprocmask(SIG_SETMASK, [], [pid 6394] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6393] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6394] <... set_robust_list resumed>) = 0 [pid 6393] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6394] rt_sigprocmask(SIG_SETMASK, [], [pid 6393] <... futex resumed>) = 0 [pid 6394] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6394] memfd_create("syzkaller", 0 [pid 6393] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6394] <... memfd_create resumed>) = 3 [pid 6394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6394] 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"..., 16777216) = 16777216 [pid 6394] munmap(0x7f3be0600000, 138412032) = 0 [pid 6394] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6394] ioctl(4, LOOP_CLR_FD) = 0 [pid 6394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6394] close(4) = 0 [pid 6394] close(3) = 0 [pid 6394] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6393] <... futex resumed>) = 0 [pid 6393] exit_group(0 [pid 6394] <... futex resumed>) = ? [pid 6393] <... exit_group resumed>) = ? [pid 6394] +++ exited with 0 +++ [pid 6393] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6393, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6395 attached , child_tidptr=0x55557b776690) = 6395 [pid 6395] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6395] setpgid(0, 0) = 0 [pid 6395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6395] write(3, "1000", 4) = 4 [pid 6395] close(3) = 0 executing program [pid 6395] write(1, "executing program\n", 18) = 18 [pid 6395] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6395] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6395] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6395] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6395] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6395] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6396 attached [pid 6396] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6395] <... clone3 resumed> => {parent_tid=[6396]}, 88) = 6396 [pid 6396] <... rseq resumed>) = 0 [pid 6395] rt_sigprocmask(SIG_SETMASK, [], [pid 6396] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6395] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6396] <... set_robust_list resumed>) = 0 [pid 6395] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6395] <... futex resumed>) = 0 [pid 6396] memfd_create("syzkaller", 0 [pid 6395] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6396] <... memfd_create resumed>) = 3 [pid 6396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6396] 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"..., 16777216) = 16777216 [pid 6396] munmap(0x7f3be0600000, 138412032) = 0 [pid 6396] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6396] ioctl(4, LOOP_CLR_FD) = 0 [pid 6396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6396] close(4) = 0 [pid 6396] close(3) = 0 [pid 6396] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6395] <... futex resumed>) = 0 [pid 6396] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6395] exit_group(0 [pid 6396] <... futex resumed>) = ? [pid 6395] <... exit_group resumed>) = ? [pid 6396] +++ exited with 0 +++ [pid 6395] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6395, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- 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 6397 attached , child_tidptr=0x55557b776690) = 6397 [pid 6397] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6397] setpgid(0, 0) = 0 [pid 6397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6397] write(3, "1000", 4) = 4 [pid 6397] close(3) = 0 [pid 6397] write(1, "executing program\n", 18executing program ) = 18 [pid 6397] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6397] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6397] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6397] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6397] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6397] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6398 attached [pid 6398] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6397] <... clone3 resumed> => {parent_tid=[6398]}, 88) = 6398 [pid 6398] <... rseq resumed>) = 0 [pid 6397] rt_sigprocmask(SIG_SETMASK, [], [pid 6398] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6397] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6398] <... set_robust_list resumed>) = 0 [pid 6397] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6397] <... futex resumed>) = 0 [pid 6397] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6398] memfd_create("syzkaller", 0) = 3 [pid 6398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6398] 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"..., 16777216) = 16777216 [pid 6398] munmap(0x7f3be0600000, 138412032) = 0 [pid 6398] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6398] ioctl(4, LOOP_CLR_FD) = 0 [pid 6398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6398] close(4) = 0 [pid 6398] close(3) = 0 [pid 6398] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6397] <... futex resumed>) = 0 [pid 6398] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6397] exit_group(0) = ? [pid 6398] <... futex resumed>) = ? [pid 6398] +++ exited with 0 +++ [pid 6397] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6397, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6399 attached , child_tidptr=0x55557b776690) = 6399 [pid 6399] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6399] setpgid(0, 0) = 0 [pid 6399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6399] write(3, "1000", 4) = 4 [pid 6399] close(3) = 0 executing program [pid 6399] write(1, "executing program\n", 18) = 18 [pid 6399] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6399] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6399] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6399] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6399] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6399] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6400 attached [pid 6400] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6399] <... clone3 resumed> => {parent_tid=[6400]}, 88) = 6400 [pid 6400] <... rseq resumed>) = 0 [pid 6399] rt_sigprocmask(SIG_SETMASK, [], [pid 6400] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6399] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6400] <... set_robust_list resumed>) = 0 [pid 6399] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6399] <... futex resumed>) = 0 [pid 6400] memfd_create("syzkaller", 0 [pid 6399] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6400] <... memfd_create resumed>) = 3 [pid 6400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6400] 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"..., 16777216) = 16777216 [pid 6400] munmap(0x7f3be0600000, 138412032) = 0 [pid 6400] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6400] ioctl(4, LOOP_CLR_FD) = 0 [pid 6400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6400] close(4) = 0 [pid 6400] close(3) = 0 [pid 6400] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6399] <... futex resumed>) = 0 [pid 6400] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6399] exit_group(0) = ? [pid 6400] <... futex resumed>) = ? [pid 6400] +++ exited with 0 +++ [pid 6399] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6399, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- 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 6401 attached , child_tidptr=0x55557b776690) = 6401 [pid 6401] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6401] setpgid(0, 0) = 0 [pid 6401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6401] write(3, "1000", 4) = 4 [pid 6401] close(3) = 0 [pid 6401] write(1, "executing program\n", 18executing program ) = 18 [pid 6401] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6401] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6401] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6401] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6401] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6401] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6402 attached [pid 6402] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6401] <... clone3 resumed> => {parent_tid=[6402]}, 88) = 6402 [pid 6402] <... rseq resumed>) = 0 [pid 6401] rt_sigprocmask(SIG_SETMASK, [], [pid 6402] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6401] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6402] <... set_robust_list resumed>) = 0 [pid 6401] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6402] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6401] <... futex resumed>) = 0 [pid 6402] memfd_create("syzkaller", 0 [pid 6401] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6402] <... memfd_create resumed>) = 3 [pid 6402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6402] 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"..., 16777216) = 16777216 [pid 6402] munmap(0x7f3be0600000, 138412032) = 0 [pid 6402] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6402] ioctl(4, LOOP_CLR_FD) = 0 [pid 6402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6402] close(4) = 0 [pid 6402] close(3) = 0 [pid 6402] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6401] <... futex resumed>) = 0 [pid 6402] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6401] exit_group(0 [pid 6402] <... futex resumed>) = ? [pid 6401] <... exit_group resumed>) = ? [pid 6402] +++ exited with 0 +++ [pid 6401] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6401, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6403 attached , child_tidptr=0x55557b776690) = 6403 [pid 6403] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6403] setpgid(0, 0) = 0 [pid 6403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6403] write(3, "1000", 4) = 4 [pid 6403] close(3) = 0 executing program [pid 6403] write(1, "executing program\n", 18) = 18 [pid 6403] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6403] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6403] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6403] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6403] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6403] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6404 attached [pid 6404] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6403] <... clone3 resumed> => {parent_tid=[6404]}, 88) = 6404 [pid 6404] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6403] rt_sigprocmask(SIG_SETMASK, [], [pid 6404] rt_sigprocmask(SIG_SETMASK, [], [pid 6403] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6404] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6403] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6404] memfd_create("syzkaller", 0 [pid 6403] <... futex resumed>) = 0 [pid 6403] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6404] <... memfd_create resumed>) = 3 [pid 6404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6404] 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"..., 16777216) = 16777216 [pid 6404] munmap(0x7f3be0600000, 138412032) = 0 [pid 6404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6404] ioctl(4, LOOP_CLR_FD) = 0 [pid 6404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6404] close(4) = 0 [pid 6404] close(3) = 0 [pid 6404] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6403] <... futex resumed>) = 0 [pid 6404] <... futex resumed>) = 1 [pid 6403] exit_group(0 [pid 6404] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6403] <... exit_group resumed>) = ? [pid 6404] +++ exited with 0 +++ [pid 6403] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6403, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 6405 attached , child_tidptr=0x55557b776690) = 6405 [pid 6405] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6405] setpgid(0, 0) = 0 [pid 6405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6405] write(3, "1000", 4) = 4 [pid 6405] close(3) = 0 executing program [pid 6405] write(1, "executing program\n", 18) = 18 [pid 6405] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6405] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6405] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6405] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6405] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6405] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6405] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6406 attached [pid 6406] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6405] <... clone3 resumed> => {parent_tid=[6406]}, 88) = 