./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3818344093 <...> Warning: Permanently added '10.128.0.73' (ED25519) to the list of known hosts. execve("./syz-executor3818344093", ["./syz-executor3818344093"], 0x7fffa4f8ae90 /* 10 vars */) = 0 brk(NULL) = 0x55556ad69000 brk(0x55556ad69d00) = 0x55556ad69d00 arch_prctl(ARCH_SET_FS, 0x55556ad69380) = 0 set_tid_address(0x55556ad69650) = 5851 set_robust_list(0x55556ad69660, 24) = 0 rseq(0x55556ad69ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3818344093", 4096) = 28 getrandom("\xb9\x08\xae\xd9\xc6\x60\xc6\xe0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556ad69d00 brk(0x55556ad8ad00) = 0x55556ad8ad00 brk(0x55556ad8b000) = 0x55556ad8b000 mprotect(0x7f7a6e7da000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 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 5852 attached [pid 5852] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5852 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] setpgid(0, 0) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1000", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] write(1, "executing program\n", 18executing program ) = 18 [pid 5852] memfd_create("syzkaller", 0) = 3 [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 138412032) = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5852] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5852] close(3) = 0 [pid 5852] close(4) = 0 [pid 5852] mkdir("./file1", 0777) = 0 [ 134.850303][ T5852] loop0: detected capacity change from 0 to 32768 [ 134.938430][ T5852] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,background_compression=lz4,journal_flush_disabled,fsck,norecovery [ 134.938430][ T5852] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes [ 134.971189][ T5852] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 [ 134.979856][ T5852] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 134.988037][ T5852] bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.28: inode_has_case_insensitive [ 134.988037][ T5852] running recovery passes: check_allocations,check_extents_to_backpointers,check_inodes [ 135.025040][ T5852] bcachefs (loop0): error reading btree root btree=alloc level=0: btree_node_read_error, fixing [pid 5852] mount("/dev/loop0", "./file1", "bcachefs", MS_I_VERSION, "inodes_use_key_cache,version_upgrade=none,norecovery,version_upgrade=compatible,journal_flush_disabl"...) = 0 [pid 5852] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5852] chdir("./file1") = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5852] ioctl(4, LOOP_CLR_FD) = 0 [pid 5852] close(4) = 0 [ 135.041735][ T5852] bcachefs (loop0): check_topology... done [ 135.048063][ T5852] bcachefs (loop0): accounting_read... done [ 135.055338][ T5852] bcachefs (loop0): alloc_read... done [ 135.061171][ T5852] bcachefs (loop0): snapshots_read... done [ 135.067601][ T5852] bcachefs (loop0): Fixed errors, running fsck a second time to verify fs is clean [ 135.077356][ T5852] bcachefs (loop0): done starting filesystem [pid 5852] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = 4 [pid 5852] write(4, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = 9 [pid 5852] exit_group(0) = ? [pid 5852] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5856 attached , child_tidptr=0x55556ad69650) = 5856 [pid 5856] set_robust_list(0x55556ad69660, 24) = 0 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5856] setpgid(0, 0) = 0 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 135.158947][ T5852] syz-executor381 (5852) used greatest stack depth: 17688 bytes left [pid 5856] write(3, "1000", 4) = 4 [pid 5856] close(3) = 0 executing program [pid 5856] write(1, "executing program\n", 18) = 18 [pid 5856] memfd_create("syzkaller", 0) = 3 [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5856] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5856] exit_group(0) = ? [pid 5856] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5856, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5857] set_robust_list(0x55556ad69660, 24) = 0 [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5857 [pid 5857] <... prctl resumed>) = 0 [pid 5857] setpgid(0, 0) = 0 [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5857] write(3, "1000", 4) = 4 [pid 5857] close(3) = 0 [pid 5857] write(1, "executing program\n", 18) = 18 [pid 5857] memfd_create("syzkaller", 0) = 3 [pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5857] munmap(0x7f7a66200000, 138412032) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5857] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5857] ioctl(4, LOOP_CLR_FD) = 0 [pid 5857] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5857] close(4) = 0 [pid 5857] close(3) = 0 [pid 5857] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5857] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5857] exit_group(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=25 /* 0.25 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5858 attached [pid 5858] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5858 [pid 5858] <... set_robust_list resumed>) = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5858] write(3, "1000", 4) = 4 [pid 5858] close(3executing program ) = 0 [pid 5858] write(1, "executing program\n", 18) = 18 [pid 5858] memfd_create("syzkaller", 0) = 3 [pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5858] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5858] exit_group(0) = ? [pid 5858] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5858, si_uid=0, si_status=0, si_utime=3 /* 0.03 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./strace-static-x86_64: Process 5859 attached [pid 5859] set_robust_list(0x55556ad69660, 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 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5859 [pid 5859] <... openat resumed>) = 3 [pid 5859] write(3, "1000", 4) = 4 [pid 5859] close(3) = 0 [pid 5859] write(1, "executing program\n", 18executing program ) = 18 [pid 5859] memfd_create("syzkaller", 0) = 3 [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5859] munmap(0x7f7a66200000, 138412032) = 0 [pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5859] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5859] ioctl(4, LOOP_CLR_FD) = 0 [pid 5859] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5859] close(4) = 0 [pid 5859] close(3) = 0 [pid 5859] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5859] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5859] exit_group(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=4 /* 0.04 s */, si_stime=22 /* 0.22 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 5860 attached [pid 5860] set_robust_list(0x55556ad69660, 24) = 0 [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5860] setpgid(0, 0) = 0 [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5860 [pid 5860] write(3, "1000", 4) = 4 [pid 5860] close(3) = 0 executing program [pid 5860] write(1, "executing program\n", 18) = 18 [pid 5860] memfd_create("syzkaller", 0) = 3 [pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5860] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5860] exit_group(0) = ? [pid 5860] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5860, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5861] set_robust_list(0x55556ad69660, 24) = 0 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5861 [pid 5861] <... prctl resumed>) = 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] memfd_create("syzkaller", 0) = 3 [pid 5861] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5861] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5861] munmap(0x7f7a66200000, 138412032) = 0 [pid 5861] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5861] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5861] ioctl(4, LOOP_CLR_FD) = 0 [pid 5861] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5861] close(4) = 0 [pid 5861] close(3) = 0 [pid 5861] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5861] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5861] exit_group(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=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5862 attached [pid 5862] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5862 [pid 5862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5862] setpgid(0, 0) = 0 [pid 5862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5862] write(3, "1000", 4) = 4 [pid 5862] close(3executing program ) = 0 [pid 