./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2078755537 <...> Warning: Permanently added '10.128.1.142' (ED25519) to the list of known hosts. execve("./syz-executor2078755537", ["./syz-executor2078755537"], 0x7ffc1b4e99e0 /* 10 vars */) = 0 brk(NULL) = 0x555556beb000 brk(0x555556bebd00) = 0x555556bebd00 arch_prctl(ARCH_SET_FS, 0x555556beb380) = 0 set_tid_address(0x555556beb650) = 5064 set_robust_list(0x555556beb660, 24) = 0 rseq(0x555556bebca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2078755537", 4096) = 28 getrandom("\x87\xe3\x5d\xa6\x78\x67\xcd\x64", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556bebd00 brk(0x555556c0cd00) = 0x555556c0cd00 brk(0x555556c0d000) = 0x555556c0d000 mprotect(0x7f5e4a20f000, 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 5065 attached , child_tidptr=0x555556beb650) = 5065 [pid 5065] set_robust_list(0x555556beb660, 24) = 0 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5066 attached [pid 5064] <... clone resumed>, child_tidptr=0x555556beb650) = 5066 [pid 5065] <... openat resumed>) = 3 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] set_robust_list(0x555556beb660, 24 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5066] <... set_robust_list resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 ./strace-static-x86_64: Process 5067 attached [pid 5064] <... clone resumed>, child_tidptr=0x555556beb650) = 5067 [pid 5065] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5067] set_robust_list(0x555556beb660, 24 [pid 5065] close(3 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... set_robust_list resumed>) = 0 [pid 5066] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] <... close resumed>) = 0 ./strace-static-x86_64: Process 5068 attached [pid 5068] set_robust_list(0x555556beb660, 24) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] <... openat resumed>) = 3 [pid 5064] <... clone resumed>, child_tidptr=0x555556beb650) = 5068 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5069 attached [pid 5068] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3 [pid 5069] set_robust_list(0x555556beb660, 24 [pid 5067] <... close resumed>) = 0 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5066] close(3 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] close(3 [pid 5066] <... close resumed>) = 0 [pid 5064] <... clone resumed>, child_tidptr=0x555556beb650) = 5069 [pid 5068] <... close resumed>) = 0 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... openat resumed>) = 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5071 attached ./strace-static-x86_64: Process 5072 attached ./strace-static-x86_64: Process 5070 attached [pid 5071] set_robust_list(0x555556beb660, 24 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5071 [pid 5072] set_robust_list(0x555556beb660, 24 [pid 5071] <... set_robust_list resumed>) = 0 [pid 5070] set_robust_list(0x555556beb660, 24./strace-static-x86_64: Process 5074 attached ./strace-static-x86_64: Process 5073 attached [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... set_robust_list resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5070 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5072 [pid 5074] set_robust_list(0x555556beb660, 24 [pid 5073] set_robust_list(0x555556beb660, 24 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... prctl resumed>) = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] close(3 [pid 5064] <... clone resumed>, child_tidptr=0x555556beb650) = 5074 [pid 5074] <... set_robust_list resumed>) = 0 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5072] <... prctl resumed>) = 0 [pid 5071] setpgid(0, 0 [pid 5070] <... prctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5073 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] setpgid(0, 0 [pid 5071] <... setpgid resumed>) = 0 [pid 5070] setpgid(0, 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... prctl resumed>) = 0 [pid 5072] <... setpgid resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5076 attached [pid 5074] <... openat resumed>) = 3 [pid 5073] setpgid(0, 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] set_robust_list(0x555556beb660, 24 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5070] <... openat resumed>) = 3 [pid 5076] <... set_robust_list resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... setpgid resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] write(3, "1000", 4 [pid 5070] write(3, "1000", 4 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5076 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] close(3 [pid 5072] write(3, "1000", 4 [pid 5071] <... write resumed>) = 4 [pid 5070] <... write resumed>) = 4 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... prctl resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5072] <... write resumed>) = 4 [pid 5071] close(3 [pid 5070] close(3 [pid 5076] setpgid(0, 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5071] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 ./strace-static-x86_64: Process 5077 attached [pid 5076] <... setpgid resumed>) = 0 [pid 5077] set_robust_list(0x555556beb660, 24 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5077] <... set_robust_list resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5070] <... openat resumed>) = 3 [pid 5072] <... close resumed>) = 0 [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] write(3, "1000", 4 [pid 5071] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5077] <... prctl resumed>) = 0 [pid 5076] write(3, "1000", 4 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5077 [pid 5073] <... write resumed>) = 4 [pid 5072] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5077] setpgid(0, 0 [pid 5076] <... write resumed>) = 4 [pid 5073] close(3 [pid 5071] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5072] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 4 [pid 5077] <... setpgid resumed>) = 0 [pid 5076] close(3 [pid 5073] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5071] <... openat resumed>) = 4 [pid 5070] sendfile(4, 3, [118] [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5073] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5072] <... openat resumed>) = 4 [pid 5077] write(3, "1000", 4 [pid 5076] <... openat resumed>) = 3 [pid 5077] <... write resumed>) = 4 [pid 5076] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5072] sendfile(4, 3, [118] [pid 5077] close(3 [pid 5073] <... openat resumed>) = 3 [pid 5071] sendfile(4, 3, [118] [pid 5077] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5073] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5077] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5076] sendfile(4, 3, [118] [pid 5073] <... openat resumed>) = 4 [pid 5077] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5073] sendfile(4, 3, [118] [ 56.369467][ T5077] syz-executor207 (5077): drop_caches: 1 [ 56.396714][ T5076] syz-executor207 (5076): drop_caches: 1 [ 56.406492][ T5070] syz-executor207 (5070): drop_caches: 1 [ 56.412664][ T5073] syz-executor207 (5073): drop_caches: 1 [ 56.416955][ T5072] syz-executor207 (5072): drop_caches: 1 [ 56.425038][ T5071] syz-executor207 (5071): drop_caches: 1 [pid 5077] sendfile(4, 3, [118] => [640], 553) = 522 [pid 5076] <... sendfile resumed> => [640], 553) = 522 [pid 5073] <... sendfile resumed> => [640], 553) = 522 [pid 5072] <... sendfile resumed> => [640], 553) = 522 [pid 5070] <... sendfile resumed> => [640], 553) = 522 [pid 5077] memfd_create("syzkaller", 0 [pid 5076] memfd_create("syzkaller", 0 [pid 5073] memfd_create("syzkaller", 0 [pid 5071] <... sendfile resumed> => [640], 553) = 522 [pid 5077] <... memfd_create resumed>) = 5 [pid 5076] <... memfd_create resumed>) = 5 [pid 5073] <... memfd_create resumed>) = 5 [pid 5071] memfd_create("syzkaller", 0 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5071] <... memfd_create resumed>) = 5 [pid 5077] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5076] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5072] memfd_create("syzkaller", 0 [pid 5070] memfd_create("syzkaller", 0 [pid 5073] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5072] <... memfd_create resumed>) = 5 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... memfd_create resumed>) = 5 [ 56.595559][ T5077] syz-executor207 (5077): drop_caches: 1 [ 56.609532][ T5070] syz-executor207 (5070): drop_caches: 1 [ 56.610438][ T5076] syz-executor207 (5076): drop_caches: 1 [ 56.621369][ T5073] syz-executor207 (5073): drop_caches: 1 [ 56.631718][ T5072] syz-executor207 (5072): drop_caches: 1 [ 56.632957][ T5071] syz-executor207 (5071): drop_caches: 1 [pid 5077] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5070] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5076] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5070] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5072] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5073] <... write resumed>) = 2097152 [pid 5073] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5071] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5076] <... write resumed>) = 2097152 [pid 5073] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5073] ioctl(6, LOOP_SET_FD, 5 [pid 5077] <... write resumed>) = 2097152 [pid 5073] <... ioctl resumed>) = 0 [pid 5077] munmap(0x7f5e41d3e000, 138412032 [pid 5076] munmap(0x7f5e41d3e000, 138412032 [pid 5077] <... munmap resumed>) = 0 [pid 5076] <... munmap resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5076] ioctl(6, LOOP_SET_FD, 5 [pid 5077] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5077] ioctl(6, LOOP_SET_FD, 5 [pid 5073] close(5) = 0 [pid 5073] mkdir("./file0", 0777 [pid 5072] <... write resumed>) = 2097152 [pid 5070] <... write resumed>) = 2097152 [pid 5076] <... ioctl resumed>) = 0 [pid 5077] <... ioctl resumed>) = 0 [pid 5072] munmap(0x7f5e41d3e000, 138412032 [pid 5071] <... write resumed>) = 2097152 [pid 5070] munmap(0x7f5e41d3e000, 138412032 [pid 5077] close(5 [pid 5076] close(5 [pid 5077] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5071] munmap(0x7f5e41d3e000, 138412032 [pid 5076] mkdir("./file0", 0777 [pid 5077] mkdir("./file0", 0777 [pid 5070] <... munmap resumed>) = 0 [pid 5077] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5076] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5073] <... mkdir resumed>) = 0 [pid 5072] <... munmap resumed>) = 0 [pid 5071] <... munmap resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] mount("/dev/loop5", "./file0", "ntfs", MS_NODIRATIME|MS_REC, "case_sensitive=no,mft_zone_multiplier=0xffffffffffffffff,errors=continue,fmask=000000000000000000000"... [pid 5076] mount("/dev/loop4", "./file0", "ntfs", MS_NODIRATIME|MS_REC, "case_sensitive=no,mft_zone_multiplier=0xffffffffffffffff,errors=continue,fmask=000000000000000000000"... [pid 5071] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] mount("/dev/loop3", "./file0", "ntfs", MS_NODIRATIME|MS_REC, "case_sensitive=no,mft_zone_multiplier=0xffffffffffffffff,errors=continue,fmask=000000000000000000000"... [pid 5072] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] <... openat resumed>) = 6 [pid 5070] <... openat resumed>) = 6 [ 56.781306][ T5073] loop3: detected capacity change from 0 to 4096 [ 56.802694][ T5076] loop4: detected capacity change from 0 to 4096 [ 56.813259][ T5077] loop5: detected capacity change from 0 to 4096 [pid 5071] ioctl(6, LOOP_SET_FD, 5 [pid 5072] <... openat resumed>) = 6 [pid 5070] ioctl(6, LOOP_SET_FD, 5 [pid 5072] ioctl(6, LOOP_SET_FD, 5) = 0 [pid 5071] <... ioctl resumed>) = 0 [pid 5071] close(5) = 0 [pid 5071] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5071] mount("/dev/loop0", "./file0", "ntfs", MS_NODIRATIME|MS_REC, "case_sensitive=no,mft_zone_multiplier=0xffffffffffffffff,errors=continue,fmask=000000000000000000000"... [pid 5072] close(5) = 0 [pid 5072] mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 56.847696][ T5071] loop0: detected capacity change from 0 to 4096 [ 56.848896][ T5070] loop2: detected capacity change from 0 to 4096 [ 56.862143][ T5072] loop1: detected capacity change from 0 to 4096 [ 56.879690][ T5077] ntfs: volume version 3.1. [pid 5072] mount("/dev/loop1", "./file0", "ntfs", MS_NODIRATIME|MS_REC, "case_sensitive=no,mft_zone_multiplier=0xffffffffffffffff,errors=continue,fmask=000000000000000000000"... [pid 5070] <... ioctl resumed>) = 0 [pid 5077] <... mount resumed>) = 0 [pid 5070] close(5 [pid 5077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 5070] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5077] <... openat resumed>) = 5 [pid 5070] mount("/dev/loop2", "./file0", "ntfs", MS_NODIRATIME|MS_REC, "case_sensitive=no,mft_zone_multiplier=0xffffffffffffffff,errors=continue,fmask=000000000000000000000"... [pid 5077] chdir("./file0") = 0 [pid 5077] ioctl(6, LOOP_CLR_FD) = 0 [pid 5077] close(6) = 0 [pid 5077] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5073] <... mount resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5073] chdir("./file0") = 0 [pid 5073] ioctl(6, LOOP_CLR_FD) = 0 [pid 5073] close(6 [pid 5077] <... openat resumed>) = 6 [pid 5076] <... mount resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] <... mount resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [ 56.897038][ T5076] ntfs: volume version 3.1. [ 56.897941][ T5073] ntfs: volume version 3.1. [ 56.915103][ T5071] ntfs: volume version 3.1. [pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... openat resumed>) = 6 [pid 5071] <... openat resumed>) = 5 [pid 5077] write(6, "t", 1 [pid 5076] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] write(6, "t", 1 [pid 5071] chdir("./file0" [pid 5076] <... openat resumed>) = 5 [pid 5072] <... mount resumed>) = 0 [pid 5071] <... chdir resumed>) = 0 [pid 5071] ioctl(6, LOOP_CLR_FD) = 0 [pid 5072] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] close(6 [pid 5072] <... openat resumed>) = 5 [pid 5076] chdir("./file0") = 0 [pid 5071] <... close resumed>) = 0 [pid 5076] ioctl(6, LOOP_CLR_FD) = 0 [pid 5072] chdir("./file0" [pid 5071] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5076] close(6 [pid 5072] <... chdir resumed>) = 0 [pid 5072] ioctl(6, LOOP_CLR_FD [pid 5076] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5072] <... ioctl resumed>) = 0 [pid 5072] close(6) = 0 [ 56.941209][ T5073] ntfs: (device loop3): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x0 because its location on disk could not be determined even after retrying (error code -5). [ 56.942755][ T5072] ntfs: volume version 3.1. [ 56.961632][ T5077] ntfs: (device loop5): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x0 because its location on disk could not be determined even after retrying (error code -5). [pid 5076] <... openat resumed>) = 6 [pid 5072] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5071] <... openat resumed>) = 6 [pid 5076] write(6, "t", 1 [pid 5072] <... openat resumed>) = 6 [pid 5072] write(6, "t", 1 [ 57.011295][ T5073] ntfs: (device loop3): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x800 because its location on disk could not be determined even after retrying (error code -5). [ 57.012761][ T5071] ntfs: (device loop0): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x0 because its location on disk could not be determined even after retrying (error code -5). [ 57.032066][ T5076] ntfs: (device loop1): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x0 because its location on disk could not be determined even after retrying (error code -5). [ 57.061777][ T5071] ntfs: (device loop0): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x800 because its location on disk could not be determined even after retrying (error code -5). [ 57.084975][ T5077] ntfs: (device loop5): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x800 because its location on disk could not be determined even after retrying (error code -5). [pid 5071] write(6, "t", 1 [pid 5070] <... mount resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5070] chdir("./file0") = 0 [pid 5070] ioctl(6, LOOP_CLR_FD) = 0 [pid 5070] close(6) = 0 [pid 5070] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 6 [ 57.095347][ T5070] ntfs: volume version 3.1. [ 57.128221][ T5076] ntfs: (device loop1): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x800 because its location on disk could not be determined even after retrying (error code -5). [pid 5070] write(6, "t", 1 [pid 5071] <... write resumed>) = -1 EIO (Input/output error) [pid 5071] exit_group(0) = ? [pid 5071] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=27 /* 0.27 s */} --- [pid 5073] <... write resumed>) = -1 EIO (Input/output error) [pid 5077] <... write resumed>) = -1 EIO (Input/output error) [pid 5077] exit_group(0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5077] <... exit_group resumed>) = ? [pid 5065] <... openat resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3 [pid 5073] exit_group(0 [pid 5065] <... close resumed>) = 0 [pid 5073] <... exit_group resumed>) = ? [pid 5077] +++ exited with 0 +++ [pid 5073] +++ exited with 0 +++ [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- ./strace-static-x86_64: Process 5080 attached [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5080 [pid 5080] set_robust_list(0x555556beb660, 24 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] <... ioctl resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5068] close(3 [pid 5074] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] <... close resumed>) = 0 [pid 5074] close(3) = 0 [ 57.165630][ T5073] ntfs: (device loop3): ntfs_cluster_alloc(): Failed to map page. [ 57.165895][ T5070] ntfs: (device loop2): ntfs_read_block(): Failed to read from inode 0x6, attribute type 0x80, vcn 0x0, offset 0x0 because its location on disk could not be determined even after retrying (error code -5). [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached [pid 5080] <... set_robust_list resumed>) = 0 [pid 5070] <... write resumed>) = -1 EIO (Input/output error) [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] set_robust_list(0x555556beb660, 24) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5083 ./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x555556beb660, 24 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5081 [pid 5070] exit_group(0 [pid 5083] <... set_robust_list resumed>) = 0 [pid 5081] <... prctl resumed>) = 0 [pid 5080] <... prctl resumed>) = 0 [pid 5070] <... exit_group resumed>) = ? [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] setpgid(0, 0 [pid 5080] setpgid(0, 0 [pid 5070] +++ exited with 0 +++ [pid 5083] <... prctl resumed>) = 0 [pid 5081] <... setpgid resumed>) = 0 [pid 5080] <... setpgid resumed>) = 0 [pid 5072] <... write resumed>) = -1 EIO (Input/output error) [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [pid 5083] setpgid(0, 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] exit_group(0 [pid 5083] <... setpgid resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... write resumed>) = -1 EIO (Input/output error) [pid 5072] <... exit_group resumed>) = ? [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] write(3, "1000", 4 [pid 5080] <... openat resumed>) = 3 [pid 5076] exit_group(0 [pid 5072] +++ exited with 0 +++ [pid 5083] <... openat resumed>) = 3 [pid 5081] <... write resumed>) = 4 [pid 5080] write(3, "1000", 4 [pid 5076] <... exit_group resumed>) = ? [pid 5083] write(3, "1000", 4 [pid 5081] close(3 [pid 5080] <... write resumed>) = 4 [pid 5076] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5083] <... write resumed>) = 4 [pid 5081] <... close resumed>) = 0 [pid 5080] close(3 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5083] close(3 [pid 5081] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5080] <... close resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5067] <... openat resumed>) = 3 [pid 5066] <... restart_syscall resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5081] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5080] <... openat resumed>) = 3 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5080] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] close(3 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5081] <... openat resumed>) = 4 [pid 5083] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5080] <... openat resumed>) = 4 [pid 5081] sendfile(4, 3, [118] [pid 5067] <... close resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5084 attached [pid 5083] sendfile(4, 3, [118] [pid 5069] <... openat resumed>) = 3 [pid 5080] sendfile(4, 3, [118] [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5084] set_robust_list(0x555556beb660, 24 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5084 [pid 5069] <... ioctl resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5069] close(3) = 0 [pid 5066] close(3 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... close resumed>) = 0 [pid 5084] <... prctl resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5084] setpgid(0, 0./strace-static-x86_64: Process 5085 attached ) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5085 ./strace-static-x86_64: Process 5086 attached [pid 5085] set_robust_list(0x555556beb660, 24 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5086 [pid 5086] set_robust_list(0x555556beb660, 24 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] <... prctl resumed>) = 0 [pid 5085] setpgid(0, 0) = 0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] <... prctl resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5086] setpgid(0, 0 [pid 5085] write(3, "1000", 4 [pid 5086] <... setpgid resumed>) = 0 [pid 5085] <... write resumed>) = 4 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5085] close(3 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] <... openat resumed>) = 3 [pid 5085] <... close resumed>) = 0 [pid 5086] write(3, "1000", 4 [pid 5085] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5086] <... write resumed>) = 4 [pid 5085] <... openat resumed>) = 3 [pid 5084] <... openat resumed>) = 3 [pid 5086] close(3 [pid 5085] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5084] write(3, "1000", 4 [pid 5086] <... close resumed>) = 0 [pid 5085] <... openat resumed>) = 4 [pid 5086] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5085] sendfile(4, 3, [118] [pid 5084] <... write resumed>) = 4 [pid 5086] <... openat resumed>) = 3 [pid 5086] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5086] sendfile(4, 3, [118] [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5084] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 57.602471][ T5081] syz-executor207 (5081): drop_caches: 1 [ 57.610715][ T5083] syz-executor207 (5083): drop_caches: 1 [ 57.617663][ T5080] syz-executor207 (5080): drop_caches: 1 [ 57.644329][ T5085] syz-executor207 (5085): drop_caches: 1 [ 57.651109][ T5086] syz-executor207 (5086): drop_caches: 1 [ 57.685043][ T5084] syz-executor207 (5084): drop_caches: 1 [pid 5084] sendfile(4, 3, [118] [pid 5083] <... sendfile resumed> => [671], 553) = 553 [pid 5081] <... sendfile resumed> => [671], 553) = 553 [pid 5080] <... sendfile resumed> => [671], 553) = 553 [pid 5081] memfd_create("syzkaller", 0) = 5 [pid 5080] memfd_create("syzkaller", 0 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5080] <... memfd_create resumed>) = 5 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 57.846837][ T5080] syz-executor207 (5080): drop_caches: 1 [ 57.854948][ T5081] syz-executor207 (5081): drop_caches: 1 [ 57.864738][ T5083] syz-executor207 (5083): drop_caches: 1 [pid 5083] memfd_create("syzkaller", 0) = 5 [pid 5085] <... sendfile resumed> => [671], 553) = 553 [pid 5085] memfd_create("syzkaller", 0 [pid 5086] <... sendfile resumed> => [671], 553) = 553 [pid 5086] memfd_create("syzkaller", 0 [pid 5085] <... memfd_create resumed>) = 5 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5086] <... memfd_create resumed>) = 5 [pid 5085] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5081] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 57.894833][ T5085] syz-executor207 (5085): drop_caches: 1 [ 57.903804][ T5086] syz-executor207 (5086): drop_caches: 1 [pid 5080] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5084] <... sendfile resumed> => [671], 553) = 553 [pid 5083] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5085] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5081] <... write resumed>) = 2097152 [pid 5086] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5084] memfd_create("syzkaller", 0 [pid 5081] munmap(0x7f5e41d3e000, 138412032 [pid 5084] <... memfd_create resumed>) = 5 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5081] <... munmap resumed>) = 0 [pid 5083] <... write resumed>) = 2097152 [pid 5081] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5080] <... write resumed>) = 2097152 [pid 5081] <... openat resumed>) = 6 [ 57.952528][ T5084] syz-executor207 (5084): drop_caches: 1 [pid 5080] munmap(0x7f5e41d3e000, 138412032 [pid 5085] <... write resumed>) = 2097152 [pid 5083] munmap(0x7f5e41d3e000, 138412032 [pid 5081] ioctl(6, LOOP_SET_FD, 5 [pid 5080] <... munmap resumed>) = 0 [pid 5085] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5081] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] ioctl(6, LOOP_CLR_FD) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5080] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5083] <... munmap resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5080] ioctl(6, LOOP_CLR_FD [pid 5083] <... openat resumed>) = 6 [pid 5081] ioctl(6, LOOP_SET_FD, 5 [pid 5080] <... ioctl resumed>) = 0 [pid 5086] <... write resumed>) = 2097152 [pid 5085] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5083] ioctl(6, LOOP_SET_FD, 5 [pid 5081] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5086] munmap(0x7f5e41d3e000, 138412032 [pid 5085] <... openat resumed>) = 6 [pid 5083] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] close(6) = 0 [pid 5081] close(5 [pid 5084] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5086] <... munmap resumed>) = 0 [pid 5085] ioctl(6, LOOP_SET_FD, 5 [pid 5083] ioctl(6, LOOP_CLR_FD [pid 5081] <... close resumed>) = 0 [pid 5080] ioctl(6, LOOP_SET_FD, 5 [pid 5085] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... ioctl resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5080] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5085] ioctl(6, LOOP_CLR_FD [pid 5081] <... openat resumed>) = 5 [pid 5080] close(6 [pid 5086] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5085] <... ioctl resumed>) = 0 [pid 5081] write(5, "t", 1 [pid 5080] <... close resumed>) = 0 [pid 5086] <... openat resumed>) = 6 [pid 5080] close(5 [pid 5086] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5086] ioctl(6, LOOP_CLR_FD) = 0 [pid 5086] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5086] close(6) = 0 [pid 5086] close(5 [pid 5083] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5083] close(6) = 0 [pid 5083] close(5 [pid 5085] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5085] close(6) = 0 [pid 5085] close(5 [pid 5084] <... write resumed>) = 2097152 [pid 5083] <... close resumed>) = 0 [pid 5081] <... write resumed>) = 1 [pid 5081] exit_group(0) = ? [pid 5080] <... close resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5084] munmap(0x7f5e41d3e000, 138412032 [pid 5083] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5081] +++ exited with 0 +++ [pid 5080] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5080] write(5, "t", 1 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5083] <... openat resumed>) = 5 [pid 5083] write(5, "t", 1 