./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3007361185 <...> Warning: Permanently added '10.128.1.106' (ED25519) to the list of known hosts. execve("./syz-executor3007361185", ["./syz-executor3007361185"], 0x7ffe961befd0 /* 10 vars */) = 0 brk(NULL) = 0x5555947bd000 brk(0x5555947bdd00) = 0x5555947bdd00 arch_prctl(ARCH_SET_FS, 0x5555947bd380) = 0 set_tid_address(0x5555947bd650) = 5817 set_robust_list(0x5555947bd660, 24) = 0 rseq(0x5555947bdca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3007361185", 4096) = 28 getrandom("\x08\xa6\xe5\xda\x64\xde\xe5\xf9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555947bdd00 brk(0x5555947ded00) = 0x5555947ded00 brk(0x5555947df000) = 0x5555947df000 mprotect(0x7f9774854000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5818 attached <unfinished ...> [pid 5818] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5817] <... clone resumed>, child_tidptr=0x5555947bd650) = 5818 [pid 5818] <... set_robust_list resumed>) = 0 [pid 5818] mkdir("./syzkaller.vw9sXC", 0700 <unfinished ...> [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5819 attached , child_tidptr=0x5555947bd650) = 5819 [pid 5818] <... mkdir resumed>) = 0 [pid 5819] set_robust_list(0x5555947bd660, 24) = 0 [pid 5818] chmod("./syzkaller.vw9sXC", 0777 <unfinished ...> [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5819] mkdir("./syzkaller.RwUHxm", 0700 <unfinished ...> [pid 5818] <... chmod resumed>) = 0 [pid 5818] chdir("./syzkaller.vw9sXC"./strace-static-x86_64: Process 5820 attached <unfinished ...> [pid 5819] <... mkdir resumed>) = 0 [pid 5817] <... clone resumed>, child_tidptr=0x5555947bd650) = 5820 [pid 5820] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5818] <... chdir resumed>) = 0 [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] <... set_robust_list resumed>) = 0 [pid 5818] mkdir("./0", 0777 <unfinished ...> [pid 5819] chmod("./syzkaller.RwUHxm", 0777 <unfinished ...> [pid 5820] mkdir("./syzkaller.1PlVXd", 0700 <unfinished ...> [pid 5819] <... chmod resumed>) = 0 [pid 5819] chdir("./syzkaller.RwUHxm" <unfinished ...> [pid 5818] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5821 attached [pid 5819] <... chdir resumed>) = 0 [pid 5817] <... clone resumed>, child_tidptr=0x5555947bd650) = 5821 [pid 5821] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5819] mkdir("./0", 0777 <unfinished ...> [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5821] <... set_robust_list resumed>) = 0 [pid 5820] <... mkdir resumed>) = 0 [pid 5819] <... mkdir resumed>) = 0 [pid 5818] <... openat resumed>) = 3 [pid 5821] mkdir("./syzkaller.GFAfSP", 0700 <unfinished ...> [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5822 attached <unfinished ...> [pid 5821] <... mkdir resumed>) = 0 [pid 5820] chmod("./syzkaller.1PlVXd", 0777 <unfinished ...> [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5817] <... clone resumed>, child_tidptr=0x5555947bd650) = 5822 [pid 5822] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5821] chmod("./syzkaller.GFAfSP", 0777 <unfinished ...> [pid 5819] <... openat resumed>) = 3 [pid 5822] <... set_robust_list resumed>) = 0 [pid 5822] mkdir("./syzkaller.dCFQde", 0700 <unfinished ...> [pid 5821] <... chmod resumed>) = 0 [pid 5820] <... chmod resumed>) = 0 [pid 5819] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5818] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5821] chdir("./syzkaller.GFAfSP" <unfinished ...> [pid 5819] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5821] <... chdir resumed>) = 0 [pid 5820] chdir("./syzkaller.1PlVXd" <unfinished ...> [pid 5818] close(3 <unfinished ...> [pid 5822] <... mkdir resumed>) = 0 [pid 5820] <... chdir resumed>) = 0 [pid 5822] chmod("./syzkaller.dCFQde", 0777 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5821] mkdir("./0", 0777 <unfinished ...> [pid 5820] mkdir("./0", 0777 <unfinished ...> [pid 5819] close(3 <unfinished ...> [pid 5822] <... chmod resumed>) = 0 [pid 5821] <... mkdir resumed>) = 0 [pid 5820] <... mkdir resumed>) = 0 [pid 5819] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5825 attached ./strace-static-x86_64: Process 5824 attached <unfinished ...> [pid 5822] chdir("./syzkaller.dCFQde" <unfinished ...> [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5825 [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5824 [pid 5825] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5822] <... chdir resumed>) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5825] <... set_robust_list resumed>) = 0 [pid 5822] mkdir("./0", 0777 <unfinished ...> [pid 5821] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5825] chdir("./0" <unfinished ...> [pid 5824] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5822] <... mkdir resumed>) = 0 [pid 5821] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5820] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5825] <... chdir resumed>) = 0 [pid 5824] <... set_robust_list resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5821] close(3 <unfinished ...> [pid 5820] close(3 <unfinished ...> [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5824] chdir("./0" <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5825] setpgid(0, 0 <unfinished ...> [pid 5824] <... chdir resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5821] <... close resumed>) = 0 ./strace-static-x86_64: Process 5826 attached [pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5826] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5824] setpgid(0, 0 <unfinished ...> [pid 5826] <... set_robust_list resumed>) = 0 [pid 5824] <... setpgid resumed>) = 0 [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5826 [pid 5826] chdir("./0" <unfinished ...> [pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5826] <... chdir resumed>) = 0 [pid 5824] <... openat resumed>) = 3 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5826] setpgid(0, 0) = 0 [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5824] write(3, "1000", 4) = 4 [pid 5826] <... openat resumed>) = 3 [pid 5825] <... setpgid resumed>) = 0 [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5826] write(3, "1000", 4 <unfinished ...> [pid 5824] close(3 <unfinished ...> [pid 5822] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5826] <... write resumed>) = 4 [pid 5824] <... close resumed>) = 0 [pid 5822] close(3./strace-static-x86_64: Process 5827 attached <unfinished ...> [pid 5826] close(3 <unfinished ...> [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5827 [pid 5826] <... close resumed>) = 0 [pid 5825] <... openat resumed>) = 3 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5825] write(3, "1000", 4 <unfinished ...> [pid 5824] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5826] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5825] <... write resumed>) = 4 [pid 5824] <... symlink resumed>) = 0 [pid 5825] close(3 <unfinished ...> [pid 5827] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5826] <... symlink resumed>) = 0 [pid 5825] <... close resumed>) = 0 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5828 ./strace-static-x86_64: Process 5828 attached [pid 5826] write(1, "executing program\n", 18executing program ) = 18 executing program [pid 5827] <... set_robust_list resumed>) = 0 [pid 5826] memfd_create("syzkaller", 0 <unfinished ...> [pid 5825] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5828] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5827] chdir("./0" <unfinished ...> [pid 5824] write(1, "executing program\n", 18 <unfinished ...> [pid 5828] <... set_robust_list resumed>) = 0 [pid 5826] <... memfd_create resumed>) = 3 [pid 5824] <... write resumed>) = 18 [pid 5825] <... symlink resumed>) = 0 [pid 5827] <... chdir resumed>) = 0 [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5824] memfd_create("syzkaller", 0 <unfinished ...> [pid 5828] chdir("./0") = 0 [pid 5826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5828] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5826] <... mmap resumed>) = 0x7f976c200000 executing program [pid 5824] <... memfd_create resumed>) = 3 [pid 5828] <... prctl resumed>) = 0 [pid 5827] <... prctl resumed>) = 0 [pid 5825] write(1, "executing program\n", 18 <unfinished ...> [pid 5828] setpgid(0, 0 <unfinished ...> [pid 5827] setpgid(0, 0 <unfinished ...> [pid 5825] <... write resumed>) = 18 [pid 5828] <... setpgid resumed>) = 0 [pid 5824] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5825] memfd_create("syzkaller", 0 <unfinished ...> [pid 5824] <... mmap resumed>) = 0x7f976c200000 [pid 5827] <... setpgid resumed>) = 0 [pid 5828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5825] <... memfd_create resumed>) = 3 [pid 5828] <... openat resumed>) = 3 [pid 5828] write(3, "1000", 4) = 4 [pid 5828] close(3) = 0 [pid 5827] <... openat resumed>) = 3 [pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5827] write(3, "1000", 4executing program ) = 4 [pid 5825] <... mmap resumed>) = 0x7f976c200000 [pid 5828] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5828] write(1, "executing program\n", 18) = 18 [pid 5828] memfd_create("syzkaller", 0) = 3 [pid 5828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5827] close(3) = 0 [pid 5827] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5827] write(1, "executing program\n", 18executing program ) = 18 [pid 5827] memfd_create("syzkaller", 0) = 3 [pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5825] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5827] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5826] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5828] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5824] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5825] <... write resumed>) = 16777216 [pid 5825] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5827] <... write resumed>) = 16777216 [pid 5825] <... munmap resumed>) = 0 [pid 5827] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5825] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5825] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5825] close(3) = 0 [pid 5825] close(4) = 0 [pid 5824] <... write resumed>) = 16777216 [pid 5828] <... write resumed>) = 16777216 [pid 5827] <... munmap resumed>) = 0 [pid 5826] <... write resumed>) = 16777216 [pid 5825] mkdir("./file0", 0777 <unfinished ...> [pid 5828] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5827] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5826] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5825] <... mkdir resumed>) = 0 [pid 5824] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5827] <... openat resumed>) = 4 [pid 5827] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5828] <... munmap resumed>) = 0 [pid 5827] <... ioctl resumed>) = 0 [pid 5825] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5827] close(3 <unfinished ...> [pid 5828] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5827] <... close resumed>) = 0 [pid 5828] <... openat resumed>) = 4 [pid 5827] close(4) = 0 [pid 5827] mkdir("./file0", 0777 <unfinished ...> [pid 5828] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5824] <... munmap resumed>) = 0 [pid 5827] <... mkdir resumed>) = 0 [ 64.333860][ T5825] loop1: detected capacity change from 0 to 32768 [ 64.373881][ T5827] loop3: detected capacity change from 0 to 32768 [pid 5826] <... munmap resumed>) = 0 [pid 5828] <... ioctl resumed>) = 0 [pid 5827] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5828] close(3 <unfinished ...> [pid 5826] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5825] <... mount resumed>) = 0 [pid 5824] <... openat resumed>) = 4 [pid 5828] <... close resumed>) = 0 [pid 5828] close(4 <unfinished ...> [pid 5824] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5825] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5828] <... close resumed>) = 0 [pid 5826] <... openat resumed>) = 4 [pid 5828] mkdir("./file0", 0777 <unfinished ...> [pid 5825] <... openat resumed>) = 3 [pid 5825] chdir("./file0") = 0 [pid 5828] <... mkdir resumed>) = 0 [pid 5826] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5825] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5828] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5827] <... mount resumed>) = 0 [pid 5826] <... ioctl resumed>) = 0 [pid 5825] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5827] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5825] exit_group(0 <unfinished ...> [pid 5827] <... openat resumed>) = 3 [pid 5825] <... exit_group resumed>) = ? [pid 5825] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5825, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- [pid 5827] chdir("./file0") = 0 [pid 5824] <... ioctl resumed>) = 0 [pid 5824] close(3) = 0 [pid 5824] close(4) = 0 [pid 5824] mkdir("./file0", 0777 <unfinished ...> [pid 5827] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5824] <... mkdir resumed>) = 0 [pid 5824] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5827] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5827] exit_group(0) = ? [pid 5819] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5828] <... mount resumed>) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5828] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5819] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5828] <... openat resumed>) = 3 [pid 5827] +++ exited with 0 +++ [pid 5824] <... mount resumed>) = 0 [pid 5819] <... openat resumed>) = 3 [pid 5824] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- [pid 5819] newfstatat(3, "", <unfinished ...> [pid 5824] <... openat resumed>) = 3 [pid 5828] chdir("./file0" <unfinished ...> [pid 5824] chdir("./file0" <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5828] <... chdir resumed>) = 0 [pid 5824] <... chdir resumed>) = 0 [pid 5821] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] getdents64(3, <unfinished ...> [pid 5828] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 64.397012][ T5828] loop4: detected capacity change from 0 to 32768 [ 64.419223][ T5824] loop0: detected capacity change from 0 to 32768 [ 64.432707][ T5826] loop2: detected capacity change from 0 to 32768 [pid 5828] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5824] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5821] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5828] exit_group(0 <unfinished ...> [pid 5826] close(3 <unfinished ...> [pid 5824] exit_group(0 <unfinished ...> [pid 5821] <... openat resumed>) = 3 [pid 5828] <... exit_group resumed>) = ? [pid 5824] <... exit_group resumed>) = ? [pid 5821] newfstatat(3, "", <unfinished ...> [pid 5819] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5828] +++ exited with 0 +++ [pid 5826] <... close resumed>) = 0 [pid 5824] +++ exited with 0 +++ [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] close(4 <unfinished ...> [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5828, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=22 /* 0.22 s */} --- [pid 5821] getdents64(3, <unfinished ...> [pid 5819] newfstatat(AT_FDCWD, "./0/binderfs", <unfinished ...> [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5824, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=20 /* 0.20 s */} --- [pid 5826] <... close resumed>) = 0 [pid 5822] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5826] mkdir("./file0", 0777 <unfinished ...> [pid 5822] <... restart_syscall resumed>) = 0 [pid 5821] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] <... restart_syscall resumed>) = 0 [pid 5826] <... mkdir resumed>) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] unlink("./0/binderfs" <unfinished ...> [pid 5821] newfstatat(AT_FDCWD, "./0/binderfs", <unfinished ...> [pid 5822] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] <... unlink resumed>) = 0 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] unlink("./0/binderfs" <unfinished ...> [pid 5819] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5826] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5822] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5821] <... unlink resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5826] <... mount resumed>) = 0 [pid 5822] <... openat resumed>) = 3 [pid 5818] <... openat resumed>) = 3 [pid 5826] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5822] newfstatat(3, "", <unfinished ...> [pid 5818] newfstatat(3, "", <unfinished ...> [pid 5826] <... openat resumed>) = 3 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] chdir("./file0" <unfinished ...> [pid 5822] getdents64(3, <unfinished ...> [pid 5818] getdents64(3, <unfinished ...> [pid 5826] <... chdir resumed>) = 0 [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5826] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5822] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5826] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] exit_group(0 <unfinished ...> [pid 5822] newfstatat(AT_FDCWD, "./0/binderfs", <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./0/binderfs", <unfinished ...> [pid 5826] <... exit_group resumed>) = ? [pid 5822] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] +++ exited with 0 +++ [pid 5822] unlink("./0/binderfs" <unfinished ...> [pid 5818] unlink("./0/binderfs" <unfinished ...> [pid 5822] <... unlink resumed>) = 0 [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5826, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=23 /* 0.23 s */} --- [pid 5818] <... unlink resumed>) = 0 [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5818] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... restart_syscall resumed>) = 0 [pid 5822] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5819] <... umount2 resumed>) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] <... umount2 resumed>) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] <... umount2 resumed>) = 0 [pid 5821] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./0/file0", <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./0/binderfs", <unfinished ...> [pid 5819] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5822] newfstatat(AT_FDCWD, "./0/file0", <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] unlink("./0/binderfs" <unfinished ...> [pid 5819] newfstatat(AT_FDCWD, "./0/file0", <unfinished ...> [pid 5818] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... unlink resumed>) = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./0/file0", <unfinished ...> [pid 5822] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5821] <... openat resumed>) = 4 [pid 5820] <... umount2 resumed>) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] <... openat resumed>) = 4 [pid 5821] newfstatat(4, "", <unfinished ...> [pid 5819] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5818] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] <... openat resumed>) = 4 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, <unfinished ...> [pid 5820] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] newfstatat(4, "", <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] getdents64(4, <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./0/file0", <unfinished ...> [pid 5819] getdents64(4, <unfinished ...> [pid 5818] <... openat resumed>) = 4 [pid 5822] getdents64(4, <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] newfstatat(4, "", <unfinished ...> [pid 5822] close(4 <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] <... close resumed>) = 0 [pid 5820] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] rmdir("./0/file0" <unfinished ...> [pid 5820] <... openat resumed>) = 4 [pid 5818] getdents64(4, <unfinished ...> [pid 5822] <... rmdir resumed>) = 0 [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] close(4) = 0 [pid 5820] newfstatat(4, "", <unfinished ...> [pid 5819] getdents64(4, <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] rmdir("./0/file0" <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] close(4 <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5818] getdents64(4, <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] getdents64(4, <unfinished ...> [pid 5818] close(4 <unfinished ...> [pid 5821] <... rmdir resumed>) = 0 [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] <... close resumed>) = 0 [pid 5822] getdents64(3, <unfinished ...> [pid 5820] close(4 <unfinished ...> [pid 5818] rmdir("./0/file0" <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] <... close resumed>) = 0 [pid 5819] <... close resumed>) = 0 [pid 5818] <... rmdir resumed>) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5820] rmdir("./0/file0" <unfinished ...> [pid 5819] rmdir("./0/file0" <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3 <unfinished ...> [pid 5820] <... rmdir resumed>) = 0 [pid 5819] <... rmdir resumed>) = 0 [pid 5821] close(3 <unfinished ...> [pid 5819] getdents64(3, <unfinished ...> [pid 5818] getdents64(3, <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] rmdir("./0" <unfinished ...> [pid 5819] close(3 <unfinished ...> [pid 5821] <... rmdir resumed>) = 0 [pid 5819] <... close resumed>) = 0 [pid 5819] rmdir("./0") = 0 [pid 5822] <... close resumed>) = 0 [pid 5821] mkdir("./1", 0777 <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] rmdir("./0" <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3 <unfinished ...> [pid 5822] <... rmdir resumed>) = 0 [pid 5821] <... mkdir resumed>) = 0 [pid 5820] close(3 <unfinished ...> [pid 5819] mkdir("./1", 0777 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5822] mkdir("./1", 0777 <unfinished ...> [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5818] rmdir("./0" <unfinished ...> [pid 5820] rmdir("./0" <unfinished ...> [pid 5819] <... mkdir resumed>) = 0 [pid 5818] <... rmdir resumed>) = 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5820] <... rmdir resumed>) = 0 [pid 5818] mkdir("./1", 0777 <unfinished ...> [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5821] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5820] mkdir("./1", 0777 <unfinished ...> [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5821] <... ioctl resumed>) = 0 [pid 5819] <... openat resumed>) = 3 [pid 5818] <... mkdir resumed>) = 0 [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5821] close(3 <unfinished ...> [pid 5819] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5820] <... mkdir resumed>) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5818] <... ioctl resumed>) = 0 [pid 5818] close(3 <unfinished ...> [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5822] <... ioctl resumed>) = 0 [pid 5820] <... ioctl resumed>) = 0 [pid 5819] <... ioctl resumed>) = 0 [pid 5820] close(3 <unfinished ...> [pid 5822] close(3 <unfinished ...> [pid 5819] close(3 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5832 ./strace-static-x86_64: Process 5832 attached [pid 5832] set_robust_list(0x5555947bd660, 24) = 0 [pid 5832] chdir("./1") = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5832] setpgid(0, 0) = 0 [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1000", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5832] write(1, "executing program\n", 18) = 18 [pid 5832] memfd_create("syzkaller", 0) = 3 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5819] <... close resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached , child_tidptr=0x5555947bd650) = 5833 [pid 5833] set_robust_list(0x5555947bd660, 24) = 0 [pid 5833] chdir("./1") = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] setpgid(0, 0) = 0 [pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5821] <... close resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5833] write(3, "1000", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5833] write(1, "executing program\n", 18 <unfinished ...> [pid 5820] <... close resumed>) = 0 executing program [pid 5833] <... write resumed>) = 18 [pid 5833] memfd_create("syzkaller", 0) = 3 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5836 attached ./strace-static-x86_64: Process 5835 attached , child_tidptr=0x5555947bd650) = 5835 ./strace-static-x86_64: Process 5837 attached [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5836 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5837 [pid 5836] set_robust_list(0x5555947bd660, 24) = 0 [pid 5837] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5836] chdir("./1" <unfinished ...> [pid 5837] <... set_robust_list resumed>) = 0 [pid 5836] <... chdir resumed>) = 0 [pid 5835] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5837] chdir("./1" <unfinished ...> [pid 5835] <... set_robust_list resumed>) = 0 [pid 5837] <... chdir resumed>) = 0 [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5835] chdir("./1" <unfinished ...> [pid 5836] <... prctl resumed>) = 0 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5836] setpgid(0, 0 <unfinished ...> [pid 5835] <... chdir resumed>) = 0 [pid 5837] <... prctl resumed>) = 0 [pid 5836] <... setpgid resumed>) = 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5837] setpgid(0, 0 <unfinished ...> [pid 5835] <... prctl resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5837] <... setpgid resumed>) = 0 [pid 5835] setpgid(0, 0 <unfinished ...> [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5836] <... openat resumed>) = 3 [pid 5835] <... setpgid resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5836] write(3, "1000", 4 <unfinished ...> [pid 5837] <... openat resumed>) = 3 [pid 5836] <... write resumed>) = 4 [pid 5835] write(3, "1000", 4 <unfinished ...> [pid 5836] close(3) = 0 [pid 5835] <... write resumed>) = 4 [pid 5836] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5835] close(3) = 0 [pid 5836] <... symlink resumed>) = 0 [pid 5835] symlink("/dev/binderfs", "./binderfs" <unfinished ...> executing program executing program [pid 5836] write(1, "executing program\n", 18) = 18 [pid 5835] <... symlink resumed>) = 0 [pid 5835] write(1, "executing program\n", 18) = 18 [pid 5836] memfd_create("syzkaller", 0 <unfinished ...> [pid 5835] memfd_create("syzkaller", 0) = 3 [pid 5837] write(3, "1000", 4 <unfinished ...> [pid 5836] <... memfd_create resumed>) = 3 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5835] <... mmap resumed>) = 0x7f976c200000 [pid 5837] <... write resumed>) = 4 executing program [pid 5837] close(3) = 0 [pid 5837] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5837] write(1, "executing program\n", 18) = 18 [pid 5837] memfd_create("syzkaller", 0) = 3 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5832] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5836] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5832] <... write resumed>) = 16777216 [pid 5832] munmap(0x7f976c200000, 138412032) = 0 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5832] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5832] close(3) = 0 [pid 5832] close(4) = 0 [pid 5832] mkdir("./file0", 0777) = 0 [pid 5832] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5832] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5832] chdir("./file0") = 0 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5832] exit_group(0) = ? [pid 5832] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=23 /* 0.23 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5818] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./1/binderfs") = 0 [ 65.531273][ T5832] loop0: detected capacity change from 0 to 32768 [pid 5818] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5836] <... write resumed>) = 16777216 [pid 5818] <... umount2 resumed>) = 0 [pid 5818] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./1/file0", <unfinished ...> [pid 5836] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./1/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./1") = 0 [pid 5818] mkdir("./2", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5838 [pid 5836] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5838 attached [pid 5838] set_robust_list(0x5555947bd660, 24) = 0 [pid 5838] chdir("./2") = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] setpgid(0, 0) = 0 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5836] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5838] write(3, "1000", 4) = 4 [pid 5838] close(3 <unfinished ...> [pid 5836] ioctl(4, LOOP_SET_FD, 3executing program <unfinished ...> [pid 5838] <... close resumed>) = 0 [pid 5838] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5838] write(1, "executing program\n", 18) = 18 [pid 5838] memfd_create("syzkaller", 0) = 3 [pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5833] <... write resumed>) = 16777216 [pid 5836] <... ioctl resumed>) = 0 [pid 5833] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5836] close(3) = 0 [pid 5836] close(4) = 0 [pid 5836] mkdir("./file0", 0777 <unfinished ...