6406 [pid 6406] <... rseq resumed>) = 0 [pid 6405] rt_sigprocmask(SIG_SETMASK, [], [pid 6406] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6405] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6406] <... set_robust_list resumed>) = 0 [pid 6405] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6406] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6405] <... futex resumed>) = 0 [pid 6406] memfd_create("syzkaller", 0 [pid 6405] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6406] <... memfd_create resumed>) = 3 [pid 6406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6406] 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"..., 16777216) = 16777216 [pid 6406] munmap(0x7f3be0600000, 138412032) = 0 [pid 6406] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6406] ioctl(4, LOOP_CLR_FD) = 0 [pid 6406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6406] close(4) = 0 [pid 6406] close(3) = 0 [pid 6406] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6405] <... futex resumed>) = 0 [pid 6406] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6405] exit_group(0 [pid 6406] <... futex resumed>) = ? [pid 6405] <... exit_group resumed>) = ? [pid 6406] +++ exited with 0 +++ [pid 6405] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6405, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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=0x55557b776690) = 6407 ./strace-static-x86_64: Process 6407 attached [pid 6407] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6407] setpgid(0, 0) = 0 [pid 6407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6407] write(3, "1000", 4) = 4 [pid 6407] close(3) = 0 [pid 6407] write(1, "executing program\n", 18executing program ) = 18 [pid 6407] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6407] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6407] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6407] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6407] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6408 attached [pid 6408] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6407] <... clone3 resumed> => {parent_tid=[6408]}, 88) = 6408 [pid 6408] <... rseq resumed>) = 0 [pid 6407] rt_sigprocmask(SIG_SETMASK, [], [pid 6408] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6407] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6408] <... set_robust_list resumed>) = 0 [pid 6408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6408] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6407] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6408] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6407] <... futex resumed>) = 0 [pid 6407] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6408] memfd_create("syzkaller", 0) = 3 [pid 6408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6408] 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"..., 16777216) = 16777216 [pid 6408] munmap(0x7f3be0600000, 138412032) = 0 [pid 6408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6408] ioctl(4, LOOP_CLR_FD) = 0 [pid 6408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6408] close(4) = 0 [pid 6408] close(3) = 0 [pid 6408] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6407] <... futex resumed>) = 0 [pid 6408] <... futex resumed>) = 1 [pid 6407] exit_group(0 [pid 6408] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6407] <... exit_group resumed>) = ? [pid 6408] <... futex resumed>) = ? [pid 6408] +++ exited with 0 +++ [pid 6407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6407, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6409 attached , child_tidptr=0x55557b776690) = 6409 [pid 6409] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6409] setpgid(0, 0) = 0 [pid 6409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6409] write(3, "1000", 4) = 4 [pid 6409] close(3) = 0 [pid 6409] write(1, "executing program\n", 18executing program ) = 18 [pid 6409] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6409] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6409] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6409] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6410 attached [pid 6410] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6409] <... clone3 resumed> => {parent_tid=[6410]}, 88) = 6410 [pid 6410] <... rseq resumed>) = 0 [pid 6409] rt_sigprocmask(SIG_SETMASK, [], [pid 6410] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6409] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6410] <... set_robust_list resumed>) = 0 [pid 6409] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6409] <... futex resumed>) = 0 [pid 6409] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6410] memfd_create("syzkaller", 0) = 3 [pid 6410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6410] 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"..., 16777216) = 16777216 [pid 6410] munmap(0x7f3be0600000, 138412032) = 0 [pid 6410] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6410] ioctl(4, LOOP_CLR_FD) = 0 [pid 6410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6410] close(4) = 0 [pid 6410] close(3) = 0 [pid 6410] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6410] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6409] <... futex resumed>) = 0 [pid 6409] exit_group(0 [pid 6410] <... futex resumed>) = ? [pid 6409] <... exit_group resumed>) = ? [pid 6410] +++ exited with 0 +++ [pid 6409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6409, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6411 attached , child_tidptr=0x55557b776690) = 6411 [pid 6411] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6411] setpgid(0, 0) = 0 [pid 6411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6411] write(3, "1000", 4) = 4 [pid 6411] close(3) = 0 [pid 6411] write(1, "executing program\n", 18executing program ) = 18 [pid 6411] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6411] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6411] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6411] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6412 attached [pid 6412] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6411] <... clone3 resumed> => {parent_tid=[6412]}, 88) = 6412 [pid 6412] <... rseq resumed>) = 0 [pid 6411] rt_sigprocmask(SIG_SETMASK, [], [pid 6412] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6412] <... set_robust_list resumed>) = 0 [pid 6411] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6411] <... futex resumed>) = 0 [pid 6412] memfd_create("syzkaller", 0 [pid 6411] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6412] <... memfd_create resumed>) = 3 [pid 6412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6412] 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"..., 16777216) = 16777216 [pid 6412] munmap(0x7f3be0600000, 138412032) = 0 [pid 6412] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6412] ioctl(4, LOOP_CLR_FD) = 0 [pid 6412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6412] close(4) = 0 [pid 6412] close(3) = 0 [pid 6412] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6412] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6411] <... futex resumed>) = 0 [pid 6411] exit_group(0) = ? [pid 6412] <... futex resumed>) = ? [pid 6412] +++ exited with 0 +++ [pid 6411] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6411, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6413 attached , child_tidptr=0x55557b776690) = 6413 [pid 6413] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6413] setpgid(0, 0) = 0 [pid 6413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6413] write(3, "1000", 4) = 4 [pid 6413] close(3) = 0 executing program [pid 6413] write(1, "executing program\n", 18) = 18 [pid 6413] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6413] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6413] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6413] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6413] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6413] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6414 attached [pid 6414] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6413] <... clone3 resumed> => {parent_tid=[6414]}, 88) = 6414 [pid 6414] <... rseq resumed>) = 0 [pid 6413] rt_sigprocmask(SIG_SETMASK, [], [pid 6414] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6413] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6414] <... set_robust_list resumed>) = 0 [pid 6413] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6413] <... futex resumed>) = 0 [pid 6414] memfd_create("syzkaller", 0 [pid 6413] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6414] <... memfd_create resumed>) = 3 [pid 6414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6414] 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"..., 16777216) = 16777216 [pid 6414] munmap(0x7f3be0600000, 138412032) = 0 [pid 6414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6414] ioctl(4, LOOP_CLR_FD) = 0 [pid 6414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6414] close(4) = 0 [pid 6414] close(3) = 0 [pid 6414] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6413] <... futex resumed>) = 0 [pid 6414] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6413] exit_group(0 [pid 6414] <... futex resumed>) = ? [pid 6413] <... exit_group resumed>) = ? [pid 6414] +++ exited with 0 +++ [pid 6413] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6413, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6415 attached , child_tidptr=0x55557b776690) = 6415 [pid 6415] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6415] setpgid(0, 0) = 0 [pid 6415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6415] write(3, "1000", 4) = 4 [pid 6415] close(3) = 0 [pid 6415] write(1, "executing program\n", 18executing program ) = 18 [pid 6415] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6415] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6415] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6415] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6416 attached [pid 6416] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6416] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6416] rt_sigprocmask(SIG_SETMASK, [], [pid 6415] <... clone3 resumed> => {parent_tid=[6416]}, 88) = 6416 [pid 6416] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6416] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6415] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6415] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6416] <... futex resumed>) = 0 [pid 6415] <... futex resumed>) = 1 [pid 6415] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6416] memfd_create("syzkaller", 0) = 3 [pid 6416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6416] 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"..., 16777216) = 16777216 [pid 6416] munmap(0x7f3be0600000, 138412032) = 0 [pid 6416] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6416] ioctl(4, LOOP_CLR_FD) = 0 [pid 6416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6416] close(4) = 0 [pid 6416] close(3) = 0 [pid 6416] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6415] <... futex resumed>) = 0 [pid 6416] <... futex resumed>) = 1 [pid 6415] exit_group(0 [pid 6416] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6415] <... exit_group resumed>) = ? [pid 6416] <... futex resumed>) = ? [pid 6416] +++ exited with 0 +++ [pid 6415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6415, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6417 attached , child_tidptr=0x55557b776690) = 6417 [pid 6417] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6417] setpgid(0, 0) = 0 [pid 6417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6417] write(3, "1000", 4) = 4 [pid 6417] close(3) = 0 executing program [pid 6417] write(1, "executing program\n", 18) = 18 [pid 6417] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6417] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6417] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6417] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6417] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6417] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6418 attached [pid 6418] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6417] <... clone3 resumed> => {parent_tid=[6418]}, 88) = 6418 [pid 6418] <... rseq resumed>) = 0 [pid 6417] rt_sigprocmask(SIG_SETMASK, [], [pid 6418] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6417] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6418] <... set_robust_list resumed>) = 0 [pid 6417] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6417] <... futex