./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor104664812 <...> Warning: Permanently added '10.128.1.46' (ED25519) to the list of known hosts. execve("./syz-executor104664812", ["./syz-executor104664812"], 0x7ffcc68e9960 /* 10 vars */) = 0 brk(NULL) = 0x555556b75000 brk(0x555556b75d00) = 0x555556b75d00 arch_prctl(ARCH_SET_FS, 0x555556b75380) = 0 set_tid_address(0x555556b75650) = 5021 set_robust_list(0x555556b75660, 24) = 0 rseq(0x555556b75ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor104664812", 4096) = 27 getrandom("\xa7\x2c\xbf\xeb\x1e\xd6\x15\xa1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556b75d00 brk(0x555556b96d00) = 0x555556b96d00 brk(0x555556b97000) = 0x555556b97000 mprotect(0x7fa22eebc000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5022 attached , child_tidptr=0x555556b75650) = 5022 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] set_robust_list(0x555556b75660, 24) = 0 [pid 5021] <... clone resumed>, child_tidptr=0x555556b75650) = 5023 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5023 attached [pid 5021] <... clone resumed>, child_tidptr=0x555556b75650) = 5024 [pid 5022] <... openat resumed>) = 3 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5023] set_robust_list(0x555556b75660, 24 [pid 5021] <... clone resumed>, child_tidptr=0x555556b75650) = 5025 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] close(3) = 0 [pid 5021] <... clone resumed>, child_tidptr=0x555556b75650) = 5026 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b75650) = 5027 ./strace-static-x86_64: Process 5026 attached [pid 5026] set_robust_list(0x555556b75660, 24) = 0 [pid 5026] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 ./strace-static-x86_64: Process 5025 attached [pid 5025] set_robust_list(0x555556b75660, 24) = 0 [pid 5025] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5026] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5026] close(3) = 0 [pid 5026] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5023] <... set_robust_list resumed>) = 0 [pid 5022] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5025] <... openat resumed>) = 3 [pid 5025] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5025] close(3) = 0 [pid 5025] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] <... clone resumed>, child_tidptr=0x555556b75650) = 5028 [pid 5026] <... clone resumed>, child_tidptr=0x555556b75650) = 5029 [pid 5023] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5025] <... clone resumed>, child_tidptr=0x555556b75650) = 5030 ./strace-static-x86_64: Process 5028 attached [pid 5028] set_robust_list(0x555556b75660, 24) = 0 [pid 5028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5023] <... openat resumed>) = 3 [pid 5028] setpgid(0, 0) = 0 [pid 5028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5023] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5028] <... openat resumed>) = 3 [pid 5028] write(3, "1000", 4) = 4 [pid 5028] close(3) = 0 [pid 5023] close(3) = 0 [pid 5023] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 ./strace-static-x86_64: Process 5029 attached [pid 5029] set_robust_list(0x555556b75660, 24 [pid 5028] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5029] <... set_robust_list resumed>) = 0 [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5027 attached [pid 5023] <... clone resumed>, child_tidptr=0x555556b75650) = 5031 [pid 5028] <... openat resumed>) = 4 [pid 5029] <... prctl resumed>) = 0 [pid 5029] setpgid(0, 0) = 0 [pid 5027] set_robust_list(0x555556b75660, 24./strace-static-x86_64: Process 5030 attached [pid 5028] sendfile(4, 3, [30] [pid 5027] <... set_robust_list resumed>) = 0 [pid 5030] set_robust_list(0x555556b75660, 24 [pid 5029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5027] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5030] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5024 attached [pid 5030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5027] <... openat resumed>) = 3 [pid 5029] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5031 attached [pid 5029] write(3, "1000", 4 [pid 5031] set_robust_list(0x555556b75660, 24 [pid 5030] <... prctl resumed>) = 0 [pid 5029] <... write resumed>) = 4 [pid 5031] <... set_robust_list resumed>) = 0 [pid 5029] close(3 [pid 5030] setpgid(0, 0 [pid 5027] ioctl(3, LOOP_CLR_FD [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] <... setpgid resumed>) = 0 [pid 5029] <... close resumed>) = 0 [pid 5027] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5031] <... prctl resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5024] set_robust_list(0x555556b75660, 24 [pid 5031] setpgid(0, 0 [pid 5029] <... openat resumed>) = 3 [pid 5031] <... setpgid resumed>) = 0 [pid 5030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5029] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5027] close(3 [pid 5024] <... set_robust_list resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5029] <... openat resumed>) = 4 [pid 5031] <... openat resumed>) = 3 [pid 5030] <... openat resumed>) = 3 [pid 5029] sendfile(4, 3, [30] [pid 5027] <... close resumed>) = 0 [pid 5031] write(3, "1000", 4 [pid 5030] write(3, "1000", 4 [pid 5024] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5031] <... write resumed>) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5030] <... write resumed>) = 4 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] <... openat resumed>) = 3 [pid 5030] close(3 [pid 5024] <... openat resumed>) = 3 [pid 5031] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5031] sendfile(4, 3, [30] [pid 5030] <... close resumed>) = 0 [pid 5024] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5033 attached [pid 5033] set_robust_list(0x555556b75660, 24) = 0 [pid 5033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5030] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5027] <... clone