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5085] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5084] <... munmap resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5085] <... openat resumed>) = 5 [pid 5085] write(5, "t", 1 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5080] <... write resumed>) = 1 [pid 5074] <... ioctl resumed>) = 0 [pid 5074] close(3 [pid 5080] exit_group(0 [pid 5074] <... close resumed>) = 0 [pid 5080] <... exit_group resumed>) = ? [pid 5080] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5083] <... write resumed>) = 1 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5084] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5083] exit_group(0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... openat resumed>) = 3 [pid 5084] <... openat resumed>) = 6 [pid 5083] <... exit_group resumed>) = ? [pid 5083] +++ exited with 0 +++ [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5065] <... ioctl resumed>) = 0 [pid 5065] close(3./strace-static-x86_64: Process 5087 attached [pid 5084] ioctl(6, LOOP_SET_FD, 5 [pid 5087] set_robust_list(0x555556beb660, 24 [pid 5084] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] <... close resumed>) = 0 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5084] ioctl(6, LOOP_CLR_FD [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] <... ioctl resumed>) = 0 [pid 5087] <... prctl resumed>) = 0 [pid 5087] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5088 attached [pid 5086] <... close resumed>) = 0 [pid 5085] <... write resumed>) = 1 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5087 [pid 5068] <... openat resumed>) = 3 [pid 5088] set_robust_list(0x555556beb660, 24 [pid 5086] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5085] exit_group(0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5088] <... set_robust_list resumed>) = 0 [pid 5086] <... openat resumed>) = 5 [pid 5085] <... exit_group resumed>) = ? [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5088 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] write(5, "t", 1 [pid 5085] +++ exited with 0 +++ [pid 5068] <... ioctl resumed>) = 0 [pid 5088] <... prctl resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5084] ioctl(6, LOOP_SET_FD, 5 [pid 5088] setpgid(0, 0 [pid 5087] write(3, "1000", 4 [pid 5084] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] close(3 [pid 5088] <... setpgid resumed>) = 0 [pid 5087] <... write resumed>) = 4 [pid 5084] close(6 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] close(3 [pid 5084] <... close resumed>) = 0 [pid 5088] <... openat resumed>) = 3 [pid 5087] <... close resumed>) = 0 [pid 5084] close(5 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5068] <... close resumed>) = 0 [pid 5088] write(3, "1000", 4 [pid 5087] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5086] <... write resumed>) = 1 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... write resumed>) = 4 [pid 5086] exit_group(0./strace-static-x86_64: Process 5089 attached [pid 5088] close(3 [pid 5087] <... openat resumed>) = 3 [pid 5086] <... exit_group resumed>) = ? [pid 5069] <... restart_syscall resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5087] sendfile(4, 3, [118] [pid 5089] set_robust_list(0x555556beb660, 24 [pid 5088] <... close resumed>) = 0 [pid 5086] +++ exited with 0 +++ [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5089 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5089] <... prctl resumed>) = 0 [pid 5089] setpgid(0, 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5089] <... setpgid resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] <... openat resumed>) = 3 [pid 5089] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5089] write(3, "1000", 4 [pid 5066] <... ioctl resumed>) = 0 [pid 5089] <... write resumed>) = 4 [pid 5088] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5066] close(3 [pid 5089] close(3 [pid 5088] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5066] <... close resumed>) = 0 [pid 5089] <... close resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5090 attached [pid 5089] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5088] <... openat resumed>) = 4 [pid 5069] close(3 [pid 5090] set_robust_list(0x555556beb660, 24 [pid 5069] <... close resumed>) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5090 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5089] <... openat resumed>) = 3 [pid 5088] sendfile(4, 3, [118] [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5091 attached [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5090] <... prctl resumed>) = 0 [pid 5091] set_robust_list(0x555556beb660, 24 [pid 5090] setpgid(0, 0 [pid 5089] <... openat resumed>) = 4 [pid 5084] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5091 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5090] <... setpgid resumed>) = 0 [pid 5089] sendfile(4, 3, [118] [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5091] <... prctl resumed>) = 0 [pid 5090] <... openat resumed>) = 3 [pid 5084] <... openat resumed>) = 5 [pid 5091] setpgid(0, 0 [pid 5084] write(5, "t", 1 [pid 5091] <... setpgid resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] write(3, "1000", 4) = 4 [pid 5084] <... write resumed>) = 1 [pid 5091] <... openat resumed>) = 3 [pid 5084] exit_group(0) = ? [pid 5091] write(3, "1000", 4 [pid 5084] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5090] close(3 [pid 5091] <... write resumed>) = 4 [pid 5090] <... close resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5090] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5091] close(3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5090] <... openat resumed>) = 3 [pid 5067] <... ioctl resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached [pid 5091] <... close resumed>) = 0 [pid 5090] <... openat resumed>) = 4 [pid 5092] set_robust_list(0x555556beb660, 24) = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5092 [pid 5091] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5090] sendfile(4, 3, [118] [pid 5091] <... openat resumed>) = 3 [pid 5092] <... openat resumed>) = 3 [pid 5091] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5092] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5092] sendfile(4, 3, [118] [pid 5091] <... openat resumed>) = 4 [ 58.449022][ T5087] syz-executor207 (5087): drop_caches: 1 [ 58.522004][ T5088] syz-executor207 (5088): drop_caches: 1 [ 58.526940][ T5089] syz-executor207 (5089): drop_caches: 1 [ 58.629050][ T5090] syz-executor207 (5090): drop_caches: 1 [ 58.648419][ T5092] syz-executor207 (5092): drop_caches: 1 [ 58.675619][ T5091] syz-executor207 (5091): drop_caches: 1 [pid 5091] sendfile(4, 3, [118] [pid 5088] <... sendfile resumed> => [671], 553) = 553 [ 58.856963][ T5088] syz-executor207 (5088): drop_caches: 1 [ 58.876653][ T5087] syz-executor207 (5087): drop_caches: 1 [pid 5087] <... sendfile resumed> => [671], 553) = 553 [pid 5088] memfd_create("syzkaller", 0) = 5 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] memfd_create("syzkaller", 0 [pid 5088] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5087] <... memfd_create resumed>) = 5 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5091] <... sendfile resumed> => [671], 553) = 553 [pid 5089] <... sendfile resumed> => [671], 553) = 553 [pid 5090] <... sendfile resumed> => [671], 553) = 553 [pid 5089] memfd_create("syzkaller", 0) = 5 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5090] memfd_create("syzkaller", 0) = 5 [pid 5091] memfd_create("syzkaller", 0 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5087] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5091] <... memfd_create resumed>) = 5 [ 58.909316][ T5089] syz-executor207 (5089): drop_caches: 1 [ 58.934218][ T5090] syz-executor207 (5090): drop_caches: 1 [ 58.941987][ T5091] syz-executor207 (5091): drop_caches: 1 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5092] <... sendfile resumed> => [671], 553) = 553 [pid 5092] memfd_create("syzkaller", 0) = 5 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5090] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5087] <... write resumed>) = 2097152 [pid 5092] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5089] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5087] munmap(0x7f5e41d3e000, 138412032 [pid 5088] <... write resumed>) = 2097152 [ 58.972896][ T5092] syz-executor207 (5092): drop_caches: 1 [pid 5087] <... munmap resumed>) = 0 [pid 5091] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5090] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5088] munmap(0x7f5e41d3e000, 138412032 [pid 5087] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5089] <... write resumed>) = 2097152 [pid 5087] <... openat resumed>) = 6 [pid 5087] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5087] ioctl(6, LOOP_CLR_FD) = 0 [pid 5089] munmap(0x7f5e41d3e000, 138412032 [pid 5088] <... munmap resumed>) = 0 [pid 5087] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5087] close(6 [pid 5092] <... write resumed>) = 2097152 [pid 5091] <... write resumed>) = 2097152 [pid 5089] <... munmap resumed>) = 0 [pid 5087] <... close resumed>) = 0 [pid 5091] munmap(0x7f5e41d3e000, 138412032 [pid 5089] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5087] close(5 [pid 5091] <... munmap resumed>) = 0 [pid 5089] ioctl(6, LOOP_SET_FD, 5 [pid 5092] munmap(0x7f5e41d3e000, 138412032 [pid 5091] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] <... write resumed>) = 2097152 [pid 5089] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = 6 [pid 5091] <... openat resumed>) = 6 [pid 5092] <... munmap resumed>) = 0 [pid 5091] ioctl(6, LOOP_SET_FD, 5 [pid 5090] munmap(0x7f5e41d3e000, 138412032 [pid 5089] ioctl(6, LOOP_CLR_FD [pid 5088] ioctl(6, LOOP_SET_FD, 5 [pid 5087] <... close resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5091] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] <... munmap resumed>) = 0 [pid 5089] <... ioctl resumed>) = 0 [pid 5088] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5092] <... openat resumed>) = 6 [pid 5091] ioctl(6, LOOP_CLR_FD [pid 5090] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5088] ioctl(6, LOOP_CLR_FD [pid 5092] ioctl(6, LOOP_SET_FD, 5 [pid 5091] <... ioctl resumed>) = 0 [pid 5090] <... openat resumed>) = 6 [pid 5088] <... ioctl resumed>) = 0 [pid 5092] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] ioctl(6, LOOP_SET_FD, 5 [pid 5092] ioctl(6, LOOP_CLR_FD) = 0 [pid 5090] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = 5 [pid 5090] ioctl(6, LOOP_CLR_FD [pid 5089] ioctl(6, LOOP_SET_FD, 5 [pid 5090] <... ioctl resumed>) = 0 [pid 5087] write(5, "t", 1 [pid 5089] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] ioctl(6, LOOP_SET_FD, 5 [pid 5091] ioctl(6, LOOP_SET_FD, 5 [pid 5089] close(6 [pid 5088] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] ioctl(6, LOOP_SET_FD, 5 [pid 5089] <... close resumed>) = 0 [pid 5088] close(6 [pid 5092] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... close resumed>) = 0 [pid 5089] close(5 [pid 5088] close(5 [pid 5092] close(6 [pid 5091] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] ioctl(6, LOOP_SET_FD, 5 [pid 5088] <... close resumed>) = 0 [pid 5092] <... close resumed>) = 0 [pid 5092] close(5 [pid 5091] close(6 [pid 5090] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] <... close resumed>) = 0 [pid 5088] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5091] <... close resumed>) = 0 [pid 5090] close(6) = 0 [pid 5090] close(5 [pid 5091] close(5 [pid 5088] <... openat resumed>) = 5 [pid 5088] write(5, "t", 1 [pid 5091] <... close resumed>) = 0 [pid 5090] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5087] <... write resumed>) = 1 [pid 5087] exit_group(0) = ? [pid 5089] <... openat resumed>) = 5 [pid 5087] +++ exited with 0 +++ [pid 5089] write(5, "t", 1 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5091] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5092] <... close resumed>) = 0 [pid 5091] <... openat resumed>) = 5 [pid 5088] <... write resumed>) = 1 [pid 5091] write(5, "t", 1 [pid 5090] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5089] <... write resumed>) = 1 [pid 5088] exit_group(0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5089] exit_group(0 [pid 5088] <... exit_group resumed>) = ? [pid 5074] <... openat resumed>) = 3 [pid 5090] <... openat resumed>) = 5 [pid 5089] <... exit_group resumed>) = ? [pid 5088] +++ exited with 0 +++ [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5092] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5092] write(5, "t", 1 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5090] write(5, "t", 1 [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5074] <... ioctl resumed>) = 0 [pid 5089] +++ exited with 0 +++ [pid 5074] close(3 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5092] <... write resumed>) = 1 [pid 5091] <... write resumed>) = 1 [pid 5090] <... write resumed>) = 1 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5094 attached [pid 5092] exit_group(0 [pid 5091] exit_group(0 [pid 5090] exit_group(0 [pid 5065] <... openat resumed>) = 3 [pid 5094] set_robust_list(0x555556beb660, 24 [pid 5092] <... exit_group resumed>) = ? [pid 5091] <... exit_group resumed>) = ? [pid 5090] <... exit_group resumed>) = ? [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5094 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5094] <... set_robust_list resumed>) = 0 [pid 5092] +++ exited with 0 +++ [pid 5091] +++ exited with 0 +++ [pid 5090] +++ exited with 0 +++ [pid 5065] <... ioctl resumed>) = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5065] close(3 [pid 5094] <... prctl resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5065] <... close resumed>) = 0 [pid 5094] setpgid(0, 0 [pid 5068] <... openat resumed>) = 3 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5066] <... restart_syscall resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] <... setpgid resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5095 [pid 5094] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... ioctl resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5094] write(3, "1000", 4 [pid 5069] <... openat resumed>) = 3 [pid 5068] close(3 [pid 5067] <... openat resumed>) = 3 [pid 5066] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5095 attached [pid 5094] <... write resumed>) = 4 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] <... close resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5095] set_robust_list(0x555556beb660, 24 [pid 5094] close(3 [pid 5069] <... ioctl resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... ioctl resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5069] close(3 [pid 5067] close(3 [pid 5066] close(3 [pid 5095] <... set_robust_list resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5069] <... close resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached ./strace-static-x86_64: Process 5098 attached ./strace-static-x86_64: Process 5097 attached ./strace-static-x86_64: Process 5096 attached [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5099] set_robust_list(0x555556beb660, 24 [pid 5098] set_robust_list(0x555556beb660, 24 [pid 5097] set_robust_list(0x555556beb660, 24 [pid 5094] <... openat resumed>) = 4 [pid 5096] set_robust_list(0x555556beb660, 24 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5096 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5098 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5098] <... set_robust_list resumed>) = 0 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5096] <... set_robust_list resumed>) = 0 [pid 5095] <... prctl resumed>) = 0 [pid 5094] sendfile(4, 3, [118] [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5097 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] <... prctl resumed>) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] <... prctl resumed>) = 0 [pid 5095] setpgid(0, 0 [pid 5099] <... prctl resumed>) = 0 [pid 5098] close(3 [pid 5096] setpgid(0, 0 [pid 5095] <... setpgid resumed>) = 0 [pid 5099] setpgid(0, 0 [pid 5096] <... setpgid resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] <... prctl resumed>) = 0 [pid 5099] <... setpgid resumed>) = 0 [pid 5098] <... close resumed>) = 0 [pid 5097] setpgid(0, 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5098] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5097] <... setpgid resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] <... openat resumed>) = 3 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5098] <... openat resumed>) = 3 [pid 5097] <... openat resumed>) = 3 [pid 5097] write(3, "1000", 4 [pid 5096] <... openat resumed>) = 3 [pid 5097] <... write resumed>) = 4 [pid 5096] write(3, "1000", 4 [pid 5098] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5098] sendfile(4, 3, [118] [pid 5099] <... openat resumed>) = 3 [pid 5097] close(3 [pid 5096] <... write resumed>) = 4 [pid 5095] write(3, "1000", 4 [pid 5099] write(3, "1000", 4 [pid 5097] <... close resumed>) = 0 [pid 5096] close(3 [pid 5095] <... write resumed>) = 4 [pid 5097] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5096] <... close resumed>) = 0 [pid 5095] close(3 [pid 5099] <... write resumed>) = 4 [pid 5099] close(3 [pid 5095] <... close resumed>) = 0 [pid 5099] <... close resumed>) = 0 [pid 5097] <... openat resumed>) = 3 [pid 5096] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5095] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5099] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5097] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5096] <... openat resumed>) = 3 [pid 5099] <... openat resumed>) = 3 [pid 5097] <... openat resumed>) = 4 [pid 5096] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5095] <... openat resumed>) = 3 [pid 5097] sendfile(4, 3, [118] [pid 5096] <... openat resumed>) = 4 [pid 5095] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5099] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5099] sendfile(4, 3, [118] [pid 5095] <... openat resumed>) = 4 [pid 5096] sendfile(4, 3, [118] [ 59.616440][ T5094] syz-executor207 (5094): drop_caches: 1 [ 59.618380][ T5098] syz-executor207 (5098): drop_caches: 1 [ 59.645355][ T5097] syz-executor207 (5097): drop_caches: 1 [ 59.653463][ T5095] syz-executor207 (5095): drop_caches: 1 [ 59.685569][ T5096] syz-executor207 (5096): drop_caches: 1 [ 59.722743][ T5099] syz-executor207 (5099): drop_caches: 1 [pid 5095] sendfile(4, 3, [118] [pid 5094] <... sendfile resumed> => [671], 553) = 553 [ 59.898848][ T5098] syz-executor207 (5098): drop_caches: 1 [ 59.933304][ T5094] syz-executor207 (5094): drop_caches: 1 [pid 5098] <... sendfile resumed> => [671], 553) = 553 [pid 5098] memfd_create("syzkaller", 0) = 5 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5097] <... sendfile resumed> => [671], 553) = 553 [pid 5097] memfd_create("syzkaller", 0 [pid 5094] memfd_create("syzkaller", 0 [pid 5097] <... memfd_create resumed>) = 5 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5095] <... sendfile resumed> => [671], 553) = 553 [pid 5094] <... memfd_create resumed>) = 5 [pid 5097] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5095] memfd_create("syzkaller", 0 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5095] <... memfd_create resumed>) = 5 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 59.945649][ T5095] syz-executor207 (5095): drop_caches: 1 [ 59.953024][ T5097] syz-executor207 (5097): drop_caches: 1 [pid 5098] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5096] <... sendfile resumed> => [671], 553) = 553 [pid 5099] <... sendfile resumed> => [671], 553) = 553 [pid 5097] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5096] memfd_create("syzkaller", 0 [pid 5094] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5096] <... memfd_create resumed>) = 5 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5099] memfd_create("syzkaller", 0) = 5 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5096] <... mmap resumed>) = 0x7f5e41d3e000 [ 59.992058][ T5096] syz-executor207 (5096): drop_caches: 1 [ 60.005037][ T5099] syz-executor207 (5099): drop_caches: 1 [pid 5095] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5098] <... write resumed>) = 2097152 [pid 5098] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5099] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5098] <... openat resumed>) = 6 [pid 5098] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5098] ioctl(6, LOOP_CLR_FD) = 0 [pid 5098] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5097] <... write resumed>) = 2097152 [pid 5098] close(6 [pid 5097] munmap(0x7f5e41d3e000, 138412032 [pid 5094] <... write resumed>) = 2097152 [pid 5098] <... close resumed>) = 0 [pid 5096] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5094] munmap(0x7f5e41d3e000, 138412032 [pid 5098] close(5 [pid 5095] <... write resumed>) = 2097152 [pid 5094] <... munmap resumed>) = 0 [pid 5097] <... munmap resumed>) = 0 [pid 5095] munmap(0x7f5e41d3e000, 138412032 [pid 5098] <... close resumed>) = 0 [pid 5097] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5095] <... munmap resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5097] <... openat resumed>) = 6 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5094] <... openat resumed>) = 6 [pid 5098] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5097] ioctl(6, LOOP_SET_FD, 5 [pid 5095] <... openat resumed>) = 6 [pid 5094] ioctl(6, LOOP_SET_FD, 5 [pid 5098] <... openat resumed>) = 5 [pid 5097] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] ioctl(6, LOOP_SET_FD, 5 [pid 5094] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] write(5, "t", 1 [pid 5097] ioctl(6, LOOP_CLR_FD [pid 5095] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] ioctl(6, LOOP_CLR_FD [pid 5097] <... ioctl resumed>) = 0 [pid 5094] <... ioctl resumed>) = 0 [pid 5095] ioctl(6, LOOP_CLR_FD) = 0 [pid 5097] ioctl(6, LOOP_SET_FD, 5 [pid 5094] ioctl(6, LOOP_SET_FD, 5 [pid 5099] <... write resumed>) = 2097152 [pid 5098] <... write resumed>) = 1 [pid 5098] exit_group(0 [pid 5097] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] <... exit_group resumed>) = ? [pid 5097] close(6 [pid 5095] ioctl(6, LOOP_SET_FD, 5 [pid 5094] close(6 [pid 5099] munmap(0x7f5e41d3e000, 138412032 [pid 5098] +++ exited with 0 +++ [pid 5097] <... close resumed>) = 0 [pid 5096] <... write resumed>) = 2097152 [pid 5095] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] <... close resumed>) = 0 [pid 5097] close(5 [pid 5096] munmap(0x7f5e41d3e000, 138412032 [pid 5095] close(6 [pid 5094] close(5 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=27 /* 0.27 s */} --- [pid 5096] <... munmap resumed>) = 0 [pid 5095] <... close resumed>) = 0 [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5095] close(5 [pid 5099] <... munmap resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5099] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5067] <... openat resumed>) = 3 [pid 5099] <... openat resumed>) = 6 [pid 5096] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5094] <... close resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3 [pid 5099] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5096] <... openat resumed>) = 6 [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5099] ioctl(6, LOOP_CLR_FD [pid 5096] ioctl(6, LOOP_SET_FD, 5 [pid 5099] <... ioctl resumed>) = 0 [pid 5096] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5100 attached [pid 5097] <... close resumed>) = 0 [pid 5096] ioctl(6, LOOP_CLR_FD [pid 5100] set_robust_list(0x555556beb660, 24 [pid 5096] <... ioctl resumed>) = 0 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5099] ioctl(6, LOOP_SET_FD, 5 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5097] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5097] write(5, "t", 1 [pid 5096] ioctl(6, LOOP_SET_FD, 5 [pid 5099] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] <... prctl resumed>) = 0 [pid 5096] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] setpgid(0, 0 [pid 5099] close(6 [pid 5096] close(6 [pid 5100] <... setpgid resumed>) = 0 [pid 5099] <... close resumed>) = 0 [pid 5096] <... close resumed>) = 0 [pid 5095] <... close resumed>) = 0 [pid 5099] close(5 [pid 5096] close(5 [pid 5095] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5094] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] <... close resumed>) = 0 [pid 5097] <... write resumed>) = 1 [pid 5097] exit_group(0) = ? [pid 5100] <... openat resumed>) = 3 [pid 5097] +++ exited with 0 +++ [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5100 [pid 5100] write(3, "1000", 4 [pid 5099] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5095] <... openat resumed>) = 5 [pid 5094] <... openat resumed>) = 5 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 5100] <... write resumed>) = 4 [pid 5099] <... openat resumed>) = 5 [pid 5095] write(5, "t", 1 [pid 5099] write(5, "t", 1 [pid 5100] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5100] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3 [pid 5100] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5099] <... write resumed>) = 1 [pid 5096] <... close resumed>) = 0 [pid 5095] <... write resumed>) = 1 [pid 5094] write(5, "t", 1 [pid 5068] <... close resumed>) = 0 [pid 5095] exit_group(0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5099] exit_group(0 [pid 5100] <... openat resumed>) = 3 [pid 5099] <... exit_group resumed>) = ? [pid 5095] <... exit_group resumed>) = ? [pid 5100] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5101 [pid 5100] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5101 attached [pid 5100] sendfile(4, 3, [118] [pid 5101] set_robust_list(0x555556beb660, 24) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] setpgid(0, 0) = 0 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] +++ exited with 0 +++ [pid 5095] +++ exited with 0 +++ [pid 5094] <... write resumed>) = 1 [pid 5094] exit_group(0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5094] <... exit_group resumed>) = ? [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5101] write(3, "1000", 4 [pid 5096] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5101] <... write resumed>) = 4 [pid 5096] <... openat resumed>) = 5 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5101] close(3 [pid 5096] write(5, "t", 1 [pid 5065] <... ioctl resumed>) = 0 [pid 5101] <... close resumed>) = 0 [pid 5065] close(3./strace-static-x86_64: Process 5102 attached [pid 5101] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5065] <... close resumed>) = 0 [pid 5102] set_robust_list(0x555556beb660, 24 [pid 5101] <... openat resumed>) = 3 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5102 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5103 attached [pid 5102] <... set_robust_list resumed>) = 0 [pid 5101] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5103] set_robust_list(0x555556beb660, 24 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] <... openat resumed>) = 4 [pid 5096] <... write resumed>) = 1 [pid 5094] +++ exited with 0 +++ [pid 5103] <... set_robust_list resumed>) = 0 [pid 5101] sendfile(4, 3, [118] [pid 5096] exit_group(0 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5103 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] <... prctl resumed>) = 0 [pid 5096] <... exit_group resumed>) = ? [pid 5103] <... prctl resumed>) = 0 [pid 5102] setpgid(0, 0 [pid 5096] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5103] setpgid(0, 0) = 0 [pid 5102] <... setpgid resumed>) = 0 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... restart_syscall resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5103] <... openat resumed>) = 3 [pid 5102] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5103] write(3, "1000", 4 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5103] <... write resumed>) = 4 [pid 5102] write(3, "1000", 4 [pid 5069] <... ioctl resumed>) = 0 [pid 5069] close(3 [pid 5103] close(3 [pid 5102] <... write resumed>) = 4 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5103] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5103] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5103] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5104 attached ) = 4 [pid 5102] close(3 [pid 5103] sendfile(4, 3, [118] [pid 5102] <... close resumed>) = 0 [pid 5104] set_robust_list(0x555556beb660, 24 [pid 5102] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5104 [pid 5104] <... set_robust_list resumed>) = 0 [pid 5102] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = 0 [pid 5074] close(3 [pid 5102] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] <... openat resumed>) = 4 [pid 5074] <... close resumed>) = 0 [pid 5102] sendfile(4, 3, [118] [pid 5104] <... prctl resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5104] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5105 attached [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] set_robust_list(0x555556beb660, 24) = 0 [pid 5104] <... openat resumed>) = 3 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] write(3, "1000", 4 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5105 [pid 5104] <... write resumed>) = 4 [pid 5104] close(3 [pid 5105] <... prctl resumed>) = 0 [pid 5105] setpgid(0, 0 [pid 5104] <... close resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5105] <... setpgid resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5104] <... openat resumed>) = 3 [pid 5104] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5105] <... openat resumed>) = 3 [pid 5105] write(3, "1000", 4 [pid 5104] <... openat resumed>) = 4 [pid 5105] <... write resumed>) = 4 [pid 5105] close(3 [pid 5104] sendfile(4, 3, [118] [pid 5105] <... close resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5105] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 60.488809][ T5100] syz-executor207 (5100): drop_caches: 1 [ 60.605147][ T5101] syz-executor207 (5101): drop_caches: 1 [ 60.671173][ T5103] syz-executor207 (5103): drop_caches: 1 [ 60.671824][ T5102] syz-executor207 (5102): drop_caches: 1 [ 60.741009][ T5104] syz-executor207 (5104): drop_caches: 1 [ 60.749961][ T5105] syz-executor207 (5105): drop_caches: 1 [pid 5105] sendfile(4, 3, [118] [pid 5100] <... sendfile resumed> => [671], 553) = 553 [pid 5100] memfd_create("syzkaller", 0) = 5 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 60.782182][ T5100] syz-executor207 (5100): drop_caches: 1 [pid 5100] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5101] <... sendfile resumed> => [671], 553) = 553 [pid 5101] memfd_create("syzkaller", 0) = 5 [pid 5100] <... write resumed>) = 2097152 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 60.862879][ T5101] syz-executor207 (5101): drop_caches: 1 [pid 5100] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5100] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5100] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5100] ioctl(6, LOOP_CLR_FD) = 0 [pid 5100] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5100] close(6) = 0 [pid 5100] close(5) = 0 [pid 5103] <... sendfile resumed> => [671], 553) = 553 [ 60.916686][ T5102] syz-executor207 (5102): drop_caches: 1 [ 60.928175][ T5103] syz-executor207 (5103): drop_caches: 1 [pid 5103] memfd_create("syzkaller", 0 [pid 5102] <... sendfile resumed> => [671], 553) = 553 [pid 5101] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5100] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5103] <... memfd_create resumed>) = 5 [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5102] memfd_create("syzkaller", 0 [pid 5100] <... openat resumed>) = 5 [pid 5105] <... sendfile resumed> => [671], 553) = 553 [pid 5104] <... sendfile resumed> => [671], 553) = 553 [pid 5102] <... memfd_create resumed>) = 5 [pid 5105] memfd_create("syzkaller", 0 [pid 5104] memfd_create("syzkaller", 0 [pid 5103] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5100] write(5, "t", 1 [pid 5105] <... memfd_create resumed>) = 5 [pid 5104] <... memfd_create resumed>) = 5 [pid 5102] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5104] <... mmap resumed>) = 0x7f5e41d3e000 [ 60.961149][ T5105] syz-executor207 (5105): drop_caches: 1 [ 60.978372][ T5104] syz-executor207 (5104): drop_caches: 1 [pid 5103] <... write resumed>) = 2097152 [pid 5100] <... write resumed>) = 1 [pid 5100] exit_group(0) = ? [pid 5104] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5103] munmap(0x7f5e41d3e000, 138412032 [pid 5102] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5100] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5103] <... munmap resumed>) = 0 [pid 5101] <... write resumed>) = 2097152 [pid 5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5103] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5103] ioctl(6, LOOP_CLR_FD) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5105] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5067] close(3 [pid 5103] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5067] <... close resumed>) = 0 [pid 5103] close(6) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5103] close(5 [pid 5101] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5101] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5106 attached [pid 5105] <... write resumed>) = 2097152 [pid 5103] <... close resumed>) = 0 [pid 5102] <... write resumed>) = 2097152 [pid 5106] set_robust_list(0x555556beb660, 24 [pid 5105] munmap(0x7f5e41d3e000, 138412032 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5106 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] setpgid(0, 0 [pid 5101] <... openat resumed>) = 6 [pid 5106] <... setpgid resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5106] write(3, "1000", 4) = 4 [pid 5106] close(3 [pid 5102] munmap(0x7f5e41d3e000, 138412032 [pid 5106] <... close resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5106] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5106] sendfile(4, 3, [118] [pid 5101] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5101] ioctl(6, LOOP_CLR_FD) = 0 [pid 5102] <... munmap resumed>) = 0 [pid 5105] <... munmap resumed>) = 0 [pid 5103] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5105] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5103] write(5, "t", 1 [pid 5102] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5101] ioctl(6, LOOP_SET_FD, 5 [pid 5105] <... openat resumed>) = 6 [pid 5102] <... openat resumed>) = 6 [pid 5101] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5105] ioctl(6, LOOP_SET_FD, 5 [pid 5102] ioctl(6, LOOP_SET_FD, 5 [pid 5101] close(6 [pid 5105] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] <... write resumed>) = 2097152 [pid 5102] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] <... close resumed>) = 0 [pid 5105] ioctl(6, LOOP_CLR_FD [pid 5104] munmap(0x7f5e41d3e000, 138412032 [pid 5102] ioctl(6, LOOP_CLR_FD [pid 5101] close(5 [pid 5105] <... ioctl resumed>) = 0 [pid 5102] <... ioctl resumed>) = 0 [pid 5101] <... close resumed>) = 0 [pid 5101] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5101] write(5, "t", 1 [pid 5105] ioctl(6, LOOP_SET_FD, 5 [pid 5102] ioctl(6, LOOP_SET_FD, 5 [pid 5105] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5102] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5102] close(6) = 0 [pid 5105] close(6 [pid 5104] <... munmap resumed>) = 0 [pid 5102] close(5 [pid 5103] <... write resumed>) = 1 [pid 5101] <... write resumed>) = 1 [pid 5105] <... close resumed>) = 0 [pid 5103] exit_group(0 [pid 5101] exit_group(0 [pid 5103] <... exit_group resumed>) = ? [pid 5101] <... exit_group resumed>) = ? [pid 5105] close(5 [pid 5103] +++ exited with 0 +++ [pid 5104] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5101] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5068] <... restart_syscall resumed>) = 0 [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... restart_syscall resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] close(3 [pid 5065] <... openat resumed>) = 3 [pid 5104] <... openat resumed>) = 6 [pid 5068] <... close resumed>) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5104] ioctl(6, LOOP_SET_FD, 5 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5107 attached [pid 5104] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5102] <... close resumed>) = 0 [pid 5065] close(3 [pid 5107] set_robust_list(0x555556beb660, 24 [pid 5105] <... close resumed>) = 0 [pid 5104] ioctl(6, LOOP_CLR_FD [pid 5107] <... set_robust_list resumed>) = 0 [pid 5104] <... ioctl resumed>) = 0 [pid 5102] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5107 [pid 5065] <... close resumed>) = 0 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5107] setpgid(0, 0 [pid 5105] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5102] <... openat resumed>) = 5 [pid 5102] write(5, "t", 1 [pid 5107] <... setpgid resumed>) = 0 [pid 5105] <... openat resumed>) = 5 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5108 ./strace-static-x86_64: Process 5108 attached [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] write(5, "t", 1 [pid 5108] set_robust_list(0x555556beb660, 24 [pid 5107] <... openat resumed>) = 3 [pid 5104] ioctl(6, LOOP_SET_FD, 5 [pid 5107] write(3, "1000", 4 [pid 5104] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] <... write resumed>) = 4 [pid 5107] close(3) = 0 [pid 5108] <... set_robust_list resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5104] close(6 [pid 5107] <... openat resumed>) = 3 [pid 5107] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5104] <... close resumed>) = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] <... openat resumed>) = 4 [pid 5108] <... prctl resumed>) = 0 [pid 5107] sendfile(4, 3, [118] [pid 5108] setpgid(0, 0 [pid 5104] close(5 [pid 5102] <... write resumed>) = 1 [pid 5102] exit_group(0 [pid 5108] <... setpgid resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] <... write resumed>) = 1 [pid 5104] <... close resumed>) = 0 [pid 5102] <... exit_group resumed>) = ? [pid 5108] <... openat resumed>) = 3 [pid 5102] +++ exited with 0 +++ [pid 5105] exit_group(0) = ? [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5108] write(3, "1000", 4 [pid 5104] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5108] <... write resumed>) = 4 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5108] close(3 [pid 5104] <... openat resumed>) = 5 [pid 5108] <... close resumed>) = 0 [pid 5104] write(5, "t", 1 [pid 5066] <... openat resumed>) = 3 [pid 5108] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5108] <... openat resumed>) = 3 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached [pid 5108] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5105] +++ exited with 0 +++ [pid 5109] set_robust_list(0x555556beb660, 24 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5109 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] <... openat resumed>) = 4 [pid 5109] setpgid(0, 0 [pid 5108] sendfile(4, 3, [118] [pid 5104] <... write resumed>) = 1 [pid 5109] <... setpgid resumed>) = 0 [pid 5104] exit_group(0) = ? [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = 0 [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5110 attached [pid 5109] write(3, "1000", 4 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5110 [pid 5109] <... write resumed>) = 4 [pid 5109] close(3 [pid 5110] set_robust_list(0x555556beb660, 24 [pid 5109] <... close resumed>) = 0 [pid 5104] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5110] <... set_robust_list resumed>) = 0 [pid 5109] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] <... openat resumed>) = 3 [pid 5109] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5111 ./strace-static-x86_64: Process 5111 attached [pid 5111] set_robust_list(0x555556beb660, 24) = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] <... prctl resumed>) = 0 [pid 5109] <... openat resumed>) = 4 [pid 5111] setpgid(0, 0 [pid 5109] sendfile(4, 3, [118] [pid 5110] setpgid(0, 0 [pid 5111] <... setpgid resumed>) = 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5111] write(3, "1000", 4) = 4 [pid 5111] close(3) = 0 [pid 5111] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5111] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5111] sendfile(4, 3, [118] [pid 5110] <... openat resumed>) = 3 [pid 5110] write(3, "1000", 4) = 4 [pid 5110] close(3) = 0 [pid 5110] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5110] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 61.459911][ T5106] syz-executor207 (5106): drop_caches: 1 [ 61.477900][ T5107] syz-executor207 (5107): drop_caches: 1 [ 61.570197][ T5108] syz-executor207 (5108): drop_caches: 1 [ 61.609219][ T5109] syz-executor207 (5109): drop_caches: 1 [ 61.642242][ T5111] syz-executor207 (5111): drop_caches: 1 [ 61.754260][ T5110] syz-executor207 (5110): drop_caches: 1 [pid 5110] sendfile(4, 3, [118] [pid 5107] <... sendfile resumed> => [671], 553) = 553 [pid 5106] <... sendfile resumed> => [671], 553) = 553 [pid 5109] <... sendfile resumed> => [671], 553) = 553 [pid 5108] <... sendfile resumed> => [671], 553) = 553 [pid 5108] memfd_create("syzkaller", 0) = 5 [pid 5107] memfd_create("syzkaller", 0 [pid 5106] memfd_create("syzkaller", 0 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5107] <... memfd_create resumed>) = 5 [pid 5106] <... memfd_create resumed>) = 5 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5107] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5106] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5109] memfd_create("syzkaller", 0) = 5 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 61.878517][ T5108] syz-executor207 (5108): drop_caches: 1 [ 61.893111][ T5107] syz-executor207 (5107): drop_caches: 1 [ 61.900869][ T5106] syz-executor207 (5106): drop_caches: 1 [ 61.914219][ T5109] syz-executor207 (5109): drop_caches: 1 [pid 5108] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5106] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5107] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5111] <... sendfile resumed> => [671], 553) = 553 [pid 5111] memfd_create("syzkaller", 0) = 5 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 61.979438][ T2878] [ 61.981824][ T2878] ====================================================== [ 61.988044][ T5111] syz-executor207 (5111): drop_caches: 1 [ 61.988924][ T2878] WARNING: possible circular locking dependency detected [ 61.988930][ T2878] 6.6.0-syzkaller-14500-g1c41041124bd #0 Not tainted [ 61.988940][ T2878] ------------------------------------------------------ [ 61.988945][ T2878] kworker/u4:10/2878 is trying to acquire lock: [pid 5106] <... write resumed>) = 2097152 [pid 5106] munmap(0x7f5e41d3e000, 138412032 [pid 5107] <... write resumed>) = 2097152 [pid 5107] munmap(0x7f5e41d3e000, 138412032 [pid 5106] <... munmap resumed>) = 0 [ 61.988954][ T2878] ffff88805d2b99c0 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x1a96/0x2420 [ 62.030720][ T2878] [ 62.030720][ T2878] but task is already holding lock: [ 62.038091][ T2878] ffff88805d288190 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730 [ 62.047805][ T2878] [ 62.047805][ T2878] which lock already depends on the new lock. [ 62.047805][ T2878] [ 62.058222][ T2878] [ 62.058222][ T2878] the existing dependency chain (in reverse order) is: [ 62.067252][ T2878] [ 62.067252][ T2878] -> #1 (&ni->mrec_lock){+.+.}-{3:3}: [ 62.074942][ T2878] __mutex_lock+0x181/0x1340 [ 62.080089][ T2878] map_mft_record+0x4a/0x730 [ 62.086261][ T2878] ntfs_attr_extend_allocation+0x268/0x3830 [ 62.092725][ T2878] ntfs_file_write_iter+0xaa0/0x2060 [ 62.099171][ T2878] vfs_write+0x64f/0xdf0 [ 62.103947][ T2878] ksys_write+0x12f/0x250 [ 62.108909][ T2878] do_syscall_64+0x3f/0x110 [ 62.114579][ T2878] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 62.121116][ T2878] [ 62.121116][ T2878] -> #0 (&rl->lock){++++}-{3:3}: [ 62.127499][ T5110] syz-executor207 (5110): drop_caches: 1 [ 62.128251][ T2878] __lock_acquire+0x2e3d/0x5de0 [ 62.144689][ T2878] lock_acquire+0x1ae/0x510 [ 62.149771][ T2878] down_read+0x9c/0x470 [ 62.154464][ T2878] ntfs_read_folio+0x1a96/0x2420 [ 62.160034][ T2878] filemap_read_folio+0xe9/0x2c0 [ 62.165706][ T2878] do_read_cache_folio+0x205/0x540 [ 62.171400][ T2878] read_cache_page+0x5b/0x160 [ 62.176613][ T2878] ntfs_sync_mft_mirror+0x242/0x1eb0 [ 62.182544][ T2878] write_mft_record_nolock+0x1967/0x1d90 [ 62.188810][ T2878] write_mft_record+0x14b/0x380 [ 62.194430][ T2878] __ntfs_write_inode+0x91b/0xc30 [ 62.201054][ T2878] __writeback_single_inode+0xa81/0xe70 [ 62.207181][ T2878] writeback_sb_inodes+0x599/0x1070 [ 62.212945][ T2878] __writeback_inodes_wb+0xff/0x2d0 [ 62.218708][ T2878] wb_writeback+0x7f8/0xa90 [ 62.223755][ T2878] wb_workfn+0x874/0xfd0 [ 62.228548][ T2878] process_one_work+0x884/0x15c0 [ 62.234022][ T2878] worker_thread+0x8b9/0x1290 [ 62.239228][ T2878] kthread+0x33c/0x440 [ 62.243949][ T2878] ret_from_fork+0x45/0x80 [ 62.248900][ T2878] ret_from_fork_asm+0x11/0x20 [ 62.254193][ T2878] [ 62.254193][ T2878] other info that might help us debug this: [ 62.254193][ T2878] [ 62.264510][ T2878] Possible unsafe locking scenario: [ 62.264510][ T2878] [ 62.271963][ T2878] CPU0 CPU1 [ 62.277372][ T2878] ---- ---- [ 62.282730][ T2878] lock(&ni->mrec_lock); [ 62.287103][ T2878] lock(&rl->lock); [ 62.293518][ T2878] lock(&ni->mrec_lock); [ 62.300382][ T2878] rlock(&rl->lock); [ 62.304384][ T2878] [ 62.304384][ T2878] *** DEADLOCK *** [ 62.304384][ T2878] [ 62.312535][ T2878] 4 locks held by kworker/u4:10/2878: [ 62.317946][ T2878] #0: ffff888140054d38 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 [ 62.328585][ T2878] #1: ffffc9000a5bfd80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 [ 62.340421][ T2878] #2: ffff88805ed2a0e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x1e/0xf0 [ 62.350996][ T2878] #3: ffff88805d288190 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730 [ 62.360443][ T2878] [ 62.360443][ T2878] stack backtrace: [ 62.366348][ T2878] CPU: 1 PID: 2878 Comm: kworker/u4:10 Not tainted 6.6.0-syzkaller-14500-g1c41041124bd #0 [ 62.377294][ T2878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 62.387357][ T2878] Workqueue: writeback wb_workfn (flush-7:4) [ 62.393471][ T2878] Call Trace: [ 62.396763][ T2878] [ 62.399703][ T2878] dump_stack_lvl+0xd9/0x1b0 [ 62.404338][ T2878] check_noncircular+0x311/0x3f0 [ 62.409298][ T2878] ? print_circular_bug+0x750/0x750 [ 62.414520][ T2878] __lock_acquire+0x2e3d/0x5de0 [ 62.419394][ T2878] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 62.425394][ T2878] lock_acquire+0x1ae/0x510 [ 62.429960][ T2878] ? ntfs_read_folio+0x1a96/0x2420 [ 62.435083][ T2878] ? lock_sync+0x190/0x190 [ 62.439530][ T2878] ? find_held_lock+0x2d/0x110 [ 62.444842][ T2878] ? preempt_count_sub+0x150/0x150 [ 62.449976][ T2878] down_read+0x9c/0x470 [ 62.454150][ T2878] ? ntfs_read_folio+0x1a96/0x2420 [ 62.459269][ T2878] ? down_write_killable+0x250/0x250 [ 62.464598][ T2878] ? mark_held_locks+0x9f/0xe0 [ 62.469375][ T2878] ? _raw_read_unlock_irqrestore+0x4e/0x70 [ 62.475229][ T2878] ntfs_read_folio+0x1a96/0x2420 [ 62.480229][ T2878] ? __print_lock_name+0x200/0x260 [ 62.485353][ T2878] ? ntfs_end_buffer_async_read+0x18d0/0x18d0 [ 62.491431][ T2878] ? folio_add_lru+0x451/0x7d0 [ 62.496215][ T2878] ? ntfs_end_buffer_async_read+0x18d0/0x18d0 [ 62.502286][ T2878] filemap_read_folio+0xe9/0x2c0 [ 62.507245][ T2878] ? __folio_lock_killable+0x20/0x20 [ 62.512522][ T2878] ? __filemap_get_folio+0x2b0/0xa90 [ 62.517799][ T2878] ? find_held_lock+0x2d/0x110 [ 62.522584][ T2878] do_read_cache_folio+0x205/0x540 [ 62.527714][ T2878] ? ntfs_end_buffer_async_read+0x18d0/0x18d0 [ 62.533806][ T2878] read_cache_page+0x5b/0x160 [ 62.538496][ T2878] ntfs_sync_mft_mirror+0x242/0x1eb0 [ 62.543794][ T2878] ? should_fail_request+0x80/0x80 [ 62.548889][ T2878] ? preempt_count_sub+0x150/0x150 [ 62.554089][ T2878] ? ntfs_mft_bitmap_extend_allocation_nolock+0x1f10/0x1f10 [ 62.561378][ T2878] write_mft_record_nolock+0x1967/0x1d90 [ 62.567041][ T2878] ? mark_held_locks+0x9f/0xe0 [ 62.571849][ T2878] ? ntfs_sync_mft_mirror+0x1eb0/0x1eb0 [ 62.577397][ T2878] ? preempt_count_sub+0x150/0x150 [ 62.582523][ T2878] write_mft_record+0x14b/0x380 [ 62.587374][ T2878] __ntfs_write_inode+0x91b/0xc30 [ 62.592451][ T2878] __writeback_single_inode+0xa81/0xe70 [ 62.598017][ T2878] ? __mark_inode_dirty+0xd50/0xd50 [ 62.603206][ T2878] ? _raw_spin_unlock+0x28/0x40 [ 62.608070][ T2878] ? wbc_attach_and_unlock_inode+0x561/0x910 [ 62.614104][ T2878] writeback_sb_inodes+0x599/0x1070 [ 62.619317][ T2878] ? sync_inode_metadata+0xe0/0xe0 [ 62.624598][ T2878] ? do_raw_spin_lock+0x12e/0x2b0 [ 62.629717][ T2878] ? move_expired_inodes+0x59e/0x850 [ 62.634997][ T2878] __writeback_inodes_wb+0xff/0x2d0 [ 62.640186][ T2878] ? writeback_sb_inodes+0x1070/0x1070 [ 62.645663][ T2878] ? queue_io+0x3ed/0x4e0 [ 62.650079][ T2878] wb_writeback+0x7f8/0xa90 [ 62.654622][ T2878] ? __writeback_inodes_wb+0x2d0/0x2d0 [ 62.660076][ T2878] ? get_nr_dirty_inodes+0x176/0x1e0 [ 62.666777][ T2878] wb_workfn+0x874/0xfd0 [ 62.671040][ T2878] ? trace_sched_wakeup+0xce/0x100 [ 62.676192][ T2878] ? inode_wait_for_writeback+0x30/0x30 [ 62.681829][ T2878] ? lock_sync+0x190/0x190 [ 62.686267][ T2878] ? lock_sync+0x190/0x190 [ 62.690703][ T2878] process_one_work+0x884/0x15c0 [ 62.695646][ T2878] ? lock_sync+0x190/0x190 [ 62.700407][ T2878] ? init_worker_pool+0x770/0x770 [ 62.705448][ T2878] ? assign_work+0x1a0/0x240 [ 62.710034][ T2878] worker_thread+0x8b9/0x1290 [ 62.714718][ T2878] ? __kthread_parkme+0x14b/0x220 [ 62.719802][ T2878] ? process_one_work+0x15c0/0x15c0 [ 62.725022][ T2878] kthread+0x33c/0x440 [pid 5106] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5111] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5109] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5108] <... write resumed>) = 2097152 [pid 5107] <... munmap resumed>) = 0 [pid 5106] ioctl(6, LOOP_SET_FD, 5 [pid 5107] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5106] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] <... openat resumed>) = 6 [pid 5106] ioctl(6, LOOP_CLR_FD [pid 5107] ioctl(6, LOOP_SET_FD, 5 [pid 5106] <... ioctl resumed>) = 0 [pid 5107] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] ioctl(6, LOOP_CLR_FD) = 0 [pid 5106] ioctl(6, LOOP_SET_FD, 5 [pid 5107] ioctl(6, LOOP_SET_FD, 5 [pid 5106] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5106] close(6 [pid 5107] close(6 [pid 5106] <... close resumed>) = 0 [pid 5107] <... close resumed>) = 0 [pid 5106] close(5 [pid 5107] close(5 [pid 5106] <... close resumed>) = 0 [pid 5107] <... close resumed>) = 0 [pid 5108] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5108] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5108] ioctl(6, LOOP_CLR_FD) = 0 [pid 5111] <... write resumed>) = 2097152 [pid 5107] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5106] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5108] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5108] close(6) = 0 [pid 5108] close(5) = 0 [pid 5111] munmap(0x7f5e41d3e000, 138412032 [pid 5110] <... sendfile resumed> => [671], 553) = 553 [pid 5109] <... write resumed>) = 2097152 [pid 5108] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5110] memfd_create("syzkaller", 0 [pid 5109] munmap(0x7f5e41d3e000, 138412032 [pid 5110] <... memfd_create resumed>) = 5 [pid 5111] <... munmap resumed>) = 0 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5109] <... munmap resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5111] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5111] ioctl(6, LOOP_CLR_FD [pid 5109] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5109] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5109] ioctl(6, LOOP_CLR_FD [pid 5111] <... ioctl resumed>) = 0 [pid 5109] <... ioctl resumed>) = 0 [pid 5109] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5109] close(6) = 0 [pid 5111] ioctl(6, LOOP_SET_FD, 5 [pid 5109] close(5 [pid 5111] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5111] close(6) = 0 [pid 5111] close(5) = 0 [pid 5109] <... close resumed>) = 0 [pid 5109] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5110] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5111] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5110] <... write resumed>) = 2097152 [pid 5110] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5110] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5110] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5110] ioctl(6, LOOP_CLR_FD) = 0 [pid 5110] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5110] close(6) = 0 [pid 5110] close(5) = 0 [pid 5110] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5111] <... openat resumed>) = 5 [pid 5110] <... openat resumed>) = 5 [pid 5109] <... openat resumed>) = 5 [pid 5108] <... openat resumed>) = 5 [pid 5107] <... openat resumed>) = 5 [pid 5106] <... openat resumed>) = 5 [pid 5111] write(5, "t", 1 [pid 5109] write(5, "t", 1 [pid 5108] write(5, "t", 1 [pid 5107] write(5, "t", 1 [pid 5106] write(5, "t", 1 [pid 5110] write(5, "t", 1 [pid 5109] <... write resumed>) = 1 [pid 5109] exit_group(0) = ? [pid 5109] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5111] <... write resumed>) = 1 [pid 5110] <... write resumed>) = 1 [pid 5108] <... write resumed>) = 1 [pid 5107] <... write resumed>) = 1 [pid 5106] <... write resumed>) = 1 [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5111] exit_group(0 [pid 5108] exit_group(0 [pid 5107] exit_group(0 [pid 5108] <... exit_group resumed>) = ? [pid 5107] <... exit_group resumed>) = ? [pid 5111] <... exit_group resumed>) = ? [pid 5110] exit_group(0 [pid 5106] exit_group(0 [pid 5066] <... restart_syscall resumed>) = 0 [pid 5111] +++ exited with 0 +++ [pid 5110] <... exit_group resumed>) = ? [pid 5107] +++ exited with 0 +++ [pid 5108] +++ exited with 0 +++ [pid 5106] <... exit_group resumed>) = ? [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5110] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5106] +++ exited with 0 +++ [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... ioctl resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5069] close(3 [pid 5068] close(3 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5066] <... ioctl resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] close(3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5069] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5066] <... close resumed>) = 0 [ 62.729080][ T2878] ? _raw_spin_unlock_irq+0x23/0x50 [ 62.734461][ T2878] ? kthread_complete_and_exit+0x40/0x40 [ 62.740116][ T2878] ret_from_fork+0x45/0x80 [ 62.744718][ T2878] ? kthread_complete_and_exit+0x40/0x40 [ 62.750360][ T2878] ret_from_fork_asm+0x11/0x20 [ 62.755127][ T2878] [pid 5074] <... ioctl resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5113 attached [pid 5067] <... ioctl resumed>) = 0 [pid 5113] set_robust_list(0x555556beb660, 24 [pid 5074] close(3 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5115 attached [pid 5113] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5114 attached [pid 5115] set_robust_list(0x555556beb660, 24 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] <... close resumed>) = 0 [pid 5067] close(3 [pid 5065] <... openat resumed>) = 3 [pid 5113] <... prctl resumed>) = 0 [pid 