resumed>) = 0 [pid 6418] memfd_create("syzkaller", 0 [pid 6417] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6418] <... memfd_create resumed>) = 3 [pid 6418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6418] 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"..., 16777216) = 16777216 [pid 6418] munmap(0x7f3be0600000, 138412032) = 0 [pid 6418] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6418] ioctl(4, LOOP_CLR_FD) = 0 [pid 6418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6418] close(4) = 0 [pid 6418] close(3) = 0 [pid 6418] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6417] <... futex resumed>) = 0 [pid 6418] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6417] exit_group(0 [pid 6418] <... futex resumed>) = ? [pid 6417] <... exit_group resumed>) = ? [pid 6418] +++ exited with 0 +++ [pid 6417] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6417, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6419 attached , child_tidptr=0x55557b776690) = 6419 [pid 6419] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6419] setpgid(0, 0) = 0 [pid 6419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6419] write(3, "1000", 4) = 4 [pid 6419] close(3) = 0 [pid 6419] write(1, "executing program\n", 18executing program ) = 18 [pid 6419] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6419] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6419] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6419] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6419] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6419] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6420 attached [pid 6420] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6419] <... clone3 resumed> => {parent_tid=[6420]}, 88) = 6420 [pid 6420] <... rseq resumed>) = 0 [pid 6419] rt_sigprocmask(SIG_SETMASK, [], [pid 6420] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6419] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6420] <... set_robust_list resumed>) = 0 [pid 6419] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6420] rt_sigprocmask(SIG_SETMASK, [], [pid 6419] <... futex resumed>) = 0 [pid 6420] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6420] memfd_create("syzkaller", 0 [pid 6419] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6420] <... memfd_create resumed>) = 3 [pid 6420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6420] 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"..., 16777216) = 16777216 [pid 6420] munmap(0x7f3be0600000, 138412032) = 0 [pid 6420] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6420] ioctl(4, LOOP_CLR_FD) = 0 [pid 6420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6420] close(4) = 0 [pid 6420] close(3) = 0 [pid 6420] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6419] <... futex resumed>) = 0 [pid 6420] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6419] exit_group(0 [pid 6420] <... futex resumed>) = ? [pid 6420] +++ exited with 0 +++ [pid 6419] <... exit_group resumed>) = ? [pid 6419] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6419, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6421 attached , child_tidptr=0x55557b776690) = 6421 [pid 6421] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6421] setpgid(0, 0) = 0 [pid 6421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6421] write(3, "1000", 4) = 4 [pid 6421] close(3) = 0 [pid 6421] write(1, "executing program\n", 18executing program ) = 18 [pid 6421] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6421] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6421] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6421] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6421] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6421] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6422 attached [pid 6422] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6421] <... clone3 resumed> => {parent_tid=[6422]}, 88) = 6422 [pid 6422] <... rseq resumed>) = 0 [pid 6421] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6421] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6422] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6421] <... futex resumed>) = 0 [pid 6422] <... set_robust_list resumed>) = 0 [pid 6421] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6422] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6422] memfd_create("syzkaller", 0) = 3 [pid 6422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6422] 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"..., 16777216) = 16777216 [pid 6422] munmap(0x7f3be0600000, 138412032) = 0 [pid 6422] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6422] ioctl(4, LOOP_CLR_FD) = 0 [pid 6422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6422] close(4) = 0 [pid 6422] close(3) = 0 [pid 6422] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6421] <... futex resumed>) = 0 [pid 6422] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6421] exit_group(0 [pid 6422] <... futex resumed>) = ? [pid 6421] <... exit_group resumed>) = ? [pid 6422] +++ exited with 0 +++ [pid 6421] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6421, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6423 attached , child_tidptr=0x55557b776690) = 6423 [pid 6423] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6423] setpgid(0, 0) = 0 [pid 6423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6423] write(3, "1000", 4) = 4 [pid 6423] close(3) = 0 [pid 6423] write(1, "executing program\n", 18executing program ) = 18 [pid 6423] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6423] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6423] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6423] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6423] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6423] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6423] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6424 attached => {parent_tid=[6424]}, 88) = 6424 [pid 6424] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6424] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6423] rt_sigprocmask(SIG_SETMASK, [], [pid 6424] <... set_robust_list resumed>) = 0 [pid 6424] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6423] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6424] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6423] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6423] <... futex resumed>) = 0 [pid 6423] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6424] memfd_create("syzkaller", 0) = 3 [pid 6424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6424] 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"..., 16777216) = 16777216 [pid 6424] munmap(0x7f3be0600000, 138412032) = 0 [pid 6424] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6424] ioctl(4, LOOP_CLR_FD) = 0 [pid 6424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6424] close(4) = 0 [pid 6424] close(3) = 0 [pid 6424] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6423] <... futex resumed>) = 0 [pid 6424] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6423] exit_group(0 [pid 6424] <... futex resumed>) = ? [pid 6423] <... exit_group resumed>) = ? [pid 6424] +++ exited with 0 +++ [pid 6423] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6423, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6425 attached , child_tidptr=0x55557b776690) = 6425 [pid 6425] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6425] setpgid(0, 0) = 0 [pid 6425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6425] write(3, "1000", 4) = 4 [pid 6425] close(3) = 0 [pid 6425] write(1, "executing program\n", 18executing program ) = 18 [pid 6425] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6425] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6425] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6425] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6425] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6425] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6426 attached [pid 6426] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6425] <... clone3 resumed> => {parent_tid=[6426]}, 88) = 6426 [pid 6426] <... rseq resumed>) = 0 [pid 6425] rt_sigprocmask(SIG_SETMASK, [], [pid 6426] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6425] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6426] <... set_robust_list resumed>) = 0 [pid 6425] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6426] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6425] <... futex resumed>) = 0 [pid 6426] memfd_create("syzkaller", 0 [pid 6425] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6426] <... memfd_create resumed>) = 3 [pid 6426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6426] 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"..., 16777216) = 16777216 [pid 6426] munmap(0x7f3be0600000, 138412032) = 0 [pid 6426] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6426] ioctl(4, LOOP_CLR_FD) = 0 [pid 6426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6426] close(4) = 0 [pid 6426] close(3) = 0 [pid 6426] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6425] <... futex resumed>) = 0 [pid 6426] <... futex resumed>) = 1 [pid 6425] exit_group(0 [pid 6426] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6425] <... exit_group resumed>) = ? [pid 6426] +++ exited with 0 +++ [pid 6425] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6425, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6427 attached , child_tidptr=0x55557b776690) = 6427 [pid 6427] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6427] setpgid(0, 0) = 0 [pid 6427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6427] write(3, "1000", 4) = 4 [pid 6427] close(3) = 0 executing program [pid 6427] write(1, "executing program\n", 18) = 18 [pid 6427] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6427] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6427] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6427] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6427] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6427] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6428 attached [pid 6428] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6427] <... clone3 resumed> => {parent_tid=[6428]}, 88) = 6428 [pid 6428] <... rseq resumed>) = 0 [pid 6427] rt_sigprocmask(SIG_SETMASK, [], [pid 6428] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6427] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6428] <... set_robust_list resumed>) = 0 [pid 6427] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6428] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6427] <... futex resumed>) = 0 [pid 6428] memfd_create("syzkaller", 0 [pid 6427] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6428] <... memfd_create resumed>) = 3 [pid 6428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6428] 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"..., 16777216) = 16777216 [pid 6428] munmap(0x7f3be0600000, 138412032) = 0 [pid 6428] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6428] ioctl(4, LOOP_CLR_FD) = 0 [pid 6428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6428] close(4) = 0 [pid 6428] close(3) = 0 [pid 6428] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6427] <... futex resumed>) = 0 [pid 6427] exit_group(0 [pid 6428] <... futex resumed>) = ? [pid 6427] <... exit_group resumed>) = ? [pid 6428] +++ exited with 0 +++ [pid 6427] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6427, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6429 attached , child_tidptr=0x55557b776690) = 6429 [pid 6429] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6429] setpgid(0, 0) = 0 [pid 6429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6429] write(3, "1000", 4) = 4 [pid 6429] close(3) = 0 [pid 6429] write(1, "executing program\n", 18) = 18 executing program [pid 6429] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6429] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6429] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6429] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6429] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6429] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6430 attached [pid 6430] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6430] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6430] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6429] <... clone3 resumed> => {parent_tid=[6430]}, 88) = 6430 [pid 