./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4096994442 <...> Warning: Permanently added '10.128.1.71' (ECDSA) to the list of known hosts. execve("./syz-executor4096994442", ["./syz-executor4096994442"], 0x7ffdf939bca0 /* 10 vars */) = 0 brk(NULL) = 0x555556ae6000 brk(0x555556ae6c40) = 0x555556ae6c40 arch_prctl(ARCH_SET_FS, 0x555556ae6300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4096994442", 4096) = 28 brk(0x555556b07c40) = 0x555556b07c40 brk(0x555556b08000) = 0x555556b08000 mprotect(0x7f61a359b000, 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, child_tidptr=0x555556ae65d0) = 5067 ./strace-static-x86_64: Process 5067 attached [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] getpid() = 5067 ./strace-static-x86_64: Process 5068 attached [pid 5066] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5068 [pid 5067] mkdir("./syzkaller.KJV5Hk", 0700 [pid 5068] getpid() = 5068 [pid 5068] mkdir("./syzkaller.uVV2Eq", 0700 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5069 attached , child_tidptr=0x555556ae65d0) = 5069 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... mkdir resumed>) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5070 [pid 5069] getpid(./strace-static-x86_64: Process 5070 attached [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... getpid resumed>) = 5069 [pid 5068] <... mkdir resumed>) = 0 [pid 5068] chmod("./syzkaller.uVV2Eq", 0777) = 0 [pid 5067] chmod("./syzkaller.KJV5Hk", 0777 [pid 5068] chdir("./syzkaller.uVV2Eq") = 0 [pid 5068] mkdir("./0", 0777 [pid 5066] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5071 [pid 5069] mkdir("./syzkaller.pjiYht", 0700 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... chmod resumed>) = 0 ./strace-static-x86_64: Process 5072 attached ./strace-static-x86_64: Process 5071 attached [pid 5070] getpid( [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] chdir("./syzkaller.KJV5Hk") = 0 [pid 5066] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5072 [pid 5069] chmod("./syzkaller.pjiYht", 0777 [pid 5067] mkdir("./0", 0777 [pid 5072] getpid( [pid 5069] <... chmod resumed>) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... getpid resumed>) = 5072 [pid 5071] getpid( [pid 5069] chdir("./syzkaller.pjiYht" [pid 5068] <... openat resumed>) = 3 [pid 5070] <... getpid resumed>) = 5070 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] <... openat resumed>) = 3 [pid 5071] <... getpid resumed>) = 5071 [pid 5070] mkdir("./syzkaller.2Wji6z", 0700 [pid 5069] <... chdir resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5071] mkdir("./syzkaller.iaG23E", 0700 [pid 5068] close(3 [pid 5070] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5073 ./strace-static-x86_64: Process 5073 attached [pid 5073] chdir("./0") = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5073] memfd_create("syzkaller", 0) = 3 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... mkdir resumed>) = 0 [pid 5067] close(3 [pid 5069] mkdir("./0", 0777 [pid 5070] chmod("./syzkaller.2Wji6z", 0777 [pid 5067] <... close resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... chmod resumed>) = 0 [pid 5071] chmod("./syzkaller.iaG23E", 0777 [pid 5070] chdir("./syzkaller.2Wji6z" [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5067] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5074 [pid 5072] mkdir("./syzkaller.6CwPrK", 0700 [pid 5071] <... chmod resumed>) = 0 [pid 5071] chdir("./syzkaller.iaG23E" [pid 5070] <... chdir resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5070] mkdir("./0", 0777 [pid 5071] <... chdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] <... mkdir resumed>) = 0 [pid 5071] mkdir("./0", 0777 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5074 attached [pid 5074] chdir("./0" [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... openat resumed>) = 3 [pid 5069] close(3 [pid 5074] <... chdir resumed>) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... mkdir resumed>) = 0 [pid 5074] <... prctl resumed>) = 0 [pid 5074] setpgid(0, 0 [pid 5071] <... openat resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... setpgid resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] close(3 [pid 5070] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5075 [pid 5071] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] chmod("./syzkaller.6CwPrK", 0777 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... openat resumed>) = 3 [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... chmod resumed>) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5077 [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5076 [pid 5072] chdir("./syzkaller.6CwPrK") = 0 [pid 5072] mkdir("./0", 0777 [pid 5074] <... symlink resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5075 attached ./strace-static-x86_64: Process 5077 attached [pid 5074] memfd_create("syzkaller", 0 [pid 5072] <... openat resumed>) = 3 [pid 5077] chdir("./0" [pid 5075] chdir("./0"./strace-static-x86_64: Process 5076 attached [pid 5077] <... chdir resumed>) = 0 [pid 5075] <... chdir resumed>) = 0 [pid 5074] <... memfd_create resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] chdir("./0" [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] <... prctl resumed>) = 0 [pid 5076] <... chdir resumed>) = 0 [pid 5075] <... prctl resumed>) = 0 [pid 5074] <... mmap resumed>) = 0x7f619b0de000 [pid 5072] close(3 [pid 5077] setpgid(0, 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] setpgid(0, 0 [pid 5072] <... close resumed>) = 0 [pid 5076] <... prctl resumed>) = 0 [pid 5075] <... setpgid resumed>) = 0 [pid 5077] <... setpgid resumed>) = 0 [pid 5076] setpgid(0, 0 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... setpgid resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] write(3, "1000", 4 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... write resumed>) = 4 [pid 5076] write(3, "1000", 4 [pid 5075] close(3 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... write resumed>) = 4 [pid 5075] <... close resumed>) = 0 [pid 5076] close(3 [pid 5075] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5079 [pid 5077] write(3, "1000", 4 [pid 5076] <... close resumed>) = 0 [pid 5075] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5079 attached [pid 5076] symlink("/dev/binderfs", "./binderfs" [pid 5075] memfd_create("syzkaller", 0 [pid 5077] <... write resumed>) = 4 [pid 5079] chdir("./0" [pid 5076] <... symlink resumed>) = 0 [pid 5075] <... memfd_create resumed>) = 3 [pid 5079] <... chdir resumed>) = 0 [pid 5077] close(3 [pid 5076] memfd_create("syzkaller", 0 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... close resumed>) = 0 [pid 5076] <... memfd_create resumed>) = 3 [pid 5075] <... mmap resumed>) = 0x7f619b0de000 [pid 5079] <... prctl resumed>) = 0 [pid 5077] symlink("/dev/binderfs", "./binderfs" [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] setpgid(0, 0 [pid 5076] <... mmap resumed>) = 0x7f619b0de000 [pid 5079] <... setpgid resumed>) = 0 [pid 5077] <... symlink resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... openat resumed>) = 3 [pid 5077] memfd_create("syzkaller", 0 [pid 5079] write(3, "1000", 4) = 4 [pid 5079] close(3) = 0 [pid 5077] <... memfd_create resumed>) = 3 [pid 5079] symlink("/dev/binderfs", "./binderfs" [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... symlink resumed>) = 0 [pid 5079] memfd_create("syzkaller", 0 [pid 5077] <... mmap resumed>) = 0x7f619b0de000 [pid 5079] <... memfd_create resumed>) = 3 [pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... write resumed>) = 4194304 [pid 5073] <... write resumed>) = 4194304 [pid 5073] munmap(0x7f619b0de000, 4194304) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5073] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... write resumed>) = 4194304 [pid 5073] <... ioctl resumed>) = 0 [pid 5074] munmap(0x7f619b0de000, 4194304) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5074] ioctl(4, LOOP_SET_FD, 3 [pid 5077] <... write resumed>) = 4194304 [pid 5076] munmap(0x7f619b0de000, 4194304 [pid 5074] <... ioctl resumed>) = 0 [pid 5073] close(3 [pid 5077] munmap(0x7f619b0de000, 4194304 [pid 5076] <... munmap resumed>) = 0 [pid 5077] <... munmap resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] close(3 [pid 5073] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5077] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5074] <... close resumed>) = 0 [pid 5073] mkdir("./file0", 0777 [pid 5076] ioctl(4, LOOP_SET_FD, 3 [pid 5074] mkdir("./file0", 0777 [pid 5079] <... write resumed>) = 4194304 [pid 5079] munmap(0x7f619b0de000, 4194304) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 56.685643][ T5073] loop1: detected capacity change from 0 to 8192 [ 56.703336][ T5074] loop0: detected capacity change from 0 to 8192 [ 56.716493][ T5077] loop4: detected capacity change from 0 to 8192 [ 56.727760][ T5076] loop3: detected capacity change from 0 to 8192 [pid 5079] ioctl(4, LOOP_SET_FD, 3 [pid 5077] close(3 [pid 5076] <... ioctl resumed>) = 0 [pid 5075] <... write resumed>) = 4194304 [pid 5074] <... mkdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5074] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5073] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5079] <... ioctl resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] close(3 [pid 5075] munmap(0x7f619b0de000, 4194304 [pid 5079] close(3 [pid 5077] mkdir("./file0", 0777 [pid 5076] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... munmap resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5075] ioctl(4, LOOP_SET_FD, 3 [pid 5079] mkdir("./file0", 0777 [ 56.732634][ T5079] loop5: detected capacity change from 0 to 8192 [ 56.747415][ T5073] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 56.748990][ T5075] loop2: detected capacity change from 0 to 8192 [ 56.761423][ T5073] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5077] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5079] <... mkdir resumed>) = 0 [pid 5076] mkdir("./file0", 0777) = 0 [pid 5076] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5075] <... ioctl resumed>) = 0 [pid 5075] close(3) = 0 [pid 5075] mkdir("./file0", 0777) = 0 [pid 5075] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [ 56.767860][ T5074] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 56.778373][ T5073] REISERFS (device loop1): using ordered data mode [ 56.795113][ T5074] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 56.798212][ T5077] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 56.806121][ T5074] REISERFS (device loop0): using ordered data mode [ 56.819071][ T5073] reiserfs: using flush barriers [ 56.825312][ T5076] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 56.831157][ T5073] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 56.843200][ T5074] reiserfs: using flush barriers [ 56.864315][ T5076] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 56.865843][ T5075] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 56.874880][ T5077] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 56.886702][ T5075] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 56.896174][ T5079] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 56.904923][ T5076] REISERFS (device loop3): using ordered data mode [ 56.924698][ T5076] reiserfs: using flush barriers [ 56.924899][ T5074] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 56.930877][ T5076] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 56.947819][ T5075] REISERFS (device loop2): using ordered data mode [ 56.962478][ T5076] REISERFS (device loop3): checking transaction log (loop3) [ 56.970451][ T5077] REISERFS (device loop4): using ordered data mode [ 56.984674][ T5079] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 56.985008][ T5073] REISERFS (device loop1): checking transaction log (loop1) [ 57.003193][ T5077] reiserfs: using flush barriers [ 57.007634][ T5079] REISERFS (device loop5): using ordered data mode [ 57.017078][ T5077] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 57.027595][ T5079] reiserfs: using flush barriers [ 57.046631][ T5074] REISERFS (device loop0): checking transaction log (loop0) [ 57.050469][ T5075] reiserfs: using flush barriers [ 57.069622][ T5079] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 57.079700][ T5077] REISERFS (device loop4): checking transaction log (loop4) [ 57.103529][ T5075] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 57.164502][ T5075] REISERFS (device loop2): checking transaction log (loop2) [ 57.178738][ T5079] REISERFS (device loop5): checking transaction log (loop5) [ 57.233498][ T5073] REISERFS (device loop1): Using r5 hash to sort names [ 57.233843][ T5076] REISERFS (device loop3): Using r5 hash to sort names [pid 5079] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5073] <... mount resumed>) = 0 [pid 5076] <... mount resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5073] chdir("./file0" [pid 5076] chdir("./file0" [pid 5073] <... chdir resumed>) = 0 [pid 5076] <... chdir resumed>) = 0 [pid 5073] ioctl(4, LOOP_CLR_FD [pid 5076] ioctl(4, LOOP_CLR_FD [pid 5073] <... ioctl resumed>) = 0 [pid 5076] <... ioctl resumed>) = 0 [pid 5073] close(4 [pid 5076] close(4 [pid 5073] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5073] creat("./bus", 000 [pid 5076] creat("./bus", 000 [pid 5073] <... creat resumed>) = 4 [pid 5076] <... creat resumed>) = 4 [ 57.284033][ T5073] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 57.314179][ T5076] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5076] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5073] <... write resumed>) = 32 [pid 5073] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5073] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5073] write(5, 0x200000c0, 34136651 [pid 5076] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5073] <... write resumed>) = 3904 [pid 5076] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [ 57.377133][ T5077] REISERFS (device loop4): Using r5 hash to sort names [ 57.383020][ T5074] REISERFS (device loop0): Using r5 hash to sort names [ 57.395839][ T5074] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 57.415658][ T5077] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] ioctl(4, FS_IOC_GETVERSION [pid 5076] <... mmap resumed>) = 0x20000000 [pid 5074] <... mount resumed>) = 0 [pid 5073] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5076] write(5, 0x200000c0, 34136651 [pid 5074] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] write(-1, 0x20000080, 296 [pid 5074] <... openat resumed>) = 3 [pid 5073] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5074] chdir("./file0" [pid 5073] exit_group(0 [pid 5074] <... chdir resumed>) = 0 [pid 5073] <... exit_group resumed>) = ? [pid 5074] ioctl(4, LOOP_CLR_FD [pid 5073] +++ exited with 0 +++ [pid 5074] <... ioctl resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5074] close(4) = 0 [pid 5074] creat("./bus", 000 [pid 5076] <... write resumed>) = 3904 [pid 5076] ioctl(4, FS_IOC_GETVERSION [pid 5074] <... creat resumed>) = 4 [pid 5076] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5074] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5076] write(-1, 0x20000080, 296 [pid 5068] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5074] <... write resumed>) = 32 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 57.426638][ T5075] REISERFS (device loop2): Using r5 hash to sort names [ 57.459591][ T5079] REISERFS (device loop5): Using r5 hash to sort names [ 57.462247][ T5075] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] exit_group(0 [pid 5074] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5077] <... mount resumed>) = 0 [pid 5068] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... mount resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... exit_group resumed>) = ? [pid 5075] <... mount resumed>) = 0 [pid 5074] <... open resumed>) = 5 [pid 5068] lstat("./0/binderfs", [pid 5079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] chdir("./file0" [pid 5076] +++ exited with 0 +++ [pid 5075] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] <... chdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... mmap resumed>) = 0x20000000 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5068] unlink("./0/binderfs" [pid 5079] chdir("./file0" [pid 5077] ioctl(4, LOOP_CLR_FD [pid 5075] chdir("./file0" [pid 5074] write(5, 0x200000c0, 34136651 [pid 5079] <... chdir resumed>) = 0 [pid 5075] <... chdir resumed>) = 0 [pid 5079] ioctl(4, LOOP_CLR_FD [pid 5075] ioctl(4, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5075] <... ioctl resumed>) = 0 [pid 5079] close(4 [pid 5075] close(4 [pid 5068] <... unlink resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... ioctl resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5079] creat("./bus", 000 [pid 5077] close(4 [pid 5075] creat("./bus", 000 [pid 5070] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... creat resumed>) = 4 [pid 5077] <... close resumed>) = 0 [pid 5075] <... creat resumed>) = 4 [pid 5079] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5075] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5079] <... write resumed>) = 32 [pid 5077] creat("./bus", 000 [pid 5075] <... write resumed>) = 32 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5075] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5079] <... open resumed>) = 5 [pid 5075] <... open resumed>) = 5 [pid 5079] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5075] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5079] <... mmap resumed>) = 0x20000000 [pid 5075] <... mmap resumed>) = 0x20000000 [pid 5070] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] write(5, 0x200000c0, 34136651 [pid 5075] write(5, 0x200000c0, 34136651 [pid 5077] <... creat resumed>) = 4 [pid 5070] <... openat resumed>) = 3 [pid 5077] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5070] fstat(3, [pid 5077] <... write resumed>) = 32 [pid 5074] <... write resumed>) = 3904 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5074] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5074] write(-1, 0x20000080, 296 [pid 5070] getdents64(3, [pid 5077] <... open resumed>) = 5 [pid 5074] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5077] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5074] exit_group(0 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5074] <... exit_group resumed>) = ? [pid 5070] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... mmap resumed>) = 0x20000000 [pid 5074] +++ exited with 0 +++ [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5070] lstat("./0/binderfs", [pid 5077] write(5, 0x200000c0, 34136651 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 57.477867][ T5079] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] unlink("./0/binderfs") = 0 [pid 5067] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] unlink("./0/binderfs") = 0 [pid 5067] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... write resumed>) = 3904 [pid 5075] <... write resumed>) = 3904 [pid 5079] ioctl(4, FS_IOC_GETVERSION [pid 5075] ioctl(4, FS_IOC_GETVERSION [pid 5079] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5075] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5079] write(-1, 0x20000080, 296 [pid 5075] write(-1, 0x20000080, 296 [pid 5079] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5075] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5079] exit_group(0 [pid 5075] exit_group(0 [pid 5079] <... exit_group resumed>) = ? [pid 5075] <... exit_group resumed>) = ? [pid 5079] +++ exited with 0 +++ [pid 5077] <... write resumed>) = 3904 [pid 5075] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5077] ioctl(4, FS_IOC_GETVERSION [pid 5069] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5069] <... openat resumed>) = 3 [pid 5077] write(-1, 0x20000080, 296 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5069] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] exit_group(0 [pid 5072] <... openat resumed>) = 3 [pid 5077] <... exit_group resumed>) = ? [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(3, [pid 5069] lstat("./0/binderfs", [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5077] +++ exited with 0 +++ [pid 5072] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] --- 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=20 /* 0.20 s */} --- [pid 5069] unlink("./0/binderfs" [pid 5072] lstat("./0/binderfs", [pid 5069] <... unlink resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] unlink("./0/binderfs") = 0 [pid 5072] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./0/binderfs") = 0 [pid 5071] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = 0 [pid 5067] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5067] rmdir("./0/file0") = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./0") = 0 [pid 5067] mkdir("./1", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5090 ./strace-static-x86_64: Process 5090 attached [pid 5090] chdir("./1") = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5090] write(3, "1000", 4 [pid 5070] <... umount2 resumed>) = 0 [pid 5090] <... write resumed>) = 4 [pid 5068] <... umount2 resumed>) = 0 [pid 5090] close(3) = 0 [pid 5070] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./0/file0") = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./0") = 0 [pid 5070] mkdir("./1", 0777 [pid 5090] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5090] <... symlink resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] memfd_create("syzkaller", 0) = 3 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5092 [pid 5068] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5092 attached [pid 5068] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5092] chdir("./1" [pid 5068] getdents64(4, [pid 5092] <... chdir resumed>) = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5068] close(4 [pid 5092] <... setpgid resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] write(3, "1000", 4 [pid 5071] lstat("./0/file0", [pid 5092] <... write resumed>) = 4 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... close resumed>) = 0 [pid 5092] close(3 [pid 5071] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] rmdir("./0/file0" [pid 5092] symlink("/dev/binderfs", "./binderfs" [pid 5071] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5092] <... symlink resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 5068] <... rmdir resumed>) = 0 [pid 5092] memfd_create("syzkaller", 0 [pid 5071] fstat(4, [pid 5068] getdents64(3, [pid 5092] <... memfd_create resumed>) = 3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] getdents64(4, [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5092] <... mmap resumed>) = 0x7f619b0de000 [pid 5072] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, [pid 5068] close(3 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5068] <... close resumed>) = 0 [pid 5071] rmdir("./0/file0" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... rmdir resumed>) = 0 [pid 5068] rmdir("./0" [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5072] lstat("./0/file0", [pid 5071] <... close resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5071] rmdir("./0" [pid 5069] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] mkdir("./1", 0777 [pid 5071] mkdir("./1", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... mkdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] lstat("./0/file0", [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... openat resumed>) = 4 [pid 5071] close(3 [pid 5069] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5072] fstat(4, [pid 5071] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5093 [pid 5069] fstat(4, [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] close(3 [pid 5069] getdents64(4, [pid 5072] getdents64(4, [pid 5069] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] getdents64(4, [pid 5069] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 5093 attached [pid 5072] close(4 [pid 5069] rmdir("./0/file0" [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5094 [pid 5093] chdir("./1" [pid 5072] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5093] <... chdir resumed>) = 0 [pid 5072] rmdir("./0/file0" [pid 5069] getdents64(3, [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5093] <... prctl resumed>) = 0 [pid 5069] close(3 [pid 5093] setpgid(0, 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 5094 attached [pid 5093] <... setpgid resumed>) = 0 [pid 5072] getdents64(3, [pid 5069] rmdir("./0" [pid 5094] chdir("./1" [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5094] <... chdir resumed>) = 0 [pid 5093] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5069] mkdir("./1", 0777 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] write(3, "1000", 4 [pid 5072] <... close resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5094] <... prctl resumed>) = 0 [pid 5093] <... write resumed>) = 4 [pid 5072] rmdir("./0" [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5093] close(3 [pid 5069] <... openat resumed>) = 3 [pid 5093] <... close resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5093] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5094] setpgid(0, 0 [pid 5093] <... symlink resumed>) = 0 [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5072] mkdir("./1", 0777 [pid 5069] close(3 [pid 5094] <... setpgid resumed>) = 0 [pid 5093] memfd_create("syzkaller", 0 [pid 5069] <... close resumed>) = 0 [pid 5093] <... memfd_create resumed>) = 3 [pid 5072] <... mkdir resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5094] <... openat resumed>) = 3 [pid 5093] <... mmap resumed>) = 0x7f619b0de000 [pid 5072] <... openat resumed>) = 3 [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5095 [pid 5094] write(3, "1000", 4./strace-static-x86_64: Process 5095 attached [pid 5095] chdir("./1") = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] write(3, "1000", 4 [pid 5094] <... write resumed>) = 4 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5095] <... write resumed>) = 4 [pid 5095] close(3) = 0 [pid 5095] symlink("/dev/binderfs", "./binderfs" [pid 5094] close(3 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5095] <... symlink resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5072] close(3 [pid 5095] memfd_create("syzkaller", 0 [pid 5094] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... close resumed>) = 0 [pid 5095] <... memfd_create resumed>) = 3 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5094] <... symlink resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5096 attached [pid 5094] memfd_create("syzkaller", 0) = 3 [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5096 [pid 5096] chdir("./1" [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5096] <... chdir resumed>) = 0 [pid 5094] <... mmap resumed>) = 0x7f619b0de000 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] setpgid(0, 0) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5096] write(3, "1000", 4) = 4 [pid 5096] close(3) = 0 [pid 5096] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5096] memfd_create("syzkaller", 0) = 3 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5090] <... write resumed>) = 4194304 [pid 5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5090] munmap(0x7f619b0de000, 4194304) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5090] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5090] close(3) = 0 [pid 5090] mkdir("./file0", 0777) = 0 [ 58.116720][ T5090] loop0: detected capacity change from 0 to 8192 [ 58.154074][ T5090] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5090] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5096] <... write resumed>) = 4194304 [pid 5094] <... write resumed>) = 4194304 [pid 5092] <... write resumed>) = 4194304 [pid 5096] munmap(0x7f619b0de000, 4194304 [pid 5094] munmap(0x7f619b0de000, 4194304 [pid 5092] munmap(0x7f619b0de000, 4194304 [pid 5096] <... munmap resumed>) = 0 [pid 5094] <... munmap resumed>) = 0 [pid 5092] <... munmap resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5094] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5092] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5094] <... openat resumed>) = 4 [pid 5096] <... openat resumed>) = 4 [pid 5092] ioctl(4, LOOP_SET_FD, 3 [pid 5096] ioctl(4, LOOP_SET_FD, 3 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5096] <... ioctl resumed>) = 0 [pid 5095] <... write resumed>) = 4194304 [pid 5093] <... write resumed>) = 4194304 [pid 5096] close(3 [pid 5093] munmap(0x7f619b0de000, 4194304) = 0 [pid 5092] <... ioctl resumed>) = 0 [pid 5096] <... close resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5092] close(3 [pid 5096] mkdir("./file0", 0777 [pid 5095] munmap(0x7f619b0de000, 4194304 [pid 5093] <... openat resumed>) = 4 [pid 5092] <... close resumed>) = 0 [pid 5096] <... mkdir resumed>) = 0 [pid 5095] <... munmap resumed>) = 0 [pid 5094] <... ioctl resumed>) = 0 [pid 5093] ioctl(4, LOOP_SET_FD, 3 [pid 5092] mkdir("./file0", 0777 [pid 5096] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5094] close(3) = 0 [ 58.186358][ T5092] loop3: detected capacity change from 0 to 8192 [ 58.191139][ T5090] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 58.193208][ T5094] loop1: detected capacity change from 0 to 8192 [ 58.209720][ T5096] loop5: detected capacity change from 0 to 8192 [ 58.216381][ T5090] REISERFS (device loop0): using ordered data mode [ 58.223374][ T5090] reiserfs: using flush barriers [pid 5094] mkdir("./file0", 0777) = 0 [pid 5094] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5095] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5092] <... mkdir resumed>) = 0 [ 58.232271][ T5090] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 58.252994][ T5096] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 58.256537][ T5090] REISERFS (device loop0): checking transaction log (loop0) [ 58.266397][ T5093] loop4: detected capacity change from 0 to 8192 [pid 5092] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5095] <... openat resumed>) = 4 [ 58.282441][ T5094] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 58.300664][ T5095] loop2: detected capacity change from 0 to 8192 [ 58.308854][ T5092] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 58.316171][ T5096] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5095] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5095] close(3) = 0 [pid 5095] mkdir("./file0", 0777) = 0 [ 58.338873][ T5096] REISERFS (device loop5): using ordered data mode [ 58.345625][ T5096] reiserfs: using flush barriers [ 58.352256][ T5096] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 58.369001][ T5096] REISERFS (device loop5): checking transaction log (loop5) [pid 5095] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5093] <... ioctl resumed>) = 0 [pid 5093] close(3) = 0 [pid 5093] mkdir("./file0", 0777) = 0 [ 58.386416][ T5094] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 58.389023][ T5092] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 58.397895][ T5095] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 58.409603][ T5092] REISERFS (device loop3): using ordered data mode [ 58.424471][ T5092] reiserfs: using flush barriers [ 58.468555][ T5093] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 58.469293][ T5094] REISERFS (device loop1): using ordered data mode [ 58.482261][ T5092] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 58.488584][ T5094] reiserfs: using flush barriers [ 58.511170][ T5095] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 58.520224][ T5094] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 58.520515][ T5095] REISERFS (device loop2): using ordered data mode [ 58.553519][ T5093] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 58.562954][ T5093] REISERFS (device loop4): using ordered data mode [ 58.583853][ T5092] REISERFS (device loop3): checking transaction log (loop3) [ 58.588986][ T5095] reiserfs: using flush barriers [ 58.593547][ T5093] reiserfs: using flush barriers [ 58.605997][ T5093] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 58.630284][ T5094] REISERFS (device loop1): checking transaction log (loop1) [ 58.637102][ T5095] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 58.662151][ T5096] REISERFS (device loop5): Using r5 hash to sort names [ 58.668245][ T5093] REISERFS (device loop4): checking transaction log (loop4) [ 58.684593][ T5090] REISERFS (device loop0): Using r5 hash to sort names [ 58.691809][ T5090] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 58.702085][ T5095] REISERFS (device loop2): checking transaction log (loop2) [ 58.702252][ T5096] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5093] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5090] <... mount resumed>) = 0 [pid 5090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5090] chdir("./file0") = 0 [pid 5090] ioctl(4, LOOP_CLR_FD) = 0 [pid 5090] close(4 [pid 5096] <... mount resumed>) = 0 [pid 5096] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5090] <... close resumed>) = 0 [pid 5096] <... openat resumed>) = 3 [pid 5090] creat("./bus", 000 [pid 5096] chdir("./file0") = 0 [pid 5096] ioctl(4, LOOP_CLR_FD [pid 5090] <... creat resumed>) = 4 [pid 5096] <... ioctl resumed>) = 0 [pid 5090] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5096] close(4) = 0 [pid 5090] <... write resumed>) = 32 [pid 5096] creat("./bus", 000) = 4 [pid 5090] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5096] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5090] <... open resumed>) = 5 [pid 5096] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5090] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5096] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5090] <... mmap resumed>) = 0x20000000 [pid 5096] <... mmap resumed>) = 0x20000000 [pid 5096] write(5, 0x200000c0, 34136651) = 3904 [pid 5090] write(5, 0x200000c0, 34136651 [pid 5096] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5096] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5096] exit_group(0) = ? [pid 5096] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5072] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5090] <... write resumed>) = 3904 [pid 5072] <... openat resumed>) = 3 [pid 5090] ioctl(4, FS_IOC_GETVERSION [pid 5072] fstat(3, [pid 5090] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5090] write(-1, 0x20000080, 296 [pid 5072] getdents64(3, [pid 5090] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5090] exit_group(0 [pid 5072] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] <... exit_group resumed>) = ? [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5090] +++ exited with 0 +++ [pid 5072] lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [ 58.814668][ T5092] REISERFS (device loop3): Using r5 hash to sort names [ 58.821836][ T5092] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] unlink("./1/binderfs") = 0 [pid 5072] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... mount resumed>) = 0 [pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5092] chdir("./file0") = 0 [pid 5092] ioctl(4, LOOP_CLR_FD) = 0 [pid 5092] close(4) = 0 [pid 5092] creat("./bus", 000) = 4 [pid 5092] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5094] <... mount resumed>) = 0 [pid 5093] <... mount resumed>) = 0 [pid 5092] <... write resumed>) = 32 [pid 5094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5092] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5094] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = 3 [pid 5092] <... open resumed>) = 5 [pid 5067] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [ 58.904878][ T5094] REISERFS (device loop1): Using r5 hash to sort names [ 58.907295][ T5093] REISERFS (device loop4): Using r5 hash to sort names [ 58.913072][ T5094] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 58.919779][ T5093] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5092] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5094] chdir("./file0" [pid 5093] chdir("./file0" [pid 5092] <... mmap resumed>) = 0x20000000 [pid 5072] <... umount2 resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5094] <... chdir resumed>) = 0 [pid 5093] <... chdir resumed>) = 0 [pid 5092] write(5, 0x200000c0, 34136651 [pid 5072] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5094] ioctl(4, LOOP_CLR_FD [pid 5093] ioctl(4, LOOP_CLR_FD [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... openat resumed>) = 3 [pid 5094] <... ioctl resumed>) = 0 [pid 5093] <... ioctl resumed>) = 0 [pid 5072] lstat("./1/file0", [pid 5094] close(4 [pid 5093] close(4 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5094] <... close resumed>) = 0 [pid 5093] <... close resumed>) = 0 [pid 5094] creat("./bus", 000 [pid 5093] creat("./bus", 000 [pid 5072] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] fstat(3, [pid 5094] <... creat resumed>) = 4 [pid 5093] <... creat resumed>) = 4 [pid 5092] <... write resumed>) = 3904 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5094] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5093] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5092] ioctl(4, FS_IOC_GETVERSION [pid 5072] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5094] <... write resumed>) = 32 [pid 5092] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5094] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5093] <... write resumed>) = 32 [pid 5092] write(-1, 0x20000080, 296 [pid 5072] <... openat resumed>) = 4 [pid 5067] getdents64(3, [pid 5094] <... open resumed>) = 5 [pid 5093] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5092] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] fstat(4, [pid 5094] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5093] <... open resumed>) = 5 [pid 5092] exit_group(0 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5092] <... exit_group resumed>) = ? [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5094] <... mmap resumed>) = 0x20000000 [pid 5093] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5092] +++ exited with 0 +++ [pid 5072] getdents64(4, [pid 5067] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [ 58.958359][ T5095] REISERFS (device loop2): Using r5 hash to sort names [pid 5094] write(5, 0x200000c0, 34136651 [pid 5093] <... mmap resumed>) = 0x20000000 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 s */} --- [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5093] write(5, 0x200000c0, 34136651 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] lstat("./1/binderfs", [pid 5095] <... mount resumed>) = 0 [pid 5067] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] close(4 [pid 5070] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5067] unlink("./1/binderfs" [pid 5072] rmdir("./1/file0" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... unlink resumed>) = 0 [pid 5095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(3, [pid 5070] <... openat resumed>) = 3 [pid 5070] fstat(3, [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5095] chdir("./file0") = 0 [pid 5072] close(3 [pid 5070] getdents64(3, [pid 5094] <... write resumed>) = 3904 [pid 5093] <... write resumed>) = 3904 [pid 5072] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] rmdir("./1" [pid 5094] ioctl(4, FS_IOC_GETVERSION [pid 5093] ioctl(4, FS_IOC_GETVERSION [pid 5070] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5095] ioctl(4, LOOP_CLR_FD [pid 5093] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5072] <... rmdir resumed>) = 0 [pid 5094] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5093] write(-1, 0x20000080, 296 [pid 5072] mkdir("./2", 0777 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5094] write(-1, 0x20000080, 296 [pid 5093] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5095] <... ioctl resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5094] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5070] lstat("./1/binderfs", [pid 5093] exit_group(0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5094] exit_group(0 [pid 5093] <... exit_group resumed>) = ? [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] unlink("./1/binderfs" [pid 5095] close(4) = 0 [pid 5095] creat("./bus", 000) = 4 [pid 5094] <... exit_group resumed>) = ? [pid 5070] <... unlink resumed>) = 0 [pid 5095] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5093] +++ exited with 0 +++ [ 59.004528][ T5095] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5094] +++ exited with 0 +++ [pid 5072] <... openat resumed>) = 3 [pid 5070] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5095] <... write