resumed>, child_tidptr=0x555556b75650) = 5033 [pid 5033] setpgid(0, 0 [pid 5024] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5030] <... openat resumed>) = 3 [pid 5024] close(3 [pid 5033] <... setpgid resumed>) = 0 [pid 5033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5030] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5024] <... close resumed>) = 0 [pid 5033] write(3, "1000", 4) = 4 [pid 5030] <... openat resumed>) = 4 [pid 5024] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5033] close(3) = 0 [pid 5030] sendfile(4, 3, [30] [pid 5033] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5033] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5033] sendfile(4, 3, [30] [pid 5024] <... clone resumed>, child_tidptr=0x555556b75650) = 5034 ./strace-static-x86_64: Process 5034 attached [pid 5034] set_robust_list(0x555556b75660, 24) = 0 [pid 5034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5034] setpgid(0, 0) = 0 [pid 5034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1000", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5034] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 53.607305][ T5031] syz-executor104 (5031): drop_caches: 1 [ 53.607305][ T5028] syz-executor104 (5028): drop_caches: 1 [ 53.610507][ T5030] syz-executor104 (5030): drop_caches: 1 [ 53.623473][ T5033] syz-executor104 (5033): drop_caches: 1 [ 53.645373][ T5029] syz-executor104 (5029): drop_caches: 1 [ 53.652765][ T5034] syz-executor104 (5034): drop_caches: 1 [pid 5034] sendfile(4, 3, [30] [pid 5028] <... sendfile resumed> => [640], 610) = 610 [ 53.956333][ T5028] syz-executor104 (5028): drop_caches: 1 [pid 5028] memfd_create("syzkaller", 0 [pid 5033] <... sendfile resumed> => [640], 610) = 610 [pid 5033] memfd_create("syzkaller", 0) = 5 [pid 5033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5028] <... memfd_create resumed>) = 5 [pid 5028] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5031] <... sendfile resumed> => [640], 610) = 610 [pid 5031] memfd_create("syzkaller", 0) = 5 [pid 5031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5030] <... sendfile resumed> => [640], 610) = 610 [ 54.016669][ T5033] syz-executor104 (5033): drop_caches: 1 [ 54.027820][ T5028] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5028 'syz-executor104' [ 54.047442][ T5031] syz-executor104 (5031): drop_caches: 1 [ 54.059247][ T5030] syz-executor104 (5030): drop_caches: 1 [pid 5030] memfd_create("syzkaller", 0) = 5 [pid 5030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5033] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5028] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5029] <... sendfile resumed> => [640], 610) = 610 [pid 5034] <... sendfile resumed> => [640], 610) = 610 [pid 5034] memfd_create("syzkaller", 0) = 5 [pid 5034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5029] memfd_create("syzkaller", 0) = 5 [pid 5029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5031] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5029] <... mmap resumed>) = 0x7fa2269ec000 [ 54.093405][ T5034] syz-executor104 (5034): drop_caches: 1 [ 54.125576][ T5029] syz-executor104 (5029): drop_caches: 1 [pid 5030] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5033] <... write resumed>) = 2097152 [pid 5033] munmap(0x7fa2269ec000, 2097152 [pid 5028] <... write resumed>) = 2097152 [pid 5033] <... munmap resumed>) = 0 [pid 5033] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5033] ioctl(6, LOOP_SET_FD, 5 [pid 5031] <... write resumed>) = 2097152 [pid 5029] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5028] munmap(0x7fa2269ec000, 2097152 [pid 5030] <... write resumed>) = 2097152 [pid 5028] <... munmap resumed>) = 0 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5033] <... ioctl resumed>) = 0 [pid 5033] close(5) = 0 [pid 5034] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5031] munmap(0x7fa2269ec000, 2097152 [pid 5030] munmap(0x7fa2269ec000, 2097152 [pid 5029] <... write resumed>) = 2097152 [pid 5028] <... openat resumed>) = 6 [pid 5033] mkdir("./file1", 0777 [pid 5030] <... munmap resumed>) = 0 [pid 5028] ioctl(6, LOOP_SET_FD, 5 [pid 5030] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5029] munmap(0x7fa2269ec000, 2097152 [pid 5028] <... ioctl resumed>) = 0 [pid 5030] <... openat resumed>) = 6 [pid 5030] ioctl(6, LOOP_SET_FD, 5 [pid 5031] <... munmap resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5031] ioctl(6, LOOP_SET_FD, 5 [pid 5033] <... mkdir resumed>) = 0 [pid 5030] <... ioctl resumed>) = 0 [pid 5029] <... munmap resumed>) = 0 [pid 5028] close(5 [pid 5033] mount("/dev/loop5", "./file1", "ntfs", 0, "" [pid 5031] <... ioctl resumed>) = 0 [pid 5030] close(5 [pid 5029] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5028] <... close resumed>) = 0 [pid 5031] close(5 [pid 5030] <... close resumed>) = 0 [pid 5029] <... openat resumed>) = 6 [pid 5028] mkdir("./file1", 0777 [pid 5030] mkdir("./file1", 0777 [pid 5029] ioctl(6, LOOP_SET_FD, 5 [pid 5028] <... mkdir resumed>) = -1 EEXIST (File exists) [ 54.211699][ T5033] loop5: detected capacity change from 0 to 4096 [ 54.238283][ T5028] loop0: detected capacity change from 0 to 4096 [ 54.249049][ T5030] loop3: detected capacity change from 0 to 4096 [ 54.253342][ T5031] loop1: detected capacity change from 0 to 4096 [pid 5030] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5028] mount("/dev/loop0", "./file1", "ntfs", 0, "" [pid 5030] mount("/dev/loop3", "./file1", "ntfs", 0, "" [pid 5031] <... close resumed>) = 0 [pid 5031] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5031] mount("/dev/loop1", "./file1", "ntfs", 0, "" [pid 5029] <... ioctl resumed>) = 0 [pid 5029] close(5) = 0 [pid 5029] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5029] mount("/dev/loop4", "./file1", "ntfs", 0, "" [pid 5034] <... write resumed>) = 