> [pid 5833] <... munmap resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5833] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5836] <... mkdir resumed>) = 0 [ 65.656357][ T5836] loop4: detected capacity change from 0 to 32768 [pid 5836] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5836] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5835] <... write resumed>) = 16777216 [pid 5836] <... openat resumed>) = 3 [pid 5835] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5836] chdir("./file0") = 0 [pid 5837] <... write resumed>) = 16777216 [pid 5836] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5833] <... ioctl resumed>) = 0 [pid 5837] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5836] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] close(3 <unfinished ...> [pid 5836] exit_group(0 <unfinished ...> [pid 5835] <... munmap resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5836] <... exit_group resumed>) = ? [pid 5833] close(4) = 0 [pid 5833] mkdir("./file0", 0777) = 0 [pid 5833] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5836] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=17 /* 0.17 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./1/binderfs") = 0 [pid 5822] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5833] <... mount resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5833] chdir("./file0") = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5833] exit_group(0) = ? [ 65.736977][ T5833] loop1: detected capacity change from 0 to 32768 [pid 5837] <... munmap resumed>) = 0 [pid 5833] +++ exited with 0 +++ [pid 5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5835] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5822] <... umount2 resumed>) = 0 [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=19 /* 0.19 s */} --- [pid 5837] <... openat resumed>) = 4 [pid 5822] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5837] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5835] <... openat resumed>) = 4 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... restart_syscall resumed>) = 0 [pid 5835] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5822] newfstatat(AT_FDCWD, "./1/file0", <unfinished ...> [pid 5819] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... openat resumed>) = 3 [pid 5822] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5819] newfstatat(3, "", <unfinished ...> [pid 5822] <... openat resumed>) = 4 [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5819] getdents64(3, <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] getdents64(4, <unfinished ...> [pid 5819] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] getdents64(4, <unfinished ...> [pid 5819] newfstatat(AT_FDCWD, "./1/binderfs", <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] close(4 <unfinished ...> [pid 5819] unlink("./1/binderfs" <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5819] <... unlink resumed>) = 0 [pid 5822] rmdir("./1/file0" <unfinished ...> [pid 5819] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... rmdir resumed>) = 0 [pid 5835] <... ioctl resumed>) = 0 [pid 5822] getdents64(3, <unfinished ...> [pid 5819] <... umount2 resumed>) = 0 [pid 5819] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./1/file0", <unfinished ...> [pid 5835] close(3 <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... ioctl resumed>) = 0 [pid 5822] close(3 <unfinished ...> [pid 5819] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] <... close resumed>) = 0 [pid 5835] close(4 <unfinished ...> [pid 5819] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5835] <... close resumed>) = 0 [pid 5822] <... close resumed>) = 0 [pid 5819] <... openat resumed>) = 4 [pid 5822] rmdir("./1" <unfinished ...> [pid 5819] newfstatat(4, "", <unfinished ...> [pid 5822] <... rmdir resumed>) = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5837] close(3 <unfinished ...> [pid 5819] getdents64(4, <unfinished ...> [pid 5837] <... close resumed>) = 0 [pid 5822] mkdir("./2", 0777 <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] <... mkdir resumed>) = 0 [pid 5819] getdents64(4, <unfinished ...> [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5837] close(4 <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5819] close(4 <unfinished ...> [pid 5837] <... close resumed>) = 0 [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5837] mkdir("./file0", 0777 <unfinished ...> [pid 5822] <... ioctl resumed>) = 0 [pid 5819] rmdir("./1/file0" <unfinished ...> [pid 5837] <... mkdir resumed>) = 0 [pid 5819] <... rmdir resumed>) = 0 [pid 5819] getdents64(3, <unfinished ...> [pid 5835] mkdir("./file0", 0777 <unfinished ...> [pid 5822] close(3 <unfinished ...> [pid 5837] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./1") = 0 [pid 5819] mkdir("./2", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] <... mount resumed>) = 0 [pid 5819] close(3) = 0 [pid 5837] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5839 attached <unfinished ...> [pid 5837] <... openat resumed>) = 3 [pid 5835] <... mkdir resumed>) = 0 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5839 [pid 5837] chdir("./file0") = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5839] set_robust_list(0x5555947bd660, 24) = 0 [pid 5837] exit_group(0 <unfinished ...> [pid 5839] chdir("./2" <unfinished ...> [pid 5837] <... exit_group resumed>) = ? [ 65.820072][ T5837] loop3: detected capacity change from 0 to 32768 [ 65.831758][ T5835] loop2: detected capacity change from 0 to 32768 [pid 5839] <... chdir resumed>) = 0 [pid 5837] +++ exited with 0 +++ [pid 5835] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=20 /* 0.20 s */} --- [pid 5821] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5821] getdents64(3, <unfinished ...> [pid 5839] <... prctl resumed>) = 0 [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5839] setpgid(0, 0 <unfinished ...> [pid 5821] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5839] <... setpgid resumed>) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5821] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5839] <... openat resumed>) = 3 [pid 5821] unlink("./1/binderfs") = 0 [pid 5821] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5839] write(3, "1000", 4) = 4 executing program [pid 5839] close(3) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5839] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5839] write(1, "executing program\n", 18) = 18 [pid 5839] memfd_create("syzkaller", 0 <unfinished ...> [pid 5835] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5839] <... memfd_create resumed>) = 3 [pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5835] <... openat resumed>) = 3 [pid 5835] chdir("./file0") = 0 [pid 5821] <... umount2 resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5821] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5835] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] exit_group(0 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5835] <... exit_group resumed>) = ? [pid 5821] <... openat resumed>) = 4 [pid 5835] +++ exited with 0 +++ [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, <unfinished ...> [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=19 /* 0.19 s */} --- [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] <... restart_syscall resumed>) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./1/file0") = 0 [pid 5820] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] getdents64(3, <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3 <unfinished ...> [pid 5820] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5821] rmdir("./1" <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5821] <... rmdir resumed>) = 0 [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5821] mkdir("./2", 0777 <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] <... mkdir resumed>) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5821] <... openat resumed>) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] <... ioctl resumed>) = 0 [pid 5820] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] close(3 <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./1/binderfs") = 0 [pid 5820] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5820] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./1/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./1") = 0 [pid 5820] mkdir("./2", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5840 attached <unfinished ...> [pid 5838] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5840 [pid 5840] set_robust_list(0x5555947bd660, 24) = 0 [pid 5822] <... close resumed>) = 0 [pid 5840] chdir("./2") = 0 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5840] setpgid(0, 0 <unfinished ...> [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5841 [pid 5840] <... setpgid resumed>) = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5841 attached ) = 3 [pid 5841] set_robust_list(0x5555947bd660, 24) = 0 [pid 5840] write(3, "1000", 4) = 4 [pid 5840] close(3) = 0 [pid 5840] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5841] chdir("./2" <unfinished ...> [pid 5840] write(1, "executing program\n", 18 <unfinished ...> [pid 5841] <... chdir resumed>) = 0 [pid 5840] <... write resumed>) = 18 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5840] memfd_create("syzkaller", 0 <unfinished ...> [pid 5841] setpgid(0, 0 <unfinished ...> [pid 5840] <... memfd_create resumed>) = 3 [pid 5841] <... setpgid resumed>) = 0 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5840] <... mmap resumed>) = 0x7f976c200000 [pid 5841] <... openat resumed>) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5841] memfd_create("syzkaller", 0) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5821] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5842 ./strace-static-x86_64: Process 5842 attached [pid 5842] set_robust_list(0x5555947bd660, 24) = 0 [pid 5842] chdir("./2") = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] setpgid(0, 0) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 [pid 5842] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5842] write(1, "executing program\n", 18) = 18 [pid 5842] memfd_create("syzkaller", 0) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5838] <... write resumed>) = 16777216 [pid 5838] munmap(0x7f976c200000, 138412032) = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5838] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5838] close(3) = 0 [pid 5838] close(4 <unfinished ...> [pid 5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5838] <... close resumed>) = 0 [pid 5838] mkdir("./file0", 0777) = 0 [pid 5838] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5838] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5838] chdir("./file0") = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5838] exit_group(0) = ? [pid 5838] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=24 /* 0.24 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 66.576038][ T5838] loop0: detected capacity change from 0 to 32768 [pid 5818] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./2/binderfs") = 0 [pid 5818] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5818] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./2/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./2" <unfinished ...> [pid 5842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] <... rmdir resumed>) = 0 [pid 5818] mkdir("./3", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3 <unfinished ...> [pid 5839] <... write resumed>) = 16777216 [pid 5839] munmap(0x7f976c200000, 138412032) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5839] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5818] <... close resumed>) = 0 [pid 5839] close(3) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5839] close(4 <unfinished ...> [pid 5840] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 5843 attached [pid 5843] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5843 [pid 5839] <... close resumed>) = 0 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5839] mkdir("./file0", 0777 <unfinished ...> [pid 5840] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5843] chdir("./3" <unfinished ...> [pid 5839] <... mkdir resumed>) = 0 [pid 5843] <... chdir resumed>) = 0 [pid 5839] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5841] <... write resumed>) = 16777216 [pid 5840] <... munmap resumed>) = 0 [pid 5839] <... mount resumed>) = 0 [pid 5843] <... openat resumed>) = 3 [pid 5841] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5839] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 66.907251][ T5839] loop1: detected capacity change from 0 to 32768 [pid 5840] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5843] write(3, "1000", 4 <unfinished ...> [pid 5841] <... munmap resumed>) = 0 [pid 5839] chdir("./file0" <unfinished ...> [pid 5841] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5839] <... chdir resumed>) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5841] <... openat resumed>) = 4 [pid 5840] <... openat resumed>) = 4 [pid 5841] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5843] <... write resumed>) = 4 [pid 5840] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5843] close(3 <unfinished ...> [pid 5841] <... ioctl resumed>) = 0 [pid 5839] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5843] <... close resumed>) = 0 executing program [pid 5843] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5843] write(1, "executing program\n", 18) = 18 [pid 5843] memfd_create("syzkaller", 0) = 3 [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5839] exit_group(0 <unfinished ...> [pid 5841] close(3 <unfinished ...> [pid 5839] <... exit_group resumed>) = ? [pid 5841] <... close resumed>) = 0 [pid 5841] close(4 <unfinished ...> [pid 5839] +++ exited with 0 +++ [pid 5841] <... close resumed>) = 0 [pid 5841] mkdir("./file0", 0777 <unfinished ...> [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=29 /* 0.29 s */} --- [pid 5841] <... mkdir resumed>) = 0 [pid 5819] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5841] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5819] <... restart_syscall resumed>) = 0 [pid 5840] <... ioctl resumed>) = 0 [pid 5840] close(3) = 0 [pid 5840] close(4) = 0 [pid 5819] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5840] mkdir("./file0", 0777 <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] <... mkdir resumed>) = 0 [pid 5819] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5840] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5819] <... openat resumed>) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./2/binderfs") = 0 [pid 5819] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5841] <... mount resumed>) = 0 [ 66.983937][ T5841] loop4: detected capacity change from 0 to 32768 [ 66.984358][ T5840] loop2: detected capacity change from 0 to 32768 [pid 5841] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5840] <... mount resumed>) = 0 [pid 5819] <... umount2 resumed>) = 0 [pid 5840] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5819] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5840] <... openat resumed>) = 3 [pid 5840] chdir("./file0" <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] <... chdir resumed>) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5840] exit_group(0) = ? [pid 5841] chdir("./file0" <unfinished ...> [pid 5840] +++ exited with 0 +++ [pid 5819] newfstatat(AT_FDCWD, "./2/file0", <unfinished ...> [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=23 /* 0.23 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5841] <... chdir resumed>) = 0 [pid 5819] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5841] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5841] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5819] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5841] exit_group(0 <unfinished ...> [pid 5819] <... openat resumed>) = 4 [pid 5819] newfstatat(4, "", <unfinished ...> [pid 5841] <... exit_group resumed>) = ? [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... restart_syscall resumed>) = 0 [pid 5819] getdents64(4, <unfinished ...> [pid 5841] +++ exited with 0 +++ [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=20 /* 0.20 s */} --- [pid 5820] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] getdents64(4, <unfinished ...> [pid 5822] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5822] <... openat resumed>) = 3 [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5819] close(4 <unfinished ...> [pid 5822] newfstatat(3, "", <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5822] getdents64(3, <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] rmdir("./2/file0" <unfinished ...> [pid 5822] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./2/binderfs", <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./2/binderfs", <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] <... rmdir resumed>) = 0 [pid 5822] unlink("./2/binderfs" <unfinished ...> [pid 5820] unlink("./2/binderfs" <unfinished ...> [pid 5822] <... unlink resumed>) = 0 [pid 5820] <... unlink resumed>) = 0 [pid 5822] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./2") = 0 [pid 5822] <... umount2 resumed>) = 0 [pid 5819] mkdir("./3", 0777 <unfinished ...> [pid 5822] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] <... umount2 resumed>) = 0 [pid 5822] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./2/file0", <unfinished ...> [pid 5819] <... mkdir resumed>) = 0 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] <... openat resumed>) = 4 [pid 5820] <... openat resumed>) = 4 [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5820] newfstatat(4, "", <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] <... openat resumed>) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] <... ioctl resumed>) = 0 [pid 5842] <... write resumed>) = 16777216 [pid 5819] close(3 <unfinished ...> [pid 5842] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5822] getdents64(4, <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5820] close(4) = 0 [pid 5822] rmdir("./2/file0") = 0 [pid 5820] rmdir("./2/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] getdents64(3, <unfinished ...> [pid 5820] close(3 <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] <... close resumed>) = 0 [pid 5822] close(3 <unfinished ...> [pid 5820] rmdir("./2" <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5820] <... rmdir resumed>) = 0 [pid 5822] rmdir("./2") = 0 [pid 5820] mkdir("./3", 0777 <unfinished ...> [pid 5822] mkdir("./3", 0777 <unfinished ...> [pid 5820] <... mkdir resumed>) = 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5844 ./strace-static-x86_64: Process 5844 attached [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5844] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5844] chdir("./3" <unfinished ...> [pid 5820] <... ioctl resumed>) = 0 [pid 5844] <... chdir resumed>) = 0 [pid 5820] close(3 <unfinished ...> [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5844] <... prctl resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5844] setpgid(0, 0) = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5845 [pid 5844] <... openat resumed>) = 3 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5844] symlink("/dev/binderfs", "./binderfs") = 0 executing program ./strace-static-x86_64: Process 5845 attached [pid 5844] write(1, "executing program\n", 18 <unfinished ...> [pid 5845] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5844] <... write resumed>) = 18 [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5845] chdir("./3" <unfinished ...> [pid 5842] <... munmap resumed>) = 0 [pid 5845] <... chdir resumed>) = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5842] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5845] <... prctl resumed>) = 0 [pid 5842] <... openat resumed>) = 4 [pid 5845] setpgid(0, 0 <unfinished ...> [pid 5842] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5845] <... setpgid resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] write(3, "1000", 4) = 4 [pid 5845] close(3) = 0 [pid 5845] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5845] write(1, "executing program\n", 18executing program ) = 18 [pid 5842] <... ioctl resumed>) = 0 [pid 5845] memfd_create("syzkaller", 0 <unfinished ...> [pid 5842] close(3) = 0 [pid 5842] close(4) = 0 [ 67.154531][ T5842] loop3: detected capacity change from 0 to 32768 [pid 5842] mkdir("./file0", 0777) = 0 [pid 5845] <... memfd_create resumed>) = 3 [pid 5842] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5842] <... mount resumed>) = 0 [pid 5842] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5842] chdir("./file0") = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5842] exit_group(0) = ? [pid 5842] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=21 /* 0.21 s */} --- [pid 5821] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./2/binderfs") = 0 [pid 5821] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] <... close resumed>) = 0 [pid 5821] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5846 attached [pid 5821] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program ) = 4 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5846 [pid 5846] set_robust_list(0x5555947bd660, 24) = 0 [pid 5846] chdir("./3") = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5846] setpgid(0, 0) = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5846] write(3, "1000", 4) = 4 [pid 5846] close(3) = 0 [pid 5846] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5846] write(1, "executing program\n", 18) = 18 [pid 5846] memfd_create("syzkaller", 0) = 3 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4 <unfinished ...> [pid 5846] <... mmap resumed>) = 0x7f976c200000 [pid 5821] <... close resumed>) = 0 [pid 5821] rmdir("./2/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./2") = 0 [pid 5821] mkdir("./3", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5847 attached , child_tidptr=0x5555947bd650) = 5847 [pid 5847] set_robust_list(0x5555947bd660, 24) = 0 [pid 5847] chdir("./3") = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4executing program ) = 4 [pid 5847] close(3) = 0 [pid 5847] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5847] write(1, "executing program\n", 18) = 18 [pid 5847] memfd_create("syzkaller", 0) = 3 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5846] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5843] <... write resumed>) = 16777216 [pid 5843] munmap(0x7f976c200000, 138412032) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5843] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5843] close(3) = 0 [pid 5843] close(4) = 0 [pid 5843] mkdir("./file0", 0777) = 0 [pid 5843] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5843] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5843] chdir("./file0") = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5843] exit_group(0) = ? [pid 5843] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=23 /* 0.23 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5818] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./3/binderfs") = 0 [pid 5818] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5818] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 67.875252][ T5843] loop0: detected capacity change from 0 to 32768 [pid 5818] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./3/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./3") = 0 [pid 5818] mkdir("./4", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5848 attached , child_tidptr=0x5555947bd650) = 5848 [pid 5848] set_robust_list(0x5555947bd660, 24) = 0 [pid 5848] chdir("./4") = 0 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5848] setpgid(0, 0) = 0 [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5848] write(3, "1000", 4 <unfinished ...> [pid 5845] <... write resumed>) = 16777216 [pid 5848] <... write resumed>) = 4 [pid 5848] close(3) = 0 [pid 5845] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5848] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5844] <... write resumed>) = 16777216 [pid 5848] write(1, "executing program\n", 18) = 18 [pid 5848] memfd_create("syzkaller", 0 <unfinished ...> [pid 5845] <... munmap resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5848] <... memfd_create resumed>) = 3 [pid 5845] <... openat resumed>) = 4 [pid 5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5845] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5848] <... mmap resumed>) = 0x7f976c200000 [pid 5844] munmap(0x7f976c200000, 138412032) = 0 [pid 5845] <... ioctl resumed>) = 0 [ 68.040225][ T5845] loop2: detected capacity change from 0 to 32768 [pid 5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5845] close(3) = 0 [pid 5844] <... openat resumed>) = 4 [pid 5845] close(4 <unfinished ...> [pid 5844] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5845] <... close resumed>) = 0 [pid 5844] <... ioctl resumed>) = 0 [pid 5845] mkdir("./file0", 0777) = 0 [pid 5844] close(3) = 0 [pid 5844] close(4) = 0 [pid 5844] mkdir("./file0", 0777) = 0 [pid 5844] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5846] <... write resumed>) = 16777216 [pid 5845] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5846] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5844] <... mount resumed>) = 0 [pid 5844] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5844] chdir("./file0") = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5844] exit_group(0) = ? [pid 5844] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=25 /* 0.25 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./3/binderfs") = 0 [ 68.085732][ T5844] loop4: detected capacity change from 0 to 32768 [pid 5822] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5846] <... munmap resumed>) = 0 [pid 5845] <... mount resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5845] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5846] <... openat resumed>) = 4 [pid 5845] <... openat resumed>) = 3 [pid 5845] chdir("./file0") = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5845] exit_group(0) = ? [pid 5845] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=22 /* 0.22 s */} --- [pid 5822] <... umount2 resumed>) = 0 [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5822] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5846] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5822] <... openat resumed>) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./3/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./3") = 0 [pid 5822] mkdir("./4", 0777) = 0 [pid 5820] <... restart_syscall resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5820] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3 <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached <unfinished ...> [pid 5847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5846] <... ioctl resumed>) = 0 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5849 [pid 5820] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5849] set_robust_list(0x5555947bd660, 24 <unfinished ...> [ 68.170638][ T5846] loop1: detected capacity change from 0 to 32768 [pid 5846] close(3executing program ) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5849] chdir("./4") = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] setpgid(0, 0) = 0 [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1000", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5849] write(1, "executing program\n", 18) = 18 [pid 5849] memfd_create("syzkaller", 0) = 3 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5846] close(4 <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5846] <... close resumed>) = 0 [pid 5846] mkdir("./file0", 0777 <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5846] <... mkdir resumed>) = 0 [pid 5820] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5846] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./3/binderfs") = 0 [pid 5820] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5820] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5846] <... mount resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5846] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5846] <... openat resumed>) = 3 [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5846] chdir("./file0" <unfinished ...> [pid 5820] rmdir("./3/file0" <unfinished ...> [pid 5846] <... chdir resumed>) = 0 [pid 5820] <... rmdir resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5846] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5846] exit_group(0 <unfinished ...> [pid 5820] close(3 <unfinished ...> [pid 5846] <... exit_group resumed>) = ? [pid 5820] <... close resumed>) = 0 [pid 5820] rmdir("./3") = 0 [pid 5846] +++ exited with 0 +++ [pid 5820] mkdir("./4", 0777) = 0 [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=19 /* 0.19 s */} --- [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5819] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5819] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] <... ioctl resumed>) = 0 [pid 5819] <... openat resumed>) = 3 [pid 5820] close(3 <unfinished ...