5862] write(1, "executing program\n", 18) = 18 [pid 5862] memfd_create("syzkaller", 0) = 3 [pid 5862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5862] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5862] exit_group(0) = ? [pid 5862] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5862, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5863] set_robust_list(0x55556ad69660, 24) = 0 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5863 [pid 5863] <... prctl resumed>) = 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 executing program [pid 5863] write(1, "executing program\n", 18) = 18 [pid 5863] memfd_create("syzkaller", 0) = 3 [pid 5863] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5863] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5863] munmap(0x7f7a66200000, 138412032) = 0 [pid 5863] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5863] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5863] ioctl(4, LOOP_CLR_FD) = 0 [pid 5863] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5863] close(4) = 0 [pid 5863] close(3) = 0 [pid 5863] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5863] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5863] exit_group(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=5 /* 0.05 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5864 attached [pid 5864] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5864 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5864] setpgid(0, 0) = 0 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5864] write(3, "1000", 4) = 4 [pid 5864] close(3executing program ) = 0 [pid 5864] write(1, "executing program\n", 18) = 18 [pid 5864] memfd_create("syzkaller", 0) = 3 [pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5864] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5864] exit_group(0) = ? [pid 5864] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5864, si_uid=0, si_status=0, si_utime=5 /* 0.05 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 5865 attached [pid 5865] set_robust_list(0x55556ad69660, 24) = 0 [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5865 [pid 5865] <... prctl resumed>) = 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] memfd_create("syzkaller", 0) = 3 [pid 5865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5865] munmap(0x7f7a66200000, 138412032) = 0 [pid 5865] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5865] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5865] ioctl(4, LOOP_CLR_FD) = 0 [pid 5865] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5865] close(4) = 0 [pid 5865] close(3) = 0 [pid 5865] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5865] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5865] exit_group(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=5 /* 0.05 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5866 attached , child_tidptr=0x55556ad69650) = 5866 [pid 5866] set_robust_list(0x55556ad69660, 24) = 0 [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5866] setpgid(0, 0) = 0 [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1000", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] write(1, "executing program\n", 18executing program ) = 18 [pid 5866] memfd_create("syzkaller", 0) = 3 [pid 5866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5866] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5866] exit_group(0) = ? [pid 5866] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5866, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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=0x55556ad69650) = 5867 [pid 5867] set_robust_list(0x55556ad69660, 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", 4executing program ) = 4 [pid 5867] close(3) = 0 [pid 5867] write(1, "executing program\n", 18) = 18 [pid 5867] memfd_create("syzkaller", 0) = 3 [pid 5867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5867] munmap(0x7f7a66200000, 138412032) = 0 [pid 5867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5867] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5867] ioctl(4, LOOP_CLR_FD) = 0 [pid 5867] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5867] close(4) = 0 [pid 5867] close(3) = 0 [pid 5867] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5867] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5867] exit_group(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=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 5868 attached [pid 5868] set_robust_list(0x55556ad69660, 24) = 0 [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5868 [pid 5868] <... prctl resumed>) = 0 [pid 5868] setpgid(0, 0) = 0 [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1000", 4executing program ) = 4 [pid 5868] close(3) = 0 [pid 5868] write(1, "executing program\n", 18) = 18 [pid 5868] memfd_create("syzkaller", 0) = 3 [pid 5868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5868] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5868] exit_group(0) = ? [pid 5868] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5868, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=25 /* 0.25 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5869] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5869 [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(3executing program ) = 0 [pid 5869] write(1, "executing program\n", 18) = 18 [pid 5869] memfd_create("syzkaller", 0) = 3 [pid 5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5869] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5869] munmap(0x7f7a66200000, 138412032) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5869] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5869] ioctl(4, LOOP_CLR_FD) = 0 [pid 5869] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5869] close(4) = 0 [pid 5869] close(3) = 0 [pid 5869] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5869] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5869] exit_group(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=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5870 attached [pid 5870] set_robust_list(0x55556ad69660, 24) = 0 [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5870 [pid 5870] <... prctl resumed>) = 0 [pid 5870] setpgid(0, 0) = 0 [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5870] write(3, "1000", 4) = 4 [pid 5870] close(3executing program ) = 0 [pid 5870] write(1, "executing program\n", 18) = 18 [pid 5870] memfd_create("syzkaller", 0) = 3 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5870] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5870] exit_group(0) = ? [pid 5870] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5870, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 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 5871 attached [pid 5871] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5871 [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(3executing program ) = 0 [pid 5871] write(1, "executing program\n", 18) = 18 [pid 5871] memfd_create("syzkaller", 0) = 3 [pid 5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5871] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5871] munmap(0x7f7a66200000, 138412032) = 0 [pid 5871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5871] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5871] ioctl(4, LOOP_CLR_FD) = 0 [pid 5871] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5871] close(4) = 0 [pid 5871] close(3) = 0 [pid 5871] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5871] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5871] exit_group(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=5 /* 0.05 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5872 attached [pid 5872] set_robust_list(0x55556ad69660, 24) = 0 [pid 5872] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5872 [pid 5872] <... prctl resumed>) = 0 [pid 5872] setpgid(0, 0) = 0 [pid 5872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5872] write(3, "1000", 4) = 4 [pid 5872] close(3) = 0 executing program [pid 5872] write(1, "executing program\n", 18) = 18 [pid 5872] memfd_create("syzkaller", 0) = 3 [pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5872] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5872] exit_group(0) = ? [pid 5872] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5872, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5873] set_robust_list(0x55556ad69660, 24) = 0 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5873 [pid 5873] <... prctl resumed>) = 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] memfd_create("syzkaller", 0) = 3 [pid 5873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5873] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5873] munmap(0x7f7a66200000, 138412032) = 0 [pid 5873] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5873] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5873] ioctl(4, LOOP_CLR_FD) = 0 [pid 5873] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5873] close(4) = 0 [pid 5873] close(3) = 0 [pid 5873] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5873] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5873] exit_group(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=0, 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 5874 attached , child_tidptr=0x55556ad69650) = 5874 [pid 5874] set_robust_list(0x55556ad69660, 24) = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5874] setpgid(0, 0) = 0 [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5874] write(3, "1000", 4) = 4 [pid 5874] close(3) = 0 [pid 5874] write(1, "executing program\n", 18executing program ) = 18 [pid 5874] memfd_create("syzkaller", 0) = 3 [pid 5874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5874] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5874] exit_group(0) = ? [pid 5874] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5874, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5875] set_robust_list(0x55556ad69660, 24) = 0 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5875 [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 [pid 5875] write(1, "executing program\n", 18executing program ) = 18 [pid 5875] memfd_create("syzkaller", 0) = 3 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5875] munmap(0x7f7a66200000, 138412032) = 0 [pid 5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5875] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5875] ioctl(4, LOOP_CLR_FD) = 0 [pid 5875] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5875] close(4) = 0 [pid 5875] close(3) = 0 [pid 5875] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5875] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5875] exit_group(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=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", 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=0x55556ad69650) = 5876 ./strace-static-x86_64: Process 5876 attached [pid 5876] set_robust_list(0x55556ad69660, 24) = 0 [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5876] setpgid(0, 0) = 0 [pid 5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5876] write(3, "1000", 4) = 4 [pid 5876] close(3executing program ) = 0 [pid 5876] write(1, "executing program\n", 18) = 18 [pid 5876] memfd_create("syzkaller", 0) = 3 [pid 5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5876] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5876] exit_group(0) = ? [pid 5876] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 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 5877 attached [pid 5877] set_robust_list(0x55556ad69660, 24) = 0 [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5877 [pid 5877] <... prctl resumed>) = 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 executing program [pid 5877] write(1, "executing program\n", 18) = 18 [pid 5877] memfd_create("syzkaller", 0) = 3 [pid 5877] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5877] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5877] munmap(0x7f7a66200000, 138412032) = 0 [pid 5877] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5877] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5877] ioctl(4, LOOP_CLR_FD) = 0 [pid 5877] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5877] close(4) = 0 [pid 5877] close(3) = 0 [pid 5877] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5877] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5877] exit_group(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=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5878 attached [pid 5878] set_robust_list(0x55556ad69660, 24) = 0 [pid 5878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5878 [pid 5878] <... prctl resumed>) = 0 [pid 5878] setpgid(0, 0) = 0 [pid 5878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5878] write(3, "1000", 4) = 4 [pid 5878] close(3) = 0 [pid 5878] write(1, "executing program\n", 18executing program ) = 18 [pid 5878] memfd_create("syzkaller", 0) = 3 [pid 5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5878] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5878] exit_group(0) = ? [pid 5878] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5878, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5879] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5879 [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] memfd_create("syzkaller", 0) = 3 [pid 5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5879] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5879] munmap(0x7f7a66200000, 138412032) = 0 [pid 5879] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5879] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5879] ioctl(4, LOOP_CLR_FD) = 0 [pid 5879] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5879] close(4) = 0 [pid 5879] close(3) = 0 [pid 5879] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5879] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5879] exit_group(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=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5880 attached [pid 5880] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5880 [pid 5880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5880] setpgid(0, 0) = 0 [pid 5880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5880] write(3, "1000", 4) = 4 [pid 5880] close(3) = 0 [pid 5880] write(1, "executing program\n", 18executing program ) = 18 [pid 5880] memfd_create("syzkaller", 0) = 3 [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5880] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5880] exit_group(0) = ? [pid 5880] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5880, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5881] set_robust_list(0x55556ad69660, 24) = 0 [pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5881 [pid 5881] <... prctl resumed>) = 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] memfd_create("syzkaller", 0) = 3 [pid 5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5881] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5881] munmap(0x7f7a66200000, 138412032) = 0 [pid 5881] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5881] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5881] ioctl(4, LOOP_CLR_FD) = 0 [pid 5881] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5881] close(4) = 0 [pid 5881] close(3) = 0 [pid 5881] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5881] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5881] exit_group(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=22 /* 0.22 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 5882 attached [pid 5882] set_robust_list(0x55556ad69660, 24) = 0 [pid 5882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5882 [pid 5882] <... prctl resumed>) = 0 [pid 5882] setpgid(0, 0) = 0 [pid 5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5882] write(3, "1000", 4) = 4 [pid 5882] close(3) = 0 [pid 5882] write(1, "executing program\n", 18executing program ) = 18 [pid 5882] memfd_create("syzkaller", 0) = 3 [pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5882] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5882] exit_group(0) = ? [pid 5882] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5882, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5883] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5883 [pid 5883] <... set_robust_list resumed>) = 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 executing program [pid 5883] write(1, "executing program\n", 18) = 18 [pid 5883] memfd_create("syzkaller", 0) = 3 [pid 5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5883] munmap(0x7f7a66200000, 138412032) = 0 [pid 5883] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5883] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5883] ioctl(4, LOOP_CLR_FD) = 0 [pid 5883] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5883] close(4) = 0 [pid 5883] close(3) = 0 [pid 