resumed>) = 32 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] --- 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 5095] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5072] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5095] <... open resumed>) = 5 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5095] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5071] fstat(3, [pid 5068] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5095] <... mmap resumed>) = 0x20000000 [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5103 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5095] write(5, 0x200000c0, 34136651 [pid 5071] getdents64(3, [pid 5068] fstat(3, [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 5103 attached [pid 5095] <... write resumed>) = 3904 [pid 5071] lstat("./1/binderfs", [pid 5068] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5103] chdir("./2" [pid 5095] ioctl(4, FS_IOC_GETVERSION [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5103] <... chdir resumed>) = 0 [pid 5095] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5071] unlink("./1/binderfs" [pid 5068] lstat("./1/binderfs", [pid 5095] write(-1, 0x20000080, 296 [pid 5071] <... unlink resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5095] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5071] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] unlink("./1/binderfs" [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] exit_group(0 [pid 5068] <... unlink resumed>) = 0 [pid 5103] <... prctl resumed>) = 0 [pid 5095] <... exit_group resumed>) = ? [pid 5068] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5103] setpgid(0, 0 [pid 5095] +++ exited with 0 +++ [pid 5103] <... setpgid resumed>) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5103] <... openat resumed>) = 3 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5103] write(3, "1000", 4 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5103] <... write resumed>) = 4 [pid 5067] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5103] close(3 [pid 5069] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 5103] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5103] symlink("/dev/binderfs", "./binderfs" [pid 5069] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5103] <... symlink resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5103] memfd_create("syzkaller", 0 [pid 5069] lstat("./1/binderfs", [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5103] <... memfd_create resumed>) = 3 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] unlink("./1/binderfs" [pid 5067] lstat("./1/file0", [pid 5103] <... mmap resumed>) = 0x7f619b0de000 [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5067] rmdir("./1/file0") = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./1") = 0 [pid 5067] mkdir("./2", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5104 ./strace-static-x86_64: Process 5104 attached [pid 5104] chdir("./2") = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5104] memfd_create("syzkaller", 0) = 3 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... umount2 resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5070] fstat(4, [pid 5071] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(4, [pid 5071] lstat("./1/file0", [pid 5070] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5071] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(4) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] rmdir("./1/file0" [pid 5068] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(4, [pid 5070] getdents64(3, [pid 5068] lstat("./1/file0", [pid 5103] <... write resumed>) = 4194304 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5103] munmap(0x7f619b0de000, 4194304 [pid 5071] getdents64(4, [pid 5070] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] <... close resumed>) = 0 [pid 5068] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5103] <... munmap resumed>) = 0 [pid 5071] getdents64(4, [pid 5070] rmdir("./1" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5103] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5103] <... openat resumed>) = 4 [pid 5071] close(4 [pid 5070] mkdir("./2", 0777 [pid 5103] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... close resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 5103] <... ioctl resumed>) = 0 [pid 5071] rmdir("./1/file0" [pid 5070] <... close resumed>) = 0 [pid 5068] fstat(4, [pid 5104] <... write resumed>) = 4194304 [pid 5103] close(3 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... umount2 resumed>) = 0 [pid 5104] munmap(0x7f619b0de000, 4194304 [pid 5103] <... close resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5103] mkdir("./file0", 0777 [pid 5071] getdents64(3, [pid 5068] getdents64(4, ./strace-static-x86_64: Process 5105 attached [pid 5104] <... munmap resumed>) = 0 [pid 5103] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5105 [pid 5069] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5105] chdir("./2" [pid 5103] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5071] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(4, [pid 5105] <... chdir resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./1" [pid 5069] lstat("./1/file0", [pid 5068] close(4) = 0 [pid 5068] rmdir("./1/file0" [pid 5071] <... rmdir resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5071] mkdir("./2", 0777 [pid 5069] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./1" [pid 5071] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... rmdir resumed>) = 0 [pid 5068] mkdir("./2", 0777 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... mkdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 4 [ 59.407018][ T5103] loop5: detected capacity change from 0 to 8192 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] fstat(4, [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5105] <... prctl resumed>) = 0 [pid 5071] close(3 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5107 [pid 5104] <... openat resumed>) = 4 [pid 5104] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5105] setpgid(0, 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5108 attached ./strace-static-x86_64: Process 5107 attached [pid 5105] <... setpgid resumed>) = 0 [pid 5069] getdents64(4, [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5108 [pid 5069] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./1/file0" [pid 5105] <... openat resumed>) = 3 [pid 5069] <... rmdir resumed>) = 0 [pid 5105] write(3, "1000", 4 [pid 5069] getdents64(3, [pid 5105] <... write resumed>) = 4 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5105] close(3) = 0 [pid 5069] close(3 [pid 5105] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5069] <... close resumed>) = 0 [pid 5105] memfd_create("syzkaller", 0) = 3 [pid 5069] rmdir("./1" [pid 5108] chdir("./2" [pid 5107] chdir("./2" [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5107] <... chdir resumed>) = 0 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5107] setpgid(0, 0) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5107] write(3, "1000", 4) = 4 [pid 5107] close(3 [pid 5069] mkdir("./2", 0777 [pid 5107] <... close resumed>) = 0 [pid 5107] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5108] <... chdir resumed>) = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] memfd_create("syzkaller", 0 [pid 5105] <... mmap resumed>) = 0x7f619b0de000 [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5108] <... prctl resumed>) = 0 [pid 5107] <... memfd_create resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5108] setpgid(0, 0 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5108] <... setpgid resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5107] <... mmap resumed>) = 0x7f619b0de000 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5108] <... openat resumed>) = 3 [pid 5104] <... ioctl resumed>) = 0 [ 59.447248][ T5103] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.465155][ T5103] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 59.483991][ T5104] loop0: detected capacity change from 0 to 8192 [pid 5069] close(3 [pid 5108] write(3, "1000", 4 [pid 5104] close(3 [pid 5069] <... close resumed>) = 0 [pid 5108] <... write resumed>) = 4 [pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5104] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5108] close(3) = 0 [pid 5108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5108] memfd_create("syzkaller", 0) = 3 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5104] mkdir("./file0", 0777 [pid 5108] <... mmap resumed>) = 0x7f619b0de000 ./strace-static-x86_64: Process 5109 attached [pid 5104] <... mkdir resumed>) = 0 [pid 5104] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5109 [ 59.546568][ T5103] REISERFS (device loop5): using ordered data mode [ 59.553139][ T5103] reiserfs: using flush barriers [ 59.560152][ T5103] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5109] chdir("./2") = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5109] write(3, "1000", 4) = 4 [pid 5109] close(3) = 0 [pid 5109] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5109] memfd_create("syzkaller", 0) = 3 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5107] <... write resumed>) = 4194304 [pid 5107] munmap(0x7f619b0de000, 4194304) = 0 [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 59.587434][ T5104] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.613546][ T5104] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 59.630635][ T5104] REISERFS (device loop0): using ordered data mode [pid 5107] ioctl(4, LOOP_SET_FD, 3 [pid 5108] <... write resumed>) = 4194304 [pid 5108] munmap(0x7f619b0de000, 4194304) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 59.652581][ T5107] loop1: detected capacity change from 0 to 8192 [ 59.663836][ T5103] REISERFS (device loop5): checking transaction log (loop5) [ 59.673863][ T5104] reiserfs: using flush barriers [ 59.680048][ T5104] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.687794][ T5108] loop4: detected capacity change from 0 to 8192 [pid 5108] ioctl(4, LOOP_SET_FD, 3 [pid 5107] <... ioctl resumed>) = 0 [pid 5107] close(3) = 0 [pid 5107] mkdir("./file0", 0777) = 0 [pid 5107] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5108] <... ioctl resumed>) = 0 [pid 5108] close(3) = 0 [ 59.697747][ T5104] REISERFS (device loop0): checking transaction log (loop0) [pid 5108] mkdir("./file0", 0777) = 0 [pid 5108] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5105] <... write resumed>) = 4194304 [ 59.757583][ T5107] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.778944][ T5108] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5105] munmap(0x7f619b0de000, 4194304) = 0 [pid 5105] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 59.813848][ T5107] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 59.823665][ T5107] REISERFS (device loop1): using ordered data mode [ 59.830817][ T5107] reiserfs: using flush barriers [ 59.837515][ T5108] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 59.842780][ T5107] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.846797][ T5108] REISERFS (device loop4): using ordered data mode [ 59.863361][ T5105] loop3: detected capacity change from 0 to 8192 [ 59.876161][ T5107] REISERFS (device loop1): checking transaction log (loop1) [pid 5105] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5105] close(3) = 0 [pid 5105] mkdir("./file0", 0777) = 0 [pid 5105] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5109] <... write resumed>) = 4194304 [pid 5109] munmap(0x7f619b0de000, 4194304) = 0 [pid 5109] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5109] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5109] close(3) = 0 [pid 5109] mkdir("./file0", 0777) = 0 [ 59.926636][ T5104] REISERFS (device loop0): Using r5 hash to sort names [ 59.939069][ T5105] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.955836][ T5109] loop2: detected capacity change from 0 to 8192 [ 59.966251][ T5108] reiserfs: using flush barriers [ 59.974026][ T5109] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.988351][ T5108] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.995400][ T5105] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 60.005493][ T5104] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5109] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5104] <... mount resumed>) = 0 [ 60.016366][ T5103] REISERFS (device loop5): Using r5 hash to sort names [ 60.023040][ T5109] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 60.039493][ T5109] REISERFS (device loop2): using ordered data mode [ 60.046475][ T5109] reiserfs: using flush barriers [ 60.051301][ T5108] REISERFS (device loop4): checking transaction log (loop4) [ 60.052962][ T5105] REISERFS (device loop3): using ordered data mode [pid 5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5104] chdir("./file0") = 0 [pid 5104] ioctl(4, LOOP_CLR_FD) = 0 [pid 5104] close(4 [pid 5103] <... mount resumed>) = 0 [pid 5103] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5103] chdir("./file0") = 0 [pid 5103] ioctl(4, LOOP_CLR_FD) = 0 [pid 5103] close(4) = 0 [pid 5103] creat("./bus", 000) = 4 [pid 5103] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5104] <... close resumed>) = 0 [ 60.065383][ T5109] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 60.065641][ T5105] reiserfs: using flush barriers [ 60.090076][ T5103] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 60.091063][ T5105] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 60.107817][ T5109] REISERFS (device loop2): checking transaction log (loop2) [pid 5104] creat("./bus", 000 [pid 5103] <... write resumed>) = 32 [pid 5103] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5103] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5104] <... creat resumed>) = 4 [pid 5103] <... mmap resumed>) = 0x20000000 [pid 5104] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5103] write(5, 0x200000c0, 34136651 [pid 5104] <... write resumed>) = 32 [pid 5104] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5104] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5104] write(5, 0x200000c0, 34136651 [pid 5103] <... write resumed>) = 3904 [pid 5103] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5103] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5104] <... write resumed>) = 3904 [pid 5103] exit_group(0 [pid 5104] ioctl(4, FS_IOC_GETVERSION [pid 5103] <... exit_group resumed>) = ? [pid 5104] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5103] +++ exited with 0 +++ [pid 5104] write(-1, 0x20000080, 296 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5104] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5104] exit_group(0 [pid 5072] <... restart_syscall resumed>) = 0 [pid 5104] <... exit_group resumed>) = ? [pid 5104] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5072] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, [pid 5067] <... restart_syscall resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5072] unlink("./2/binderfs" [ 60.135447][ T5107] REISERFS (device loop1): Using r5 hash to sort names [ 60.154833][ T5107] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5067] fstat(3, [pid 5107] <... mount resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5107] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] getdents64(3, [pid 5107] <... openat resumed>) = 3 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5107] chdir("./file0" [pid 5067] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5107] <... chdir resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] ioctl(4, LOOP_CLR_FD [pid 5067] lstat("./2/binderfs", [pid 5107] <... ioctl resumed>) = 0 [pid 5067] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5107] close(4 [pid 5067] unlink("./2/binderfs" [pid 5107] <... close resumed>) = 0 [pid 5107] creat("./bus", 000 [pid 5067] <... unlink resumed>) = 0 [pid 5107] <... creat resumed>) = 4 [pid 5067] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5107] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5107] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5107] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 60.184885][ T5105] REISERFS (device loop3): checking transaction log (loop3) [pid 5107] write(5, 0x200000c0, 34136651) = 3904 [pid 5107] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5107] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5072] <... umount2 resumed>) = 0 [pid 5107] exit_group(0 [pid 5072] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5107] <... exit_group resumed>) = ? [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./2/file0", [pid 5107] +++ exited with 0 +++ [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./2/file0") = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] rmdir("./2" [pid 5068] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./3", 0777 [pid 5068] <... openat resumed>) = 3 [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5068] unlink("./2/binderfs" [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5115 ./strace-static-x86_64: Process 5115 attached [pid 5115] chdir("./3") = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5115] setpgid(0, 0) = 0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5115] write(3, "1000", 4) = 4 [pid 5115] close(3) = 0 [pid 5115] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5115] memfd_create("syzkaller", 0) = 3 [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 60.338409][ T5108] REISERFS (device loop4): Using r5 hash to sort names [pid 5108] <... mount resumed>) = 0 [ 60.380837][ T5108] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 60.407604][ T5109] REISERFS (device loop2): Using r5 hash to sort names [pid 5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5108] chdir("./file0") = 0 [pid 5108] ioctl(4, LOOP_CLR_FD) = 0 [pid 5108] close(4) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5108] creat("./bus", 000) = 4 [pid 5108] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5108] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5108] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5108] write(5, 0x200000c0, 34136651 [pid 5067] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5108] <... write resumed>) = 3904 [pid 5108] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5108] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5108] exit_group(0) = ? [pid 5108] +++ exited with 0 +++ [pid 5067] <... openat resumed>) = 4 [ 60.449816][ T5109] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] --- 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=19 /* 0.19 s */} --- [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5109] <... mount resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(4, [pid 5109] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5109] chdir("./file0") = 0 [pid 5109] ioctl(4, LOOP_CLR_FD) = 0 [pid 5109] close(4) = 0 [pid 5071] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5109] creat("./bus", 000) = 4 [pid 5109] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5071] <... openat resumed>) = 3 [pid 5109] <... write resumed>) = 32 [pid 5071] fstat(3, [pid 5067] getdents64(4, [pid 5109] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5109] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] close(4 [pid 5071] getdents64(3, [pid 5067] <... close resumed>) = 0 [pid 5109] write(5, 0x200000c0, 34136651 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] rmdir("./2/file0" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./2/binderfs", [pid 5067] <... rmdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./2/binderfs" [pid 5067] getdents64(3, [pid 5071] <... unlink resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] close(3) = 0 [pid 5067] rmdir("./2" [pid 5109] <... write resumed>) = 3904 [pid 5109] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [ 60.534032][ T5105] REISERFS (device loop3): Using r5 hash to sort names [ 60.541214][ T5105] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5109] write(-1, 0x20000080, 296 [pid 5068] <... umount2 resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5109] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5109] exit_group(0 [pid 5105] <... mount resumed>) = 0 [pid 5068] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] mkdir("./3", 0777 [pid 5109] <... exit_group resumed>) = ? [pid 5109] +++ exited with 0 +++ [pid 5105] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... mkdir resumed>) = 0 [pid 5105] <... openat resumed>) = 3 [pid 5105] chdir("./file0" [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5068] lstat("./2/file0", [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5105] <... chdir resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5105] ioctl(4, LOOP_CLR_FD [pid 5068] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5105] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5105] close(4 [pid 5068] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] close(3 [pid 5105] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5067] <... close resumed>) = 0 [pid 5105] creat("./bus", 000 [pid 5069] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] fstat(4, [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5105] <... creat resumed>) = 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5105] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5069] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] getdents64(4, [pid 5067] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5116 [pid 5105] <... write resumed>) = 32 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5105] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5069] fstat(3, [pid 5068] getdents64(4, [pid 5105] <... open resumed>) = 5 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5105] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5069] getdents64(3, [pid 5068] close(4 [pid 5105] <... mmap resumed>) = 0x20000000 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] <... close resumed>) = 0 ./strace-static-x86_64: Process 5116 attached [pid 5105] write(5, 0x200000c0, 34136651 [pid 5069] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] rmdir("./2/file0" [pid 5116] chdir("./3" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... rmdir resumed>) = 0 [pid 5116] <... chdir resumed>) = 0 [pid 5069] lstat("./2/binderfs", [pid 5068] getdents64(3, [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5116] <... prctl resumed>) = 0 [pid 5069] unlink("./2/binderfs" [pid 5068] close(3 [pid 5116] setpgid(0, 0 [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5116] <... setpgid resumed>) = 0 [pid 5069] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] rmdir("./2" [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... rmdir resumed>) = 0 [pid 5116] <... openat resumed>) = 3 [pid 5068] mkdir("./3", 0777 [pid 5116] write(3, "1000", 4 [pid 5068] <... mkdir resumed>) = 0 [pid 5116] <... write resumed>) = 4 [pid 5115] <... write resumed>) = 4194304 [pid 5105] <... write resumed>) = 3904 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5116] close(3 [pid 5105] ioctl(4, FS_IOC_GETVERSION [pid 5068] <... openat resumed>) = 3 [pid 5116] <... close resumed>) = 0 [pid 5105] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5116] symlink("/dev/binderfs", "./binderfs" [pid 5115] munmap(0x7f619b0de000, 4194304 [pid 5105] write(-1, 0x20000080, 296 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5116] <... symlink resumed>) = 0 [pid 5115] <... munmap resumed>) = 0 [pid 5105] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5068] close(3 [pid 5116] memfd_create("syzkaller", 0 [pid 5115] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5105] exit_group(0 [pid 5068] <... close resumed>) = 0 [pid 5116] <... memfd_create resumed>) = 3 [pid 5105] <... exit_group resumed>) = ? [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] +++ exited with 0 +++ [pid 5116] <... mmap resumed>) = 0x7f619b0de000 [pid 5115] <... openat resumed>) = 4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=26 /* 0.26 s */} --- [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5117 [pid 5070] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./2/binderfs"./strace-static-x86_64: Process 5117 attached ) = 0 [pid 5117] chdir("./3" [pid 5115] ioctl(4, LOOP_SET_FD, 3 [pid 5070] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5117] <... chdir resumed>) = 0 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5117] setpgid(0, 0) = 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] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5117] memfd_create("syzkaller", 0) = 3 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5115] <... ioctl resumed>) = 0 [pid 5115] close(3) = 0 [pid 5115] mkdir("./file0", 0777) = 0 [pid 5115] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 60.714726][ T5115] loop5: detected capacity change from 0 to 8192 [pid 5071] lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./2/file0") = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./2") = 0 [pid 5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5071] mkdir("./3", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5119 [ 60.767704][ T5115] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 60.784152][ T5115] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 60.795032][ T5115] REISERFS (device loop5): using ordered data mode [ 60.802057][ T5115] reiserfs: using flush barriers [pid 5117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5119 attached [pid 5119] chdir("./3") = 0 [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5119] setpgid(0, 0) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5119] write(3, "1000", 4) = 4 [pid 5069] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] <... close resumed>) = 0 [pid 5069] lstat("./2/file0", [pid 5119] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5119] <... symlink resumed>) = 0 [pid 5069] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] memfd_create("syzkaller", 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] <... memfd_create resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... openat resumed>) = 4 [pid 5119] <... mmap resumed>) = 0x7f619b0de000 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [ 60.823552][ T5115] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./2/file0") = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./2") = 0 [pid 5069] mkdir("./3", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5116] <... write resumed>) = 4194304 [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5120 ./strace-static-x86_64: Process 5120 attached [pid 5116] munmap(0x7f619b0de000, 4194304 [pid 5120] chdir("./3" [pid 5116] <... munmap resumed>) = 0 [pid 5120] <... chdir resumed>) = 0 [pid 5117] <... write resumed>) = 4194304 [ 60.873875][ T5115] REISERFS (device loop5): checking transaction log (loop5) [pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5117] munmap(0x7f619b0de000, 4194304 [pid 5116] <... openat resumed>) = 4 [pid 5120] <... prctl resumed>) = 0 [pid 5119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5117] <... munmap resumed>) = 0 [pid 5116] ioctl(4, LOOP_SET_FD, 3 [pid 5120] setpgid(0, 0 [pid 5117] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5116] <... ioctl resumed>) = 0 [pid 5120] <... setpgid resumed>) = 0 [pid 5117] <... openat resumed>) = 4 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] ioctl(4, LOOP_SET_FD, 3 [pid 5120] <... openat resumed>) = 3 [pid 5117] <... ioctl resumed>) = 0 [pid 5116] close(3 [pid 5120] write(3, "1000", 4) = 4 [pid 5117] close(3 [pid 5116] <... close resumed>) = 0 [pid 5120] close(3) = 0 [pid 5117] <... close resumed>) = 0 [pid 5116] mkdir("./file0", 0777 [pid 5120] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5117] mkdir("./file0", 0777 [pid 5116] <... mkdir resumed>) = 0 [pid 5120] memfd_create("syzkaller", 0) = 3 [pid 5117] <... mkdir resumed>) = 0 [pid 5116] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5117] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./2/file0") = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [ 60.954352][ T5116] loop0: detected capacity change from 0 to 8192 [ 60.963810][ T5117] loop1: detected capacity change from 0 to 8192 [ 60.987598][ T5116] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5070] close(3) = 0 [pid 5070] rmdir("./2") = 0 [pid 5070] mkdir("./3", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5123 [ 61.016355][ T5117] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.049053][ T5116] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal ./strace-static-x86_64: Process 5123 attached [pid 5123] chdir("./3") = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5123] setpgid(0, 0) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3) = 0 [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5123] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5119] <... write resumed>) = 4194304 [pid 5123] memfd_create("syzkaller", 0) = 3 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5119] munmap(0x7f619b0de000, 4194304 [pid 5115] <... mount resumed>) = 0 [pid 5119] <... munmap resumed>) = 0 [ 61.061084][ T5115] REISERFS (device loop5): Using r5 hash to sort names [ 61.063500][ T5117] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 61.088463][ T5115] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 61.098715][ T5117] REISERFS (device loop1): using ordered data mode [ 61.106484][ T5117] reiserfs: using flush barriers [pid 5115] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5119] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5115] <... openat resumed>) = 3 [pid 5119] <... openat resumed>) = 4 [pid 5115] chdir("./file0" [pid 5119] ioctl(4, LOOP_SET_FD, 3 [pid 5115] <... chdir resumed>) = 0 [pid 5119] <... ioctl resumed>) = 0 [pid 5115] ioctl(4, LOOP_CLR_FD [pid 5119] close(3 [pid 5115] <... ioctl resumed>) = 0 [pid 5119] <... close resumed>) = 0 [pid 5115] close(4 [pid 5120] <... write resumed>) = 4194304 [pid 5119] mkdir("./file0", 0777 [pid 5115] <... close resumed>) = 0 [pid 5120] munmap(0x7f619b0de000, 4194304 [pid 5119] <... mkdir resumed>) = 0 [pid 5115] creat("./bus", 000 [pid 5120] <... munmap resumed>) = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5119] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5115] <... creat resumed>) = 4 [pid 5120] <... openat resumed>) = 4 [pid 5115] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5120] ioctl(4, LOOP_SET_FD, 3 [pid 5115] <... write resumed>) = 32 [ 61.108095][ T5116] REISERFS (device loop0): using ordered data mode [ 61.118553][ T5117] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 61.144931][ T5119] loop4: detected capacity change from 0 to 8192 [ 61.146354][ T5116] reiserfs: using flush barriers [ 61.157975][ T5117] REISERFS (device loop1): checking transaction log (loop1) [pid 5115] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5120] <... ioctl resumed>) = 0 [pid 5115] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5120] close(3 [pid 5115] <... mmap resumed>) = 0x20000000 [pid 5120] <... close resumed>) = 0 [pid 5120] mkdir("./file0", 0777 [ 61.177434][ T5120] loop2: detected capacity change from 0 to 8192 [ 61.189728][ T5119] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.194737][ T5116] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5115] write(5, 0x200000c0, 34136651 [pid 5120] <... mkdir resumed>) = 0 [pid 5120] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5115] <... write resumed>) = 3904 [pid 5115] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5115] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5115] exit_group(0) = ? [pid 5115] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 61.226797][ T5119] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 61.249098][ T5120] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./3/binderfs") = 0 [ 61.278539][ T5120] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 61.294586][ T5119] REISERFS (device loop4): using ordered data mode [ 61.316281][ T5120] REISERFS (device loop2): using ordered data mode [pid 5072] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5117] <... mount resumed>) = 0 [pid 5123] <... write resumed>) = 4194304 [pid 5117] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5123] munmap(0x7f619b0de000, 4194304 [pid 5117] <... openat resumed>) = 3 [pid 5123] <... munmap resumed>) = 0 [ 61.319023][ T5117] REISERFS (device loop1): Using r5 hash to sort names [ 61.325235][ T5119] reiserfs: using flush barriers [ 61.330752][ T5117] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 61.337323][ T5116] REISERFS (device loop0): checking transaction log (loop0) [ 61.354368][ T5120] reiserfs: using flush barriers [ 61.360286][ T5119] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5117] chdir("./file0" [pid 5123] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5117] <... chdir resumed>) = 0 [pid 5123] <... openat resumed>) = 4 [pid 5117] ioctl(4, LOOP_CLR_FD [pid 5123] ioctl(4, LOOP_SET_FD, 3 [pid 5117] <... ioctl resumed>) = 0 [pid 5117] close(4 [pid 5123] <... ioctl resumed>) = 0 [pid 5123] close(3) = 0 [pid 5123] mkdir("./file0", 0777) = 0 [pid 5117] <... close resumed>) = 0 [pid 5123] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [ 61.379098][ T5119] REISERFS (device loop4): checking transaction log (loop4) [ 61.387764][ T5123] loop3: detected capacity change from 0 to 8192 [pid 5117] creat("./bus", 000) = 4 [pid 5117] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5117] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5117] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5117] write(5, 0x200000c0, 34136651) = 3904 [pid 5117] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5117] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5117] exit_group(0) = ? [pid 5117] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 61.414123][ T5120] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 61.445824][ T5123] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.446039][ T5120] REISERFS (device loop2): checking transaction log (loop2) [pid 5068] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./3/binderfs") = 0 [pid 5068] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 61.518743][ T5123] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 61.529175][ T5123] REISERFS (device loop3): using ordered data mode [ 61.535883][ T5123] reiserfs: using flush barriers [ 61.552166][ T5123] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./3/file0") = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./3") = 0 [pid 5072] mkdir("./4", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5127 ./strace-static-x86_64: Process 5127 attached [ 61.620835][ T5123] REISERFS (device loop3): checking transaction log (loop3) [ 61.622604][ T5119] REISERFS (device loop4): Using r5 hash to sort names [pid 5127] chdir("./4") = 0 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5127] setpgid(0, 0) = 0 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5127] write(3, "1000", 4) = 4 [pid 5127] close(3) = 0 [pid 5127] symlink("/dev/binderfs", "./binderfs") = 0 [ 61.678088][ T5119] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 61.715875][ T5120] REISERFS (device loop2): Using r5 hash to sort names [pid 5127] memfd_create("syzkaller", 0) = 3 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5119] <... mount resumed>) = 0 [pid 5119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5119] chdir("./file0") = 0 [pid 5119] ioctl(4, LOOP_CLR_FD) = 0 [pid 5119] close(4) = 0 [pid 5119] creat("./bus", 000) = 4 [pid 5119] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5119] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5119] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 61.716054][ T5116] REISERFS (device loop0): Using r5 hash to sort names [ 61.723306][ T5120] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5119] write(5, 0x200000c0, 34136651) = 3904 [pid 5119] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5119] write(-1, 0x20000080, 296 [pid 5068] <... umount2 resumed>) = 0 [pid 5119] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5119] exit_group(0) = ? [pid 5127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5119] +++ exited with 0 +++ [pid 5071] --- 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 5068] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5120] <... mount resumed>) = 0 [pid 5071] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... openat resumed>) = 4 [pid 5120] <... openat resumed>) = 3 [pid 5071] <... openat resumed>) = 3 [pid 5068] fstat(4, [pid 5120] chdir("./file0" [pid 5071] fstat(3, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5120] <... chdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, [pid 5120] ioctl(4, LOOP_CLR_FD [pid 5071] getdents64(3, [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5120] <... ioctl resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] getdents64(4, [pid 5120] close(4 [ 61.792622][ T5116] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5120] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] close(4 [pid 5071] lstat("./3/binderfs", [pid 5068] <... close resumed>) = 0 [pid 5120] creat("./bus", 000 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] rmdir("./3/file0" [pid 5120] <... creat resumed>) = 4 [pid 5116] <... mount resumed>) = 0 [pid 5071] unlink("./3/binderfs" [pid 5068] <... rmdir resumed>) = 0 [pid 5120] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... unlink resumed>) = 0 [pid 5068] getdents64(3, [pid 5120] <... write resumed>) = 32 [pid 5116] <... openat resumed>) = 3 [pid 5071] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5120] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5116] chdir("./file0" [pid 5068] close(3 [pid 5120] <... open resumed>) = 5 [pid 5116] <... chdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5120] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5116] ioctl(4, LOOP_CLR_FD [pid 5068] rmdir("./3" [pid 5120] <... mmap resumed>) = 0x20000000 [pid 5116] <... ioctl resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5120] write(5, 0x200000c0, 34136651 [pid 5116] close(4 [pid 5068] mkdir("./4", 0777 [pid 5120] <... write resumed>) = 3904 [pid 5116] <... close resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5120] ioctl(4, FS_IOC_GETVERSION [pid 5116] creat("./bus", 000 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5120] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5116] <... creat resumed>) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5120] write(-1, 0x20000080, 296 [pid 5116] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5120] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5116] <... write resumed>) = 32 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5120] exit_group(0 [pid 5116] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5068] close(3 [pid 5120] <... exit_group resumed>) = ? [pid 5116] <... open resumed>) = 5 [pid 5068] <... close resumed>) = 0 [pid 5116] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5120] +++ exited with 0 +++ [pid 5116] <... mmap resumed>) = 0x20000000 [pid 5116] write(5, 0x200000c0, 34136651 [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5128 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5128 attached [pid 5069] fstat(3, [pid 5128] chdir("./4" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5128] <... chdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5128] <... prctl resumed>) = 0 [pid 5069] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5128] setpgid(0, 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5128] <... setpgid resumed>) = 0 [pid 5069] lstat("./3/binderfs", [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5128] <... openat resumed>) = 3 [pid 5116] <... write resumed>) = 3904 [pid 5069] unlink("./3/binderfs" [pid 5128] write(3, "1000", 4 [pid 5116] ioctl(4, FS_IOC_GETVERSION [pid 5069] <... unlink resumed>) = 0 [pid 5128] <... write resumed>) = 4 [pid 5116] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5069] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5128] close(3 [pid 5116] write(-1, 0x20000080, 296 [pid 5128] <... close resumed>) = 0 [pid 5116] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5128] symlink("/dev/binderfs", "./binderfs" [pid 5127] <... write resumed>) = 4194304 [pid 5116] exit_group(0 [pid 5128] <... symlink resumed>) = 0 [pid 5127] munmap(0x7f619b0de000, 4194304 [pid 5116] <... exit_group resumed>) = ? [pid 5128] memfd_create("syzkaller", 0 [pid 5127] <... munmap