6430] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6429] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6429] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6430] <... futex resumed>) = 0 [pid 6429] <... futex resumed>) = 1 [pid 6430] memfd_create("syzkaller", 0 [pid 6429] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6430] <... memfd_create resumed>) = 3 [pid 6430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6430] 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"..., 16777216) = 16777216 [pid 6430] munmap(0x7f3be0600000, 138412032) = 0 [pid 6430] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6430] ioctl(4, LOOP_CLR_FD) = 0 [pid 6430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6430] close(4) = 0 [pid 6430] close(3) = 0 [pid 6430] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6429] <... futex resumed>) = 0 [pid 6430] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6429] exit_group(0 [pid 6430] <... futex resumed>) = ? [pid 6429] <... exit_group resumed>) = ? [pid 6430] +++ exited with 0 +++ [pid 6429] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6429, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- 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 6431 attached , child_tidptr=0x55557b776690) = 6431 [pid 6431] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6431] setpgid(0, 0) = 0 [pid 6431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6431] write(3, "1000", 4) = 4 [pid 6431] close(3) = 0 [pid 6431] write(1, "executing program\n", 18executing program ) = 18 [pid 6431] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6431] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6431] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6431] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6431] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6431] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6432 attached [pid 6432] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6431] <... clone3 resumed> => {parent_tid=[6432]}, 88) = 6432 [pid 6432] <... rseq resumed>) = 0 [pid 6431] rt_sigprocmask(SIG_SETMASK, [], [pid 6432] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6431] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6432] <... set_robust_list resumed>) = 0 [pid 6431] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6432] rt_sigprocmask(SIG_SETMASK, [], [pid 6431] <... futex resumed>) = 0 [pid 6432] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6431] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6432] memfd_create("syzkaller", 0) = 3 [pid 6432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6432] 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"..., 16777216) = 16777216 [pid 6432] munmap(0x7f3be0600000, 138412032) = 0 [pid 6432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6432] ioctl(4, LOOP_CLR_FD) = 0 [pid 6432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6432] close(4) = 0 [pid 6432] close(3) = 0 [pid 6432] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6431] <... futex resumed>) = 0 [pid 6431] exit_group(0 [pid 6432] <... futex resumed>) = ? [pid 6431] <... exit_group resumed>) = ? [pid 6432] +++ exited with 0 +++ [pid 6431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6431, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- 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 6433 attached , child_tidptr=0x55557b776690) = 6433 [pid 6433] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6433] setpgid(0, 0) = 0 [pid 6433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6433] write(3, "1000", 4) = 4 [pid 6433] close(3) = 0 [pid 6433] write(1, "executing program\n", 18executing program ) = 18 [pid 6433] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6433] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6433] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6433] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6433] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6433] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6434 attached [pid 6434] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6433] <... clone3 resumed> => {parent_tid=[6434]}, 88) = 6434 [pid 6434] <... rseq resumed>) = 0 [pid 6433] rt_sigprocmask(SIG_SETMASK, [], [pid 6434] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6433] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6434] <... set_robust_list resumed>) = 0 [pid 6433] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6434] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6433] <... futex resumed>) = 0 [pid 6434] memfd_create("syzkaller", 0 [pid 6433] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6434] <... memfd_create resumed>) = 3 [pid 6434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6434] 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"..., 16777216) = 16777216 [pid 6434] munmap(0x7f3be0600000, 138412032) = 0 [pid 6434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6434] ioctl(4, LOOP_CLR_FD) = 0 [pid 6434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6434] close(4) = 0 [pid 6434] close(3) = 0 [pid 6434] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6433] <... futex resumed>) = 0 [pid 6433] exit_group(0 [pid 6434] <... futex resumed>) = ? [pid 6433] <... exit_group resumed>) = ? [pid 6434] +++ exited with 0 +++ [pid 6433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6433, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 6435 attached , child_tidptr=0x55557b776690) = 6435 [pid 6435] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6435] setpgid(0, 0) = 0 [pid 6435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6435] write(3, "1000", 4) = 4 [pid 6435] close(3) = 0 executing program [pid 6435] write(1, "executing program\n", 18) = 18 [pid 6435] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6435] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6435] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6435] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6435] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6435] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6436 attached => {parent_tid=[6436]}, 88) = 6436 [pid 6435] rt_sigprocmask(SIG_SETMASK, [], [pid 6436] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6435] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6435] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6435] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6436] <... rseq resumed>) = 0 [pid 6436] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6436] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6436] memfd_create("syzkaller", 0) = 3 [pid 6436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6436] 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"..., 16777216) = 16777216 [pid 6436] munmap(0x7f3be0600000, 138412032) = 0 [pid 6436] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6436] ioctl(4, LOOP_CLR_FD) = 0 [pid 6436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6436] close(4) = 0 [pid 6436] close(3) = 0 [pid 6436] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6436] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6435] <... futex resumed>) = 0 [pid 6435] exit_group(0) = ? [pid 6436] <... futex resumed>) = ? [pid 6436] +++ exited with 0 +++ [pid 6435] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6435, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6437 attached , child_tidptr=0x55557b776690) = 6437 [pid 6437] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6437] setpgid(0, 0) = 0 [pid 6437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6437] write(3, "1000", 4) = 4 [pid 6437] close(3) = 0 executing program [pid 6437] write(1, "executing program\n", 18) = 18 [pid 6437] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6437] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6437] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6437] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6437] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6437] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6438 attached [pid 6438] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6437] <... clone3 resumed> => {parent_tid=[6438]}, 88) = 6438 [pid 6438] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6437] rt_sigprocmask(SIG_SETMASK, [], [pid 6438] <... set_robust_list resumed>) = 0 [pid 6437] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6438] rt_sigprocmask(SIG_SETMASK, [], [pid 6437] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6438] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6438] memfd_create("syzkaller", 0 [pid 6437] <... futex resumed>) = 0 [pid 6437] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6438] <... memfd_create resumed>) = 3 [pid 6438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6438] 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"..., 16777216) = 16777216 [pid 6438] munmap(0x7f3be0600000, 138412032) = 0 [pid 6438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6438] ioctl(4, LOOP_CLR_FD) = 0 [pid 6438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6438] close(4) = 0 [pid 6438] close(3) = 0 [pid 6438] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6437] <... futex resumed>) = 0 [pid 6438] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6437] exit_group(0 [pid 6438] <... futex resumed>) = ? [pid 6437] <... exit_group resumed>) = ? [pid 6438] +++ exited with 0 +++ [pid 6437] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6437, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} --- 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 6439 attached , child_tidptr=0x55557b776690) = 6439 [pid 6439] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6439] setpgid(0, 0) = 0 [pid 6439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6439] write(3, "1000", 4) = 4 [pid 6439] close(3) = 0 executing program [pid 6439] write(1, "executing program\n", 18) = 18 [pid 6439] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6439] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6439] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6439] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6439] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6439] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6440 attached => {parent_tid=[6440]}, 88) = 6440 [pid 6439] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6439] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6439] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6440] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6440] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6440] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6440] memfd_create("syzkaller", 0) = 3 [pid 6440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6440] 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"..., 16777216) = 16777216 [pid 6440] munmap(0x7f3be0600000, 138412032) = 0 [pid 6440] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6440] ioctl(4, LOOP_CLR_FD) = 0 [pid 6440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6440] close(4) = 0 [pid 6440] close(3) = 0 [pid 6440] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6439] <... futex resumed>) = 0 [pid 6440] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6439] exit_group(0 [pid 6440] <... futex resumed>) = ? [pid 6439] <... exit_group resumed>) = ? [pid 6440] +++ exited with 0 +++ [pid 6439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6439, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6441 attached , child_tidptr=0x55557b776690) = 6441 [pid 6441] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6441] setpgid(0, 0) = 0 [pid 6441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6441] write(3, "1000", 4) = 4 [pid 6441] close(3) = 0 executing program [pid 6441] write(1, "executing program\n", 18) = 18 [pid 6441] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6441] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6441] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6441] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6441] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6441] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6442 attached [pid 6442] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6441] <... clone3 resumed> => {parent_tid=[6442]}, 88) = 6442 [pid 6442] <... rseq resumed>) = 0 [pid 6441] rt_sigprocmask(SIG_SETMASK, [], [pid 6442] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6441] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6442] <... set_robust_list resumed>) = 0 [pid 6442] rt_sigprocmask(SIG_SETMASK, [], [pid 6441] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6442] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6441] <... futex