> [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./3/binderfs") = 0 [pid 5819] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./3/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./3") = 0 [pid 5819] mkdir("./4", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5848] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5850 attached , child_tidptr=0x5555947bd650) = 5850 [pid 5850] set_robust_list(0x5555947bd660, 24) = 0 [pid 5850] chdir("./4") = 0 [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5850] setpgid(0, 0) = 0 [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1000", 4) = 4 [pid 5850] close(3 <unfinished ...> [pid 5847] <... write resumed>) = 16777216 [pid 5819] <... close resumed>) = 0 [pid 5850] <... close resumed>) = 0 [pid 5847] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5850] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 5851 attached [pid 5850] write(1, "executing program\n", 18 <unfinished ...> [pid 5851] set_robust_list(0x5555947bd660, 24) = 0 [pid 5851] chdir("./4") = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] setpgid(0, 0) = 0 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5850] <... write resumed>) = 18 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5851 [pid 5851] write(3, "1000", 4) = 4 [pid 5851] close(3) = 0 [pid 5851] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5850] memfd_create("syzkaller", 0 <unfinished ...> [pid 5851] write(1, "executing program\n", 18 <unfinished ...> [pid 5850] <... memfd_create resumed>) = 3 [pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program <unfinished ...> [pid 5851] <... write resumed>) = 18 [pid 5851] memfd_create("syzkaller", 0 <unfinished ...> [pid 5850] <... mmap resumed>) = 0x7f976c200000 [pid 5851] <... memfd_create resumed>) = 3 [pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5847] <... munmap resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5847] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5847] close(3) = 0 [pid 5847] close(4) = 0 [pid 5847] mkdir("./file0", 0777) = 0 [pid 5847] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5847] <... mount resumed>) = 0 [pid 5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5847] chdir("./file0") = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 68.675330][ T5847] loop3: detected capacity change from 0 to 32768 [pid 5847] exit_group(0) = ? [pid 5847] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=21 /* 0.21 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./3/binderfs") = 0 [pid 5821] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./3/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./3") = 0 [pid 5821] mkdir("./4", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5848] <... write resumed>) = 16777216 [pid 5848] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5850] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5848] <... munmap resumed>) = 0 [pid 5848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5848] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5848] close(3 <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5848] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5848] close(4) = 0 ./strace-static-x86_64: Process 5852 attached [pid 5851] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5848] mkdir("./file0", 0777 <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5852 [pid 5852] set_robust_list(0x5555947bd660, 24) = 0 [pid 5852] chdir("./4" <unfinished ...> [pid 5848] <... mkdir resumed>) = 0 [pid 5852] <... chdir resumed>) = 0 [pid 5848] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] setpgid(0, 0) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1000", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5852] write(1, "executing program\n", 18executing program ) = 18 [pid 5852] memfd_create("syzkaller", 0) = 3 [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5848] <... mount resumed>) = 0 [pid 5848] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5849] <... write resumed>) = 16777216 [pid 5848] chdir("./file0") = 0 [pid 5848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 69.025423][ T5848] loop0: detected capacity change from 0 to 32768 [pid 5848] exit_group(0 <unfinished ...> [pid 5849] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5848] <... exit_group resumed>) = ? [pid 5848] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5848, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=26 /* 0.26 s */} --- [pid 5818] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./4/binderfs") = 0 [pid 5818] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5849] <... munmap resumed>) = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5849] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5818] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5849] <... ioctl resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5849] close(3 <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./4/file0", <unfinished ...> [pid 5849] <... close resumed>) = 0 [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5849] close(4 <unfinished ...> [pid 5818] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5849] <... close resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5849] mkdir("./file0", 0777 <unfinished ...> [pid 5818] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5849] <... mkdir resumed>) = 0 [pid 5818] <... openat resumed>) = 4 [pid 5849] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [ 69.132488][ T5849] loop4: detected capacity change from 0 to 32768 [pid 5818] newfstatat(4, "", <unfinished ...> [pid 5849] <... mount resumed>) = 0 [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5849] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5818] getdents64(4, <unfinished ...> [pid 5849] <... openat resumed>) = 3 [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5849] chdir("./file0" <unfinished ...> [pid 5818] getdents64(4, <unfinished ...> [pid 5849] <... chdir resumed>) = 0 [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4 <unfinished ...> [pid 5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] rmdir("./4/file0" <unfinished ...> [pid 5849] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5818] <... rmdir resumed>) = 0 [pid 5849] exit_group(0 <unfinished ...> [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./4") = 0 [pid 5849] <... exit_group resumed>) = ? [pid 5818] mkdir("./5", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3 <unfinished ...> [pid 5849] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=18 /* 0.18 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./4/binderfs") = 0 [pid 5822] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5822] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./4/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5850] <... write resumed>) = 16777216 [pid 5822] close(3 <unfinished ...> [pid 5850] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5822] rmdir("./4") = 0 [pid 5822] mkdir("./5", 0777) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3 <unfinished ...> [pid 5850] <... munmap resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5850] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5850] close(3) = 0 [pid 5850] close(4) = 0 [pid 5850] mkdir("./file0", 0777) = 0 [ 69.346585][ T5850] loop2: detected capacity change from 0 to 32768 [pid 5850] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5853 attached , child_tidptr=0x5555947bd650) = 5853 [pid 5853] set_robust_list(0x5555947bd660, 24) = 0 [pid 5853] chdir("./5") = 0 [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5850] <... mount resumed>) = 0 [pid 5853] setpgid(0, 0) = 0 [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] <... write resumed>) = 16777216 [pid 5853] write(3, "1000", 4 <unfinished ...> [pid 5851] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5853] <... write resumed>) = 4 [pid 5850] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5853] close(3 <unfinished ...> [pid 5850] <... openat resumed>) = 3 [pid 5853] <... close resumed>) = 0 [pid 5850] chdir("./file0" <unfinished ...> [pid 5853] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5850] <... chdir resumed>) = 0 [pid 5853] <... symlink resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5850] exit_group(0) = ? executing program [pid 5853] write(1, "executing program\n", 18 <unfinished ...> [pid 5850] +++ exited with 0 +++ [pid 5853] <... write resumed>) = 18 [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=25 /* 0.25 s */} --- [pid 5820] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] unlink("./4/binderfs") = 0 [pid 5820] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5854 attached <unfinished ...> [pid 5853] memfd_create("syzkaller", 0 <unfinished ...> [pid 5851] <... munmap resumed>) = 0 [pid 5820] <... umount2 resumed>) = 0 [pid 5820] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5854] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5854 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] <... set_robust_list resumed>) = 0 [pid 5820] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5854] chdir("./5" <unfinished ...> [pid 5853] <... memfd_create resumed>) = 3 [pid 5852] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5851] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5820] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5854] <... chdir resumed>) = 0 [pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5851] <... openat resumed>) = 4 [pid 5851] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5854] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5853] <... mmap resumed>) = 0x7f976c200000 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./4/file0" <unfinished ...> [pid 5854] <... prctl resumed>) = 0 [pid 5820] <... rmdir resumed>) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./4") = 0 [pid 5854] setpgid(0, 0 <unfinished ...> [pid 5820] mkdir("./5", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3 <unfinished ...> [pid 5854] <... setpgid resumed>) = 0 [pid 5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] <... ioctl resumed>) = 0 [pid 5854] write(3, "1000", 4) = 4 [pid 5851] close(3 <unfinished ...> [pid 5854] close(3 <unfinished ...> [pid 5851] <... close resumed>) = 0 [pid 5854] <... close resumed>) = 0 [pid 5851] close(4 <unfinished ...> [pid 5854] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5851] <... close resumed>) = 0 [pid 5854] <... symlink resumed>) = 0 [pid 5851] mkdir("./file0", 0777) = 0 [pid 5854] write(1, "executing program\n", 18executing program ) = 18 [pid 5854] memfd_create("syzkaller", 0) = 3 [pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [ 69.506174][ T5851] loop1: detected capacity change from 0 to 32768 [pid 5851] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5854] <... mmap resumed>) = 0x7f976c200000 [pid 5851] <... mount resumed>) = 0 [pid 5851] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5851] chdir("./file0") = 0 [pid 5851] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5851] exit_group(0) = ? [pid 5851] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=27 /* 0.27 s */} --- [pid 5819] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./4/binderfs") = 0 [pid 5819] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./4/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./4") = 0 [pid 5819] mkdir("./5", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached , child_tidptr=0x5555947bd650) = 5855 [pid 5855] set_robust_list(0x5555947bd660, 24) = 0 [pid 5855] chdir("./5") = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5855] setpgid(0, 0) = 0 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5855] write(3, "1000", 4) = 4 [pid 5855] close(3) = 0 [pid 5855] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5855] write(1, "executing program\n", 18executing program ) = 18 [pid 5855] memfd_create("syzkaller", 0) = 3 [pid 5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5852] <... write resumed>) = 16777216 [pid 5853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5852] munmap(0x7f976c200000, 138412032) = 0 [pid 5854] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5852] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5856 ./strace-static-x86_64: Process 5856 attached [pid 5852] <... ioctl resumed>) = 0 [pid 5852] close(3) = 0 [pid 5852] close(4 <unfinished ...> [pid 5856] set_robust_list(0x5555947bd660, 24) = 0 [pid 5856] chdir("./5") = 0 [pid 5852] <... close resumed>) = 0 [pid 5852] mkdir("./file0", 0777 <unfinished ...> [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5852] <... mkdir resumed>) = 0 [pid 5852] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5852] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5852] chdir("./file0") = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5856] <... prctl resumed>) = 0 [pid 5856] setpgid(0, 0 <unfinished ...> [pid 5852] exit_group(0 <unfinished ...> [pid 5856] <... setpgid resumed>) = 0 [pid 5852] <... exit_group resumed>) = ? [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5852] +++ exited with 0 +++ [pid 5856] <... openat resumed>) = 3 [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=27 /* 0.27 s */} --- [pid 5856] write(3, "1000", 4 <unfinished ...> [pid 5821] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5856] <... write resumed>) = 4 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5856] close(3) = 0 [pid 5856] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5821] <... openat resumed>) = 3 [pid 5856] <... symlink resumed>) = 0 [ 69.916878][ T5852] loop3: detected capacity change from 0 to 32768 [pid 5821] newfstatat(3, "", executing program <unfinished ...> [pid 5856] write(1, "executing program\n", 18 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5856] <... write resumed>) = 18 [pid 5856] memfd_create("syzkaller", 0 <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5856] <... memfd_create resumed>) = 3 [pid 5821] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./4/binderfs") = 0 [pid 5821] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./4/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./4") = 0 [pid 5821] mkdir("./5", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5857 attached , child_tidptr=0x5555947bd650) = 5857 [pid 5857] set_robust_list(0x5555947bd660, 24) = 0 [pid 5857] chdir("./5") = 0 [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 5857] setpgid(0, 0) = 0 [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5857] write(3, "1000", 4) = 4 [pid 5857] close(3) = 0 [pid 5857] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5857] write(1, "executing program\n", 18) = 18 [pid 5857] memfd_create("syzkaller", 0) = 3 [pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5853] <... write resumed>) = 16777216 [pid 5853] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5853] <... munmap resumed>) = 0 [pid 5854] <... write resumed>) = 16777216 [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5853] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5854] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5853] close(3) = 0 [pid 5853] close(4) = 0 [pid 5853] mkdir("./file0", 0777 <unfinished ...> [pid 5854] <... munmap resumed>) = 0 [pid 5853] <... mkdir resumed>) = 0 [pid 5853] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5854] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 70.313930][ T5853] loop0: detected capacity change from 0 to 32768 [pid 5854] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5856] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5853] <... mount resumed>) = 0 [pid 5853] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5853] chdir("./file0") = 0 [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5853] exit_group(0) = ? [pid 5853] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=17 /* 0.17 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5854] close(3) = 0 [pid 5854] close(4) = 0 [pid 5854] mkdir("./file0", 0777) = 0 [pid 5854] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] <... restart_syscall resumed>) = 0 [pid 5818] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./5/binderfs") = 0 [pid 5818] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5818] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./5/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./5") = 0 [pid 5818] mkdir("./6", 0777) = 0 [ 70.355906][ T5854] loop4: detected capacity change from 0 to 32768 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5854] <... mount resumed>) = 0 [pid 5854] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5854] <... openat resumed>) = 3 [pid 5818] <... ioctl resumed>) = 0 [pid 5854] chdir("./file0" <unfinished ...> [pid 5818] close(3 <unfinished ...> [pid 5854] <... chdir resumed>) = 0 [pid 5854] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5854] exit_group(0) = ? [pid 5854] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5854, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=24 /* 0.24 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./5/binderfs") = 0 [pid 5822] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5822] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./5/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./5") = 0 [pid 5822] mkdir("./6", 0777) = 0 [pid 5857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5858 attached , child_tidptr=0x5555947bd650) = 5858 [pid 5858] set_robust_list(0x5555947bd660, 24) = 0 [pid 5858] chdir("./6") = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5858] write(3, "1000", 4) = 4 [pid 5858] close(3) = 0 [pid 5858] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5858] write(1, "executing program\n", 18) = 18 [pid 5858] memfd_create("syzkaller", 0) = 3 [pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5859 ./strace-static-x86_64: Process 5859 attached [pid 5859] set_robust_list(0x5555947bd660, 24) = 0 [pid 5859] chdir("./6") = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5859] setpgid(0, 0) = 0 [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5859] write(3, "1000", 4) = 4 [pid 5859] close(3) = 0 [pid 5859] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5855] <... write resumed>) = 16777216 [pid 5855] munmap(0x7f976c200000, 138412032executing program <unfinished ...> [pid 5859] write(1, "executing program\n", 18) = 18 [pid 5859] memfd_create("syzkaller", 0) = 3 [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5855] <... munmap resumed>) = 0 [pid 5855] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5855] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5855] close(3) = 0 [pid 5855] close(4) = 0 [pid 5855] mkdir("./file0", 0777) = 0 [pid 5856] <... write resumed>) = 16777216 [pid 5855] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [ 70.774464][ T5855] loop2: detected capacity change from 0 to 32768 [pid 5856] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5855] <... mount resumed>) = 0 [pid 5855] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5855] chdir("./file0") = 0 [pid 5855] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5855] exit_group(0) = ? [pid 5855] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=23 /* 0.23 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5820] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./5/binderfs") = 0 [pid 5820] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5856] <... munmap resumed>) = 0 [pid 5820] <... umount2 resumed>) = 0 [pid 5820] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5856] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5820] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5856] <... openat resumed>) = 4 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5820] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5856] <... ioctl resumed>) = 0 [pid 5820] <... openat resumed>) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./5/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./5") = 0 [pid 5820] mkdir("./6", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5860 attached , child_tidptr=0x5555947bd650) = 5860 [pid 5860] set_robust_list(0x5555947bd660, 24) = 0 [pid 5860] chdir("./6") = 0 [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5860] setpgid(0, 0) = 0 [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5857] <... write resumed>) = 16777216 [pid 5856] close(3 <unfinished ...> [pid 5860] <... openat resumed>) = 3 [pid 5856] <... close resumed>) = 0 [pid 5857] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5856] close(4 <unfinished ...> [pid 5860] write(3, "1000", 4 <unfinished ...> [pid 5856] <... close resumed>) = 0 executing program [pid 5856] mkdir("./file0", 0777 <unfinished ...> [pid 5860] <... write resumed>) = 4 [pid 5856] <... mkdir resumed>) = 0 [pid 5860] close(3 <unfinished ...> [pid 5856] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5860] <... close resumed>) = 0 [pid 5860] symlink("/dev/binderfs", "./binderfs") = 0 [ 70.883612][ T5856] loop1: detected capacity change from 0 to 32768 [pid 5860] write(1, "executing program\n", 18) = 18 [pid 5860] memfd_create("syzkaller", 0 <unfinished ...> [pid 5856] <... mount resumed>) = 0 [pid 5860] <... memfd_create resumed>) = 3 [pid 5856] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5856] <... openat resumed>) = 3 [pid 5860] <... mmap resumed>) = 0x7f976c200000 [pid 5856] chdir("./file0") = 0 [pid 5856] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5856] exit_group(0) = ? [pid 5856] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5856, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5857] <... munmap resumed>) = 0 [pid 5858] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... restart_syscall resumed>) = 0 [pid 5819] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5819] getdents64(3, <unfinished ...> [pid 5857] <... openat resumed>) = 4 [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5857] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./5/binderfs") = 0 [pid 5819] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5857] <... ioctl resumed>) = 0 [pid 5857] close(3) = 0 [pid 5857] close(4) = 0 [pid 5857] mkdir("./file0", 0777) = 0 [ 70.978692][ T5857] loop3: detected capacity change from 0 to 32768 [pid 5857] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5819] <... umount2 resumed>) = 0 [pid 5857] <... mount resumed>) = 0 [pid 5819] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5857] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5857] <... openat resumed>) = 3 [pid 5819] newfstatat(AT_FDCWD, "./5/file0", <unfinished ...> [pid 5857] chdir("./file0") = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5819] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5857] exit_group(0) = ? [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5857] +++ exited with 0 +++ [pid 5819] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=20 /* 0.20 s */} --- [pid 5819] newfstatat(4, "", <unfinished ...> [pid 5821] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./5/file0" <unfinished ...> [pid 5821] <... restart_syscall resumed>) = 0 [pid 5819] <... rmdir resumed>) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] close(3 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... close resumed>) = 0 [pid 5821] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5819] rmdir("./5" <unfinished ...> [pid 5821] <... openat resumed>) = 3 [pid 5819] <... rmdir resumed>) = 0 [pid 5821] newfstatat(3, "", <unfinished ...> [pid 5819] mkdir("./6", 0777 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] <... mkdir resumed>) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] <... openat resumed>) = 3 [pid 5821] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... ioctl resumed>) = 0 [pid 5821] newfstatat(AT_FDCWD, "./5/binderfs", <unfinished ...> [pid 5819] close(3 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./5/binderfs") = 0 [pid 5821] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./5/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./5") = 0 [pid 5821] mkdir("./6", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5860] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5861 attached <unfinished ...> [pid 5861] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5861 [pid 5861] <... set_robust_list resumed>) = 0 [pid 5861] chdir("./6") = 0 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5861] setpgid(0, 0) = 0 [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5861] write(3, "1000", 4) = 4 [pid 5861] close(3) = 0 [pid 5861] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5858] <... write resumed>) = 16777216 [pid 5861] <... symlink resumed>) = 0 [pid 5821] <... close resumed>) = 0 [pid 5861] write(1, "executing program\n", 18executing program ) = 18 [pid 5858] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5861] memfd_create("syzkaller", 0 <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5861] <... memfd_create resumed>) = 3 [pid 5861] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5862 [pid 5858] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5862 attached [pid 5862] set_robust_list(0x5555947bd660, 24) = 0 [pid 5862] chdir("./6" <unfinished ...> [pid 5858] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5858] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5862] <... chdir resumed>) = 0 [pid 5862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5862] setpgid(0, 0) = 0 [pid 5859] <... write resumed>) = 16777216 [pid 5862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5859] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5858] <... ioctl resumed>) = 0 [pid 5858] close(3) = 0 [pid 5858] close(4) = 0 [pid 5862] <... openat resumed>) = 3 [pid 5858] mkdir("./file0", 0777) = 0 [pid 5858] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5862] write(3, "1000", 4) = 4 [pid 5862] close(3) = 0 [pid 5858] <... mount resumed>) = 0 [pid 5858] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5858] chdir("./file0") = 0 [pid 5858] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5858] exit_group(0) = ? [pid 5862] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5859] <... munmap resumed>) = 0 [pid 5858] +++ exited with 0 +++ [pid 5862] <... symlink resumed>) = 0 [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5858, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=21 /* 0.21 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>executing program <unfinished ...> [pid 5862] write(1, "executing program\n", 18 <unfinished ...> [pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5862] <... write resumed>) = 18 [pid 5862] memfd_create("syzkaller", 0 <unfinished ...> [pid 5859] <... openat resumed>) = 4 [pid 5862] <... memfd_create resumed>) = 3 [ 71.464617][ T5858] loop4: detected capacity change from 0 to 32768 [pid 5859] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5822] <... restart_syscall resumed>) = 0 [pid 5862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5859] <... ioctl resumed>) = 0 [pid 5859] close(3) = 0 [pid 5859] close(4) = 0 [pid 5859] mkdir("./file0", 0777) = 0 [pid 5859] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5822] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5859] <... mount resumed>) = 0 [pid 5822] newfstatat(3, "", <unfinished ...> [pid 5859] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5859] <... openat resumed>) = 3 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5859] chdir("./file0" <unfinished ...> [pid 5822] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5859] <... chdir resumed>) = 0 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./6/binderfs" <unfinished ...> [pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5822] <... unlink resumed>) = 0 [ 71.515861][ T5859] loop0: detected capacity change from 0 to 32768 [pid 5822] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5859] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5859] exit_group(0) = ? [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5859] +++ exited with 0 +++ [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=22 /* 0.22 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5818] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] close(4 <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./6/binderfs", <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5822] rmdir("./6/file0" <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] <... rmdir resumed>) = 0 [pid 5818] unlink("./6/binderfs" <unfinished ...> [pid 5822] getdents64(3, <unfinished ...> [pid 5818] <... unlink resumed>) = 0 [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] close(3) = 0 [pid 5822] rmdir("./6") = 0 [pid 5818] <... umount2 resumed>) = 0 [pid 5822] mkdir("./7", 0777) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5818] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5818] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... ioctl resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] close(3 <unfinished ...