resumed>) = 0 [pid 5116] +++ exited with 0 +++ [pid 5128] <... memfd_create resumed>) = 3 [pid 5127] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5127] <... openat resumed>) = 4 [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5128] <... mmap resumed>) = 0x7f619b0de000 [pid 5067] <... restart_syscall resumed>) = 0 [ 61.912090][ T5123] REISERFS (device loop3): Using r5 hash to sort names [ 61.950074][ T5123] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5127] ioctl(4, LOOP_SET_FD, 3 [pid 5067] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] unlink("./3/binderfs") = 0 [pid 5067] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5127] <... ioctl resumed>) = 0 [pid 5123] <... mount resumed>) = 0 [pid 5127] close(3 [pid 5123] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5127] <... close resumed>) = 0 [pid 5123] <... openat resumed>) = 3 [pid 5127] mkdir("./file0", 0777 [pid 5123] chdir("./file0" [pid 5127] <... mkdir resumed>) = 0 [pid 5123] <... chdir resumed>) = 0 [pid 5127] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5123] ioctl(4, LOOP_CLR_FD) = 0 [pid 5123] close(4) = 0 [pid 5123] creat("./bus", 000) = 4 [ 61.964676][ T5127] loop5: detected capacity change from 0 to 8192 [pid 5123] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5123] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5123] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5123] write(5, 0x200000c0, 34136651 [pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5071] <... umount2 resumed>) = 0 [pid 5123] <... write resumed>) = 3904 [ 62.016676][ T5127] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 62.053891][ T5127] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5071] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5123] ioctl(4, FS_IOC_GETVERSION [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5071] lstat("./3/file0", [pid 5123] write(-1, 0x20000080, 296 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5123] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5071] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5123] exit_group(0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] <... exit_group resumed>) = ? [pid 5071] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5123] +++ exited with 0 +++ [pid 5071] <... openat resumed>) = 4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5071] fstat(4, [pid 5128] <... write resumed>) = 4194304 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5128] munmap(0x7f619b0de000, 4194304 [pid 5071] getdents64(4, [pid 5070] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5128] <... munmap resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5128] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] <... openat resumed>) = 3 [ 62.063140][ T5127] REISERFS (device loop5): using ordered data mode [pid 5128] <... openat resumed>) = 4 [pid 5071] getdents64(4, [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./3/binderfs") = 0 [pid 5070] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5128] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./3/file0") = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./3" [pid 5067] <... umount2 resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5067] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] mkdir("./4", 0777 [pid 5067] lstat("./3/file0", [pid 5071] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [ 62.104505][ T5127] reiserfs: using flush barriers [ 62.110684][ T5127] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.129011][ T5127] REISERFS (device loop5): checking transaction log (loop5) [ 62.136726][ T5128] loop1: detected capacity change from 0 to 8192 [pid 5128] <... ioctl resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5128] close(3 [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5130 [pid 5128] <... close resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5128] mkdir("./file0", 0777 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5128] <... mkdir resumed>) = 0 [pid 5067] getdents64(4, ./strace-static-x86_64: Process 5130 attached [pid 5128] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5067] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5130] chdir("./4" [pid 5067] getdents64(4, [pid 5130] <... chdir resumed>) = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5130] <... prctl resumed>) = 0 [pid 5067] close(4 [pid 5130] setpgid(0, 0) = 0 [pid 5067] <... close resumed>) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] rmdir("./3/file0" [pid 5130] <... openat resumed>) = 3 [pid 5130] write(3, "1000", 4 [pid 5067] <... rmdir resumed>) = 0 [pid 5130] <... write resumed>) = 4 [pid 5067] getdents64(3, [pid 5130] close(3) = 0 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5130] symlink("/dev/binderfs", "./binderfs" [pid 5067] close(3 [pid 5130] <... symlink resumed>) = 0 [pid 5130] memfd_create("syzkaller", 0 [pid 5067] <... close resumed>) = 0 [pid 5130] <... memfd_create resumed>) = 3 [pid 5069] <... umount2 resumed>) = 0 [pid 5067] rmdir("./3" [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5067] <... rmdir resumed>) = 0 [pid 5067] mkdir("./4", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [ 62.219501][ T5128] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5132 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5132 attached [pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5070] <... umount2 resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 62.274456][ T5128] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 62.276307][ T5127] REISERFS (device loop5): Using r5 hash to sort names [ 62.310543][ T5127] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5132] chdir("./4" [pid 5127] <... mount resumed>) = 0 [pid 5132] <... chdir resumed>) = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5132] setpgid(0, 0 [pid 5127] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 4 [pid 5132] <... setpgid resumed>) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5132] write(3, "1000", 4 [pid 5127] <... openat resumed>) = 3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(4, [pid 5132] <... write resumed>) = 4 [pid 5127] chdir("./file0" [pid 5070] lstat("./3/file0", [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5132] close(3 [pid 5127] <... chdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5132] <... close resumed>) = 0 [pid 5127] ioctl(4, LOOP_CLR_FD [pid 5070] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5132] symlink("/dev/binderfs", "./binderfs" [pid 5127] <... ioctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5132] <... symlink resumed>) = 0 [pid 5130] <... write resumed>) = 4194304 [pid 5132] memfd_create("syzkaller", 0) = 3 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5130] munmap(0x7f619b0de000, 4194304 [pid 5127] close(4 [pid 5070] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5130] <... munmap resumed>) = 0 [pid 5127] <... close resumed>) = 0 [pid 5130] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5127] creat("./bus", 000 [pid 5070] <... openat resumed>) = 4 [pid 5069] close(4 [pid 5130] <... openat resumed>) = 4 [pid 5130] ioctl(4, LOOP_SET_FD, 3 [pid 5127] <... creat resumed>) = 4 [pid 5070] fstat(4, [pid 5069] <... close resumed>) = 0 [ 62.320761][ T5128] REISERFS (device loop1): using ordered data mode [ 62.328248][ T5128] reiserfs: using flush barriers [ 62.337123][ T5128] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.357453][ T5128] REISERFS (device loop1): checking transaction log (loop1) [pid 5130] <... ioctl resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] rmdir("./3/file0" [pid 5127] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] <... rmdir resumed>) = 0 [pid 5127] <... write resumed>) = 32 [pid 5130] close(3 [pid 5127] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5070] getdents64(4, [pid 5069] getdents64(3, [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5130] <... close resumed>) = 0 [pid 5127] <... open resumed>) = 5 [pid 5070] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5130] mkdir("./file0", 0777 [pid 5127] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5070] close(4 [pid 5069] close(3 [pid 5130] <... mkdir resumed>) = 0 [pid 5127] <... mmap resumed>) = 0x20000000 [pid 5070] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5130] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5127] write(5, 0x200000c0, 34136651 [pid 5070] rmdir("./3/file0" [pid 5069] rmdir("./3" [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5069] mkdir("./4", 0777 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] rmdir("./3" [pid 5069] <... openat resumed>) = 3 [pid 5070] <... rmdir resumed>) = 0 [pid 5127] <... write resumed>) = 3904 [pid 5127] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5127] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5127] exit_group(0) = ? [pid 5127] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5070] mkdir("./4", 0777 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] <... restart_syscall resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] fstat(3, [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5070] close(3 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5134 [pid 5072] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./4/binderfs") = 0 [pid 5072] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5135 ./strace-static-x86_64: Process 5134 attached [ 62.395517][ T5130] loop4: detected capacity change from 0 to 8192 [ 62.426273][ T5130] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5134] chdir("./4"./strace-static-x86_64: Process 5135 attached ) = 0 [pid 5135] chdir("./4" [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] <... write resumed>) = 4194304 [pid 5135] <... chdir resumed>) = 0 [pid 5134] <... prctl resumed>) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5134] setpgid(0, 0 [pid 5135] <... prctl resumed>) = 0 [pid 5134] <... setpgid resumed>) = 0 [pid 5135] setpgid(0, 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5132] munmap(0x7f619b0de000, 4194304 [pid 5135] <... setpgid resumed>) = 0 [pid 5134] <... openat resumed>) = 3 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5134] write(3, "1000", 4 [pid 5135] <... openat resumed>) = 3 [pid 5134] <... write resumed>) = 4 [pid 5135] write(3, "1000", 4 [pid 5134] close(3 [pid 5132] <... munmap resumed>) = 0 [pid 5135] <... write resumed>) = 4 [pid 5134] <... close resumed>) = 0 [pid 5135] close(3 [pid 5134] symlink("/dev/binderfs", "./binderfs" [pid 5135] <... close resumed>) = 0 [pid 5134] <... symlink resumed>) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5135] symlink("/dev/binderfs", "./binderfs" [pid 5134] memfd_create("syzkaller", 0 [pid 5132] <... openat resumed>) = 4 [pid 5135] <... symlink resumed>) = 0 [pid 5134] <... memfd_create resumed>) = 3 [pid 5135] memfd_create("syzkaller", 0 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5135] <... memfd_create resumed>) = 3 [pid 5134] <... mmap resumed>) = 0x7f619b0de000 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 62.498781][ T5130] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 62.509318][ T5130] REISERFS (device loop4): using ordered data mode [ 62.517712][ T5130] reiserfs: using flush barriers [ 62.527453][ T5130] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5132] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5132] close(3) = 0 [pid 5132] mkdir("./file0", 0777) = 0 [pid 5132] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./4/file0") = 0 [ 62.554577][ T5132] loop0: detected capacity change from 0 to 8192 [ 62.583751][ T5132] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 62.589035][ T5130] REISERFS (device loop4): checking transaction log (loop4) [pid 5072] getdents64(3, [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./4") = 0 [pid 5072] mkdir("./5", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [ 62.628295][ T5132] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 62.643180][ T5132] REISERFS (device loop0): using ordered data mode [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5137 ./strace-static-x86_64: Process 5137 attached [pid 5137] chdir("./5") = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5137] write(3, "1000", 4) = 4 [pid 5137] close(3) = 0 [pid 5137] symlink("/dev/binderfs", "./binderfs") = 0 [ 62.674267][ T5128] REISERFS (device loop1): Using r5 hash to sort names [ 62.684768][ T5132] reiserfs: using flush barriers [ 62.689218][ T5128] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5137] memfd_create("syzkaller", 0 [pid 5134] <... write resumed>) = 4194304 [pid 5128] <... mount resumed>) = 0 [pid 5137] <... memfd_create resumed>) = 3 [pid 5134] munmap(0x7f619b0de000, 4194304 [pid 5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5134] <... munmap resumed>) = 0 [pid 5128] <... openat resumed>) = 3 [pid 5137] <... mmap resumed>) = 0x7f619b0de000 [pid 5128] chdir("./file0") = 0 [pid 5128] ioctl(4, LOOP_CLR_FD [pid 5134] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5128] <... ioctl resumed>) = 0 [pid 5134] ioctl(4, LOOP_SET_FD, 3 [pid 5128] close(4 [pid 5134] <... ioctl resumed>) = 0 [pid 5128] <... close resumed>) = 0 [pid 5128] creat("./bus", 000) = 4 [ 62.722353][ T5132] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.742855][ T5132] REISERFS (device loop0): checking transaction log (loop0) [ 62.765395][ T5134] loop2: detected capacity change from 0 to 8192 [pid 5128] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5128] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5134] close(3 [pid 5128] <... open resumed>) = 5 [pid 5134] <... close resumed>) = 0 [pid 5128] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5134] mkdir("./file0", 0777 [pid 5128] <... mmap resumed>) = 0x20000000 [pid 5134] <... mkdir resumed>) = 0 [pid 5128] write(5, 0x200000c0, 34136651 [pid 5134] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5135] <... write resumed>) = 4194304 [pid 5130] <... mount resumed>) = 0 [pid 5128] <... write resumed>) = 3904 [pid 5135] munmap(0x7f619b0de000, 4194304 [pid 5130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 62.786578][ T5130] REISERFS (device loop4): Using r5 hash to sort names [ 62.811670][ T5130] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 62.821568][ T5134] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5128] ioctl(4, FS_IOC_GETVERSION [pid 5137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5135] <... munmap resumed>) = 0 [pid 5130] <... openat resumed>) = 3 [pid 5128] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5135] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5130] chdir("./file0" [pid 5128] write(-1, 0x20000080, 296 [pid 5135] <... openat resumed>) = 4 [pid 5130] <... chdir resumed>) = 0 [pid 5128] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5135] ioctl(4, LOOP_SET_FD, 3 [pid 5130] ioctl(4, LOOP_CLR_FD [pid 5128] exit_group(0 [pid 5135] <... ioctl resumed>) = 0 [pid 5130] <... ioctl resumed>) = 0 [pid 5128] <... exit_group resumed>) = ? [pid 5130] close(4 [pid 5128] +++ exited with 0 +++ [pid 5130] <... close resumed>) = 0 [pid 5130] creat("./bus", 000 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5130] <... creat resumed>) = 4 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5130] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5068] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5130] <... write resumed>) = 32 [pid 5068] getdents64(3, [pid 5130] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5130] <... open resumed>) = 5 [pid 5068] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5130] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5130] <... mmap resumed>) = 0x20000000 [pid 5068] lstat("./4/binderfs", [pid 5130] write(5, 0x200000c0, 34136651 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./4/binderfs") = 0 [pid 5068] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] close(3) = 0 [pid 5135] mkdir("./file0", 0777) = 0 [pid 5135] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5130] <... write resumed>) = 3904 [pid 5130] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5130] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [ 62.838642][ T5134] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 62.850469][ T5134] REISERFS (device loop2): using ordered data mode [ 62.855529][ T5135] loop3: detected capacity change from 0 to 8192 [ 62.857658][ T5134] reiserfs: using flush barriers [pid 5130] exit_group(0) = ? [pid 5130] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./4/binderfs") = 0 [pid 5071] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 62.908526][ T5134] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.929743][ T5135] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 62.936339][ T5134] REISERFS (device loop2): checking transaction log (loop2) [pid 5068] lstat("./4/file0", [pid 5137] <... write resumed>) = 4194304 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5137] munmap(0x7f619b0de000, 4194304 [pid 5068] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] <... munmap resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5137] <... openat resumed>) = 4 [pid 5068] <... openat resumed>) = 4 [pid 5137] ioctl(4, LOOP_SET_FD, 3 [ 62.998686][ T5135] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 63.008432][ T5135] REISERFS (device loop3): using ordered data mode [ 63.016614][ T5135] reiserfs: using flush barriers [ 63.023281][ T5135] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 63.041141][ T5135] REISERFS (device loop3): checking transaction log (loop3) [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, [pid 5137] <... ioctl resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5137] close(3 [pid 5068] getdents64(4, [pid 5137] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5137] mkdir("./file0", 0777 [pid 5068] close(4 [pid 5137] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5137] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5068] rmdir("./4/file0") = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [ 63.050189][ T5137] loop5: detected capacity change from 0 to 8192 [pid 5068] rmdir("./4") = 0 [ 63.106552][ T5137] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 63.118718][ T5132] REISERFS (device loop0): Using r5 hash to sort names [ 63.133566][ T5137] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 63.144176][ T5135] REISERFS (device loop3): Using r5 hash to sort names [pid 5068] mkdir("./5", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5141 [pid 5071] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5141 attached [pid 5141] chdir("./5" [pid 5135] <... mount resumed>) = 0 [pid 5132] <... mount resumed>) = 0 [pid 5141] <... chdir resumed>) = 0 [pid 5135] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5135] <... openat resumed>) = 3 [pid 5132] <... openat resumed>) = 3 [pid 5141] <... prctl resumed>) = 0 [pid 5135] chdir("./file0" [pid 5132] chdir("./file0" [pid 5141] setpgid(0, 0 [pid 5135] <... chdir resumed>) = 0 [pid 5132] <... chdir resumed>) = 0 [pid 5141] <... setpgid resumed>) = 0 [ 63.151316][ T5135] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 63.161031][ T5137] REISERFS (device loop5): using ordered data mode [ 63.168196][ T5137] reiserfs: using flush barriers [ 63.174907][ T5137] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 63.191884][ T5132] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5135] ioctl(4, LOOP_CLR_FD [pid 5132] ioctl(4, LOOP_CLR_FD [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5141] write(3, "1000", 4) = 4 [pid 5071] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] close(3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5141] <... close resumed>) = 0 [pid 5071] lstat("./4/file0", [pid 5141] symlink("/dev/binderfs", "./binderfs" [pid 5135] <... ioctl resumed>) = 0 [pid 5132] <... ioctl resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5141] <... symlink resumed>) = 0 [pid 5071] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] memfd_create("syzkaller", 0) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5141] <... mmap resumed>) = 0x7f619b0de000 [pid 5071] <... openat resumed>) = 4 [pid 5135] close(4 [pid 5132] close(4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5135] <... close resumed>) = 0 [pid 5134] <... mount resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5135] creat("./bus", 000 [pid 5134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5132] creat("./bus", 000 [pid 5071] getdents64(4, [pid 5135] <... creat resumed>) = 4 [pid 5134] <... openat resumed>) = 3 [pid 5132] <... creat resumed>) = 4 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5135] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5134] chdir("./file0" [pid 5132] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5071] close(4 [pid 5135] <... write resumed>) = 32 [pid 5134] <... chdir resumed>) = 0 [pid 5132] <... write resumed>) = 32 [pid 5071] <... close resumed>) = 0 [pid 5135] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5134] ioctl(4, LOOP_CLR_FD [ 63.230951][ T5134] REISERFS (device loop2): Using r5 hash to sort names [ 63.240593][ T5137] REISERFS (device loop5): checking transaction log (loop5) [ 63.249281][ T5134] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5132] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5071] rmdir("./4/file0" [pid 5135] <... open resumed>) = 5 [pid 5134] <... ioctl resumed>) = 0 [pid 5132] <... open resumed>) = 5 [pid 5071] <... rmdir resumed>) = 0 [pid 5135] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5134] close(4 [pid 5132] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5071] getdents64(3, [pid 5135] <... mmap resumed>) = 0x20000000 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5134] <... close resumed>) = 0 [pid 5135] write(5, 0x200000c0, 34136651 [pid 5132] <... mmap resumed>) = 0x20000000 [pid 5134] creat("./bus", 000 [pid 5071] close(3 [pid 5135] <... write resumed>) = 3904 [pid 5132] write(5, 0x200000c0, 34136651 [pid 5071] <... close resumed>) = 0 [pid 5134] <... creat resumed>) = 4 [pid 5071] rmdir("./4" [pid 5135] ioctl(4, FS_IOC_GETVERSION [pid 5134] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5071] <... rmdir resumed>) = 0 [pid 5135] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5134] <... write resumed>) = 32 [pid 5071] mkdir("./5", 0777 [pid 5135] write(-1, 0x20000080, 296 [pid 5134] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5071] <... mkdir resumed>) = 0 [pid 5135] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5134] <... open resumed>) = 5 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5135] exit_group(0 [pid 5134] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5071] <... openat resumed>) = 3 [pid 5135] <... exit_group resumed>) = ? [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5134] <... mmap resumed>) = 0x20000000 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5135] +++ exited with 0 +++ [pid 5134] write(5, 0x200000c0, 34136651 [pid 5071] close(3) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5132] <... write resumed>) = 3904 [pid 5132] ioctl(4, FS_IOC_GETVERSION [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5142 [pid 5132] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5132] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5132] exit_group(0 [pid 5070] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5142 attached ) = 3 [pid 5142] chdir("./5" [pid 5070] fstat(3, [pid 5142] <... chdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] getdents64(3, [pid 5142] <... prctl resumed>) = 0 [pid 5134] <... write resumed>) = 3904 [pid 5132] <... exit_group resumed>) = ? [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5142] setpgid(0, 0 [pid 5134] ioctl(4, FS_IOC_GETVERSION [pid 5070] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5142] <... setpgid resumed>) = 0 [pid 5132] +++ exited with 0 +++ [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5134] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5070] lstat("./4/binderfs", [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5142] <... openat resumed>) = 3 [pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5134] write(-1, 0x20000080, 296 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5142] write(3, "1000", 4 [pid 5134] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5070] unlink("./4/binderfs" [pid 5142] <... write resumed>) = 4 [pid 5134] exit_group(0 [pid 5070] <... unlink resumed>) = 0 [pid 5067] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5142] close(3 [pid 5134] <... exit_group resumed>) = ? [pid 5070] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5142] <... close resumed>) = 0 [pid 5067] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5142] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... openat resumed>) = 3 [pid 5142] <... symlink resumed>) = 0 [pid 5067] fstat(3, [pid 5142] memfd_create("syzkaller", 0 [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5142] <... memfd_create resumed>) = 3 [pid 5067] getdents64(3, [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5142] <... mmap resumed>) = 0x7f619b0de000 [pid 5067] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] <... mount resumed>) = 0 [pid 5134] +++ exited with 0 +++ [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] --- 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 5067] lstat("./4/binderfs", [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5067] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5067] unlink("./4/binderfs") = 0 [pid 5067] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] <... openat resumed>) = 3 [ 63.360099][ T5137] REISERFS (device loop5): Using r5 hash to sort names [ 63.395306][ T5137] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5137] chdir("./file0" [pid 5069] <... openat resumed>) = 3 [pid 5137] <... chdir resumed>) = 0 [pid 5069] fstat(3, [pid 5137] ioctl(4, LOOP_CLR_FD [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5137] <... ioctl resumed>) = 0 [pid 5069] getdents64(3, [pid 5137] close(4 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5137] <... close resumed>) = 0 [pid 5069] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./4/binderfs" [pid 5137] creat("./bus", 000 [pid 5069] <... unlink resumed>) = 0 [pid 5141] <... write resumed>) = 4194304 [pid 5137] <... creat resumed>) = 4 [pid 5069] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5137] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5137] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5137] write(5, 0x200000c0, 34136651 [pid 5141] munmap(0x7f619b0de000, 4194304 [pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5141] <... munmap resumed>) = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5137] <... write resumed>) = 3904 [pid 5137] ioctl(4, FS_IOC_GETVERSION [pid 5141] <... openat resumed>) = 4 [pid 5137] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5141] ioctl(4, LOOP_SET_FD, 3 [pid 5137] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5137] exit_group(0) = ? [pid 5137] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5141] <... ioctl resumed>) = 0 [pid 5072] getdents64(3, [pid 5141] close(3 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5141] <... close resumed>) = 0 [pid 5072] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] mkdir("./file0", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./5/binderfs", [pid 5141] <... mkdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5141] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5072] unlink("./5/binderfs") = 0 [ 63.507904][ T5141] loop1: detected capacity change from 0 to 8192 [ 63.538812][ T5141] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 63.552422][ T5141] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5072] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [ 63.582310][ T5141] REISERFS (device loop1): using ordered data mode [pid 5067] <... umount2 resumed>) = 0 [ 63.629219][ T5141] reiserfs: using flush barriers [pid 5070] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./4/file0", [pid 5070] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] getdents64(4, [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5070] close(4 [pid 5067] fstat(4, [pid 5070] <... close resumed>) = 0 [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] rmdir("./4/file0" [pid 5067] getdents64(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5067] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5067] getdents64(4, [pid 5070] <... close resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] rmdir("./4" [pid 5067] close(4 [pid 5142] <... write resumed>) = 4194304 [pid 5070] <... rmdir resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5142] munmap(0x7f619b0de000, 4194304 [pid 5070] mkdir("./5", 0777 [pid 5067] rmdir("./4/file0" [pid 5142] <... munmap resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5142] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... mkdir resumed>) = 0 [ 63.649976][ T5141] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5067] getdents64(3, [pid 5142] <... openat resumed>) = 4 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5142] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... openat resumed>) = 3 [pid 5067] close(3 [pid 5142] <... ioctl resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5067] <... close resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5067] rmdir("./4" [pid 5070] close(3 [pid 5142] close(3 [pid 5070] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5142] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] mkdir("./5", 0777 [pid 5142] mkdir("./file0", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... mkdir resumed>) = 0 [pid 5142] <... mkdir resumed>) = 0 [pid 5069] lstat("./4/file0", [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5142] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5144 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5069] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] close(3 [pid 5069] <... openat resumed>) = 4 [pid 5067] <... close resumed>) = 0 [pid 5069] fstat(4, [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5146 [ 63.714047][ T5142] loop4: detected capacity change from 0 to 8192 [ 63.733163][ T5141] REISERFS (device loop1): checking transaction log (loop1) [pid 5069] getdents64(4, ./strace-static-x86_64: Process 5144 attached [pid 5144] chdir("./5") = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5144] setpgid(0, 0) = 0 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5144] write(3, "1000", 4) = 4 [pid 5144] close(3) = 0 [pid 5144] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5069] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5144] memfd_create("syzkaller", 0 [pid 5069] close(4 [pid 5144] <... memfd_create resumed>) = 3 [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 5146 attached [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] rmdir("./4/file0" [pid 5146] chdir("./5" [pid 5144] <... mmap resumed>) = 0x7f619b0de000 [pid 5069] <... rmdir resumed>) = 0 [pid 5146] <... chdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5146] <... prctl resumed>) = 0 [pid 5069] close(3 [pid 5146] setpgid(0, 0 [pid 5069] <... close resumed>) = 0 [pid 5146] <... setpgid resumed>) = 0 [pid 5069] rmdir("./4" [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... rmdir resumed>) = 0 [pid 5146] <... openat resumed>) = 3 [pid 5069] mkdir("./5", 0777 [pid 5146] write(3, "1000", 4 [pid 5069] <... mkdir resumed>) = 0 [pid 5146] <... write resumed>) = 4 [ 63.775961][ T5142] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5146] close(3 [pid 5072] <... umount2 resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5146] <... close resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5146] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5146] <... symlink resumed>) = 0 [pid 5069] close(3 [pid 5146] memfd_create("syzkaller", 0 [pid 5069] <... close resumed>) = 0 [pid 5146] <... memfd_create resumed>) = 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5072] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5147 ./strace-static-x86_64: Process 5147 attached [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5147] chdir("./5" [pid 5072] lstat("./5/file0", [pid 5147] <... chdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] <... prctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5147] setpgid(0, 0 [pid 5072] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5147] <... setpgid resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] fstat(4, [pid 5147] <... openat resumed>) = 3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5147] write(3, "1000", 4 [pid 5072] getdents64(4, [pid 5147] <... write resumed>) = 4 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5147] close(3 [pid 5072] getdents64(4, [pid 5147] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5147] symlink("/dev/binderfs", "./binderfs" [pid 5072] close(4 [pid 5147] <... symlink resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5147] memfd_create("syzkaller", 0 [pid 5072] rmdir("./5/file0" [pid 5147] <... memfd_create resumed>) = 3 [pid 5072] <... rmdir resumed>) = 0 [ 63.824575][ T5142] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 63.834727][ T5142] REISERFS (device loop4): using ordered data mode [ 63.841447][ T5142] reiserfs: using flush barriers [ 63.854263][ T5142] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] getdents64(3, [pid 5147] <... mmap resumed>) = 0x7f619b0de000 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./5") = 0 [pid 5072] mkdir("./6", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5148 ./strace-static-x86_64: Process 5148 attached [pid 5148] chdir("./6" [pid 5147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5148] <... chdir resumed>) = 0 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5148] setpgid(0, 0) = 0 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5148] write(3, "1000", 4) = 4 [pid 5148] close(3) = 0 [pid 5148] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5148] memfd_create("syzkaller", 0) = 3 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 63.950861][ T5142] REISERFS (device loop4): checking transaction log (loop4) [pid 5144] <... write resumed>) = 4194304 [pid 5144] munmap(0x7f619b0de000, 4194304) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5144] ioctl(4, LOOP_SET_FD, 3 [pid 5147] <... write resumed>) = 4194304 [pid 5144] <... ioctl resumed>) = 0 [pid 5144] close(3) = 0 [pid 5144] mkdir("./file0", 0777) = 0 [pid 5144] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5147] munmap(0x7f619b0de000, 4194304) = 0 [pid 5147] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5147] <... openat resumed>) = 4 [ 64.026905][ T5144] loop3: detected capacity change from 0 to 8192 [pid 5147] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5147] close(3) = 0 [pid 5147] mkdir("./file0", 0777) = 0 [ 64.082226][ T5144] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.098309][ T5147] loop2: detected capacity change from 0 to 8192 [ 64.098801][ T5144] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 64.116943][ T5141] REISERFS (device loop1): Using r5 hash to sort names [ 64.118647][ T5144] REISERFS (device loop3): using ordered data mode [pid 5147] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5148] <... write resumed>) = 4194304 [pid 5146] <... write resumed>) = 4194304 [pid 5141] <... mount resumed>) = 0 [ 64.134254][ T5141] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 64.134724][ T5144] reiserfs: using flush barriers [ 64.150149][ T5147] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.163515][ T5142] REISERFS (device loop4): Using r5 hash to sort names [pid 5148] munmap(0x7f619b0de000, 4194304 [pid 5146] munmap(0x7f619b0de000, 4194304 [pid 5142] <... mount resumed>) = 0 [pid 5141] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5148] <... munmap resumed>) = 0 [pid 5146] <... munmap resumed>) = 0 [pid 5142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5141] <... openat resumed>) = 3 [pid 5148] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5146] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5142] <... openat resumed>) = 3 [pid 5141] chdir("./file0" [pid 5148] <... openat resumed>) = 4 [pid 5146] <... openat resumed>) = 4 [pid 5142] chdir("./file0" [pid 5141] <... chdir resumed>) = 0 [pid 5148] ioctl(4, LOOP_SET_FD, 3 [pid 5146] ioctl(4, LOOP_SET_FD, 3 [pid 5142] <... chdir resumed>) = 0 [ 64.167535][ T5144] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 64.170646][ T5142] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 64.187479][ T5147] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 64.196907][ T5144] REISERFS (device loop3): checking transaction log (loop3) [ 64.208669][ T5147] REISERFS (device loop2): using ordered data mode [ 64.222616][ T5146] loop0: detected capacity change from 0 to 8192 [pid 5141] ioctl(4, LOOP_CLR_FD [pid 5142] ioctl(4, LOOP_CLR_FD [pid 5141] <... ioctl resumed>) = 0 [pid 5142] <... ioctl resumed>) = 0 [pid 5141] close(4 [pid 5142] close(4 [pid 5141] <... close resumed>) = 0 [pid 5142] <... close resumed>) = 0 [pid 5141] creat("./bus", 000 [pid 5142] creat("./bus", 000 [pid 5141] <... creat resumed>) = 4 [pid 5142] <... creat resumed>) = 4 [pid 5141] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5142] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5148] <... ioctl resumed>) = 0 [pid 5148] close(3 [pid 5146] <... ioctl resumed>) = 0 [pid 5148] <... close resumed>) = 0 [pid 5146] close(3 [pid 5148] mkdir("./file0", 0777 [pid 5146] <... close resumed>) = 0 [pid 5148] <... mkdir resumed>) = 0 [pid 5146] mkdir("./file0", 0777 [pid 5148] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5146] <... mkdir resumed>) = 0 [pid 5142] <... write resumed>) = 32 [pid 5141] <... write resumed>) = 32 [pid 5146] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5142] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5141] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5142] <... open resumed>) = 5 [pid 5142] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5141] <... open resumed>) = 5 [pid 5142] <... mmap resumed>) = 0x20000000 [pid 5141] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5142] write(5, 0x200000c0, 34136651 [pid 5141] <... mmap resumed>) = 0x20000000 [ 64.229732][ T5148] loop5: detected capacity change from 0 to 8192 [ 64.235663][ T5147] reiserfs: using flush barriers [ 64.243086][ T5147] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 64.261804][ T5147] REISERFS (device loop2): checking transaction log (loop2) [pid 5141] write(5, 0x200000c0, 34136651 [pid 5142] <... write resumed>) = 3904 [pid 5141] <... write resumed>) = 3904 [pid 5142] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5142] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5142] exit_group(0) = ? [pid 5142] +++ exited with 0 +++ [pid 5141] ioctl(4, FS_IOC_GETVERSION [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5141] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5141] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [ 64.309972][ T5148] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.323971][ T5146] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.337052][ T5148] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 64.347908][ T5146] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5141] exit_group(0) = ? [pid 5141] +++ exited with 0 +++ [pid 5071] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] fstat(3, [pid 5068] <... openat resumed>) = 3 [pid 5068] fstat(3, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] getdents64(3, [pid 5071] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] lstat("./5/binderfs", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./5/binderfs" [pid 5068] lstat("./5/binderfs", [pid 5071] <... unlink resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] unlink("./5/binderfs") = 0 [ 64.357883][ T5148] REISERFS (device loop5): using ordered data mode [ 64.394959][ T5146] REISERFS (device loop0): using ordered data mode [ 64.402905][ T5146] reiserfs: using flush barriers [ 64.408491][ T5147] REISERFS (device loop2): Using r5 hash to sort names [ 64.416582][ T5147] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 64.426500][ T5148] reiserfs: using flush barriers [ 64.433514][ T5144] REISERFS (device loop3): Using r5 hash to sort names [pid 5068] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] <... mount resumed>) = 0 [pid 5144] <... mount resumed>) = 0 [pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5144] chdir("./file0") = 