resumed>) = 0 [pid 6441] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6442] memfd_create("syzkaller", 0) = 3 [pid 6442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6442] 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"..., 16777216) = 16777216 [pid 6442] munmap(0x7f3be0600000, 138412032) = 0 [pid 6442] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6442] ioctl(4, LOOP_CLR_FD) = 0 [pid 6442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6442] close(4) = 0 [pid 6442] close(3) = 0 [pid 6442] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6441] <... futex resumed>) = 0 [pid 6442] <... futex resumed>) = 1 [pid 6441] exit_group(0 [pid 6442] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6441] <... exit_group resumed>) = ? [pid 6442] +++ exited with 0 +++ [pid 6441] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6441, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6443 attached , child_tidptr=0x55557b776690) = 6443 [pid 6443] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6443] setpgid(0, 0) = 0 [pid 6443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6443] write(3, "1000", 4) = 4 [pid 6443] close(3) = 0 [pid 6443] write(1, "executing program\n", 18executing program ) = 18 [pid 6443] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6443] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6443] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6443] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6443] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6443] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6444 attached [pid 6444] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6443] <... clone3 resumed> => {parent_tid=[6444]}, 88) = 6444 [pid 6444] <... rseq resumed>) = 0 [pid 6444] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6443] rt_sigprocmask(SIG_SETMASK, [], [pid 6444] <... set_robust_list resumed>) = 0 [pid 6443] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6444] rt_sigprocmask(SIG_SETMASK, [], [pid 6443] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6444] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6443] <... futex resumed>) = 0 [pid 6444] memfd_create("syzkaller", 0 [pid 6443] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6444] <... memfd_create resumed>) = 3 [pid 6444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6444] 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"..., 16777216) = 16777216 [pid 6444] munmap(0x7f3be0600000, 138412032) = 0 [pid 6444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6444] ioctl(4, LOOP_CLR_FD) = 0 [pid 6444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6444] close(4) = 0 [pid 6444] close(3) = 0 [pid 6444] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6443] <... futex resumed>) = 0 [pid 6444] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6443] exit_group(0 [pid 6444] <... futex resumed>) = ? [pid 6443] <... exit_group resumed>) = ? [pid 6444] +++ exited with 0 +++ [pid 6443] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6443, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6445 attached , child_tidptr=0x55557b776690) = 6445 [pid 6445] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6445] setpgid(0, 0) = 0 [pid 6445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6445] write(3, "1000", 4) = 4 [pid 6445] close(3) = 0 executing program [pid 6445] write(1, "executing program\n", 18) = 18 [pid 6445] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6445] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6445] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6445] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6445] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6445] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6445] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6446 attached [pid 6446] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6445] <... clone3 resumed> => {parent_tid=[6446]}, 88) = 6446 [pid 6446] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6445] rt_sigprocmask(SIG_SETMASK, [], [pid 6446] <... set_robust_list resumed>) = 0 [pid 6445] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6446] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6445] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6446] memfd_create("syzkaller", 0 [pid 6445] <... futex resumed>) = 0 [pid 6445] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6446] <... memfd_create resumed>) = 3 [pid 6446] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6446] 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"..., 16777216) = 16777216 [pid 6446] munmap(0x7f3be0600000, 138412032) = 0 [pid 6446] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6446] ioctl(4, LOOP_CLR_FD) = 0 [pid 6446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6446] close(4) = 0 [pid 6446] close(3) = 0 [pid 6446] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6445] <... futex resumed>) = 0 [pid 6446] <... futex resumed>) = 1 [pid 6445] exit_group(0 [pid 6446] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6445] <... exit_group resumed>) = ? [pid 6446] +++ exited with 0 +++ [pid 6445] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6445, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6447 attached , child_tidptr=0x55557b776690) = 6447 [pid 6447] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6447] setpgid(0, 0) = 0 [pid 6447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6447] write(3, "1000", 4) = 4 [pid 6447] close(3executing program ) = 0 [pid 6447] write(1, "executing program\n", 18) = 18 [pid 6447] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6447] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6447] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6447] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6447] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6447] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6447] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6448 attached [pid 6448] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6447] <... clone3 resumed> => {parent_tid=[6448]}, 88) = 6448 [pid 6448] <... rseq resumed>) = 0 [pid 6447] rt_sigprocmask(SIG_SETMASK, [], [pid 6448] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6447] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6448] <... set_robust_list resumed>) = 0 [pid 6447] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6448] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6447] <... futex resumed>) = 0 [pid 6448] memfd_create("syzkaller", 0 [pid 6447] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6448] <... memfd_create resumed>) = 3 [pid 6448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6448] 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"..., 16777216) = 16777216 [pid 6448] munmap(0x7f3be0600000, 138412032) = 0 [pid 6448] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6448] ioctl(4, LOOP_CLR_FD) = 0 [pid 6448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6448] close(4) = 0 [pid 6448] close(3) = 0 [pid 6448] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6448] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6447] <... futex resumed>) = 0 [pid 6447] exit_group(0 [pid 6448] <... futex resumed>) = ? [pid 6447] <... exit_group resumed>) = ? [pid 6448] +++ exited with 0 +++ [pid 6447] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6447, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6449 attached , child_tidptr=0x55557b776690) = 6449 [pid 6449] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6449] setpgid(0, 0) = 0 [pid 6449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6449] write(3, "1000", 4) = 4 [pid 6449] close(3) = 0 executing program [pid 6449] write(1, "executing program\n", 18) = 18 [pid 6449] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6449] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6449] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6449] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6449] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6449] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6450 attached [pid 6450] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6449] <... clone3 resumed> => {parent_tid=[6450]}, 88) = 6450 [pid 6450] <... rseq resumed>) = 0 [pid 6450] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6449] rt_sigprocmask(SIG_SETMASK, [], [pid 6450] <... set_robust_list resumed>) = 0 [pid 6450] rt_sigprocmask(SIG_SETMASK, [], [pid 6449] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6449] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6449] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6450] memfd_create("syzkaller", 0) = 3 [pid 6450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6450] 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"..., 16777216) = 16777216 [pid 6450] munmap(0x7f3be0600000, 138412032) = 0 [pid 6450] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6450] ioctl(4, LOOP_CLR_FD) = 0 [pid 6450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6450] close(4) = 0 [pid 6450] close(3) = 0 [pid 6450] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6449] <... futex resumed>) = 0 [pid 6450] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6449] exit_group(0) = ? [pid 6450] <... futex resumed>) = ? [pid 6450] +++ exited with 0 +++ [pid 6449] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6449, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- 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 6451 attached [pid 6451] set_robust_list(0x55557b7766a0, 24) = 0 [pid 5241] <... clone resumed>, child_tidptr=0x55557b776690) = 6451 [pid 6451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6451] setpgid(0, 0) = 0 [pid 6451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6451] write(3, "1000", 4) = 4 [pid 6451] close(3) = 0 [pid 6451] write(1, "executing program\n", 18executing program ) = 18 [pid 6451] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6451] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6451] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6451] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6451] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6451] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6452 attached [pid 6452] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6451] <... clone3 resumed> => {parent_tid=[6452]}, 88) = 6452 [pid 6452] <... rseq resumed>) = 0 [pid 6451] rt_sigprocmask(SIG_SETMASK, [], [pid 6452] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6451] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6452] <... set_robust_list resumed>) = 0 [pid 6452] rt_sigprocmask(SIG_SETMASK, [], [pid 6451] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6452] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6451] <... futex resumed>) = 0 [pid 6451] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6452] memfd_create("syzkaller", 0) = 3 [pid 6452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6452] 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"..., 16777216) = 16777216 [pid 6452] munmap(0x7f3be0600000, 138412032) = 0 [pid 6452] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6452] ioctl(4, LOOP_CLR_FD) = 0 [pid 6452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6452] close(4) = 0 [pid 6452] close(3) = 0 [pid 6452] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6451] <... futex resumed>) = 0 [pid 6452] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6451] exit_group(0 [pid 6452] <... futex resumed>) = ? [pid 6451] <... exit_group resumed>) = ? [pid 6452] +++ exited with 0 +++ [pid 6451] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6451, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 6453 attached , child_tidptr=0x55557b776690) = 6453 [pid 6453] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6453] setpgid(0, 0) = 0 [pid 6453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6453] write(3, "1000", 4) = 4 [pid 6453] close(3) = 0 [pid 6453] write(1, "executing program\n", 18executing program ) = 18 [pid 6453] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6453] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6453] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6453] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6453] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6453] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6454 attached [pid 6454] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6453] <... clone3 resumed> => {parent_tid=[6454]}, 88) = 6454 [pid 