> [pid 5818] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5860] <... write resumed>) = 16777216 [pid 5818] getdents64(4, <unfinished ...> [pid 5860] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./6/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./6") = 0 [pid 5818] mkdir("./7", 0777 <unfinished ...> [pid 5860] <... munmap resumed>) = 0 [pid 5818] <... mkdir resumed>) = 0 [pid 5860] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5860] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5860] <... ioctl resumed>) = 0 [pid 5860] close(3) = 0 [pid 5860] close(4) = 0 [pid 5860] mkdir("./file0", 0777) = 0 [pid 5860] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] <... ioctl resumed>) = 0 [pid 5818] close(3 <unfinished ...> [pid 5860] <... mount resumed>) = 0 [pid 5860] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5860] chdir("./file0") = 0 [pid 5860] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 71.728396][ T5860] loop2: detected capacity change from 0 to 32768 [pid 5860] exit_group(0) = ? [pid 5860] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5860, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=21 /* 0.21 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5820] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./6/binderfs") = 0 [pid 5820] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5820] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./6/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./6") = 0 [pid 5820] mkdir("./7", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5863 [pid 5861] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 5863 attached <unfinished ...> [pid 5863] set_robust_list(0x5555947bd660, 24) = 0 [pid 5863] chdir("./7") = 0 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5863] setpgid(0, 0) = 0 [pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5822] <... close resumed>) = 0 [pid 5863] write(3, "1000", 4) = 4 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5863] close(3) = 0 ./strace-static-x86_64: Process 5864 attached [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5864 [pid 5864] set_robust_list(0x5555947bd660, 24) = 0 [pid 5864] chdir("./7") = 0 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5863] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5864] setpgid(0, 0) = 0 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5863] <... symlink resumed>) = 0 executing program [pid 5863] write(1, "executing program\n", 18) = 18 [pid 5864] <... openat resumed>) = 3 [pid 5863] memfd_create("syzkaller", 0 <unfinished ...> [pid 5864] write(3, "1000", 4 <unfinished ...> [pid 5863] <... memfd_create resumed>) = 3 [pid 5864] <... write resumed>) = 4 [pid 5864] close(3) = 0 [pid 5864] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5864] write(1, "executing program\n", 18) = 18 [pid 5864] memfd_create("syzkaller", 0 <unfinished ...> [pid 5863] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5864] <... memfd_create resumed>) = 3 [pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5863] <... mmap resumed>) = 0x7f976c200000 [pid 5862] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5865 ./strace-static-x86_64: Process 5865 attached [pid 5865] set_robust_list(0x5555947bd660, 24) = 0 [pid 5865] chdir("./7") = 0 [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5865] setpgid(0, 0) = 0 executing program [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5865] write(3, "1000", 4) = 4 [pid 5865] close(3) = 0 [pid 5865] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5865] write(1, "executing program\n", 18) = 18 [pid 5865] memfd_create("syzkaller", 0) = 3 [pid 5865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5861] <... write resumed>) = 16777216 [pid 5861] munmap(0x7f976c200000, 138412032) = 0 [pid 5861] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5861] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5861] close(3) = 0 [pid 5861] close(4) = 0 [pid 5861] mkdir("./file0", 0777) = 0 [pid 5861] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [ 72.225492][ T5861] loop1: detected capacity change from 0 to 32768 [pid 5861] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5861] chdir("./file0") = 0 [pid 5861] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5863] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5861] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5861] exit_group(0) = ? [pid 5861] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5861, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=23 /* 0.23 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./6/binderfs") = 0 [pid 5864] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5862] <... write resumed>) = 16777216 [pid 5819] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5862] munmap(0x7f976c200000, 138412032) = 0 [pid 5862] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5862] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] <... umount2 resumed>) = 0 [pid 5819] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./6/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./6") = 0 [pid 5819] mkdir("./7", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5862] <... ioctl resumed>) = 0 [pid 5862] close(3) = 0 [pid 5862] close(4) = 0 [ 72.385770][ T5862] loop3: detected capacity change from 0 to 32768 [pid 5862] mkdir("./file0", 0777) = 0 [pid 5862] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5862] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5862] chdir("./file0") = 0 [pid 5862] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5862] exit_group(0) = ? [pid 5862] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5862, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=22 /* 0.22 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./6/binderfs") = 0 [pid 5821] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./6/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./6") = 0 [pid 5821] mkdir("./7", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5866 attached <unfinished ...> [pid 5866] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5866 [pid 5866] <... set_robust_list resumed>) = 0 [pid 5866] chdir("./7") = 0 [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5866] setpgid(0, 0) = 0 [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5864] <... write resumed>) = 16777216 [pid 5866] <... openat resumed>) = 3 [pid 5864] munmap(0x7f976c200000, 138412032executing program <unfinished ...> [pid 5866] write(3, "1000", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5866] write(1, "executing program\n", 18) = 18 [pid 5866] memfd_create("syzkaller", 0) = 3 [pid 5866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5865] <... write resumed>) = 16777216 [pid 5864] <... munmap resumed>) = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5864] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5863] <... write resumed>) = 16777216 [pid 5863] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5864] <... ioctl resumed>) = 0 [pid 5865] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5864] close(3) = 0 [pid 5864] close(4) = 0 [pid 5864] mkdir("./file0", 0777) = 0 [pid 5864] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5863] <... munmap resumed>) = 0 [pid 5863] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5863] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5864] <... mount resumed>) = 0 [pid 5864] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5864] chdir("./file0") = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5864] exit_group(0) = ? [pid 5863] <... ioctl resumed>) = 0 [pid 5865] <... munmap resumed>) = 0 [pid 5864] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5864, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=23 /* 0.23 s */} --- [pid 5865] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5822] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5863] close(3 <unfinished ...> [pid 5822] unlink("./7/binderfs" <unfinished ...> [pid 5863] <... close resumed>) = 0 [pid 5822] <... unlink resumed>) = 0 [pid 5863] close(4 <unfinished ...> [pid 5822] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5863] <... close resumed>) = 0 [pid 5863] mkdir("./file0", 0777) = 0 [pid 5863] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [ 72.715472][ T5864] loop4: detected capacity change from 0 to 32768 [ 72.755435][ T5863] loop2: detected capacity change from 0 to 32768 [pid 5865] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5865] close(3) = 0 [pid 5863] <... mount resumed>) = 0 [pid 5822] <... umount2 resumed>) = 0 [pid 5865] close(4 <unfinished ...> [pid 5863] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5865] <... close resumed>) = 0 [pid 5863] <... openat resumed>) = 3 [pid 5822] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5863] chdir("./file0") = 0 [pid 5863] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5865] mkdir("./file0", 0777 <unfinished ...> [pid 5863] exit_group(0 <unfinished ...> [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5863] <... exit_group resumed>) = ? [pid 5865] <... mkdir resumed>) = 0 [pid 5863] +++ exited with 0 +++ [pid 5822] newfstatat(AT_FDCWD, "./7/file0", <unfinished ...> [pid 5865] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5863, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=25 /* 0.25 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5865] <... mount resumed>) = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... restart_syscall resumed>) = 0 [pid 5865] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [ 72.787200][ T5865] loop0: detected capacity change from 0 to 32768 [pid 5822] getdents64(4, <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5865] <... openat resumed>) = 3 [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5865] chdir("./file0" <unfinished ...> [pid 5822] close(4 <unfinished ...> [pid 5820] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5865] <... chdir resumed>) = 0 [pid 5865] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5865] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5820] newfstatat(AT_FDCWD, "./7/binderfs", <unfinished ...> [pid 5865] exit_group(0 <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5865] <... exit_group resumed>) = ? [pid 5820] unlink("./7/binderfs" <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5820] <... unlink resumed>) = 0 [pid 5822] rmdir("./7/file0" <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5867 [pid 5820] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5867 attached <unfinished ...> [pid 5865] +++ exited with 0 +++ [pid 5822] <... rmdir resumed>) = 0 [pid 5822] getdents64(3, <unfinished ...> [pid 5867] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=26 /* 0.26 s */} --- [pid 5867] <... set_robust_list resumed>) = 0 [pid 5822] close(3 <unfinished ...> [pid 5867] chdir("./7" <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5822] rmdir("./7" <unfinished ...> [pid 5818] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... rmdir resumed>) = 0 [pid 5822] mkdir("./8", 0777 <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... mkdir resumed>) = 0 [pid 5818] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5867] <... chdir resumed>) = 0 [pid 5822] <... openat resumed>) = 3 [pid 5818] <... openat resumed>) = 3 [pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5818] newfstatat(3, "", <unfinished ...> [pid 5867] <... prctl resumed>) = 0 [pid 5822] <... ioctl resumed>) = 0 [pid 5867] setpgid(0, 0 <unfinished ...> [pid 5822] close(3 <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5867] <... setpgid resumed>) = 0 [pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5867] <... openat resumed>) = 3 [pid 5818] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./7/binderfs", <unfinished ...> [pid 5820] <... umount2 resumed>) = 0 [pid 5818] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./7/binderfs" <unfinished ...> [pid 5867] write(3, "1000", 4 <unfinished ...> [pid 5818] <... unlink resumed>) = 0 [pid 5867] <... write resumed>) = 4 [pid 5818] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5867] close(3) = 0 [pid 5867] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5867] write(1, "executing program\n", 18) = 18 [pid 5867] memfd_create("syzkaller", 0) = 3 [pid 5820] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./7/file0", <unfinished ...> [pid 5867] <... mmap resumed>) = 0x7f976c200000 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... openat resumed>) = 4 [pid 5818] newfstatat(AT_FDCWD, "./7/file0", <unfinished ...> [pid 5820] newfstatat(4, "", <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] <... openat resumed>) = 4 [pid 5820] close(4 <unfinished ...> [pid 5818] newfstatat(4, "", <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5820] rmdir("./7/file0" <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... rmdir resumed>) = 0 [pid 5818] getdents64(4, <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] getdents64(4, <unfinished ...> [pid 5820] close(3 <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] <... close resumed>) = 0 [pid 5818] close(4 <unfinished ...> [pid 5820] rmdir("./7" <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5820] <... rmdir resumed>) = 0 [pid 5818] rmdir("./7/file0") = 0 [pid 5820] mkdir("./8", 0777 <unfinished ...> [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] <... mkdir resumed>) = 0 [pid 5818] close(3 <unfinished ...> [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] rmdir("./7" <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5818] <... rmdir resumed>) = 0 [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5818] mkdir("./8", 0777 <unfinished ...> [pid 5820] <... ioctl resumed>) = 0 [pid 5818] <... mkdir resumed>) = 0 [pid 5820] close(3 <unfinished ...> [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3 <unfinished ...> [pid 5866] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5868 ./strace-static-x86_64: Process 5868 attached [pid 5868] set_robust_list(0x5555947bd660, 24) = 0 [pid 5868] chdir("./8") = 0 [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] setpgid(0, 0) = 0 [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1000", 4) = 4 [pid 5868] close(3) = 0 [pid 5868] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5868] write(1, "executing program\n", 18) = 18 [pid 5868] memfd_create("syzkaller", 0) = 3 [pid 5868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5869 ./strace-static-x86_64: Process 5869 attached [pid 5869] set_robust_list(0x5555947bd660, 24) = 0 [pid 5869] chdir("./8") = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] setpgid(0, 0) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5869] write(3, "1000", 4) = 4 [pid 5869] close(3) = 0 [pid 5869] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5869] write(1, "executing program\n", 18) = 18 [pid 5869] memfd_create("syzkaller", 0) = 3 [pid 5820] <... close resumed>) = 0 [pid 5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5869] <... mmap resumed>) = 0x7f976c200000 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5870 attached <unfinished ...> [pid 5870] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5870 [pid 5870] <... set_robust_list resumed>) = 0 [pid 5870] chdir("./8") = 0 [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5870] setpgid(0, 0) = 0 [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5870] write(3, "1000", 4) = 4 [pid 5870] close(3) = 0 [pid 5870] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5870] write(1, "executing program\n", 18) = 18 [pid 5870] memfd_create("syzkaller", 0) = 3 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5866] <... write resumed>) = 16777216 [pid 5866] munmap(0x7f976c200000, 138412032) = 0 [pid 5866] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5866] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5866] close(3) = 0 [pid 5866] close(4) = 0 [pid 5868] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5866] mkdir("./file0", 0777) = 0 [ 73.467043][ T5866] loop1: detected capacity change from 0 to 32768 [pid 5866] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5866] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5866] chdir("./file0") = 0 [pid 5866] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5866] exit_group(0) = ? [pid 5866] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5866, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5867] <... write resumed>) = 16777216 [pid 5867] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./7/binderfs") = 0 [pid 5819] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, <unfinished ...> [pid 5870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./7/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5867] <... munmap resumed>) = 0 [pid 5819] rmdir("./7" <unfinished ...> [pid 5867] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5867] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] <... rmdir resumed>) = 0 [pid 5869] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] mkdir("./8", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5867] <... ioctl resumed>) = 0 [pid 5867] close(3) = 0 [pid 5867] close(4) = 0 [pid 5867] mkdir("./file0", 0777) = 0 [ 73.631419][ T5867] loop3: detected capacity change from 0 to 32768 [pid 5867] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5867] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5867] chdir("./file0") = 0 [pid 5867] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5867] exit_group(0) = ? [pid 5867] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5867, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=18 /* 0.18 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./7/binderfs") = 0 [pid 5821] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./7/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./7") = 0 [pid 5821] mkdir("./8", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5871 attached <unfinished ...> [pid 5871] set_robust_list(0x5555947bd660, 24) = 0 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5871 [pid 5871] chdir("./8") = 0 [pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5871] setpgid(0, 0) = 0 [pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5871] write(3, "1000", 4) = 4 [pid 5871] close(3) = 0 [pid 5871] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5871] write(1, "executing program\n", 18) = 18 [pid 5871] memfd_create("syzkaller", 0) = 3 [pid 5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5819] <... close resumed>) = 0 [pid 5868] <... write resumed>) = 16777216 [pid 5868] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5872 attached , child_tidptr=0x5555947bd650) = 5872 [pid 5872] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5868] <... munmap resumed>) = 0 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5872] chdir("./8" <unfinished ...> [pid 5868] <... openat resumed>) = 4 [pid 5872] <... chdir resumed>) = 0 [pid 5872] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5868] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5872] <... prctl resumed>) = 0 [pid 5872] setpgid(0, 0 <unfinished ...> [pid 5868] <... ioctl resumed>) = 0 [pid 5872] <... setpgid resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] close(3 <unfinished ...> [pid 5872] write(3, "1000", 4 <unfinished ...> [pid 5868] <... close resumed>) = 0 [pid 5872] <... write resumed>) = 4 [pid 5868] close(4 <unfinished ...> [pid 5872] close(3) = 0 [pid 5872] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5868] <... close resumed>) = 0 [pid 5872] <... symlink resumed>) = 0 [pid 5868] mkdir("./file0", 0777executing program <unfinished ...> [pid 5872] write(1, "executing program\n", 18 <unfinished ...> [pid 5868] <... mkdir resumed>) = 0 [pid 5872] <... write resumed>) = 18 [pid 5868] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5872] memfd_create("syzkaller", 0 <unfinished ...> [pid 5868] <... mount resumed>) = 0 [ 73.923606][ T5868] loop4: detected capacity change from 0 to 32768 [pid 5872] <... memfd_create resumed>) = 3 [pid 5868] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5868] <... openat resumed>) = 3 [pid 5872] <... mmap resumed>) = 0x7f976c200000 [pid 5868] chdir("./file0") = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] exit_group(0) = ? [pid 5868] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5868, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=25 /* 0.25 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./8/binderfs") = 0 [pid 5822] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5869] <... write resumed>) = 16777216 [pid 5870] <... write resumed>) = 16777216 [pid 5870] munmap(0x7f976c200000, 138412032) = 0 [pid 5869] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] <... umount2 resumed>) = 0 [pid 5822] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, <unfinished ...> [pid 5870] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5870] <... openat resumed>) = 4 [pid 5822] close(4 <unfinished ...> [pid 5870] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5822] rmdir("./8/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./8") = 0 [pid 5822] mkdir("./9", 0777) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3 <unfinished ...> [pid 5869] <... munmap resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5870] <... ioctl resumed>) = 0 [pid 5870] close(3 <unfinished ...> [pid 5869] <... openat resumed>) = 4 [pid 5870] <... close resumed>) = 0 [pid 5869] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5870] close(4) = 0 [pid 5870] mkdir("./file0", 0777) = 0 [pid 5870] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5870] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5870] chdir("./file0" <unfinished ...> [pid 5869] <... ioctl resumed>) = 0 [pid 5870] <... chdir resumed>) = 0 [pid 5869] close(3 <unfinished ...> [pid 5870] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5869] <... close resumed>) = 0 [pid 5870] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] close(4 <unfinished ...> [pid 5870] exit_group(0 <unfinished ...> [pid 5869] <... close resumed>) = 0 [pid 5870] <... exit_group resumed>) = ? [pid 5869] mkdir("./file0", 0777 <unfinished ...> [pid 5870] +++ exited with 0 +++ [pid 5869] <... mkdir resumed>) = 0 [pid 5869] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5870, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=23 /* 0.23 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5820] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 74.098724][ T5870] loop2: detected capacity change from 0 to 32768 [ 74.135823][ T5869] loop0: detected capacity change from 0 to 32768 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./8/binderfs") = 0 [pid 5820] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5871] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5820] <... umount2 resumed>) = 0 [pid 5820] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./8/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./8" <unfinished ...> [pid 5869] <... mount resumed>) = 0 [pid 5820] <... rmdir resumed>) = 0 [pid 5869] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5820] mkdir("./9", 0777 <unfinished ...> [pid 5869] chdir("./file0" <unfinished ...> [pid 5820] <... mkdir resumed>) = 0 [pid 5869] <... chdir resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] exit_group(0) = ? [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3 <unfinished ...> [pid 5869] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=25 /* 0.25 s */} --- [pid 5818] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./8/binderfs") = 0 [pid 5818] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5818] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./8/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./8") = 0 [pid 5818] mkdir("./9", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5873 attached , child_tidptr=0x5555947bd650) = 5873 [pid 5873] set_robust_list(0x5555947bd660, 24) = 0 [pid 5873] chdir("./9") = 0 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5873] <... prctl resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5873] setpgid(0, 0) = 0 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5874 ./strace-static-x86_64: Process 5874 attached [pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5874] set_robust_list(0x5555947bd660, 24executing program <unfinished ...> [pid 5873] <... openat resumed>) = 3 [pid 5873] write(3, "1000", 4) = 4 [pid 5873] close(3) = 0 [pid 5873] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5873] write(1, "executing program\n", 18) = 18 [pid 5873] memfd_create("syzkaller", 0) = 3 [pid 5873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5874] <... set_robust_list resumed>) = 0 [pid 5874] chdir("./9") = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5874] setpgid(0, 0) = 0 [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5874] write(3, "1000", 4) = 4 [pid 5874] close(3) = 0 [pid 5874] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5874] write(1, "executing program\n", 18) = 18 executing program [pid 5874] memfd_create("syzkaller", 0) = 3 [pid 5874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5872] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5875 ./strace-static-x86_64: Process 5875 attached [pid 5875] set_robust_list(0x5555947bd660, 24) = 0 [pid 5875] chdir("./9") = 0 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5875] setpgid(0, 0) = 0 [pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5875] write(3, "1000", 4) = 4 [pid 5875] close(3) = 0 [pid 5875] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5875] write(1, "executing program\n", 18) = 18 [pid 5875] memfd_create("syzkaller", 0) = 3 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5871] <... write resumed>) = 16777216 [pid 5871] munmap(0x7f976c200000, 138412032) = 0 [pid 5871] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5871] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5871] close(3) = 0 [pid 5871] close(4) = 0 [pid 5871] mkdir("./file0", 0777) = 0 [pid 5871] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [ 74.633937][ T5871] loop3: detected capacity change from 0 to 32768 [pid 5871] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5871] chdir("./file0") = 0 [pid 5871] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5871] exit_group(0) = ? [pid 5871] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5871, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=25 /* 0.25 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./8/binderfs") = 0 [pid 5821] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5874] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5873] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5821] <... umount2 resumed>) = 0 [pid 5872] <... write resumed>) = 16777216 [pid 5821] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5872] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./8/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./8") = 0 [pid 5872] <... munmap resumed>) = 0 [pid 5821] mkdir("./9", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5872] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5872] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5872] close(3) = 0 [pid 5872] close(4) = 0 [pid 5872] mkdir("./file0", 0777) = 0 [pid 5872] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5872] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5872] chdir("./file0") = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] exit_group(0) = ? [pid 5872] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5872, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=24 /* 0.24 s */} --- [ 74.831357][ T5872] loop1: detected capacity change from 0 to 32768 [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./8/binderfs") = 0 [pid 5819] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./8/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] rmdir("./8") = 0 [pid 5819] mkdir("./9", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5876 attached , child_tidptr=0x5555947bd650) = 5876 [pid 5876] set_robust_list(0x5555947bd660, 24) = 0 [pid 5876] chdir("./9") = 0 [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5876] setpgid(0, 0) = 0 [pid 5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5873] <... write resumed>) = 16777216 [pid 5876] <... openat resumed>) = 3 [pid 5876] write(3, "1000", 4) = 4 [pid 5876] close(3) = 0 [pid 5876] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5873] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5876] write(1, "executing program\n", 18) = 18 [pid 5876] memfd_create("syzkaller", 0) = 3 [pid 5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5873] <... munmap resumed>) = 0 [pid 5874] <... write resumed>) = 16777216 [pid 5873] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5873] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5873] close(3 <unfinished ...