0 [pid 5144] ioctl(4, LOOP_CLR_FD) = 0 [pid 5144] close(4) = 0 [pid 5144] creat("./bus", 000) = 4 [pid 5144] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5147] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5147] chdir("./file0") = 0 [pid 5147] ioctl(4, LOOP_CLR_FD) = 0 [pid 5147] close(4) = 0 [pid 5147] creat("./bus", 000) = 4 [pid 5144] <... write resumed>) = 32 [pid 5147] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5144] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5147] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5144] <... open resumed>) = 5 [pid 5147] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5144] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5147] <... mmap resumed>) = 0x20000000 [pid 5147] write(5, 0x200000c0, 34136651 [pid 5144] <... mmap resumed>) = 0x20000000 [ 64.442151][ T5144] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 64.449843][ T5146] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 64.476321][ T5148] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5144] write(5, 0x200000c0, 34136651 [pid 5147] <... write resumed>) = 3904 [pid 5068] <... umount2 resumed>) = 0 [pid 5147] ioctl(4, FS_IOC_GETVERSION [pid 5068] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5147] write(-1, 0x20000080, 296 [pid 5068] lstat("./5/file0", [pid 5147] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5147] exit_group(0 [pid 5144] <... write resumed>) = 3904 [pid 5068] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] <... exit_group resumed>) = ? [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5144] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5147] +++ exited with 0 +++ [pid 5144] write(-1, 0x20000080, 296 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5068] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5144] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5144] exit_group(0 [pid 5068] <... openat resumed>) = 4 [pid 5144] <... exit_group resumed>) = ? [pid 5068] fstat(4, [pid 5144] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, [pid 5069] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(4, [pid 5069] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5068] close(4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(3, [pid 5068] <... close resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] rmdir("./5/file0" [pid 5070] <... openat resumed>) = 3 [pid 5069] getdents64(3, [pid 5070] fstat(3, [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] <... rmdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5070] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./5/binderfs", [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] unlink("./5/binderfs" [pid 5070] lstat("./5/binderfs", [pid 5068] <... close resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] rmdir("./5" [pid 5070] unlink("./5/binderfs" [pid 5069] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [ 64.521595][ T5146] REISERFS (device loop0): checking transaction log (loop0) [pid 5070] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] mkdir("./6", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5153 ./strace-static-x86_64: Process 5153 attached [pid 5153] chdir("./6") = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] setpgid(0, 0) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] write(3, "1000", 4) = 4 [pid 5153] close(3) = 0 [pid 5153] symlink("/dev/binderfs", "./binderfs") = 0 [ 64.586641][ T5148] REISERFS (device loop5): checking transaction log (loop5) [pid 5153] memfd_create("syzkaller", 0) = 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] lstat("./5/file0", [pid 5069] getdents64(4, [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] rmdir("./5/file0" [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, [pid 5069] <... rmdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 5071] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(4, [pid 5069] close(3 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4 [pid 5069] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] rmdir("./5" [pid 5071] rmdir("./5/file0") = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, [pid 5069] mkdir("./6", 0777 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] rmdir("./5") = 0 [pid 5071] mkdir("./6", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5154 [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5154 attached [pid 5069] close(3 [pid 5154] chdir("./6" [pid 5069] <... close resumed>) = 0 [pid 5154] <... chdir resumed>) = 0 [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5155 [pid 5154] setpgid(0, 0./strace-static-x86_64: Process 5155 attached ) = 0 [pid 5155] chdir("./6" [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5155] <... chdir resumed>) = 0 [pid 5154] <... openat resumed>) = 3 [pid 5070] <... umount2 resumed>) = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5154] write(3, "1000", 4 [pid 5155] <... prctl resumed>) = 0 [pid 5154] <... write resumed>) = 4 [pid 5070] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5155] setpgid(0, 0 [pid 5154] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5155] <... setpgid resumed>) = 0 [pid 5154] <... close resumed>) = 0 [pid 5070] lstat("./5/file0", [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5155] <... openat resumed>) = 3 [pid 5154] <... symlink resumed>) = 0 [pid 5070] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5155] write(3, "1000", 4 [pid 5154] memfd_create("syzkaller", 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5155] <... write resumed>) = 4 [pid 5154] <... memfd_create resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5155] close(3 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5153] <... write resumed>) = 4194304 [pid 5070] <... openat resumed>) = 4 [pid 5155] <... close resumed>) = 0 [pid 5154] <... mmap resumed>) = 0x7f619b0de000 [pid 5153] munmap(0x7f619b0de000, 4194304 [pid 5070] fstat(4, [pid 5155] symlink("/dev/binderfs", "./binderfs" [pid 5153] <... munmap resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5155] <... symlink resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5070] getdents64(4, [pid 5155] memfd_create("syzkaller", 0 [pid 5070] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5153] <... openat resumed>) = 4 [pid 5155] <... memfd_create resumed>) = 3 [pid 5153] ioctl(4, LOOP_SET_FD, 3 [pid 5070] getdents64(4, [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5153] <... ioctl resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5155] <... mmap resumed>) = 0x7f619b0de000 [pid 5070] close(4 [pid 5153] close(3 [pid 5070] <... close resumed>) = 0 [pid 5153] <... close resumed>) = 0 [pid 5070] rmdir("./5/file0" [pid 5153] mkdir("./file0", 0777) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5153] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./5") = 0 [pid 5070] mkdir("./6", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [ 64.818464][ T5146] REISERFS (device loop0): Using r5 hash to sort names [ 64.836865][ T5153] loop1: detected capacity change from 0 to 8192 [ 64.852434][ T5146] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5157 [pid 5146] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5157 attached [pid 5146] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5157] chdir("./6" [pid 5146] <... openat resumed>) = 3 [pid 5157] <... chdir resumed>) = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5146] chdir("./file0" [pid 5157] <... prctl resumed>) = 0 [ 64.879684][ T5153] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5146] <... chdir resumed>) = 0 [pid 5157] setpgid(0, 0 [pid 5155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5146] ioctl(4, LOOP_CLR_FD [pid 5157] <... setpgid resumed>) = 0 [pid 5146] <... ioctl resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] close(4 [pid 5157] <... openat resumed>) = 3 [pid 5146] <... close resumed>) = 0 [pid 5157] write(3, "1000", 4 [pid 5146] creat("./bus", 000 [pid 5157] <... write resumed>) = 4 [pid 5146] <... creat resumed>) = 4 [pid 5157] close(3 [pid 5146] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5157] <... close resumed>) = 0 [pid 5157] symlink("/dev/binderfs", "./binderfs" [pid 5146] <... write resumed>) = 32 [pid 5157] <... symlink resumed>) = 0 [pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 64.934012][ T5153] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 64.943251][ T5153] REISERFS (device loop1): using ordered data mode [ 64.950228][ T5153] reiserfs: using flush barriers [ 64.958646][ T5153] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 64.975468][ T5153] REISERFS (device loop1): checking transaction log (loop1) [pid 5146] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5157] memfd_create("syzkaller", 0 [pid 5155] <... write resumed>) = 4194304 [pid 5146] <... open resumed>) = 5 [pid 5157] <... memfd_create resumed>) = 3 [pid 5146] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5155] munmap(0x7f619b0de000, 4194304 [pid 5146] <... mmap resumed>) = 0x20000000 [pid 5157] <... mmap resumed>) = 0x7f619b0de000 [pid 5146] write(5, 0x200000c0, 34136651 [pid 5155] <... munmap resumed>) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 64.984332][ T5148] REISERFS (device loop5): Using r5 hash to sort names [pid 5155] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5155] close(3) = 0 [pid 5155] mkdir("./file0", 0777) = 0 [pid 5155] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5154] <... write resumed>) = 4194304 [pid 5146] <... write resumed>) = 3904 [pid 5146] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5146] write(-1, 0x20000080, 296 [pid 5154] munmap(0x7f619b0de000, 4194304 [pid 5146] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5146] exit_group(0 [pid 5154] <... munmap resumed>) = 0 [pid 5146] <... exit_group resumed>) = ? [pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5154] openat(AT_FDCWD, "/dev/loop4", O_RDWR [ 65.038087][ T5155] loop2: detected capacity change from 0 to 8192 [ 65.051874][ T5148] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 65.070571][ T5155] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5148] <... mount resumed>) = 0 [pid 5146] +++ exited with 0 +++ [pid 5154] <... openat resumed>) = 4 [pid 5148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5154] ioctl(4, LOOP_SET_FD, 3 [pid 5148] <... openat resumed>) = 3 [pid 5148] chdir("./file0" [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5148] <... chdir resumed>) = 0 [pid 5148] ioctl(4, LOOP_CLR_FD) = 0 [pid 5148] close(4) = 0 [pid 5148] creat("./bus", 000) = 4 [pid 5148] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5154] <... ioctl resumed>) = 0 [pid 5154] close(3) = 0 [pid 5154] mkdir("./file0", 0777) = 0 [pid 5154] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5148] <... write resumed>) = 32 [pid 5148] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5067] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5148] <... mmap resumed>) = 0x20000000 [pid 5148] write(5, 0x200000c0, 34136651 [pid 5067] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 65.090954][ T5155] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 65.096713][ T5154] loop4: detected capacity change from 0 to 8192 [ 65.111287][ T5155] REISERFS (device loop2): using ordered data mode [pid 5067] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5157] <... write resumed>) = 4194304 [pid 5148] <... write resumed>) = 3904 [pid 5148] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [ 65.141655][ T5154] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 65.154915][ T5155] reiserfs: using flush barriers [ 65.160732][ T5148] [ 65.161766][ T5155] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 65.163069][ T5148] ====================================================== [pid 5157] munmap(0x7f619b0de000, 4194304 [pid 5067] unlink("./5/binderfs" [pid 5157] <... munmap resumed>) = 0 [pid 5067] <... unlink resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5157] <... openat resumed>) = 4 [pid 5157] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5157] close(3) = 0 [pid 5157] mkdir("./file0", 0777) = 0 [ 65.163076][ T5148] WARNING: possible circular locking dependency detected [ 65.181052][ T5155] REISERFS (device loop2): checking transaction log (loop2) [ 65.186141][ T5148] 6.1.0-syzkaller-14446-g8395ae05cb5a #0 Not tainted [ 65.186151][ T5148] ------------------------------------------------------ [ 65.186156][ T5148] syz-executor409/5148 is trying to acquire lock: [ 65.186165][ T5148] ffff888017eac090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x77/0xd0 [ 65.195052][ T5157] loop3: detected capacity change from 0 to 8192 [ 65.200462][ T5148] [ 65.200462][ T5148] but task is already holding lock: [ 65.200471][ T5148] ffff88802081e558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x19e/0x5e0 [ 65.243001][ T5153] REISERFS (device loop1): Using r5 hash to sort names [ 65.243204][ T5148] [ 65.243204][ T5148] which lock already depends on the new lock. [ 65.243204][ T5148] [ 65.243210][ T5148] [ 65.243210][ T5148] the existing dependency chain (in reverse order) is: [ 65.255196][ T5154] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 65.259148][ T5148] [pid 5157] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5153] <... mount resumed>) = 0 [pid 5153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5153] chdir("./file0") = 0 [pid 5153] ioctl(4, LOOP_CLR_FD) = 0 [ 65.259148][ T5148] -> #2 (sb_pagefaults){.+.+}-{0:0}: [ 65.259179][ T5148] lock_acquire+0x182/0x3c0 [ 65.290215][ T5153] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 65.295115][ T5148] filemap_page_mkwrite+0x15c/0x7a0 [ 65.295145][ T5148] do_page_mkwrite+0x19e/0x5e0 [ 65.295165][ T5148] wp_page_shared+0x15e/0x380 [ 65.295182][ T5148] handle_mm_fault+0x1b79/0x26b0 [ 65.295199][ T5148] do_user_addr_fault+0x69b/0xcb0 [pid 5153] close(4) = 0 [pid 5153] creat("./bus", 000) = 4 [pid 5153] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5153] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5153] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 65.317820][ T5154] REISERFS (device loop4): using ordered data mode [ 65.320202][ T5148] exc_page_fault+0x7a/0x110 [ 65.320239][ T5148] asm_exc_page_fault+0x22/0x30 [ 65.354694][ T5148] [ 65.354694][ T5148] -> #1 (&mm->mmap_lock){++++}-{3:3}: [ 65.362276][ T5148] lock_acquire+0x182/0x3c0 [ 65.367324][ T5148] __might_fault+0xb2/0x110 [ 65.372376][ T5148] reiserfs_ioctl+0x11c/0x340 [ 65.377686][ T5148] __se_sys_ioctl+0xfb/0x170 [ 65.379772][ T5154] reiserfs: using flush barriers [ 65.382801][ T5148] do_syscall_64+0x3d/0xb0 [ 65.382828][ T5148] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 65.399098][ T5148] [ 65.399098][ T5148] -> #0 (&sbi->lock){+.+.}-{3:3}: [ 65.406328][ T5148] validate_chain+0x1898/0x6ae0 [ 65.407167][ T5155] REISERFS (device loop2): Using r5 hash to sort names [ 65.411701][ T5148] __lock_acquire+0x1292/0x1f60 [ 65.411726][ T5148] lock_acquire+0x182/0x3c0 [ 65.419926][ T5154] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 65.423903][ T5148] __mutex_lock_common+0x1bd/0x26e0 [ 65.423928][ T5148] mutex_lock_nested+0x17/0x20 [ 65.423942][ T5148] reiserfs_write_lock+0x77/0xd0 [ 65.423960][ T5148] reiserfs_dirty_inode+0xdf/0x230 [ 65.430438][ T5154] REISERFS (device loop4): checking transaction log (loop4) [ 65.444993][ T5148] __mark_inode_dirty+0x1e7/0x600 [ 65.445018][ T5148] file_update_time+0x551/0x5d0 [ 65.445033][ T5148] filemap_page_mkwrite+0x248/0x7a0 [ 65.445053][ T5148] do_page_mkwrite+0x19e/0x5e0 [ 65.445071][ T5148] wp_page_shared+0x15e/0x380 [ 65.445087][ T5148] handle_mm_fault+0x1b79/0x26b0 [ 65.445103][ T5148] do_user_addr_fault+0x69b/0xcb0 [ 65.445121][ T5148] exc_page_fault+0x7a/0x110 [ 65.445134][ T5148] asm_exc_page_fault+0x22/0x30 [ 65.445155][ T5148] [ 65.445155][ T5148] other info that might help us debug this: [ 65.445155][ T5148] [ 65.445160][ T5148] Chain exists of: [ 65.445160][ T5148] &sbi->lock --> &mm->mmap_lock --> sb_pagefaults [ 65.445160][ T5148] [ 65.445191][ T5148] Possible unsafe locking scenario: [ 65.445191][ T5148] [ 65.445195][ T5148] CPU0 CPU1 [ 65.445199][ T5148] ---- ---- [ 65.445203][ T5148] lock(sb_pagefaults); [ 65.445214][ T5148] lock(&mm->mmap_lock); [ 65.445226][ T5148] lock(sb_pagefaults); [ 65.445238][ T5148] lock(&sbi->lock); [ 65.445248][ T5148] [ 65.445248][ T5148] *** DEADLOCK *** [ 65.445248][ T5148] [ 65.445252][ T5148] 2 locks held by syz-executor409/5148: [ 65.445263][ T5148] #0: ffff88801d47c758 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x2e2/0xcb0 [ 65.445308][ T5148] #1: ffff88802081e558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x19e/0x5e0 [ 65.445352][ T5148] [ 65.445352][ T5148] stack backtrace: [ 65.445357][ T5148] CPU: 0 PID: 5148 Comm: syz-executor409 Not tainted 6.1.0-syzkaller-14446-g8395ae05cb5a #0 [ 65.445372][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 65.445380][ T5148] Call Trace: [ 65.445385][ T5148] [ 65.445391][ T5148] dump_stack_lvl+0x1b1/0x290 [ 65.445413][ T5148] ? nf_tcp_handle_invalid+0x630/0x630 [ 65.445436][ T5148] ? print_circular_bug+0x13e/0x1c0 [ 65.445457][ T5148] check_noncircular+0x2cc/0x390 [ 65.454513][ T5155] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 65.456416][ T5148] ? add_chain_block+0x850/0x850 [ 65.456445][ T5148] ? lockdep_lock+0x102/0x290 [ 65.568045][ T5154] REISERFS (device loop4): Using r5 hash to sort names [ 65.568242][ T5148] ? _find_first_zero_bit+0xe8/0x110 [ 65.575726][ T5154] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 65.581814][ T5148] validate_chain+0x1898/0x6ae0 [ 65.581849][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.620591][ T5157] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 65.624579][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.624606][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.624625][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.624642][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.624660][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.637905][ T5157] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 65.644741][ T5148] ? __kmem_cache_free+0x71/0x110 [ 65.644767][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.644786][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.644804][ T5148] ? __kmem_cache_free+0x71/0x110 [ 65.649238][ T5157] REISERFS (device loop3): using ordered data mode [ 65.650991][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.656336][ T5157] reiserfs: using flush barriers [ 65.661102][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.667695][ T5157] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 65.671205][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.671232][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.681302][ T5157] REISERFS (device loop3): checking transaction log (loop3) [ 65.685146][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.685171][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.685190][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.685212][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.750920][ T5157] REISERFS (device loop3): Using r5 hash to sort names [ 65.754687][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.754716][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.760228][ T5157] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 65.768726][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.768751][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.768767][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.768785][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.768805][ T5148] ? deref_stack_reg+0x17a/0x210 [ 65.916537][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.921923][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.927287][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.932648][ T5148] ? validate_chain+0x177/0x6ae0 [ 65.937573][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.942940][ T5148] ? rcu_read_lock_sched_held+0x87/0x110 [ 65.948568][ T5148] ? reacquire_held_locks+0x650/0x650 [ 65.953931][ T5148] ? rcu_read_lock_sched_held+0x87/0x110 [ 65.959557][ T5148] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 65.965542][ T5148] ? __mod_timer+0x973/0xcf0 [ 65.970128][ T5148] ? trace_lock_release+0x95/0x220 [ 65.975231][ T5148] ? __mod_timer+0x973/0xcf0 [ 65.979806][ T5148] ? __lock_acquire+0x1f60/0x1f60 [ 65.984819][ T5148] ? mark_lock+0x9a/0x350 [ 65.989137][ T5148] ? mark_lock+0x9a/0x350 [ 65.993460][ T5148] ? __lock_acquire+0x1292/0x1f60 [ 65.998481][ T5148] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.004101][ T5148] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.010071][ T5148] ? cgroup_rstat_updated+0xca/0x350 [ 66.015346][ T5148] ? rcu_lock_acquire+0x30/0x30 [ 66.020187][ T5148] ? mark_lock+0x9a/0x350 [ 66.024506][ T5148] ? rcu_lock_acquire+0x30/0x30 [ 66.029342][ T5148] ? __lock_acquire+0x1f60/0x1f60 [ 66.034351][ T5148] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 66.040331][ T5148] ? stack_trace_save+0x1e0/0x1e0 [ 66.045345][ T5148] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.050985][ T5148] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.056982][ T5148] ? rcu_lock_release+0x5/0x20 [ 66.061741][ T5148] ? read_lock_is_recursive+0x10/0x10 [ 66.067101][ T5148] ? rcu_lock_release+0x5/0x20 [ 66.071862][ T5148] ? __lock_acquire+0x1f60/0x1f60 [ 66.076877][ T5148] ? deref_stack_reg+0x17a/0x210 [ 66.081805][ T5148] ? stack_trace_save+0x1e0/0x1e0 [ 66.086820][ T5148] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.092449][ T5148] ? mark_lock+0x9a/0x350 [ 66.096769][ T5148] __lock_acquire+0x1292/0x1f60 [ 66.101638][ T5148] lock_acquire+0x182/0x3c0 [ 66.106134][ T5148] ? reiserfs_write_lock+0x77/0xd0 [ 66.111238][ T5148] ? read_lock_is_recursive+0x10/0x10 [ 66.116623][ T5148] ? __might_sleep+0xc0/0xc0 [ 66.121208][ T5148] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.126860][ T5148] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.132844][ T5148] __mutex_lock_common+0x1bd/0x26e0 [ 66.138040][ T5148] ? reiserfs_write_lock+0x77/0xd0 [ 66.143142][ T5148] ? mark_lock+0x9a/0x350 [ 66.147467][ T5148] ? reiserfs_write_lock+0x77/0xd0 [ 66.152673][ T5148] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 66.158646][ T5148] ? mutex_lock_io_nested+0x60/0x60 [ 66.163834][ T5148] ? print_irqtrace_events+0x220/0x220 [ 66.169282][ T5148] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 66.175081][ T5148] ? lockdep_hardirqs_on+0x8d/0x130 [ 66.180277][ T5148] mutex_lock_nested+0x17/0x20 [ 66.185040][ T5148] reiserfs_write_lock+0x77/0xd0 [ 66.189977][ T5148] reiserfs_dirty_inode+0xdf/0x230 [ 66.195090][ T5148] ? reiserfs_free_inode+0x20/0x20 [ 66.200197][ T5148] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.205821][ T5148] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.211795][ T5148] ? current_time+0x1ea/0x300 [ 66.216475][ T5148] ? reiserfs_free_inode+0x20/0x20 [ 66.221598][ T5148] __mark_inode_dirty+0x1e7/0x600 [ 66.226619][ T5148] file_update_time+0x551/0x5d0 [ 66.231466][ T5148] ? __file_remove_privs+0x610/0x610 [ 66.236741][ T5148] ? wp_page_shared+0x156/0x380 [ 66.241589][ T5148] filemap_page_mkwrite+0x248/0x7a0 [ 66.246813][ T5148] ? do_page_mkwrite+0x19e/0x5e0 [ 66.251750][ T5148] do_page_mkwrite+0x19e/0x5e0 [ 66.256514][ T5148] wp_page_shared+0x15e/0x380 [ 66.261187][ T5148] handle_mm_fault+0x1b79/0x26b0 [ 66.266154][ T5148] ? numa_migrate_prep+0x250/0x250 [ 66.271278][ T5148] ? __vma_adjust+0x21b0/0x21b0 [ 66.276126][ T5148] ? do_user_addr_fault+0x1cc/0xcb0 [ 66.281318][ T5148] do_user_addr_fault+0x69b/0xcb0 [ 66.286340][ T5148] exc_page_fault+0x7a/0x110 [ 66.290921][ T5148] asm_exc_page_fault+0x22/0x30 [ 66.295772][ T5148] RIP: 0033:0x7f61a34e95a0 [ 66.300191][ T5148] Code: 00 e8 14 26 04 00 48 8b 35 bd 5b 0b 00 31 c9 31 c0 ba 01 76 08 80 bf 10 00 00 00 e8 fa 25 04 00 b8 98 00 00 20 b9 20 00 00 00 04 25 80 00 00 20 08 00 00 00 66 c7 04 25 84 00 00 20 20 01 48 [ 66.319789][ T5148] RSP: 002b:00007ffd03dae660 EFLAGS: 00010286 [ 66.325854][ T5148] RAX: 0000000020000098 RBX: 000000000000f4c9 RCX: 0000000000000020 [ 66.333818][ T5148] RDX: 0000000000000000 RSI: 0000000080087601 RDI: 0000000000000004 [pid 5153] write(5, 0x200000c0, 34136651) = 3904 [pid 5153] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5153] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5153] exit_group(0) = ? [pid 5153] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5068] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./6/binderfs") = 0 [pid 5068] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5155] <... mount resumed>) = 0 [pid 5155] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5155] chdir("./file0") = 0 [pid 5155] ioctl(4, LOOP_CLR_FD) = 0 [pid 5155] close(4) = 0 [pid 5155] creat("./bus", 000) = 4 [pid 5155] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5155] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5155] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5155] write(5, 0x200000c0, 34136651) = 3904 [pid 5155] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5155] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5155] exit_group(0) = ? [pid 5155] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5069] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./6/binderfs") = 0 [pid 5069] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] <... mount resumed>) = 0 [pid 5154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5154] chdir("./file0") = 0 [pid 5154] ioctl(4, LOOP_CLR_FD) = 0 [pid 5154] close(4) = 0 [pid 5154] creat("./bus", 000) = 4 [pid 5154] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5154] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5154] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5154] write(5, 0x200000c0, 34136651) = 3904 [pid 5154] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5154] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5154] exit_group(0) = ? [pid 5154] +++ exited with 0 +++ [pid 5157] <... mount resumed>) = 0 [pid 5157] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5157] chdir("./file0") = 0 [pid 5157] ioctl(4, LOOP_CLR_FD) = 0 [pid 5157] close(4) = 0 [pid 5157] creat("./bus", 000) = 4 [pid 5157] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5157] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5157] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5157] write(5, 0x200000c0, 34136651 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./6/binderfs") = 0 [pid 5071] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5157] <... write resumed>) = 3904 [pid 5157] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5157] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5157] exit_group(0) = ? [pid 5157] +++ exited with 0 +++ [pid 5070] --- 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=17 /* 0.17 s */} --- [pid 5070] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./6/binderfs") = 0 [pid 5070] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5148] exit_group(0) = ? [pid 5148] +++ exited with 0 +++ [pid 5072] --- 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 5072] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./6/binderfs") = 0 [ 66.341782][ T5148] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 66.349741][ T5148] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd03dae68c [ 66.357795][ T5148] R13: 00007ffd03dae6c0 R14: 00007ffd03dae6a0 R15: 0000000000000006 [ 66.365765][ T5148] [pid 5072] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./6/file0") = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5070] rmdir("./6") = 0 [pid 5070] mkdir("./7", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5162 [pid 5069] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5162 attached ) = -1 EINVAL (Invalid argument) [pid 5162] chdir("./7" [pid 5067] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5162] <... chdir resumed>) = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] setpgid(0, 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5162] <... setpgid resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] lstat("./6/file0", [pid 5067] <... openat resumed>) = 4 [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5162] <... openat resumed>) = 3 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5162] write(3, "1000", 4 [pid 5067] close(4 [pid 5162] <... write resumed>) = 4 [pid 5067] <... close resumed>) = 0 [pid 5162] close(3) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5067] rmdir("./5/file0" [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./6/file0", [pid 5072] lstat("./6/file0", [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(4 [pid 5072] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... openat resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5069] rmdir("./6/file0" [pid 5072] fstat(4, [pid 5071] fstat(4, [pid 5162] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(4, [pid 5069] close(3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./6" [pid 5072] getdents64(4, [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, [pid 5069] <... rmdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5072] getdents64(4, [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4 [pid 5069] mkdir("./7", 0777 [pid 5072] close(4 [pid 5071] <... close resumed>) = 0 [pid 5162] <... symlink resumed>) = 0 [pid 5071] rmdir("./6/file0" [pid 5069] <... mkdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./6/file0" [pid 5071] <... rmdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] getdents64(3, [pid 5069] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] <... rmdir resumed>) = 0 [pid 5071] close(3 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... close resumed>) = 0 [pid 5072] getdents64(3, [pid 5071] rmdir("./6" [pid 5069] close(3 [pid 5162] memfd_create("syzkaller", 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 [pid 5071] mkdir("./7", 0777 [pid 5072] close(3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5162] <... memfd_create resumed>) = 3 [pid 5067] rmdir("./5" [pid 5072] <... close resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5163 [pid 5067] <... rmdir resumed>) = 0 [pid 5072] rmdir("./6" [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... openat resumed>) = 3 [pid 5162] <... mmap resumed>) = 0x7f619b0de000 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5163 attached [pid 5072] mkdir("./7", 0777 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... umount2 resumed>) = 0 [pid 5067] mkdir("./6", 0777 [pid 5163] chdir("./7" [pid 5072] <... mkdir resumed>) = 0 [pid 5071] close(3 [pid 5068] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5163] <... chdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... mkdir resumed>) = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... openat resumed>) = 3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] lstat("./6/file0", [pid 5163] <... prctl resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5163] setpgid(0, 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5164 [pid 5068] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5163] <... setpgid resumed>) = 0 [pid 5072] close(3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... openat resumed>) = 3 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... close resumed>) = 0 [pid 5163] <... openat resumed>) = 3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5163] write(3, "1000", 4) = 4 [pid 5068] <... openat resumed>) = 4 [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5163] close(3 [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5165 [pid 5068] fstat(4, [pid 5163] <... close resumed>) = 0 [pid 5067] close(3 [pid 5163] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... close resumed>) = 0 [pid 5068] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./6/file0" [pid 5163] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5164 attached [pid 5068] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5163] memfd_create("syzkaller", 0 [pid 5068] close(3 [pid 5163] <... memfd_create resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] rmdir("./6" [pid 5164] chdir("./7" [pid 5068] <... rmdir resumed>) = 0 [pid 5163] <... mmap resumed>) = 0x7f619b0de000 [pid 5068] mkdir("./7", 0777 [pid 5067] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5166 [pid 5164] <... chdir resumed>) = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5164] setpgid(0, 0) = 0 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5164] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5165 attached [pid 5164] close(3 [pid 5165] chdir("./7" [pid 5164] <... close resumed>) = 0 [pid 5165] <... chdir resumed>) = 0 [pid 5164] symlink("/dev/binderfs", "./binderfs" [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5164] <... symlink resumed>) = 0 [pid 5165] <... prctl resumed>) = 0 [pid 5164] memfd_create("syzkaller", 0 [pid 5165] setpgid(0, 0 [pid 5164] <... memfd_create resumed>) = 3 [pid 5165] <... setpgid resumed>) = 0 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5164] <... mmap resumed>) = 0x7f619b0de000 [pid 5165] <... openat resumed>) = 3 [pid 5165] write(3, "1000", 4) = 4 [pid 5068] <... mkdir resumed>) = 0 [pid 5165] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5165] <... close resumed>) = 0 [pid 5165] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5165] <... symlink resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5165] memfd_create("syzkaller", 0) = 3 [pid 5068] close(3 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 5167 attached [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5167 [pid 5167] chdir("./7") = 0 ./strace-static-x86_64: Process 5166 attached [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5166] chdir("./6") = 0 [pid 5167] setpgid(0, 0 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5167] <... setpgid resumed>) = 0 [pid 5166] <... prctl resumed>) = 0 [pid 5166] setpgid(0, 0) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5167] <... openat resumed>) = 3 [pid 5166] <... openat resumed>) = 3 [pid 5167] write(3, "1000", 4 [pid 5166] write(3, "1000", 4 [pid 5167] <... write resumed>) = 4 [pid 5166] <... write resumed>) = 4 [pid 5167] close(3 [pid 5166] close(3 [pid 5167] <... close resumed>) = 0 [pid 5166] <... close resumed>) = 0 [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5167] symlink("/dev/binderfs", "./binderfs" [pid 5166] symlink("/dev/binderfs", "./binderfs" [pid 5167] <... symlink resumed>) = 0 [pid 5166] <... symlink resumed>) = 0 [pid 5167] memfd_create("syzkaller", 0 [pid 5166] memfd_create("syzkaller", 0 [pid 5167] <... memfd_create resumed>) = 3 [pid 5166] <... memfd_create resumed>) = 3 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5167] <... mmap resumed>) = 0x7f619b0de000 [pid 5166] <... mmap resumed>) = 0x7f619b0de000 [pid 5162] <... write resumed>) = 4194304 [pid 5162] munmap(0x7f619b0de000, 4194304 [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5163] <... write resumed>) = 4194304 [pid 5162] <... munmap resumed>) = 0 [pid 5163] munmap(0x7f619b0de000, 4194304) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5162] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5163] <... openat resumed>) = 4 [pid 5162] <... openat resumed>) = 4 [pid 5163] ioctl(4, LOOP_SET_FD, 3 [pid 5162] ioctl(4, LOOP_SET_FD, 3 [pid 5165] <... write resumed>) = 4194304 [pid 5165] munmap(0x7f619b0de000, 4194304) = 0 [pid 5165] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5165] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5165] close(3) = 0 [pid 5165] mkdir("./file0", 0777) = 0 [pid 5165] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5163] <... ioctl resumed>) = 0 [pid 5163] close(3) = 0 [pid 5163] mkdir("./file0", 0777) = 0 [pid 5163] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5167] <... write resumed>) = 4194304 [pid 5164] <... write resumed>) = 4194304 [pid 5162] <... ioctl resumed>) = 0 [ 66.715472][ T5163] loop2: detected capacity change from 0 to 8192 [ 66.720993][ T5165] loop5: detected capacity change from 0 to 8192 [ 66.722693][ T5162] loop3: detected capacity change from 0 to 8192 [ 66.731629][ T5165] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 66.753267][ T5165] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5164] munmap(0x7f619b0de000, 4194304) = 0 [pid 5167] munmap(0x7f619b0de000, 4194304) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5164] ioctl(4, LOOP_SET_FD, 3 [pid 5167] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5162] close(3 [pid 5167] <... openat resumed>) = 4 [pid 5167] ioctl(4, LOOP_SET_FD, 3 [pid 5162] <... close resumed>) = 0 [pid 5166] <... write resumed>) = 4194304 [pid 5166] munmap(0x7f619b0de000, 4194304 [pid 5162] mkdir("./file0", 0777 [pid 5166] <... munmap resumed>) = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 66.764208][ T5163] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 66.772441][ T5164] loop4: detected capacity change from 0 to 8192 [ 66.777770][ T5163] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 66.787395][ T5167] loop1: detected capacity change from 0 to 8192 [ 66.793176][ T5163] REISERFS (device loop2): using ordered data mode [ 66.806065][ T5163] reiserfs: using flush barriers [pid 5166] ioctl(4, LOOP_SET_FD, 3 [pid 5162] <... mkdir resumed>) = 0 [pid 5162] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5164] <... ioctl resumed>) = 0 [pid 5164] close(3) = 0 [pid 5164] mkdir("./file0", 0777) = 0 [pid 5164] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5167] <... ioctl resumed>) = 0 [pid 5167] close(3) = 0 [pid 5167] mkdir("./file0", 0777) = 0 [pid 5167] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5166] <... ioctl resumed>) = 0 [ 66.807740][ T5166] loop0: detected capacity change from 0 to 8192 [ 66.812649][ T5163] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 66.818788][ T5165] REISERFS (device loop5): using ordered data mode [ 66.833797][ T5163] REISERFS (device loop2): checking transaction log (loop2) [pid 5166] close(3) = 0 [pid 5166] mkdir("./file0", 0777) = 0 [ 66.862415][ T5165] reiserfs: using flush barriers [ 66.866854][ T5162] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 66.884795][ T5164] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 66.891270][ T5166] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 66.900400][ T5165] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 66.911801][ T5166] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 66.927111][ T5165] REISERFS (device loop5): checking transaction log (loop5) [ 66.938438][ T5163] REISERFS (device loop2): Using r5 hash to sort names [ 66.946056][ T5166] REISERFS (device loop0): using ordered data mode [ 66.956693][ T5166] reiserfs: using flush barriers [ 66.962402][ T5164] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 66.965347][ T5166] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 66.987677][ T5164] REISERFS (device loop4): using ordered data mode [ 66.994358][ T5164] reiserfs: using flush barriers [ 66.994560][ T5167] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.000178][ T5164] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 67.017609][ T5162] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 67.030916][ T5163] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 67.037694][ T5162] REISERFS (device loop3): using ordered data mode [ 67.053462][ T5162] reiserfs: using flush barriers [pid 5166] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5163] <... mount resumed>) = 0 [pid 5163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5163] chdir("./file0") = 0 [pid 5163] ioctl(4, LOOP_CLR_FD) = 0 [pid 5163] close(4) = 0 [pid 5163] creat("./bus", 000) = 4 [ 67.058381][ T5167] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 67.058445][ T5167] REISERFS (device loop1): using ordered data mode [ 67.068620][ T5164] REISERFS (device loop4): checking transaction log (loop4) [ 67.076422][ T5166] REISERFS (device loop0): checking transaction log (loop0) [ 67.084500][ T5162] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 67.090437][ T5167] reiserfs: using flush barriers [pid 5163] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5163] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5163] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5163] write(5, 0x200000c0, 34136651 [pid 5165] <... mount resumed>) = 0 [pid 5163] <... write resumed>) = 3904 [pid 5163] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5163] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5163] exit_group(0) = ? [pid 