5114] set_robust_list(0x555556beb660, 24 [pid 5113] setpgid(0, 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... close resumed>) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5115] <... set_robust_list resumed>) = 0 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5113] <... setpgid resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... ioctl resumed>) = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] close(3 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] <... prctl resumed>) = 0 [pid 5065] <... close resumed>) = 0 ./strace-static-x86_64: Process 5116 attached [pid 5115] <... prctl resumed>) = 0 [pid 5114] setpgid(0, 0 [pid 5113] <... openat resumed>) = 3 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5115 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5114 [pid 5116] set_robust_list(0x555556beb660, 24 [pid 5115] setpgid(0, 0 [pid 5113] write(3, "1000", 4 [pid 5116] <... set_robust_list resumed>) = 0 [pid 5115] <... setpgid resumed>) = 0 [pid 5113] <... write resumed>) = 4 ./strace-static-x86_64: Process 5117 attached [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] <... setpgid resumed>) = 0 [pid 5113] close(3 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5116 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5113 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] set_robust_list(0x555556beb660, 24 [pid 5116] <... prctl resumed>) = 0 [pid 5115] <... openat resumed>) = 3 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] <... close resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5117 [pid 5117] <... set_robust_list resumed>) = 0 [pid 5115] write(3, "1000", 4 [pid 5114] <... openat resumed>) = 3 [pid 5113] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5116] setpgid(0, 0 [pid 5115] <... write resumed>) = 4 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] <... setpgid resumed>) = 0 [pid 5115] close(3 [pid 5114] write(3, "1000", 4 [pid 5113] <... openat resumed>) = 3 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5115] <... close resumed>) = 0 [pid 5114] <... write resumed>) = 4 [pid 5113] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5118 attached [pid 5115] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5117] <... prctl resumed>) = 0 [pid 5115] <... openat resumed>) = 3 [pid 5114] close(3 [pid 5113] <... openat resumed>) = 4 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5118 [pid 5116] <... openat resumed>) = 3 [pid 5115] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5113] sendfile(4, 3, [118] [pid 5118] set_robust_list(0x555556beb660, 24 [pid 5115] <... openat resumed>) = 4 [pid 5114] <... close resumed>) = 0 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5117] setpgid(0, 0 [pid 5115] sendfile(4, 3, [118] [pid 5114] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5117] <... setpgid resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] write(3, "1000", 4) = 4 [pid 5117] close(3) = 0 [pid 5117] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5117] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5114] <... openat resumed>) = 3 [pid 5117] sendfile(4, 3, [118] [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5114] sendfile(4, 3, [118] [pid 5118] <... prctl resumed>) = 0 [pid 5116] write(3, "1000", 4 [pid 5118] setpgid(0, 0 [pid 5116] <... write resumed>) = 4 [pid 5118] <... setpgid resumed>) = 0 [pid 5116] close(3) = 0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5118] write(3, "1000", 4) = 4 [pid 5116] <... openat resumed>) = 3 [pid 5118] close(3 [pid 5116] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5118] <... close resumed>) = 0 [pid 5118] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5116] <... openat resumed>) = 4 [pid 5118] <... openat resumed>) = 3 [pid 5118] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5116] sendfile(4, 3, [118] [pid 5118] <... openat resumed>) = 4 [ 63.097552][ T5113] syz-executor207 (5113): drop_caches: 1 [ 63.109420][ T5115] syz-executor207 (5115): drop_caches: 1 [ 63.112560][ T5117] syz-executor207 (5117): drop_caches: 1 [ 63.128106][ T5118] syz-executor207 (5118): drop_caches: 1 [ 63.130971][ T5114] syz-executor207 (5114): drop_caches: 1 [ 63.148638][ T5116] syz-executor207 (5116): drop_caches: 1 [pid 5118] sendfile(4, 3, [118] [pid 5115] <... sendfile resumed> => [671], 553) = 553 [pid 5118] <... sendfile resumed> => [671], 553) = 553 [pid 5114] <... sendfile resumed> => [671], 553) = 553 [pid 5114] memfd_create("syzkaller", 0) = 5 [pid 5118] memfd_create("syzkaller", 0 [pid 5117] <... sendfile resumed> => [671], 553) = 553 [pid 5116] <... sendfile resumed> => [671], 553) = 553 [pid 5115] memfd_create("syzkaller", 0 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5113] <... sendfile resumed> => [671], 553) = 553 [pid 5114] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5118] <... memfd_create resumed>) = 5 [pid 5115] <... memfd_create resumed>) = 5 [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] memfd_create("syzkaller", 0 [pid 5116] memfd_create("syzkaller", 0 [pid 5115] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5114] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5113] memfd_create("syzkaller", 0 [pid 5118] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5117] <... memfd_create resumed>) = 5 [pid 5116] <... memfd_create resumed>) = 5 [pid 5113] <... memfd_create resumed>) = 5 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 63.352717][ T5115] syz-executor207 (5115): drop_caches: 1 [ 63.354657][ T5113] syz-executor207 (5113): drop_caches: 1 [ 63.360860][ T5118] syz-executor207 (5118): drop_caches: 1 [ 63.365862][ T5117] syz-executor207 (5117): drop_caches: 1 [ 63.376438][ T5114] syz-executor207 (5114): drop_caches: 1 [ 63.380898][ T5116] syz-executor207 (5116): drop_caches: 1 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5113] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5118] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5115] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5114] <... write resumed>) = 2097152 [pid 5117] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5116] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5114] munmap(0x7f5e41d3e000, 138412032 [pid 5113] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5117] <... write resumed>) = 2097152 [pid 5116] <... write resumed>) = 2097152 [pid 5114] <... munmap resumed>) = 0 [pid 5113] <... write resumed>) = 2097152 [pid 5117] munmap(0x7f5e41d3e000, 138412032 [pid 5114] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5117] <... munmap resumed>) = 0 [pid 5115] <... write resumed>) = 2097152 [pid 5114] <... openat resumed>) = 6 [pid 5114] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5117] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5114] ioctl(6, LOOP_CLR_FD [pid 5115] munmap(0x7f5e41d3e000, 138412032 [pid 5118] <... write resumed>) = 2097152 [pid 5117] <... openat resumed>) = 6 [pid 5116] munmap(0x7f5e41d3e000, 138412032 [pid 5114] <... ioctl resumed>) = 0 [pid 5113] munmap(0x7f5e41d3e000, 138412032 [pid 5118] munmap(0x7f5e41d3e000, 138412032 [pid 5117] ioctl(6, LOOP_SET_FD, 5 [pid 5118] <... munmap resumed>) = 0 [pid 5117] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5116] <... munmap resumed>) = 0 [pid 5115] <... munmap resumed>) = 0 [pid 5113] <... munmap resumed>) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5117] ioctl(6, LOOP_CLR_FD [pid 5116] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5114] ioctl(6, LOOP_SET_FD, 5 [pid 5113] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5118] <... openat resumed>) = 6 [pid 5117] <... ioctl resumed>) = 0 [pid 5116] <... openat resumed>) = 6 [pid 5115] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5114] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] <... openat resumed>) = 6 [pid 5118] ioctl(6, LOOP_SET_FD, 5 [pid 5114] close(6 [pid 5116] ioctl(6, LOOP_SET_FD, 5 [pid 5115] <... openat resumed>) = 6 [pid 5113] ioctl(6, LOOP_SET_FD, 5 [pid 5118] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5118] ioctl(6, LOOP_CLR_FD [pid 5116] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5115] ioctl(6, LOOP_SET_FD, 5 [pid 5113] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5118] <... ioctl resumed>) = 0 [pid 5116] ioctl(6, LOOP_CLR_FD [pid 5115] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] ioctl(6, LOOP_CLR_FD [pid 5116] <... ioctl resumed>) = 0 [pid 5113] <... ioctl resumed>) = 0 [pid 5115] ioctl(6, LOOP_CLR_FD) = 0 [pid 5118] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5118] close(6) = 0 [pid 5118] close(5 [pid 5116] ioctl(6, LOOP_SET_FD, 5 [pid 5115] ioctl(6, LOOP_SET_FD, 5 [pid 5113] ioctl(6, LOOP_SET_FD, 5 [pid 5116] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5115] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5114] <... close resumed>) = 0 [pid 5113] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5114] close(5 [pid 5118] <... close resumed>) = 0 [pid 5116] close(6 [pid 5115] close(6 [pid 5114] <... close resumed>) = 0 [pid 5113] close(6) = 0 [pid 5113] close(5 [pid 5115] <... close resumed>) = 0 [pid 5117] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5117] close(6) = 0 [pid 5116] <... close resumed>) = 0 [pid 5115] close(5 [pid 5117] close(5 [pid 5116] close(5 [pid 5114] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5116] <... close resumed>) = 0 [pid 5114] <... openat resumed>) = 5 [pid 5114] write(5, "t", 1 [pid 5118] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5117] <... close resumed>) = 0 [pid 5118] <... openat resumed>) = 5 [pid 5117] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5118] write(5, "t", 1) = 1 [pid 5117] <... openat resumed>) = 5 [pid 5114] <... write resumed>) = 1 [pid 5118] exit_group(0 [pid 5117] write(5, "t", 1 [pid 5114] exit_group(0 [pid 5118] <... exit_group resumed>) = ? [pid 5115] <... close resumed>) = 0 [pid 5118] +++ exited with 0 +++ [pid 5114] <... exit_group resumed>) = ? [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5113] <... close resumed>) = 0 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5116] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5115] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5113] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5116] <... openat resumed>) = 5 [pid 5115] <... openat resumed>) = 5 [pid 5065] <... ioctl resumed>) = 0 [pid 5116] write(5, "t", 1 [pid 5115] write(5, "t", 1 [pid 5114] +++ exited with 0 +++ [pid 5113] <... openat resumed>) = 5 [pid 5065] close(3 [pid 5113] write(5, "t", 1 [pid 5117] <... write resumed>) = 1 [pid 5116] <... write resumed>) = 1 [pid 5115] <... write resumed>) = 1 [pid 5113] <... write resumed>) = 1 [pid 5065] <... close resumed>) = 0 [pid 5116] exit_group(0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5115] exit_group(0 [pid 5116] <... exit_group resumed>) = ? [pid 5115] <... exit_group resumed>) = ? [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5113] exit_group(0) = ? [pid 5066] <... openat resumed>) = 3 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5119 [pid 5117] exit_group(0 [pid 5116] +++ exited with 0 +++ [pid 5115] +++ exited with 0 +++ [pid 5113] +++ exited with 0 +++ [pid 5066] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5119 attached [pid 5117] <... exit_group resumed>) = ? [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5066] <... ioctl resumed>) = 0 [pid 5119] set_robust_list(0x555556beb660, 24 [pid 5117] +++ exited with 0 +++ [pid 5066] close(3 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5119] <... set_robust_list resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5120 attached [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5119] <... prctl resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5121 [pid 5119] setpgid(0, 0 [pid 5074] <... openat resumed>) = 3 [pid 5068] <... ioctl resumed>) = 0 [pid 5119] <... setpgid resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] close(3 [pid 5120] set_robust_list(0x555556beb660, 24 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5068] <... close resumed>) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5120 ./strace-static-x86_64: Process 5121 attached [pid 5120] <... set_robust_list resumed>) = 0 [pid 5119] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5121] set_robust_list(0x555556beb660, 24 [pid 5119] write(3, "1000", 4 [pid 5121] <... set_robust_list resumed>) = 0 [pid 5119] <... write resumed>) = 4 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5119] close(3 [pid 5121] <... prctl resumed>) = 0 [pid 5119] <... close resumed>) = 0 [pid 5121] setpgid(0, 0 [pid 5119] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5122 attached [pid 5121] <... setpgid resumed>) = 0 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5119] <... openat resumed>) = 3 [pid 5074] close(3 [pid 5069] <... ioctl resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5122 [pid 5074] <... close resumed>) = 0 [pid 5069] close(3 [pid 5122] set_robust_list(0x555556beb660, 24 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] <... prctl resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... close resumed>) = 0 [pid 5122] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5123 attached [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5121] <... openat resumed>) = 3 [pid 5120] setpgid(0, 0 [pid 5119] <... openat resumed>) = 4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5122] <... prctl resumed>) = 0 [pid 5120] <... setpgid resumed>) = 0 [pid 5122] setpgid(0, 0 [pid 5121] write(3, "1000", 4 [pid 5119] sendfile(4, 3, [118] [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5124 attached [pid 5123] set_robust_list(0x555556beb660, 24 [pid 5122] <... setpgid resumed>) = 0 [pid 5121] <... write resumed>) = 4 [pid 5120] <... openat resumed>) = 3 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5123 [pid 5124] set_robust_list(0x555556beb660, 24 [pid 5120] write(3, "1000", 4 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5124 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] close(3 [pid 5120] <... write resumed>) = 4 [pid 5124] <... prctl resumed>) = 0 [pid 5124] setpgid(0, 0 [pid 5123] <... set_robust_list resumed>) = 0 [pid 5121] <... close resumed>) = 0 [pid 5124] <... setpgid resumed>) = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5121] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5120] close(3 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] <... prctl resumed>) = 0 [pid 5122] <... openat resumed>) = 3 [pid 5121] <... openat resumed>) = 3 [pid 5120] <... close resumed>) = 0 [pid 5123] setpgid(0, 0 [pid 5120] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5122] write(3, "1000", 4 [pid 5124] <... openat resumed>) = 3 [pid 5123] <... setpgid resumed>) = 0 [pid 5122] <... write resumed>) = 4 [pid 5121] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5120] <... openat resumed>) = 3 [pid 5122] close(3) = 0 [pid 5122] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5121] <... openat resumed>) = 4 [pid 5120] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5124] write(3, "1000", 4 [pid 5123] <... openat resumed>) = 3 [pid 5122] <... openat resumed>) = 3 [pid 5121] sendfile(4, 3, [118] [pid 5120] <... openat resumed>) = 4 [pid 5120] sendfile(4, 3, [118] [pid 5122] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5124] <... write resumed>) = 4 [pid 5124] close(3) = 0 [pid 5122] <... openat resumed>) = 4 [pid 5124] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5122] sendfile(4, 3, [118] [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3 [pid 5124] <... openat resumed>) = 3 [pid 5123] <... close resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5124] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5123] <... openat resumed>) = 3 [pid 5123] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5124] sendfile(4, 3, [118] [ 63.847037][ T5119] syz-executor207 (5119): drop_caches: 1 [ 63.869390][ T5121] syz-executor207 (5121): drop_caches: 1 [ 63.898327][ T5122] syz-executor207 (5122): drop_caches: 1 [ 63.911093][ T5120] syz-executor207 (5120): drop_caches: 1 [ 63.915203][ T5123] syz-executor207 (5123): drop_caches: 1 [ 63.925248][ T5124] syz-executor207 (5124): drop_caches: 1 [pid 5123] sendfile(4, 3, [118] [pid 5121] <... sendfile resumed> => [671], 553) = 553 [pid 5119] <... sendfile resumed> => [671], 553) = 553 [ 64.057336][ T5119] syz-executor207 (5119): drop_caches: 1 [ 64.068927][ T5121] syz-executor207 (5121): drop_caches: 1 [ 64.084995][ T5124] syz-executor207 (5124): drop_caches: 1 [ 64.086546][ T5120] syz-executor207 (5120): drop_caches: 1 [ 64.095851][ T5123] syz-executor207 (5123): drop_caches: 1 [pid 5119] memfd_create("syzkaller", 0 [pid 5121] memfd_create("syzkaller", 0 [pid 5119] <... memfd_create resumed>) = 5 [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5124] <... sendfile resumed> => [671], 553) = 553 [pid 5123] <... sendfile resumed> => [671], 553) = 553 [pid 5122] <... sendfile resumed> => [671], 553) = 553 [pid 5120] <... sendfile resumed> => [671], 553) = 553 [pid 5121] <... memfd_create resumed>) = 5 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5124] memfd_create("syzkaller", 0) = 5 [pid 5123] memfd_create("syzkaller", 0 [pid 5122] memfd_create("syzkaller", 0 [pid 5120] memfd_create("syzkaller", 0 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5120] <... memfd_create resumed>) = 5 [pid 5123] <... memfd_create resumed>) = 5 [pid 5122] <... memfd_create resumed>) = 5 [pid 5121] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5120] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5124] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5123] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5122] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5121] <... write resumed>) = 2097152 [pid 5119] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5121] munmap(0x7f5e41d3e000, 138412032) = 0 [ 64.103348][ T5122] syz-executor207 (5122): drop_caches: 1 [pid 5121] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5121] ioctl(6, LOOP_SET_FD, 5 [pid 5124] <... write resumed>) = 2097152 [pid 5122] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5121] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5121] ioctl(6, LOOP_CLR_FD) = 0 [pid 5124] munmap(0x7f5e41d3e000, 138412032 [pid 5121] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5124] <... munmap resumed>) = 0 [pid 5123] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5121] close(6) = 0 [pid 5119] <... write resumed>) = 2097152 [pid 5121] close(5 [pid 5119] munmap(0x7f5e41d3e000, 138412032 [pid 5120] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5124] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5124] ioctl(6, LOOP_SET_FD, 5 [pid 5119] <... munmap resumed>) = 0 [pid 5124] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] ioctl(6, LOOP_CLR_FD) = 0 [pid 5124] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5124] close(6) = 0 [pid 5124] close(5) = 0 [pid 5123] <... write resumed>) = 2097152 [pid 5119] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5124] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5123] munmap(0x7f5e41d3e000, 138412032 [pid 5121] <... close resumed>) = 0 [pid 5119] <... openat resumed>) = 6 [pid 5123] <... munmap resumed>) = 0 [pid 5122] <... write resumed>) = 2097152 [pid 5119] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5122] munmap(0x7f5e41d3e000, 138412032 [pid 5119] ioctl(6, LOOP_CLR_FD) = 0 [pid 5121] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5124] <... openat resumed>) = 5 [pid 5121] <... openat resumed>) = 5 [pid 5121] write(5, "t", 1 [pid 5119] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5119] close(6) = 0 [pid 5124] write(5, "t", 1 [pid 5123] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5119] close(5 [pid 5123] <... openat resumed>) = 6 [pid 5122] <... munmap resumed>) = 0 [pid 5119] <... close resumed>) = 0 [pid 5123] ioctl(6, LOOP_SET_FD, 5 [pid 5119] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5124] <... write resumed>) = 1 [pid 5123] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5122] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5121] <... write resumed>) = 1 [pid 5120] <... write resumed>) = 2097152 [pid 5123] ioctl(6, LOOP_CLR_FD [pid 5122] <... openat resumed>) = 6 [pid 5123] <... ioctl resumed>) = 0 [pid 5122] ioctl(6, LOOP_SET_FD, 5 [pid 5121] exit_group(0 [pid 5124] exit_group(0) = ? [pid 5122] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5122] ioctl(6, LOOP_CLR_FD) = 0 [pid 5120] munmap(0x7f5e41d3e000, 138412032 [pid 5124] +++ exited with 0 +++ [pid 5122] ioctl(6, LOOP_SET_FD, 5 [pid 5121] <... exit_group resumed>) = ? [pid 5120] <... munmap resumed>) = 0 [pid 5119] <... openat resumed>) = 5 [pid 5123] ioctl(6, LOOP_SET_FD, 5 [pid 5122] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5123] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5122] close(6 [pid 5123] close(6 [pid 5122] <... close resumed>) = 0 [pid 5123] <... close resumed>) = 0 [pid 5122] close(5 [pid 5123] close(5 [pid 5122] <... close resumed>) = 0 [pid 5121] +++ exited with 0 +++ [pid 5119] write(5, "t", 1 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5120] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5120] <... openat resumed>) = 6 [pid 5067] <... openat resumed>) = 3 [pid 5120] ioctl(6, LOOP_SET_FD, 5 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5120] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... ioctl resumed>) = 0 [pid 5120] ioctl(6, LOOP_CLR_FD [pid 5067] close(3 [pid 5120] <... ioctl resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5125 attached , child_tidptr=0x555556beb650) = 5125 [pid 5125] set_robust_list(0x555556beb660, 24) = 0 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5125] setpgid(0, 0) = 0 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5120] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5120] close(6) = 0 [pid 5120] close(5 [pid 5069] <... openat resumed>) = 3 [pid 5125] write(3, "1000", 4) = 4 [pid 5125] close(3) = 0 [pid 5125] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5125] <... openat resumed>) = 3 [pid 5123] <... close resumed>) = 0 [pid 5122] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5119] <... write resumed>) = 1 [pid 5069] close(3 [pid 5125] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5069] <... close resumed>) = 0 [pid 5125] sendfile(4, 3, [118] [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5123] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5122] <... openat resumed>) = 5 [pid 5119] exit_group(0 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5126 [pid 5122] write(5, "t", 1 [pid 5119] <... exit_group resumed>) = ? [pid 5123] <... openat resumed>) = 5 [pid 5119] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5123] write(5, "t", 1 [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5126 attached ) = 3 [pid 5126] set_robust_list(0x555556beb660, 24 [pid 5122] <... write resumed>) = 1 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5122] exit_group(0 [pid 5065] <... ioctl resumed>) = 0 [pid 5126] <... set_robust_list resumed>) = 0 [pid 5122] <... exit_group resumed>) = ? [pid 5065] close(3 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] <... close resumed>) = 0 [pid 5126] <... prctl resumed>) = 0 [pid 5122] +++ exited with 0 +++ [pid 5120] <... close resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5128 attached ./strace-static-x86_64: Process 5127 attached [pid 5123] <... write resumed>) = 1 [pid 5126] setpgid(0, 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5128 [pid 5127] set_robust_list(0x555556beb660, 24 [pid 5123] exit_group(0 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5127 [pid 5128] set_robust_list(0x555556beb660, 24 [pid 5127] <... set_robust_list resumed>) = 0 [pid 5126] <... setpgid resumed>) = 0 [pid 5123] <... exit_group resumed>) = ? [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] write(3, "1000", 4 [pid 5128] <... set_robust_list resumed>) = 0 [pid 5127] <... prctl resumed>) = 0 [pid 5126] <... write resumed>) = 4 [pid 5123] +++ exited with 0 +++ [pid 5120] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5127] setpgid(0, 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5127] <... setpgid resumed>) = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] <... openat resumed>) = 5 [pid 5127] <... openat resumed>) = 3 [pid 5120] write(5, "t", 1 [pid 5128] <... prctl resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5128] setpgid(0, 0) = 0 [pid 5127] write(3, "1000", 4 [pid 5126] close(3 [pid 5120] <... write resumed>) = 1 [pid 5074] <... openat resumed>) = 3 [pid 5126] <... close resumed>) = 0 [pid 5120] exit_group(0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5126] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5120] <... exit_group resumed>) = ? [pid 5074] <... ioctl resumed>) = 0 [pid 5127] <... write resumed>) = 4 [pid 5126] <... openat resumed>) = 3 [pid 5127] close(3 [pid 5126] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5074] close(3 [pid 5126] <... openat resumed>) = 4 [pid 5126] sendfile(4, 3, [118] [pid 5127] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5127] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached [pid 5127] <... openat resumed>) = 3 [pid 5120] +++ exited with 0 +++ [pid 5127] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5129] set_robust_list(0x555556beb660, 24) = 0 [pid 5127] <... openat resumed>) = 4 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5129 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5129] <... prctl resumed>) = 0 [pid 5128] <... openat resumed>) = 3 [pid 5127] sendfile(4, 3, [118] [pid 5066] <... restart_syscall resumed>) = 0 [pid 5129] setpgid(0, 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5066] close(3 [pid 5129] <... setpgid resumed>) = 0 [pid 5128] write(3, "1000", 4 [pid 5066] <... close resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5128] <... write resumed>) = 4 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5130 attached ) = 3 [pid 5128] close(3 [pid 5130] set_robust_list(0x555556beb660, 24 [pid 5129] write(3, "1000", 4 [pid 5128] <... close resumed>) = 0 [pid 5130] <... set_robust_list resumed>) = 0 [pid 5129] <... write resumed>) = 4 [pid 5128] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5130 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5129] close(3 [pid 5128] <... openat resumed>) = 3 [pid 5130] <... prctl resumed>) = 0 [pid 5129] <... close resumed>) = 0 [pid 5128] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5129] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5130] setpgid(0, 0 [pid 5129] <... openat resumed>) = 3 [pid 5130] <... setpgid resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5128] <... openat resumed>) = 4 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... openat resumed>) = 4 [pid 5129] sendfile(4, 3, [118] [pid 5128] sendfile(4, 3, [118] [pid 5130] <... openat resumed>) = 3 [pid 5130] write(3, "1000", 4) = 4 [pid 5130] close(3) = 0 [pid 5130] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5130] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 64.555860][ T5126] syz-executor207 (5126): drop_caches: 1 [ 64.561917][ T5125] syz-executor207 (5125): drop_caches: 1 [ 64.607776][ T5130] syz-executor207 (5130): drop_caches: 1 [ 64.613737][ T5128] syz-executor207 (5128): drop_caches: 1 [ 64.616171][ T5127] syz-executor207 (5127): drop_caches: 1 [ 64.626176][ T5129] syz-executor207 (5129): drop_caches: 1 [pid 5130] sendfile(4, 3, [118] [pid 5125] <... sendfile