> [pid 5874] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5873] close(4) = 0 [pid 5873] mkdir("./file0", 0777) = 0 [pid 5873] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5877 [pid 5873] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5873] chdir("./file0"./strace-static-x86_64: Process 5877 attached ) = 0 [pid 5877] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5873] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5877] <... set_robust_list resumed>) = 0 [pid 5873] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5873] exit_group(0 <unfinished ...> [pid 5877] chdir("./9" <unfinished ...> [pid 5873] <... exit_group resumed>) = ? [pid 5877] <... chdir resumed>) = 0 [pid 5873] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5877] setpgid(0, 0) = 0 [pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5818] <... restart_syscall resumed>) = 0 [pid 5877] write(3, "1000", 4) = 4 [pid 5818] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5877] close(3 <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... close resumed>) = 0 [pid 5818] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5877] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5818] <... openat resumed>) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 5877] <... symlink resumed>) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5877] write(1, "executing program\n", 18 <unfinished ...> [pid 5874] <... munmap resumed>) = 0 [pid 5818] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5877] <... write resumed>) = 18 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./9/binderfs") = 0 [pid 5818] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5877] memfd_create("syzkaller", 0 <unfinished ...> [pid 5874] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5877] <... memfd_create resumed>) = 3 [pid 5874] <... openat resumed>) = 4 [pid 5877] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5874] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5877] <... mmap resumed>) = 0x7f976c200000 [ 75.143218][ T5873] loop0: detected capacity change from 0 to 32768 [pid 5818] <... umount2 resumed>) = 0 [pid 5874] <... ioctl resumed>) = 0 [pid 5874] close(3) = 0 [pid 5874] close(4 <unfinished ...> [pid 5818] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... close resumed>) = 0 [pid 5818] getdents64(4, <unfinished ...> [pid 5874] mkdir("./file0", 0777) = 0 [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5874] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./9/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./9") = 0 [pid 5818] mkdir("./10", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [ 75.202071][ T5874] loop4: detected capacity change from 0 to 32768 [pid 5818] close(3 <unfinished ...> [pid 5874] <... mount resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5874] chdir("./file0") = 0 [pid 5874] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5874] exit_group(0) = ? [pid 5874] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5874, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=22 /* 0.22 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./9/binderfs") = 0 [pid 5822] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5875] <... write resumed>) = 16777216 [pid 5822] <... umount2 resumed>) = 0 [pid 5822] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, <unfinished ...> [pid 5875] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./9/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./9") = 0 [pid 5822] mkdir("./10", 0777) = 0 [pid 5875] <... munmap resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5875] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5875] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3 <unfinished ...> [pid 5875] <... ioctl resumed>) = 0 [pid 5875] close(3) = 0 [pid 5875] close(4) = 0 [pid 5875] mkdir("./file0", 0777) = 0 [ 75.372992][ T5875] loop2: detected capacity change from 0 to 32768 [pid 5875] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5875] <... mount resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5878 attached [pid 5875] chdir("./file0" <unfinished ...> [pid 5878] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5875] <... chdir resumed>) = 0 [pid 5878] <... set_robust_list resumed>) = 0 [pid 5875] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5878 [pid 5875] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5875] exit_group(0 <unfinished ...> [pid 5878] chdir("./10" <unfinished ...> [pid 5875] <... exit_group resumed>) = ? [pid 5878] <... chdir resumed>) = 0 [pid 5875] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=17 /* 0.17 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5878] setpgid(0, 0 <unfinished ...> [pid 5820] <... restart_syscall resumed>) = 0 [pid 5878] <... setpgid resumed>) = 0 [pid 5878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5820] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5878] <... openat resumed>) = 3 [pid 5820] <... openat resumed>) = 3 [pid 5878] write(3, "1000", 4 <unfinished ...> [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5878] <... write resumed>) = 4 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5878] close(3 <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5878] <... close resumed>) = 0 [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5878] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5820] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./9/binderfs") = 0 [pid 5820] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program <unfinished ...> [pid 5878] <... symlink resumed>) = 0 [pid 5878] write(1, "executing program\n", 18) = 18 [pid 5878] memfd_create("syzkaller", 0 <unfinished ...> [pid 5820] <... umount2 resumed>) = 0 [pid 5820] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5878] <... memfd_create resumed>) = 3 [pid 5820] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5878] <... mmap resumed>) = 0x7f976c200000 [pid 5820] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./9/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./9" <unfinished ...> [pid 5877] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5820] <... rmdir resumed>) = 0 [pid 5820] mkdir("./10", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3 <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5879 attached <unfinished ...> [pid 5879] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5876] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5879 [pid 5879] <... set_robust_list resumed>) = 0 [pid 5879] chdir("./10") = 0 [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5879] setpgid(0, 0) = 0 [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5879] write(3, "1000", 4) = 4 [pid 5879] close(3) = 0 [pid 5879] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5879] write(1, "executing program\n", 18) = 18 [pid 5879] memfd_create("syzkaller", 0) = 3 [pid 5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5820] <... close resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5880 attached , child_tidptr=0x5555947bd650) = 5880 [pid 5880] set_robust_list(0x5555947bd660, 24) = 0 [pid 5880] chdir("./10") = 0 [pid 5880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5880] setpgid(0, 0) = 0 executing program [pid 5880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5880] write(3, "1000", 4) = 4 [pid 5880] close(3) = 0 [pid 5880] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5880] write(1, "executing program\n", 18) = 18 [pid 5877] <... write resumed>) = 16777216 [pid 5880] memfd_create("syzkaller", 0 <unfinished ...> [pid 5877] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5880] <... memfd_create resumed>) = 3 [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5877] <... munmap resumed>) = 0 [pid 5877] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5877] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5877] close(3) = 0 [pid 5877] close(4) = 0 [pid 5877] mkdir("./file0", 0777) = 0 [pid 5877] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5877] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5877] chdir("./file0") = 0 [pid 5877] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5877] exit_group(0) = ? [pid 5877] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5877, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=26 /* 0.26 s */} --- [pid 5819] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./9/binderfs") = 0 [pid 5819] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [ 75.896467][ T5877] loop1: detected capacity change from 0 to 32768 [pid 5819] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5878] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, <unfinished ...> [pid 5876] <... write resumed>) = 16777216 [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5876] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] close(4) = 0 [pid 5819] rmdir("./9/file0") = 0 [pid 5819] getdents64(3, <unfinished ...> [pid 5879] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5876] <... munmap resumed>) = 0 [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5876] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5819] close(3) = 0 [pid 5819] rmdir("./9") = 0 [pid 5819] mkdir("./10", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5876] <... openat resumed>) = 4 [pid 5819] close(3 <unfinished ...> [pid 5876] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5876] close(3) = 0 [pid 5876] close(4) = 0 [pid 5876] mkdir("./file0", 0777) = 0 [pid 5876] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5876] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5876] chdir("./file0") = 0 [pid 5876] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 76.031910][ T5876] loop3: detected capacity change from 0 to 32768 [pid 5876] exit_group(0) = ? [pid 5876] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=25 /* 0.25 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./9/binderfs") = 0 [pid 5821] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./9/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./9") = 0 [pid 5821] mkdir("./10", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5880] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5881 ./strace-static-x86_64: Process 5881 attached [pid 5881] set_robust_list(0x5555947bd660, 24) = 0 [pid 5881] chdir("./10") = 0 [pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5881] setpgid(0, 0) = 0 [pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5881] write(3, "1000", 4) = 4 [pid 5881] close(3) = 0 executing program [pid 5881] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5881] write(1, "executing program\n", 18) = 18 [pid 5881] memfd_create("syzkaller", 0) = 3 [pid 5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5821] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5882 ./strace-static-x86_64: Process 5882 attached [pid 5882] set_robust_list(0x5555947bd660, 24) = 0 [pid 5882] chdir("./10") = 0 [pid 5882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5882] setpgid(0, 0) = 0 [pid 5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5882] write(3, "1000", 4) = 4 [pid 5882] close(3) = 0 executing program [pid 5882] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5882] write(1, "executing program\n", 18) = 18 [pid 5882] memfd_create("syzkaller", 0) = 3 [pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5878] <... write resumed>) = 16777216 [pid 5878] munmap(0x7f976c200000, 138412032) = 0 [pid 5878] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5878] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5878] close(3) = 0 [pid 5878] close(4) = 0 [pid 5878] mkdir("./file0", 0777 <unfinished ...> [pid 5879] <... write resumed>) = 16777216 [pid 5878] <... mkdir resumed>) = 0 [pid 5878] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5879] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5878] <... mount resumed>) = 0 [pid 5878] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5878] chdir("./file0") = 0 [pid 5878] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5878] exit_group(0) = ? [pid 5879] <... munmap resumed>) = 0 [pid 5878] +++ exited with 0 +++ [pid 5879] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5878, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=24 /* 0.24 s */} --- [ 76.395166][ T5878] loop0: detected capacity change from 0 to 32768 [pid 5879] <... openat resumed>) = 4 [pid 5818] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5879] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./10/binderfs") = 0 [pid 5818] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5818] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5879] <... ioctl resumed>) = 0 [pid 5879] close(3) = 0 [pid 5879] close(4) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5879] mkdir("./file0", 0777 <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5879] <... mkdir resumed>) = 0 [pid 5818] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5879] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] <... openat resumed>) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./10/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./10") = 0 [ 76.466087][ T5879] loop4: detected capacity change from 0 to 32768 [pid 5818] mkdir("./11", 0777) = 0 [pid 5879] <... mount resumed>) = 0 [pid 5879] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5879] <... openat resumed>) = 3 [pid 5879] chdir("./file0") = 0 [pid 5879] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5818] <... openat resumed>) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5879] exit_group(0 <unfinished ...> [pid 5818] <... ioctl resumed>) = 0 [pid 5879] <... exit_group resumed>) = ? [pid 5818] close(3 <unfinished ...> [pid 5879] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=17 /* 0.17 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./10/binderfs") = 0 [pid 5822] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5822] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./10/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./10") = 0 [pid 5822] mkdir("./11", 0777) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5883 ./strace-static-x86_64: Process 5883 attached [pid 5883] set_robust_list(0x5555947bd660, 24) = 0 [pid 5883] chdir("./11") = 0 [pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5883] setpgid(0, 0) = 0 [pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5883] write(3, "1000", 4) = 4 [pid 5883] close(3) = 0 [pid 5883] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5883] write(1, "executing program\n", 18) = 18 [pid 5883] memfd_create("syzkaller", 0) = 3 [pid 5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5880] <... write resumed>) = 16777216 [pid 5880] munmap(0x7f976c200000, 138412032) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 76.675617][ T5880] loop2: detected capacity change from 0 to 32768 [pid 5880] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5881] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5880] <... ioctl resumed>) = 0 [pid 5880] close(3) = 0 [pid 5880] close(4) = 0 [pid 5880] mkdir("./file0", 0777) = 0 [pid 5880] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5884 attached <unfinished ...> [pid 5884] set_robust_list(0x5555947bd660, 24) = 0 [pid 5884] chdir("./11") = 0 [pid 5884] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5880] <... mount resumed>) = 0 [pid 5884] <... prctl resumed>) = 0 [pid 5884] setpgid(0, 0) = 0 [pid 5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5880] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5884] <... openat resumed>) = 3 [pid 5880] <... openat resumed>) = 3 [pid 5884] write(3, "1000", 4 <unfinished ...> [pid 5880] chdir("./file0" <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5884 executing program [pid 5884] <... write resumed>) = 4 [pid 5880] <... chdir resumed>) = 0 [pid 5884] close(3 <unfinished ...> [pid 5880] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5884] <... close resumed>) = 0 [pid 5884] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5880] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5884] <... symlink resumed>) = 0 [pid 5884] write(1, "executing program\n", 18) = 18 [pid 5880] exit_group(0) = ? [pid 5884] memfd_create("syzkaller", 0) = 3 [pid 5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5880] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5880, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=25 /* 0.25 s */} --- [pid 5820] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./10/binderfs") = 0 [pid 5820] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5820] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./10/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./10") = 0 [pid 5820] mkdir("./11", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5882] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5820] close(3) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5885 attached , child_tidptr=0x5555947bd650) = 5885 [pid 5885] set_robust_list(0x5555947bd660, 24) = 0 [pid 5885] chdir("./11") = 0 [pid 5885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5885] setpgid(0, 0) = 0 [pid 5885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5885] write(3, "1000", 4) = 4 [pid 5885] close(3) = 0 [pid 5885] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5885] write(1, "executing program\n", 18) = 18 [pid 5885] memfd_create("syzkaller", 0) = 3 [pid 5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5881] <... write resumed>) = 16777216 [pid 5881] munmap(0x7f976c200000, 138412032) = 0 [pid 5881] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5881] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5881] close(3) = 0 [pid 5881] close(4) = 0 [pid 5881] mkdir("./file0", 0777) = 0 [pid 5881] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5881] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5881] chdir("./file0") = 0 [ 77.212377][ T5881] loop1: detected capacity change from 0 to 32768 [pid 5881] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5881] exit_group(0) = ? [pid 5881] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=19 /* 0.19 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./10/binderfs") = 0 [pid 5819] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5882] <... write resumed>) = 16777216 [pid 5884] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... umount2 resumed>) = 0 [pid 5882] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5882] <... munmap resumed>) = 0 [pid 5882] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5819] getdents64(4, <unfinished ...> [pid 5882] <... openat resumed>) = 4 [pid 5882] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./10/file0" <unfinished ...> [pid 5885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... rmdir resumed>) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3 <unfinished ...> [pid 5882] <... ioctl resumed>) = 0 [pid 5882] close(3) = 0 [pid 5882] close(4) = 0 [pid 5819] <... close resumed>) = 0 [pid 5819] rmdir("./10" <unfinished ...> [pid 5882] mkdir("./file0", 0777) = 0 [pid 5882] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5819] <... rmdir resumed>) = 0 [pid 5819] mkdir("./11", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [ 77.361813][ T5882] loop3: detected capacity change from 0 to 32768 [pid 5819] close(3 <unfinished ...> [pid 5882] <... mount resumed>) = 0 [pid 5882] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5882] chdir("./file0") = 0 [pid 5882] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5882] exit_group(0) = ? [pid 5882] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5882, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=21 /* 0.21 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./10/binderfs") = 0 [pid 5821] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./10/file0" <unfinished ...> [pid 5883] <... write resumed>) = 16777216 [pid 5821] <... rmdir resumed>) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5883] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./10") = 0 [pid 5821] mkdir("./11", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5883] <... munmap resumed>) = 0 [pid 5819] <... close resumed>) = 0 [pid 5883] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5883] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5886 attached <unfinished ...> [pid 5883] close(3) = 0 [pid 5883] close(4) = 0 [pid 5883] mkdir("./file0", 0777 <unfinished ...> [pid 5886] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5883] <... mkdir resumed>) = 0 [pid 5886] <... set_robust_list resumed>) = 0 [pid 5883] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5886] chdir("./11" <unfinished ...> [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5886 [pid 5886] <... chdir resumed>) = 0 [pid 5886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5886] setpgid(0, 0) = 0 [ 77.669330][ T5883] loop4: detected capacity change from 0 to 32768 [pid 5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5886] write(3, "1000", 4) = 4 [pid 5886] close(3) = 0 [pid 5886] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5886] write(1, "executing program\n", 18executing program ) = 18 [pid 5886] memfd_create("syzkaller", 0 <unfinished ...> [pid 5883] <... mount resumed>) = 0 [pid 5883] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5886] <... memfd_create resumed>) = 3 [pid 5883] chdir("./file0" <unfinished ...> [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5883] <... chdir resumed>) = 0 [pid 5886] <... mmap resumed>) = 0x7f976c200000 [pid 5883] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5884] <... write resumed>) = 16777216 [pid 5883] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5884] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5883] exit_group(0) = ? [pid 5885] <... write resumed>) = 16777216 [pid 5883] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=27 /* 0.27 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5885] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] <... restart_syscall resumed>) = 0 [pid 5822] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./11/binderfs") = 0 [pid 5822] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5884] <... munmap resumed>) = 0 [pid 5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5884] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5822] <... umount2 resumed>) = 0 [pid 5822] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5884] close(3) = 0 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5884] close(4 <unfinished ...> [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5884] <... close resumed>) = 0 [pid 5822] <... openat resumed>) = 4 [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5884] mkdir("./file0", 0777 <unfinished ...> [pid 5885] <... munmap resumed>) = 0 [pid 5884] <... mkdir resumed>) = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 77.776770][ T5884] loop0: detected capacity change from 0 to 32768 [pid 5884] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5822] getdents64(4, <unfinished ...> [pid 5885] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5885] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5885] close(3 <unfinished ...> [pid 5822] rmdir("./11/file0" <unfinished ...> [pid 5885] <... close resumed>) = 0 [pid 5885] close(4) = 0 [pid 5885] mkdir("./file0", 0777) = 0 [pid 5822] <... rmdir resumed>) = 0 [pid 5885] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5822] getdents64(3, <unfinished ...> [pid 5884] <... mount resumed>) = 0 [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5884] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5822] close(3) = 0 [pid 5884] <... openat resumed>) = 3 [pid 5822] rmdir("./11") = 0 [pid 5822] mkdir("./12", 0777) = 0 [pid 5885] <... mount resumed>) = 0 [pid 5885] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5884] chdir("./file0" <unfinished ...> [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5885] chdir("./file0") = 0 [pid 5822] <... openat resumed>) = 3 [pid 5885] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5884] <... chdir resumed>) = 0 [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5885] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] <... ioctl resumed>) = 0 [pid 5885] exit_group(0 <unfinished ...> [pid 5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5822] close(3 <unfinished ...> [pid 5885] <... exit_group resumed>) = ? [pid 5885] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5885, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=12 /* 0.12 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5884] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5884] exit_group(0) = ? [pid 5884] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5884, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5820] <... restart_syscall resumed>) = 0 [pid 5818] <... restart_syscall resumed>) = 0 [pid 5820] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... openat resumed>) = 3 [pid 5818] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5818] <... openat resumed>) = 3 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] newfstatat(3, "", <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] getdents64(3, <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./11/binderfs", <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] unlink("./11/binderfs" <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... unlink resumed>) = 0 [pid 5818] newfstatat(AT_FDCWD, "./11/binderfs", <unfinished ...> [pid 5820] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 77.822467][ T5885] loop2: detected capacity change from 0 to 32768 [pid 5818] unlink("./11/binderfs") = 0 [pid 5818] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5820] <... umount2 resumed>) = 0 [pid 5820] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./11/file0", <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] <... umount2 resumed>) = 0 [pid 5818] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] <... openat resumed>) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] getdents64(4, <unfinished ...> [pid 5820] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4 <unfinished ...> [pid 5820] newfstatat(4, "", <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] rmdir("./11/file0") = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, <unfinished ...> [pid 5818] close(3 <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] rmdir("./11" <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5820] rmdir("./11/file0" <unfinished ...> [pid 5818] <... rmdir resumed>) = 0 [pid 5818] mkdir("./12", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3 <unfinished ...> [pid 5820] <... rmdir resumed>) = 0 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5887 ./strace-static-x86_64: Process 5887 attached [pid 5887] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5887] <... set_robust_list resumed>) = 0 [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5887] chdir("./11") = 0 [pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5887] setpgid(0, 0) = 0 [pid 5820] close(3 <unfinished ...> [pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5887] <... openat resumed>) = 3 [pid 5820] rmdir("./11" <unfinished ...> [pid 5887] write(3, "1000", 4) = 4 [pid 5887] close(3) = 0 [pid 5887] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5887] write(1, "executing program\n", 18) = 18 [pid 5887] memfd_create("syzkaller", 0) = 3 [pid 5887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5820] <... rmdir resumed>) = 0 [pid 5820] mkdir("./12", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3 <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5888 attached <unfinished ...> [pid 5888] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5888 [pid 5888] <... set_robust_list resumed>) = 0 [pid 5888] chdir("./12") = 0 [pid 5820] <... close resumed>) = 0 [pid 5888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5888] setpgid(0, 0 <unfinished ...> [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5889 attached <unfinished ...> [pid 5888] <... setpgid resumed>) = 0 [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5889 [pid 5889] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5889] <... set_robust_list resumed>) = 0 [pid 5888] write(3, "1000", 4 <unfinished ...> [pid 5889] chdir("./12" <unfinished ...> [pid 5888] <... write resumed>) = 4 [pid 5889] <... chdir resumed>) = 0 [pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5888] close(3) = 0 [pid 5889] <... prctl resumed>) = 0 [pid 5888] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5889] setpgid(0, 0 <unfinished ...> [pid 5888] <... symlink resumed>) = 0 [pid 5889] <... setpgid resumed>) = 0 [pid 5888] write(1, "executing program\n", 18executing program <unfinished ...> [pid 5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5888] <... write resumed>) = 18 [pid 5888] memfd_create("syzkaller", 0 <unfinished ...