2097152 [pid 5034] munmap(0x7fa2269ec000, 2097152) = 0 [ 54.269646][ T5029] loop4: detected capacity change from 0 to 4096 [ 54.305652][ T5030] ntfs: volume version 3.1. [pid 5030] <... mount resumed>) = 0 [pid 5030] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 5 [pid 5030] chdir("./file1") = 0 [pid 5030] ioctl(6, LOOP_CLR_FD) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5030] close(6 [pid 5034] <... openat resumed>) = 6 [pid 5030] <... close resumed>) = 0 [pid 5034] ioctl(6, LOOP_SET_FD, 5 [pid 5030] creat("./file1", 000 [pid 5034] <... ioctl resumed>) = 0 [pid 5030] <... creat resumed>) = 6 [ 54.321042][ T5028] ntfs: volume version 3.1. [ 54.328729][ T5033] ntfs: volume version 3.1. [ 54.339640][ T5031] ntfs: volume version 3.1. [ 54.346778][ T5034] loop2: detected capacity change from 0 to 4096 [pid 5028] <... mount resumed>) = 0 [pid 5028] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 5 [pid 5028] chdir("./file1" [pid 5033] <... mount resumed>) = 0 [pid 5030] exit_group(0 [pid 5028] <... chdir resumed>) = 0 [pid 5033] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5031] <... mount resumed>) = 0 [pid 5030] <... exit_group resumed>) = ? [pid 5028] ioctl(6, LOOP_CLR_FD [pid 5034] close(5 [pid 5033] <... openat resumed>) = 5 [pid 5031] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5030] +++ exited with 0 +++ [pid 5029] <... mount resumed>) = 0 [pid 5028] <... ioctl resumed>) = 0 [pid 5034] <... close resumed>) = 0 [pid 5033] chdir("./file1" [pid 5031] <... openat resumed>) = 5 [pid 5029] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5028] close(6 [pid 5034] mkdir("./file1", 0777 [pid 5033] <... chdir resumed>) = 0 [pid 5031] chdir("./file1" [pid 5029] <... openat resumed>) = 5 [pid 5028] <... close resumed>) = 0 [pid 5034] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5033] ioctl(6, LOOP_CLR_FD [pid 5031] <... chdir resumed>) = 0 [pid 5029] chdir("./file1" [pid 5028] creat("./file1", 000 [pid 5025] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5030, si_uid=0, si_status=0, si_utime=0, si_stime=40 /* 0.40 s */} --- [pid 5034] mount("/dev/loop2", "./file1", "ntfs", 0, "" [pid 5033] <... ioctl resumed>) = 0 [pid 5031] ioctl(6, LOOP_CLR_FD [pid 5029] <... chdir resumed>) = 0 [pid 5028] <... creat resumed>) = 6 [pid 5025] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5033] close(6 [pid 5031] <... ioctl resumed>) = 0 [pid 5029] ioctl(6, LOOP_CLR_FD [pid 5028] exit_group(0 [pid 5033] <... close resumed>) = 0 [pid 5031] close(6 [pid 5029] <... ioctl resumed>) = 0 [pid 5028] <... exit_group resumed>) = ? [pid 5033] creat("./file1", 000 [pid 5031] <... close resumed>) = 0 [pid 5029] close(6 [pid 5028] +++ exited with 0 +++ [pid 5025] <... openat resumed>) = 3 [pid 5033] <... creat resumed>) = 6 [ 54.368825][ T5029] ntfs: volume version 3.1. [pid 5031] creat("./file1", 000 [pid 5029] <... close resumed>) = 0 [pid 5033] exit_group(0 [pid 5031] <... creat resumed>) = 6 [pid 5029] creat("./file1", 000 [pid 5033] <... exit_group resumed>) = ? [pid 5031] exit_group(0 [pid 5029] <... creat resumed>) = 6 [pid 5033] +++ exited with 0 +++ [pid 5031] <... exit_group resumed>) = ? [pid 5029] exit_group(0 [pid 5025] ioctl(3, LOOP_CLR_FD [pid 5022] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5028, si_uid=0, si_status=0, si_utime=0, si_stime=29 /* 0.29 s */} --- [pid 5031] +++ exited with 0 +++ [pid 5029] <... exit_group resumed>) = ? [pid 5027] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5033, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5025] <... ioctl resumed>) = 0 [pid 5029] +++ exited with 0 +++ [pid 5025] close(3 [pid 5023] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5031, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5025] <... close resumed>) = 0 [pid 5026] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5029, si_uid=0, si_status=0, si_utime=0, si_stime=29 /* 0.29 s */} --- [pid 5026] restart_syscall(<... resuming interrupted clone ...> [pid 5025] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5023] restart_syscall(<... resuming interrupted clone ...> [pid 5026] <... restart_syscall resumed>) = 0 [pid 5023] <... restart_syscall resumed>) = 0 [pid 5026] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5026] ioctl(3, LOOP_CLR_FD [pid 5027] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5026] <... ioctl resumed>) = 0 [pid 5025] <... clone resumed>, child_tidptr=0x555556b75650) = 5036 [pid 5022] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5027] <... openat resumed>) = 3 [pid 5026] close(3./strace-static-x86_64: Process 5036 attached [pid 5027] ioctl(3, LOOP_CLR_FD [pid 5026] <... close resumed>) = 0 [pid 5023] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5022] <... openat resumed>) = 3 [pid 5026] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5036] set_robust_list(0x555556b75660, 24 [pid 5027] <... ioctl resumed>) = 0 [pid 5026] <... clone resumed>, child_tidptr=0x555556b75650) = 5037 [pid 5036] <... set_robust_list resumed>) = 0 [pid 5027] close(3 [pid 5023] <... openat resumed>) = 3 [pid 5022] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5037 attached [pid 5037] set_robust_list(0x555556b75660, 24) = 0 [pid 5037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5037] setpgid(0, 0) = 0 [pid 5022] <... ioctl resumed>) = 0 [pid 5036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5027] <... close resumed>) = 0 [pid 5023] ioctl(3, LOOP_CLR_FD [pid 5022] close(3 [pid 5036] <... prctl resumed>) = 0 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5023] <... ioctl resumed>) = 0 [pid 5036] setpgid(0, 0 [pid 5023] close(3 [pid 5022] <... close resumed>) = 0 [pid 5023] <... close resumed>) = 0 [pid 5023] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5036] <... setpgid resumed>) = 0 [pid 5022] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5027] <... clone