6454] <... rseq resumed>) = 0 [pid 6453] rt_sigprocmask(SIG_SETMASK, [], [pid 6454] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6453] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6454] <... set_robust_list resumed>) = 0 [pid 6453] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6454] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6453] <... futex resumed>) = 0 [pid 6453] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6454] memfd_create("syzkaller", 0) = 3 [pid 6454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6454] 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"..., 16777216) = 16777216 [pid 6454] munmap(0x7f3be0600000, 138412032) = 0 [pid 6454] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6454] ioctl(4, LOOP_CLR_FD) = 0 [pid 6454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6454] close(4) = 0 [pid 6454] close(3) = 0 [pid 6454] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6453] <... futex resumed>) = 0 [pid 6453] exit_group(0) = ? [pid 6454] +++ exited with 0 +++ [pid 6453] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6453, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=10 /* 0.10 s */} --- 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 6455 attached , child_tidptr=0x55557b776690) = 6455 [pid 6455] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6455] setpgid(0, 0) = 0 [pid 6455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6455] write(3, "1000", 4) = 4 [pid 6455] close(3) = 0 executing program [pid 6455] write(1, "executing program\n", 18) = 18 [pid 6455] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6455] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6455] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6455] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6455] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6455] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6456 attached [pid 6456] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6455] <... clone3 resumed> => {parent_tid=[6456]}, 88) = 6456 [pid 6456] <... rseq resumed>) = 0 [pid 6455] rt_sigprocmask(SIG_SETMASK, [], [pid 6456] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6455] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6456] <... set_robust_list resumed>) = 0 [pid 6455] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6455] <... futex resumed>) = 0 [pid 6456] memfd_create("syzkaller", 0 [pid 6455] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6456] <... memfd_create resumed>) = 3 [pid 6456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6456] 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"..., 16777216) = 16777216 [pid 6456] munmap(0x7f3be0600000, 138412032) = 0 [pid 6456] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6456] ioctl(4, LOOP_CLR_FD) = 0 [pid 6456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6456] close(4) = 0 [pid 6456] close(3) = 0 [pid 6456] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6455] <... futex resumed>) = 0 [pid 6456] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6455] exit_group(0 [pid 6456] <... futex resumed>) = ? [pid 6456] +++ exited with 0 +++ [pid 6455] <... exit_group resumed>) = ? [pid 6455] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6455, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} --- 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 6457 attached , child_tidptr=0x55557b776690) = 6457 [pid 6457] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6457] setpgid(0, 0) = 0 [pid 6457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6457] write(3, "1000", 4) = 4 [pid 6457] close(3) = 0 [pid 6457] write(1, "executing program\n", 18executing program ) = 18 [pid 6457] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6457] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6457] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6457] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6457] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6457] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6458 attached [pid 6458] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6457] <... clone3 resumed> => {parent_tid=[6458]}, 88) = 6458 [pid 6458] <... rseq resumed>) = 0 [pid 6457] rt_sigprocmask(SIG_SETMASK, [], [pid 6458] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6457] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6458] <... set_robust_list resumed>) = 0 [pid 6457] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6458] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6457] <... futex resumed>) = 0 [pid 6457] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6458] memfd_create("syzkaller", 0) = 3 [pid 6458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6458] 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"..., 16777216) = 16777216 [pid 6458] munmap(0x7f3be0600000, 138412032) = 0 [pid 6458] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6458] ioctl(4, LOOP_CLR_FD) = 0 [pid 6458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6458] close(4) = 0 [pid 6458] close(3) = 0 [pid 6458] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6457] <... futex resumed>) = 0 [pid 6457] exit_group(0 [pid 6458] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6457] <... exit_group resumed>) = ? [pid 6458] +++ exited with 0 +++ [pid 6457] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6457, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- 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 6459 attached , child_tidptr=0x55557b776690) = 6459 [pid 6459] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6459] setpgid(0, 0) = 0 [pid 6459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6459] write(3, "1000", 4) = 4 [pid 6459] close(3) = 0 executing program [pid 6459] write(1, "executing program\n", 18) = 18 [pid 6459] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6459] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6459] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6459] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6459] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6459] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6460 attached [pid 6460] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6459] <... clone3 resumed> => {parent_tid=[6460]}, 88) = 6460 [pid 6460] <... rseq resumed>) = 0 [pid 6459] rt_sigprocmask(SIG_SETMASK, [], [pid 6460] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6459] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6460] <... set_robust_list resumed>) = 0 [pid 6459] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6460] rt_sigprocmask(SIG_SETMASK, [], [pid 6459] <... futex resumed>) = 0 [pid 6460] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6459] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6460] memfd_create("syzkaller", 0) = 3 [pid 6460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6460] 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"..., 16777216) = 16777216 [pid 6460] munmap(0x7f3be0600000, 138412032) = 0 [pid 6460] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6460] ioctl(4, LOOP_CLR_FD) = 0 [pid 6460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6460] close(4) = 0 [pid 6460] close(3) = 0 [pid 6460] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6459] <... futex resumed>) = 0 [pid 6459] exit_group(0 [pid 6460] <... futex resumed>) = ? [pid 6459] <... exit_group resumed>) = ? [pid 6460] +++ exited with 0 +++ [pid 6459] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6459, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- 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 6461 attached , child_tidptr=0x55557b776690) = 6461 [pid 6461] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6461] setpgid(0, 0) = 0 [pid 6461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6461] write(3, "1000", 4) = 4 [pid 6461] close(3) = 0 [pid 6461] write(1, "executing program\n", 18executing program ) = 18 [pid 6461] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6461] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6461] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6461] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6461] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6461] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6462 attached [pid 6462] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6461] <... clone3 resumed> => {parent_tid=[6462]}, 88) = 6462 [pid 6462] <... rseq resumed>) = 0 [pid 6461] rt_sigprocmask(SIG_SETMASK, [], [pid 6462] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6461] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6462] <... set_robust_list resumed>) = 0 [pid 6461] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6462] rt_sigprocmask(SIG_SETMASK, [], [pid 6461] <... futex resumed>) = 0 [pid 6462] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6462] memfd_create("syzkaller", 0 [pid 6461] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6462] <... memfd_create resumed>) = 3 [pid 6462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6462] 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"..., 16777216) = 16777216 [pid 6462] munmap(0x7f3be0600000, 138412032) = 0 [pid 6462] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6462] ioctl(4, LOOP_CLR_FD) = 0 [pid 6462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6462] close(4) = 0 [pid 6462] close(3) = 0 [pid 6462] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6461] <... futex resumed>) = 0 [pid 6462] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6461] exit_group(0 [pid 6462] <... futex resumed>) = ? [pid 6461] <... exit_group resumed>) = ? [pid 6462] +++ exited with 0 +++ [pid 6461] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6461, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6463 attached , child_tidptr=0x55557b776690) = 6463 [pid 6463] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6463] setpgid(0, 0) = 0 [pid 6463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6463] write(3, "1000", 4) = 4 [pid 6463] close(3) = 0 executing program [pid 6463] write(1, "executing program\n", 18) = 18 [pid 6463] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6463] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6463] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6463] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6463] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6463] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6464 attached [pid 6464] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6463] <... clone3 resumed> => {parent_tid=[6464]}, 88) = 6464 [pid 6464] <... rseq resumed>) = 0 [pid 6463] rt_sigprocmask(SIG_SETMASK, [], [pid 6464] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6463] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6464] <... set_robust_list resumed>) = 0 [pid 6463] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6464] rt_sigprocmask(SIG_SETMASK, [], [pid 6463] <... futex resumed>) = 0 [pid 6464] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6463] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6464] memfd_create("syzkaller", 0) = 3 [pid 6464] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6464] 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"..., 16777216) = 16777216 [pid 6464] munmap(0x7f3be0600000, 138412032) = 0 [pid 6464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6464] ioctl(4, LOOP_CLR_FD) = 0 [pid 6464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6464] close(4) = 0 [pid 6464] close(3) = 0 [pid 6464] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6463] <... futex resumed>) = 0 [pid 6463] exit_group(0) = ? [pid 6464] +++ exited with 0 +++ [pid 6463] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6463, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- 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 6465 attached , child_tidptr=0x55557b776690) = 6465 [pid 6465] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6465] setpgid(0, 0) = 0 [pid 6465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6465] write(3, "1000", 4) = 4 [pid 6465] close(3) = 0 executing program [pid 6465] write(1, "executing program\n", 18) = 18 [pid 6465] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6465] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6465] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6465] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6465] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6465] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6466 attached [pid 