5163] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- [pid 5069] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 67.120636][ T5165] REISERFS (device loop5): Using r5 hash to sort names [ 67.131953][ T5165] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 67.151462][ T5162] REISERFS (device loop3): checking transaction log (loop3) [pid 5069] unlink("./7/binderfs" [pid 5165] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5165] <... openat resumed>) = 3 [pid 5165] chdir("./file0") = 0 [pid 5165] ioctl(4, LOOP_CLR_FD) = 0 [pid 5165] close(4) = 0 [ 67.161472][ T5167] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 67.193267][ T5167] REISERFS (device loop1): checking transaction log (loop1) [pid 5165] creat("./bus", 000) = 4 [pid 5165] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5166] <... mount resumed>) = 0 [pid 5166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5166] chdir("./file0") = 0 [pid 5166] ioctl(4, LOOP_CLR_FD) = 0 [pid 5166] close(4) = 0 [pid 5166] creat("./bus", 000) = 4 [pid 5166] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5164] <... mount resumed>) = 0 [pid 5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5164] chdir("./file0") = 0 [pid 5164] ioctl(4, LOOP_CLR_FD) = 0 [pid 5164] close(4) = 0 [pid 5164] creat("./bus", 000) = 4 [pid 5164] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5166] <... write resumed>) = 32 [pid 5165] <... write resumed>) = 32 [pid 5166] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5166] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5165] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5166] write(5, 0x200000c0, 34136651 [pid 5165] <... open resumed>) = 5 [pid 5165] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5165] write(5, 0x200000c0, 34136651 [pid 5164] <... write resumed>) = 32 [pid 5164] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5164] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5166] <... write resumed>) = 3904 [pid 5166] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5165] <... write resumed>) = 3904 [pid 5166] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5166] exit_group(0 [pid 5165] ioctl(4, FS_IOC_GETVERSION [pid 5166] <... exit_group resumed>) = ? [pid 5166] +++ exited with 0 +++ [pid 5165] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5165] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5067] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] <... mmap resumed>) = 0x20000000 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5165] exit_group(0 [pid 5164] write(5, 0x200000c0, 34136651 [pid 5067] fstat(3, [pid 5165] <... exit_group resumed>) = ? [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5165] +++ exited with 0 +++ [pid 5067] getdents64(3, [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] unlink("./6/binderfs") = 0 [pid 5067] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [ 67.220313][ T5166] REISERFS (device loop0): Using r5 hash to sort names [ 67.224264][ T5164] REISERFS (device loop4): Using r5 hash to sort names [ 67.233831][ T5166] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 67.236254][ T5164] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5164] <... write resumed>) = 3904 [pid 5072] lstat("./7/binderfs", [pid 5067] <... umount2 resumed>) = 0 [pid 5164] ioctl(4, FS_IOC_GETVERSION [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5164] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5072] unlink("./7/binderfs" [pid 5067] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] write(-1, 0x20000080, 296 [pid 5072] <... unlink resumed>) = 0 [pid 5164] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5164] exit_group(0 [pid 5067] lstat("./6/file0", [pid 5164] <... exit_group resumed>) = ? [pid 5067] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5164] +++ exited with 0 +++ [pid 5067] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5067] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, [pid 5071] <... restart_syscall resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] rmdir("./6/file0" [pid 5071] <... openat resumed>) = 3 [pid 5067] <... rmdir resumed>) = 0 [pid 5071] fstat(3, [pid 5067] getdents64(3, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(3, [pid 5067] close(3 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] <... close resumed>) = 0 [pid 5071] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] rmdir("./6" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... rmdir resumed>) = 0 [pid 5071] lstat("./7/binderfs", [pid 5067] mkdir("./7", 0777 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5071] unlink("./7/binderfs" [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./7/file0") = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./7") = 0 [pid 5069] mkdir("./8", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5067] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5174 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5175 ./strace-static-x86_64: Process 5174 attached [pid 5174] chdir("./7") = 0 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5174] setpgid(0, 0) = 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5174] write(3, "1000", 4./strace-static-x86_64: Process 5175 attached ) = 4 [pid 5174] close(3) = 0 [pid 5175] chdir("./8" [pid 5174] symlink("/dev/binderfs", "./binderfs" [pid 5175] <... chdir resumed>) = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5174] <... symlink resumed>) = 0 [pid 5175] setpgid(0, 0) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5174] memfd_create("syzkaller", 0) = 3 [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5175] write(3, "1000", 4) = 4 [pid 5175] close(3) = 0 [pid 5175] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5175] memfd_create("syzkaller", 0) = 3 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 67.362379][ T5167] REISERFS (device loop1): Using r5 hash to sort names [ 67.373802][ T5167] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 67.393603][ T5162] REISERFS (device loop3): Using r5 hash to sort names [ 67.400711][ T5162] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5167] <... mount resumed>) = 0 [pid 5167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5167] chdir("./file0") = 0 [pid 5167] ioctl(4, LOOP_CLR_FD) = 0 [pid 5167] close(4) = 0 [pid 5167] creat("./bus", 000) = 4 [pid 5167] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5167] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5167] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5167] <... mmap resumed>) = 0x20000000 [pid 5072] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5167] write(5, 0x200000c0, 34136651 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./7/file0" [pid 5162] <... mount resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5162] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5167] <... write resumed>) = 3904 [pid 5072] rmdir("./7" [pid 5167] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5167] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5167] exit_group(0) = ? [pid 5167] +++ exited with 0 +++ [pid 5162] <... openat resumed>) = 3 [pid 5072] <... rmdir resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- [pid 5162] chdir("./file0" [pid 5072] mkdir("./8", 0777 [pid 5162] <... chdir resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5068] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] ioctl(4, LOOP_CLR_FD [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5162] <... ioctl resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = 0 [pid 5068] unlink("./7/binderfs" [pid 5162] close(4 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... unlink resumed>) = 0 [pid 5068] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5162] <... close resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5162] creat("./bus", 000 [pid 5072] close(3 [pid 5071] lstat("./7/file0", [pid 5162] <... creat resumed>) = 4 [pid 5072] <... close resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5162] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] <... write resumed>) = 32 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5162] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5176 [pid 5071] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5162] <... open resumed>) = 5 [pid 5071] <... openat resumed>) = 4 [pid 5162] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5071] fstat(4, [pid 5162] <... mmap resumed>) = 0x20000000 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5162] write(5, 0x200000c0, 34136651 [pid 5071] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./7/file0") = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./7") = 0 [pid 5071] mkdir("./8", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5176 attached ) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5176] chdir("./8" [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5176] <... chdir resumed>) = 0 [pid 5071] close(3 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... close resumed>) = 0 [pid 5176] <... prctl resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5176] setpgid(0, 0) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5177 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5176] write(3, "1000", 4) = 4 [pid 5176] close(3) = 0 [pid 5176] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5176] memfd_create("syzkaller", 0) = 3 [pid 5162] <... write resumed>) = 3904 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5162] ioctl(4, FS_IOC_GETVERSION./strace-static-x86_64: Process 5177 attached [pid 5176] <... mmap resumed>) = 0x7f619b0de000 [pid 5162] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5177] chdir("./8" [pid 5162] write(-1, 0x20000080, 296 [pid 5177] <... chdir resumed>) = 0 [pid 5162] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5162] exit_group(0 [pid 5177] <... prctl resumed>) = 0 [pid 5162] <... exit_group resumed>) = ? [pid 5177] setpgid(0, 0 [pid 5162] +++ exited with 0 +++ [pid 5177] <... setpgid resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] --- 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 5177] <... openat resumed>) = 3 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5177] write(3, "1000", 4 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5177] <... write resumed>) = 4 [pid 5177] close(3) = 0 [pid 5070] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5177] <... symlink resumed>) = 0 [pid 5177] memfd_create("syzkaller", 0 [pid 5070] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5177] <... memfd_create resumed>) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... openat resumed>) = 3 [pid 5177] <... mmap resumed>) = 0x7f619b0de000 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5174] <... write resumed>) = 4194304 [pid 5070] unlink("./7/binderfs") = 0 [pid 5070] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = 0 [pid 5174] munmap(0x7f619b0de000, 4194304) = 0 [pid 5174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5174] ioctl(4, LOOP_SET_FD, 3 [pid 5175] <... write resumed>) = 4194304 [pid 5068] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5175] munmap(0x7f619b0de000, 4194304 [pid 5068] lstat("./7/file0", [pid 5175] <... munmap resumed>) = 0 [pid 5175] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5175] <... openat resumed>) = 4 [pid 5068] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5174] <... ioctl resumed>) = 0 [pid 5174] close(3) = 0 [pid 5174] mkdir("./file0", 0777) = 0 [pid 5174] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./7/file0") = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./7") = 0 [pid 5068] mkdir("./8", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5179 [ 67.600919][ T5174] loop0: detected capacity change from 0 to 8192 [ 67.615721][ T5175] loop2: detected capacity change from 0 to 8192 [pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 5179 attached [pid 5179] chdir("./8") = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5175] <... ioctl resumed>) = 0 [pid 5179] <... prctl resumed>) = 0 [pid 5175] close(3 [pid 5179] setpgid(0, 0 [pid 5175] <... close resumed>) = 0 [pid 5179] <... setpgid resumed>) = 0 [pid 5175] mkdir("./file0", 0777 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 [pid 5175] <... mkdir resumed>) = 0 [pid 5179] symlink("/dev/binderfs", "./binderfs" [pid 5175] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5179] <... symlink resumed>) = 0 [pid 5179] memfd_create("syzkaller", 0) = 3 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 67.640769][ T5174] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5177] <... write resumed>) = 4194304 [pid 5177] munmap(0x7f619b0de000, 4194304) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5177] ioctl(4, LOOP_SET_FD, 3 [pid 5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5177] <... ioctl resumed>) = 0 [pid 5177] close(3) = 0 [pid 5177] mkdir("./file0", 0777) = 0 [ 67.674902][ T5175] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.690121][ T5174] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 67.694570][ T5177] loop4: detected capacity change from 0 to 8192 [pid 5177] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./7/file0") = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./7") = 0 [pid 5070] mkdir("./8", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5179] <... write resumed>) = 4194304 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 67.720270][ T5177] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.727413][ T5174] REISERFS (device loop0): using ordered data mode [ 67.757467][ T5175] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5070] close(3 [pid 5179] munmap(0x7f619b0de000, 4194304 [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5182 [pid 5179] <... munmap resumed>) = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5179] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5182 attached [pid 5182] chdir("./8") = 0 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5182] setpgid(0, 0) = 0 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5182] write(3, "1000", 4) = 4 [pid 5182] close(3) = 0 [pid 5182] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5182] memfd_create("syzkaller", 0) = 3 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5179] <... ioctl resumed>) = 0 [pid 5179] close(3) = 0 [pid 5179] mkdir("./file0", 0777) = 0 [pid 5179] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5176] <... write resumed>) = 4194304 [ 67.760001][ T5177] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 67.778840][ T5177] REISERFS (device loop4): using ordered data mode [ 67.785439][ T5177] reiserfs: using flush barriers [ 67.786552][ T5179] loop1: detected capacity change from 0 to 8192 [ 67.791195][ T5177] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 67.804455][ T5174] reiserfs: using flush barriers [ 67.813146][ T5177] REISERFS (device loop4): checking transaction log (loop4) [pid 5176] munmap(0x7f619b0de000, 4194304) = 0 [pid 5176] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5176] ioctl(4, LOOP_SET_FD, 3 [pid 5177] <... mount resumed>) = 0 [ 67.846038][ T5179] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.860001][ T5175] REISERFS (device loop2): using ordered data mode [ 67.873008][ T5177] REISERFS (device loop4): Using r5 hash to sort names [ 67.880172][ T5177] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 67.884188][ T5176] loop5: detected capacity change from 0 to 8192 [pid 5177] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5177] chdir("./file0") = 0 [pid 5177] ioctl(4, LOOP_CLR_FD) = 0 [pid 5177] close(4) = 0 [pid 5177] creat("./bus", 000) = 4 [pid 5177] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5177] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5177] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 67.896685][ T5174] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 67.896924][ T5175] reiserfs: using flush barriers [ 67.913100][ T5174] REISERFS (device loop0): checking transaction log (loop0) [ 67.922947][ T5179] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5177] write(5, 0x200000c0, 34136651 [pid 5182] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5176] <... ioctl resumed>) = 0 [pid 5177] <... write resumed>) = 3904 [pid 5177] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5177] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5177] exit_group(0) = ? [pid 5177] +++ exited with 0 +++ [pid 5071] --- 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 5176] close(3) = 0 [pid 5176] mkdir("./file0", 0777 [pid 5071] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5176] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 67.958532][ T5174] REISERFS (device loop0): Using r5 hash to sort names [ 67.963344][ T5179] REISERFS (device loop1): using ordered data mode [ 67.965773][ T5175] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 67.971975][ T5179] reiserfs: using flush barriers [pid 5071] unlink("./8/binderfs") = 0 [pid 5071] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] <... write resumed>) = 4194304 [pid 5176] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [ 68.002111][ T5179] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.011253][ T5174] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 68.028312][ T5179] REISERFS (device loop1): checking transaction log (loop1) [ 68.040637][ T5176] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5182] munmap(0x7f619b0de000, 4194304) = 0 [pid 5182] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5182] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5182] close(3) = 0 [pid 5182] mkdir("./file0", 0777) = 0 [ 68.043378][ T5175] REISERFS (device loop2): checking transaction log (loop2) [ 68.055077][ T5176] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 68.070738][ T5182] loop3: detected capacity change from 0 to 8192 [ 68.071389][ T5176] REISERFS (device loop5): using ordered data mode [ 68.085218][ T5176] reiserfs: using flush barriers [ 68.092468][ T5176] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5182] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5174] <... mount resumed>) = 0 [pid 5174] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5174] chdir("./file0") = 0 [pid 5174] ioctl(4, LOOP_CLR_FD) = 0 [pid 5174] close(4) = 0 [pid 5174] creat("./bus", 000) = 4 [pid 5174] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5174] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5174] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5174] write(5, 0x200000c0, 34136651) = 3904 [pid 5174] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5174] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5174] exit_group(0) = ? [pid 5174] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5067] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] unlink("./7/binderfs") = 0 [ 68.092682][ T5182] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.120907][ T5176] REISERFS (device loop5): checking transaction log (loop5) [ 68.147680][ T5182] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5067] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./8/file0") = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./8") = 0 [pid 5071] mkdir("./9", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5186 [ 68.166269][ T5182] REISERFS (device loop3): using ordered data mode [ 68.173339][ T5182] reiserfs: using flush barriers [ 68.184129][ T5182] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.207248][ T5179] REISERFS (device loop1): Using r5 hash to sort names ./strace-static-x86_64: Process 5186 attached [pid 5186] chdir("./9") = 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 5186] write(3, "1000", 4) = 4 [pid 5186] close(3) = 0 [pid 5186] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5179] <... mount resumed>) = 0 [pid 5179] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5179] chdir("./file0" [pid 5186] memfd_create("syzkaller", 0 [pid 5179] <... chdir resumed>) = 0 [pid 5186] <... memfd_create resumed>) = 3 [pid 5179] ioctl(4, LOOP_CLR_FD) = 0 [pid 5179] close(4 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5179] <... close resumed>) = 0 [pid 5179] creat("./bus", 000) = 4 [pid 5179] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5179] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5179] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 68.233026][ T5182] REISERFS (device loop3): checking transaction log (loop3) [ 68.256894][ T5179] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5179] write(5, 0x200000c0, 34136651) = 3904 [pid 5179] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5179] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5179] exit_group(0) = ? [pid 5179] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5068] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./8/binderfs") = 0 [pid 5068] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5068] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./8/file0") = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./8") = 0 [pid 5068] mkdir("./9", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", 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=0x555556ae65d0) = 5187 [pid 5067] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 68.332610][ T5182] REISERFS (device loop3): Using r5 hash to sort names [ 68.350989][ T5175] REISERFS (device loop2): Using r5 hash to sort names [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5187 attached [pid 5067] getdents64(4, [pid 5187] chdir("./9") = 0 [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] close(4 [pid 5187] setpgid(0, 0 [pid 5067] <... close resumed>) = 0 [pid 5187] <... setpgid resumed>) = 0 [pid 5067] rmdir("./7/file0" [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... rmdir resumed>) = 0 [pid 5187] <... openat resumed>) = 3 [pid 5187] write(3, "1000", 4 [pid 5067] getdents64(3, [pid 5187] <... write resumed>) = 4 [pid 5187] close(3 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5187] <... close resumed>) = 0 [pid 5067] close(3 [pid 5187] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... close resumed>) = 0 [pid 5187] <... symlink resumed>) = 0 [pid 5067] rmdir("./7" [pid 5187] memfd_create("syzkaller", 0) = 3 [pid 5067] <... rmdir resumed>) = 0 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5067] mkdir("./8", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5188 ./strace-static-x86_64: Process 5188 attached [pid 5188] chdir("./8") = 0 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5188] setpgid(0, 0) = 0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5188] write(3, "1000", 4) = 4 [pid 5188] close(3) = 0 [pid 5188] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5188] memfd_create("syzkaller", 0) = 3 [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 68.373489][ T5182] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5182] <... mount resumed>) = 0 [pid 5182] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5182] chdir("./file0") = 0 [pid 5182] ioctl(4, LOOP_CLR_FD) = 0 [pid 5182] close(4) = 0 [pid 5182] creat("./bus", 000) = 4 [pid 5182] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5182] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5182] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5182] write(5, 0x200000c0, 34136651) = 3904 [pid 5182] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5182] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5182] exit_group(0) = ? [pid 5182] +++ exited with 0 +++ [pid 5070] --- 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=13 /* 0.13 s */} --- [pid 5070] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./8/binderfs") = 0 [pid 5070] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5186] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5175] <... mount resumed>) = 0 [pid 5175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5175] chdir("./file0" [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5175] <... chdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5175] ioctl(4, LOOP_CLR_FD [ 68.416426][ T5176] REISERFS (device loop5): Using r5 hash to sort names [ 68.429313][ T5175] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 68.445869][ T5176] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5175] <... ioctl resumed>) = 0 [pid 5176] <... mount resumed>) = 0 [pid 5186] <... write resumed>) = 4194304 [pid 5176] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5175] close(4 [pid 5070] lstat("./8/file0", [pid 5176] <... openat resumed>) = 3 [pid 5175] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./8/file0") = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./8") = 0 [pid 5070] mkdir("./9", 0777 [pid 5176] chdir("./file0" [pid 5175] creat("./bus", 000 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5176] <... chdir resumed>) = 0 [pid 5175] <... creat resumed>) = 4 [pid 5176] ioctl(4, LOOP_CLR_FD [pid 5175] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5176] <... ioctl resumed>) = 0 [pid 5176] close(4 [pid 5175] <... write resumed>) = 32 [pid 5176] <... close resumed>) = 0 [pid 5175] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5176] creat("./bus", 000 [pid 5175] <... open resumed>) = 5 [pid 5176] <... creat resumed>) = 4 [pid 5175] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5176] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5175] <... mmap resumed>) = 0x20000000 [pid 5175] write(5, 0x200000c0, 34136651 [pid 5176] <... write resumed>) = 32 [pid 5176] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5176] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5186] munmap(0x7f619b0de000, 4194304 [pid 5176] <... mmap resumed>) = 0x20000000 [pid 5176] write(5, 0x200000c0, 34136651 [pid 5186] <... munmap resumed>) = 0 [pid 5175] <... write resumed>) = 3904 [pid 5186] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5175] ioctl(4, FS_IOC_GETVERSION [pid 5186] <... openat resumed>) = 4 [pid 5175] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5186] ioctl(4, LOOP_SET_FD, 3 [pid 5175] write(-1, 0x20000080, 296 [pid 5186] <... ioctl resumed>) = 0 [pid 5175] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5176] <... write resumed>) = 3904 [pid 5176] ioctl(4, FS_IOC_GETVERSION [pid 5175] exit_group(0 [pid 5176] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5175] <... exit_group resumed>) = ? [pid 5175] +++ exited with 0 +++ [pid 5176] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5176] exit_group(0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5176] <... exit_group resumed>) = ? [pid 5069] <... restart_syscall resumed>) = 0 [pid 5176] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5186] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5186] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5186] mkdir("./file0", 0777 [pid 5072] fstat(3, [pid 5070] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5186] <... mkdir resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5186] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5072] getdents64(3, [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] fstat(3, [pid 5187] <... write resumed>) = 4194304 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] close(3 [pid 5072] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5190 [pid 5072] unlink("./8/binderfs") = 0 [pid 5072] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5190 attached [pid 5190] chdir("./9" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5190] <... chdir resumed>) = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5190] <... prctl resumed>) = 0 [pid 5190] setpgid(0, 0 [pid 5069] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5190] <... setpgid resumed>) = 0 [pid 5069] unlink("./8/binderfs" [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] <... unlink resumed>) = 0 [pid 5190] write(3, "1000", 4) = 4 [pid 5069] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] close(3) = 0 [ 68.536362][ T5186] loop4: detected capacity change from 0 to 8192 [pid 5190] symlink("/dev/binderfs", "./binderfs" [pid 5187] munmap(0x7f619b0de000, 4194304 [pid 5190] <... symlink resumed>) = 0 [pid 5187] <... munmap resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5190] memfd_create("syzkaller", 0 [pid 5187] <... openat resumed>) = 4 [pid 5190] <... memfd_create resumed>) = 3 [pid 5187] ioctl(4, LOOP_SET_FD, 3 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5190] <... mmap resumed>) = 0x7f619b0de000 [pid 5072] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] close(3) = 0 [pid 5187] mkdir("./file0", 0777 [pid 5072] lstat("./8/file0", [pid 5187] <... mkdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5187] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5072] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./8/file0") = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./8") = 0 [pid 5072] mkdir("./9", 0777) = 0 [ 68.586278][ T5186] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.607666][ T5187] loop1: detected capacity change from 0 to 8192 [ 68.617030][ T5186] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 68.626549][ T5186] REISERFS (device loop4): using ordered data mode [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5188] <... write resumed>) = 4194304 [pid 5190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5192 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5188] munmap(0x7f619b0de000, 4194304 [pid 5069] <... openat resumed>) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./8/file0" [pid 5188] <... munmap resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5190] <... write resumed>) = 4194304 [pid 5069] close(3 [pid 5190] munmap(0x7f619b0de000, 4194304 [pid 5069] <... close resumed>) = 0 [pid 5188] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] rmdir("./8" [pid 5188] <... openat resumed>) = 4 [ 68.642735][ T5186] reiserfs: using flush barriers [ 68.654241][ T5187] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5188] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5192 attached [pid 5190] <... munmap resumed>) = 0 [pid 5192] chdir("./9") = 0 [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5192] setpgid(0, 0) = 0 [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5192] write(3, "1000", 4) = 4 [pid 5192] close(3) = 0 [pid 5192] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5192] memfd_create("syzkaller", 0) = 3 [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5190] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] mkdir("./9", 0777 [ 68.701306][ T5188] loop0: detected capacity change from 0 to 8192 [ 68.702581][ T5187] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 68.717034][ T5186] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.717546][ T5187] REISERFS (device loop1): using ordered data mode [ 68.740573][ T5187] reiserfs: using flush barriers [pid 5190] <... openat resumed>) = 4 [pid 5069] <... mkdir resumed>) = 0 [pid 5190] ioctl(4, LOOP_SET_FD, 3 [pid 5188] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5192] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5188] close(3 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5193 ./strace-static-x86_64: Process 5193 attached [pid 5193] chdir("./9") = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] setpgid(0, 0) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5193] write(3, "1000", 4) = 4 [pid 5193] close(3) = 0 [pid 5193] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5193] memfd_create("syzkaller", 0) = 3 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5188] <... close resumed>) = 0 [pid 5188] mkdir("./file0", 0777) = 0 [pid 5188] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5190] <... ioctl resumed>) = 0 [pid 5190] close(3) = 0 [pid 5190] mkdir("./file0", 0777) = 0 [ 68.746999][ T5187] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.759558][ T5186] REISERFS (device loop4): checking transaction log (loop4) [ 68.764319][ T5190] loop3: detected capacity change from 0 to 8192 [ 68.791175][ T5187] REISERFS (device loop1): checking transaction log (loop1) [pid 5192] <... write resumed>) = 4194304 [pid 5190] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5192] munmap(0x7f619b0de000, 4194304) = 0 [pid 5192] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 68.824163][ T5188] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.843838][ T5190] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.859763][ T5186] REISERFS (device loop4): Using r5 hash to sort names [pid 5192] ioctl(4, LOOP_SET_FD, 3 [pid 5186] <... mount resumed>) = 0 [pid 5186] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5186] chdir("./file0" [pid 5193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5192] <... ioctl resumed>) = 0 [pid 5186] <... chdir resumed>) = 0 [pid 5192] close(3 [pid 5186] ioctl(4, LOOP_CLR_FD [pid 5192] <... close resumed>) = 0 [pid 5186] <... ioctl resumed>) = 0 [pid 5192] mkdir("./file0", 0777 [pid 5186] close(4 [pid 5192] <... mkdir resumed>) = 0 [pid 5186] <... close resumed>) = 0 [pid 5192] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5186] creat("./bus", 000) = 4 [pid 5186] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5186] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5186] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 68.867098][ T5186] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 68.867553][ T5192] loop5: detected capacity change from 0 to 8192 [ 68.876555][ T5188] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 68.892233][ T5188] REISERFS (device loop0): using ordered data mode [ 68.899147][ T5188] reiserfs: using flush barriers [ 68.905450][ T5190] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5186] write(5, 0x200000c0, 34136651) = 3904 [pid 5186] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5186] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5186] exit_group(0) = ? [pid 5186] +++ exited with 0 +++ [ 68.914656][ T5188] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.931773][ T5188] REISERFS (device loop0): checking transaction log (loop0) [ 68.934499][ T5192] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.941800][ T5190] REISERFS (device loop3): using ordered data mode [ 68.959464][ T5190] reiserfs: using flush barriers [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5071] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./9/binderfs") = 0 [ 68.967161][ T5190] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.983784][ T5192] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 68.993910][ T5192] REISERFS (device loop5): using ordered data mode [ 69.000547][ T5192] reiserfs: using flush barriers [ 69.006617][ T5190] REISERFS (device loop3): checking transaction log (loop3) [pid 5071] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5071] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 69.025475][ T5192] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5071] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5193] <... write resumed>) = 4194304 [pid 5071] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5188] <... mount resumed>) = 0 [pid 5071] rmdir("./9/file0" [pid 5193] munmap(0x7f619b0de000, 4194304 [pid 5188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... rmdir resumed>) = 0 [pid 5193] <... munmap resumed>) = 0 [pid 5188] <... openat resumed>) = 3 [pid 5071] getdents64(3, [pid 5193] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5188] chdir("./file0" [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5193] <... openat resumed>) = 4 [pid 5188] <... chdir resumed>) = 0 [pid 5071] close(3 [pid 5193] ioctl(4, LOOP_SET_FD, 3 [ 69.067861][ T5188] REISERFS (device loop0): Using r5 hash to sort names [ 69.071825][ T5187] REISERFS (device loop1): Using r5 hash to sort names [ 69.075319][ T5192] REISERFS (device loop5): checking transaction log (loop5) [ 69.089930][ T5188] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 69.106458][ T5187] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5188] ioctl(4, LOOP_CLR_FD [pid 5071] <... close resumed>) = 0 [pid 5188] <... ioctl resumed>) = 0 [pid 5071] rmdir("./9" [pid 5188] close(4 [pid 5071] <... rmdir resumed>) = 0 [pid 5188] <... close resumed>) = 0 [pid 5071] mkdir("./10", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5197 ./strace-static-x86_64: Process 5197 attached [pid 5188] creat("./bus", 000) = 4 [pid 5188] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5188] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5197] chdir("./10" [pid 5188] <... open resumed>) = 5 [pid 5188] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5197] <... chdir resumed>) = 0 [pid 5188] <... mmap resumed>) = 0x20000000 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5188] write(5, 0x200000c0, 34136651 [pid 5197] <... prctl resumed>) = 0 [pid 5197] setpgid(0, 0) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5197] write(3, "1000", 4) = 4 [pid 5197] close(3) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5197] memfd_create("syzkaller", 0) = 3 [pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5193] <... ioctl resumed>) = 0 [pid 5193] close(3) = 0 [pid 5193] mkdir("./file0", 0777) = 0 [pid 5193] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5187] <... mount resumed>) = 0 [pid 5188] <... write resumed>) = 3904 [ 69.121678][ T5193] loop2: detected capacity change from 0 to 8192 [ 69.141325][ T5190] REISERFS (device loop3): Using r5 hash to sort names [pid 5187] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5188] ioctl(4, FS_IOC_GETVERSION [pid 5187] <... openat resumed>) = 3 [pid 5187] chdir("./file0" [pid 5188] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5187] <... chdir resumed>) = 0 [pid 5187] ioctl(4, LOOP_CLR_FD) = 0 [pid 5187] close(4 [pid 5188] write(-1, 0x20000080, 296 [pid 5187] <... close resumed>) = 0 [pid 5192] <... mount resumed>) = 0 [pid 5188] <... write resumed>) = -1 EBADF (Bad file descriptor) [ 69.174638][ T5193] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.182162][ T5192] REISERFS (device loop5): Using r5 hash to sort names [ 69.190147][ T5190] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 69.195104][ T5192] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 69.214871][ T5193] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5187] creat("./bus", 000) = 4 [pid 5187] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5192] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5188] exit_group(0 [pid 5192] <... openat resumed>) = 3 [pid 5188] <... exit_group resumed>) = ? [pid 5188] +++ exited with 0 +++ [pid 5192] chdir("./file0") = 0 [pid 5187] <... write resumed>) = 32 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5192] ioctl(4, LOOP_CLR_FD) = 0 [pid 5187] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5187] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5187] write(5, 0x200000c0, 34136651 [pid 5067] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5192] close(4 [pid 5067] <... openat resumed>) = 3 [pid 5192] <... close resumed>) = 0 [pid 5067] fstat(3, [pid 5192] creat("./bus", 000) = 4 [pid 5192] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5187] <... write resumed>) = 3904 [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5192] <... write resumed>) = 32 [pid 5067] getdents64(3, [pid 5192] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5192] <... open resumed>) = 5 [pid 5067] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] <... mmap resumed>) = 0x20000000 [pid 5067] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5192] write(5, 0x200000c0, 34136651 [pid 5067] unlink("./8/binderfs" [pid 5187] ioctl(4, FS_IOC_GETVERSION [pid 5067] <... unlink resumed>) = 0 [pid 5187] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5067] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5187] exit_group(0) = ? [pid 5187] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5068] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, [pid 5190] <... mount resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5192] <... write resumed>) = 3904 [pid 5068] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] ioctl(4, FS_IOC_GETVERSION [pid 5190] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 69.224338][ T5193] REISERFS (device loop2): using ordered data mode [ 69.231091][ T5193] reiserfs: using flush barriers [ 69.238555][ T5193] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 69.255069][ T5193] REISERFS (device loop2): checking transaction log (loop2) [pid 5197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5192] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5190] <... openat