resumed> => [671], 553) = 553 [pid 5126] <... sendfile resumed> => [671], 553) = 553 [pid 5129] <... sendfile resumed> => [671], 553) = 553 [pid 5128] <... sendfile resumed> => [671], 553) = 553 [pid 5126] memfd_create("syzkaller", 0 [pid 5125] memfd_create("syzkaller", 0 [pid 5126] <... memfd_create resumed>) = 5 [ 64.774197][ T5125] syz-executor207 (5125): drop_caches: 1 [ 64.794304][ T5126] syz-executor207 (5126): drop_caches: 1 [ 64.800779][ T5128] syz-executor207 (5128): drop_caches: 1 [ 64.810457][ T5129] syz-executor207 (5129): drop_caches: 1 [ 64.811916][ T5130] syz-executor207 (5130): drop_caches: 1 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5128] memfd_create("syzkaller", 0 [pid 5127] <... sendfile resumed> => [671], 553) = 553 [pid 5125] <... memfd_create resumed>) = 5 [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5130] <... sendfile resumed> => [671], 553) = 553 [pid 5130] memfd_create("syzkaller", 0 [pid 5129] memfd_create("syzkaller", 0 [pid 5128] <... memfd_create resumed>) = 5 [pid 5127] memfd_create("syzkaller", 0 [pid 5125] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5130] <... memfd_create resumed>) = 5 [pid 5129] <... memfd_create resumed>) = 5 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5127] <... memfd_create resumed>) = 5 [pid 5126] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5128] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5125] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5130] <... mmap resumed>) = 0x7f5e41d3e000 [ 64.819621][ T5127] syz-executor207 (5127): drop_caches: 1 [pid 5129] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5127] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5126] <... write resumed>) = 2097152 [pid 5126] munmap(0x7f5e41d3e000, 138412032 [pid 5128] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5126] <... munmap resumed>) = 0 [pid 5130] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5125] <... write resumed>) = 2097152 [pid 5126] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5126] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5125] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5126] ioctl(6, LOOP_CLR_FD) = 0 [pid 5126] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5126] close(6) = 0 [pid 5126] close(5 [pid 5128] <... write resumed>) = 2097152 [pid 5127] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5130] <... write resumed>) = 2097152 [pid 5125] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5128] munmap(0x7f5e41d3e000, 138412032 [pid 5125] <... openat resumed>) = 6 [pid 5125] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5125] ioctl(6, LOOP_CLR_FD) = 0 [pid 5128] <... munmap resumed>) = 0 [pid 5125] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5125] close(6) = 0 [pid 5125] close(5 [pid 5129] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5128] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5128] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5128] ioctl(6, LOOP_CLR_FD) = 0 [pid 5125] <... close resumed>) = 0 [pid 5126] <... close resumed>) = 0 [pid 5126] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5126] write(5, "t", 1 [pid 5128] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5127] <... write resumed>) = 2097152 [pid 5128] close(6 [pid 5127] munmap(0x7f5e41d3e000, 138412032 [pid 5128] <... close resumed>) = 0 [pid 5128] close(5 [pid 5130] munmap(0x7f5e41d3e000, 138412032 [pid 5126] <... write resumed>) = 1 [pid 5126] exit_group(0) = ? [pid 5126] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5125] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5125] write(5, "t", 1 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5130] <... munmap resumed>) = 0 [pid 5127] <... munmap resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5127] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5130] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5127] <... openat resumed>) = 6 [pid 5069] <... ioctl resumed>) = 0 [pid 5130] <... openat resumed>) = 6 [pid 5127] ioctl(6, LOOP_SET_FD, 5 [pid 5069] close(3 [pid 5130] ioctl(6, LOOP_SET_FD, 5 [pid 5127] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... close resumed>) = 0 [pid 5130] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5127] ioctl(6, LOOP_CLR_FD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5131 attached [pid 5130] ioctl(6, LOOP_CLR_FD [pid 5127] <... ioctl resumed>) = 0 [pid 5131] set_robust_list(0x555556beb660, 24 [pid 5130] <... ioctl resumed>) = 0 [pid 5128] <... close resumed>) = 0 [pid 5125] <... write resumed>) = 1 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5131 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5125] exit_group(0 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5125] <... exit_group resumed>) = ? [pid 5131] <... prctl resumed>) = 0 [pid 5128] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5131] setpgid(0, 0) = 0 [pid 5129] <... write resumed>) = 2097152 [pid 5128] <... openat resumed>) = 5 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5130] ioctl(6, LOOP_SET_FD, 5 [pid 5131] write(3, "1000", 4 [pid 5130] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... write resumed>) = 4 [pid 5130] close(6 [pid 5129] munmap(0x7f5e41d3e000, 138412032 [pid 5128] write(5, "t", 1 [pid 5127] ioctl(6, LOOP_SET_FD, 5 [pid 5131] close(3 [pid 5130] <... close resumed>) = 0 [pid 5127] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5125] +++ exited with 0 +++ [pid 5131] <... close resumed>) = 0 [pid 5130] close(5 [pid 5129] <... munmap resumed>) = 0 [pid 5128] <... write resumed>) = 1 [pid 5127] close(6 [pid 5131] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5129] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5128] exit_group(0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5131] <... openat resumed>) = 3 [pid 5128] <... exit_group resumed>) = ? [pid 5127] <... close resumed>) = 0 [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5131] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5130] <... close resumed>) = 0 [pid 5129] <... openat resumed>) = 6 [pid 5128] +++ exited with 0 +++ [pid 5127] close(5 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5131] <... openat resumed>) = 4 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5131] sendfile(4, 3, [118] [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5129] ioctl(6, LOOP_SET_FD, 5 [pid 5068] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5068] close(3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5068] <... close resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5132 [pid 5132] set_robust_list(0x555556beb660, 24) = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5133 attached [pid 5132] setpgid(0, 0 [pid 5129] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5133 [pid 5132] <... setpgid resumed>) = 0 [pid 5129] ioctl(6, LOOP_CLR_FD [pid 5133] set_robust_list(0x555556beb660, 24 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... ioctl resumed>) = 0 [pid 5133] <... set_robust_list resumed>) = 0 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] <... openat resumed>) = 3 [pid 5133] <... prctl resumed>) = 0 [pid 5132] write(3, "1000", 4 [pid 5133] setpgid(0, 0 [pid 5132] <... write resumed>) = 4 [pid 5129] ioctl(6, LOOP_SET_FD, 5 [pid 5133] <... setpgid resumed>) = 0 [pid 5132] close(3) = 0 [pid 5129] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5132] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5129] close(6 [pid 5132] <... openat resumed>) = 3 [pid 5129] <... close resumed>) = 0 [pid 5132] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5130] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5132] <... openat resumed>) = 4 [pid 5130] <... openat resumed>) = 5 [pid 5132] sendfile(4, 3, [118] [pid 5130] write(5, "t", 1 [pid 5129] close(5) = 0 [pid 5133] <... openat resumed>) = 3 [pid 5127] <... close resumed>) = 0 [pid 5133] write(3, "1000", 4) = 4 [pid 5133] close(3) = 0 [pid 5133] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5127] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5133] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5130] <... write resumed>) = 1 [pid 5127] <... openat resumed>) = 5 [pid 5130] exit_group(0 [pid 5133] <... openat resumed>) = 4 [pid 5130] <... exit_group resumed>) = ? [pid 5127] write(5, "t", 1 [pid 5133] sendfile(4, 3, [118] [pid 5130] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5134 [pid 5127] <... write resumed>) = 1 ./strace-static-x86_64: Process 5134 attached [pid 5134] set_robust_list(0x555556beb660, 24 [pid 5127] exit_group(0 [pid 5134] <... set_robust_list resumed>) = 0 [pid 5129] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5127] <... exit_group resumed>) = ? [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5134] setpgid(0, 0) = 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] write(3, "1000", 4) = 4 [pid 5134] close(3) = 0 [pid 5127] +++ exited with 0 +++ [pid 5134] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5129] <... openat resumed>) = 5 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5134] <... openat resumed>) = 3 [pid 5134] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5134] sendfile(4, 3, [118] [pid 5129] write(5, "t", 1 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5129] <... write resumed>) = 1 [pid 5065] <... openat resumed>) = 3 [pid 5129] exit_group(0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5129] <... exit_group resumed>) = ? [pid 5129] +++ exited with 0 +++ [pid 5065] <... ioctl resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5065] close(3) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached [pid 5074] <... openat resumed>) = 3 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5135 [pid 5135] set_robust_list(0x555556beb660, 24 [pid 5074] ioctl(3, LOOP_CLR_FD) = 0 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] close(3 [pid 5135] <... prctl resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5136 attached ) = 3 [pid 5135] write(3, "1000", 4 [pid 5136] set_robust_list(0x555556beb660, 24 [pid 5135] <... write resumed>) = 4 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5136 [pid 5135] close(3) = 0 [pid 5135] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5136] <... set_robust_list resumed>) = 0 [pid 5135] <... openat resumed>) = 3 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5135] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5135] sendfile(4, 3, [118] [pid 5136] <... prctl resumed>) = 0 [pid 5136] setpgid(0, 0) = 0 [ 65.198331][ T5133] syz-executor207 (5133): drop_caches: 1 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5136] write(3, "1000", 4) = 4 [pid 5136] close(3) = 0 [pid 5136] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5136] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 65.280693][ T5132] syz-executor207 (5132): drop_caches: 1 [ 65.281561][ T5131] syz-executor207 (5131): drop_caches: 1 [ 65.319441][ T5134] syz-executor207 (5134): drop_caches: 1 [pid 5136] sendfile(4, 3, [118] [pid 5133] <... sendfile resumed> => [671], 553) = 553 [ 65.407916][ T5135] syz-executor207 (5135): drop_caches: 1 [ 65.422487][ T5133] syz-executor207 (5133): drop_caches: 1 [pid 5133] memfd_create("syzkaller", 0) = 5 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5132] <... sendfile resumed> => [671], 553) = 553 [pid 5132] memfd_create("syzkaller", 0) = 5 [pid 5131] <... sendfile resumed> => [671], 553) = 553 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] memfd_create("syzkaller", 0 [pid 5132] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5131] <... memfd_create resumed>) = 5 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 65.456043][ T5136] syz-executor207 (5136): drop_caches: 1 [ 65.468745][ T5131] syz-executor207 (5131): drop_caches: 1 [ 65.477118][ T5132] syz-executor207 (5132): drop_caches: 1 [pid 5133] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5134] <... sendfile resumed> => [671], 553) = 553 [pid 5135] <... sendfile resumed> => [671], 553) = 553 [pid 5132] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5135] memfd_create("syzkaller", 0 [pid 5134] memfd_create("syzkaller", 0) = 5 [pid 5135] <... memfd_create resumed>) = 5 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5131] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5133] <... write resumed>) = 2097152 [pid 5132] <... write resumed>) = 2097152 [pid 5131] <... write resumed>) = 2097152 [pid 5133] munmap(0x7f5e41d3e000, 138412032) = 0 [ 65.516165][ T5134] syz-executor207 (5134): drop_caches: 1 [ 65.543629][ T5135] syz-executor207 (5135): drop_caches: 1 [pid 5134] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5136] <... sendfile resumed> => [671], 553) = 553 [pid 5135] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5133] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5132] munmap(0x7f5e41d3e000, 138412032 [pid 5131] munmap(0x7f5e41d3e000, 138412032 [pid 5134] <... write resumed>) = 2097152 [pid 5132] <... munmap resumed>) = 0 [pid 5134] munmap(0x7f5e41d3e000, 138412032 [pid 5136] memfd_create("syzkaller", 0 [pid 5135] <... write resumed>) = 2097152 [pid 5133] <... openat resumed>) = 6 [pid 5132] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5131] <... munmap resumed>) = 0 [pid 5135] munmap(0x7f5e41d3e000, 138412032 [pid 5136] <... memfd_create resumed>) = 5 [pid 5135] <... munmap resumed>) = 0 [pid 5134] <... munmap resumed>) = 0 [pid 5133] ioctl(6, LOOP_SET_FD, 5 [pid 5132] <... openat resumed>) = 6 [pid 5131] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5136] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5135] <... openat resumed>) = 6 [pid 5134] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5133] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] ioctl(6, LOOP_SET_FD, 5 [pid 5131] <... openat resumed>) = 6 [pid 5135] ioctl(6, LOOP_SET_FD, 5 [pid 5134] <... openat resumed>) = 6 [pid 5133] ioctl(6, LOOP_CLR_FD [pid 5132] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] ioctl(6, LOOP_SET_FD, 5 [pid 5135] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5135] ioctl(6, LOOP_CLR_FD [pid 5131] ioctl(6, LOOP_CLR_FD) = 0 [pid 5135] <... ioctl resumed>) = 0 [pid 5134] ioctl(6, LOOP_SET_FD, 5 [pid 5133] <... ioctl resumed>) = 0 [pid 5132] ioctl(6, LOOP_CLR_FD [pid 5134] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] <... ioctl resumed>) = 0 [pid 5134] ioctl(6, LOOP_CLR_FD) = 0 [pid 5131] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5135] ioctl(6, LOOP_SET_FD, 5 [ 65.594589][ T5136] syz-executor207 (5136): drop_caches: 1 [pid 5133] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5136] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5135] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] close(6 [pid 5132] ioctl(6, LOOP_SET_FD, 5 [pid 5131] close(6 [pid 5135] close(6 [pid 5134] ioctl(6, LOOP_SET_FD, 5 [pid 5133] <... close resumed>) = 0 [pid 5132] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... close resumed>) = 0 [pid 5134] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] close(5 [pid 5132] close(6 [pid 5131] close(5 [pid 5134] close(6 [pid 5135] <... close resumed>) = 0 [pid 5135] close(5 [pid 5134] <... close resumed>) = 0 [pid 5133] <... close resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5134] close(5 [pid 5132] close(5 [pid 5134] <... close resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5134] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5134] write(5, "t", 1 [pid 5136] <... write resumed>) = 2097152 [pid 5136] munmap(0x7f5e41d3e000, 138412032 [pid 5133] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5132] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5133] <... openat resumed>) = 5 [pid 5134] <... write resumed>) = 1 [pid 5135] <... close resumed>) = 0 [pid 5134] exit_group(0 [pid 5133] write(5, "t", 1 [pid 5132] <... openat resumed>) = 5 [pid 5136] <... munmap resumed>) = 0 [pid 5134] <... exit_group resumed>) = ? [pid 5135] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5132] write(5, "t", 1 [pid 5131] <... close resumed>) = 0 [pid 5136] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5135] <... openat resumed>) = 5 [pid 5131] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5135] write(5, "t", 1 [pid 5136] <... openat resumed>) = 6 [pid 5134] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5066] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5136] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5136] ioctl(6, LOOP_CLR_FD [pid 5066] <... openat resumed>) = 3 [pid 5136] <... ioctl resumed>) = 0 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5136] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5136] close(6) = 0 ./strace-static-x86_64: Process 5137 attached [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5137 [pid 5136] close(5 [pid 5137] set_robust_list(0x555556beb660, 24) = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0 [pid 5136] <... close resumed>) = 0 [pid 5133] <... write resumed>) = 1 [pid 5131] <... openat resumed>) = 5 [pid 5137] <... setpgid resumed>) = 0 [pid 5133] exit_group(0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5135] <... write resumed>) = 1 [pid 5133] <... exit_group resumed>) = ? [pid 5132] <... write resumed>) = 1 [pid 5131] write(5, "t", 1 [pid 5132] exit_group(0) = ? [pid 5137] <... openat resumed>) = 3 [pid 5135] exit_group(0 [pid 5137] write(3, "1000", 4 [pid 5135] <... exit_group resumed>) = ? [pid 5135] +++ exited with 0 +++ [pid 5132] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5137] <... write resumed>) = 4 [pid 5065] close(3 [pid 5137] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... close resumed>) = 0 [pid 5137] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5137] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5137] <... openat resumed>) = 3 [pid 5137] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5068] <... ioctl resumed>) = 0 [pid 5137] <... openat resumed>) = 4 [pid 5133] +++ exited with 0 +++ [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5138 [pid 5137] sendfile(4, 3, [118] [pid 5068] close(3 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5068] <... close resumed>) = 0 ./strace-static-x86_64: Process 5138 attached [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5138] set_robust_list(0x555556beb660, 24) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5139 [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5138] setpgid(0, 0) = 0 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5138] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5138] write(3, "1000", 4 [pid 5067] <... ioctl resumed>) = 0 [pid 5138] <... write resumed>) = 4 [pid 5067] close(3 [pid 5138] close(3 [pid 5067] <... close resumed>) = 0 [pid 5138] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5138] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5139 attached ) = 3 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5140 [pid 5139] set_robust_list(0x555556beb660, 24 [pid 5138] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5139] <... set_robust_list resumed>) = 0 [pid 5138] <... openat resumed>) = 4 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5138] sendfile(4, 3, [118] [pid 5136] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5139] <... prctl resumed>) = 0 [pid 5136] <... openat resumed>) = 5 [pid 5131] <... write resumed>) = 1 [pid 5139] setpgid(0, 0 [pid 5136] write(5, "t", 1 [pid 5131] exit_group(0 [pid 5139] <... setpgid resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5131] <... exit_group resumed>) = ? [pid 5139] <... openat resumed>) = 3 [pid 5139] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5140 attached [pid 5139] close(3 [pid 5136] <... write resumed>) = 1 [pid 5131] +++ exited with 0 +++ [pid 5140] set_robust_list(0x555556beb660, 24 [pid 5139] <... close resumed>) = 0 [pid 5136] exit_group(0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5140] <... set_robust_list resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5136] <... exit_group resumed>) = ? [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] <... openat resumed>) = 3 [pid 5136] +++ exited with 0 +++ [pid 5140] <... prctl resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5140] setpgid(0, 0 [pid 5139] <... openat resumed>) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5140] <... setpgid resumed>) = 0 [pid 5139] sendfile(4, 3, [118] [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... restart_syscall resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5140] <... openat resumed>) = 3 [pid 5140] write(3, "1000", 4 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5140] <... write resumed>) = 4 [pid 5069] <... ioctl resumed>) = 0 [pid 5140] close(3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] close(3 [pid 5140] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5140] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5074] close(3 [pid 5140] <... openat resumed>) = 4 [pid 5074] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5141 ./strace-static-x86_64: Process 5141 attached [pid 5140] sendfile(4, 3, [118] [pid 5141] set_robust_list(0x555556beb660, 24) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5142 attached [pid 5141] setpgid(0, 0) = 0 [pid 5142] set_robust_list(0x555556beb660, 24 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5142 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5141] <... openat resumed>) = 3 [pid 5142] setpgid(0, 0 [pid 5141] write(3, "1000", 4 [pid 5142] <... setpgid resumed>) = 0 [ 65.898660][ T5137] syz-executor207 (5137): drop_caches: 1 [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... write resumed>) = 4 [pid 5141] close(3 [pid 5142] <... openat resumed>) = 3 [pid 5141] <... close resumed>) = 0 [pid 5142] write(3, "1000", 4 [pid 5141] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5142] <... write resumed>) = 4 [pid 5141] <... openat resumed>) = 3 [pid 5142] close(3 [pid 5141] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5142] <... close resumed>) = 0 [pid 5142] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5142] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5141] <... openat resumed>) = 4 [pid 5142] <... openat resumed>) = 4 [pid 5141] sendfile(4, 3, [118] [pid 5142] sendfile(4, 3, [118] [pid 5137] <... sendfile resumed> => [671], 553) = 553 [pid 5137] memfd_create("syzkaller", 0) = 5 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 66.049232][ T5139] syz-executor207 (5139): drop_caches: 1 [ 66.058863][ T5137] syz-executor207 (5137): drop_caches: 1 [ 66.067742][ T5138] syz-executor207 (5138): drop_caches: 1 [ 66.078289][ T5140] syz-executor207 (5140): drop_caches: 1 [pid 5137] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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) = 2097152 [ 66.141953][ T5141] syz-executor207 (5141): drop_caches: 1 [pid 5137] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5137] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5137] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5137] ioctl(6, LOOP_CLR_FD) = 0 [pid 5137] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5137] close(6) = 0 [pid 5137] close(5) = 0 [ 66.206040][ T5142] syz-executor207 (5142): drop_caches: 1 [pid 5137] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5137] write(5, "t", 1 [pid 5138] <... sendfile resumed> => [671], 553) = 553 [pid 5138] memfd_create("syzkaller", 0 [pid 5140] <... sendfile resumed> => [671], 553) = 553 [pid 5138] <... memfd_create resumed>) = 5 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5137] <... write resumed>) = 1 [pid 5137] exit_group(0) = ? [pid 5137] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5140] memfd_create("syzkaller", 0 [pid 5139] <... sendfile resumed> => [671], 553) = 553 [pid 5066] <... restart_syscall resumed>) = 0 [pid 5140] <... memfd_create resumed>) = 5 [pid 5139] memfd_create("syzkaller", 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5066] <... openat resumed>) = 3 [ 66.271332][ T5138] syz-executor207 (5138): drop_caches: 1 [ 66.274084][ T5139] syz-executor207 (5139): drop_caches: 1 [ 66.279538][ T5140] syz-executor207 (5140): drop_caches: 1 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5141] <... sendfile resumed> => [671], 553) = 553 [pid 5139] <... memfd_create resumed>) = 5 [pid 5066] <... ioctl resumed>) = 0 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] close(3 [pid 5139] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5066] <... close resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] memfd_create("syzkaller", 0 [pid 5140] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5143 [pid 5141] <... memfd_create resumed>) = 5 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5138] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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./strace-static-x86_64: Process 5143 attached [pid 5141] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5140] <... write resumed>) = 2097152 [pid 5139] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5143] set_robust_list(0x555556beb660, 24) = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 66.336281][ T5141] syz-executor207 (5141): drop_caches: 1 [pid 5140] munmap(0x7f5e41d3e000, 138412032 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5143] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5143] sendfile(4, 3, [118] [pid 5140] <... munmap resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5141] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5140] <... openat resumed>) = 6 [pid 5139] <... write resumed>) = 2097152 [pid 5138] <... write resumed>) = 2097152 [pid 5142] <... sendfile resumed> => [671], 553) = 553 [pid 5142] memfd_create("syzkaller", 0 [pid 5140] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5142] <... memfd_create resumed>) = 5 [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5140] ioctl(6, LOOP_CLR_FD [pid 5138] munmap(0x7f5e41d3e000, 138412032 [pid 5140] <... ioctl resumed>) = 0 [pid 5139] munmap(0x7f5e41d3e000, 138412032 [pid 5140] ioctl(6, LOOP_SET_FD, 5 [pid 5138] <... munmap resumed>) = 0 [pid 5140] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5140] close(6) = 0 [pid 5139] <... munmap resumed>) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5140] close(5 [pid 5138] <... openat resumed>) = 6 [pid 5138] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [ 66.395969][ T5142] syz-executor207 (5142): drop_caches: 1 [pid 5139] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5138] ioctl(6, LOOP_CLR_FD) = 0 [pid 5139] <... openat resumed>) = 6 [pid 5139] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5139] ioctl(6, LOOP_CLR_FD) = 0 [pid 5138] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5138] close(6) = 0 [pid 5139] ioctl(6, LOOP_SET_FD, 5 [pid 5138] close(5 [pid 5139] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5139] close(6 [pid 5141] <... write resumed>) = 2097152 [pid 5139] <... close resumed>) = 0 [pid 5141] munmap(0x7f5e41d3e000, 138412032 [pid 5139] close(5 [pid 5141] <... munmap resumed>) = 0 [pid 5140] <... close resumed>) = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5140] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5138] <... close resumed>) = 0 [pid 5141] <... openat resumed>) = 6 [pid 5140] <... openat resumed>) = 5 [pid 5141] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5140] write(5, "t", 1 [pid 5138] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5141] ioctl(6, LOOP_CLR_FD) = 0 [pid 5138] <... openat resumed>) = 5 [pid 5138] write(5, "t", 1 [pid 5139] <... close resumed>) = 0 [pid 5141] ioctl(6, LOOP_SET_FD, 5 [pid 