resumed>, child_tidptr=0x555556b75650) = 5038 [pid 5023] <... clone resumed>, child_tidptr=0x555556b75650) = 5039 [pid 5037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] <... openat resumed>) = 3 [pid 5037] write(3, "1000", 4 [pid 5036] write(3, "1000", 4 [pid 5022] <... clone resumed>, child_tidptr=0x555556b75650) = 5040 ./strace-static-x86_64: Process 5038 attached [pid 5037] <... write resumed>) = 4 [pid 5036] <... write resumed>) = 4 ./strace-static-x86_64: Process 5040 attached [pid 5038] set_robust_list(0x555556b75660, 24 [pid 5037] close(3 [pid 5036] close(3 [pid 5034] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5039 attached [pid 5040] set_robust_list(0x555556b75660, 24 [pid 5038] <... set_robust_list resumed>) = 0 [pid 5037] <... close resumed>) = 0 [pid 5036] <... close resumed>) = 0 [pid 5034] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5040] <... set_robust_list resumed>) = 0 [pid 5039] set_robust_list(0x555556b75660, 24 [pid 5038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5037] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5036] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] <... openat resumed>) = 5 [pid 5040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5039] <... set_robust_list resumed>) = 0 [pid 5038] <... prctl resumed>) = 0 [pid 5037] <... openat resumed>) = 3 [pid 5036] <... openat resumed>) = 3 [pid 5034] chdir("./file1" [pid 5040] <... prctl resumed>) = 0 [pid 5039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5038] setpgid(0, 0 [pid 5037] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5036] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5034] <... chdir resumed>) = 0 [pid 5040] setpgid(0, 0 [pid 5039] <... prctl resumed>) = 0 [pid 5038] <... setpgid resumed>) = 0 [pid 5037] <... openat resumed>) = 4 [pid 5036] <... openat resumed>) = 4 [pid 5034] ioctl(6, LOOP_CLR_FD [pid 5040] <... setpgid resumed>) = 0 [pid 5039] setpgid(0, 0 [pid 5038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 54.434238][ T5034] ntfs: volume version 3.1. [pid 5037] sendfile(4, 3, [30] [pid 5036] sendfile(4, 3, [30] [pid 5034] <... ioctl resumed>) = 0 [pid 5040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... setpgid resumed>) = 0 [pid 5038] <... openat resumed>) = 3 [pid 5034] close(6 [pid 5039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5034] <... close resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5034] creat("./file1", 000 [pid 5039] write(3, "1000", 4 [pid 5040] <... openat resumed>) = 3 [pid 5039] <... write resumed>) = 4 [pid 5038] write(3, "1000", 4 [pid 5034] <... creat resumed>) = 6 [pid 5040] write(3, "1000", 4 [pid 5039] close(3 [pid 5038] <... write resumed>) = 4 [pid 5034] exit_group(0 [pid 5040] <... write resumed>) = 4 [pid 5039] <... close resumed>) = 0 [pid 5038] close(3 [pid 5034] <... exit_group resumed>) = ? [pid 5040] close(3 [pid 5039] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5038] <... close resumed>) = 0 [pid 5034] +++ exited with 0 +++ [pid 5040] <... close resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5038] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5040] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5039] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5024] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5034, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 s */} --- [pid 5039] <... openat resumed>) = 4 [pid 5039] sendfile(4, 3, [30] [pid 5038] <... openat resumed>) = 3 [pid 5040] <... openat resumed>) = 3 [pid 5040] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5038] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5040] <... openat resumed>) = 4 [pid 5038] <... openat resumed>) = 4 [pid 5040] sendfile(4, 3, [30] [pid 5038] sendfile(4, 3, [30] [pid 5024] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5024] ioctl(3, LOOP_CLR_FD) = 0 [pid 5024] close(3) = 0 [pid 5024] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b75650) = 5041 ./strace-static-x86_64: Process 5041 attached [pid 5041] set_robust_list(0x555556b75660, 24) = 0 [pid 5041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5041] setpgid(0, 0) = 0 [pid 5041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "1000", 4) = 4 [pid 5041] close(3) = 0 [pid 5041] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5041] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 55.012178][ T5036] syz-executor104 (5036): drop_caches: 1 [ 55.012605][ T5037] syz-executor104 (5037): drop_caches: 1 [ 55.054819][ T5040] syz-executor104 (5040): drop_caches: 1 [ 55.083192][ T5038] syz-executor104 (5038): drop_caches: 1 [ 55.140133][ T5041] syz-executor104 (5041): drop_caches: 1 [ 55.146743][ T5039] syz-executor104 (5039): drop_caches: 1 [pid 5041] sendfile(4, 3, [30] [pid 5040] <... sendfile resumed> => [640], 610) = 610 [pid 5040] memfd_create("syzkaller", 0) = 5 [pid 5040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [ 55.478975][ T5040] syz-executor104 (5040): drop_caches: 1 [pid 5038] <... sendfile resumed> => [640], 610) = 610 [pid 5038] memfd_create("syzkaller", 0 [pid 5040] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5038] <... memfd_create resumed>) = 5 [pid 5036] <... sendfile resumed> => [640], 610) = 610 [pid 5038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5036] memfd_create("syzkaller", 0) = 5 [pid 5036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5037] <... sendfile resumed> => [640], 610) = 610 [ 55.524476][ T5038] syz-executor104 (5038): drop_caches: 1 [ 55.527520][ T5036] syz-executor104 (5036): drop_caches: 1 [ 55.563249][ T5037] syz-executor104 (5037): drop_caches: 1 [pid 5040] <... write resumed>) = 2097152 [pid 5039] <... sendfile resumed> => [640], 610) = 610 [pid 5037] memfd_create("syzkaller", 0) = 5 [pid 