resumed>) = 3 [pid 5068] lstat("./9/binderfs", [pid 5192] write(-1, 0x20000080, 296 [pid 5190] chdir("./file0" [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5192] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5190] <... chdir resumed>) = 0 [pid 5068] unlink("./9/binderfs" [pid 5192] exit_group(0 [pid 5190] ioctl(4, LOOP_CLR_FD [pid 5068] <... unlink resumed>) = 0 [pid 5193] <... mount resumed>) = 0 [pid 5192] <... exit_group resumed>) = ? [pid 5190] <... ioctl resumed>) = 0 [pid 5068] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5193] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5192] +++ exited with 0 +++ [pid 5190] close(4 [pid 5197] <... write resumed>) = 4194304 [pid 5193] <... openat resumed>) = 3 [pid 5190] <... close resumed>) = 0 [pid 5190] creat("./bus", 000 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5197] munmap(0x7f619b0de000, 4194304 [pid 5193] chdir("./file0" [pid 5190] <... creat resumed>) = 4 [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5197] <... munmap resumed>) = 0 [pid 5193] <... chdir resumed>) = 0 [pid 5190] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5072] <... restart_syscall resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5193] ioctl(4, LOOP_CLR_FD [pid 5197] <... openat resumed>) = 4 [pid 5193] <... ioctl resumed>) = 0 [pid 5197] ioctl(4, LOOP_SET_FD, 3 [pid 5193] close(4 [pid 5072] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 69.300792][ T5193] REISERFS (device loop2): Using r5 hash to sort names [ 69.308087][ T5193] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./9/binderfs") = 0 [pid 5072] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5193] <... close resumed>) = 0 [pid 5193] creat("./bus", 000 [pid 5190] <... write resumed>) = 32 [pid 5197] <... ioctl resumed>) = 0 [pid 5193] <... creat resumed>) = 4 [pid 5190] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5197] close(3 [pid 5193] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5197] <... close resumed>) = 0 [pid 5193] <... write resumed>) = 32 [pid 5190] <... open resumed>) = 5 [pid 5197] mkdir("./file0", 0777 [pid 5193] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5190] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5197] <... mkdir resumed>) = 0 [pid 5193] <... open resumed>) = 5 [pid 5193] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5190] <... mmap resumed>) = 0x20000000 [pid 5197] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5193] <... mmap resumed>) = 0x20000000 [pid 5190] write(5, 0x200000c0, 34136651 [pid 5193] write(5, 0x200000c0, 34136651 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 69.345434][ T5197] loop4: detected capacity change from 0 to 8192 [pid 5072] getdents64(4, [pid 5190] <... write resumed>) = 3904 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5193] <... write resumed>) = 3904 [pid 5190] ioctl(4, FS_IOC_GETVERSION [pid 5072] getdents64(4, [pid 5067] <... umount2 resumed>) = 0 [pid 5193] ioctl(4, FS_IOC_GETVERSION [pid 5190] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5072] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5193] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5190] write(-1, 0x20000080, 296 [pid 5072] close(4 [pid 5193] write(-1, 0x20000080, 296 [pid 5190] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] <... close resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5193] exit_group(0 [pid 5190] exit_group(0 [pid 5072] rmdir("./9/file0" [pid 5067] lstat("./8/file0", [pid 5193] <... exit_group resumed>) = ? [pid 5190] <... exit_group resumed>) = ? [pid 5072] <... rmdir resumed>) = 0 [pid 5067] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5190] +++ exited with 0 +++ [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5193] +++ exited with 0 +++ [pid 5072] <... close resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] rmdir("./9" [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5067] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... rmdir resumed>) = 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5072] mkdir("./10", 0777 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5072] <... mkdir resumed>) = 0 [pid 5067] fstat(4, [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] getdents64(4, [pid 5070] fstat(3, [pid 5069] <... openat resumed>) = 3 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(3, [pid 5067] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] getdents64(3, [pid 5070] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./9/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] lstat("./9/binderfs", [pid 5070] unlink("./9/binderfs" [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5069] unlink("./9/binderfs" [pid 5067] getdents64(4, [pid 5070] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... unlink resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] close(4) = 0 [ 69.383958][ T5197] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5067] rmdir("./8/file0") = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./8") = 0 [pid 5067] mkdir("./9", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5200 ./strace-static-x86_64: Process 5200 attached [pid 5200] chdir("./9" [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5201 [pid 5200] <... chdir resumed>) = 0 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5200] setpgid(0, 0) = 0 [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5200] write(3, "1000", 4) = 4 [pid 5200] close(3) = 0 [pid 5200] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5200] memfd_create("syzkaller", 0) = 3 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 ./strace-static-x86_64: Process 5201 attached [pid 5201] chdir("./10") = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5201] setpgid(0, 0) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5201] write(3, "1000", 4) = 4 [pid 5201] close(3) = 0 [pid 5201] symlink("/dev/binderfs", "./binderfs") = 0 [ 69.416293][ T5197] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 69.426803][ T5197] REISERFS (device loop4): using ordered data mode [ 69.434981][ T5197] reiserfs: using flush barriers [ 69.450252][ T5197] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5201] memfd_create("syzkaller", 0) = 3 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./9/file0") = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./9") = 0 [pid 5068] mkdir("./10", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5202 ./strace-static-x86_64: Process 5202 attached [pid 5202] chdir("./10") = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5202] setpgid(0, 0) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5202] write(3, "1000", 4) = 4 [pid 5202] close(3) = 0 [pid 5202] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5070] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5202] memfd_create("syzkaller", 0) = 3 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5202] <... mmap resumed>) = 0x7f619b0de000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./9/file0") = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./9" [pid 5070] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./10", 0777 [pid 5070] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5070] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 69.566299][ T5197] REISERFS (device loop4): checking transaction log (loop4) [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... openat resumed>) = 4 [pid 5069] close(3 [pid 5070] fstat(4, [pid 5069] <... close resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./9/file0") = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./9") = 0 [pid 5070] mkdir("./10", 0777 [pid 5200] <... write resumed>) = 4194304 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5203 ./strace-static-x86_64: Process 5203 attached [pid 5070] <... openat resumed>) = 3 [pid 5203] chdir("./10" [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5203] <... chdir resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] close(3 [pid 5203] <... prctl resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5204 [pid 5203] setpgid(0, 0) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5203] write(3, "1000", 4) = 4 [pid 5200] munmap(0x7f619b0de000, 4194304./strace-static-x86_64: Process 5204 attached [pid 5203] close(3 [pid 5204] chdir("./10" [pid 5203] <... close resumed>) = 0 [pid 5204] <... chdir resumed>) = 0 [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5203] symlink("/dev/binderfs", "./binderfs" [pid 5204] <... prctl resumed>) = 0 [pid 5200] <... munmap resumed>) = 0 [pid 5204] setpgid(0, 0 [pid 5203] <... symlink resumed>) = 0 [pid 5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5204] <... setpgid resumed>) = 0 [pid 5203] memfd_create("syzkaller", 0 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5203] <... memfd_create resumed>) = 3 [pid 5200] <... openat resumed>) = 4 [pid 5204] <... openat resumed>) = 3 [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5200] ioctl(4, LOOP_SET_FD, 3 [pid 5204] write(3, "1000", 4 [pid 5203] <... mmap resumed>) = 0x7f619b0de000 [pid 5204] <... write resumed>) = 4 [pid 5204] close(3) = 0 [pid 5204] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5202] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5204] memfd_create("syzkaller", 0) = 3 [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5200] <... ioctl resumed>) = 0 [pid 5200] close(3) = 0 [pid 5200] mkdir("./file0", 0777) = 0 [ 69.664650][ T5200] loop0: detected capacity change from 0 to 8192 [pid 5200] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5201] <... write resumed>) = 4194304 [pid 5201] munmap(0x7f619b0de000, 4194304) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5201] ioctl(4, LOOP_SET_FD, 3 [pid 5203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5197] <... mount resumed>) = 0 [ 69.703814][ T5200] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.733054][ T5197] REISERFS (device loop4): Using r5 hash to sort names [ 69.735215][ T5201] loop5: detected capacity change from 0 to 8192 [ 69.746880][ T5197] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5197] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5197] <... openat resumed>) = 3 [pid 5197] chdir("./file0") = 0 [pid 5197] ioctl(4, LOOP_CLR_FD) = 0 [pid 5197] close(4) = 0 [pid 5197] creat("./bus", 000) = 4 [pid 5197] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5197] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5197] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5201] <... ioctl resumed>) = 0 [pid 5197] write(5, 0x200000c0, 34136651 [pid 5201] close(3) = 0 [pid 5201] mkdir("./file0", 0777) = 0 [pid 5201] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5202] <... write resumed>) = 4194304 [pid 5202] munmap(0x7f619b0de000, 4194304) = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5197] <... write resumed>) = 3904 [pid 5197] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5202] ioctl(4, LOOP_SET_FD, 3 [pid 5197] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [ 69.756282][ T5200] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 69.765719][ T5200] REISERFS (device loop0): using ordered data mode [ 69.772431][ T5200] reiserfs: using flush barriers [ 69.795792][ T5200] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5202] <... ioctl resumed>) = 0 [pid 5197] exit_group(0) = ? [pid 5197] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5204] <... write resumed>) = 4194304 [pid 5203] <... write resumed>) = 4194304 [pid 5202] close(3 [pid 5204] munmap(0x7f619b0de000, 4194304 [pid 5202] <... close resumed>) = 0 [pid 5204] <... munmap resumed>) = 0 [pid 5202] mkdir("./file0", 0777 [pid 5204] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5203] munmap(0x7f619b0de000, 4194304 [pid 5202] <... mkdir resumed>) = 0 [pid 5204] <... openat resumed>) = 4 [pid 5203] <... munmap resumed>) = 0 [pid 5202] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5071] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5204] ioctl(4, LOOP_SET_FD, 3 [pid 5203] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5203] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5203] ioctl(4, LOOP_SET_FD, 3 [ 69.816433][ T5202] loop1: detected capacity change from 0 to 8192 [ 69.826916][ T5200] REISERFS (device loop0): checking transaction log (loop0) [ 69.826950][ T5201] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.850939][ T5204] loop3: detected capacity change from 0 to 8192 [ 69.860138][ T5203] loop2: detected capacity change from 0 to 8192 [pid 5071] <... openat resumed>) = 3 [pid 5204] <... ioctl resumed>) = 0 [pid 5071] fstat(3, [pid 5204] close(3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5204] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5204] mkdir("./file0", 0777 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5204] <... mkdir resumed>) = 0 [pid 5071] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5204] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./10/binderfs") = 0 [pid 5071] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5203] <... ioctl resumed>) = 0 [pid 5203] close(3) = 0 [pid 5203] mkdir("./file0", 0777) = 0 [ 69.866903][ T5202] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.886640][ T5201] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 69.891363][ T5202] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 69.900800][ T5200] REISERFS (device loop0): Using r5 hash to sort names [pid 5203] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5200] <... mount resumed>) = 0 [ 69.905795][ T5202] REISERFS (device loop1): using ordered data mode [ 69.912298][ T5200] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 69.919391][ T5204] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.933923][ T5201] REISERFS (device loop5): using ordered data mode [ 69.941052][ T5202] reiserfs: using flush barriers [ 69.947429][ T5204] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5200] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5200] chdir("./file0") = 0 [pid 5200] ioctl(4, LOOP_CLR_FD) = 0 [ 69.954027][ T5203] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.974995][ T5202] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 69.983783][ T5204] REISERFS (device loop3): using ordered data mode [ 69.997594][ T5204] reiserfs: using flush barriers [ 70.003333][ T5201] reiserfs: using flush barriers [pid 5200] close(4) = 0 [pid 5200] creat("./bus", 000) = 4 [pid 5200] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5200] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5200] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 70.009445][ T5203] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 70.018990][ T5203] REISERFS (device loop2): using ordered data mode [ 70.025803][ T5203] reiserfs: using flush barriers [ 70.026133][ T5201] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.031944][ T5202] REISERFS (device loop1): checking transaction log (loop1) [pid 5200] write(5, 0x200000c0, 34136651) = 3904 [pid 5200] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5200] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5200] exit_group(0) = ? [pid 5200] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5067] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] unlink("./9/binderfs") = 0 [pid 5067] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./10/file0") = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./10") = 0 [pid 5071] mkdir("./11", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 70.054215][ T5203] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.070363][ T5204] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.093701][ T5204] REISERFS (device loop3): checking transaction log (loop3) [ 70.101917][ T5203] REISERFS (device loop2): checking transaction log (loop2) [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5210 ./strace-static-x86_64: Process 5210 attached [pid 5210] chdir("./11") = 0 [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5210] setpgid(0, 0) = 0 [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5210] write(3, "1000", 4) = 4 [pid 5210] close(3) = 0 [pid 5210] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5210] memfd_create("syzkaller", 0) = 3 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 70.133008][ T5201] REISERFS (device loop5): checking transaction log (loop5) [pid 5067] <... umount2 resumed>) = 0 [pid 5067] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5067] rmdir("./9/file0") = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./9") = 0 [pid 5067] mkdir("./10", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [pid 5210] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5211 [ 70.236422][ T5202] REISERFS (device loop1): Using r5 hash to sort names ./strace-static-x86_64: Process 5211 attached [pid 5211] chdir("./10") = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5211] setpgid(0, 0) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5211] write(3, "1000", 4) = 4 [pid 5211] close(3) = 0 [pid 5211] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5211] memfd_create("syzkaller", 0) = 3 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5202] <... mount resumed>) = 0 [ 70.277121][ T5202] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 70.299656][ T5203] REISERFS (device loop2): Using r5 hash to sort names [ 70.309535][ T5204] REISERFS (device loop3): Using r5 hash to sort names [ 70.317448][ T5203] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5202] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5203] <... mount resumed>) = 0 [pid 5202] chdir("./file0" [pid 5204] <... mount resumed>) = 0 [pid 5203] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5202] <... chdir resumed>) = 0 [pid 5204] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5203] <... openat resumed>) = 3 [pid 5202] ioctl(4, LOOP_CLR_FD [pid 5204] <... openat resumed>) = 3 [pid 5203] chdir("./file0" [pid 5202] <... ioctl resumed>) = 0 [pid 5201] <... mount resumed>) = 0 [pid 5204] chdir("./file0" [pid 5203] <... chdir resumed>) = 0 [pid 5202] close(4 [pid 5210] <... write resumed>) = 4194304 [pid 5204] <... chdir resumed>) = 0 [pid 5203] ioctl(4, LOOP_CLR_FD [pid 5201] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5210] munmap(0x7f619b0de000, 4194304 [pid 5204] ioctl(4, LOOP_CLR_FD [pid 5203] <... ioctl resumed>) = 0 [pid 5202] <... close resumed>) = 0 [pid 5201] <... openat resumed>) = 3 [pid 5210] <... munmap resumed>) = 0 [pid 5204] <... ioctl resumed>) = 0 [pid 5203] close(4 [pid 5202] creat("./bus", 000 [pid 5201] chdir("./file0" [pid 5210] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5204] close(4 [pid 5203] <... close resumed>) = 0 [pid 5202] <... creat resumed>) = 4 [pid 5201] <... chdir resumed>) = 0 [pid 5210] <... openat resumed>) = 4 [pid 5204] <... close resumed>) = 0 [pid 5203] creat("./bus", 000 [pid 5202] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5201] ioctl(4, LOOP_CLR_FD [pid 5210] ioctl(4, LOOP_SET_FD, 3 [pid 5204] creat("./bus", 000 [pid 5203] <... creat resumed>) = 4 [pid 5201] <... ioctl resumed>) = 0 [ 70.327500][ T5201] REISERFS (device loop5): Using r5 hash to sort names [ 70.327577][ T5204] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 70.345062][ T5201] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5210] <... ioctl resumed>) = 0 [pid 5204] <... creat resumed>) = 4 [pid 5203] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5202] <... write resumed>) = 32 [pid 5201] close(4 [pid 5204] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5202] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5201] <... close resumed>) = 0 [pid 5201] creat("./bus", 000 [pid 5202] <... open resumed>) = 5 [pid 5203] <... write resumed>) = 32 [pid 5201] <... creat resumed>) = 4 [pid 5203] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5202] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5201] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5204] <... write resumed>) = 32 [pid 5202] <... mmap resumed>) = 0x20000000 [pid 5201] <... write resumed>) = 32 [pid 5203] <... open resumed>) = 5 [pid 5204] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5203] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5202] write(5, 0x200000c0, 34136651 [pid 5201] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5204] <... open resumed>) = 5 [pid 5201] <... open resumed>) = 5 [pid 5203] <... mmap resumed>) = 0x20000000 [pid 5201] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5204] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5203] write(5, 0x200000c0, 34136651 [pid 5210] close(3 [pid 5201] write(5, 0x200000c0, 34136651 [pid 5204] <... mmap resumed>) = 0x20000000 [pid 5210] <... close resumed>) = 0 [pid 5204] write(5, 0x200000c0, 34136651 [pid 5211] <... write resumed>) = 4194304 [pid 5210] mkdir("./file0", 0777) = 0 [pid 5211] munmap(0x7f619b0de000, 4194304 [pid 5210] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5211] <... munmap resumed>) = 0 [pid 5201] <... write resumed>) = 3904 [pid 5204] <... write resumed>) = 3904 [pid 5203] <... write resumed>) = 3904 [pid 5202] <... write resumed>) = 3904 [pid 5201] ioctl(4, FS_IOC_GETVERSION [pid 5211] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5204] ioctl(4, FS_IOC_GETVERSION [pid 5203] ioctl(4, FS_IOC_GETVERSION [pid 5202] ioctl(4, FS_IOC_GETVERSION [pid 5201] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5211] <... openat resumed>) = 4 [pid 5204] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5203] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5202] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [ 70.385323][ T5210] loop4: detected capacity change from 0 to 8192 [ 70.411503][ T5210] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5201] write(-1, 0x20000080, 296 [pid 5211] ioctl(4, LOOP_SET_FD, 3 [pid 5204] write(-1, 0x20000080, 296 [pid 5203] write(-1, 0x20000080, 296 [pid 5202] write(-1, 0x20000080, 296 [pid 5201] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5211] <... ioctl resumed>) = 0 [pid 5204] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5203] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5202] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5201] exit_group(0 [pid 5204] exit_group(0 [pid 5203] exit_group(0 [pid 5202] exit_group(0 [pid 5201] <... exit_group resumed>) = ? [pid 5204] <... exit_group resumed>) = ? [pid 5203] <... exit_group resumed>) = ? [pid 5202] <... exit_group resumed>) = ? [pid 5201] +++ exited with 0 +++ [pid 5204] +++ exited with 0 +++ [pid 5203] +++ exited with 0 +++ [pid 5202] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5211] close(3) = 0 [pid 5211] mkdir("./file0", 0777 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5072] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5072] fstat(3, [pid 5070] fstat(3, [pid 5069] fstat(3, [pid 5068] fstat(3, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5211] <... mkdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5070] getdents64(3, [pid 5069] getdents64(3, [pid 5068] getdents64(3, [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./10/binderfs", [pid 5070] lstat("./10/binderfs", [pid 5069] lstat("./10/binderfs", [pid 5068] lstat("./10/binderfs", [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./10/binderfs" [pid 5070] unlink("./10/binderfs" [pid 5069] unlink("./10/binderfs" [pid 5068] unlink("./10/binderfs" [pid 5072] <... unlink resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5072] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 70.439346][ T5210] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 70.448830][ T5211] loop0: detected capacity change from 0 to 8192 [ 70.450361][ T5210] REISERFS (device loop4): using ordered data mode [ 70.462199][ T5210] reiserfs: using flush barriers [ 70.468920][ T5210] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.481482][ T5211] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 70.485593][ T5210] REISERFS (device loop4): checking transaction log (loop4) [ 70.508303][ T5211] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 70.517590][ T5211] REISERFS (device loop0): using ordered data mode [ 70.524160][ T5211] reiserfs: using flush barriers [ 70.546854][ T5211] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.583690][ T5210] REISERFS (device loop4): Using r5 hash to sort names [pid 5211] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5070] <... umount2 resumed>) = 0 [ 70.591081][ T5210] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] <... umount2 resumed>) = 0 [pid 5070] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] <... mount resumed>) = 0 [pid 5072] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5210] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./10/file0", [pid 5210] <... openat resumed>) = 3 [pid 5072] lstat("./10/file0", [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5210] chdir("./file0" [pid 5070] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] <... chdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5210] ioctl(4, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] <... ioctl resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5210] close(4 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5210] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 4 [pid 5210] creat("./bus", 000 [pid 5072] <... openat resumed>) = 4 [pid 5070] fstat(4, [pid 5210] <... creat resumed>) = 4 [pid 5072] fstat(4, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5210] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5070] getdents64(4, [pid 5210] <... write resumed>) = 32 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5210] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5072] getdents64(4, [pid 5070] getdents64(4, [pid 5210] <... open resumed>) = 5 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5210] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5072] getdents64(4, [pid 5070] close(4 [pid 5210] <... mmap resumed>) = 0x20000000 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5210] write(5, 0x200000c0, 34136651 [pid 5072] close(4 [pid 5070] rmdir("./10/file0") = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] getdents64(3, [pid 5068] <... umount2 resumed>) = 0 [pid 5072] rmdir("./10/file0" [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5070] close(3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] lstat("./10/file0", [pid 5072] close(3 [pid 5070] rmdir("./10" [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] rmdir("./10" [pid 5070] mkdir("./11", 0777 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./11", 0777 [pid 5070] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5068] <... openat resumed>) = 4 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] <... openat resumed>) = 3 [pid 5068] fstat(4, [pid 5072] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5210] <... write resumed>) = 3904 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] getdents64(4, [pid 5210] ioctl(4, FS_IOC_GETVERSION [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5210] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5072] close(3 [pid 5070] <... close resumed>) = 0 [pid 5068] getdents64(4, [pid 5210] write(-1, 0x20000080, 296 [pid 5072] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5210] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] close(4 [pid 5210] exit_group(0) = ? [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5214 [pid 5068] <... close resumed>) = 0 ./strace-static-x86_64: Process 5214 attached [pid 5210] +++ exited with 0 +++ [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5215 [pid 5068] rmdir("./10/file0" [pid 5214] chdir("./11") = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5068] <... rmdir resumed>) = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5068] getdents64(3, [pid 5214] <... prctl resumed>) = 0 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [ 70.626261][ T5211] REISERFS (device loop0): checking transaction log (loop0) [pid 5214] setpgid(0, 0 [pid 5068] close(3./strace-static-x86_64: Process 5215 attached [pid 5214] <... setpgid resumed>) = 0 [pid 5071] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5215] chdir("./11" [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] rmdir("./10" [pid 5215] <... chdir resumed>) = 0 [pid 5214] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... rmdir resumed>) = 0 [pid 5214] write(3, "1000", 4 [pid 5071] <... openat resumed>) = 3 [pid 5068] mkdir("./11", 0777 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5214] <... write resumed>) = 4 [pid 5071] fstat(3, [pid 5069] <... umount2 resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5215] <... prctl resumed>) = 0 [pid 5214] close(3 [pid 5071] getdents64(3, [pid 5069] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... mkdir resumed>) = 0 [pid 5215] setpgid(0, 0 [pid 5214] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5215] <... setpgid resumed>) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs" [pid 5071] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5214] <... symlink resumed>) = 0 [pid 5069] lstat("./10/file0", [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5215] <... openat resumed>) = 3 [pid 5214] memfd_create("syzkaller", 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5215] write(3, "1000", 4 [pid 5214] <... memfd_create resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] close(3 [pid 5215] <... write resumed>) = 4 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5211] <... mount resumed>) = 0 [pid 5071] lstat("./11/binderfs", [pid 5069] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5215] close(3 [pid 5214] <... mmap resumed>) = 0x7f619b0de000 [pid 5211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5215] <... close resumed>) = 0 [pid 5211] <... openat resumed>) = 3 [pid 5071] unlink("./11/binderfs" [pid 5069] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5215] symlink("/dev/binderfs", "./binderfs" [pid 5211] chdir("./file0" [pid 5071] <... unlink resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5215] <... symlink resumed>) = 0 [pid 5211] <... chdir resumed>) = 0 [pid 5071] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(4, [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5216 [pid 5215] memfd_create("syzkaller", 0 [pid 5211] ioctl(4, LOOP_CLR_FD [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5216 attached [pid 5215] <... memfd_create resumed>) = 3 [pid 5211] <... ioctl resumed>) = 0 [pid 5069] getdents64(4, [pid 5216] chdir("./11" [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5211] close(4 [pid 5069] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5215] <... mmap resumed>) = 0x7f619b0de000 [pid 5211] <... close resumed>) = 0 [pid 5069] getdents64(4, [pid 5211] creat("./bus", 000 [pid 5069] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5211] <... creat resumed>) = 4 [pid 5069] close(4 [pid 5211] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5069] <... close resumed>) = 0 [pid 5211] <... write resumed>) = 32 [pid 5069] rmdir("./10/file0" [pid 5211] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5069] <... rmdir resumed>) = 0 [pid 5211] <... open resumed>) = 5 [pid 5069] getdents64(3, [pid 5211] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5216] <... chdir resumed>) = 0 [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5211] <... mmap resumed>) = 0x20000000 [pid 5069] close(3 [pid 5216] <... prctl resumed>) = 0 [pid 5211] write(5, 0x200000c0, 34136651 [pid 5069] <... close resumed>) = 0 [pid 5216] setpgid(0, 0 [pid 5069] rmdir("./10" [pid 5216] <... setpgid resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] mkdir("./11", 0777 [pid 5216] <... openat resumed>) = 3 [pid 5069] <... mkdir resumed>) = 0 [pid 5216] write(3, "1000", 4 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5216] <... write resumed>) = 4 [pid 5069] <... openat resumed>) = 3 [pid 5216] close(3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5216] <... close resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5216] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5217 [ 70.686080][ T5211] REISERFS (device loop0): Using r5 hash to sort names [ 70.708316][ T5211] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5216] <... symlink resumed>) = 0 [pid 5216] memfd_create("syzkaller", 0) = 3 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5211] <... write resumed>) = 3904 [pid 5211] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5211] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5211] exit_group(0) = ? [pid 5211] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- ./strace-static-x86_64: Process 5217 attached [pid 5217] chdir("./11") = 0 [pid 5067] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5217] <... prctl resumed>) = 0 [pid 5067] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5217] setpgid(0, 0 [pid 5067] <... openat resumed>) = 3 [pid 5217] <... setpgid resumed>) = 0 [pid 5067] fstat(3, [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5217] <... openat resumed>) = 3 [pid 5067] getdents64(3, [pid 5217] write(3, "1000", 4 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5217] <... write resumed>) = 4 [pid 5067] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] close(3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5217] <... close resumed>) = 0 [pid 5067] lstat("./10/binderfs", [pid 5217] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5217] <... symlink resumed>) = 0 [pid 5067] unlink("./10/binderfs" [pid 5217] memfd_create("syzkaller", 0 [pid 5067] <... unlink resumed>) = 0 [pid 5217] <... memfd_create resumed>) = 3 [pid 5067] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5214] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5071] getdents64(4, [pid 5217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./11/file0") = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./11") = 0 [pid 5071] mkdir("./12", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5218 ./strace-static-x86_64: Process 5218 attached [pid 5218] chdir("./12") = 0 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5218] setpgid(0, 0) = 0 [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5218] write(3, "1000", 4 [pid 5214] <... write resumed>) = 4194304 [pid 5218] <... write resumed>) = 4 [pid 5218] close(3) = 0 [pid 5218] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5218] memfd_create("syzkaller", 0 [pid 5214] munmap(0x7f619b0de000, 4194304 [pid 5218] <... memfd_create resumed>) = 3 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5214] <... munmap resumed>) = 0 [pid 5218] <... mmap resumed>) = 0x7f619b0de000 [pid 5214] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5215] <... write resumed>) = 4194304 [pid 5215] munmap(0x7f619b0de000, 4194304 [pid 5214] <... openat resumed>) = 4 [pid 5215] <... munmap resumed>) = 0 [pid 5214] ioctl(4, LOOP_SET_FD, 3 [pid 5215] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5067] <... umount2 resumed>) = 0 [pid 5067] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5214] <... ioctl resumed>) = 0 [pid 5215] <... openat resumed>) = 4 [pid 5215] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5216] <... write resumed>) = 4194304 [pid 5214] close(3 [pid 5215] <... ioctl resumed>) = 0 [pid 5216] munmap(0x7f619b0de000, 4194304 [pid 5214] <... close resumed>) = 0 [pid 5215] close(3 [pid 5216] <... munmap resumed>) = 0 [pid 5067] getdents64(4, [pid 5216] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5215] <... close resumed>) = 0 [pid 5214] mkdir("./file0", 0777 [pid 5216] <... openat resumed>) = 4 [pid 5216] ioctl(4, LOOP_SET_FD, 3 [pid 5215] mkdir("./file0", 0777 [pid 5214] <... mkdir resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5067] rmdir("./10/file0") = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./10") = 0 [pid 5067] mkdir("./11", 0777 [pid 5214] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5215] <... mkdir resumed>) = 0 [pid 5215] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5067] <... mkdir resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5216] <... ioctl resumed>) = 0 [pid 5216] close(3) = 0 [pid 5216] mkdir("./file0", 0777 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5221 [ 70.925917][ T5214] loop3: detected capacity change from 0 to 8192 [ 70.933231][ T5215] loop5: detected capacity change from 0 to 8192 [ 70.942853][ T5216] loop1: detected capacity change from 0 to 8192 [ 70.962795][ T5215] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5216] <... mkdir resumed>) = 0 [pid 5216] mount("/dev/loop1", "./file0", "reiserfs", 0, ""./strace-static-x86_64: Process 5221 attached [pid 5218] <... write resumed>) = 4194304 [pid 5218] munmap(0x7f619b0de000, 4194304) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5218] ioctl(4, LOOP_SET_FD, 3 [pid 5221] chdir("./11") = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5217] <... write resumed>) = 4194304 [ 70.976354][ T5214] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 70.998919][ T5216] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 71.012722][ T5214] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5221] <... prctl resumed>) = 0 [pid 5217] munmap(0x7f619b0de000, 4194304 [pid 5218] <... ioctl resumed>) = 0 [pid 5218] close(3) = 0 [pid 5218] mkdir("./file0", 0777) = 0 [pid 5218] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5221] setpgid(0, 0 [pid 5217] <... munmap resumed>) = 0 [pid 5221] <... setpgid resumed>) = 0 [ 71.013786][ T5218] loop4: detected capacity change from 0 to 8192 [ 71.022359][ T5215] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 71.033672][ T5218] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 71.038460][ T5216] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 71.051413][ T5218] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 71.059717][ T5214] REISERFS (device loop3): using ordered data mode [pid 5217] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5217] <... openat resumed>) = 4 [pid 5221] <... openat resumed>) = 3 [pid 5217] ioctl(4, LOOP_SET_FD, 3 [pid 5221] write(3, "1000", 4) = 4 [ 71.069718][ T5218] REISERFS (device loop4): using ordered data mode [ 71.075630][ T5215] REISERFS (device loop5): using ordered data mode [ 71.082743][ T5218] reiserfs: using flush barriers [ 71.088558][ T5214] reiserfs: using flush barriers [ 71.095548][ T5218] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 71.098278][ T5217] loop2: detected capacity change from 0 to 8192 [ 71.120843][ T5216] REISERFS (device loop1): using ordered data mode [pid 5221] close(3) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] memfd_create("syzkaller", 0) = 3 [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 71.127922][ T5215] reiserfs: using flush barriers [ 71.128697][ T5218] REISERFS (device loop4): checking transaction log (loop4) [ 71.133957][ T5216] reiserfs: using flush barriers [ 71.145945][ T5215] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5217] <... ioctl resumed>) = 0 [pid 5217] close(3) = 0 [pid 5217] mkdir("./file0", 0777) = 0 [ 71.164848][ T5214] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 71.183476][ T5214] REISERFS (device loop3): checking transaction log (loop3) [ 71.191523][ T5216] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 71.210421][ T5215] REISERFS (device loop5): checking transaction log (loop5) [pid 5217] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [ 71.211149][ T5217] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 71.239943][ T5218] REISERFS (device loop4): Using r5 hash to sort names [ 71.271419][ T5218] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 71.274310][ T5216] REISERFS (device loop1): checking transaction log (loop1) [ 71.297987][ T5214] REISERFS (device loop3): Using r5 hash to sort names [ 71.299775][ T5215] REISERFS (device loop5): Using r5 hash to sort names [ 71.312253][ T5215] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5215] <... mount resumed>) = 0 [pid 5215] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5215] chdir("./file0") = 0 [pid 5215] ioctl(4, LOOP_CLR_FD) = 0 [pid 5215] close(4 [pid 5218] <... mount resumed>) = 0 [pid 5218] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5218] chdir("./file0") = 0 [pid 5218] ioctl(4, LOOP_CLR_FD) = 0 [pid 5218] close(4) = 0 [pid 5221] <... write resumed>) = 4194304 [pid 5218] creat("./bus", 000) = 4 [pid 5221] munmap(0x7f619b0de000, 4194304 [pid 5218] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5221] <... munmap resumed>) = 0 [pid 5218] <... write resumed>) = 32 [pid 5221] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 