> [pid 5889] <... openat resumed>) = 3 [pid 5888] <... memfd_create resumed>) = 3 [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5889] write(3, "1000", 4 <unfinished ...> [pid 5888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5889] <... write resumed>) = 4 [pid 5889] close(3) = 0 executing program [pid 5889] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5889] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 5890 attached [pid 5889] memfd_create("syzkaller", 0 <unfinished ...> [pid 5888] <... mmap resumed>) = 0x7f976c200000 [pid 5890] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5890 [pid 5890] <... set_robust_list resumed>) = 0 [pid 5889] <... memfd_create resumed>) = 3 [pid 5890] chdir("./12" <unfinished ...> [pid 5889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5890] <... chdir resumed>) = 0 [pid 5889] <... mmap resumed>) = 0x7f976c200000 [pid 5890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5890] setpgid(0, 0) = 0 [pid 5890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5890] write(3, "1000", 4) = 4 [pid 5890] close(3) = 0 [pid 5890] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5890] write(1, "executing program\n", 18) = 18 [pid 5890] memfd_create("syzkaller", 0) = 3 [pid 5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5887] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5886] <... write resumed>) = 16777216 [pid 5886] munmap(0x7f976c200000, 138412032) = 0 [pid 5888] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5886] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5886] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5890] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5889] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5886] <... ioctl resumed>) = 0 [pid 5886] close(3) = 0 [pid 5886] close(4) = 0 [pid 5886] mkdir("./file0", 0777) = 0 [pid 5886] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5886] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5886] chdir("./file0") = 0 [ 78.661188][ T5886] loop1: detected capacity change from 0 to 32768 [pid 5886] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5886] exit_group(0) = ? [pid 5887] <... write resumed>) = 16777216 [pid 5887] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5886] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5886, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=22 /* 0.22 s */} --- [pid 5819] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./11/binderfs") = 0 [pid 5819] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5887] <... munmap resumed>) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./11/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./11") = 0 [pid 5819] mkdir("./12", 0777) = 0 [pid 5887] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5887] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] <... openat resumed>) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5887] <... ioctl resumed>) = 0 [pid 5887] close(3) = 0 [pid 5887] close(4) = 0 [pid 5887] mkdir("./file0", 0777) = 0 [pid 5887] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5887] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5887] chdir("./file0") = 0 [pid 5887] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5887] exit_group(0) = ? [pid 5887] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=22 /* 0.22 s */} --- [ 78.794161][ T5887] loop3: detected capacity change from 0 to 32768 [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./11/binderfs") = 0 [pid 5821] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5821] <... umount2 resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5891 ./strace-static-x86_64: Process 5891 attached [pid 5891] set_robust_list(0x5555947bd660, 24) = 0 [pid 5891] chdir("./12") = 0 [pid 5821] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./11/file0", <unfinished ...> [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5891] <... prctl resumed>) = 0 [pid 5821] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5891] setpgid(0, 0 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5891] <... setpgid resumed>) = 0 [pid 5821] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5821] <... openat resumed>) = 4 [pid 5891] <... openat resumed>) = 3 [pid 5821] newfstatat(4, "", executing program <unfinished ...> [pid 5891] write(3, "1000", 4 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5891] <... write resumed>) = 4 [pid 5821] getdents64(4, <unfinished ...> [pid 5891] close(3) = 0 [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5891] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5821] getdents64(4, <unfinished ...> [pid 5891] <... symlink resumed>) = 0 [pid 5891] write(1, "executing program\n", 18 <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5891] <... write resumed>) = 18 [pid 5891] memfd_create("syzkaller", 0 <unfinished ...> [pid 5821] close(4) = 0 [pid 5891] <... memfd_create resumed>) = 3 [pid 5891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5821] rmdir("./11/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./11") = 0 [pid 5821] mkdir("./12", 0777 <unfinished ...> [pid 5890] <... write resumed>) = 16777216 [pid 5821] <... mkdir resumed>) = 0 [pid 5890] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5889] <... write resumed>) = 16777216 [pid 5889] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5890] <... munmap resumed>) = 0 [pid 5889] <... munmap resumed>) = 0 [pid 5889] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5889] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5890] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5890] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5889] close(3 <unfinished ...> [pid 5888] <... write resumed>) = 16777216 [pid 5890] close(3) = 0 [pid 5889] <... close resumed>) = 0 [pid 5890] close(4 <unfinished ...> [pid 5889] close(4 <unfinished ...> [pid 5890] <... close resumed>) = 0 [pid 5889] <... close resumed>) = 0 [pid 5890] mkdir("./file0", 0777 <unfinished ...> [pid 5889] mkdir("./file0", 0777 <unfinished ...> [pid 5890] <... mkdir resumed>) = 0 [pid 5889] <... mkdir resumed>) = 0 [pid 5889] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5890] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5888] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5889] <... mount resumed>) = 0 [pid 5889] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5889] chdir("./file0") = 0 [pid 5889] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5889] exit_group(0) = ? [pid 5889] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5889, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=21 /* 0.21 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 79.063675][ T5889] loop2: detected capacity change from 0 to 32768 [ 79.074377][ T5890] loop0: detected capacity change from 0 to 32768 [pid 5820] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5890] <... mount resumed>) = 0 [pid 5820] newfstatat(AT_FDCWD, "./12/binderfs", <unfinished ...> [pid 5890] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5890] <... openat resumed>) = 3 [pid 5820] unlink("./12/binderfs" <unfinished ...> [pid 5890] chdir("./file0" <unfinished ...> [pid 5820] <... unlink resumed>) = 0 [pid 5890] <... chdir resumed>) = 0 [pid 5820] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5890] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5890] exit_group(0) = ? [pid 5890] +++ exited with 0 +++ [pid 5888] <... munmap resumed>) = 0 [pid 5820] <... umount2 resumed>) = 0 [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5890, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=26 /* 0.26 s */} --- [pid 5820] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] <... restart_syscall resumed>) = 0 [pid 5820] newfstatat(AT_FDCWD, "./12/file0", <unfinished ...> [pid 5888] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... openat resumed>) = 4 [pid 5818] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] newfstatat(4, "", <unfinished ...> [pid 5818] <... openat resumed>) = 3 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] newfstatat(3, "", <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5888] <... openat resumed>) = 4 [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(3, <unfinished ...> [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5888] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5820] close(4 <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] <... close resumed>) = 0 [pid 5820] rmdir("./12/file0" <unfinished ...> [pid 5818] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... rmdir resumed>) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./12") = 0 [pid 5820] mkdir("./13", 0777) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5818] unlink("./12/binderfs" <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3 <unfinished ...> [pid 5818] <... unlink resumed>) = 0 [pid 5818] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5888] <... ioctl resumed>) = 0 [pid 5888] close(3) = 0 [pid 5888] close(4) = 0 [pid 5888] mkdir("./file0", 0777) = 0 [pid 5888] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5818] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./12/file0") = 0 [pid 5818] getdents64(3, <unfinished ...> [pid 5888] <... mount resumed>) = 0 [pid 5888] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5888] <... openat resumed>) = 3 [ 79.144748][ T5888] loop4: detected capacity change from 0 to 32768 [pid 5888] chdir("./file0") = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./12") = 0 [pid 5818] mkdir("./13", 0777 <unfinished ...> [pid 5888] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5818] <... mkdir resumed>) = 0 [pid 5888] exit_group(0 <unfinished ...> [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5888] <... exit_group resumed>) = ? [pid 5888] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5888, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5818] <... openat resumed>) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3 <unfinished ...> [pid 5822] <... restart_syscall resumed>) = 0 [pid 5822] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./12/binderfs") = 0 [pid 5822] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5822] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] <... close resumed>) = 0 [pid 5822] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5822] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5892 attached [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5892] set_robust_list(0x5555947bd660, 24) = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5892 [pid 5892] chdir("./12" <unfinished ...> [pid 5822] getdents64(4, <unfinished ...> [pid 5892] <... chdir resumed>) = 0 [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5892] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./12/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./12") = 0 [pid 5822] mkdir("./13", 0777 <unfinished ...> [pid 5892] <... prctl resumed>) = 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5892] setpgid(0, 0) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5893 attached <unfinished ...> [pid 5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5893 [pid 5892] <... openat resumed>) = 3 [pid 5893] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5892] write(3, "1000", 4 <unfinished ...> [pid 5893] <... set_robust_list resumed>) = 0 [pid 5893] chdir("./13") = 0 [pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5892] <... write resumed>) = 4 [pid 5893] <... prctl resumed>) = 0 [pid 5892] close(3) = 0 [pid 5892] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5893] setpgid(0, 0 <unfinished ...> [pid 5892] write(1, "executing program\n", 18executing program <unfinished ...> [pid 5893] <... setpgid resumed>) = 0 [pid 5892] <... write resumed>) = 18 [pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5892] memfd_create("syzkaller", 0) = 3 [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5893] <... openat resumed>) = 3 [pid 5892] <... mmap resumed>) = 0x7f976c200000 [pid 5893] write(3, "1000", 4) = 4 [pid 5893] close(3) = 0 [pid 5893] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5893] write(1, "executing program\n", 18executing program ) = 18 [pid 5893] memfd_create("syzkaller", 0) = 3 [pid 5893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5820] <... close resumed>) = 0 [pid 5891] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5894 attached , child_tidptr=0x5555947bd650) = 5894 [pid 5894] set_robust_list(0x5555947bd660, 24) = 0 [pid 5894] chdir("./13") = 0 [pid 5894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5818] <... close resumed>) = 0 executing program [pid 5894] setpgid(0, 0) = 0 [pid 5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5894] write(3, "1000", 4) = 4 [pid 5894] close(3) = 0 [pid 5894] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5894] write(1, "executing program\n", 18) = 18 [pid 5894] memfd_create("syzkaller", 0) = 3 [pid 5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5895 attached , child_tidptr=0x5555947bd650) = 5895 [pid 5895] set_robust_list(0x5555947bd660, 24) = 0 [pid 5895] chdir("./13") = 0 [pid 5895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5895] setpgid(0, 0) = 0 [pid 5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5895] write(3, "1000", 4) = 4 [pid 5895] close(3) = 0 [pid 5895] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5895] write(1, "executing program\n", 18) = 18 [pid 5895] memfd_create("syzkaller", 0) = 3 [pid 5895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5892] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5893] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5891] <... write resumed>) = 16777216 [pid 5891] munmap(0x7f976c200000, 138412032) = 0 [pid 5891] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5891] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5894] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5891] <... ioctl resumed>) = 0 [pid 5891] close(3) = 0 [pid 5891] close(4) = 0 [pid 5891] mkdir("./file0", 0777) = 0 [ 79.855682][ T5891] loop1: detected capacity change from 0 to 32768 [pid 5891] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5891] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5891] chdir("./file0") = 0 [pid 5891] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5891] exit_group(0) = ? [pid 5891] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=24 /* 0.24 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5895] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./12/binderfs") = 0 [pid 5819] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./12/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./12") = 0 [pid 5819] mkdir("./13", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5893] <... write resumed>) = 16777216 [pid 5892] <... write resumed>) = 16777216 [pid 5892] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5893] munmap(0x7f976c200000, 138412032) = 0 [pid 5893] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5892] <... munmap resumed>) = 0 [pid 5893] <... openat resumed>) = 4 [pid 5893] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5892] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5892] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5893] <... ioctl resumed>) = 0 [pid 5893] close(3) = 0 [pid 5893] close(4) = 0 [pid 5892] <... ioctl resumed>) = 0 [pid 5893] mkdir("./file0", 0777) = 0 [pid 5892] close(3) = 0 [pid 5892] close(4 <unfinished ...> [pid 5893] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5892] <... close resumed>) = 0 [pid 5892] mkdir("./file0", 0777) = 0 [pid 5892] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5893] <... mount resumed>) = 0 [pid 5892] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5893] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5892] <... openat resumed>) = 3 [pid 5893] <... openat resumed>) = 3 [pid 5892] chdir("./file0" <unfinished ...> [pid 5893] chdir("./file0") = 0 [pid 5892] <... chdir resumed>) = 0 [pid 5893] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5892] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5893] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 80.100541][ T5893] loop4: detected capacity change from 0 to 32768 [ 80.111804][ T5892] loop3: detected capacity change from 0 to 32768 [pid 5893] exit_group(0 <unfinished ...> [pid 5892] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5893] <... exit_group resumed>) = ? [pid 5893] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5893, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=21 /* 0.21 s */} --- [pid 5822] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5892] exit_group(0 <unfinished ...> [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5892] <... exit_group resumed>) = ? [pid 5822] <... openat resumed>) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5892] +++ exited with 0 +++ [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=17 /* 0.17 s */} --- [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5822] newfstatat(AT_FDCWD, "./13/binderfs", <unfinished ...> [pid 5821] <... restart_syscall resumed>) = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./13/binderfs") = 0 [pid 5821] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] <... umount2 resumed>) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5822] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] newfstatat(AT_FDCWD, "./13/file0", <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./12/binderfs") = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./13/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./13") = 0 [pid 5821] <... umount2 resumed>) = 0 [pid 5821] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, <unfinished ...> [pid 5822] mkdir("./14", 0777 <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] <... close resumed>) = 0 [pid 5821] close(4 <unfinished ...> [pid 5822] <... mkdir resumed>) = 0 [pid 5821] <... close resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5821] rmdir("./12/file0" <unfinished ...> [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5821] <... rmdir resumed>) = 0 [pid 5822] <... ioctl resumed>) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5822] close(3 <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./12"./strace-static-x86_64: Process 5896 attached ) = 0 [pid 5896] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5896 [pid 5896] <... set_robust_list resumed>) = 0 [pid 5896] chdir("./13" <unfinished ...> [pid 5821] mkdir("./13", 0777 <unfinished ...> [pid 5896] <... chdir resumed>) = 0 [pid 5821] <... mkdir resumed>) = 0 [pid 5896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5896] setpgid(0, 0) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5821] <... ioctl resumed>) = 0 [pid 5896] <... openat resumed>) = 3 [pid 5821] close(3 <unfinished ...> [pid 5896] write(3, "1000", 4 <unfinished ...> [pid 5894] <... write resumed>) = 16777216 [pid 5896] <... write resumed>) = 4 [pid 5894] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5896] close(3) = 0 [pid 5894] <... munmap resumed>) = 0 [pid 5896] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5896] write(1, "executing program\n", 18 <unfinished ...> [pid 5894] openat(AT_FDCWD, "/dev/loop2", O_RDWRexecuting program <unfinished ...> [pid 5896] <... write resumed>) = 18 [pid 5894] <... openat resumed>) = 4 [pid 5896] memfd_create("syzkaller", 0 <unfinished ...> [pid 5894] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5896] <... memfd_create resumed>) = 3 [pid 5896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5894] <... ioctl resumed>) = 0 [pid 5894] close(3) = 0 [pid 5894] close(4) = 0 [pid 5894] mkdir("./file0", 0777) = 0 [pid 5894] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5895] <... write resumed>) = 16777216 [ 80.339332][ T5894] loop2: detected capacity change from 0 to 32768 [pid 5895] munmap(0x7f976c200000, 138412032) = 0 [pid 5894] <... mount resumed>) = 0 [pid 5894] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5894] chdir("./file0") = 0 [pid 5894] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5894] exit_group(0) = ? [pid 5894] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5894, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=21 /* 0.21 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5820] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5895] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5895] <... openat resumed>) = 4 [pid 5820] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5895] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5895] <... ioctl resumed>) = 0 [pid 5895] close(3 <unfinished ...> [pid 5820] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5895] <... close resumed>) = 0 [pid 5895] close(4 <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5895] <... close resumed>) = 0 [pid 5822] <... close resumed>) = 0 [pid 5820] newfstatat(AT_FDCWD, "./13/binderfs", <unfinished ...> [pid 5895] mkdir("./file0", 0777 <unfinished ...> [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5895] <... mkdir resumed>) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5895] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5820] unlink("./13/binderfs") = 0 [pid 5820] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5897 attached <unfinished ...> [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5897 [pid 5820] <... umount2 resumed>) = 0 [pid 5820] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./13/file0") = 0 [pid 5820] getdents64(3, <unfinished ...> [pid 5895] <... mount resumed>) = 0 [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3 <unfinished ...> [pid 5897] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5897] <... set_robust_list resumed>) = 0 [pid 5895] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5820] rmdir("./13" <unfinished ...> [pid 5897] chdir("./14" <unfinished ...> [pid 5820] <... rmdir resumed>) = 0 [pid 5897] <... chdir resumed>) = 0 [pid 5820] mkdir("./14", 0777 <unfinished ...> [pid 5895] <... openat resumed>) = 3 [pid 5820] <... mkdir resumed>) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5820] <... openat resumed>) = 3 [pid 5897] <... prctl resumed>) = 0 [ 80.424859][ T5895] loop0: detected capacity change from 0 to 32768 [pid 5895] chdir("./file0" <unfinished ...> [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5897] setpgid(0, 0 <unfinished ...> [pid 5895] <... chdir resumed>) = 0 [pid 5820] <... ioctl resumed>) = 0 [pid 5895] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5820] close(3 <unfinished ...> [pid 5897] <... setpgid resumed>) = 0 [pid 5895] exit_group(0 <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5895] <... exit_group resumed>) = ? [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5898 attached ) = 3 [pid 5898] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5898 [pid 5897] write(3, "1000", 4) = 4 [pid 5897] close(3) = 0 [pid 5898] <... set_robust_list resumed>) = 0 [pid 5897] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5895] +++ exited with 0 +++ [pid 5898] chdir("./13" <unfinished ...> [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5895, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=22 /* 0.22 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5898] <... chdir resumed>) = 0 [pid 5897] <... symlink resumed>) = 0 executing program [pid 5897] write(1, "executing program\n", 18) = 18 [pid 5818] <... restart_syscall resumed>) = 0 [pid 5897] memfd_create("syzkaller", 0) = 3 [pid 5818] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5818] newfstatat(3, "", <unfinished ...> [pid 5897] <... mmap resumed>) = 0x7f976c200000 [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5898] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./13/binderfs" <unfinished ...> [pid 5898] <... prctl resumed>) = 0 [pid 5818] <... unlink resumed>) = 0 [pid 5898] setpgid(0, 0 <unfinished ...> [pid 5818] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5898] <... setpgid resumed>) = 0 [pid 5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5898] write(3, "1000", 4) = 4 [pid 5898] close(3) = 0 [pid 5898] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5898] <... symlink resumed>) = 0 [pid 5818] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5898] write(1, "executing program\n", 18 <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5898] <... write resumed>) = 18 [pid 5818] newfstatat(AT_FDCWD, "./13/file0", <unfinished ...> [pid 5898] memfd_create("syzkaller", 0 <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] <... memfd_create resumed>) = 3 [pid 5818] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5898] <... mmap resumed>) = 0x7f976c200000 [pid 5818] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./13/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./13") = 0 [pid 5820] <... close resumed>) = 0 [pid 5818] mkdir("./14", 0777 <unfinished ...> [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5818] <... mkdir resumed>) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5899 attached <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5899 [pid 5899] set_robust_list(0x5555947bd660, 24) = 0 [pid 5899] chdir("./14") = 0 [pid 5896] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5818] <... openat resumed>) = 3 [pid 5899] <... prctl resumed>) = 0 [pid 5899] setpgid(0, 0) = 0 [pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5899] write(3, "1000", 4) = 4 [pid 5899] close(3 <unfinished ...> [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3 <unfinished ...> [pid 5899] <... close resumed>) = 0 [pid 5899] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5899] write(1, "executing program\n", 18executing program ) = 18 [pid 5899] memfd_create("syzkaller", 0) = 3 [pid 5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5897] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5898] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5900 attached <unfinished ...> [pid 5900] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5900 [pid 5900] <... set_robust_list resumed>) = 0 [pid 5900] chdir("./14") = 0 [pid 5900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5900] setpgid(0, 0) = 0 [pid 5900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "1000", 4) = 4 [pid 5900] close(3) = 0 [pid 5900] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5900] write(1, "executing program\n", 18executing program ) = 18 [pid 5900] memfd_create("syzkaller", 0) = 3 [pid 5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5899] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5896] <... write resumed>) = 16777216 [pid 5896] munmap(0x7f976c200000, 138412032) = 0 [pid 5896] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5896] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5896] close(3) = 0 [pid 5896] close(4) = 0 [pid 5896] mkdir("./file0", 0777) = 0 [ 81.102319][ T5896] loop1: detected capacity change from 0 to 32768 [pid 5896] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5897] <... write resumed>) = 16777216 [pid 5897] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5896] <... mount resumed>) = 0 [pid 5896] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5896] chdir("./file0") = 0 [pid 5896] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5896] exit_group(0) = ? [pid 5896] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5896, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=17 /* 0.17 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5897] <... munmap resumed>) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5897] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5819] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5897] <... openat resumed>) = 4 [pid 5819] <... openat resumed>) = 3 [pid 5819] newfstatat(3, "", <unfinished ...> [pid 5897] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5897] <... ioctl resumed>) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./13/binderfs") = 0 [pid 5819] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5897] close(3) = 0 [pid 5897] close(4) = 0 [pid 5897] mkdir("./file0", 0777) = 0 [pid 5897] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5819] <... umount2 resumed>) = 0 [pid 5819] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5897] <... mount resumed>) = 0 [pid 5897] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5897] chdir("./file0") = 0 [pid 5897] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5897] exit_group(0) = ? [pid 5897] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=21 /* 0.21 s */} --- [pid 5819] getdents64(4, <unfinished ...> [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [ 81.212867][ T5897] loop4: detected capacity change from 0 to 32768 [pid 5819] close(4) = 0 [pid 5822] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] rmdir("./13/file0" <unfinished ...