5037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5040] munmap(0x7fa2269ec000, 2097152) = 0 [pid 5040] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5038] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5036] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5040] <... openat resumed>) = 6 [pid 5039] memfd_create("syzkaller", 0 [pid 5040] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5039] <... memfd_create resumed>) = 5 [pid 5040] ioctl(6, LOOP_CLR_FD [pid 5039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5040] <... ioctl resumed>) = 0 [pid 5039] <... mmap resumed>) = 0x7fa2269ec000 [pid 5037] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5036] <... write resumed>) = 2097152 [pid 5041] <... sendfile resumed> => [640], 610) = 610 [pid 5041] memfd_create("syzkaller", 0) = 5 [pid 5041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5040] ioctl(6, LOOP_SET_FD, 5 [pid 5036] munmap(0x7fa2269ec000, 2097152 [pid 5040] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5040] close(6) = 0 [ 55.596928][ T5039] syz-executor104 (5039): drop_caches: 1 [ 55.633324][ T5041] syz-executor104 (5041): drop_caches: 1 [pid 5040] close(5) = 0 [pid 5036] <... munmap resumed>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5036] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5036] ioctl(6, LOOP_CLR_FD) = 0 [pid 5036] ioctl(6, LOOP_SET_FD, 5 [pid 5040] creat("./file1", 000 [pid 5036] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5040] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5039] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5036] close(6 [pid 5040] exit_group(0) = ? [pid 5040] +++ exited with 0 +++ [pid 5036] <... close resumed>) = 0 [pid 5036] close(5 [pid 5022] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5040, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 s */} --- [pid 5038] <... write resumed>) = 2097152 [pid 5036] <... close resumed>) = 0 [pid 5037] <... write resumed>) = 2097152 [pid 5036] creat("./file1", 000 [pid 5037] munmap(0x7fa2269ec000, 2097152 [pid 5022] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5036] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5022] <... openat resumed>) = 3 [pid 5036] exit_group(0 [pid 5022] ioctl(3, LOOP_CLR_FD [pid 5036] <... exit_group resumed>) = ? [pid 5022] <... ioctl resumed>) = 0 [pid 5022] close(3) = 0 [pid 5022] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5037] <... munmap resumed>) = 0 [pid 5037] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5036] +++ exited with 0 +++ [pid 5022] <... clone resumed>, child_tidptr=0x555556b75650) = 5045 [pid 5025] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5036, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=27 /* 0.27 s */} --- [pid 5038] munmap(0x7fa2269ec000, 2097152 [pid 5037] <... openat resumed>) = 6 [pid 5038] <... munmap resumed>) = 0 [pid 5037] ioctl(6, LOOP_SET_FD, 5 [pid 5038] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5037] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5045 attached [pid 5041] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5039] <... write resumed>) = 2097152 [pid 5038] <... openat resumed>) = 6 [pid 5037] ioctl(6, LOOP_CLR_FD [pid 5045] set_robust_list(0x555556b75660, 24 [pid 5039] munmap(0x7fa2269ec000, 2097152 [pid 5038] ioctl(6, LOOP_SET_FD, 5 [pid 5037] <... ioctl resumed>) = 0 [pid 5025] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5045] <... set_robust_list resumed>) = 0 [pid 5039] <... munmap resumed>) = 0 [pid 5038] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5045] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5039] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5038] ioctl(6, LOOP_CLR_FD [pid 5025] <... openat resumed>) = 3 [pid 5045] <... prctl resumed>) = 0 [pid 5039] <... openat resumed>) = 6 [pid 5038] <... ioctl resumed>) = 0 [pid 5025] ioctl(3, LOOP_CLR_FD [pid 5045] setpgid(0, 0 [pid 5039] ioctl(6, LOOP_SET_FD, 5 [pid 5037] ioctl(6, LOOP_SET_FD, 5 [pid 5045] <... setpgid resumed>) = 0 [pid 5039] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5037] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5025] <... ioctl resumed>) = 0 [pid 5045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] ioctl(6, LOOP_CLR_FD [pid 5037] close(6 [pid 5025] close(3 [pid 5045] <... openat resumed>) = 3 [pid 5038] ioctl(6, LOOP_SET_FD, 5 [pid 5037] <... close resumed>) = 0 [pid 5025] <... close resumed>) = 0 [pid 5045] write(3, "1000", 4 [pid 5039] <... ioctl resumed>) = 0 [pid 5038] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5037] close(5 [pid 5025] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5045] <... write resumed>) = 4 [pid 5038] close(6) = 0 [pid 5045] close(3 [pid 5038] close(5 [pid 5025] <... clone resumed>, child_tidptr=0x555556b75650) = 5046 [pid 5045] <... close resumed>) = 0 [pid 5045] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5039] ioctl(6, LOOP_SET_FD, 5 [pid 5045] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5039] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5045] <... openat resumed>) = 4 [pid 5039] close(6 [pid 5045] sendfile(4, 3, [30] [pid 5039] <... close resumed>) = 0 ./strace-static-x86_64: Process 5046 attached [pid 5046] set_robust_list(0x555556b75660, 24) = 0 [pid 5046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5046] setpgid(0, 0) = 0 [pid 5046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] close(5 [pid 5046] write(3, "1000", 4 [pid 5038] <... close resumed>) = 0 [pid 5037] <... close resumed>) = 0 [pid 5046] <... write resumed>) = 4 [pid 5038] creat("./file1", 000 [pid 5037] creat("./file1", 000 [pid 5038] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5037] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5046] close(3) = 0 [pid 5039] <... close resumed>) = 0 [pid 5038] exit_group(0 [pid 5037] exit_group(0 [pid 5039] creat("./file1", 000 [pid 