71.321606][ T5217] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 71.331376][ T5214] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5218] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5221] <... openat resumed>) = 4 [pid 5218] <... open resumed>) = 5 [pid 5221] ioctl(4, LOOP_SET_FD, 3 [pid 5218] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5218] write(5, 0x200000c0, 34136651 [pid 5215] <... close resumed>) = 0 [pid 5215] creat("./bus", 000) = 4 [pid 5215] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5215] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5215] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5214] <... mount resumed>) = 0 [pid 5221] <... ioctl resumed>) = 0 [pid 5215] write(5, 0x200000c0, 34136651 [pid 5214] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5221] close(3) = 0 [pid 5214] <... openat resumed>) = 3 [pid 5221] mkdir("./file0", 0777 [pid 5214] chdir("./file0" [pid 5221] <... mkdir resumed>) = 0 [pid 5214] <... chdir resumed>) = 0 [pid 5221] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5214] ioctl(4, LOOP_CLR_FD) = 0 [pid 5214] close(4) = 0 [pid 5214] creat("./bus", 000) = 4 [pid 5214] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5214] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5214] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 71.362606][ T5217] REISERFS (device loop2): using ordered data mode [ 71.370372][ T5221] loop0: detected capacity change from 0 to 8192 [ 71.378073][ T5217] reiserfs: using flush barriers [ 71.393069][ T5221] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5214] write(5, 0x200000c0, 34136651 [pid 5218] <... write resumed>) = 3904 [pid 5214] <... write resumed>) = 3904 [pid 5218] ioctl(4, FS_IOC_GETVERSION [pid 5214] ioctl(4, FS_IOC_GETVERSION [pid 5218] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5215] <... write resumed>) = 3904 [pid 5214] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5218] write(-1, 0x20000080, 296 [pid 5214] write(-1, 0x20000080, 296 [pid 5218] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5214] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5218] exit_group(0 [pid 5215] ioctl(4, FS_IOC_GETVERSION [pid 5214] exit_group(0 [pid 5218] <... exit_group resumed>) = ? [pid 5214] <... exit_group resumed>) = ? [pid 5215] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5215] write(-1, 0x20000080, 296 [pid 5218] +++ exited with 0 +++ [pid 5215] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5215] exit_group(0) = ? [pid 5215] +++ exited with 0 +++ [pid 5214] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5072] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 3 [pid 5071] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] fstat(3, [pid 5071] fstat(3, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5070] fstat(3, [pid 5071] getdents64(3, [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] lstat("./11/binderfs", [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] lstat("./12/binderfs", [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] unlink("./11/binderfs" [pid 5071] unlink("./12/binderfs" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... unlink resumed>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5070] lstat("./11/binderfs", [pid 5072] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./11/binderfs") = 0 [ 71.403519][ T5217] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 71.431987][ T5221] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 71.486308][ T5221] REISERFS (device loop0): using ordered data mode [ 71.504701][ T5217] REISERFS (device loop2): checking transaction log (loop2) [pid 5070] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] <... mount resumed>) = 0 [ 71.537584][ T5221] reiserfs: using flush barriers [ 71.542786][ T5217] REISERFS (device loop2): Using r5 hash to sort names [ 71.550703][ T5221] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 71.567130][ T5217] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 71.576845][ T5221] REISERFS (device loop0): checking transaction log (loop0) [pid 5217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5217] chdir("./file0") = 0 [pid 5217] ioctl(4, LOOP_CLR_FD) = 0 [pid 5217] close(4) = 0 [ 71.585010][ T5216] REISERFS (device loop1): Using r5 hash to sort names [pid 5217] creat("./bus", 000) = 4 [pid 5217] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5217] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5217] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5217] write(5, 0x200000c0, 34136651) = 3904 [pid 5217] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5217] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5217] exit_group(0) = ? [pid 5216] <... mount resumed>) = 0 [pid 5217] +++ exited with 0 +++ [pid 5216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./11/binderfs") = 0 [pid 5069] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] <... openat resumed>) = 3 [pid 5216] chdir("./file0") = 0 [pid 5216] ioctl(4, LOOP_CLR_FD [pid 5072] <... umount2 resumed>) = 0 [pid 5216] <... ioctl resumed>) = 0 [pid 5216] close(4) = 0 [pid 5216] creat("./bus", 000) = 4 [ 71.612337][ T5216] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5216] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5070] <... umount2 resumed>) = 0 [pid 5216] <... write resumed>) = 32 [pid 5216] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5216] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5070] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] write(5, 0x200000c0, 34136651 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./11/file0", [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... umount2 resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(4, [pid 5070] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 5071] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... openat resumed>) = 4 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] fstat(4, [pid 5072] getdents64(4, [pid 5071] lstat("./12/file0", [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5216] <... write resumed>) = 3904 [pid 5072] close(4 [pid 5071] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5216] ioctl(4, FS_IOC_GETVERSION [pid 5072] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(4, [pid 5072] rmdir("./11/file0" [pid 5216] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5071] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5216] write(-1, 0x20000080, 296 [pid 5072] getdents64(3, [pid 5071] <... openat resumed>) = 4 [pid 5070] close(4 [pid 5216] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] fstat(4, [pid 5070] <... close resumed>) = 0 [pid 5216] exit_group(0 [pid 5072] close(3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] rmdir("./11/file0" [pid 5216] <... exit_group resumed>) = ? [pid 5072] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5216] +++ exited with 0 +++ [pid 5072] rmdir("./11" [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, [pid 5072] <... rmdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5072] mkdir("./12", 0777 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] close(4 [pid 5070] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5070] rmdir("./11" [pid 5068] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 5071] rmdir("./12/file0" [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... rmdir resumed>) = 0 [pid 5070] mkdir("./12", 0777 [pid 5068] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] getdents64(3, [pid 5070] <... mkdir resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5068] fstat(3, [pid 5071] close(3 [pid 5070] <... openat resumed>) = 3 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5068] getdents64(3, [pid 5071] rmdir("./12" [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] <... rmdir resumed>) = 0 [pid 5070] close(3 [pid 5068] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] mkdir("./13", 0777 [pid 5070] <... close resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... mkdir resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] lstat("./11/binderfs", [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5226 [pid 5068] unlink("./11/binderfs" [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5068] <... unlink resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5227 ./strace-static-x86_64: Process 5227 attached [pid 5227] chdir("./13") = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5227] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5226 attached [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5226] chdir("./12" [pid 5072] close(3 [pid 5227] <... memfd_create resumed>) = 3 [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5226] <... chdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5226] <... prctl resumed>) = 0 [pid 5226] setpgid(0, 0) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5228 [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "1000", 4./strace-static-x86_64: Process 5228 attached ) = 4 [pid 5228] chdir("./12" [pid 5226] close(3 [pid 5228] <... chdir resumed>) = 0 [pid 5226] <... close resumed>) = 0 [pid 5221] <... mount resumed>) = 0 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5226] symlink("/dev/binderfs", "./binderfs" [pid 5221] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5228] <... prctl resumed>) = 0 [pid 5226] <... symlink resumed>) = 0 [pid 5221] <... openat resumed>) = 3 [pid 5228] setpgid(0, 0 [pid 5226] memfd_create("syzkaller", 0 [pid 5221] chdir("./file0" [pid 5228] <... setpgid resumed>) = 0 [pid 5226] <... memfd_create resumed>) = 3 [pid 5221] <... chdir resumed>) = 0 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5221] ioctl(4, LOOP_CLR_FD [pid 5228] <... openat resumed>) = 3 [pid 5226] <... mmap resumed>) = 0x7f619b0de000 [pid 5228] write(3, "1000", 4 [pid 5221] <... ioctl resumed>) = 0 [ 71.716189][ T5221] REISERFS (device loop0): Using r5 hash to sort names [ 71.723396][ T5221] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5228] <... write resumed>) = 4 [pid 5221] close(4 [pid 5228] close(3) = 0 [pid 5221] <... close resumed>) = 0 [pid 5228] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] creat("./bus", 000 [pid 5228] memfd_create("syzkaller", 0 [pid 5221] <... creat resumed>) = 4 [pid 5228] <... memfd_create resumed>) = 3 [pid 5221] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5221] <... write resumed>) = 32 [pid 5069] <... umount2 resumed>) = 0 [pid 5221] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5221] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5069] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5221] <... mmap resumed>) = 0x20000000 [pid 5221] write(5, 0x200000c0, 34136651 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./11/file0") = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./11") = 0 [pid 5069] mkdir("./12", 0777 [pid 5221] <... write resumed>) = 3904 [pid 5069] <... mkdir resumed>) = 0 [pid 5221] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5221] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5221] exit_group(0) = ? [pid 5221] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] fstat(3, [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5067] getdents64(3, [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5067] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... close resumed>) = 0 [pid 5067] lstat("./11/binderfs", [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] unlink("./11/binderfs" [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5229 [pid 5067] <... unlink resumed>) = 0 [pid 5067] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5229 attached [pid 5229] chdir("./12") = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1000", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5229] memfd_create("syzkaller", 0) = 3 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5226] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./11/file0") = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./11") = 0 [pid 5068] mkdir("./12", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5230 ./strace-static-x86_64: Process 5230 attached [pid 5230] chdir("./12") = 0 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5230] setpgid(0, 0) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5230] write(3, "1000", 4) = 4 [pid 5230] close(3) = 0 [pid 5230] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5230] memfd_create("syzkaller", 0) = 3 [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5227] <... write resumed>) = 4194304 [pid 5227] munmap(0x7f619b0de000, 4194304) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5227] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... umount2 resumed>) = 0 [pid 5067] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5067] rmdir("./11/file0") = 0 [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5227] <... ioctl resumed>) = 0 [pid 5067] close(3 [pid 5228] <... write resumed>) = 4194304 [pid 5227] close(3 [pid 5226] <... write resumed>) = 4194304 [pid 5227] <... close resumed>) = 0 [pid 5227] mkdir("./file0", 0777 [pid 5067] <... close resumed>) = 0 [pid 5228] munmap(0x7f619b0de000, 4194304 [pid 5227] <... mkdir resumed>) = 0 [pid 5226] munmap(0x7f619b0de000, 4194304 [pid 5227] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5067] rmdir("./11" [pid 5228] <... munmap resumed>) = 0 [pid 5226] <... munmap resumed>) = 0 [ 71.956126][ T5227] loop4: detected capacity change from 0 to 8192 [pid 5230] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5229] <... write resumed>) = 4194304 [pid 5228] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5226] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] <... rmdir resumed>) = 0 [pid 5229] munmap(0x7f619b0de000, 4194304 [pid 5228] <... openat resumed>) = 4 [pid 5226] <... openat resumed>) = 4 [pid 5067] mkdir("./12", 0777 [pid 5229] <... munmap resumed>) = 0 [pid 5228] ioctl(4, LOOP_SET_FD, 3 [pid 5226] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... mkdir resumed>) = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5229] <... openat resumed>) = 4 [pid 5067] <... openat resumed>) = 3 [pid 5229] ioctl(4, LOOP_SET_FD, 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 71.996861][ T5227] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 72.006575][ T5228] loop5: detected capacity change from 0 to 8192 [ 72.010463][ T5227] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 72.016988][ T5226] loop3: detected capacity change from 0 to 8192 [ 72.032210][ T5227] REISERFS (device loop4): using ordered data mode [ 72.034190][ T5229] loop2: detected capacity change from 0 to 8192 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5232 [pid 5229] <... ioctl resumed>) = 0 [pid 5229] close(3) = 0 [pid 5229] mkdir("./file0", 0777) = 0 [pid 5229] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5226] <... ioctl resumed>) = 0 [pid 5226] close(3) = 0 [pid 5226] mkdir("./file0", 0777) = 0 [pid 5226] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5228] <... ioctl resumed>) = 0 [pid 5228] close(3) = 0 [pid 5228] mkdir("./file0", 0777) = 0 [pid 5228] mount("/dev/loop5", "./file0", "reiserfs", 0, ""./strace-static-x86_64: Process 5232 attached [pid 5232] chdir("./12") = 0 [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 72.039499][ T5227] reiserfs: using flush barriers [ 72.053511][ T5227] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 72.072040][ T5227] REISERFS (device loop4): checking transaction log (loop4) [ 72.080081][ T5226] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 72.094339][ T5228] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 72.099776][ T5226] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 72.107331][ T5228] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 72.107394][ T5228] REISERFS (device loop5): using ordered data mode [ 72.116851][ T5229] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5232] setpgid(0, 0 [pid 5230] <... write resumed>) = 4194304 [pid 5232] <... setpgid resumed>) = 0 [pid 5230] munmap(0x7f619b0de000, 4194304 [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] <... munmap resumed>) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5230] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5232] write(3, "1000", 4 [pid 5230] <... openat resumed>) = 4 [pid 5232] <... write resumed>) = 4 [pid 5230] ioctl(4, LOOP_SET_FD, 3 [pid 5232] close(3) = 0 [pid 5232] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5232] memfd_create("syzkaller", 0) = 3 [pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 72.125706][ T5228] reiserfs: using flush barriers [ 72.134210][ T5230] loop1: detected capacity change from 0 to 8192 [ 72.145787][ T5226] REISERFS (device loop3): using ordered data mode [ 72.164584][ T5226] reiserfs: using flush barriers [ 72.169606][ T5228] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5230] <... ioctl resumed>) = 0 [pid 5230] close(3) = 0 [pid 5230] mkdir("./file0", 0777) = 0 [ 72.191576][ T5226] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 72.192710][ T5229] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 72.209977][ T5228] REISERFS (device loop5): checking transaction log (loop5) [ 72.220154][ T5229] REISERFS (device loop2): using ordered data mode [ 72.233804][ T5229] reiserfs: using flush barriers [pid 5230] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [ 72.243209][ T5230] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 72.248678][ T5227] REISERFS (device loop4): Using r5 hash to sort names [ 72.263113][ T5229] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 72.268892][ T5230] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 72.282600][ T5226] REISERFS (device loop3): checking transaction log (loop3) [pid 5232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 5232] munmap(0x7f619b0de000, 4194304) = 0 [pid 5232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5232] ioctl(4, LOOP_SET_FD, 3 [pid 5227] <... mount resumed>) = 0 [pid 5232] <... ioctl resumed>) = 0 [pid 5232] close(3) = 0 [pid 5232] mkdir("./file0", 0777) = 0 [ 72.304475][ T5229] REISERFS (device loop2): checking transaction log (loop2) [ 72.315674][ T5227] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 72.321796][ T5232] loop0: detected capacity change from 0 to 8192 [ 72.330624][ T5230] REISERFS (device loop1): using ordered data mode [ 72.337723][ T5232] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5232] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5227] chdir("./file0") = 0 [pid 5227] ioctl(4, LOOP_CLR_FD) = 0 [pid 5227] close(4) = 0 [pid 5227] creat("./bus", 000) = 4 [pid 5227] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5227] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [ 72.337740][ T5232] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 72.337797][ T5232] REISERFS (device loop0): using ordered data mode [ 72.358420][ T5230] reiserfs: using flush barriers [ 72.372228][ T5232] reiserfs: using flush barriers [ 72.383162][ T5232] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5227] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5227] write(5, 0x200000c0, 34136651) = 3904 [pid 5227] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5227] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5227] exit_group(0) = ? [pid 5227] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5071] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 72.399985][ T5232] REISERFS (device loop0): checking transaction log (loop0) [ 72.416951][ T5230] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 72.434052][ T5230] REISERFS (device loop1): checking transaction log (loop1) [pid 5071] unlink("./13/binderfs") = 0 [pid 5228] <... mount resumed>) = 0 [pid 5071] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5228] chdir("./file0") = 0 [pid 5228] ioctl(4, LOOP_CLR_FD) = 0 [pid 5228] close(4) = 0 [pid 5228] creat("./bus", 000) = 4 [pid 5228] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5228] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5228] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [ 72.449614][ T5228] REISERFS (device loop5): Using r5 hash to sort names [ 72.458698][ T5228] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5228] write(5, 0x200000c0, 34136651) = 3904 [pid 5228] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5228] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5228] exit_group(0) = ? [pid 5228] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5072] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./12/binderfs") = 0 [pid 5230] <... mount resumed>) = 0 [ 72.514519][ T5230] REISERFS (device loop1): Using r5 hash to sort names [ 72.519924][ T5229] REISERFS (device loop2): Using r5 hash to sort names [ 72.521598][ T5230] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 72.541673][ T5232] REISERFS (device loop0): Using r5 hash to sort names [ 72.549727][ T5232] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5230] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5232] <... mount resumed>) = 0 [pid 5230] <... openat resumed>) = 3 [pid 5230] chdir("./file0") = 0 [pid 5230] ioctl(4, LOOP_CLR_FD) = 0 [pid 5230] close(4 [pid 5232] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5230] <... close resumed>) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5230] creat("./bus", 000 [pid 5232] chdir("./file0" [pid 5230] <... creat resumed>) = 4 [pid 5232] <... chdir resumed>) = 0 [pid 5230] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5232] ioctl(4, LOOP_CLR_FD [pid 5230] <... write resumed>) = 32 [pid 5230] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5232] <... ioctl resumed>) = 0 [pid 5230] <... open resumed>) = 5 [pid 5232] close(4 [pid 5230] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5232] <... close resumed>) = 0 [pid 5230] <... mmap resumed>) = 0x20000000 [pid 5232] creat("./bus", 000 [pid 5230] write(5, 0x200000c0, 34136651 [pid 5232] <... creat resumed>) = 4 [pid 5232] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5232] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5229] <... mount resumed>) = 0 [pid 5232] <... open resumed>) = 5 [pid 5232] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5229] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5232] <... mmap resumed>) = 0x20000000 [pid 5229] <... openat resumed>) = 3 [pid 5230] <... write resumed>) = 3904 [pid 5072] <... umount2 resumed>) = 0 [pid 5232] write(5, 0x200000c0, 34136651 [pid 5230] ioctl(4, FS_IOC_GETVERSION [pid 5229] chdir("./file0" [pid 5226] <... mount resumed>) = 0 [pid 5072] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5230] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5229] <... chdir resumed>) = 0 [pid 5226] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5230] write(-1, 0x20000080, 296 [pid 5229] ioctl(4, LOOP_CLR_FD [pid 5226] <... openat resumed>) = 3 [pid 5072] lstat("./12/file0", [pid 5230] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5229] <... ioctl resumed>) = 0 [pid 5226] chdir("./file0" [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5230] exit_group(0 [pid 5229] close(4 [pid 5226] <... chdir resumed>) = 0 [pid 5072] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5230] <... exit_group resumed>) = ? [pid 5229] <... close resumed>) = 0 [pid 5226] ioctl(4, LOOP_CLR_FD [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5230] +++ exited with 0 +++ [pid 5229] creat("./bus", 000 [pid 5226] <... ioctl resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5229] <... creat resumed>) = 4 [pid 5226] close(4 [pid 5072] <... openat resumed>) = 4 [pid 5229] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5226] <... close resumed>) = 0 [pid 5072] fstat(4, [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5229] <... write resumed>) = 32 [pid 5226] creat("./bus", 000 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5229] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... creat resumed>) = 4 [pid 5072] getdents64(4, [pid 5229] <... open resumed>) = 5 [pid 5068] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5229] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5226] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5072] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] <... openat resumed>) = 3 [pid 5068] fstat(3, [pid 5229] <... mmap resumed>) = 0x20000000 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5229] write(5, 0x200000c0, 34136651 [pid 5226] <... write resumed>) = 32 [pid 5072] getdents64(4, [pid 5068] getdents64(3, [pid 5226] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5072] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5232] <... write resumed>) = 3904 [pid 5226] <... open resumed>) = 5 [pid 5072] close(4 [pid 5068] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5232] ioctl(4, FS_IOC_GETVERSION [pid 5226] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5072] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5232] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5226] <... mmap resumed>) = 0x20000000 [pid 5068] lstat("./12/binderfs", [pid 5226] write(5, 0x200000c0, 34136651 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./12/binderfs" [pid 5072] rmdir("./12/file0" [pid 5068] <... unlink resumed>) = 0 [pid 5232] write(-1, 0x20000080, 296 [ 72.559243][ T5226] REISERFS (device loop3): Using r5 hash to sort names [ 72.566546][ T5229] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 72.603016][ T5226] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5232] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... write resumed>) = 3904 [pid 5226] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5226] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5226] exit_group(0 [pid 5232] exit_group(0 [pid 5226] <... exit_group resumed>) = ? [pid 5072] getdents64(3, [pid 5071] lstat("./13/file0", [pid 5232] <... exit_group resumed>) = ? [pid 5229] <... write resumed>) = 3904 [pid 5226] +++ exited with 0 +++ [pid 5229] ioctl(4, FS_IOC_GETVERSION [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5232] +++ exited with 0 +++ [pid 5229] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5072] close(3 [pid 5071] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5229] write(-1, 0x20000080, 296 [pid 5072] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5229] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5072] rmdir("./12" [pid 5071] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... restart_syscall resumed>) = 0 [pid 5229] exit_group(0 [pid 5072] <... rmdir resumed>) = 0 [pid 5229] <... exit_group resumed>) = ? [pid 5072] mkdir("./13", 0777 [pid 5071] <... openat resumed>) = 4 [pid 5070] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5229] +++ exited with 0 +++ [pid 5071] fstat(4, [pid 5070] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] fstat(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5067] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] getdents64(4, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5067] fstat(3, [pid 5072] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, [pid 5069] <... restart_syscall resumed>) = 0 [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] getdents64(3, [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] close(3 [pid 5071] close(4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5070] lstat("./12/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] lstat("./12/binderfs", [pid 5070] unlink("./12/binderfs" [pid 5069] <... openat resumed>) = 3 [pid 5067] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5069] fstat(3, [pid 5067] unlink("./12/binderfs" [pid 5070] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... unlink resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] rmdir("./13/file0" [pid 5069] getdents64(3, [pid 5067] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5238 attached [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5238 [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] lstat("./12/binderfs", [pid 5071] close(3 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] unlink("./12/binderfs" [pid 5238] chdir("./13" [pid 5071] rmdir("./13" [pid 5069] <... unlink resumed>) = 0 [pid 5238] <... chdir resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] mkdir("./14", 0777 [pid 5238] <... prctl resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5238] setpgid(0, 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5238] <... setpgid resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5238] <... openat resumed>) = 3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5238] write(3, "1000", 4 [pid 5071] close(3 [pid 5238] <... write resumed>) = 4 [pid 5071] <... close resumed>) = 0 [pid 5238] close(3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] <... close resumed>) = 0 [pid 5238] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5239 [pid 5238] <... symlink resumed>) = 0 [pid 5238] memfd_create("syzkaller", 0) = 3 [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 ./strace-static-x86_64: Process 5239 attached [pid 5239] chdir("./14") = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0 [pid 5070] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] <... setpgid resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] lstat("./12/file0", [pid 5068] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] <... openat resumed>) = 3 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] write(3, "1000", 4 [pid 5070] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] lstat("./12/file0", [pid 5239] <... write resumed>) = 4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5239] close(3 [pid 5070] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] symlink("/dev/binderfs", "./binderfs" [pid 5070] fstat(4, [pid 5068] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5239] <... symlink resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5239] memfd_create("syzkaller", 0 [pid 5070] getdents64(4, [pid 5068] fstat(4, [pid 5239] <... memfd_create resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5070] getdents64(4, [pid 5068] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./12/file0") = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, [pid 5068] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] close(4 [pid 5070] rmdir("./12") = 0 [pid 5070] mkdir("./13", 0777 [pid 5068] <... close resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5068] rmdir("./12/file0" [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5068] <... rmdir resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 5068] getdents64(3, [pid 5070] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] close(3 [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5240 [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./12"./strace-static-x86_64: Process 5240 attached ) = 0 [pid 5068] mkdir("./13", 0777 [pid 5240] chdir("./13" [pid 5068] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5240] <... chdir resumed>) = 0 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5240] <... prctl resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5240] setpgid(0, 0 [pid 5068] close(3 [pid 5240] <... setpgid resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... umount2 resumed>) = 0 [pid 5240] <... openat resumed>) = 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5240] write(3, "1000", 4) = 4 [pid 5067] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5241 attached [pid 5240] close(3 [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5241 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5241] chdir("./13" [pid 5240] <... close resumed>) = 0 [pid 5067] lstat("./12/file0", [pid 5241] <... chdir resumed>) = 0 [pid 5240] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] <... symlink resumed>) = 0 [pid 5067] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5240] memfd_create("syzkaller", 0 [pid 5241] <... prctl resumed>) = 0 [pid 5240] <... memfd_create resumed>) = 3 [pid 5239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5241] setpgid(0, 0 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5238] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5240] <... mmap resumed>) = 0x7f619b0de000 [pid 5067] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5241] <... setpgid resumed>) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] fstat(4, [pid 5241] write(3, "1000", 4 [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5241] <... write resumed>) = 4 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5241] close(3 [pid 5067] getdents64(4, [pid 5241] <... close resumed>) = 0 [pid 5241] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] close(4 [pid 5241] <... symlink resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5241] memfd_create("syzkaller", 0 [pid 5067] rmdir("./12/file0" [pid 5241] <... memfd_create resumed>) = 3 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5241] <... mmap resumed>) = 0x7f619b0de000 [pid 5067] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./12") = 0 [pid 5067] mkdir("./13", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5242 [pid 5069] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5242 attached [pid 5242] chdir("./13") = 0 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5242] setpgid(0, 0) = 0 [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5242] write(3, "1000", 4) = 4 [pid 5242] close(3) = 0 [pid 5242] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5242] memfd_create("syzkaller", 0) = 3 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5069] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./12/file0" [pid 5240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./12") = 0 [pid 5069] mkdir("./13", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] <... close resumed>) = 0 [pid 5239] <... write resumed>) = 4194304 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5243 ./strace-static-x86_64: Process 5243 attached [pid 5242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5239] munmap(0x7f619b0de000, 4194304 [pid 5238] <... write resumed>) = 4194304 [pid 5239] <... munmap resumed>) = 0 [pid 5238] munmap(0x7f619b0de000, 4194304) = 0 [pid 5239] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5238] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5239] <... openat resumed>) = 4 [pid 5238] <... openat resumed>) = 4 [pid 5239] ioctl(4, LOOP_SET_FD, 3 [pid 5238] ioctl(4, LOOP_SET_FD, 3 [pid 5243] chdir("./13" [pid 5241] <... write resumed>) = 4194304 [pid 5240] <... write resumed>) = 4194304 [pid 5238] <... ioctl resumed>) = 0 [pid 5243] <... chdir resumed>) = 0 [pid 5240] munmap(0x7f619b0de000, 4194304 [pid 5238] close(3 [pid 5239] <... ioctl resumed>) = 0 [pid 5239] close(3 [pid 5238] <... close resumed>) = 0 [pid 5239] <... close resumed>) = 0 [pid 5238] mkdir("./file0", 0777 [pid 5240] <... munmap resumed>) = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5243] <... prctl resumed>) = 0 [pid 5240] <... openat resumed>) = 4 [pid 5240] ioctl(4, LOOP_SET_FD, 3 [pid 5243] setpgid(0, 0 [pid 5239] mkdir("./file0", 0777 [pid 5238] <... mkdir resumed>) = 0 [pid 5239] <... mkdir resumed>) = 0 [pid 5238] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5239] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5243] <... setpgid resumed>) = 0 [pid 5241] munmap(0x7f619b0de000, 4194304 [pid 5240] <... ioctl resumed>) = 0 [ 72.947540][ T5239] loop4: detected capacity change from 0 to 8192 [ 72.954151][ T5238] loop5: detected capacity change from 0 to 8192 [ 72.964592][ T5240] loop3: detected capacity change from 0 to 8192 [ 72.968470][ T5238] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5242] <... write resumed>) = 4194304 [pid 5241] <... munmap resumed>) = 0 [pid 5240] close(3 [pid 5243] write(3, "1000", 4 [pid 5242] munmap(0x7f619b0de000, 4194304 [pid 5241] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5240] <... close resumed>) = 0 [pid 5243] <... write resumed>) = 4 [pid 5242] <... munmap resumed>) = 0 [pid 5241] <... openat resumed>) = 4 [ 72.985282][ T5239] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 72.989252][ T5238] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 72.999130][ T5239] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 73.008328][ T5238] REISERFS (device loop5): using ordered data mode [ 73.017097][ T5239] REISERFS (device loop4): using ordered data mode [ 73.024541][ T5238] reiserfs: using flush barriers [ 73.034727][ T5239] reiserfs: using flush barriers [pid 5240] mkdir("./file0", 0777 [pid 5243] close(3 [pid 5242] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5241] ioctl(4, LOOP_SET_FD, 3 [pid 5240] <... mkdir resumed>) = 0 [pid 5243] <... close resumed>) = 0 [pid 5242] <... openat resumed>) = 4 [ 73.039806][ T5238] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.040081][ T5238] REISERFS (device loop5): checking transaction log (loop5) [ 73.057348][ T5239] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.063863][ T5241] loop1: detected capacity change from 0 to 8192 [ 73.080033][ T5239] REISERFS (device loop4): checking transaction log (loop4) [pid 5243] symlink("/dev/binderfs", "./binderfs" [pid 5242] ioctl(4, LOOP_SET_FD, 3 [pid 5241] <... ioctl resumed>) = 0 [pid 5240] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5243] <... symlink resumed>) = 0 [pid 5243] memfd_create("syzkaller", 0) = 3 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5242] <... ioctl resumed>) = 0 [pid 5241] close(3 [pid 5242] close(3 [pid 5241] <... close resumed>) = 0 [pid 5241] mkdir("./file0", 0777 [pid 5242] <... close resumed>) = 0 [pid 5242] mkdir("./file0", 0777 [pid 5241] <... mkdir resumed>) = 0 [pid 5242] <... mkdir resumed>) = 0 [pid 5241] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [ 73.090487][ T5242] loop0: detected capacity change from 0 to 8192 [ 73.105852][ T5240] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.147381][ T5241] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.152276][ T5240] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 73.160837][ T5241] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 73.172261][ T5242] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5242] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [pid 5243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [ 73.181102][ T5241] REISERFS (device loop1): using ordered data mode [ 73.200596][ T5241] reiserfs: using flush barriers [ 73.201303][ T5238] REISERFS (device loop5): Using r5 hash to sort names [ 73.208235][ T5240] REISERFS (device loop3): using ordered data mode [ 73.213015][ T5241] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.233485][ T5240] reiserfs: using flush barriers [pid 5243] munmap(0x7f619b0de000, 4194304) = 0 [pid 5243] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 73.241624][ T5242] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 73.241693][ T5240] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.251015][ T5242] REISERFS (device loop0): using ordered data mode [ 73.273384][ T5242] reiserfs: using flush barriers [ 73.279702][ T5238] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 73.282726][ T5243] loop2: detected capacity change from 0 to 8192 [pid 5243] ioctl(4, LOOP_SET_FD, 3 [pid 5238] <... mount resumed>) = 0 [pid 5238] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5238] chdir("./file0") = 0 [pid 5238] ioctl(4, LOOP_CLR_FD) = 0 [pid 5238] close(4) = 0 [pid 5238] creat("./bus", 000) = 4 [pid 5238] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5238] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5238] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5238] write(5, 0x200000c0, 34136651 [pid 5243] <... ioctl resumed>) = 0 [pid 5238] <... write resumed>) = 3904 [pid 5238] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5238] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5238] exit_group(0) = ? [pid 5243] close(3) = 0 [pid 5243] mkdir("./file0", 0777) = 0 [pid 5243] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5238] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 73.289889][ T5241] REISERFS (device loop1): checking transaction log (loop1) [ 73.298640][ T5242] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.306015][ T5240] REISERFS (device loop3): checking transaction log (loop3) [ 73.338580][ T5242] REISERFS (device loop0): checking transaction log (loop0) [pid 5072] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./13/binderfs") = 0 [pid 5072] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] <... mount resumed>) = 0 [pid 5239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5239] chdir("./file0") = 