> [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... rmdir resumed>) = 0 [pid 5822] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./13") = 0 [pid 5819] mkdir("./14", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./14/binderfs") = 0 [pid 5822] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5900] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5898] <... write resumed>) = 16777216 [pid 5822] <... umount2 resumed>) = 0 [pid 5822] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5898] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./14/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./14" <unfinished ...> [pid 5898] <... munmap resumed>) = 0 [pid 5822] <... rmdir resumed>) = 0 [pid 5822] mkdir("./15", 0777 <unfinished ...> [pid 5898] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5822] <... mkdir resumed>) = 0 [pid 5898] <... openat resumed>) = 4 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5898] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5898] <... ioctl resumed>) = 0 [pid 5898] close(3 <unfinished ...> [pid 5822] close(3 <unfinished ...> [pid 5898] <... close resumed>) = 0 [pid 5898] close(4 <unfinished ...> [pid 5899] <... write resumed>) = 16777216 [pid 5898] <... close resumed>) = 0 [pid 5898] mkdir("./file0", 0777 <unfinished ...> [pid 5899] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5898] <... mkdir resumed>) = 0 [ 81.405433][ T5898] loop3: detected capacity change from 0 to 32768 [pid 5898] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5899] <... munmap resumed>) = 0 [pid 5899] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5898] <... mount resumed>) = 0 [pid 5898] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5899] <... openat resumed>) = 4 [pid 5898] <... openat resumed>) = 3 [pid 5899] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5898] chdir("./file0") = 0 [pid 5898] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5898] exit_group(0 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5898] <... exit_group resumed>) = ? [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5901 attached <unfinished ...> [pid 5898] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5898, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=25 /* 0.25 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5901] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5821] <... restart_syscall resumed>) = 0 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5901 [pid 5901] <... set_robust_list resumed>) = 0 [pid 5899] <... ioctl resumed>) = 0 [pid 5899] close(3 <unfinished ...> [pid 5821] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5899] <... close resumed>) = 0 [pid 5899] close(4 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5899] <... close resumed>) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./13/binderfs") = 0 [pid 5821] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5901] chdir("./14" <unfinished ...> [pid 5899] mkdir("./file0", 0777 <unfinished ...> [pid 5901] <... chdir resumed>) = 0 [pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5901] setpgid(0, 0 <unfinished ...> [pid 5899] <... mkdir resumed>) = 0 [pid 5901] <... setpgid resumed>) = 0 [pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5821] <... umount2 resumed>) = 0 [pid 5821] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./13/file0", <unfinished ...> [pid 5899] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program ) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5901] <... openat resumed>) = 3 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4 <unfinished ...> [pid 5901] write(3, "1000", 4 <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5901] <... write resumed>) = 4 [pid 5821] rmdir("./13/file0" <unfinished ...> [pid 5901] close(3 <unfinished ...> [pid 5821] <... rmdir resumed>) = 0 [pid 5901] <... close resumed>) = 0 [pid 5901] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5901] write(1, "executing program\n", 18 <unfinished ...> [pid 5821] getdents64(3, <unfinished ...> [pid 5901] <... write resumed>) = 18 [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3 <unfinished ...> [pid 5901] memfd_create("syzkaller", 0 <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5821] rmdir("./13") = 0 [pid 5901] <... memfd_create resumed>) = 3 [pid 5821] mkdir("./14", 0777) = 0 [pid 5901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5901] <... mmap resumed>) = 0x7f976c200000 [pid 5899] <... mount resumed>) = 0 [pid 5899] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5821] <... openat resumed>) = 3 [ 81.524036][ T5899] loop2: detected capacity change from 0 to 32768 [pid 5899] <... openat resumed>) = 3 [pid 5899] chdir("./file0") = 0 [pid 5899] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5899] exit_group(0) = ? [pid 5821] close(3 <unfinished ...> [pid 5899] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5899, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=26 /* 0.26 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5820] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] <... close resumed>) = 0 [pid 5820] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./14/binderfs", <unfinished ...> [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./14/binderfs"./strace-static-x86_64: Process 5902 attached ) = 0 [pid 5902] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5820] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5902] <... set_robust_list resumed>) = 0 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5902 [pid 5902] chdir("./15") = 0 [pid 5902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5902] setpgid(0, 0) = 0 [pid 5902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "1000", 4) = 4 [pid 5902] close(3 <unfinished ...> [pid 5820] <... umount2 resumed>) = 0 [pid 5820] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5902] <... close resumed>) = 0 [pid 5820] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5902] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5902] <... symlink resumed>) = 0 executing program [pid 5820] <... openat resumed>) = 4 [pid 5902] write(1, "executing program\n", 18) = 18 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./14/file0") = 0 [pid 5902] memfd_create("syzkaller", 0 <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5902] <... memfd_create resumed>) = 3 [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./14" <unfinished ...> [pid 5902] <... mmap resumed>) = 0x7f976c200000 [pid 5820] <... rmdir resumed>) = 0 [pid 5820] mkdir("./15", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3 <unfinished ...> [pid 5900] <... write resumed>) = 16777216 [pid 5900] munmap(0x7f976c200000, 138412032) = 0 [pid 5900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5900] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5900] close(3) = 0 [pid 5900] close(4) = 0 [pid 5900] mkdir("./file0", 0777) = 0 [ 81.798878][ T5900] loop0: detected capacity change from 0 to 32768 [pid 5900] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5900] <... mount resumed>) = 0 [pid 5900] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5900] chdir("./file0") = 0 [pid 5900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5903 attached [pid 5900] exit_group(0 <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5903 [pid 5903] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5900] <... exit_group resumed>) = ? [pid 5903] <... set_robust_list resumed>) = 0 [pid 5900] +++ exited with 0 +++ [pid 5903] chdir("./14" <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5900, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=19 /* 0.19 s */} --- [pid 5903] <... chdir resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5903] setpgid(0, 0 <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5904 [pid 5903] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5904 attached [pid 5904] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5904] <... set_robust_list resumed>) = 0 [pid 5904] chdir("./15" <unfinished ...> [pid 5903] <... openat resumed>) = 3 [pid 5902] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5904] <... chdir resumed>) = 0 [pid 5903] write(3, "1000", 4 <unfinished ...> [pid 5818] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5903] <... write resumed>) = 4 [pid 5903] close(3 <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5904] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5903] <... close resumed>) = 0 [pid 5818] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5904] <... prctl resumed>) = 0 [pid 5903] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5904] setpgid(0, 0 <unfinished ...> [pid 5818] <... openat resumed>) = 3 [pid 5904] <... setpgid resumed>) = 0 [pid 5818] newfstatat(3, "", executing program <unfinished ...> [pid 5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5903] <... symlink resumed>) = 0 [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5903] write(1, "executing program\n", 18 <unfinished ...> [pid 5818] getdents64(3, <unfinished ...> [pid 5903] <... write resumed>) = 18 [pid 5904] <... openat resumed>) = 3 [pid 5903] memfd_create("syzkaller", 0 <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5904] write(3, "1000", 4 <unfinished ...> [pid 5903] <... memfd_create resumed>) = 3 [pid 5818] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5904] <... write resumed>) = 4 [pid 5903] <... mmap resumed>) = 0x7f976c200000 [pid 5818] newfstatat(AT_FDCWD, "./14/binderfs", <unfinished ...> [pid 5904] close(3 <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5904] <... close resumed>) = 0 [pid 5818] unlink("./14/binderfs" <unfinished ...> [pid 5904] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5818] <... unlink resumed>) = 0 [pid 5904] <... symlink resumed>) = 0 [pid 5818] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program <unfinished ...> [pid 5904] write(1, "executing program\n", 18) = 18 [pid 5904] memfd_create("syzkaller", 0) = 3 [pid 5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5901] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5818] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./14/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./14") = 0 [pid 5818] mkdir("./15", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [ 82.008397][ T8] cfg80211: failed to load regulatory.db [pid 5818] close(3 <unfinished ...> [pid 5902] <... write resumed>) = 16777216 [pid 5902] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5904] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5903] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5902] <... munmap resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5902] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5901] <... write resumed>) = 16777216 [pid 5901] munmap(0x7f976c200000, 138412032./strace-static-x86_64: Process 5905 attached <unfinished ...> [pid 5902] <... openat resumed>) = 4 [pid 5902] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5905 [pid 5905] set_robust_list(0x5555947bd660, 24) = 0 [pid 5902] <... ioctl resumed>) = 0 [pid 5905] chdir("./15" <unfinished ...> [pid 5902] close(3) = 0 [pid 5905] <... chdir resumed>) = 0 [pid 5902] close(4 <unfinished ...> [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5902] <... close resumed>) = 0 [pid 5901] <... munmap resumed>) = 0 [pid 5905] setpgid(0, 0 <unfinished ...> [pid 5902] mkdir("./file0", 0777 <unfinished ...> [pid 5901] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5902] <... mkdir resumed>) = 0 [pid 5901] <... openat resumed>) = 4 [pid 5905] <... setpgid resumed>) = 0 [pid 5902] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5901] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5902] <... mount resumed>) = 0 [pid 5905] <... openat resumed>) = 3 [pid 5902] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5905] write(3, "1000", 4 <unfinished ...> [pid 5902] <... openat resumed>) = 3 [pid 5905] <... write resumed>) = 4 [pid 5905] close(3 <unfinished ...> [pid 5902] chdir("./file0" <unfinished ...> [pid 5905] <... close resumed>) = 0 [pid 5902] <... chdir resumed>) = 0 [pid 5905] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5902] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5901] <... ioctl resumed>) = 0 [pid 5901] close(3 <unfinished ...> executing program [pid 5905] <... symlink resumed>) = 0 [pid 5902] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5901] <... close resumed>) = 0 [pid 5905] write(1, "executing program\n", 18 <unfinished ...> [pid 5901] close(4 <unfinished ...> [pid 5902] exit_group(0 <unfinished ...> [pid 5905] <... write resumed>) = 18 [pid 5902] <... exit_group resumed>) = ? [pid 5901] <... close resumed>) = 0 [pid 5901] mkdir("./file0", 0777) = 0 [pid 5902] +++ exited with 0 +++ [pid 5905] memfd_create("syzkaller", 0 <unfinished ...> [pid 5901] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5905] <... memfd_create resumed>) = 3 [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5902, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=22 /* 0.22 s */} --- [pid 5905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5905] <... mmap resumed>) = 0x7f976c200000 [pid 5901] <... mount resumed>) = 0 [pid 5901] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5822] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5901] <... openat resumed>) = 3 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] chdir("./file0" <unfinished ...> [pid 5822] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5901] <... chdir resumed>) = 0 [pid 5901] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5901] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] newfstatat(3, "", <unfinished ...> [pid 5901] exit_group(0 <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 82.312373][ T5902] loop4: detected capacity change from 0 to 32768 [ 82.343324][ T5901] loop1: detected capacity change from 0 to 32768 [pid 5901] <... exit_group resumed>) = ? [pid 5901] +++ exited with 0 +++ [pid 5822] getdents64(3, <unfinished ...> [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5901, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=19 /* 0.19 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] <... restart_syscall resumed>) = 0 [pid 5822] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./15/binderfs" <unfinished ...> [pid 5819] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] <... unlink resumed>) = 0 [pid 5819] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./14/binderfs") = 0 [pid 5819] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] <... umount2 resumed>) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./14/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./14") = 0 [pid 5819] mkdir("./15", 0777 <unfinished ...> [pid 5822] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] <... mkdir resumed>) = 0 [pid 5822] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5822] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./15/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./15") = 0 [pid 5822] mkdir("./16", 0777) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3 <unfinished ...> [pid 5903] <... write resumed>) = 16777216 [pid 5903] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5904] <... write resumed>) = 16777216 [pid 5903] <... munmap resumed>) = 0 [pid 5904] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5903] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5903] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5906 attached <unfinished ...> [pid 5904] <... munmap resumed>) = 0 [pid 5903] <... ioctl resumed>) = 0 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5906 [pid 5906] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5903] close(3) = 0 [pid 5903] close(4 <unfinished ...> [pid 5904] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5906] <... set_robust_list resumed>) = 0 [pid 5904] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5906] chdir("./15" <unfinished ...> [pid 5904] <... ioctl resumed>) = 0 [pid 5903] <... close resumed>) = 0 [pid 5906] <... chdir resumed>) = 0 [pid 5903] mkdir("./file0", 0777 <unfinished ...> [pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5906] setpgid(0, 0 <unfinished ...> [pid 5903] <... mkdir resumed>) = 0 [pid 5906] <... setpgid resumed>) = 0 [pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5903] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5906] <... openat resumed>) = 3 [pid 5906] write(3, "1000", 4) = 4 [pid 5906] close(3) = 0 [pid 5906] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5906] write(1, "executing program\n", 18) = 18 [pid 5906] memfd_create("syzkaller", 0) = 3 [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5904] close(3) = 0 [pid 5904] close(4) = 0 [pid 5904] mkdir("./file0", 0777) = 0 [pid 5905] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5903] <... mount resumed>) = 0 [pid 5903] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5903] chdir("./file0" <unfinished ...> [pid 5904] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5903] <... chdir resumed>) = 0 [pid 5903] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 82.681684][ T5903] loop3: detected capacity change from 0 to 32768 [ 82.703365][ T5904] loop2: detected capacity change from 0 to 32768 [pid 5903] exit_group(0) = ? [pid 5903] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=27 /* 0.27 s */} --- [pid 5821] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] <... close resumed>) = 0 [pid 5821] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5821] <... openat resumed>) = 3 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5907 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5907 attached [pid 5904] <... mount resumed>) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5904] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5904] chdir("./file0" <unfinished ...> [pid 5821] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5904] <... chdir resumed>) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5904] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5904] exit_group(0) = ? [pid 5907] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5904] +++ exited with 0 +++ [pid 5907] <... set_robust_list resumed>) = 0 [pid 5821] newfstatat(AT_FDCWD, "./14/binderfs", <unfinished ...> [pid 5907] chdir("./16") = 0 [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5907] setpgid(0, 0) = 0 [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=23 /* 0.23 s */} --- [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5821] unlink("./14/binderfs" <unfinished ...> [pid 5907] write(3, "1000", 4) = 4 [pid 5821] <... unlink resumed>) = 0 [pid 5821] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... restart_syscall resumed>) = 0 [pid 5907] close(3) = 0 [pid 5907] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5907] write(1, "executing program\n", 18 <unfinished ...> [pid 5820] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program <unfinished ...> [pid 5907] <... write resumed>) = 18 [pid 5907] memfd_create("syzkaller", 0 <unfinished ...> [pid 5821] <... umount2 resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5907] <... memfd_create resumed>) = 3 [pid 5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5821] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] newfstatat(AT_FDCWD, "./14/file0", <unfinished ...> [pid 5820] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] unlink("./15/binderfs" <unfinished ...> [pid 5821] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] <... unlink resumed>) = 0 [pid 5821] newfstatat(4, "", <unfinished ...> [pid 5820] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./14/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./14") = 0 [pid 5821] mkdir("./15", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5820] <... umount2 resumed>) = 0 [pid 5821] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5820] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... ioctl resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] close(3 <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./15/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./15") = 0 [pid 5820] mkdir("./16", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3 <unfinished ...> [pid 5906] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5905] <... write resumed>) = 16777216 [pid 5905] munmap(0x7f976c200000, 138412032) = 0 [pid 5905] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5905] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5905] close(3 <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5820] <... close resumed>) = 0 [pid 5905] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5905] close(4) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5905] mkdir("./file0", 0777 <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5908 [pid 5905] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5908 attached [pid 5905] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard"./strace-static-x86_64: Process 5909 attached ) = 0 [pid 5908] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5905] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5908] <... set_robust_list resumed>) = 0 [pid 5905] <... openat resumed>) = 3 [pid 5908] chdir("./15" <unfinished ...> [pid 5905] chdir("./file0" <unfinished ...> [pid 5908] <... chdir resumed>) = 0 [pid 5905] <... chdir resumed>) = 0 [pid 5909] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [ 83.111778][ T5905] loop0: detected capacity change from 0 to 32768 [pid 5905] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5909 [pid 5909] <... set_robust_list resumed>) = 0 [pid 5905] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5909] chdir("./16" <unfinished ...> [pid 5905] exit_group(0 <unfinished ...> [pid 5908] <... prctl resumed>) = 0 [pid 5905] <... exit_group resumed>) = ? [pid 5909] <... chdir resumed>) = 0 [pid 5908] setpgid(0, 0 <unfinished ...> [pid 5909] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5908] <... setpgid resumed>) = 0 [pid 5905] +++ exited with 0 +++ [pid 5909] <... prctl resumed>) = 0 [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=23 /* 0.23 s */} --- [pid 5909] setpgid(0, 0 <unfinished ...> [pid 5818] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5909] <... setpgid resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5908] <... openat resumed>) = 3 [pid 5818] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5908] write(3, "1000", 4 <unfinished ...> [pid 5818] <... openat resumed>) = 3 [pid 5908] <... write resumed>) = 4 [pid 5818] newfstatat(3, "", <unfinished ...> [pid 5908] close(3 <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5908] <... close resumed>) = 0 [pid 5818] getdents64(3, <unfinished ...> executing program [pid 5908] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5908] <... symlink resumed>) = 0 [pid 5818] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5908] write(1, "executing program\n", 18 <unfinished ...> [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5908] <... write resumed>) = 18 [pid 5818] newfstatat(AT_FDCWD, "./15/binderfs", <unfinished ...> [pid 5908] memfd_create("syzkaller", 0 <unfinished ...> [pid 5818] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5908] <... memfd_create resumed>) = 3 [pid 5907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] unlink("./15/binderfs" <unfinished ...> [pid 5909] <... openat resumed>) = 3 [pid 5908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5818] <... unlink resumed>) = 0 [pid 5909] write(3, "1000", 4 <unfinished ...> [pid 5818] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5909] <... write resumed>) = 4 [pid 5908] <... mmap resumed>) = 0x7f976c200000 [pid 5909] close(3 <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5909] <... close resumed>) = 0 [pid 5909] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5818] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> executing program [pid 5909] write(1, "executing program\n", 18) = 18 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./15/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./15") = 0 [pid 5818] mkdir("./16", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5910 attached , child_tidptr=0x5555947bd650) = 5910 [pid 5910] set_robust_list(0x5555947bd660, 24) = 0 [pid 5910] chdir("./16") = 0 [pid 5910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5910] setpgid(0, 0 <unfinished ...> [pid 5909] memfd_create("syzkaller", 0) = 3 [pid 5910] <... setpgid resumed>) = 0 [pid 5910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program <unfinished ...> [pid 5910] write(3, "1000", 4 <unfinished ...> [pid 5909] <... mmap resumed>) = 0x7f976c200000 [pid 5910] <... write resumed>) = 4 [pid 5910] close(3) = 0 [pid 5910] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5910] write(1, "executing program\n", 18) = 18 [pid 5910] memfd_create("syzkaller", 0) = 3 [pid 5910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5906] <... write resumed>) = 16777216 [pid 5906] munmap(0x7f976c200000, 138412032) = 0 [pid 5906] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5906] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5906] close(3) = 0 [pid 5906] close(4) = 0 [pid 5906] mkdir("./file0", 0777) = 0 [ 83.373934][ T5906] loop1: detected capacity change from 0 to 32768 [pid 5906] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5906] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5906] chdir("./file0") = 0 [pid 5906] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5906] exit_group(0) = ? [pid 5906] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5906, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=19 /* 0.19 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./15/binderfs") = 0 [pid 5819] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./15/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./15") = 0 [pid 5819] mkdir("./16", 0777) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5909] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5907] <... write resumed>) = 16777216 [pid 5907] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5908] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5907] <... munmap resumed>) = 0 [pid 5907] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5907] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5907] close(3) = 0 [pid 5907] close(4) = 0 [pid 5907] mkdir("./file0", 0777) = 0 [ 83.665549][ T5907] loop4: detected capacity change from 0 to 32768 [pid 5907] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5907] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5907] chdir("./file0") = 0 [pid 5907] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5907] exit_group(0) = ? [pid 5907] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=22 /* 0.22 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./16/binderfs") = 0 [pid 5822] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5822] <... umount2 resumed>) = 0 [pid 5822] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./16/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./16") = 0 ./strace-static-x86_64: Process 5911 attached [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5911 [pid 5911] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5822] mkdir("./17", 0777 <unfinished ...> [pid 5911] <... set_robust_list resumed>) = 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5911] chdir("./16") = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3 <unfinished ...> [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5911] setpgid(0, 0) = 0 [pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5911] write(3, "1000", 4) = 4 [pid 5911] close(3) = 0 [pid 5911] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5911] write(1, "executing program\n", 18) = 18 [pid 5911] memfd_create("syzkaller", 0) = 3 [pid 5911] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5909] <... write resumed>) = 16777216 [pid 5909] munmap(0x7f976c200000, 138412032) = 0 [pid 5909] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5909] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5909] close(3 <unfinished ...> [pid 5910] <... write resumed>) = 16777216 [pid 5910] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5909] <... close resumed>) = 0 [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5909] close(4./strace-static-x86_64: Process 5912 attached ) = 0 [pid 5908] <... write resumed>) = 16777216 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5912 [pid 5912] set_robust_list(0x5555947bd660, 24 <unfinished ...> [ 83.995751][ T5909] loop2: detected capacity change from 0 to 32768 [pid 5909] mkdir("./file0", 0777 <unfinished ...> [pid 5912] <... set_robust_list resumed>) = 0 [pid 5909] <... mkdir resumed>) = 0 [pid 5908] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5912] chdir("./17" <unfinished ...> [pid 5910] <... munmap resumed>) = 0 [pid 5909] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5912] <... chdir resumed>) = 0 [pid 5912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5912] setpgid(0, 0) = 0 [pid 5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5912] write(3, "1000", 4 <unfinished ...