5883] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5883] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5883] exit_group(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=3 /* 0.03 s */, si_stime=24 /* 0.24 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 5884 attached , child_tidptr=0x55556ad69650) = 5884 [pid 5884] set_robust_list(0x55556ad69660, 24) = 0 [pid 5884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5884] setpgid(0, 0) = 0 [pid 5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5884] write(3, "1000", 4) = 4 [pid 5884] close(3) = 0 [pid 5884] write(1, "executing program\n", 18executing program ) = 18 [pid 5884] memfd_create("syzkaller", 0) = 3 [pid 5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5884] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5884] exit_group(0) = ? [pid 5884] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5884, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5885] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5885 [pid 5885] <... set_robust_list resumed>) = 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 [pid 5885] write(1, "executing program\n", 18executing program ) = 18 [pid 5885] memfd_create("syzkaller", 0) = 3 [pid 5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5885] munmap(0x7f7a66200000, 138412032) = 0 [pid 5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5885] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5885] ioctl(4, LOOP_CLR_FD) = 0 [pid 5885] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5885] close(4) = 0 [pid 5885] close(3) = 0 [pid 5885] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5885] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5885] exit_group(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=5 /* 0.05 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=0x55556ad69650) = 5886 ./strace-static-x86_64: Process 5886 attached [pid 5886] set_robust_list(0x55556ad69660, 24) = 0 [pid 5886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5886] setpgid(0, 0) = 0 [pid 5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5886] write(3, "1000", 4executing program ) = 4 [pid 5886] close(3) = 0 [pid 5886] write(1, "executing program\n", 18) = 18 [pid 5886] memfd_create("syzkaller", 0) = 3 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5886] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5886] exit_group(0) = ? [pid 5886] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5886, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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=0x55556ad69650) = 5887 [pid 5887] set_robust_list(0x55556ad69660, 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] memfd_create("syzkaller", 0) = 3 [pid 5887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5887] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5887] munmap(0x7f7a66200000, 138412032) = 0 [pid 5887] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5887] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5887] ioctl(4, LOOP_CLR_FD) = 0 [pid 5887] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5887] close(4) = 0 [pid 5887] close(3) = 0 [pid 5887] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5887] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5887] exit_group(0) = ? [pid 5887] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=6 /* 0.06 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 5888 attached , child_tidptr=0x55556ad69650) = 5888 [pid 5888] set_robust_list(0x55556ad69660, 24) = 0 [pid 5888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5888] setpgid(0, 0) = 0 [pid 5888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "1000", 4) = 4 [pid 5888] close(3) = 0 [pid 5888] write(1, "executing program\n", 18executing program ) = 18 [pid 5888] memfd_create("syzkaller", 0) = 3 [pid 5888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5888] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5888] exit_group(0) = ? [pid 5888] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5888, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=27 /* 0.27 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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=0x55556ad69650) = 5889 [pid 5889] set_robust_list(0x55556ad69660, 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(3executing program ) = 0 [pid 5889] write(1, "executing program\n", 18) = 18 [pid 5889] memfd_create("syzkaller", 0) = 3 [pid 5889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5889] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5889] munmap(0x7f7a66200000, 138412032) = 0 [pid 5889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5889] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5889] ioctl(4, LOOP_CLR_FD) = 0 [pid 5889] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5889] close(4) = 0 [pid 5889] close(3) = 0 [pid 5889] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5889] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5889] exit_group(0) = ? [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=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5890 attached [pid 5890] set_robust_list(0x55556ad69660, 24) = 0 [pid 5890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5890 [pid 5890] <... prctl resumed>) = 0 [pid 5890] setpgid(0, 0) = 0 [pid 5890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5890] write(3, "1000", 4) = 4 [pid 5890] close(3executing program ) = 0 [pid 5890] write(1, "executing program\n", 18) = 18 [pid 5890] memfd_create("syzkaller", 0) = 3 [pid 5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5890] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5890] exit_group(0) = ? [pid 5890] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5890, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 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 5891 attached [pid 5891] set_robust_list(0x55556ad69660, 24) = 0 [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5891] setpgid(0, 0) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5891 [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] memfd_create("syzkaller", 0) = 3 [pid 5891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5891] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5891] munmap(0x7f7a66200000, 138412032) = 0 [pid 5891] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5891] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5891] ioctl(4, LOOP_CLR_FD) = 0 [pid 5891] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5891] close(4) = 0 [pid 5891] close(3) = 0 [pid 5891] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5891] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5891] exit_group(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=5 /* 0.05 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5892 attached [pid 5892] set_robust_list(0x55556ad69660, 24) = 0 [pid 5892] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5892 [pid 5892] <... prctl resumed>) = 0 [pid 5892] setpgid(0, 0) = 0 [pid 5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5892] write(3, "1000", 4) = 4 [pid 5892] close(3) = 0 executing program [pid 5892] write(1, "executing program\n", 18) = 18 [pid 5892] memfd_create("syzkaller", 0) = 3 [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5892] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5892] exit_group(0) = ? [pid 5892] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5893] set_robust_list(0x55556ad69660, 24) = 0 [pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5893 [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 executing program [pid 5893] write(1, "executing program\n", 18) = 18 [pid 5893] memfd_create("syzkaller", 0) = 3 [pid 5893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5893] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5893] munmap(0x7f7a66200000, 138412032) = 0 [pid 5893] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5893] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5893] ioctl(4, LOOP_CLR_FD) = 0 [pid 5893] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5893] close(4) = 0 [pid 5893] close(3) = 0 [pid 5893] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5893] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5893] exit_group(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=6 /* 0.06 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5894 attached , child_tidptr=0x55556ad69650) = 5894 [pid 5894] set_robust_list(0x55556ad69660, 24) = 0 [pid 