0 [pid 5239] ioctl(4, LOOP_CLR_FD) = 0 [pid 5239] close(4) = 0 [pid 5239] creat("./bus", 000) = 4 [pid 5239] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5239] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [ 73.358191][ T5239] REISERFS (device loop4): Using r5 hash to sort names [ 73.370970][ T5239] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 73.372658][ T5243] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5239] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5239] write(5, 0x200000c0, 34136651) = 3904 [pid 5239] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5239] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5239] exit_group(0) = ? [ 73.414645][ T5243] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 73.425718][ T5243] REISERFS (device loop2): using ordered data mode [ 73.433039][ T5243] reiserfs: using flush barriers [ 73.439843][ T5243] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5239] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5071] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./14/binderfs") = 0 [ 73.458728][ T5243] REISERFS (device loop2): checking transaction log (loop2) [ 73.461627][ T5241] REISERFS (device loop1): Using r5 hash to sort names [ 73.494892][ T5241] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./13/file0") = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./13") = 0 [pid 5072] mkdir("./14", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5250 ./strace-static-x86_64: Process 5250 attached [pid 5250] chdir("./14" [pid 5241] <... mount resumed>) = 0 [pid 5241] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5250] <... chdir resumed>) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5250] setpgid(0, 0) = 0 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5250] write(3, "1000", 4) = 4 [pid 5250] close(3) = 0 [pid 5250] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5241] <... openat resumed>) = 3 [ 73.533630][ T5243] REISERFS (device loop2): Using r5 hash to sort names [ 73.539241][ T5240] REISERFS (device loop3): Using r5 hash to sort names [ 73.572157][ T5243] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5241] chdir("./file0" [pid 5250] memfd_create("syzkaller", 0) = 3 [pid 5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5240] <... mount resumed>) = 0 [pid 5241] <... chdir resumed>) = 0 [pid 5241] ioctl(4, LOOP_CLR_FD [pid 5243] <... mount resumed>) = 0 [pid 5243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5243] chdir("./file0") = 0 [pid 5243] ioctl(4, LOOP_CLR_FD) = 0 [pid 5243] close(4) = 0 [pid 5241] <... ioctl resumed>) = 0 [pid 5241] close(4) = 0 [pid 5241] creat("./bus", 000) = 4 [pid 5241] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5240] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5241] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5240] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = 0 [pid 5242] <... mount resumed>) = 0 [pid 5241] <... open resumed>) = 5 [pid 5240] chdir("./file0" [pid 5071] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5242] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5241] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5240] <... chdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5241] <... mmap resumed>) = 0x20000000 [pid 5240] ioctl(4, LOOP_CLR_FD [pid 5071] lstat("./14/file0", [pid 5242] <... openat resumed>) = 3 [pid 5242] chdir("./file0" [pid 5241] write(5, 0x200000c0, 34136651 [pid 5240] <... ioctl resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5242] <... chdir resumed>) = 0 [pid 5240] close(4 [pid 5071] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5242] ioctl(4, LOOP_CLR_FD [pid 5240] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5242] <... ioctl resumed>) = 0 [pid 5240] creat("./bus", 000 [pid 5071] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5242] close(4 [pid 5240] <... creat resumed>) = 4 [pid 5071] <... openat resumed>) = 4 [pid 5243] creat("./bus", 000 [pid 5242] <... close resumed>) = 0 [pid 5240] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5071] fstat(4, [pid 5243] <... creat resumed>) = 4 [pid 5242] creat("./bus", 000 [pid 5240] <... write resumed>) = 32 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5243] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5242] <... creat resumed>) = 4 [pid 5240] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5071] getdents64(4, [pid 5243] <... write resumed>) = 32 [pid 5242] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5240] <... open resumed>) = 5 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5243] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5242] <... write resumed>) = 32 [pid 5240] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5071] getdents64(4, [pid 5243] <... open resumed>) = 5 [pid 5242] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5240] <... mmap resumed>) = 0x20000000 [pid 5071] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5243] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5242] <... open resumed>) = 5 [pid 5240] write(5, 0x200000c0, 34136651 [pid 5071] close(4 [pid 5243] <... mmap resumed>) = 0x20000000 [pid 5242] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5241] <... write resumed>) = 3904 [pid 5071] <... close resumed>) = 0 [pid 5243] write(5, 0x200000c0, 34136651 [pid 5242] <... mmap resumed>) = 0x20000000 [pid 5241] ioctl(4, FS_IOC_GETVERSION [pid 5071] rmdir("./14/file0" [pid 5242] write(5, 0x200000c0, 34136651 [pid 5241] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5071] <... rmdir resumed>) = 0 [pid 5241] write(-1, 0x20000080, 296 [pid 5071] getdents64(3, [pid 5241] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5071] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5241] exit_group(0 [pid 5071] close(3 [pid 5241] <... exit_group resumed>) = ? [pid 5071] <... close resumed>) = 0 [pid 5241] +++ exited with 0 +++ [pid 5071] rmdir("./14") = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5071] mkdir("./15", 0777) = 0 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... restart_syscall resumed>) = 0 [pid 5243] <... write resumed>) = 3904 [pid 5242] <... write resumed>) = 3904 [pid 5240] <... write resumed>) = 3904 [pid 5071] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5251 [pid 5242] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5242] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5242] exit_group(0) = ? ./strace-static-x86_64: Process 5251 attached [pid 5243] ioctl(4, FS_IOC_GETVERSION [pid 5242] +++ exited with 0 +++ [pid 5240] ioctl(4, FS_IOC_GETVERSION [pid 5251] chdir("./15" [pid 5243] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5240] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5240] write(-1, 0x20000080, 296 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5243] write(-1, 0x20000080, 296 [pid 5251] <... chdir resumed>) = 0 [pid 5240] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5068] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5243] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5243] exit_group(0 [pid 5240] exit_group(0 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] <... prctl resumed>) = 0 [pid 5243] <... exit_group resumed>) = ? [pid 5240] <... exit_group resumed>) = ? [pid 5067] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 [pid 5243] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5251] setpgid(0, 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5240] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5069] <... restart_syscall resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... setpgid resumed>) = 0 [pid 5068] fstat(3, [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5251] <... openat resumed>) = 3 [pid 5067] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, [pid 5070] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] fstat(3, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 5251] write(3, "1000", 4 [pid 5068] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5251] <... write resumed>) = 4 [pid 5070] <... openat resumed>) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] fstat(3, [pid 5067] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5251] close(3 [pid 5070] getdents64(3, [pid 5069] getdents64(3, [pid 5068] lstat("./13/binderfs", [pid 5067] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5251] <... close resumed>) = 0 [pid 5069] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 73.594124][ T5240] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 73.604513][ T5242] REISERFS (device loop0): Using r5 hash to sort names [ 73.611623][ T5242] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5251] symlink("/dev/binderfs", "./binderfs" [pid 5070] lstat("./13/binderfs", [pid 5069] lstat("./13/binderfs", [pid 5067] lstat("./13/binderfs", [pid 5068] unlink("./13/binderfs" [pid 5251] <... symlink resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5067] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5070] unlink("./13/binderfs" [pid 5069] unlink("./13/binderfs" [pid 5067] unlink("./13/binderfs" [pid 5251] memfd_create("syzkaller", 0 [pid 5070] <... unlink resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5068] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... unlink resumed>) = 0 [pid 5070] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5251] <... memfd_create resumed>) = 3 [pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5250] <... write resumed>) = 4194304 [pid 5250] munmap(0x7f619b0de000, 4194304) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5250] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5250] close(3) = 0 [pid 5250] mkdir("./file0", 0777) = 0 [pid 5250] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./13/file0") = 0 [pid 5070] getdents64(3, [pid 5069] <... umount2 resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5069] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] rmdir("./13" [pid 5069] lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] mkdir("./14", 0777 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./13/file0") = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./13") = 0 [pid 5069] mkdir("./14", 0777 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] close(3 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... close resumed>) = 0 [pid 5069] close(3) = 0 [ 73.720579][ T5250] loop5: detected capacity change from 0 to 8192 [ 73.754039][ T5250] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5253 [pid 5069] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5254 ./strace-static-x86_64: Process 5253 attached ./strace-static-x86_64: Process 5254 attached [pid 5253] chdir("./14") = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5253] setpgid(0, 0) = 0 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5253] write(3, "1000", 4) = 4 [pid 5253] close(3) = 0 [pid 5253] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5253] memfd_create("syzkaller", 0) = 3 [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5254] chdir("./14") = 0 [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5254] setpgid(0, 0) = 0 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5254] write(3, "1000", 4) = 4 [pid 5254] close(3) = 0 [pid 5254] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5254] memfd_create("syzkaller", 0) = 3 [pid 5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [ 73.783359][ T5250] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 73.793238][ T5250] REISERFS (device loop5): using ordered data mode [ 73.801537][ T5250] reiserfs: using flush barriers [ 73.808715][ T5250] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5067] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5067] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 73.853959][ T5250] REISERFS (device loop5): checking transaction log (loop5) [pid 5067] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, [pid 5068] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] close(4 [pid 5068] lstat("./13/file0", [pid 5067] <... close resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] rmdir("./13/file0" [pid 5068] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(3, [pid 5068] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5067] close(3 [pid 5068] fstat(4, [pid 5067] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] rmdir("./13" [pid 5068] getdents64(4, [pid 5067] <... rmdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, [pid 5067] mkdir("./14", 0777 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5250] <... mount resumed>) = 0 [pid 5068] close(4 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5250] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... close resumed>) = 0 [pid 5251] <... write resumed>) = 4194304 [pid 5250] <... openat resumed>) = 3 [pid 5068] rmdir("./13/file0" [pid 5067] <... openat resumed>) = 3 [pid 5253] <... write resumed>) = 4194304 [pid 5251] munmap(0x7f619b0de000, 4194304 [pid 5250] chdir("./file0" [pid 5068] <... rmdir resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5253] munmap(0x7f619b0de000, 4194304 [pid 5068] getdents64(3, [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5253] <... munmap resumed>) = 0 [pid 5251] <... munmap resumed>) = 0 [pid 5250] <... chdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3 [pid 5254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5253] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5251] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5250] ioctl(4, LOOP_CLR_FD [pid 5068] close(3 [pid 5067] <... close resumed>) = 0 [pid 5253] <... openat resumed>) = 4 [pid 5251] <... openat resumed>) = 4 [pid 5250] <... ioctl resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] ioctl(4, LOOP_SET_FD, 3 [pid 5251] ioctl(4, LOOP_SET_FD, 3 [pid 5250] close(4 [ 73.902418][ T5250] REISERFS (device loop5): Using r5 hash to sort names [ 73.933722][ T5250] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5068] rmdir("./13") = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5255 [pid 5068] mkdir("./14", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5256 ./strace-static-x86_64: Process 5255 attached [pid 5250] <... close resumed>) = 0 [pid 5250] creat("./bus", 000) = 4 [pid 5255] chdir("./14"./strace-static-x86_64: Process 5256 attached ) = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5250] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5256] chdir("./14" [pid 5255] <... prctl resumed>) = 0 [pid 5253] <... ioctl resumed>) = 0 [pid 5251] <... ioctl resumed>) = 0 [pid 5250] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5256] <... chdir resumed>) = 0 [pid 5255] setpgid(0, 0 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] <... setpgid resumed>) = 0 [pid 5253] close(3 [pid 5251] close(3 [pid 5250] <... mmap resumed>) = 0x20000000 [pid 5256] <... prctl resumed>) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] <... close resumed>) = 0 [pid 5251] <... close resumed>) = 0 [pid 5250] write(5, 0x200000c0, 34136651 [pid 5256] setpgid(0, 0 [pid 5255] <... openat resumed>) = 3 [pid 5253] mkdir("./file0", 0777 [pid 5251] mkdir("./file0", 0777 [pid 5256] <... setpgid resumed>) = 0 [pid 5255] write(3, "1000", 4 [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5255] <... write resumed>) = 4 [pid 5253] <... mkdir resumed>) = 0 [pid 5256] <... openat resumed>) = 3 [pid 5255] close(3 [pid 5251] <... mkdir resumed>) = 0 [pid 5253] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5256] write(3, "1000", 4 [pid 5255] <... close resumed>) = 0 [pid 5251] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5256] <... write resumed>) = 4 [pid 5255] symlink("/dev/binderfs", "./binderfs" [pid 5256] close(3 [pid 5255] <... symlink resumed>) = 0 [pid 5256] <... close resumed>) = 0 [pid 5255] memfd_create("syzkaller", 0 [pid 5256] symlink("/dev/binderfs", "./binderfs" [pid 5255] <... memfd_create resumed>) = 3 [pid 5256] <... symlink resumed>) = 0 [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5256] memfd_create("syzkaller", 0 [pid 5255] <... mmap resumed>) = 0x7f619b0de000 [pid 5256] <... memfd_create resumed>) = 3 [pid 5254] <... write resumed>) = 4194304 [pid 5250] <... write resumed>) = 3904 [ 73.961688][ T5253] loop3: detected capacity change from 0 to 8192 [ 73.969598][ T5251] loop4: detected capacity change from 0 to 8192 [pid 5256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5250] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5250] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5250] exit_group(0) = ? [pid 5250] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5254] munmap(0x7f619b0de000, 4194304 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./14/binderfs" [pid 5254] <... munmap resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5254] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5254] <... openat resumed>) = 4 [ 74.003987][ T5251] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.017627][ T5253] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.043001][ T5251] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5254] ioctl(4, LOOP_SET_FD, 3) = 0 [ 74.052699][ T5253] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 74.062407][ T5254] loop2: detected capacity change from 0 to 8192 [ 74.069267][ T5251] REISERFS (device loop4): using ordered data mode [ 74.076524][ T5251] reiserfs: using flush barriers [ 74.078699][ T5253] REISERFS (device loop3): using ordered data mode [pid 5254] close(3 [pid 5256] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5254] <... close resumed>) = 0 [pid 5255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5254] mkdir("./file0", 0777) = 0 [pid 5254] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5256] <... write resumed>) = 4194304 [pid 5072] <... umount2 resumed>) = 0 [pid 5256] munmap(0x7f619b0de000, 4194304 [pid 5072] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./14/file0") = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./14") = 0 [pid 5072] mkdir("./15", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5256] <... munmap resumed>) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5260 [pid 5256] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 74.088411][ T5251] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.118353][ T5254] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.130654][ T5253] reiserfs: using flush barriers [ 74.138655][ T5251] REISERFS (device loop4): checking transaction log (loop4) [pid 5256] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5256] close(3) = 0 [pid 5256] mkdir("./file0", 0777./strace-static-x86_64: Process 5260 attached ) = 0 [pid 5256] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5260] chdir("./15" [pid 5255] <... write resumed>) = 4194304 [pid 5260] <... chdir resumed>) = 0 [ 74.149680][ T5256] loop1: detected capacity change from 0 to 8192 [ 74.159239][ T5254] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 74.163352][ T5253] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.179106][ T5254] REISERFS (device loop2): using ordered data mode [pid 5255] munmap(0x7f619b0de000, 4194304 [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] <... munmap resumed>) = 0 [pid 5260] <... prctl resumed>) = 0 [pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5260] setpgid(0, 0 [pid 5255] <... openat resumed>) = 4 [ 74.192428][ T5256] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.203526][ T5254] reiserfs: using flush barriers [ 74.205940][ T5256] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 74.212696][ T5253] REISERFS (device loop3): checking transaction log (loop3) [ 74.222964][ T5254] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.227365][ T5256] REISERFS (device loop1): using ordered data mode [pid 5260] <... setpgid resumed>) = 0 [pid 5255] ioctl(4, LOOP_SET_FD, 3 [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5260] write(3, "1000", 4) = 4 [pid 5260] close(3) = 0 [pid 5260] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5260] memfd_create("syzkaller", 0) = 3 [pid 5260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5255] <... ioctl resumed>) = 0 [pid 5255] close(3) = 0 [pid 5255] mkdir("./file0", 0777) = 0 [ 74.244610][ T5255] loop0: detected capacity change from 0 to 8192 [ 74.249870][ T5256] reiserfs: using flush barriers [ 74.262149][ T5254] REISERFS (device loop2): checking transaction log (loop2) [ 74.287574][ T5256] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5255] mount("/dev/loop0", "./file0", "reiserfs", 0, "" [ 74.322865][ T5255] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.327682][ T5256] REISERFS (device loop1): checking transaction log (loop1) [ 74.343071][ T5254] REISERFS (device loop2): Using r5 hash to sort names [ 74.345417][ T5251] REISERFS (device loop4): Using r5 hash to sort names [pid 5260] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5254] <... mount resumed>) = 0 [pid 5254] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5254] chdir("./file0") = 0 [pid 5260] <... write resumed>) = 4194304 [pid 5254] ioctl(4, LOOP_CLR_FD [pid 5260] munmap(0x7f619b0de000, 4194304 [pid 5254] <... ioctl resumed>) = 0 [pid 5251] <... mount resumed>) = 0 [pid 5251] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5260] <... munmap resumed>) = 0 [pid 5254] close(4 [pid 5251] <... openat resumed>) = 3 [pid 5251] chdir("./file0") = 0 [pid 5251] ioctl(4, LOOP_CLR_FD) = 0 [pid 5251] close(4) = 0 [pid 5251] creat("./bus", 000) = 4 [pid 5251] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5251] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5254] <... close resumed>) = 0 [pid 5254] creat("./bus", 000) = 4 [pid 5254] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5251] <... open resumed>) = 5 [ 74.363416][ T5254] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 74.368441][ T5251] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 74.373523][ T5255] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 74.405025][ T5255] REISERFS (device loop0): using ordered data mode [ 74.412416][ T5253] REISERFS (device loop3): Using r5 hash to sort names [pid 5254] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5251] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5254] <... open resumed>) = 5 [pid 5260] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5254] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5251] <... mmap resumed>) = 0x20000000 [pid 5251] write(5, 0x200000c0, 34136651 [pid 5260] <... openat resumed>) = 4 [pid 5254] <... mmap resumed>) = 0x20000000 [pid 5254] write(5, 0x200000c0, 34136651 [pid 5260] ioctl(4, LOOP_SET_FD, 3 [pid 5253] <... mount resumed>) = 0 [pid 5251] <... write resumed>) = 3904 [pid 5251] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5251] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5251] exit_group(0) = ? [pid 5260] <... ioctl resumed>) = 0 [pid 5253] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5251] +++ exited with 0 +++ [pid 5260] close(3 [pid 5253] <... openat resumed>) = 3 [pid 5260] <... close resumed>) = 0 [pid 5253] chdir("./file0" [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5260] mkdir("./file0", 0777 [pid 5254] <... write resumed>) = 3904 [pid 5253] <... chdir resumed>) = 0 [pid 5071] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] <... mkdir resumed>) = 0 [pid 5254] ioctl(4, FS_IOC_GETVERSION [pid 5253] ioctl(4, LOOP_CLR_FD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5260] mount("/dev/loop5", "./file0", "reiserfs", 0, "" [pid 5254] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5253] <... ioctl resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5254] write(-1, 0x20000080, 296 [pid 5253] close(4 [pid 5071] <... openat resumed>) = 3 [pid 5254] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5253] <... close resumed>) = 0 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 74.433503][ T5255] reiserfs: using flush barriers [ 74.440387][ T5253] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 74.450299][ T5255] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.467772][ T5255] REISERFS (device loop0): checking transaction log (loop0) [ 74.476894][ T5260] loop5: detected capacity change from 0 to 8192 [pid 5071] unlink("./15/binderfs" [pid 5254] exit_group(0 [pid 5253] creat("./bus", 000 [pid 5254] <... exit_group resumed>) = ? [pid 5253] <... creat resumed>) = 4 [pid 5254] +++ exited with 0 +++ [pid 5253] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 5253] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5253] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5253] write(5, 0x200000c0, 34136651 [pid 5071] <... unlink resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- [pid 5071] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5253] <... write resumed>) = 3904 [pid 5253] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5069] <... openat resumed>) = 3 [pid 5253] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5069] fstat(3, [pid 5253] exit_group(0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5253] <... exit_group resumed>) = ? [pid 5069] getdents64(3, [pid 5253] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x555556ae7620 /* 4 entries */, 32768) = 112 [ 74.513811][ T5260] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.529691][ T5260] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 74.532086][ T5255] REISERFS (device loop0): Using r5 hash to sort names [ 74.539535][ T5260] REISERFS (device loop5): using ordered data mode [ 74.552850][ T5260] reiserfs: using flush barriers [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5069] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./14/binderfs", [pid 5070] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] unlink("./14/binderfs" [pid 5070] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... unlink resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5069] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./14/binderfs") = 0 [pid 5070] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5256] <... mount resumed>) = 0 [pid 5256] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5255] <... mount resumed>) = 0 [pid 5256] <... openat resumed>) = 3 [pid 5255] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5256] chdir("./file0" [pid 5255] <... openat resumed>) = 3 [pid 5256] <... chdir resumed>) = 0 [pid 5255] chdir("./file0" [pid 5256] ioctl(4, LOOP_CLR_FD [pid 5255] <... chdir resumed>) = 0 [pid 5256] <... ioctl resumed>) = 0 [pid 5255] ioctl(4, LOOP_CLR_FD [pid 5256] close(4 [pid 5255] <... ioctl resumed>) = 0 [pid 5256] <... close resumed>) = 0 [pid 5255] close(4 [pid 5256] creat("./bus", 000 [pid 5255] <... close resumed>) = 0 [pid 5256] <... creat resumed>) = 4 [pid 5255] creat("./bus", 000 [pid 5256] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5255] <... creat resumed>) = 4 [pid 5255] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5256] <... write resumed>) = 32 [pid 5256] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5255] <... write resumed>) = 32 [pid 5255] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5256] <... open resumed>) = 5 [pid 5255] <... open resumed>) = 5 [pid 5255] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5256] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5255] <... mmap resumed>) = 0x20000000 [pid 5255] write(5, 0x200000c0, 34136651 [pid 5256] <... mmap resumed>) = 0x20000000 [ 74.558008][ T5256] REISERFS (device loop1): Using r5 hash to sort names [ 74.565895][ T5256] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 74.575837][ T5260] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.576142][ T5255] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 74.601963][ T5260] REISERFS (device loop5): checking transaction log (loop5) [pid 5256] write(5, 0x200000c0, 34136651) = 3904 [pid 5255] <... write resumed>) = 3904 [pid 5256] ioctl(4, FS_IOC_GETVERSION [pid 5255] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5255] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5255] exit_group(0 [pid 5256] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5255] <... exit_group resumed>) = ? [pid 5255] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5256] write(-1, 0x20000080, 296 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5256] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5067] <... openat resumed>) = 3 [pid 5256] exit_group(0 [pid 5067] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5256] <... exit_group resumed>) = ? [pid 5067] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5256] +++ exited with 0 +++ [pid 5067] unlink("./14/binderfs" [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5067] <... unlink resumed>) = 0 [pid 5067] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./14/binderfs") = 0 [ 74.654361][ T5260] REISERFS (device loop5): Using r5 hash to sort names [ 74.661450][ T5260] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5068] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./15/file0") = 0 [pid 5071] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./15") = 0 [pid 5071] mkdir("./16", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5264 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./14/file0") = 0 [pid 5069] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./14") = 0 [pid 5069] mkdir("./15", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3./strace-static-x86_64: Process 5264 attached [pid 5264] chdir("./16") = 0 [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5264] setpgid(0, 0) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5264] write(3, "1000", 4) = 4 [pid 5264] close(3) = 0 [pid 5264] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5264] memfd_create("syzkaller", 0) = 3 [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5265 ./strace-static-x86_64: Process 5265 attached [pid 5265] chdir("./15") = 0 [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5265] setpgid(0, 0) = 0 [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5265] write(3, "1000", 4) = 4 [pid 5265] close(3) = 0 [pid 5265] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5265] memfd_create("syzkaller", 0) = 3 [pid 5265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5070] <... umount2 resumed>) = 0 [pid 5260] <... mount resumed>) = 0 [pid 5260] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5260] chdir("./file0") = 0 [pid 5260] ioctl(4, LOOP_CLR_FD) = 0 [pid 5260] close(4 [pid 5067] <... umount2 resumed>) = 0 [pid 5260] <... close resumed>) = 0 [pid 5260] creat("./bus", 000) = 4 [pid 5260] write(4, "\x00\x00\x00\x00\x18\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32 [pid 5070] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./14/file0", [pid 5260] <... write resumed>) = 32 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5260] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c [pid 5070] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5260] <... open resumed>) = 5 [pid 5260] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED, 5, 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./14/file0") = 0 [pid 5070] getdents64(3, 0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5260] <... mmap resumed>) = 0x20000000 [pid 5070] <... close resumed>) = 0 [pid 5260] write(5, 0x200000c0, 34136651 [pid 5070] rmdir("./14") = 0 [pid 5070] mkdir("./15", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5266 [pid 5068] <... umount2 resumed>) = 0 [pid 5260] <... write resumed>) = 3904 [pid 5260] ioctl(4, FS_IOC_GETVERSION./strace-static-x86_64: Process 5266 attached , 0) = -1 EFAULT (Bad address) [pid 5068] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5266] chdir("./15" [pid 5260] write(-1, 0x20000080, 296) = -1 EBADF (Bad file descriptor) [pid 5260] exit_group(0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5260] <... exit_group resumed>) = ? [pid 5266] <... chdir resumed>) = 0 [pid 5260] +++ exited with 0 +++ [pid 5068] lstat("./14/file0", [pid 5067] lstat("./14/file0", [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5067] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5266] <... prctl resumed>) = 0 [pid 5072] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] fstat(3, [pid 5068] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556ae7620 /* 4 entries */, 32768) = 112 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5266] setpgid(0, 0 [pid 5072] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5266] <... setpgid resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] lstat("./15/binderfs", [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5067] <... openat resumed>) = 4 [pid 5072] unlink("./15/binderfs") = 0 [pid 5072] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5266] <... openat resumed>) = 3 [pid 5264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5068] fstat(4, [pid 5067] fstat(4, [pid 5266] write(3, "1000", 4 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5266] <... write resumed>) = 4 [pid 5067] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5266] close(3 [pid 5068] getdents64(4, [pid 5067] getdents64(4, [pid 5266] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5266] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... getdents64 resumed>0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5266] <... symlink resumed>) = 0 [pid 5068] getdents64(4, [pid 5067] getdents64(4, [pid 5266] memfd_create("syzkaller", 0 [pid 5068] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5067] <... getdents64 resumed>0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5266] <... memfd_create resumed>) = 3 [pid 5068] close(4 [pid 5067] close(4 [pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5068] <... close resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5068] rmdir("./14/file0" [pid 5067] rmdir("./14/file0") = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] getdents64(3, [pid 5068] getdents64(3, [pid 5067] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5067] close(3 [pid 5068] close(3 [pid 5067] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] rmdir("./14" [pid 5068] rmdir("./14") = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5068] mkdir("./15", 0777) = 0 [pid 5067] mkdir("./15", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] <... openat resumed>) = 3 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5068] close(3) = 0 [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] close(3) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556ae65d0) = 5267 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5268 ./strace-static-x86_64: Process 5268 attached [pid 5268] chdir("./15" [pid 5265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 5267 attached [pid 5268] <... chdir resumed>) = 0 [pid 5268] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5267] chdir("./15" [pid 5268] <... prctl resumed>) = 0 [pid 5267] <... chdir resumed>) = 0 [pid 5268] setpgid(0, 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5268] <... setpgid resumed>) = 0 [pid 5267] <... prctl resumed>) = 0 [pid 5268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5267] setpgid(0, 0 [pid 5268] <... openat resumed>) = 3 [pid 5267] <... setpgid resumed>) = 0 [pid 5266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5264] <... write resumed>) = 4194304 [pid 5268] write(3, "1000", 4 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5264] munmap(0x7f619b0de000, 4194304) = 0 [pid 5268] <... write resumed>) = 4 [pid 5268] close(3 [pid 5267] <... openat resumed>) = 3 [pid 5264] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5268] <... close resumed>) = 0 [pid 5267] write(3, "1000", 4 [pid 5268] symlink("/dev/binderfs", "./binderfs" [pid 5264] <... openat resumed>) = 4 [pid 5267] <... write resumed>) = 4 [pid 5268] <... symlink resumed>) = 0 [pid 5267] close(3 [pid 5264] ioctl(4, LOOP_SET_FD, 3 [pid 5268] memfd_create("syzkaller", 0 [pid 5267] <... close resumed>) = 0 [pid 5268] <... memfd_create resumed>) = 3 [pid 5267] symlink("/dev/binderfs", "./binderfs" [pid 5264] <... ioctl resumed>) = 0 [pid 5268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5267] <... symlink resumed>) = 0 [pid 5268] <... mmap resumed>) = 0x7f619b0de000 [pid 5264] close(3 [pid 5267] memfd_create("syzkaller", 0 [pid 5264] <... close resumed>) = 0 [pid 5264] mkdir("./file0", 0777 [pid 5267] <... memfd_create resumed>) = 3 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5264] <... mkdir resumed>) = 0 [pid 5267] <... mmap resumed>) = 0x7f619b0de000 [pid 5264] mount("/dev/loop4", "./file0", "reiserfs", 0, "" [pid 5265] <... write resumed>) = 4194304 [pid 5265] munmap(0x7f619b0de000, 4194304) = 0 [pid 5265] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5265] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... umount2 resumed>) = 0 [ 74.945888][ T5264] loop4: detected capacity change from 0 to 8192 [ 74.982843][ T5265] loop2: detected capacity change from 0 to 8192 [pid 5072] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556aef660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556aef660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./15/file0") = 0 [pid 5072] getdents64(3, [pid 5265] <... ioctl resumed>) = 0 [pid 5265] close(3 [pid 5072] <... getdents64 resumed>0x555556ae7620 /* 0 entries */, 32768) = 0 [pid 5072] close(3 [pid 5265] <... close resumed>) = 0 [pid 5265] mkdir("./file0", 0777 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./15" [pid 5265] <... mkdir resumed>) = 0 [pid 5265] mount("/dev/loop2", "./file0", "reiserfs", 0, "" [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./16", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5266] <... write resumed>) = 4194304 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5072] <... close resumed>) = 0 [pid 5266] munmap(0x7f619b0de000, 4194304 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ae65d0) = 5271 [pid 5266] <... munmap resumed>) = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5266] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5271 attached [pid 5271] chdir("./16") = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5271] setpgid(0, 0) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5271] write(3, "1000", 4) = 4 [ 74.990392][ T5264] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.027130][ T5266] loop3: detected capacity change from 0 to 8192 [ 75.033727][ T5264] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5271] close(3) = 0 [pid 5271] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5271] memfd_create("syzkaller", 0) = 3 [pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f619b0de000 [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5266] <... ioctl resumed>) = 0 [ 75.034925][ T5265] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.060122][ T5264] REISERFS (device loop4): using ordered data mode [ 75.067616][ T5264] reiserfs: using flush barriers [ 75.075035][ T5264] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5266] close(3) = 0 [pid 5266] mkdir("./file0", 0777) = 0 [pid 5266] mount("/dev/loop3", "./file0", "reiserfs", 0, "" [pid 5267] <... write resumed>) = 4194304 [pid 5268] <... write resumed>) = 4194304 [pid 5268] munmap(0x7f619b0de000, 4194304) = 0 [pid 5268] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5267] munmap(0x7f619b0de000, 4194304 [pid 5268] <... openat resumed>) = 4 [pid 5267] <... munmap resumed>) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 75.084703][ T5265] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 75.095181][ T5264] REISERFS (device loop4): checking transaction log (loop4) [ 75.116001][ T5266] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.125810][ T5265] REISERFS (device loop2): using ordered data mode [ 75.136356][ T5265] reiserfs: using flush barriers [pid 5268] ioctl(4, LOOP_SET_FD, 3 [pid 5267] <... openat resumed>) = 4 [pid 5267] ioctl(4, LOOP_SET_FD, 3) = 0 [ 75.137076][ T5268] loop0: detected capacity change from 0 to 8192 [ 75.142327][ T5266] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 75.149409][ T5265] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 75.157014][ T5266] REISERFS (device loop3): using ordered data mode [ 75.179762][ T5267] loop1: detected capacity change from 0 to 8192 [ 75.186314][ T5266] reiserfs: using flush barriers [pid 5267] close(3 [pid 5268] <... ioctl resumed>) = 0 [pid 5267] <... close resumed>) = 0 [pid 5268] close(3 [pid 5267] mkdir("./file0", 0777 [pid 5268] <... close resumed>) = 0 [pid 5267] <... mkdir resumed>) = 0 [pid 5268] mkdir("./file0", 0777 [pid 5267] mount("/dev/loop1", "./file0", "reiserfs", 0, "" [pid 5268] <... mkdir resumed>) = 0