5038] <... exit_group resumed>) = ? [pid 5037] <... exit_group resumed>) = ? [pid 5046] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5039] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5038] +++ exited with 0 +++ [pid 5037] +++ exited with 0 +++ [pid 5046] <... openat resumed>) = 3 [pid 5039] exit_group(0 [pid 5027] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5038, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5026] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5037, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5046] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5039] <... exit_group resumed>) = ? [pid 5046] <... openat resumed>) = 4 [pid 5046] sendfile(4, 3, [30] [pid 5039] +++ exited with 0 +++ [pid 5041] <... write resumed>) = 2097152 [pid 5023] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5039, si_uid=0, si_status=0, si_utime=0, si_stime=36 /* 0.36 s */} --- [pid 5041] munmap(0x7fa2269ec000, 2097152 [pid 5026] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5026] ioctl(3, LOOP_CLR_FD) = 0 [pid 5026] close(3) = 0 [pid 5026] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5041] <... munmap resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5041] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5027] <... openat resumed>) = 3 [pid 5026] <... clone resumed>, child_tidptr=0x555556b75650) = 5047 [pid 5023] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5041] <... openat resumed>) = 6 [pid 5027] ioctl(3, LOOP_CLR_FD [pid 5023] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5047 attached [pid 5041] ioctl(6, LOOP_SET_FD, 5 [pid 5027] <... ioctl resumed>) = 0 [pid 5023] ioctl(3, LOOP_CLR_FD [pid 5047] set_robust_list(0x555556b75660, 24 [pid 5041] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5027] close(3 [pid 5023] <... ioctl resumed>) = 0 [pid 5047] <... set_robust_list resumed>) = 0 [pid 5041] ioctl(6, LOOP_CLR_FD [pid 5027] <... close resumed>) = 0 [pid 5023] close(3 [pid 5047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5041] <... ioctl resumed>) = 0 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5023] <... close resumed>) = 0 ./strace-static-x86_64: Process 5048 attached [pid 5047] <... prctl resumed>) = 0 [pid 5023] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] set_robust_list(0x555556b75660, 24 [pid 5047] setpgid(0, 0 [pid 5027] <... clone resumed>, child_tidptr=0x555556b75650) = 5048 [pid 5048] <... set_robust_list resumed>) = 0 [pid 5047] <... setpgid resumed>) = 0 [pid 5041] ioctl(6, LOOP_SET_FD, 5 [pid 5023] <... clone resumed>, child_tidptr=0x555556b75650) = 5049 [pid 5048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5041] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... prctl resumed>) = 0 [pid 5047] <... openat resumed>) = 3 [pid 5041] close(6 [pid 5048] setpgid(0, 0 [pid 5047] write(3, "1000", 4 [pid 5041] <... close resumed>) = 0 [pid 5048] <... setpgid resumed>) = 0 [pid 5047] <... write resumed>) = 4 [pid 5041] close(5 [pid 5048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5047] close(3) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5048] write(3, "1000", 4 [pid 5047] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5048] <... write resumed>) = 4 [pid 5047] <... openat resumed>) = 3 [pid 5048] close(3) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5048] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5047] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5047] sendfile(4, 3, [30] [pid 5048] <... openat resumed>) = 4 [pid 5048] sendfile(4, 3, [30] [pid 5041] <... close resumed>) = 0 ./strace-static-x86_64: Process 5049 attached [pid 5049] set_robust_list(0x555556b75660, 24) = 0 [pid 5049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5041] creat("./file1", 000 [pid 5049] setpgid(0, 0 [pid 5041] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5049] <... setpgid resumed>) = 0 [pid 5041] exit_group(0) = ? [pid 5049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "1000", 4) = 4 [pid 5041] +++ exited with 0 +++ [pid 5049] close(3) = 0 [pid 5024] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5041, si_uid=0, si_status=0, si_utime=0, si_stime=32 /* 0.32 s */} --- [pid 5049] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5024] restart_syscall(<... resuming interrupted clone ...> [pid 5049] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5024] <... restart_syscall resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5049] sendfile(4, 3, [30] [pid 5024] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5024] ioctl(3, LOOP_CLR_FD) = 0 [pid 5024] close(3) = 0 [pid 5024] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b75650) = 5050 ./strace-static-x86_64: Process 5050 attached [pid 5050] set_robust_list(0x555556b75660, 24) = 0 [pid 5050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] setpgid(0, 0) = 0 [pid 5050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1000", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5050] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 56.202383][ T5045] syz-executor104 (5045): drop_caches: 1 [ 56.396141][ T5048] syz-executor104 (5048): drop_caches: 1 [ 56.413078][ T5047] syz-executor104 (5047): drop_caches: 1 [ 56.417664][ T5046] syz-executor104 (5046): drop_caches: 1 [ 56.475935][ T5049] syz-executor104 (5049): drop_caches: 1 [ 56.495918][ T5050] syz-executor104 (5050): drop_caches: 1 [pid 5050] sendfile(4, 3, [30] [pid 5045] <... sendfile resumed> => [640], 610) = 610 [pid 5045] memfd_create("syzkaller", 0) = 5 [pid 5045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [ 56.709247][ T5045] syz-executor104 (5045): drop_caches: 1 [pid 5045] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5047] <... sendfile resumed> => [640], 610) = 610 [pid 5047] memfd_create("syzkaller", 0) = 5 [pid 5045] <... write resumed>) = 