5894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5894] setpgid(0, 0) = 0 [pid 5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5894] write(3, "1000", 4) = 4 [pid 5894] close(3) = 0 executing program [pid 5894] write(1, "executing program\n", 18) = 18 [pid 5894] memfd_create("syzkaller", 0) = 3 [pid 5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5894] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5894] exit_group(0) = ? [pid 5894] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5894, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5895] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5895 [pid 5895] <... set_robust_list resumed>) = 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] memfd_create("syzkaller", 0) = 3 [pid 5895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5895] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5895] munmap(0x7f7a66200000, 138412032) = 0 [pid 5895] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5895] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5895] ioctl(4, LOOP_CLR_FD) = 0 [pid 5895] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5895] close(4) = 0 [pid 5895] close(3) = 0 [pid 5895] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5895] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5895] exit_group(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=5 /* 0.05 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 5896 attached [pid 5896] set_robust_list(0x55556ad69660, 24) = 0 [pid 5896] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5896 [pid 5896] <... prctl resumed>) = 0 [pid 5896] setpgid(0, 0) = 0 [pid 5896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5896] write(3, "1000", 4) = 4 [pid 5896] close(3) = 0 executing program [pid 5896] write(1, "executing program\n", 18) = 18 [pid 5896] memfd_create("syzkaller", 0) = 3 [pid 5896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5896] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5896] exit_group(0) = ? [pid 5896] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5896, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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=0x55556ad69650) = 5897 [pid 5897] set_robust_list(0x55556ad69660, 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] memfd_create("syzkaller", 0) = 3 [pid 5897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5897] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5897] munmap(0x7f7a66200000, 138412032) = 0 [pid 5897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5897] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5897] ioctl(4, LOOP_CLR_FD) = 0 [pid 5897] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5897] close(4) = 0 [pid 5897] close(3) = 0 [pid 5897] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5897] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5897] exit_group(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=6 /* 0.06 s */, si_stime=21 /* 0.21 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 5898 attached [pid 5898] set_robust_list(0x55556ad69660, 24) = 0 [pid 5898] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5898 [pid 5898] <... prctl resumed>) = 0 [pid 5898] setpgid(0, 0) = 0 [pid 5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5898] write(3, "1000", 4) = 4 [pid 5898] close(3) = 0 [pid 5898] write(1, "executing program\n", 18) = 18 [pid 5898] memfd_create("syzkaller", 0) = 3 [pid 5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5898] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5898] exit_group(0) = ? [pid 5898] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5898, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5899] set_robust_list(0x55556ad69660, 24) = 0 [pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5899 [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 executing program [pid 5899] write(1, "executing program\n", 18) = 18 [pid 5899] memfd_create("syzkaller", 0) = 3 [pid 5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5899] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5899] munmap(0x7f7a66200000, 138412032) = 0 [pid 5899] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5899] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5899] ioctl(4, LOOP_CLR_FD) = 0 [pid 5899] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5899] close(4) = 0 [pid 5899] close(3) = 0 [pid 5899] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5899] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5899] exit_group(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=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5900 attached [pid 5900] set_robust_list(0x55556ad69660, 24) = 0 [pid 5900] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5900 [pid 5900] <... prctl resumed>) = 0 [pid 5900] setpgid(0, 0) = 0 [pid 5900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "1000", 4) = 4 [pid 5900] close(3) = 0 [pid 5900] write(1, "executing program\n", 18executing program ) = 18 [pid 5900] memfd_create("syzkaller", 0) = 3 [pid 5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5900] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5900] exit_group(0) = ? [pid 5900] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5900, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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=0x55556ad69650) = 5901 [pid 5901] set_robust_list(0x55556ad69660, 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(3executing program ) = 0 [pid 5901] write(1, "executing program\n", 18) = 18 [pid 5901] memfd_create("syzkaller", 0) = 3 [pid 5901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5901] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5901] munmap(0x7f7a66200000, 138412032) = 0 [pid 5901] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5901] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5901] ioctl(4, LOOP_CLR_FD) = 0 [pid 5901] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5901] close(4) = 0 [pid 5901] close(3) = 0 [pid 5901] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5901] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5901] exit_group(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=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5902 attached [pid 5902] set_robust_list(0x55556ad69660, 24) = 0 [pid 5902] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5902 [pid 5902] <... prctl resumed>) = 0 [pid 5902] setpgid(0, 0) = 0 [pid 5902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "1000", 4) = 4 [pid 5902] close(3) = 0 [pid 5902] write(1, "executing program\n", 18executing program ) = 18 [pid 5902] memfd_create("syzkaller", 0) = 3 [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5902] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5902] exit_group(0) = ? [pid 5902] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5902, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5903] set_robust_list(0x55556ad69660, 24) = 0 [pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5903 [pid 5903] <... prctl resumed>) = 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 executing program [pid 5903] write(1, "executing program\n", 18) = 18 [pid 5903] memfd_create("syzkaller", 0) = 3 [pid 5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5903] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5903] munmap(0x7f7a66200000, 138412032) = 0 [pid 5903] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5903] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5903] ioctl(4, LOOP_CLR_FD) = 0 [pid 5903] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5903] close(4) = 0 [pid 5903] close(3) = 0 [pid 5903] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5903] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5903] exit_group(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=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5904 attached [pid 5904] set_robust_list(0x55556ad69660, 24) = 0 [pid 5904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5904] setpgid(0, 0) = 0 [pid 5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5904 [pid 5904] <... openat resumed>) = 3 [pid 5904] write(3, "1000", 4) = 4 [pid 5904] close(3) = 0 [pid 5904] write(1, "executing program\n", 18executing program ) = 18 [pid 5904] memfd_create("syzkaller", 0) = 3 [pid 5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5904] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5904] exit_group(0) = ? [pid 