5139] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5141] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5140] <... write resumed>) = 1 [pid 5138] <... write resumed>) = 1 [pid 5140] exit_group(0 [pid 5141] close(6 [pid 5140] <... exit_group resumed>) = ? [pid 5139] <... openat resumed>) = 5 [pid 5138] exit_group(0 [pid 5141] <... close resumed>) = 0 [pid 5138] <... exit_group resumed>) = ? [pid 5142] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5140] +++ exited with 0 +++ [pid 5139] write(5, "t", 1 [pid 5138] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5067] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5141] close(5 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5065] <... openat resumed>) = 3 [pid 5067] <... ioctl resumed>) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5067] close(3) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5145 ./strace-static-x86_64: Process 5145 attached ./strace-static-x86_64: Process 5144 attached [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5144 [pid 5144] set_robust_list(0x555556beb660, 24 [pid 5139] <... write resumed>) = 1 [pid 5145] set_robust_list(0x555556beb660, 24 [pid 5144] <... set_robust_list resumed>) = 0 [pid 5139] exit_group(0 [pid 5145] <... set_robust_list resumed>) = 0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5145] setpgid(0, 0) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] <... close resumed>) = 0 [pid 5139] <... exit_group resumed>) = ? [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5145] write(3, "1000", 4) = 4 [pid 5145] close(3) = 0 [pid 5145] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5144] <... prctl resumed>) = 0 [pid 5139] +++ exited with 0 +++ [pid 5145] <... openat resumed>) = 3 [pid 5145] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5144] setpgid(0, 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5145] <... openat resumed>) = 4 [pid 5144] <... setpgid resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5142] <... write resumed>) = 2097152 [pid 5141] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5068] <... close resumed>) = 0 [pid 5145] sendfile(4, 3, [118] [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5146 attached [pid 5144] <... openat resumed>) = 3 [pid 5141] <... openat resumed>) = 5 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5146 [pid 5144] write(3, "1000", 4 [pid 5141] write(5, "t", 1 [pid 5144] <... write resumed>) = 4 [pid 5146] set_robust_list(0x555556beb660, 24 [pid 5144] close(3 [pid 5146] <... set_robust_list resumed>) = 0 [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5144] <... close resumed>) = 0 [pid 5142] munmap(0x7f5e41d3e000, 138412032 [pid 5144] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5146] <... prctl resumed>) = 0 [pid 5141] <... write resumed>) = 1 [pid 5144] <... openat resumed>) = 3 [pid 5146] setpgid(0, 0) = 0 [pid 5144] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5141] exit_group(0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... exit_group resumed>) = ? [pid 5144] <... openat resumed>) = 4 [pid 5146] <... openat resumed>) = 3 [pid 5144] sendfile(4, 3, [118] [pid 5142] <... munmap resumed>) = 0 [pid 5141] +++ exited with 0 +++ [pid 5146] write(3, "1000", 4 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5146] <... write resumed>) = 4 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5147 [pid 5142] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5142] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5142] ioctl(6, LOOP_CLR_FD) = 0 [pid 5146] <... close resumed>) = 0 [pid 5142] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5142] close(6) = 0 [pid 5142] close(5./strace-static-x86_64: Process 5147 attached [pid 5146] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5142] <... close resumed>) = 0 [pid 5142] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5142] write(5, "t", 1 [pid 5146] <... openat resumed>) = 3 [pid 5147] set_robust_list(0x555556beb660, 24 [pid 5146] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5147] <... set_robust_list resumed>) = 0 [pid 5146] <... openat resumed>) = 4 [pid 5146] sendfile(4, 3, [118] [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5142] <... write resumed>) = 1 [pid 5142] exit_group(0) = ? [pid 5147] setpgid(0, 0 [pid 5142] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5147] <... setpgid resumed>) = 0 [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = 0 [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5148 attached [pid 5147] write(3, "1000", 4 [pid 5148] set_robust_list(0x555556beb660, 24 [pid 5147] <... write resumed>) = 4 [pid 5148] <... set_robust_list resumed>) = 0 [pid 5147] close(3 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5147] <... close resumed>) = 0 [pid 5148] <... prctl resumed>) = 0 [pid 5148] setpgid(0, 0 [pid 5147] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5148] <... setpgid resumed>) = 0 [pid 5147] <... openat resumed>) = 3 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5148 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5147] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5148] <... openat resumed>) = 3 [pid 5148] write(3, "1000", 4 [pid 5147] <... openat resumed>) = 4 [pid 5148] <... write resumed>) = 4 [pid 5148] close(3) = 0 [pid 5148] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5148] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5148] sendfile(4, 3, [118] [ 66.702914][ T5143] syz-executor207 (5143): drop_caches: 1 [ 66.788123][ T5145] syz-executor207 (5145): drop_caches: 1 [ 66.801823][ T5144] syz-executor207 (5144): drop_caches: 1 [ 66.844213][ T5146] syz-executor207 (5146): drop_caches: 1 [ 66.851363][ T5147] syz-executor207 (5147): drop_caches: 1 [ 66.852873][ T5148] syz-executor207 (5148): drop_caches: 1 [pid 5147] sendfile(4, 3, [118] [pid 5143] <... sendfile resumed> => [671], 553) = 553 [pid 5143] memfd_create("syzkaller", 0) = 5 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 66.897470][ T5143] syz-executor207 (5143): drop_caches: 1 [pid 5143] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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) = 2097152 [pid 5144] <... sendfile resumed> => [671], 553) = 553 [pid 5145] <... sendfile resumed> => [671], 553) = 553 [pid 5147] <... sendfile resumed> => [671], 553) = 553 [pid 5144] memfd_create("syzkaller", 0 [ 66.981778][ T5145] syz-executor207 (5145): drop_caches: 1 [ 67.000741][ T5144] syz-executor207 (5144): drop_caches: 1 [ 67.015924][ T5148] syz-executor207 (5148): drop_caches: 1 [ 67.015934][ T5147] syz-executor207 (5147): drop_caches: 1 [pid 5143] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5148] <... sendfile resumed> => [671], 553) = 553 [pid 5147] memfd_create("syzkaller", 0 [pid 5146] <... sendfile resumed> => [671], 553) = 553 [pid 5145] memfd_create("syzkaller", 0 [pid 5144] <... memfd_create resumed>) = 5 [pid 5143] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5145] <... memfd_create resumed>) = 5 [pid 5146] memfd_create("syzkaller", 0 [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5143] <... openat resumed>) = 6 [pid 5145] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5143] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5143] ioctl(6, LOOP_CLR_FD [pid 5146] <... memfd_create resumed>) = 5 [pid 5148] memfd_create("syzkaller", 0 [pid 5147] <... memfd_create resumed>) = 5 [pid 5145] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5144] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5143] <... ioctl resumed>) = 0 [pid 5148] <... memfd_create resumed>) = 5 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5143] ioctl(6, LOOP_SET_FD, 5 [pid 5147] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5143] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5143] close(6 [pid 5146] <... mmap resumed>) = 0x7f5e41d3e000 [ 67.021884][ T5146] syz-executor207 (5146): drop_caches: 1 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5145] <... write resumed>) = 2097152 [pid 5143] <... close resumed>) = 0 [pid 5143] close(5 [pid 5148] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5145] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5144] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5145] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5143] <... close resumed>) = 0 [pid 5145] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5147] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5143] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5145] ioctl(6, LOOP_CLR_FD) = 0 [pid 5148] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5146] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5144] <... write resumed>) = 2097152 [pid 5143] <... openat resumed>) = 5 [pid 5145] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5143] write(5, "t", 1 [pid 5145] close(6) = 0 [pid 5145] close(5 [pid 5147] <... write resumed>) = 2097152 [pid 5144] munmap(0x7f5e41d3e000, 138412032 [pid 5143] <... write resumed>) = 1 [pid 5143] exit_group(0) = ? [pid 5143] +++ exited with 0 +++ [pid 5147] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5144] <... munmap resumed>) = 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5147] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5148] <... write resumed>) = 2097152 [pid 5146] <... write resumed>) = 2097152 [pid 5145] <... close resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5147] <... openat resumed>) = 6 [pid 5145] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5147] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5147] ioctl(6, LOOP_CLR_FD) = 0 [pid 5148] munmap(0x7f5e41d3e000, 138412032 [pid 5146] munmap(0x7f5e41d3e000, 138412032 [pid 5144] <... openat resumed>) = 6 [pid 5145] <... openat resumed>) = 5 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5147] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5147] close(6) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5147] close(5 [pid 5066] close(3) = 0 [pid 5145] write(5, "t", 1 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5149 attached [pid 5149] set_robust_list(0x555556beb660, 24 [pid 5148] <... munmap resumed>) = 0 [pid 5145] <... write resumed>) = 1 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5149 [pid 5149] <... set_robust_list resumed>) = 0 [pid 5144] ioctl(6, LOOP_SET_FD, 5 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5144] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] <... prctl resumed>) = 0 [pid 5145] exit_group(0 [pid 5149] setpgid(0, 0 [pid 5144] ioctl(6, LOOP_CLR_FD [pid 5145] <... exit_group resumed>) = ? [pid 5149] <... setpgid resumed>) = 0 [pid 5144] <... ioctl resumed>) = 0 [pid 5144] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5144] close(6) = 0 [pid 5144] close(5 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5149] <... openat resumed>) = 3 [pid 5148] <... openat resumed>) = 6 [pid 5147] <... close resumed>) = 0 [pid 5149] write(3, "1000", 4 [pid 5148] ioctl(6, LOOP_SET_FD, 5 [pid 5149] <... write resumed>) = 4 [pid 5148] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] close(3) = 0 [pid 5148] ioctl(6, LOOP_CLR_FD) = 0 [pid 5146] <... munmap resumed>) = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5146] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5146] ioctl(6, LOOP_CLR_FD) = 0 [pid 5147] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5147] write(5, "t", 1 [pid 5148] ioctl(6, LOOP_SET_FD, 5 [pid 5146] ioctl(6, LOOP_SET_FD, 5 [pid 5145] +++ exited with 0 +++ [pid 5149] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5148] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5148] close(6 [pid 5146] close(6 [pid 5149] <... openat resumed>) = 3 [pid 5148] <... close resumed>) = 0 [pid 5146] <... close resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5148] close(5 [pid 5146] close(5 [pid 5149] <... openat resumed>) = 4 [pid 5065] <... openat resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5149] sendfile(4, 3, [118] [pid 5148] <... close resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5065] close(3 [pid 5144] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5144] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5144] write(5, "t", 1 [pid 5147] <... write resumed>) = 1 [pid 5147] exit_group(0) = ? [pid 5147] +++ exited with 0 +++ [pid 5144] <... write resumed>) = 1 [pid 5144] exit_group(0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5144] <... exit_group resumed>) = ? [pid 5144] +++ exited with 0 +++ [pid 5148] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5148] write(5, "t", 1 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5150 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- ./strace-static-x86_64: Process 5150 attached [pid 5146] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5150] set_robust_list(0x555556beb660, 24 [pid 5146] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5146] write(5, "t", 1 [pid 5069] <... ioctl resumed>) = 0 [pid 5069] close(3 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5150] setpgid(0, 0 [pid 5069] <... close resumed>) = 0 [pid 5150] <... setpgid resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5148] <... write resumed>) = 1 [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] exit_group(0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5148] <... exit_group resumed>) = ? [pid 5150] <... openat resumed>) = 3 [pid 5067] <... ioctl resumed>) = 0 [pid 5150] write(3, "1000", 4 [pid 5148] +++ exited with 0 +++ [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5151 [pid 5067] close(3 [pid 5150] <... write resumed>) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5067] <... close resumed>) = 0 [pid 5150] close(3 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5150] <... close resumed>) = 0 [pid 5150] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5152 attached [pid 5152] set_robust_list(0x555556beb660, 24) = 0 [pid 5150] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5150] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5074] <... openat resumed>) = 3 [pid 5150] <... openat resumed>) = 4 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5150] sendfile(4, 3, [118] [pid 5074] <... ioctl resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5152 [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] setpgid(0, 0 [pid 5074] close(3 [pid 5152] <... setpgid resumed>) = 0 [pid 5146] <... write resumed>) = 1 [pid 5074] <... close resumed>) = 0 [pid 5146] exit_group(0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5153 attached [pid 5146] <... exit_group resumed>) = ? [pid 5146] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5153] set_robust_list(0x555556beb660, 24) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... ioctl resumed>) = 0 [pid 5153] <... prctl resumed>) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] setpgid(0, 0./strace-static-x86_64: Process 5151 attached ) = 0 ./strace-static-x86_64: Process 5154 attached [pid 5154] set_robust_list(0x555556beb660, 24 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] <... openat resumed>) = 3 [pid 5151] set_robust_list(0x555556beb660, 24 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5153 [pid 5154] <... set_robust_list resumed>) = 0 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... set_robust_list resumed>) = 0 [pid 5154] <... prctl resumed>) = 0 [pid 5153] <... openat resumed>) = 3 [pid 5154] setpgid(0, 0) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] write(3, "1000", 4 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5154] <... openat resumed>) = 3 [pid 5154] write(3, "1000", 4) = 4 [pid 5154] close(3 [pid 5153] write(3, "1000", 4 [pid 5152] <... write resumed>) = 4 [pid 5151] <... prctl resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5154 [pid 5151] setpgid(0, 0 [pid 5154] <... close resumed>) = 0 [pid 5152] close(3 [pid 5151] <... setpgid resumed>) = 0 [pid 5154] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5154] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] <... close resumed>) = 0 [pid 5154] <... openat resumed>) = 4 [pid 5152] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5154] sendfile(4, 3, [118] [pid 5151] <... openat resumed>) = 3 [pid 5153] <... write resumed>) = 4 [pid 5152] <... openat resumed>) = 3 [pid 5153] close(3 [pid 5152] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5153] <... close resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5151] write(3, "1000", 4) = 4 [pid 5151] close(3) = 0 [pid 5151] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5152] <... openat resumed>) = 4 [pid 5151] <... openat resumed>) = 3 [pid 5152] sendfile(4, 3, [118] [pid 5151] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5153] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5151] <... openat resumed>) = 4 [pid 5151] sendfile(4, 3, [118] [pid 5153] <... openat resumed>) = 4 [ 67.416014][ T5150] syz-executor207 (5150): drop_caches: 1 [ 67.483207][ T5154] syz-executor207 (5154): drop_caches: 1 [ 67.503669][ T5149] syz-executor207 (5149): drop_caches: 1 [pid 5153] sendfile(4, 3, [118] [pid 5150] <... sendfile resumed> => [671], 553) = 553 [pid 5150] memfd_create("syzkaller", 0) = 5 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 67.566125][ T5151] syz-executor207 (5151): drop_caches: 1 [ 67.573567][ T5152] syz-executor207 (5152): drop_caches: 1 [ 67.592937][ T5150] syz-executor207 (5150): drop_caches: 1 [ 67.602965][ T5153] syz-executor207 (5153): drop_caches: 1 [pid 5150] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5154] <... sendfile resumed> => [671], 553) = 553 [pid 5150] <... write resumed>) = 2097152 [pid 5149] <... sendfile resumed> => [671], 553) = 553 [pid 5149] memfd_create("syzkaller", 0) = 5 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5150] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5154] memfd_create("syzkaller", 0) = 5 [pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5150] <... openat resumed>) = 6 [pid 5154] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5150] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5150] ioctl(6, LOOP_CLR_FD) = 0 [pid 5150] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [ 67.674375][ T5149] syz-executor207 (5149): drop_caches: 1 [ 67.683517][ T5154] syz-executor207 (5154): drop_caches: 1 [pid 5150] close(6) = 0 [pid 5150] close(5) = 0 [pid 5150] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5149] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5150] <... openat resumed>) = 5 [pid 5150] write(5, "t", 1 [pid 5152] <... sendfile resumed> => [671], 553) = 553 [pid 5150] <... write resumed>) = 1 [pid 5150] exit_group(0) = ? [pid 5152] memfd_create("syzkaller", 0 [pid 5151] <... sendfile resumed> => [671], 553) = 553 [pid 5150] +++ exited with 0 +++ [pid 5152] <... memfd_create resumed>) = 5 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5151] memfd_create("syzkaller", 0 [pid 5152] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5149] <... write resumed>) = 2097152 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5155 ./strace-static-x86_64: Process 5155 attached [pid 5155] set_robust_list(0x555556beb660, 24 [pid 5151] <... memfd_create resumed>) = 5 [pid 5155] <... set_robust_list resumed>) = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5155] setpgid(0, 0 [pid 5151] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5155] <... setpgid resumed>) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] write(3, "1000", 4) = 4 [pid 5155] close(3) = 0 [pid 5155] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5155] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 67.744413][ T5152] syz-executor207 (5152): drop_caches: 1 [ 67.755261][ T5151] syz-executor207 (5151): drop_caches: 1 [pid 5155] sendfile(4, 3, [118] [pid 5153] <... sendfile resumed> => [671], 553) = 553 [pid 5154] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5152] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5149] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5149] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5149] ioctl(6, LOOP_CLR_FD [pid 5153] memfd_create("syzkaller", 0 [pid 5149] <... ioctl resumed>) = 0 [pid 5151] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5152] <... write resumed>) = 2097152 [pid 5153] <... memfd_create resumed>) = 5 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5154] <... write resumed>) = 2097152 [pid 5152] munmap(0x7f5e41d3e000, 138412032 [pid 5151] <... write resumed>) = 2097152 [pid 5149] ioctl(6, LOOP_SET_FD, 5 [pid 5154] munmap(0x7f5e41d3e000, 138412032 [pid 5149] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [ 67.803398][ T5153] syz-executor207 (5153): drop_caches: 1 [pid 5154] <... munmap resumed>) = 0 [pid 5149] close(6) = 0 [pid 5151] munmap(0x7f5e41d3e000, 138412032 [pid 5149] close(5 [pid 5151] <... munmap resumed>) = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5153] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5152] <... munmap resumed>) = 0 [pid 5154] <... openat resumed>) = 6 [pid 5152] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5151] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5149] <... close resumed>) = 0 [pid 5154] ioctl(6, LOOP_SET_FD, 5 [pid 5152] <... openat resumed>) = 6 [pid 5151] <... openat resumed>) = 6 [pid 5154] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] ioctl(6, LOOP_SET_FD, 5 [pid 5151] ioctl(6, LOOP_SET_FD, 5 [pid 5154] ioctl(6, LOOP_CLR_FD [pid 5152] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] ioctl(6, LOOP_CLR_FD [pid 5152] ioctl(6, LOOP_CLR_FD [pid 5154] <... ioctl resumed>) = 0 [pid 5152] <... ioctl resumed>) = 0 [pid 5151] <... ioctl resumed>) = 0 [pid 5152] ioctl(6, LOOP_SET_FD, 5 [pid 5151] ioctl(6, LOOP_SET_FD, 5 [pid 5152] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5154] ioctl(6, LOOP_SET_FD, 5 [pid 5152] close(6 [pid 5151] close(6 [pid 5154] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] <... close resumed>) = 0 [pid 5151] <... close resumed>) = 0 [pid 5149] <... openat resumed>) = 5 [pid 5154] close(6 [pid 5152] close(5 [pid 5151] close(5 [pid 5154] <... close resumed>) = 0 [pid 5149] write(5, "t", 1 [pid 5154] close(5 [pid 5152] <... close resumed>) = 0 [pid 5149] <... write resumed>) = 1 [pid 5153] <... write resumed>) = 2097152 [pid 5149] exit_group(0) = ? [pid 5153] munmap(0x7f5e41d3e000, 138412032 [pid 5149] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5153] <... munmap resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5153] <... openat resumed>) = 6 [pid 5152] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5156 attached [pid 5156] set_robust_list(0x555556beb660, 24 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5156 [pid 5156] <... set_robust_list resumed>) = 0 [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] ioctl(6, LOOP_SET_FD, 5 [pid 5152] <... openat resumed>) = 5 [pid 5156] setpgid(0, 0 [pid 5153] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] write(5, "t", 1 [pid 5151] <... close resumed>) = 0 [pid 5156] <... setpgid resumed>) = 0 [pid 5154] <... close resumed>) = 0 [pid 5153] ioctl(6, LOOP_CLR_FD [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5153] <... ioctl resumed>) = 0 [pid 5156] <... openat resumed>) = 3 [pid 5156] write(3, "1000", 4) = 4 [pid 5156] close(3) = 0 [pid 5156] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5154] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5156] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5153] ioctl(6, LOOP_SET_FD, 5 [pid 5156] <... openat resumed>) = 4 [pid 5154] <... openat resumed>) = 5 [pid 5153] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5156] sendfile(4, 3, [118] [pid 5154] write(5, "t", 1 [pid 5153] close(6 [pid 5151] <... openat resumed>) = 5 [pid 5153] <... close resumed>) = 0 [pid 5151] write(5, "t", 1 [pid 5153] close(5 [pid 5154] <... write resumed>) = 1 [pid 5153] <... close resumed>) = 0 [pid 5152] <... write resumed>) = 1 [pid 5154] exit_group(0 [pid 5153] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5152] exit_group(0 [pid 5154] <... exit_group resumed>) = ? [pid 5153] <... openat resumed>) = 5 [pid 5152] <... exit_group resumed>) = ? [pid 5151] <... write resumed>) = 1 [pid 5151] exit_group(0) = ? [pid 5153] write(5, "t", 1 [pid 5152] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached , child_tidptr=0x555556beb650) = 5157 [pid 5157] set_robust_list(0x555556beb660, 24) = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5157] setpgid(0, 0) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5153] <... write resumed>) = 1 [pid 5157] <... openat resumed>) = 3 [pid 5153] exit_group(0 [pid 5157] write(3, "1000", 4 [pid 5153] <... exit_group resumed>) = ? [pid 5157] <... write resumed>) = 4 [pid 5153] +++ exited with 0 +++ [pid 5157] close(3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5157] <... close resumed>) = 0 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5157] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5151] +++ exited with 0 +++ [ 67.959129][ T5155] syz-executor207 (5155): drop_caches: 1 [pid 5157] <... openat resumed>) = 4 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5154] +++ exited with 0 +++ [pid 5074] <... openat resumed>) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5074] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5157] sendfile(4, 3, [118] [pid 5074] close(3 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] close(3./strace-static-x86_64: Process 5158 attached ) = 0 [pid 5158] set_robust_list(0x555556beb660, 24 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5158] <... set_robust_list resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5159 attached [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... ioctl resumed>) = 0 [pid 5068] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5159 [pid 5068] <... close resumed>) = 0 [pid 5158] <... prctl resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5158] setpgid(0, 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5158 ./strace-static-x86_64: Process 5160 attached [pid 5159] set_robust_list(0x555556beb660, 24 [pid 5158] <... setpgid resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5160 [pid 5159] <... set_robust_list resumed>) = 0 [pid 5160] set_robust_list(0x555556beb660, 24 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5158] <... openat resumed>) = 3 [pid 5160] <... set_robust_list resumed>) = 0 [pid 5159] <... prctl resumed>) = 0 [pid 5159] setpgid(0, 0) = 0 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5160] setpgid(0, 0 [pid 5159] <... openat resumed>) = 3 [pid 5158] write(3, "1000", 4 [pid 5159] write(3, "1000", 4 [pid 5158] <... write resumed>) = 4 [pid 5160] <... setpgid resumed>) = 0 [pid 5159] <... write resumed>) = 4 [pid 5159] close(3 [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5158] close(3 [pid 5159] <... close resumed>) = 0 [pid 5158] <... close resumed>) = 0 [pid 5159] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5160] <... openat resumed>) = 3 [pid 5159] <... openat resumed>) = 3 [pid 5158] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5159] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5158] <... openat resumed>) = 3 [pid 5160] write(3, "1000", 4 [pid 5159] <... openat resumed>) = 4 [pid 5158] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5155] <... sendfile resumed> => [671], 553) = 553 [pid 5160] <... write resumed>) = 4 [pid 5159] sendfile(4, 3, [118] [pid 5158] <... openat resumed>) = 4 [pid 5158] sendfile(4, 3, [118] [pid 5155] memfd_create("syzkaller", 0 [pid 5160] close(3 [pid 5155] <... memfd_create resumed>) = 5 [pid 5160] <... close