2097152 [pid 5047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5045] munmap(0x7fa2269ec000, 2097152 [pid 5047] <... mmap resumed>) = 0x7fa2269ec000 [pid 5045] <... munmap resumed>) = 0 [pid 5045] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5045] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [ 56.855177][ T5047] syz-executor104 (5047): drop_caches: 1 [pid 5045] ioctl(6, LOOP_CLR_FD) = 0 [pid 5046] <... sendfile resumed> => [640], 610) = 610 [pid 5046] memfd_create("syzkaller", 0 [pid 5045] ioctl(6, LOOP_SET_FD, 5 [pid 5046] <... memfd_create resumed>) = 5 [pid 5045] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5045] close(6) = 0 [pid 5046] <... mmap resumed>) = 0x7fa2269ec000 [pid 5045] close(5 [pid 5048] <... sendfile resumed> => [640], 610) = 610 [pid 5047] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5045] <... close resumed>) = 0 [pid 5048] memfd_create("syzkaller", 0 [pid 5045] creat("./file1", 000 [pid 5049] <... sendfile resumed> => [640], 610) = 610 [pid 5049] memfd_create("syzkaller", 0 [pid 5048] <... memfd_create resumed>) = 5 [pid 5045] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5045] exit_group(0 [pid 5048] <... mmap resumed>) = 0x7fa2269ec000 [pid 5045] <... exit_group resumed>) = ? [ 56.906129][ T5046] syz-executor104 (5046): drop_caches: 1 [ 56.918248][ T5048] syz-executor104 (5048): drop_caches: 1 [ 56.930378][ T5049] syz-executor104 (5049): drop_caches: 1 [pid 5049] <... memfd_create resumed>) = 5 [pid 5047] <... write resumed>) = 2097152 [pid 5046] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa2269ec000 [pid 5045] +++ exited with 0 +++ [pid 5022] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5045, si_uid=0, si_status=0, si_utime=0, si_stime=31 /* 0.31 s */} --- [pid 5047] munmap(0x7fa2269ec000, 2097152) = 0 [pid 5047] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5022] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5047] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5022] <... openat resumed>) = 3 [pid 5047] ioctl(6, LOOP_CLR_FD [pid 5022] ioctl(3, LOOP_CLR_FD) = 0 [pid 5047] <... ioctl resumed>) = 0 [pid 5022] close(3) = 0 [pid 5022] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b75650) = 5051 [pid 5047] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5047] close(6) = 0 [pid 5047] close(5./strace-static-x86_64: Process 5051 attached [pid 5051] set_robust_list(0x555556b75660, 24) = 0 [pid 5048] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5051] <... prctl resumed>) = 0 [pid 5051] setpgid(0, 0) = 0 [pid 5051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5051] write(3, "1000", 4) = 4 [pid 5050] <... sendfile resumed> => [640], 610) = 610 [pid 5051] close(3 [pid 5047] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5047] creat("./file1", 000 [pid 5051] <... openat resumed>) = 3 [pid 5050] memfd_create("syzkaller", 0 [pid 5046] <... write resumed>) = 2097152 [pid 5051] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5050] <... memfd_create resumed>) = 5 [pid 5047] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5046] munmap(0x7fa2269ec000, 2097152 [pid 5051] <... openat resumed>) = 4 [pid 5050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5047] exit_group(0 [pid 5051] sendfile(4, 3, [30] [pid 5050] <... mmap resumed>) = 0x7fa2269ec000 [pid 5047] <... exit_group resumed>) = ? [ 57.016363][ T5050] syz-executor104 (5050): drop_caches: 1 [pid 5047] +++ exited with 0 +++ [pid 5046] <... munmap resumed>) = 0 [pid 5046] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5046] ioctl(6, LOOP_SET_FD, 5 [pid 5026] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5047, si_uid=0, si_status=0, si_utime=0, si_stime=30 /* 0.30 s */} --- [pid 5046] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5026] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5046] ioctl(6, LOOP_CLR_FD [pid 5026] <... openat resumed>) = 3 [pid 5046] <... ioctl resumed>) = 0 [pid 5026] ioctl(3, LOOP_CLR_FD) = 0 [pid 5026] close(3 [pid 5048] <... write resumed>) = 2097152 [pid 5046] ioctl(6, LOOP_SET_FD, 5 [pid 5026] <... close resumed>) = 0 [pid 5048] munmap(0x7fa2269ec000, 2097152 [pid 5046] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5026] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5046] close(6) = 0 [pid 5046] close(5 [pid 5026] <... clone resumed>, child_tidptr=0x555556b75650) = 5052 ./strace-static-x86_64: Process 5052 attached [pid 5052] set_robust_list(0x555556b75660, 24) = 0 [pid 5052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5052] setpgid(0, 0 [pid 5048] <... munmap resumed>) = 0 [pid 5052] <... setpgid resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5052] write(3, "1000", 4 [pid 5048] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5046] <... close resumed>) = 0 [pid 5052] <... write resumed>) = 4 [pid 5050] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x04\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5049] <... write resumed>) = 2097152 [pid 5048] <... openat resumed>) = 6 [pid 5046] creat("./file1", 000 [pid 5052] close(3 [pid 5049] munmap(0x7fa2269ec000, 2097152 [pid 5048] ioctl(6, LOOP_SET_FD, 5 [pid 5046] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5052] <... close resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5046] exit_group(0 [pid 5052] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5048] ioctl(6, LOOP_CLR_FD [pid 5046] <... exit_group resumed>) = ? [pid 5052] <... openat resumed>) = 3 [pid 5049] <... munmap resumed>) = 0 [pid 5048] <... ioctl resumed>) = 0 [pid 5046] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5025] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5046, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5052] <... openat resumed>) = 4 [pid 5049] <... openat resumed>) = 6 [pid 5052] sendfile(4, 3, [30] [pid 5049] ioctl(6, LOOP_SET_FD, 5 [pid 