5904] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=3 /* 0.03 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./strace-static-x86_64: Process 5905 attached [pid 5905] set_robust_list(0x55556ad69660, 24) = 0 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5905 [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] memfd_create("syzkaller", 0) = 3 [pid 5905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5905] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5905] munmap(0x7f7a66200000, 138412032) = 0 [pid 5905] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5905] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5905] ioctl(4, LOOP_CLR_FD) = 0 [pid 5905] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5905] close(4) = 0 [pid 5905] close(3) = 0 [pid 5905] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5905] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5905] exit_group(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=5 /* 0.05 s */, si_stime=21 /* 0.21 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 5906 attached [pid 5906] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5906 [pid 5906] <... set_robust_list resumed>) = 0 [pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5906] setpgid(0, 0) = 0 [pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5906] write(3, "1000", 4) = 4 [pid 5906] close(3) = 0 [pid 5906] write(1, "executing program\n", 18executing program ) = 18 [pid 5906] memfd_create("syzkaller", 0) = 3 [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5906] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5906] exit_group(0) = ? [pid 5906] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5906, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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=0x55556ad69650) = 5907 [pid 5907] set_robust_list(0x55556ad69660, 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 executing program [pid 5907] write(1, "executing program\n", 18) = 18 [pid 5907] memfd_create("syzkaller", 0) = 3 [pid 5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5907] munmap(0x7f7a66200000, 138412032) = 0 [pid 5907] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5907] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5907] ioctl(4, LOOP_CLR_FD) = 0 [pid 5907] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5907] close(4) = 0 [pid 5907] close(3) = 0 [pid 5907] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5907] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5907] exit_group(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=5 /* 0.05 s */, si_stime=24 /* 0.24 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 5908 attached [pid 5908] set_robust_list(0x55556ad69660, 24) = 0 [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5908] setpgid(0, 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5908 [pid 5908] <... setpgid resumed>) = 0 [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5908] write(3, "1000", 4) = 4 [pid 5908] close(3executing program ) = 0 [pid 5908] write(1, "executing program\n", 18) = 18 [pid 5908] memfd_create("syzkaller", 0) = 3 [pid 5908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5908] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5908] exit_group(0) = ? [pid 5908] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5908, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5909 attached [pid 5909] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5909 [pid 5909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5909] setpgid(0, 0) = 0 [pid 5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5909] write(3, "1000", 4) = 4 [pid 5909] close(3) = 0 [pid 5909] write(1, "executing program\n", 18executing program ) = 18 [pid 5909] memfd_create("syzkaller", 0) = 3 [pid 5909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5909] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5909] munmap(0x7f7a66200000, 138412032) = 0 [pid 5909] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5909] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5909] ioctl(4, LOOP_CLR_FD) = 0 [pid 5909] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5909] close(4) = 0 [pid 5909] close(3) = 0 [pid 5909] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5909] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5909] exit_group(0) = ? [pid 5909] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5909, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5910 attached , child_tidptr=0x55556ad69650) = 5910 [pid 5910] set_robust_list(0x55556ad69660, 24) = 0 [pid 5910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5910] setpgid(0, 0) = 0 [pid 5910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5910] write(3, "1000", 4) = 4 [pid 5910] close(3) = 0 [pid 5910] write(1, "executing program\n", 18executing program ) = 18 [pid 5910] memfd_create("syzkaller", 0) = 3 [pid 5910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5910] munmap(0x7f7a66200000, 138412032) = 0 [pid 5910] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5910] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5910] ioctl(4, LOOP_CLR_FD) = 0 [pid 5910] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5910] close(4) = 0 [pid 5910] close(3) = 0 [pid 5910] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5910] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5910] exit_group(0) = ? [pid 5910] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5910, si_uid=0, si_status=0, si_utime=3 /* 0.03 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./strace-static-x86_64: Process 5911 attached [pid 5911] set_robust_list(0x55556ad69660, 24) = 0 [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5911] setpgid(0, 0) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5911 [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 executing program [pid 5911] write(1, "executing program\n", 18) = 18 [pid 5911] memfd_create("syzkaller", 0) = 3 [pid 5911] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5911] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5911] munmap(0x7f7a66200000, 138412032) = 0 [pid 5911] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5911] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5911] ioctl(4, LOOP_CLR_FD) = 0 [pid 5911] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5911] close(4) = 0 [pid 5911] close(3) = 0 [pid 5911] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5911] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5911] exit_group(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=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5912 attached [pid 5912] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5912 [pid 5912] <... set_robust_list resumed>) = 0 [pid 5912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5912] setpgid(0, 0) = 0 [pid 5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5912] write(3, "1000", 4) = 4 [pid 5912] close(3) = 0 [pid 5912] write(1, "executing program\n", 18executing program ) = 18 [pid 5912] memfd_create("syzkaller", 0) = 3 [pid 5912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5912] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5912] exit_group(0) = ? [pid 5912] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5912, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5913] set_robust_list(0x55556ad69660, 24) = 0 [pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5913 [pid 5913] <... prctl resumed>) = 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 executing program [pid 5913] write(1, "executing program\n", 18) = 18 [pid 5913] memfd_create("syzkaller", 0) = 3 [pid 5913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5913] munmap(0x7f7a66200000, 138412032) = 0 [pid 5913] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5913] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5913] ioctl(4, LOOP_CLR_FD) = 0 [pid 5913] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5913] close(4) = 0 [pid 5913] close(3) = 0 [pid 5913] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5913] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5913] exit_group(0) = ? [pid 5913] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5913, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5914 attached [pid 5914] set_robust_list(0x55556ad69660, 24) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5914 [pid 5914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5914] setpgid(0, 0) = 0 [pid 