resumed>) = 0 [pid 5160] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5160] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5160] sendfile(4, 3, [118] [pid 5155] <... mmap resumed>) = 0x7f5e41d3e000 [ 68.083152][ T5155] syz-executor207 (5155): drop_caches: 1 [pid 5155] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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) = 2097152 [pid 5155] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5155] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5155] ioctl(6, LOOP_CLR_FD) = 0 [pid 5155] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5155] close(6) = 0 [ 68.267765][ T5156] syz-executor207 (5156): drop_caches: 1 [ 68.284667][ T5157] syz-executor207 (5157): drop_caches: 1 [pid 5155] close(5) = 0 [pid 5155] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [ 68.319696][ T5160] syz-executor207 (5160): drop_caches: 1 [ 68.323248][ T5159] syz-executor207 (5159): drop_caches: 1 [ 68.336513][ T5158] syz-executor207 (5158): drop_caches: 1 [pid 5155] write(5, "t", 1) = 1 [pid 5155] exit_group(0) = ? [pid 5155] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5161 ./strace-static-x86_64: Process 5161 attached [pid 5161] set_robust_list(0x555556beb660, 24) = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5161] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5161] sendfile(4, 3, [118] [pid 5158] <... sendfile resumed> => [671], 553) = 553 [pid 5157] <... sendfile resumed> => [671], 553) = 553 [pid 5157] memfd_create("syzkaller", 0 [pid 5158] memfd_create("syzkaller", 0 [pid 5157] <... memfd_create resumed>) = 5 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 68.482928][ T5157] syz-executor207 (5157): drop_caches: 1 [ 68.485171][ T5156] syz-executor207 (5156): drop_caches: 1 [ 68.494296][ T5158] syz-executor207 (5158): drop_caches: 1 [pid 5156] <... sendfile resumed> => [671], 553) = 553 [pid 5158] <... memfd_create resumed>) = 5 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5156] memfd_create("syzkaller", 0 [pid 5159] <... sendfile resumed> => [671], 553) = 553 [pid 5156] <... memfd_create resumed>) = 5 [pid 5160] <... sendfile resumed> => [671], 553) = 553 [pid 5160] memfd_create("syzkaller", 0 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5160] <... memfd_create resumed>) = 5 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5160] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5159] memfd_create("syzkaller", 0 [pid 5158] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5157] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5156] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5159] <... memfd_create resumed>) = 5 [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 68.526292][ T5160] syz-executor207 (5160): drop_caches: 1 [ 68.543298][ T5159] syz-executor207 (5159): drop_caches: 1 [ 68.546696][ T5161] syz-executor207 (5161): drop_caches: 1 [pid 5160] <... write resumed>) = 2097152 [pid 5159] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5158] <... write resumed>) = 2097152 [pid 5157] <... write resumed>) = 2097152 [pid 5160] munmap(0x7f5e41d3e000, 138412032 [pid 5158] munmap(0x7f5e41d3e000, 138412032 [pid 5160] <... munmap resumed>) = 0 [pid 5158] <... munmap resumed>) = 0 [pid 5157] munmap(0x7f5e41d3e000, 138412032 [pid 5156] <... write resumed>) = 2097152 [pid 5156] munmap(0x7f5e41d3e000, 138412032 [pid 5160] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5160] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5160] ioctl(6, LOOP_CLR_FD) = 0 [pid 5160] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5160] close(6) = 0 [pid 5156] <... munmap resumed>) = 0 [pid 5160] close(5 [pid 5158] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5157] <... munmap resumed>) = 0 [pid 5156] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5157] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5158] <... openat resumed>) = 6 [pid 5157] <... openat resumed>) = 6 [pid 5156] <... openat resumed>) = 6 [pid 5158] ioctl(6, LOOP_SET_FD, 5 [pid 5157] ioctl(6, LOOP_SET_FD, 5 [pid 5156] ioctl(6, LOOP_SET_FD, 5 [pid 5157] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5157] ioctl(6, LOOP_CLR_FD [pid 5156] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5158] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] ioctl(6, LOOP_CLR_FD [pid 5157] <... ioctl resumed>) = 0 [pid 5158] ioctl(6, LOOP_CLR_FD [pid 5156] <... ioctl resumed>) = 0 [pid 5158] <... ioctl resumed>) = 0 [pid 5159] <... write resumed>) = 2097152 [pid 5156] ioctl(6, LOOP_SET_FD, 5 [pid 5158] ioctl(6, LOOP_SET_FD, 5 [pid 5157] ioctl(6, LOOP_SET_FD, 5 [pid 5158] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5157] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5158] close(6 [pid 5159] munmap(0x7f5e41d3e000, 138412032 [pid 5158] <... close resumed>) = 0 [pid 5157] close(6 [pid 5156] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5158] close(5 [pid 5157] <... close resumed>) = 0 [pid 5156] close(6 [pid 5157] close(5 [pid 5156] <... close resumed>) = 0 [pid 5156] close(5 [pid 5160] <... close resumed>) = 0 [pid 5159] <... munmap resumed>) = 0 [pid 5158] <... close resumed>) = 0 [pid 5158] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5159] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5158] <... openat resumed>) = 5 [pid 5159] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5159] ioctl(6, LOOP_CLR_FD) = 0 [pid 5157] <... close resumed>) = 0 [pid 5159] ioctl(6, LOOP_SET_FD, 5 [pid 5158] write(5, "t", 1 [pid 5157] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5156] <... close resumed>) = 0 [pid 5160] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5160] write(5, "t", 1 [pid 5159] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5159] close(6 [pid 5157] <... openat resumed>) = 5 [pid 5159] <... close resumed>) = 0 [pid 5157] write(5, "t", 1 [pid 5156] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5156] write(5, "t", 1 [pid 5159] close(5 [pid 5160] <... write resumed>) = 1 [pid 5160] exit_group(0 [pid 5158] <... write resumed>) = 1 [pid 5160] <... exit_group resumed>) = ? [pid 5160] +++ exited with 0 +++ [pid 5158] exit_group(0 [pid 5157] <... write resumed>) = 1 [pid 5156] <... write resumed>) = 1 [pid 5158] <... exit_group resumed>) = ? [pid 5157] exit_group(0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5156] exit_group(0 [pid 5158] +++ exited with 0 +++ [pid 5157] <... exit_group resumed>) = ? [pid 5156] <... exit_group resumed>) = ? [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5156] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5066] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5068] <... openat resumed>) = 3 [pid 5066] <... ioctl resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5066] close(3) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5068] close(3 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5162 attached [pid 5159] <... close resumed>) = 0 [pid 5157] +++ exited with 0 +++ [pid 5068] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5162] set_robust_list(0x555556beb660, 24 [pid 5161] <... sendfile resumed> => [671], 553) = 553 [pid 5159] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5074] <... openat resumed>) = 3 [pid 5162] <... set_robust_list resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5163 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5164 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5162 [pid 5074] <... ioctl resumed>) = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] close(3 [pid 5162] <... prctl resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5162] setpgid(0, 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5159] <... openat resumed>) = 5 [pid 5162] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5164 attached ./strace-static-x86_64: Process 5163 attached [pid 5163] set_robust_list(0x555556beb660, 24 [pid 5159] write(5, "t", 1 [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5164] set_robust_list(0x555556beb660, 24) = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5163] <... set_robust_list resumed>) = 0 [pid 5162] <... openat resumed>) = 3 [pid 5161] memfd_create("syzkaller", 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5165 [pid 5164] <... prctl resumed>) = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5162] write(3, "1000", 4 [pid 5161] <... memfd_create resumed>) = 5 [pid 5164] setpgid(0, 0 [pid 5162] <... write resumed>) = 4 [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5164] <... setpgid resumed>) = 0 [pid 5163] <... prctl resumed>) = 0 [pid 5162] close(3 [pid 5161] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5162] <... close resumed>) = 0 ./strace-static-x86_64: Process 5165 attached [pid 5163] setpgid(0, 0 [pid 5162] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5165] set_robust_list(0x555556beb660, 24 [pid 5163] <... setpgid resumed>) = 0 [pid 5165] <... set_robust_list resumed>) = 0 [pid 5164] <... openat resumed>) = 3 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5162] <... openat resumed>) = 3 [pid 5159] <... write resumed>) = 1 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5162] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5159] exit_group(0 [pid 5165] <... prctl resumed>) = 0 [pid 5164] write(3, "1000", 4 [pid 5159] <... exit_group resumed>) = ? [pid 5165] setpgid(0, 0 [pid 5164] <... write resumed>) = 4 [pid 5165] <... setpgid resumed>) = 0 [pid 5163] <... openat resumed>) = 3 [ 68.698914][ T5161] syz-executor207 (5161): drop_caches: 1 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5162] <... openat resumed>) = 4 [pid 5165] <... openat resumed>) = 3 [pid 5164] close(3 [pid 5159] +++ exited with 0 +++ [pid 5165] write(3, "1000", 4 [pid 5164] <... close resumed>) = 0 [pid 5163] write(3, "1000", 4 [pid 5162] sendfile(4, 3, [118] [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5165] <... write resumed>) = 4 [pid 5164] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5163] <... write resumed>) = 4 [pid 5165] close(3 [pid 5163] close(3 [pid 5165] <... close resumed>) = 0 [pid 5163] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5165] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5163] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5069] <... openat resumed>) = 3 [pid 5165] <... openat resumed>) = 3 [pid 5163] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5165] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5163] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5069] <... ioctl resumed>) = 0 [pid 5165] <... openat resumed>) = 4 [pid 5164] <... openat resumed>) = 3 [pid 5163] <... openat resumed>) = 4 [pid 5069] close(3 [pid 5165] sendfile(4, 3, [118] [pid 5164] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5163] sendfile(4, 3, [118] [pid 5069] <... close resumed>) = 0 [pid 5164] <... openat resumed>) = 4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5164] sendfile(4, 3, [118] [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5166 ./strace-static-x86_64: Process 5166 attached [pid 5166] set_robust_list(0x555556beb660, 24 [pid 5161] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5166] <... set_robust_list resumed>) = 0 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5166] setpgid(0, 0) = 0 [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5161] <... write resumed>) = 2097152 [pid 5166] write(3, "1000", 4) = 4 [pid 5166] close(3) = 0 [pid 5161] munmap(0x7f5e41d3e000, 138412032 [pid 5166] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5161] <... munmap resumed>) = 0 [pid 5166] <... openat resumed>) = 3 [pid 5166] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5166] sendfile(4, 3, [118] [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5161] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5161] ioctl(6, LOOP_CLR_FD) = 0 [pid 5161] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5161] close(6) = 0 [pid 5161] close(5) = 0 [pid 5161] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5161] write(5, "t", 1) = 1 [pid 5161] exit_group(0) = ? [pid 5161] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5167 ./strace-static-x86_64: Process 5167 attached [pid 5167] set_robust_list(0x555556beb660, 24) = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 68.972825][ T5162] syz-executor207 (5162): drop_caches: 1 [ 68.999828][ T5165] syz-executor207 (5165): drop_caches: 1 [ 69.009906][ T5163] syz-executor207 (5163): drop_caches: 1 [ 69.012611][ T5164] syz-executor207 (5164): drop_caches: 1 [pid 5167] setpgid(0, 0) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5167] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 69.091533][ T5166] syz-executor207 (5166): drop_caches: 1 [pid 5167] sendfile(4, 3, [118] [pid 5162] <... sendfile resumed> => [671], 553) = 553 [pid 5164] <... sendfile resumed> => [671], 553) = 553 [pid 5162] memfd_create("syzkaller", 0) = 5 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5164] memfd_create("syzkaller", 0) = 5 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5163] <... sendfile resumed> => [671], 553) = 553 [ 69.226182][ T5164] syz-executor207 (5164): drop_caches: 1 [ 69.231258][ T5162] syz-executor207 (5162): drop_caches: 1 [ 69.249634][ T5163] syz-executor207 (5163): drop_caches: 1 [ 69.268527][ T5166] syz-executor207 (5166): drop_caches: 1 [pid 5164] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5163] memfd_create("syzkaller", 0) = 5 [pid 5166] <... sendfile resumed> => [671], 553) = 553 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5166] memfd_create("syzkaller", 0) = 5 [pid 5165] <... sendfile resumed> => [671], 553) = 553 [pid 5165] memfd_create("syzkaller", 0 [pid 5162] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5165] <... memfd_create resumed>) = 5 [pid 5164] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5166] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5163] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5162] <... write resumed>) = 2097152 [ 69.276722][ T5165] syz-executor207 (5165): drop_caches: 1 [ 69.296823][ T5167] syz-executor207 (5167): drop_caches: 1 [pid 5162] munmap(0x7f5e41d3e000, 138412032 [pid 5165] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5162] <... munmap resumed>) = 0 [pid 5162] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5162] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5162] ioctl(6, LOOP_CLR_FD) = 0 [pid 5162] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5162] close(6 [pid 5166] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5164] <... write resumed>) = 2097152 [pid 5162] <... close resumed>) = 0 [pid 5163] <... write resumed>) = 2097152 [pid 5162] close(5 [pid 5164] munmap(0x7f5e41d3e000, 138412032 [pid 5163] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5163] ioctl(6, LOOP_SET_FD, 5 [pid 5164] <... munmap resumed>) = 0 [pid 5163] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] ioctl(6, LOOP_CLR_FD) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5164] ioctl(6, LOOP_SET_FD, 5 [pid 5166] <... write resumed>) = 2097152 [pid 5166] munmap(0x7f5e41d3e000, 138412032 [pid 5164] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5163] close(6 [pid 5166] <... munmap resumed>) = 0 [pid 5164] ioctl(6, LOOP_CLR_FD [pid 5163] <... close resumed>) = 0 [pid 5163] close(5 [pid 5166] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5164] <... ioctl resumed>) = 0 [pid 5166] <... openat resumed>) = 6 [pid 5165] <... write resumed>) = 2097152 [pid 5162] <... close resumed>) = 0 [pid 5165] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5162] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5165] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5167] <... sendfile resumed> => [671], 553) = 553 [pid 5166] ioctl(6, LOOP_SET_FD, 5 [pid 5163] <... close resumed>) = 0 [pid 5162] <... openat resumed>) = 5 [pid 5162] write(5, "t", 1 [pid 5164] ioctl(6, LOOP_SET_FD, 5 [pid 5166] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] ioctl(6, LOOP_CLR_FD) = 0 [pid 5165] <... openat resumed>) = 6 [pid 5164] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5165] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5165] ioctl(6, LOOP_CLR_FD) = 0 [pid 5163] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5163] write(5, "t", 1 [pid 5164] close(6 [pid 5167] memfd_create("syzkaller", 0 [pid 5165] ioctl(6, LOOP_SET_FD, 5 [pid 5164] <... close resumed>) = 0 [pid 5166] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5165] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] close(6 [pid 5165] close(6 [pid 5166] <... close resumed>) = 0 [pid 5165] <... close resumed>) = 0 [pid 5163] <... write resumed>) = 1 [pid 5162] <... write resumed>) = 1 [pid 5166] close(5 [pid 5165] close(5 [pid 5163] exit_group(0 [pid 5162] exit_group(0 [pid 5166] <... close resumed>) = 0 [pid 5163] <... exit_group resumed>) = ? [pid 5162] <... exit_group resumed>) = ? [pid 5167] <... memfd_create resumed>) = 5 [pid 5164] close(5 [pid 5162] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5163] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5168 ./strace-static-x86_64: Process 5168 attached [pid 5168] set_robust_list(0x555556beb660, 24) = 0 [pid 5167] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5168] setpgid(0, 0) = 0 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5168] <... openat resumed>) = 3 [pid 5168] write(3, "1000", 4) = 4 [pid 5168] close(3) = 0 [pid 5168] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5066] <... ioctl resumed>) = 0 [pid 5066] close(3 [pid 5168] <... openat resumed>) = 3 [pid 5066] <... close resumed>) = 0 [pid 5168] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5168] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5169 attached [pid 5168] sendfile(4, 3, [118] [pid 5169] set_robust_list(0x555556beb660, 24 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5169 [pid 5169] <... set_robust_list resumed>) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] <... close resumed>) = 0 [ 69.418653][ T5167] syz-executor207 (5167): drop_caches: 1 [pid 5169] setpgid(0, 0) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5169] write(3, "1000", 4 [pid 5167] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5166] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5164] <... close resumed>) = 0 [pid 5169] <... write resumed>) = 4 [pid 5169] close(3 [pid 5165] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5165] write(5, "t", 1 [pid 5169] <... close resumed>) = 0 [pid 5166] <... openat resumed>) = 5 [pid 5164] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5169] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5166] write(5, "t", 1 [pid 5164] <... openat resumed>) = 5 [pid 5164] write(5, "t", 1 [pid 5165] <... write resumed>) = 1 [pid 5165] exit_group(0 [pid 5169] <... openat resumed>) = 3 [pid 5165] <... exit_group resumed>) = ? [pid 5169] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5165] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5169] <... openat resumed>) = 4 [pid 5164] <... write resumed>) = 1 [pid 5166] <... write resumed>) = 1 [pid 5164] exit_group(0 [pid 5166] exit_group(0 [pid 5164] <... exit_group resumed>) = ? [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5169] sendfile(4, 3, [118] [pid 5166] <... exit_group resumed>) = ? [pid 5164] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5074] <... openat resumed>) = 3 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5170 attached [pid 5166] +++ exited with 0 +++ [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5170] set_robust_list(0x555556beb660, 24 [pid 5074] <... ioctl resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5170] <... set_robust_list resumed>) = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5170 [pid 5170] setpgid(0, 0 [pid 5069] <... openat resumed>) = 3 [pid 5170] <... setpgid resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... ioctl resumed>) = 0 [pid 5170] <... openat resumed>) = 3 [pid 5069] close(3 [pid 5170] write(3, "1000", 4 [pid 5069] <... close resumed>) = 0 [pid 5170] <... write resumed>) = 4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5170] close(3) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5171 ./strace-static-x86_64: Process 5171 attached [pid 5170] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5171] set_robust_list(0x555556beb660, 24 [pid 5170] <... openat resumed>) = 3 [pid 5171] <... set_robust_list resumed>) = 0 [pid 5170] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5170] <... openat resumed>) = 4 [pid 5171] <... prctl resumed>) = 0 [pid 5170] sendfile(4, 3, [118] [pid 5171] setpgid(0, 0 [pid 5074] close(3 [pid 5171] <... setpgid resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5172 attached [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5167] <... write resumed>) = 2097152 [pid 5172] set_robust_list(0x555556beb660, 24 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5172 [pid 5172] <... set_robust_list resumed>) = 0 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5171] <... openat resumed>) = 3 [pid 5171] write(3, "1000", 4 [pid 5172] <... prctl resumed>) = 0 [pid 5172] setpgid(0, 0 [pid 5171] <... write resumed>) = 4 [pid 5172] <... setpgid resumed>) = 0 [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5171] close(3) = 0 [pid 5172] <... openat resumed>) = 3 [pid 5171] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5172] write(3, "1000", 4) = 4 [pid 5172] close(3 [pid 5171] <... openat resumed>) = 3 [pid 5171] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5171] sendfile(4, 3, [118] [pid 5172] <... close resumed>) = 0 [pid 5167] munmap(0x7f5e41d3e000, 138412032 [pid 5172] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5167] <... munmap resumed>) = 0 [pid 5172] <... openat resumed>) = 3 [pid 5172] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5167] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5172] <... openat resumed>) = 4 [pid 5172] sendfile(4, 3, [118] [pid 5167] <... openat resumed>) = 6 [pid 5167] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5167] ioctl(6, LOOP_CLR_FD) = 0 [pid 5167] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5167] close(6) = 0 [pid 5167] close(5) = 0 [pid 5167] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5167] write(5, "t", 1) = 1 [pid 5167] exit_group(0) = ? [pid 5167] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5173 attached , child_tidptr=0x555556beb650) = 5173 [pid 5173] set_robust_list(0x555556beb660, 24) = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setpgid(0, 0) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5173] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 69.703842][ T5169] syz-executor207 (5169): drop_caches: 1 [ 69.752087][ T5170] syz-executor207 (5170): drop_caches: 1 [ 69.759124][ T5168] syz-executor207 (5168): drop_caches: 1 [ 69.782486][ T5171] syz-executor207 (5171): drop_caches: 1 [ 69.876754][ T5172] syz-executor207 (5172): drop_caches: 1 [pid 5173] sendfile(4, 3, [118] [pid 5168] <... sendfile resumed> => [671], 553) = 553 [pid 5169] <... sendfile resumed> => [671], 553) = 553 [pid 5169] memfd_create("syzkaller", 0) = 5 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 69.935222][ T5173] syz-executor207 (5173): drop_caches: 1 [ 69.939876][ T5170] syz-executor207 (5170): drop_caches: 1 [ 69.948989][ T5168] syz-executor207 (5168): drop_caches: 1 [ 69.957429][ T5169] syz-executor207 (5169): drop_caches: 1 [pid 5168] memfd_create("syzkaller", 0 [pid 5170] <... sendfile resumed> => [671], 553) = 553 [pid 5168] <... memfd_create resumed>) = 5 [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5170] memfd_create("syzkaller", 0) = 5 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5169] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5171] <... sendfile resumed> => [671], 553) = 553 [pid 5170] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5171] memfd_create("syzkaller", 0) = 5 [ 69.998765][ T5171] syz-executor207 (5171): drop_caches: 1 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5169] <... write resumed>) = 2097152 [pid 5169] munmap(0x7f5e41d3e000, 138412032 [pid 5168] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5169] <... munmap resumed>) = 0 [pid 5169] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5169] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5169] ioctl(6, LOOP_CLR_FD) = 0 [pid 5169] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5169] close(6) = 0 [pid 5169] close(5) = 0 [pid 5172] <... sendfile resumed> => [671], 553) = 553 [pid 5170] <... write resumed>) = 2097152 [pid 5170] munmap(0x7f5e41d3e000, 138412032 [pid 5172] memfd_create("syzkaller", 0 [pid 5170] <... munmap resumed>) = 0 [pid 5172] <... memfd_create resumed>) = 5 [pid 5168] <... write resumed>) = 2097152 [pid 5170] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5168] munmap(0x7f5e41d3e000, 138412032 [pid 5170] <... openat resumed>) = 6 [pid 5170] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5170] ioctl(6, LOOP_CLR_FD) = 0 [pid 5169] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5168] <... munmap resumed>) = 0 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5170] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5170] close(6) = 0 [pid 5170] close(5 [pid 5169] <... openat resumed>) = 5 [pid 5169] write(5, "t", 1 [ 70.066599][ T5172] syz-executor207 (5172): drop_caches: 1 [pid 5171] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5169] <... write resumed>) = 1 [pid 5169] exit_group(0) = ? [pid 5169] +++ exited with 0 +++ [pid 5168] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5168] <... openat resumed>) = 6 [pid 5170] <... close resumed>) = 0 [pid 5168] ioctl(6, LOOP_SET_FD, 5 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5168] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5066] <... openat resumed>) = 3 [pid 5168] ioctl(6, LOOP_CLR_FD) = 0 [pid 5170] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5168] ioctl(6, LOOP_SET_FD, 5 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5168] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5168] close(6 [pid 5066] <... ioctl resumed>) = 0 [pid 5066] close(3) = 0 [pid 5168] <... close resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5168] close(5./strace-static-x86_64: Process 5174 attached [pid 5174] set_robust_list(0x555556beb660, 24) = 0 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x555556beb650) = 5174 [pid 5174] setpgid(0, 0) = 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] <... sendfile resumed> => [671], 553) = 553 [pid 5172] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5171] <... write resumed>) = 2097152 [pid 5170] <... openat resumed>) = 5 [pid 5168] <... close resumed>) = 0 [ 70.124631][ T5173] syz-executor207 (5173): drop_caches: 1 [pid 5173] memfd_create("syzkaller", 0 [pid 5174] write(3, "1000", 4 [pid 5171] munmap(0x7f5e41d3e000, 138412032 [pid 5170] write(5, "t", 1 [pid 5168] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5174] <... write resumed>) = 4 [pid 5168] <... openat resumed>) = 5 [pid 5174] close(3 [pid 5168] write(5, "t", 1 [pid 5174] <... close resumed>) = 0 [pid 5174] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5174] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5174] sendfile(4, 3, [118] [pid 5173] <... memfd_create resumed>) = 5 [pid 5171] <... munmap resumed>) = 0 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5170] <... write resumed>) = 1 [pid 5168] <... write resumed>) = 1 [pid 5168] exit_group(0 [pid 5170] exit_group(0 [pid 5168] <... exit_group resumed>) = ? [pid 5171] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5170] <... exit_group