6466] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6465] <... clone3 resumed> => {parent_tid=[6466]}, 88) = 6466 [pid 6466] <... rseq resumed>) = 0 [pid 6465] rt_sigprocmask(SIG_SETMASK, [], [pid 6466] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6465] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6466] <... set_robust_list resumed>) = 0 [pid 6465] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6466] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6465] <... futex resumed>) = 0 [pid 6466] memfd_create("syzkaller", 0 [pid 6465] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6466] <... memfd_create resumed>) = 3 [pid 6466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6466] 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"..., 16777216) = 16777216 [pid 6466] munmap(0x7f3be0600000, 138412032) = 0 [pid 6466] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6466] ioctl(4, LOOP_CLR_FD) = 0 [pid 6466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6466] close(4) = 0 [pid 6466] close(3) = 0 [pid 6466] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6466] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6465] <... futex resumed>) = 0 [pid 6465] exit_group(0) = ? [pid 6466] <... futex resumed>) = ? [pid 6466] +++ exited with 0 +++ [pid 6465] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6465, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- 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 6467 attached , child_tidptr=0x55557b776690) = 6467 [pid 6467] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6467] setpgid(0, 0) = 0 [pid 6467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6467] write(3, "1000", 4) = 4 [pid 6467] close(3) = 0 executing program [pid 6467] write(1, "executing program\n", 18) = 18 [pid 6467] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6467] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6467] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6467] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6467] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6467] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6468 attached [pid 6468] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6467] <... clone3 resumed> => {parent_tid=[6468]}, 88) = 6468 [pid 6468] <... rseq resumed>) = 0 [pid 6467] rt_sigprocmask(SIG_SETMASK, [], [pid 6468] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6467] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6468] <... set_robust_list resumed>) = 0 [pid 6467] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6467] <... futex resumed>) = 0 [pid 6468] memfd_create("syzkaller", 0 [pid 6467] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6468] <... memfd_create resumed>) = 3 [pid 6468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6468] 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"..., 16777216) = 16777216 [pid 6468] munmap(0x7f3be0600000, 138412032) = 0 [pid 6468] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6468] ioctl(4, LOOP_CLR_FD) = 0 [pid 6468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6468] close(4) = 0 [pid 6468] close(3) = 0 [pid 6468] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6467] <... futex resumed>) = 0 [pid 6468] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6467] exit_group(0 [pid 6468] <... futex resumed>) = ? [pid 6468] +++ exited with 0 +++ [pid 6467] <... exit_group resumed>) = ? [pid 6467] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6467, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} --- 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 6469 attached , child_tidptr=0x55557b776690) = 6469 [pid 6469] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6469] setpgid(0, 0) = 0 [pid 6469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6469] write(3, "1000", 4) = 4 [pid 6469] close(3) = 0 executing program [pid 6469] write(1, "executing program\n", 18) = 18 [pid 6469] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6469] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6469] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6469] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6469] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6469] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6470 attached [pid 6470] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6469] <... clone3 resumed> => {parent_tid=[6470]}, 88) = 6470 [pid 6470] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6469] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6469] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6470] memfd_create("syzkaller", 0) = 3 [pid 6470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6470] 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"..., 16777216) = 16777216 [pid 6470] munmap(0x7f3be0600000, 138412032) = 0 [pid 6470] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6470] ioctl(4, LOOP_CLR_FD) = 0 [pid 6470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6470] close(4) = 0 [pid 6470] close(3) = 0 [pid 6470] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6469] <... futex resumed>) = 0 [pid 6469] exit_group(0) = ? [pid 6470] +++ exited with 0 +++ [pid 6469] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6469, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- 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 6471 attached , child_tidptr=0x55557b776690) = 6471 [pid 6471] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6471] setpgid(0, 0) = 0 [pid 6471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6471] write(3, "1000", 4) = 4 [pid 6471] close(3) = 0 [pid 6471] write(1, "executing program\n", 18executing program ) = 18 [pid 6471] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6471] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6471] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6471] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6471] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6471] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6472 attached => {parent_tid=[6472]}, 88) = 6472 [pid 6471] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6472] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6471] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6471] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6472] <... rseq resumed>) = 0 [pid 6472] set_robust_list(0x7f3be8b6f9a0, 24) = 0 [pid 6472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6472] memfd_create("syzkaller", 0) = 3 [pid 6472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6472] 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"..., 16777216) = 16777216 [pid 6472] munmap(0x7f3be0600000, 138412032) = 0 [pid 6472] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6472] ioctl(4, LOOP_CLR_FD) = 0 [pid 6472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6472] close(4) = 0 [pid 6472] close(3) = 0 [pid 6472] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6472] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6471] <... futex resumed>) = 0 [pid 6471] exit_group(0 [pid 6472] <... futex resumed>) = ? [pid 6471] <... exit_group resumed>) = ? [pid 6472] +++ exited with 0 +++ [pid 6471] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6471, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6473 attached , child_tidptr=0x55557b776690) = 6473 [pid 6473] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6473] setpgid(0, 0) = 0 [pid 6473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6473] write(3, "1000", 4) = 4 [pid 6473] close(3) = 0 [pid 6473] write(1, "executing program\n", 18executing program ) = 18 [pid 6473] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6473] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6473] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6473] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6473] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6473] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6474 attached => {parent_tid=[6474]}, 88) = 6474 [pid 6473] rt_sigprocmask(SIG_SETMASK, [], [pid 6474] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6473] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6474] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6473] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6474] <... set_robust_list resumed>) = 0 [pid 6473] <... futex resumed>) = 0 [pid 6474] rt_sigprocmask(SIG_SETMASK, [], [pid 6473] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6474] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6474] memfd_create("syzkaller", 0) = 3 [pid 6474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6474] 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"..., 16777216) = 16777216 [pid 6474] munmap(0x7f3be0600000, 138412032) = 0 [pid 6474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6474] ioctl(4, LOOP_CLR_FD) = 0 [pid 6474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6474] close(4) = 0 [pid 6474] close(3) = 0 [pid 6474] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6473] <... futex resumed>) = 0 [pid 6474] <... futex resumed>) = 1 [pid 6473] exit_group(0 [pid 6474] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6473] <... exit_group resumed>) = ? [pid 6474] <... futex resumed>) = ? [pid 6474] +++ exited with 0 +++ [pid 6473] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6473, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- 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 6475 attached , child_tidptr=0x55557b776690) = 6475 [pid 6475] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6475] setpgid(0, 0) = 0 [pid 6475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6475] write(3, "1000", 4) = 4 [pid 6475] close(3) = 0 [pid 6475] write(1, "executing program\n", 18executing program ) = 18 [pid 6475] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6475] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6475] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6475] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6475] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6475] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6476 attached [pid 6476] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6475] <... clone3 resumed> => {parent_tid=[6476]}, 88) = 6476 [pid 6476] <... rseq resumed>) = 0 [pid 6475] rt_sigprocmask(SIG_SETMASK, [], [pid 6476] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6475] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6476] <... set_robust_list resumed>) = 0 [pid 6475] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6476] rt_sigprocmask(SIG_SETMASK, [], [pid 6475] <... futex resumed>) = 0 [pid 6476] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6475] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6476] memfd_create("syzkaller", 0) = 3 [pid 6476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6476] 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"..., 16777216) = 16777216 [pid 6476] munmap(0x7f3be0600000, 138412032) = 0 [pid 6476] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6476] ioctl(4, LOOP_CLR_FD) = 0 [pid 6476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6476] close(4) = 0 [pid 6476] close(3) = 0 [pid 6476] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6475] <... futex resumed>) = 0 [pid 6475] exit_group(0) = ? [pid 6476] +++ exited with 0 +++ [pid 6475] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6475, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- 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 6477 attached , child_tidptr=0x55557b776690) = 6477 [pid 6477] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6477] setpgid(0, 0) = 0 [pid 6477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6477] write(3, "1000", 4) = 4 [pid 6477] close(3) = 0 [pid 6477] write(1, "executing program\n", 18executing program ) = 18 [pid 6477] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6477] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6477] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6477] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6477] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6477] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6478 attached [pid 6478] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053 [pid 6477] <... clone3 resumed> => {parent_tid=[6478]}, 88) = 6478 [pid 6478] <... rseq resumed>) = 0 [pid 6477] rt_sigprocmask(SIG_SETMASK, [], [pid 6478] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6477] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6478] <... set_robust_list resumed>) = 0 [pid 