5914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5914] write(3, "1000", 4) = 4 executing program [pid 5914] close(3) = 0 [pid 5914] write(1, "executing program\n", 18) = 18 [pid 5914] memfd_create("syzkaller", 0) = 3 [pid 5914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5914] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5914] exit_group(0) = ? [pid 5914] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5914, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5915 attached [pid 5915] set_robust_list(0x55556ad69660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5915 [pid 5915] <... set_robust_list resumed>) = 0 [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5915] setpgid(0, 0) = 0 [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5915] write(3, "1000", 4) = 4 [pid 5915] close(3) = 0 executing program [pid 5915] write(1, "executing program\n", 18) = 18 [pid 5915] memfd_create("syzkaller", 0) = 3 [pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5915] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5915] munmap(0x7f7a66200000, 138412032) = 0 [pid 5915] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5915] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5915] ioctl(4, LOOP_CLR_FD) = 0 [pid 5915] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5915] close(4) = 0 [pid 5915] close(3) = 0 [pid 5915] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5915] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5915] exit_group(0) = ? [pid 5915] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5916] set_robust_list(0x55556ad69660, 24) = 0 [pid 5916] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5916 [pid 5916] <... prctl resumed>) = 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 executing program [pid 5916] close(3) = 0 [pid 5916] write(1, "executing program\n", 18) = 18 [pid 5916] memfd_create("syzkaller", 0) = 3 [pid 5916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5916] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5916] munmap(0x7f7a66200000, 138412032) = 0 [pid 5916] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5916] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5916] ioctl(4, LOOP_CLR_FD) = 0 [pid 5916] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5916] close(4) = 0 [pid 5916] close(3) = 0 [pid 5916] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5916] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5916] exit_group(0) = ? [pid 5916] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5916, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5917 attached [pid 5917] set_robust_list(0x55556ad69660, 24) = 0 [pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5917 [pid 5917] <... prctl resumed>) = 0 [pid 5917] setpgid(0, 0executing program ) = 0 [pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5917] write(3, "1000", 4) = 4 [pid 5917] close(3) = 0 [pid 5917] write(1, "executing program\n", 18) = 18 [pid 5917] memfd_create("syzkaller", 0) = 3 [pid 5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5917] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5917] exit_group(0) = ? [pid 5917] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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 [pid 5918] set_robust_list(0x55556ad69660, 24) = 0 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5918 [pid 5918] <... prctl resumed>) = 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] memfd_create("syzkaller", 0) = 3 [pid 5918] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5918] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5918] munmap(0x7f7a66200000, 138412032) = 0 [pid 5918] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5918] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5918] ioctl(4, LOOP_CLR_FD) = 0 [pid 5918] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5918] close(4) = 0 [pid 5918] close(3) = 0 [pid 5918] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5918] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5918] exit_group(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=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./strace-static-x86_64: Process 5919 attached [pid 5919] set_robust_list(0x55556ad69660, 24) = 0 [pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5919 [pid 5919] <... prctl resumed>) = 0 [pid 5919] setpgid(0, 0) = 0 [pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5919] write(3, "1000", 4) = 4 [pid 5919] close(3) = 0 executing program [pid 5919] write(1, "executing program\n", 18) = 18 [pid 5919] memfd_create("syzkaller", 0) = 3 [pid 5919] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5919] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5919] exit_group(0) = ? [pid 5919] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5919, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, 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=0x55556ad69650) = 5920 [pid 5920] set_robust_list(0x55556ad69660, 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] memfd_create("syzkaller", 0) = 3 [pid 5920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5920] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5920] munmap(0x7f7a66200000, 138412032) = 0 [pid 5920] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5920] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5920] ioctl(4, LOOP_CLR_FD) = 0 [pid 5920] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5920] close(4) = 0 [pid 5920] close(3) = 0 [pid 5920] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5920] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5920] exit_group(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=4 /* 0.04 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5921 attached , child_tidptr=0x55556ad69650) = 5921 [pid 5921] set_robust_list(0x55556ad69660, 24) = 0 [pid 5921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5921] setpgid(0, 0) = 0 [pid 5921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5921] write(3, "1000", 4) = 4 [pid 5921] close(3) = 0 executing program [pid 5921] write(1, "executing program\n", 18) = 18 [pid 5921] memfd_create("syzkaller", 0) = 3 [pid 5921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [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(0x7f7a66200000, 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] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5921] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5921] exit_group(0) = ? [pid 5921] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5921, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 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 5922 attached [pid 5922] set_robust_list(0x55556ad69660, 24) = 0 [pid 5922] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5922 executing program [pid 5922] <... prctl resumed>) = 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", 18) = 18 [pid 5922] memfd_create("syzkaller", 0) = 3 [pid 5922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [pid 5922] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5922] munmap(0x7f7a66200000, 138412032) = 0 [pid 5922] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5922] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5922] ioctl(4, LOOP_CLR_FD) = 0 [pid 5922] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5922] close(4) = 0 [pid 5922] close(3) = 0 [pid 5922] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5922] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5922] exit_group(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=4 /* 0.04 s */, si_stime=22 /* 0.22 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 5923 attached [pid 5923] set_robust_list(0x55556ad69660, 24) = 0 [pid 5923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] <... clone resumed>, child_tidptr=0x55556ad69650) = 5923 [pid 5923] setpgid(0, 0) = 0 [pid 5923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5923] write(3, "1000", 4) = 4 [pid 5923] close(3executing program ) = 0 [pid 5923] write(1, "executing program\n", 18) = 18 [pid 5923] memfd_create("syzkaller", 0) = 3 [pid 5923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7a66200000 [ 165.374936][ T2957] ------------[ cut here ]------------ [ 165.380698][ T2957] WARNING: CPU: 0 PID: 2957 at block/bio.c:513 bio_alloc_bioset+0xd45/0x1110 [ 165.389674][ T2957] Modules linked in: [ 165.393820][ T2957] CPU: 0 UID: 0 PID: 2957 Comm: kworker/u8:7 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) [ 