resumed>) = ? [pid 5168] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5175 attached [pid 5170] +++ exited with 0 +++ [pid 5173] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5175] set_robust_list(0x555556beb660, 24 [pid 5171] <... openat resumed>) = 6 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5175 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5175] <... set_robust_list resumed>) = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5175] setpgid(0, 0 [pid 5067] <... openat resumed>) = 3 [pid 5175] <... setpgid resumed>) = 0 [pid 5173] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5172] <... write resumed>) = 2097152 [pid 5171] ioctl(6, LOOP_SET_FD, 5 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5171] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... ioctl resumed>) = 0 [pid 5171] ioctl(6, LOOP_CLR_FD [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5176 ./strace-static-x86_64: Process 5176 attached [pid 5176] set_robust_list(0x555556beb660, 24 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5171] <... ioctl resumed>) = 0 [pid 5176] <... set_robust_list resumed>) = 0 [pid 5175] <... openat resumed>) = 3 [pid 5172] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5171] ioctl(6, LOOP_SET_FD, 5 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5176] setpgid(0, 0) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5175] write(3, "1000", 4 [pid 5172] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5171] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5175] <... write resumed>) = 4 [pid 5172] <... openat resumed>) = 6 [pid 5175] close(3 [pid 5172] ioctl(6, LOOP_SET_FD, 5 [pid 5175] <... close resumed>) = 0 [pid 5172] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5175] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5172] ioctl(6, LOOP_CLR_FD [pid 5175] <... openat resumed>) = 3 [pid 5172] <... ioctl resumed>) = 0 [pid 5175] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5176] write(3, "1000", 4 [pid 5175] sendfile(4, 3, [118] [pid 5171] close(6) = 0 [pid 5172] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5172] close(6) = 0 [pid 5176] <... write resumed>) = 4 [pid 5172] close(5 [pid 5176] close(3 [pid 5171] close(5 [pid 5176] <... close resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5176] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5171] <... close resumed>) = 0 [pid 5176] sendfile(4, 3, [118] [pid 5173] <... write resumed>) = 2097152 [pid 5171] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5173] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5173] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5171] <... openat resumed>) = 5 [pid 5171] write(5, "t", 1 [pid 5173] <... openat resumed>) = 6 [pid 5173] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5173] ioctl(6, LOOP_CLR_FD) = 0 [pid 5173] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5173] close(6) = 0 [pid 5172] <... close resumed>) = 0 [pid 5171] <... write resumed>) = 1 [pid 5171] exit_group(0 [pid 5173] close(5) = 0 [pid 5172] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5171] <... exit_group resumed>) = ? [pid 5172] <... openat resumed>) = 5 [pid 5172] write(5, "t", 1 [pid 5171] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5172] <... write resumed>) = 1 [pid 5172] exit_group(0) = ? [pid 5172] +++ exited with 0 +++ [pid 5069] <... openat resumed>) = 3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5173] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5074] ioctl(3, LOOP_CLR_FD) = 0 [pid 5074] close(3) = 0 [pid 5173] <... openat resumed>) = 5 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5173] write(5, "t", 1 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5177 ./strace-static-x86_64: Process 5177 attached [pid 5177] set_robust_list(0x555556beb660, 24) = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5177] setpgid(0, 0) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5177] write(3, "1000", 4) = 4 [pid 5177] close(3) = 0 [pid 5177] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5069] close(3) = 0 [pid 5177] <... openat resumed>) = 3 [pid 5177] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5177] sendfile(4, 3, [118] [pid 5173] <... write resumed>) = 1 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5173] exit_group(0./strace-static-x86_64: Process 5178 attached ) = ? [pid 5178] set_robust_list(0x555556beb660, 24 [pid 5173] +++ exited with 0 +++ [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5178 [pid 5178] <... set_robust_list resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5178] <... prctl resumed>) = 0 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5178] setpgid(0, 0) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] <... openat resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3 [pid 5178] <... openat resumed>) = 3 [pid 5065] <... close resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5178] write(3, "1000", 4 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5179 ./strace-static-x86_64: Process 5179 attached [pid 5178] <... write resumed>) = 4 [pid 5178] close(3 [pid 5179] set_robust_list(0x555556beb660, 24 [pid 5178] <... close resumed>) = 0 [pid 5179] <... set_robust_list resumed>) = 0 [pid 5178] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5178] <... openat resumed>) = 3 [pid 5179] setpgid(0, 0 [pid 5178] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5179] <... setpgid resumed>) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5178] <... openat resumed>) = 4 [pid 5179] write(3, "1000", 4 [pid 5178] sendfile(4, 3, [118] [pid 5179] <... write resumed>) = 4 [pid 5179] close(3) = 0 [ 70.411134][ T5174] syz-executor207 (5174): drop_caches: 1 [ 70.435383][ T5175] syz-executor207 (5175): drop_caches: 1 [pid 5179] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5179] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 70.483344][ T5176] syz-executor207 (5176): drop_caches: 1 [pid 5179] sendfile(4, 3, [118] [pid 5175] <... sendfile resumed> => [671], 553) = 553 [ 70.579118][ T5177] syz-executor207 (5177): drop_caches: 1 [ 70.586300][ T5175] syz-executor207 (5175): drop_caches: 1 [ 70.614102][ T5178] syz-executor207 (5178): drop_caches: 1 [pid 5175] memfd_create("syzkaller", 0) = 5 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5174] <... sendfile resumed> => [671], 553) = 553 [pid 5174] memfd_create("syzkaller", 0) = 5 [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 70.626309][ T5174] syz-executor207 (5174): drop_caches: 1 [ 70.642354][ T5179] syz-executor207 (5179): drop_caches: 1 [pid 5174] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5176] <... sendfile resumed> => [671], 553) = 553 [pid 5175] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5176] memfd_create("syzkaller", 0) = 5 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5175] <... write resumed>) = 2097152 [pid 5175] munmap(0x7f5e41d3e000, 138412032 [pid 5174] <... write resumed>) = 2097152 [pid 5175] <... munmap resumed>) = 0 [pid 5174] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5174] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5174] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5174] ioctl(6, LOOP_CLR_FD) = 0 [ 70.712016][ T5176] syz-executor207 (5176): drop_caches: 1 [pid 5174] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5174] close(6) = 0 [pid 5174] close(5) = 0 [pid 5176] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5175] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5178] <... sendfile resumed> => [671], 553) = 553 [pid 5176] <... write resumed>) = 2097152 [pid 5175] ioctl(6, LOOP_SET_FD, 5 [pid 5174] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5177] <... sendfile resumed> => [671], 553) = 553 [pid 5177] memfd_create("syzkaller", 0) = 5 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5175] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5174] <... openat resumed>) = 5 [pid 5174] write(5, "t", 1 [pid 5175] ioctl(6, LOOP_CLR_FD) = 0 [pid 5178] memfd_create("syzkaller", 0 [pid 5177] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5179] <... sendfile resumed> => [671], 553) = 553 [pid 5178] <... memfd_create resumed>) = 5 [pid 5176] munmap(0x7f5e41d3e000, 138412032 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5175] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5175] close(6) = 0 [pid 5179] memfd_create("syzkaller", 0 [pid 5175] close(5 [pid 5179] <... memfd_create resumed>) = 5 [pid 5174] <... write resumed>) = 1 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5174] exit_group(0 [pid 5179] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5174] <... exit_group resumed>) = ? [pid 5174] +++ exited with 0 +++ [pid 5176] <... munmap resumed>) = 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [ 70.772613][ T5178] syz-executor207 (5178): drop_caches: 1 [ 70.798684][ T5177] syz-executor207 (5177): drop_caches: 1 [ 70.800800][ T5179] syz-executor207 (5179): drop_caches: 1 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5178] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5177] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5176] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5175] <... close resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5180 ./strace-static-x86_64: Process 5180 attached [pid 5176] <... openat resumed>) = 6 [pid 5175] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5180] set_robust_list(0x555556beb660, 24) = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5180] setpgid(0, 0) = 0 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5180] close(3) = 0 [pid 5180] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5179] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5176] ioctl(6, LOOP_SET_FD, 5 [pid 5175] <... openat resumed>) = 5 [pid 5175] write(5, "t", 1 [pid 5176] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5180] <... openat resumed>) = 3 [pid 5176] ioctl(6, LOOP_CLR_FD [pid 5180] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5176] <... ioctl resumed>) = 0 [pid 5180] sendfile(4, 3, [118] [pid 5178] <... write resumed>) = 2097152 [pid 5177] <... write resumed>) = 2097152 [pid 5178] munmap(0x7f5e41d3e000, 138412032 [pid 5177] munmap(0x7f5e41d3e000, 138412032 [pid 5176] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5177] <... munmap resumed>) = 0 [pid 5178] <... munmap resumed>) = 0 [pid 5176] close(6 [pid 5177] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5176] <... close resumed>) = 0 [pid 5178] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5175] <... write resumed>) = 1 [pid 5177] <... openat resumed>) = 6 [pid 5175] exit_group(0 [pid 5178] <... openat resumed>) = 6 [pid 5176] close(5 [pid 5175] <... exit_group resumed>) = ? [pid 5178] ioctl(6, LOOP_SET_FD, 5 [pid 5177] ioctl(6, LOOP_SET_FD, 5 [pid 5176] <... close resumed>) = 0 [pid 5176] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5177] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] <... openat resumed>) = 5 [pid 5178] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5177] ioctl(6, LOOP_CLR_FD [pid 5176] write(5, "t", 1 [pid 5178] ioctl(6, LOOP_CLR_FD [pid 5177] <... ioctl resumed>) = 0 [pid 5175] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5178] <... ioctl resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5177] ioctl(6, LOOP_SET_FD, 5 [pid 5178] ioctl(6, LOOP_SET_FD, 5 [pid 5177] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] close(6 [pid 5177] close(6 [pid 5068] <... openat resumed>) = 3 [pid 5178] <... close resumed>) = 0 [pid 5177] <... close resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5177] close(5 [pid 5068] <... ioctl resumed>) = 0 [pid 5178] close(5 [pid 5068] close(3) = 0 [pid 5177] <... close resumed>) = 0 [pid 5178] <... close resumed>) = 0 [pid 5176] <... write resumed>) = 1 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5177] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5177] write(5, "t", 1 [pid 5178] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5176] exit_group(0 [pid 5068] <... clone resumed>, child_tidptr=0x555556beb650) = 5181 [pid 5178] <... openat resumed>) = 5 [pid 5176] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5181 attached [pid 5178] write(5, "t", 1 [pid 5181] set_robust_list(0x555556beb660, 24) = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] setpgid(0, 0) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5176] +++ exited with 0 +++ [pid 5181] write(3, "1000", 4) = 4 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5179] <... write resumed>) = 2097152 [pid 5177] <... write resumed>) = 1 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5181] close(3 [pid 5177] exit_group(0 [pid 5067] <... openat resumed>) = 3 [pid 5181] <... close resumed>) = 0 [pid 5177] <... exit_group resumed>) = ? [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5181] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5067] <... ioctl resumed>) = 0 [pid 5067] close(3 [pid 5181] <... openat resumed>) = 3 [pid 5177] +++ exited with 0 +++ [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5181] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5181] sendfile(4, 3, [118] [pid 5178] <... write resumed>) = 1 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5178] exit_group(0 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5178] <... exit_group resumed>) = ? [pid 5074] <... restart_syscall resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555556beb650) = 5182 [pid 5179] munmap(0x7f5e41d3e000, 138412032 [pid 5178] +++ exited with 0 +++ ./strace-static-x86_64: Process 5182 attached [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5182] set_robust_list(0x555556beb660, 24) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5179] <... munmap resumed>) = 0 [pid 5074] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] close(3) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 5183 attached [pid 5069] close(3 [pid 5183] set_robust_list(0x555556beb660, 24 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5183 [pid 5069] <... close resumed>) = 0 [pid 5183] <... set_robust_list resumed>) = 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5182] <... prctl resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5183] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5184 attached [pid 5183] setpgid(0, 0 [pid 5182] setpgid(0, 0 [pid 5184] set_robust_list(0x555556beb660, 24 [pid 5183] <... setpgid resumed>) = 0 [pid 5182] <... setpgid resumed>) = 0 [pid 5184] <... set_robust_list resumed>) = 0 [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5184] <... prctl resumed>) = 0 [pid 5184] setpgid(0, 0 [pid 5183] <... openat resumed>) = 3 [pid 5182] <... openat resumed>) = 3 [pid 5184] <... setpgid resumed>) = 0 [pid 5183] write(3, "1000", 4 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... write resumed>) = 4 [pid 5182] write(3, "1000", 4 [pid 5069] <... clone resumed>, child_tidptr=0x555556beb650) = 5184 [pid 5184] <... openat resumed>) = 3 [pid 5183] close(3 [pid 5182] <... write resumed>) = 4 [pid 5179] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5184] write(3, "1000", 4 [pid 5183] <... close resumed>) = 0 [pid 5184] <... write resumed>) = 4 [pid 5184] close(3 [pid 5183] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5182] close(3 [pid 5179] <... openat resumed>) = 6 [pid 5182] <... close resumed>) = 0 [pid 5182] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5179] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5182] <... openat resumed>) = 3 [pid 5179] ioctl(6, LOOP_CLR_FD) = 0 [pid 5183] <... openat resumed>) = 3 [pid 5184] <... close resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5184] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5183] sendfile(4, 3, [118] [pid 5184] <... openat resumed>) = 3 [pid 5182] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5179] ioctl(6, LOOP_SET_FD, 5 [pid 5182] sendfile(4, 3, [118] [pid 5179] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5179] close(6 [pid 5184] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5179] <... close resumed>) = 0 [pid 5179] close(5 [pid 5184] <... openat resumed>) = 4 [pid 5179] <... close resumed>) = 0 [pid 5184] sendfile(4, 3, [118] [pid 5179] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [ 71.037029][ T5180] syz-executor207 (5180): drop_caches: 1 [pid 5179] write(5, "t", 1) = 1 [pid 5179] exit_group(0) = ? [pid 5179] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5185 ./strace-static-x86_64: Process 5185 attached [pid 5185] set_robust_list(0x555556beb660, 24) = 0 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5185] setpgid(0, 0) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5185] write(3, "1000", 4) = 4 [pid 5185] close(3) = 0 [pid 5185] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5185] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 71.246494][ T5181] syz-executor207 (5181): drop_caches: 1 [ 71.269794][ T5180] syz-executor207 (5180): drop_caches: 1 [pid 5185] sendfile(4, 3, [118] [pid 5180] <... sendfile resumed> => [671], 553) = 553 [pid 5180] memfd_create("syzkaller", 0) = 5 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [ 71.294318][ T5184] syz-executor207 (5184): drop_caches: 1 [ 71.301728][ T5183] syz-executor207 (5183): drop_caches: 1 [ 71.301952][ T5182] syz-executor207 (5182): drop_caches: 1 [ 71.314853][ T5185] syz-executor207 (5185): drop_caches: 1 [pid 5180] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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) = 2097152 [pid 5180] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5180] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5180] ioctl(6, LOOP_CLR_FD) = 0 [pid 5180] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5180] close(6) = 0 [pid 5180] close(5) = 0 [pid 5180] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5180] write(5, "t", 1) = 1 [pid 5180] exit_group(0) = ? [pid 5180] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5186 attached , child_tidptr=0x555556beb650) = 5186 [pid 5186] set_robust_list(0x555556beb660, 24) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5186] setpgid(0, 0) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5181] <... sendfile resumed> => [671], 553) = 553 [pid 5186] write(3, "1000", 4 [pid 5184] <... sendfile resumed> => [671], 553) = 553 [pid 5186] <... write resumed>) = 4 [pid 5186] close(3 [pid 5184] memfd_create("syzkaller", 0 [pid 5186] <... close resumed>) = 0 [pid 5184] <... memfd_create resumed>) = 5 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5186] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5181] memfd_create("syzkaller", 0 [pid 5186] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5186] sendfile(4, 3, [118] [pid 5181] <... memfd_create resumed>) = 5 [ 71.446965][ T5181] syz-executor207 (5181): drop_caches: 1 [ 71.480596][ T5184] syz-executor207 (5184): drop_caches: 1 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5184] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5181] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5185] <... sendfile resumed> => [671], 553) = 553 [pid 5184] <... write resumed>) = 2097152 [pid 5183] <... sendfile resumed> => [671], 553) = 553 [pid 5182] <... sendfile resumed> => [671], 553) = 553 [pid 5185] memfd_create("syzkaller", 0 [pid 5183] memfd_create("syzkaller", 0 [pid 5182] memfd_create("syzkaller", 0 [pid 5185] <... memfd_create resumed>) = 5 [pid 5182] <... memfd_create resumed>) = 5 [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5185] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5183] <... memfd_create resumed>) = 5 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5182] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5183] <... mmap resumed>) = 0x7f5e41d3e000 [pid 5184] munmap(0x7f5e41d3e000, 138412032) = 0 [pid 5184] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5184] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5184] ioctl(6, LOOP_CLR_FD) = 0 [ 71.515199][ T5185] syz-executor207 (5185): drop_caches: 1 [ 71.526663][ T5182] syz-executor207 (5182): drop_caches: 1 [ 71.538082][ T5183] syz-executor207 (5183): drop_caches: 1 [pid 5184] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5184] close(6) = 0 [pid 5184] close(5 [pid 5181] <... write resumed>) = 2097152 [pid 5181] munmap(0x7f5e41d3e000, 138412032 [pid 5185] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5184] <... close resumed>) = 0 [pid 5184] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5182] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5181] <... munmap resumed>) = 0 [pid 5183] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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 5181] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5184] <... openat resumed>) = 5 [pid 5181] <... openat resumed>) = 6 [pid 5184] write(5, "t", 1 [pid 5181] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5181] ioctl(6, LOOP_CLR_FD) = 0 [pid 5184] <... write resumed>) = 1 [pid 5183] <... write resumed>) = 2097152 [pid 5184] exit_group(0 [pid 5181] ioctl(6, LOOP_SET_FD, 5 [pid 5184] <... exit_group resumed>) = ? [pid 5181] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5184] +++ exited with 0 +++ [pid 5181] close(6) = 0 [pid 5181] close(5 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5181] <... close resumed>) = 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5181] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5181] <... openat resumed>) = 5 [pid 5181] write(5, "t", 1 [pid 5183] munmap(0x7f5e41d3e000, 138412032 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5187 attached , child_tidptr=0x555556beb650) = 5187 [pid 5187] set_robust_list(0x555556beb660, 24 [pid 5183] <... munmap resumed>) = 0 [pid 5182] <... write resumed>) = 2097152 [pid 5187] <... set_robust_list resumed>) = 0 [pid 5181] <... write resumed>) = 1 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5181] exit_group(0 [pid 5187] <... prctl resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5181] <... exit_group resumed>) = ? [pid 5187] setpgid(0, 0 [pid 5183] <... openat resumed>) = 6 [pid 5181] +++ exited with 0 +++ [pid 5187] <... setpgid resumed>) = 0 [pid 5183] ioctl(6, LOOP_SET_FD, 5 [pid 5182] munmap(0x7f5e41d3e000, 138412032 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5185] <... write resumed>) = 2097152 [pid 5183] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5187] <... openat resumed>) = 3 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5188 [pid 5187] write(3, "1000", 4 [pid 5183] ioctl(6, LOOP_CLR_FD [pid 5187] <... write resumed>) = 4 [pid 5183] <... ioctl resumed>) = 0 [pid 5187] close(3./strace-static-x86_64: Process 5188 attached ) = 0 [pid 5188] set_robust_list(0x555556beb660, 24 [pid 5187] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5182] <... munmap resumed>) = 0 [pid 5188] <... set_robust_list resumed>) = 0 [pid 5187] <... openat resumed>) = 3 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5187] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5182] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5188] <... prctl resumed>) = 0 [pid 5187] <... openat resumed>) = 4 [ 71.639478][ T5186] syz-executor207 (5186): drop_caches: 1 [pid 5188] setpgid(0, 0 [pid 5187] sendfile(4, 3, [118] [pid 5185] munmap(0x7f5e41d3e000, 138412032 [pid 5183] ioctl(6, LOOP_SET_FD, 5 [pid 5182] <... openat resumed>) = 6 [pid 5188] <... setpgid resumed>) = 0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5185] <... munmap resumed>) = 0 [pid 5183] close(6 [pid 5188] <... openat resumed>) = 3 [pid 5183] <... close resumed>) = 0 [pid 5182] ioctl(6, LOOP_SET_FD, 5 [pid 5183] close(5 [pid 5182] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5183] <... close resumed>) = 0 [pid 5182] ioctl(6, LOOP_CLR_FD [pid 5183] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5182] <... ioctl resumed>) = 0 [pid 5183] <... openat resumed>) = 5 [pid 5183] write(5, "t", 1 [pid 5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5182] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5185] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5185] ioctl(6, LOOP_CLR_FD [pid 5188] write(3, "1000", 4 [pid 5185] <... ioctl resumed>) = 0 [pid 5182] close(6 [pid 5188] <... write resumed>) = 4 [pid 5182] <... close resumed>) = 0 [pid 5188] close(3 [pid 5182] close(5 [pid 5185] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5185] close(6) = 0 [pid 5185] close(5) = 0 [pid 5185] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5185] write(5, "t", 1 [pid 5183] <... write resumed>) = 1 [pid 5188] <... close resumed>) = 0 [pid 5183] exit_group(0) = ? [pid 5188] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5185] <... write resumed>) = 1 [pid 5185] exit_group(0) = ? [pid 5188] <... openat resumed>) = 3 [pid 5185] +++ exited with 0 +++ [pid 5188] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5183] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5065] <... ioctl resumed>) = 0 [pid 5065] close(3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5065] <... close resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... ioctl resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555556beb650) = 5189 [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5189 attached [pid 5189] set_robust_list(0x555556beb660, 24) = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5190 attached [pid 5190] set_robust_list(0x555556beb660, 24) = 0 [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5189] setpgid(0, 0 [pid 5190] <... prctl resumed>) = 0 [pid 5189] <... setpgid resumed>) = 0 [pid 5190] setpgid(0, 0) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5188] <... openat resumed>) = 4 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5189] <... openat resumed>) = 3 [pid 5188] sendfile(4, 3, [118] [pid 5190] <... openat resumed>) = 3 [pid 5190] write(3, "1000", 4) = 4 [pid 5190] close(3) = 0 [pid 5190] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5190] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5190] sendfile(4, 3, [118] [pid 5189] write(3, "1000", 4) = 4 [pid 5189] close(3) = 0 [pid 5189] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5189] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5189] sendfile(4, 3, [118] [pid 5182] <... close resumed>) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556beb650) = 5190 [pid 5182] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5182] write(5, "t", 1) = 1 [pid 5182] exit_group(0) = ? [pid 5182] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556beb650) = 5191 ./strace-static-x86_64: Process 5191 attached [pid 5191] set_robust_list(0x555556beb660, 24) = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5186] <... sendfile resumed> => [671], 553) = 553 [pid 5186] memfd_create("syzkaller", 0 [pid 5191] setpgid(0, 0) = 0 [pid 5186] <... memfd_create resumed>) = 5 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e41d3e000 [pid 5191] <... openat resumed>) = 3 [pid 5191] write(3, "1000", 4) = 4 [pid 5191] close(3) = 0 [ 71.887106][ T5186] syz-executor207 (5186): drop_caches: 1 [pid 5191] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5191] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5191] sendfile(4, 3, [118] [ 71.941580][ T5188] syz-executor207 (5188): drop_caches: 1 [ 71.972271][ T5187] syz-executor207 (5187): drop_caches: 1 [pid 5186] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\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\x03\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\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) = 2097152