6477] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6478] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6477] <... futex resumed>) = 0 [pid 6478] memfd_create("syzkaller", 0 [pid 6477] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6478] <... memfd_create resumed>) = 3 [pid 6478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [pid 6478] 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"..., 16777216) = 16777216 [pid 6478] munmap(0x7f3be0600000, 138412032) = 0 [pid 6478] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6478] ioctl(4, LOOP_CLR_FD) = 0 [pid 6478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6478] close(4) = 0 [pid 6478] close(3) = 0 [pid 6478] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6477] <... futex resumed>) = 0 [pid 6478] <... futex resumed>) = 1 [pid 6477] exit_group(0 [pid 6478] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6477] <... exit_group resumed>) = ? [pid 6478] +++ exited with 0 +++ [pid 6477] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6477, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- 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 6479 attached , child_tidptr=0x55557b776690) = 6479 [pid 6479] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6479] setpgid(0, 0) = 0 [pid 6479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6479] write(3, "1000", 4) = 4 [pid 6479] close(3) = 0 executing program [pid 6479] write(1, "executing program\n", 18) = 18 [pid 6479] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6479] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6479] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6479] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6479] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6479] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6479] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6480 attached => {parent_tid=[6480]}, 88) = 6480 [pid 6479] rt_sigprocmask(SIG_SETMASK, [], [pid 6480] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6479] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6480] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6479] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6480] <... set_robust_list resumed>) = 0 [pid 6479] <... futex resumed>) = 0 [pid 6480] rt_sigprocmask(SIG_SETMASK, [], [pid 6479] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6480] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6480] memfd_create("syzkaller", 0) = 3 [pid 6480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [ 429.985263][ T30] INFO: task bch-copygc/loop:5253 blocked for more than 143 seconds. [ 429.993556][ T30] Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0 [ 430.002156][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.010948][ T30] task:bch-copygc/loop state:D stack:20272 pid:5253 tgid:5253 ppid:2 flags:0x00004000 [ 430.021792][ T30] Call Trace: [ 430.025448][ T30] [ 430.028410][ T30] __schedule+0x17ae/0x4a10 [ 430.033445][ T30] ? __pfx___schedule+0x10/0x10 [ 430.038966][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [ 430.045695][ T30] ? __pfx_lock_release+0x10/0x10 [ 430.050856][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [ 430.058173][ T30] ? bch2_print_allocator_stuck+0xc24/0xcb0 [ 430.064114][ T30] ? schedule+0x90/0x320 [ 430.069342][ T30] schedule+0x14b/0x320 [ 430.073546][ T30] __closure_sync+0x259/0x2f0 [pid 6480] 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"..., 16777216) = 16777216 [pid 6480] munmap(0x7f3be0600000, 138412032) = 0 [ 430.085166][ T30] ? __closure_sync+0x149/0x2f0 [ 430.090164][ T30] ? __pfx___closure_sync+0x10/0x10 [ 430.096528][ T30] ? __bch2_wait_on_allocator+0x1d6/0x250 [ 430.102297][ T30] __bch2_write+0x55a7/0x5d20 [ 430.107891][ T30] ? bch2_btree_iter_peek_upto+0x57cf/0x6f90 [ 430.114319][ T30] ? __pfx___bch2_write+0x10/0x10 [ 430.120097][ T30] ? __pfx_validate_chain+0x10/0x10 [ 430.125543][ T30] ? __pfx_validate_chain+0x10/0x10 [ 430.130769][ T30] ? __lock_acquire+0x1384/0x2050 [pid 6480] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6480] ioctl(4, LOOP_CLR_FD) = 0 [pid 6480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6480] close(4) = 0 [ 430.136092][ T30] bch2_write+0x947/0x1670 [ 430.140516][ T30] ? mark_lock+0x9a/0x360 [ 430.145233][ T30] ? __pfx_bch2_write+0x10/0x10 [ 430.150129][ T30] ? bch2_data_update_read_done+0xfd/0x330 [ 430.156319][ T30] bch2_data_update_read_done+0x22e/0x330 [ 430.162077][ T30] ? __pfx_bch2_data_update_read_done+0x10/0x10 [ 430.168643][ T30] ? bch2_trans_srcu_unlock+0x57/0x5b0 [ 430.174344][ T30] bch2_moving_ctxt_do_pending_writes+0x44c/0x8d0 [pid 6480] close(3) = 0 [pid 6480] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6479] <... futex resumed>) = 0 [pid 6480] futex(0x7f3be8c466a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6479] exit_group(0) = ? [pid 6480] <... futex resumed>) = ? [pid 6480] +++ exited with 0 +++ [pid 6479] +++ exited with 0 +++ [ 430.180902][ T30] ? __pfx_bch2_moving_ctxt_do_pending_writes+0x10/0x10 [ 430.188075][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 430.193997][ T30] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 430.200479][ T30] ? finish_wait+0xd4/0x1e0 [ 430.205018][ T30] move_buckets_wait+0x2ba/0x1290 [ 430.210153][ T30] ? __pfx_move_buckets_wait+0x10/0x10 [ 430.215768][ T30] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 430.221417][ T30] ? __pfx_autoremove_wake_function+0x10/0x10 [ 430.227910][ T30] ? bch2_get_next_online_dev+0x4b9/0x4f0 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6479, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 [ 430.233634][ T30] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 430.239763][ T30] bch2_copygc_thread+0x83f/0xc20 [ 430.244827][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 430.250464][ T30] ? bch2_copygc_thread+0x1a2/0xc20 [ 430.255735][ T30] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 430.261635][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 430.266964][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 430.272900][ T30] ? __kthread_parkme+0x169/0x1d0 [ 430.277979][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6481 attached , child_tidptr=0x55557b776690) = 6481 [pid 6481] set_robust_list(0x55557b7766a0, 24) = 0 [pid 6481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 430.283552][ T30] kthread+0x2f0/0x390 [ 430.287712][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 430.293382][ T30] ? __pfx_kthread+0x10/0x10 [ 430.298101][ T30] ret_from_fork+0x4b/0x80 [ 430.302556][ T30] ? __pfx_kthread+0x10/0x10 [ 430.307198][ T30] ret_from_fork_asm+0x1a/0x30 [ 430.311997][ T30] [ 430.315019][ T30] [ 430.315019][ T30] Showing all locks held in the system: [ 430.322833][ T30] 1 lock held by khungtaskd/30: [pid 6481] setpgid(0, 0) = 0 [pid 6481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6481] write(3, "1000", 4) = 4 [pid 6481] close(3) = 0 [pid 6481] write(1, "executing program\n", 18executing program ) = 18 [pid 6481] futex(0x7f3be8c466ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6481] rt_sigaction(SIGRT_1, {sa_handler=0x7f3be8bdf630, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3be8bd0ce0}, NULL, 8) = 0 [pid 6481] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3be8b4f000 [pid 6481] mprotect(0x7f3be8b50000, 131072, PROT_READ|PROT_WRITE) = 0 [ 430.327736][ T30] #0: ffffffff8e738a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 430.337682][ T30] 2 locks held by getty/4971: [ 430.342375][ T30] #0: ffff8880300550a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.352283][ T30] #1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 [ 430.362489][ T30] [ 430.364873][ T30] ============================================= [ 430.364873][ T30] [ 430.373344][ T30] NMI backtrace for cpu 1 [pid 6481] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6481] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3be8b6f990, parent_tid=0x7f3be8b6f990, exit_signal=0, stack=0x7f3be8b4f000, stack_size=0x20300, tls=0x7f3be8b6f6c0}./strace-static-x86_64: Process 6482 attached [pid 6482] rseq(0x7f3be8b6ffe0, 0x20, 0, 0x53053053) = 0 [pid 6482] set_robust_list(0x7f3be8b6f9a0, 24 [pid 6481] <... clone3 resumed> => {parent_tid=[6482]}, 88) = 6482 [pid 6482] <... set_robust_list resumed>) = 0 [pid 6482] rt_sigprocmask(SIG_SETMASK, [], [pid 6481] rt_sigprocmask(SIG_SETMASK, [], [pid 6482] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6481] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6481] futex(0x7f3be8c466a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6482] memfd_create("syzkaller", 0 [pid 6481] <... futex resumed>) = 0 [pid 6481] futex(0x7f3be8c466ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6482] <... memfd_create resumed>) = 3 [pid 6482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3be0600000 [ 430.377708][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0 [ 430.388073][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 430.398145][ T30] Call Trace: [ 430.401507][ T30] [ 430.404445][ T30] dump_stack_lvl+0x241/0x360 [ 430.409146][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.414339][ T30] ? __pfx__printk+0x10/0x10 [ 430.418945][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 430.423903][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 430.429381][ T30] ? _printk+0xd5/0x120 [ 430.433545][ T30] ? __pfx__printk+0x10/0x10 [ 430.438134][ T30] ? __wake_up_klogd+0xcc/0x110 [ 430.443087][ T30] ? __pfx__printk+0x10/0x10 [ 430.447676][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.453654][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 430.459633][ T30] watchdog+0xff4/0x1040 [ 430.463871][ T30] ? watchdog+0x1ea/0x1040 [ 430.468281][ T30] ? __pfx_watchdog+0x10/0x10 [ 430.473042][ T30] kthread+0x2f0/0x390 [ 430.477192][ T30] ? __pfx_watchdog+0x10/0x10 [ 430.481867][ T30] ? __pfx_kthread+0x10/0x10 [ 430.486452][ T30] ret_from_fork+0x4b/0x80 [ 430.490867][ T30] ? __pfx_kthread+0x10/0x10 [ 430.495448][ T30] ret_from_fork_asm+0x1a/0x30 [ 430.500218][ T30] [ 430.503420][ T30] Sending NMI from CPU 1 to CPUs 0: [ 430.508703][ C0] NMI backtrace for cpu 0 [ 430.508715][ C0] CPU: 0 UID: 0 PID: 6482 Comm: syz-executor389 Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0 [ 430.508734][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 430.508743][ C0] RIP: 0033:0x7f3be8b80f10 [ 430.508763][ C0] Code: 49 8b 47 10 48 39 f0 72 6e 48 63 cd 48 01 c1 49 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 48 39 f0 72 1b 4d 8b 07 <49> 89 c1 49 29 f1 47 0f b6 0c 08 45 84 c9 74 08 45 88 0c 00 49 8b [ 430.508780][ C0] RSP: 002b:00007f3be8b6e710 EFLAGS: 00000202 [ 430.508796][ C0] RAX: 000000000020793c RBX: 00007f3be8b6e7b0 RCX: 00000000000000ed [ 430.508807][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007f3be8b6e850 [ 430.508818][ C0] RBP: 0000000000000102 R08: 00007f3be0600000 R09: 0000000000000000 [ 430.508829][ C0] R10: 0000000000000000 R11: 00007f3be8b6e7c0 R12: 0000000000000001 [ 430.508839][ C0] R13: 00007f3be8c12fa0 R14: 0000000000000000 R15: 00007f3be8b6e850 [ 430.508850][ C0] FS: 00007f3be8b6f6c0 GS: 0000000000000000 [ 430.509822][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 430.618218][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0 [ 430.628372][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 430.638423][ T30] Call Trace: [ 430.641697][ T30] [ 430.644621][ T30] dump_stack_lvl+0x241/0x360 [ 430.649302][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.654494][ T30] ? __pfx__printk+0x10/0x10 [ 430.659077][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 430.665062][ T30] ? vscnprintf+0x5d/0x90 [ 430.669391][ T30] panic+0x349/0x870 [ 430.673369][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.679517][ T30] ? __pfx_panic+0x10/0x10 [ 430.683926][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 430.689295][ T30] ? __irq_work_queue_local+0x137/0x410 [ 430.694838][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 430.700200][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.706343][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 430.712488][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 430.718634][ T30] watchdog+0x1033/0x1040 [ 430.722959][ T30] ? watchdog+0x1ea/0x1040 [ 430.727366][ T30] ? __pfx_watchdog+0x10/0x10 [ 430.732031][ T30] kthread+0x2f0/0x390 [ 430.736091][ T30] ? __pfx_watchdog+0x10/0x10 [ 430.740756][ T30] ? __pfx_kthread+0x10/0x10 [ 430.745339][ T30] ret_from_fork+0x4b/0x80 [ 430.749761][ T30] ? __pfx_kthread+0x10/0x10 [ 430.754340][ T30] ret_from_fork_asm+0x1a/0x30 [ 430.759106][ T30] [ 430.762354][ T30] Kernel Offset: disabled [ 430.766763][ T30] Rebooting in 86400 seconds..