165.404329][ T2957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 165.414448][ T2957] Workqueue: writeback wb_workfn (flush-bcachefs-1) [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 [ 165.421112][ T2957] RIP: 0010:bio_alloc_bioset+0xd45/0x1110 [ 165.427038][ T2957] Code: db f6 ff 81 ce 00 20 09 00 e8 47 2c 7f fd 48 85 c0 0f 84 8b 00 00 00 49 89 c7 e8 86 d2 28 fd e9 65 f8 ff ff e8 7c d2 28 fd 90 <0f> 0b 90 e9 41 fb ff ff e8 6e d2 28 fd 90 0f 0b 90 e9 04 fb ff ff [ 165.446756][ T2957] RSP: 0018:ffffc9000b5d6ee0 EFLAGS: 00010293 [ 165.452876][ T2957] RAX: ffffffff84977b74 RBX: 0000000000000000 RCX: ffff88802f9e5a00 [ 165.461072][ T2957] RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000000 [pid 5923] munmap(0x7f7a66200000, 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 [ 165.469131][ T2957] RBP: dffffc0000000000 R08: ffff8880748c8948 R09: 1ffffd400039b650 [ 165.477172][ T2957] R10: dffffc0000000000 R11: fffff9400039b651 R12: 0000000000000001 [ 165.485253][ T2957] R13: ffff8880748c8948 R14: ffff8880748c8a60 R15: 0000000000000100 [ 165.493267][ T2957] FS: 0000000000000000(0000) GS:ffff888125c86000(0000) knlGS:0000000000000000 [ 165.502264][ T2957] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 165.508924][ T2957] CR2: 00007f5907c67000 CR3: 0000000028afe000 CR4: 00000000003526f0 [ 165.517004][ T2957] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [pid 5923] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5923] close(4) = 0 [ 165.525043][ T2957] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 165.533042][ T2957] Call Trace: [ 165.536441][ T2957] [ 165.539413][ T2957] ? folio_unlock+0x101/0x160 [ 165.544182][ T2957] __bch2_writepage+0x1581/0x2790 [ 165.549312][ T2957] ? __pfx___bch2_writepage+0x10/0x10 [ 165.554782][ T2957] write_cache_pages+0x64/0x100 [ 165.559696][ T2957] bch2_writepages+0xf9/0x2d0 [ 165.564474][ T2957] ? __pfx_bch2_writepages+0x10/0x10 [ 165.569807][ T2957] do_writepages+0x32b/0x550 [ 165.574504][ T2957] ? reacquire_held_locks+0x127/0x1d0 [ 165.579922][ T2957] ? writeback_sb_inodes+0x372/0x1000 [ 165.585411][ T2957] __writeback_single_inode+0x145/0xff0 [ 165.591006][ T2957] ? do_raw_spin_unlock+0x122/0x240 [ 165.596295][ T2957] writeback_sb_inodes+0x6b5/0x1000 [ 165.601562][ T2957] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 165.607348][ T2957] ? __pfx_move_expired_inodes+0x10/0x10 [ 165.613038][ T2957] __writeback_inodes_wb+0x111/0x240 [ 165.618473][ T2957] wb_writeback+0x44f/0xaf0 [ 165.623066][ T2957] ? queue_io+0x351/0x590 [ 165.627952][ T2957] ? __pfx_wb_writeback+0x10/0x10 [ 165.633161][ T2957] wb_workfn+0xaef/0xef0 [ 165.637549][ T2957] ? __pfx_wb_workfn+0x10/0x10 [ 165.642384][ T2957] ? __lock_acquire+0xab9/0xd20 [ 165.647372][ T2957] ? process_scheduled_works+0x9ef/0x17b0 [ 165.653159][ T2957] ? _raw_spin_unlock_irq+0x23/0x50 [ 165.658486][ T2957] ? process_scheduled_works+0x9ef/0x17b0 [ 165.664311][ T2957] ? process_scheduled_works+0x9ef/0x17b0 [ 165.670088][ T2957] process_scheduled_works+0xade/0x17b0 [ 165.675773][ T2957] ? __pfx_process_scheduled_works+0x10/0x10 [ 165.681846][ T2957] worker_thread+0x8a0/0xda0 [ 165.686602][ T2957] kthread+0x70e/0x8a0 [ 165.690728][ T2957] ? __pfx_worker_thread+0x10/0x10 [ 165.695996][ T2957] ? __pfx_kthread+0x10/0x10 [ 165.700639][ T2957] ? _raw_spin_unlock_irq+0x23/0x50 [ 165.705961][ T2957] ? lockdep_hardirqs_on+0x9c/0x150 [ 165.711215][ T2957] ? __pfx_kthread+0x10/0x10 [ 165.715901][ T2957] ret_from_fork+0x3fc/0x770 [ 165.720552][ T2957] ? __pfx_ret_from_fork+0x10/0x10 [pid 5923] close(3) = 0 [pid 5923] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 001) = -1 EISDIR (Is a directory) [pid 5923] write(-1, "\x61\x20\x2a\x3a\x2a\x20\x72\x77\x00", 9) = -1 EBADF (Bad file descriptor) [pid 5923] exit_group(0) = ? [pid 5923] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5923, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 [ 165.725838][ T2957] ? __switch_to_asm+0x39/0x70 [ 165.730654][ T2957] ? __switch_to_asm+0x33/0x70 [ 165.735491][ T2957] ? __pfx_kthread+0x10/0x10 [ 165.740122][ T2957] ret_from_fork_asm+0x1a/0x30 [ 165.744997][ T2957] [ 165.748060][ T2957] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 165.755376][ T2957] CPU: 0 UID: 0 PID: 2957 Comm: kworker/u8:7 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) [ 165.765841][ T2957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 165.775939][ T2957] Workqueue: writeback wb_workfn (flush-bcachefs-1) [ 165.782572][ T2957] Call Trace: [ 165.785866][ T2957] [ 165.788813][ T2957] dump_stack_lvl+0x99/0x250 [ 165.793441][ T2957] ? __asan_memcpy+0x40/0x70 [ 165.798053][ T2957] ? __pfx_dump_stack_lvl+0x10/0x10 [ 165.803278][ T2957] ? __pfx__printk+0x10/0x10 [ 165.807894][ T2957] panic+0x2db/0x790 [ 165.811826][ T2957] ? __pfx_panic+0x10/0x10 [ 165.816261][ T2957] ? show_trace_log_lvl+0x4fb/0x550 [ 165.821492][ T2957] ? ret_from_fork_asm+0x1a/0x30 [ 165.826447][ T2957] __warn+0x31b/0x4b0 [ 165.830449][ T2957] ? bio_alloc_bioset+0xd45/0x1110 [ 165.835584][ T2957] ? bio_alloc_bioset+0xd45/0x1110 [ 165.840713][ T2957] report_bug+0x2be/0x4f0 [ 165.845065][ T2957] ? bio_alloc_bioset+0xd45/0x1110 [ 165.850191][ T2957] ? bio_alloc_bioset+0xd45/0x1110 [ 165.855318][ T2957] ? bio_alloc_bioset+0xd47/0x1110 [ 165.860441][ T2957] handle_bug+0x84/0x160 [ 165.864693][ T2957] exc_invalid_op+0x1a/0x50 [ 165.869209][ T2957] asm_exc_invalid_op+0x1a/0x20 [ 165.874161][ T2957] RIP: 0010:bio_alloc_bioset+0xd45/0x1110 [ 165.879989][ T2957] Code: db f6 ff 81 ce 00 20 09 00 e8 47 2c 7f fd 48 85 c0 0f 84 8b 00 00 00 49 89 c7 e8 86 d2 28 fd e9 65 f8 ff ff e8 7c d2 28 fd 90 <0f> 0b 90 e9 41 fb ff ff e8 6e d2 28 fd 90 0f 0b 90 e9 04 fb ff ff [ 165.899616][ T2957] RSP: 0018:ffffc9000b5d6ee0 EFLAGS: 00010293 [ 165.905705][ T2957] RAX: ffffffff84977b74 RBX: 0000000000000000 RCX: ffff88802f9e5a00 [ 165.913690][ T2957] RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000000 [ 165.921693][ T2957] RBP: dffffc0000000000 R08: ffff8880748c8948 R09: 1ffffd400039b650 [ 165.929714][ T2957] R10: dffffc0000000000 R11: fffff9400039b651 R12: 0000000000000001 [ 165.937717][ T2957] R13: ffff8880748c8948 R14: ffff8880748c8a60 R15: 0000000000000100 [ 165.945722][ T2957] ? bio_alloc_bioset+0xd44/0x1110 [ 165.950885][ T2957] ? folio_unlock+0x101/0x160 [ 165.955581][ T2957] __bch2_writepage+0x1581/0x2790 [ 165.960677][ T2957] ? __pfx___bch2_writepage+0x10/0x10 [ 165.966073][ T2957] write_cache_pages+0x64/0x100 [ 165.970950][ T2957] bch2_writepages+0xf9/0x2d0 [ 165.975651][ T2957] ? __pfx_bch2_writepages+0x10/0x10 [ 165.980962][ T2957] do_writepages+0x32b/0x550 [ 165.985598][ T2957] ? reacquire_held_locks+0x127/0x1d0 [ 165.991032][ T2957] ? writeback_sb_inodes+0x372/0x1000 [ 165.996454][ T2957] __writeback_single_inode+0x145/0xff0 [ 166.002110][ T2957] ? do_raw_spin_unlock+0x122/0x240 [ 166.007364][ T2957] writeback_sb_inodes+0x6b5/0x1000 [ 166.012690][ T2957] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 166.018378][ T2957] ? __pfx_move_expired_inodes+0x10/0x10 [ 166.024126][ T2957] __writeback_inodes_wb+0x111/0x240 [ 166.029441][ T2957] wb_writeback+0x44f/0xaf0 [ 166.033969][ T2957] ? queue_io+0x351/0x590 [ 166.038322][ T2957] ? __pfx_wb_writeback+0x10/0x10 [ 166.043374][ T2957] wb_workfn+0xaef/0xef0 [ 166.047656][ T2957] ? __pfx_wb_workfn+0x10/0x10 [ 166.052453][ T2957] ? __lock_acquire+0xab9/0xd20 [ 166.057338][ T2957] ? process_scheduled_works+0x9ef/0x17b0 [ 166.063089][ T2957] ? _raw_spin_unlock_irq+0x23/0x50 [ 166.068311][ T2957] ? process_scheduled_works+0x9ef/0x17b0 [ 166.074056][ T2957] ? process_scheduled_works+0x9ef/0x17b0 [ 166.079802][ T2957] process_scheduled_works+0xade/0x17b0 [ 166.085398][ T2957] ? __pfx_process_scheduled_works+0x10/0x10 [ 166.091420][ T2957] worker_thread+0x8a0/0xda0 [ 166.096054][ T2957] kthread+0x70e/0x8a0 [ 166.100142][ T2957] ? __pfx_worker_thread+0x10/0x10 [ 166.105279][ T2957] ? __pfx_kthread+0x10/0x10 [ 166.109892][ T2957] ? _raw_spin_unlock_irq+0x23/0x50 [ 166.115114][ T2957] ? lockdep_hardirqs_on+0x9c/0x150 [ 166.120334][ T2957] ? __pfx_kthread+0x10/0x10 [ 166.124951][ T2957] ret_from_fork+0x3fc/0x770 [ 166.129566][ T2957] ? __pfx_ret_from_fork+0x10/0x10 [ 166.134702][ T2957] ? __switch_to_asm+0x39/0x70 [ 166.139486][ T2957] ? __switch_to_asm+0x33/0x70 [ 166.144270][ T2957] ? __pfx_kthread+0x10/0x10 [ 166.148883][ T2957] ret_from_fork_asm+0x1a/0x30 [ 166.153676][ T2957] [ 166.157062][ T2957] Kernel Offset: disabled [ 166.161410][ T2957] Rebooting in 86400 seconds..