5048] ioctl(6, LOOP_SET_FD, 5 [pid 5049] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] close(6 [pid 5049] ioctl(6, LOOP_CLR_FD [pid 5050] <... write resumed>) = 2097152 [pid 5048] <... close resumed>) = 0 [pid 5050] munmap(0x7fa2269ec000, 2097152 [pid 5049] <... ioctl resumed>) = 0 [pid 5048] close(5 [pid 5025] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5050] <... munmap resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5025] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 6 [pid 5049] ioctl(6, LOOP_SET_FD, 5 [pid 5025] ioctl(3, LOOP_CLR_FD [pid 5050] ioctl(6, LOOP_SET_FD, 5 [pid 5049] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5025] <... ioctl resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] close(6 [pid 5025] close(3 [pid 5050] ioctl(6, LOOP_CLR_FD [pid 5049] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = 0 [pid 5049] close(5 [pid 5048] <... close resumed>) = 0 [pid 5025] <... close resumed>) = 0 [pid 5048] creat("./file1", 000) = -1 EISDIR (Is a directory) [pid 5048] exit_group(0) = ? [pid 5048] +++ exited with 0 +++ [pid 5027] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5048, si_uid=0, si_status=0, si_utime=0, si_stime=29 /* 0.29 s */} --- [pid 5027] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5027] ioctl(3, LOOP_CLR_FD) = 0 [pid 5027] close(3) = 0 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5053 attached [pid 5049] <... close resumed>) = 0 [pid 5025] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] set_robust_list(0x555556b75660, 24 [pid 5050] ioctl(6, LOOP_SET_FD, 5 [pid 5049] creat("./file1", 000 [pid 5027] <... clone resumed>, child_tidptr=0x555556b75650) = 5053 [pid 5053] <... set_robust_list resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5025] <... clone resumed>, child_tidptr=0x555556b75650) = 5054 [pid 5053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] close(6 [pid 5049] exit_group(0 [pid 5053] <... prctl resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] <... exit_group resumed>) = ? [pid 5053] setpgid(0, 0 [pid 5050] close(5./strace-static-x86_64: Process 5054 attached [pid 5053] <... setpgid resumed>) = 0 [pid 5049] +++ exited with 0 +++ [pid 5054] set_robust_list(0x555556b75660, 24) = 0 [pid 5023] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5049, si_uid=0, si_status=0, si_utime=0, si_stime=30 /* 0.30 s */} --- [pid 5054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5023] restart_syscall(<... resuming interrupted clone ...> [pid 5054] <... prctl resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5023] <... restart_syscall resumed>) = 0 [pid 5054] setpgid(0, 0 [pid 5053] <... openat resumed>) = 3 [pid 5054] <... setpgid resumed>) = 0 [pid 5053] write(3, "1000", 4 [pid 5054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... write resumed>) = 4 [pid 5023] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5054] <... openat resumed>) = 3 [pid 5053] close(3 [pid 5023] <... openat resumed>) = 3 [pid 5054] write(3, "1000", 4 [pid 5053] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5023] ioctl(3, LOOP_CLR_FD [pid 5054] <... write resumed>) = 4 [pid 5053] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5050] creat("./file1", 000 [pid 5023] <... ioctl resumed>) = 0 [pid 5054] close(3 [pid 5053] <... openat resumed>) = 3 [pid 5050] <... creat resumed>) = -1 EISDIR (Is a directory) [pid 5023] close(3 [pid 5054] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5050] exit_group(0 [pid 5023] <... close resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5053] <... openat resumed>) = 4 [pid 5050] <... exit_group resumed>) = ? [pid 5023] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] <... openat resumed>) = 3 [pid 5053] sendfile(4, 3, [30] [pid 5050] +++ exited with 0 +++ [pid 5054] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5023] <... clone resumed>, child_tidptr=0x555556b75650) = 5055 [pid 5054] <... openat resumed>) = 4 [pid 5024] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5050, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5054] sendfile(4, 3, [30] [pid 5024] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5024] ioctl(3, LOOP_CLR_FD) = 0 [pid 5024] close(3) = 0 [pid 5024] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b75650) = 5056 ./strace-static-x86_64: Process 5055 attached [pid 5055] set_robust_list(0x555556b75660, 24./strace-static-x86_64: Process 5056 attached ) = 0 [pid 5056] set_robust_list(0x555556b75660, 24 [pid 5055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] <... set_robust_list resumed>) = 0 [pid 5055] <... prctl resumed>) = 0 [pid 5056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] setpgid(0, 0 [pid 5056] <... prctl resumed>) = 0 [pid 5055] <... setpgid resumed>) = 0 [pid 5056] setpgid(0, 0 [pid 5055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] <... setpgid resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] write(3, "1000", 4 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... write resumed>) = 4 [pid 5056] write(3, "1000", 4 [pid 5055] close(3 [pid 5056] <... write resumed>) = 4 [pid 5055] <... close resumed>) = 0 [pid 5056] close(3 [pid 5055] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5056] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5055] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 4 [pid 5056] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5055] sendfile(4, 3, [30] [pid 5056] <... openat resumed>) = 4 [ 57.444926][ T5051] syz-executor104 (5051): drop_caches: 1 [ 57.656099][ T5052] syz-executor104 (5052): drop_caches: 1 [ 57.745871][ T5053] syz-executor104 (5053): drop_caches: 1 [ 57.798637][ T5055] syz-executor104 (5055): drop_caches: 1 [ 57.869885][ T5056] syz-executor104 (5056): drop_caches: 1 [ 57.870444][ T5054] syz-executor104 (5054): drop_caches: 1 [pid 5056] sendfile(4, 3, [30]