> [pid 5909] <... mount resumed>) = 0 [pid 5910] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5912] <... write resumed>) = 4 [pid 5910] <... openat resumed>) = 4 [pid 5909] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5910] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5912] close(3 <unfinished ...> [pid 5909] <... openat resumed>) = 3 [pid 5912] <... close resumed>) = 0 [pid 5912] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5912] write(1, "executing program\n", 18) = 18 [pid 5912] memfd_create("syzkaller", 0) = 3 [pid 5912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5909] chdir("./file0") = 0 [pid 5909] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5909] exit_group(0 <unfinished ...> [pid 5908] <... munmap resumed>) = 0 [pid 5909] <... exit_group resumed>) = ? [pid 5909] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5909, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=21 /* 0.21 s */} --- [pid 5910] <... ioctl resumed>) = 0 [pid 5908] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5910] close(3 <unfinished ...> [pid 5908] <... openat resumed>) = 4 [pid 5910] <... close resumed>) = 0 [pid 5908] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5820] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5910] close(4 <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./16/binderfs") = 0 [pid 5820] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5910] <... close resumed>) = 0 [pid 5910] mkdir("./file0", 0777) = 0 [pid 5910] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5908] <... ioctl resumed>) = 0 [pid 5820] <... umount2 resumed>) = 0 [pid 5908] close(3 <unfinished ...> [pid 5820] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5908] <... close resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5908] close(4 <unfinished ...> [ 84.072394][ T5910] loop0: detected capacity change from 0 to 32768 [ 84.111429][ T5908] loop3: detected capacity change from 0 to 32768 [pid 5820] newfstatat(AT_FDCWD, "./16/file0", <unfinished ...> [pid 5910] <... mount resumed>) = 0 [pid 5908] <... close resumed>) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5908] mkdir("./file0", 0777 <unfinished ...> [pid 5820] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5908] <... mkdir resumed>) = 0 [pid 5820] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5908] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5910] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5820] close(4) = 0 [pid 5820] rmdir("./16/file0" <unfinished ...> [pid 5910] <... openat resumed>) = 3 [pid 5820] <... rmdir resumed>) = 0 [pid 5910] chdir("./file0" <unfinished ...> [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3 <unfinished ...> [pid 5908] <... mount resumed>) = 0 [pid 5820] <... close resumed>) = 0 [pid 5908] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5908] chdir("./file0") = 0 [pid 5908] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5908] exit_group(0) = ? [pid 5908] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5908, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=20 /* 0.20 s */} --- [pid 5820] rmdir("./16" <unfinished ...> [pid 5821] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5910] <... chdir resumed>) = 0 [pid 5820] <... rmdir resumed>) = 0 [pid 5910] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5821] <... restart_syscall resumed>) = 0 [pid 5820] mkdir("./17", 0777 <unfinished ...> [pid 5910] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5820] <... mkdir resumed>) = 0 [pid 5910] exit_group(0) = ? [pid 5821] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5910] +++ exited with 0 +++ [pid 5821] <... openat resumed>) = 3 [pid 5820] <... openat resumed>) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5910, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=17 /* 0.17 s */} --- [pid 5821] getdents64(3, <unfinished ...> [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5818] <... restart_syscall resumed>) = 0 [pid 5820] <... ioctl resumed>) = 0 [pid 5821] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] close(3 <unfinished ...> [pid 5818] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./15/binderfs", <unfinished ...> [pid 5818] getdents64(3, <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./16/binderfs") = 0 [pid 5818] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] unlink("./15/binderfs") = 0 [pid 5821] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5821] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] <... umount2 resumed>) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./15/file0", <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5818] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] <... openat resumed>) = 4 [pid 5821] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5818] newfstatat(4, "", <unfinished ...> [pid 5821] <... openat resumed>) = 4 [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] newfstatat(4, "", <unfinished ...> [pid 5818] getdents64(4, <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./16/file0") = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5911] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5821] close(4 <unfinished ...> [pid 5818] getdents64(3, <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] rmdir("./15/file0") = 0 [pid 5818] close(3) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5818] rmdir("./16" <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] <... rmdir resumed>) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./15") = 0 [pid 5818] mkdir("./17", 0777) = 0 [pid 5821] mkdir("./16", 0777 <unfinished ...> [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5821] <... mkdir resumed>) = 0 [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5818] <... ioctl resumed>) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5818] close(3 <unfinished ...> [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5913 attached , child_tidptr=0x5555947bd650) = 5913 [pid 5913] set_robust_list(0x5555947bd660, 24) = 0 [pid 5913] chdir("./17") = 0 [pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5913] setpgid(0, 0) = 0 [pid 5913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5913] write(3, "1000", 4) = 4 [pid 5913] close(3) = 0 [pid 5913] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5912] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5913] write(1, "executing program\n", 18executing program ) = 18 [pid 5913] memfd_create("syzkaller", 0) = 3 [pid 5913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5914 attached <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5914 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5915 [pid 5914] set_robust_list(0x5555947bd660, 24) = 0 ./strace-static-x86_64: Process 5915 attached [pid 5915] set_robust_list(0x5555947bd660, 24) = 0 [pid 5915] chdir("./16") = 0 [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5915] setpgid(0, 0) = 0 [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5915] write(3, "1000", 4) = 4 [pid 5915] close(3) = 0 [pid 5915] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5915] write(1, "executing program\n", 18) = 18 [pid 5915] memfd_create("syzkaller", 0) = 3 [pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5914] chdir("./17") = 0 [pid 5914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5914] setpgid(0, 0) = 0 [pid 5914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5914] write(3, "1000", 4) = 4 [pid 5914] close(3) = 0 [pid 5914] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5914] write(1, "executing program\n", 18) = 18 [pid 5914] memfd_create("syzkaller", 0) = 3 [pid 5914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5911] <... write resumed>) = 16777216 [pid 5911] munmap(0x7f976c200000, 138412032) = 0 [pid 5911] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5911] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5911] close(3) = 0 [pid 5911] close(4) = 0 [pid 5911] mkdir("./file0", 0777) = 0 [ 84.667112][ T5911] loop1: detected capacity change from 0 to 32768 [pid 5911] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5911] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5911] chdir("./file0") = 0 [pid 5911] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5911] exit_group(0) = ? [pid 5911] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=27 /* 0.27 s */} --- [pid 5819] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./16/binderfs") = 0 [pid 5819] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5912] <... write resumed>) = 16777216 [pid 5819] <... umount2 resumed>) = 0 [pid 5819] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5912] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./16/file0") = 0 [pid 5915] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./16") = 0 [pid 5819] mkdir("./17", 0777) = 0 [pid 5912] <... munmap resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD) = 0 [pid 5819] close(3 <unfinished ...> [pid 5912] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5912] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5912] close(3) = 0 [pid 5912] close(4) = 0 [pid 5912] mkdir("./file0", 0777) = 0 [pid 5912] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5912] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5912] chdir("./file0") = 0 [pid 5912] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5912] exit_group(0) = ? [pid 5912] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5912, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=24 /* 0.24 s */} --- [ 84.868187][ T5912] loop4: detected capacity change from 0 to 32768 [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./17/binderfs") = 0 [pid 5822] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5822] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./17/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./17") = 0 [pid 5822] mkdir("./18", 0777) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5916 ./strace-static-x86_64: Process 5916 attached [pid 5916] set_robust_list(0x5555947bd660, 24) = 0 [pid 5916] chdir("./18") = 0 [pid 5916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5916] setpgid(0, 0 <unfinished ...> [pid 5914] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5916] <... setpgid resumed>) = 0 [pid 5916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5916] write(3, "1000", 4) = 4 [pid 5916] close(3) = 0 [pid 5916] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5916] write(1, "executing program\n", 18) = 18 [pid 5916] memfd_create("syzkaller", 0) = 3 [pid 5916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5819] <... close resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5917 ./strace-static-x86_64: Process 5917 attached [pid 5917] set_robust_list(0x5555947bd660, 24) = 0 [pid 5917] chdir("./17") = 0 [pid 5913] <... write resumed>) = 16777216 [pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5917] setpgid(0, 0) = 0 [pid 5913] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5917] write(3, "1000", 4) = 4 [pid 5917] close(3) = 0 [pid 5915] <... write resumed>) = 16777216 [pid 5913] <... munmap resumed>) = 0 [pid 5917] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5915] munmap(0x7f976c200000, 138412032executing program <unfinished ...> [pid 5917] write(1, "executing program\n", 18 <unfinished ...> [pid 5913] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5917] <... write resumed>) = 18 [pid 5917] memfd_create("syzkaller", 0 <unfinished ...> [pid 5913] <... openat resumed>) = 4 [pid 5913] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5917] <... memfd_create resumed>) = 3 [pid 5915] <... munmap resumed>) = 0 [pid 5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5913] <... ioctl resumed>) = 0 [pid 5915] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5915] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5913] close(3) = 0 [pid 5913] close(4) = 0 [pid 5913] mkdir("./file0", 0777) = 0 [pid 5913] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5915] <... ioctl resumed>) = 0 [pid 5915] close(3) = 0 [ 85.243242][ T5913] loop2: detected capacity change from 0 to 32768 [ 85.250596][ T5915] loop3: detected capacity change from 0 to 32768 [pid 5915] close(4) = 0 [pid 5913] <... mount resumed>) = 0 [pid 5913] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5913] chdir("./file0" <unfinished ...> [pid 5915] mkdir("./file0", 0777 <unfinished ...> [pid 5913] <... chdir resumed>) = 0 [pid 5913] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5915] <... mkdir resumed>) = 0 [pid 5913] exit_group(0) = ? [pid 5913] +++ exited with 0 +++ [pid 5915] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5913, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=24 /* 0.24 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5915] <... mount resumed>) = 0 [pid 5915] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5820] <... restart_syscall resumed>) = 0 [pid 5915] <... openat resumed>) = 3 [pid 5820] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5915] chdir("./file0" <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5915] <... chdir resumed>) = 0 [pid 5820] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5915] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5915] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5915] exit_group(0 <unfinished ...> [pid 5820] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5915] <... exit_group resumed>) = ? [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5915] +++ exited with 0 +++ [pid 5820] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=22 /* 0.22 s */} --- [pid 5820] unlink("./17/binderfs" <unfinished ...> [pid 5821] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... unlink resumed>) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] <... umount2 resumed>) = 0 [pid 5821] newfstatat(3, "", <unfinished ...> [pid 5820] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] getdents64(3, <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./17/file0", <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./16/binderfs", <unfinished ...> [pid 5820] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] <... openat resumed>) = 4 [pid 5821] unlink("./16/binderfs" <unfinished ...> [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, <unfinished ...> [pid 5821] <... unlink resumed>) = 0 [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./17/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./17") = 0 [pid 5820] mkdir("./18", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5821] <... umount2 resumed>) = 0 [pid 5820] <... ioctl resumed>) = 0 [pid 5821] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] close(3 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./16/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./16") = 0 [pid 5821] mkdir("./17", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5914] <... write resumed>) = 16777216 [pid 5914] munmap(0x7f976c200000, 138412032) = 0 [pid 5914] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5914] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5916] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5914] <... ioctl resumed>) = 0 [pid 5914] close(3) = 0 [pid 5914] close(4) = 0 [pid 5914] mkdir("./file0", 0777) = 0 [pid 5914] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [ 85.481133][ T5914] loop0: detected capacity change from 0 to 32768 [pid 5914] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5914] chdir("./file0") = 0 [pid 5914] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5914] exit_group(0) = ? [pid 5914] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5914, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=20 /* 0.20 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5818] <... restart_syscall resumed>) = 0 [pid 5818] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./17/binderfs") = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5818] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5918 ./strace-static-x86_64: Process 5918 attached [pid 5918] set_robust_list(0x5555947bd660, 24) = 0 [pid 5918] chdir("./18") = 0 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5918] setpgid(0, 0) = 0 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5918] write(3, "1000", 4) = 4 [pid 5918] close(3) = 0 [pid 5918] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5918] write(1, "executing program\n", 18) = 18 [pid 5918] memfd_create("syzkaller", 0) = 3 [pid 5918] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5818] <... umount2 resumed>) = 0 [pid 5818] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5818] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, ./strace-static-x86_64: Process 5919 attached 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./17/file0" <unfinished ...> [pid 5919] set_robust_list(0x5555947bd660, 24) = 0 [pid 5919] chdir("./17" <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5919 [pid 5818] <... rmdir resumed>) = 0 [pid 5919] <... chdir resumed>) = 0 [pid 5818] getdents64(3, <unfinished ...> [pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5818] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5919] <... prctl resumed>) = 0 [pid 5818] close(3 <unfinished ...> [pid 5919] setpgid(0, 0 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5919] <... setpgid resumed>) = 0 [pid 5818] rmdir("./17" <unfinished ...> [pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5818] <... rmdir resumed>) = 0 [pid 5919] <... openat resumed>) = 3 [pid 5818] mkdir("./18", 0777 <unfinished ...> [pid 5919] write(3, "1000", 4) = 4 [pid 5919] close(3 <unfinished ...> [pid 5818] <... mkdir resumed>) = 0 [pid 5919] <... close resumed>) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5919] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5818] <... ioctl resumed>) = 0 [pid 5919] <... symlink resumed>) = 0 [pid 5818] close(3executing program <unfinished ...> [pid 5917] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5919] write(1, "executing program\n", 18) = 18 [pid 5919] memfd_create("syzkaller", 0) = 3 [pid 5919] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5920 attached <unfinished ...> [pid 5920] set_robust_list(0x5555947bd660, 24) = 0 [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5920 [pid 5920] chdir("./18") = 0 [pid 5920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5920] setpgid(0, 0) = 0 [pid 5920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5920] write(3, "1000", 4) = 4 [pid 5920] close(3) = 0 [pid 5920] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5920] write(1, "executing program\n", 18) = 18 [pid 5920] memfd_create("syzkaller", 0 <unfinished ...> [pid 5916] <... write resumed>) = 16777216 [pid 5920] <... memfd_create resumed>) = 3 [pid 5920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5916] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5918] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5916] <... munmap resumed>) = 0 [pid 5916] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5916] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5916] close(3) = 0 [pid 5916] close(4) = 0 [pid 5916] mkdir("./file0", 0777) = 0 [pid 5916] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5916] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5916] chdir("./file0") = 0 [pid 5916] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5916] exit_group(0) = ? [pid 5916] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5916, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=22 /* 0.22 s */} --- [ 85.925784][ T5916] loop4: detected capacity change from 0 to 32768 [pid 5822] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./18/binderfs") = 0 [pid 5822] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5822] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5917] <... write resumed>) = 16777216 [pid 5822] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./18/file0") = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5919] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5917] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] rmdir("./18") = 0 [pid 5822] mkdir("./19", 0777) = 0 [pid 5917] <... munmap resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5917] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5822] close(3 <unfinished ...> [pid 5917] <... openat resumed>) = 4 [pid 5917] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5917] close(3) = 0 [pid 5917] close(4) = 0 [ 86.144476][ T5917] loop1: detected capacity change from 0 to 32768 [pid 5917] mkdir("./file0", 0777) = 0 [pid 5917] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5917] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5917] chdir("./file0") = 0 [pid 5917] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5917] exit_group(0) = ? [pid 5917] +++ exited with 0 +++ [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=27 /* 0.27 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5819] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5819] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./17/binderfs") = 0 [pid 5819] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5819] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./17/file0", <unfinished ...> [pid 5920] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./17/file0") = 0 [pid 5819] getdents64(3, <unfinished ...> [pid 5918] <... write resumed>) = 16777216 [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5918] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] close(3) = 0 [pid 5819] rmdir("./17") = 0 [pid 5819] mkdir("./18", 0777) = 0 [pid 5918] <... munmap resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5918] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5819] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5918] <... openat resumed>) = 4 [pid 5918] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5819] <... ioctl resumed>) = 0 [pid 5819] close(3 <unfinished ...> [pid 5918] close(3) = 0 [pid 5918] close(4) = 0 [pid 5918] mkdir("./file0", 0777) = 0 [ 86.323315][ T5918] loop2: detected capacity change from 0 to 32768 [pid 5918] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5918] <... mount resumed>) = 0 [pid 5918] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5918] chdir("./file0"./strace-static-x86_64: Process 5921 attached ) = 0 [pid 5918] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5918] exit_group(0) = ? [pid 5918] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5918, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=20 /* 0.20 s */} --- [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5921] set_robust_list(0x5555947bd660, 24) = 0 [pid 5921] chdir("./19") = 0 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5921 [pid 5921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5921] setpgid(0, 0) = 0 [pid 5921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5921] write(3, "1000", 4) = 4 [pid 5921] close(3) = 0 [pid 5921] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5921] write(1, "executing program\n", 18) = 18 executing program [pid 5921] memfd_create("syzkaller", 0) = 3 [pid 5921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5820] <... restart_syscall resumed>) = 0 [pid 5820] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5820] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./18/binderfs") = 0 [pid 5820] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5820] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./18/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3) = 0 [pid 5820] rmdir("./18") = 0 [pid 5820] mkdir("./19", 0777) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5820] ioctl(3, LOOP_CLR_FD) = 0 [pid 5820] close(3) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5922 attached , child_tidptr=0x5555947bd650) = 5922 [pid 5922] set_robust_list(0x5555947bd660, 24) = 0 [pid 5922] chdir("./19") = 0 [pid 5922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5922] setpgid(0, 0) = 0 [pid 5922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5922] write(3, "1000", 4) = 4 [pid 5922] close(3) = 0 [pid 5922] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5922] write(1, "executing program\n", 18) = 18 [pid 5922] memfd_create("syzkaller", 0) = 3 [pid 5919] <... write resumed>) = 16777216 [pid 5922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5919] munmap(0x7f976c200000, 138412032) = 0 [pid 5919] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5919] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5919] close(3) = 0 [pid 5919] close(4 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5919] <... close resumed>) = 0 [pid 5919] mkdir("./file0", 0777 <unfinished ...> [pid 5920] <... write resumed>) = 16777216 [pid 5919] <... mkdir resumed>) = 0 [pid 5919] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5920] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5923 attached <unfinished ...> [pid 5923] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5919] <... mount resumed>) = 0 [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5923 [pid 5923] <... set_robust_list resumed>) = 0 [pid 5919] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5923] chdir("./18" <unfinished ...> [pid 5919] <... openat resumed>) = 3 [ 86.551294][ T5919] loop3: detected capacity change from 0 to 32768 [pid 5919] chdir("./file0") = 0 [pid 5923] <... chdir resumed>) = 0 [pid 5919] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5919] exit_group(0) = ? [pid 5923] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5920] <... munmap resumed>) = 0 [pid 5919] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5919, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=20 /* 0.20 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5923] <... prctl resumed>) = 0 [pid 5923] setpgid(0, 0 <unfinished ...> [pid 5821] <... restart_syscall resumed>) = 0 [pid 5923] <... setpgid resumed>) = 0 [pid 5821] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5821] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", <unfinished ...> [pid 5923] <... openat resumed>) = 3 [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5920] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] <... openat resumed>) = 4 [pid 5821] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./17/binderfs") = 0 [pid 5821] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5920] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5923] write(3, "1000", 4) = 4 [pid 5923] close(3) = 0 [pid 5923] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5920] <... ioctl resumed>) = 0 executing program [pid 5923] write(1, "executing program\n", 18 <unfinished ...> [pid 5920] close(3 <unfinished ...> [pid 5821] <... umount2 resumed>) = 0 [pid 5920] <... close resumed>) = 0 [pid 5821] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5920] close(4 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] <... close resumed>) = 0 [pid 5821] newfstatat(AT_FDCWD, "./17/file0", <unfinished ...> [pid 5920] mkdir("./file0", 0777 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5920] <... mkdir resumed>) = 0 [pid 5821] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5920] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5923] <... write resumed>) = 18 [pid 5821] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5821] newfstatat(4, "", <unfinished ...> [pid 5923] memfd_create("syzkaller", 0 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./17/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./17") = 0 [pid 5821] mkdir("./18", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3) = 0 [pid 5923] <... memfd_create resumed>) = 3 [ 86.629320][ T5920] loop0: detected capacity change from 0 to 32768 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5924 attached <unfinished ...> [pid 5923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5924 [pid 5923] <... mmap resumed>) = 0x7f976c200000 [pid 5924] set_robust_list(0x5555947bd660, 24) = 0 [pid 5924] chdir("./18") = 0 [pid 5924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5924] setpgid(0, 0) = 0 [pid 5924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5920] <... mount resumed>) = 0 [pid 5924] write(3, "1000", 4 <unfinished ...> [pid 5920] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5924] <... write resumed>) = 4 [pid 5924] close(3) = 0 [pid 5924] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5920] <... openat resumed>) = 3 executing program [pid 5924] write(1, "executing program\n", 18 <unfinished ...> [pid 5920] chdir("./file0" <unfinished ...> [pid 5924] <... write resumed>) = 18 [pid 5924] memfd_create("syzkaller", 0) = 3 [pid 5920] <... chdir resumed>) = 0 [pid 5924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5920] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5924] <... mmap resumed>) = 0x7f976c200000 [pid 5920] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5920] exit_group(0) = ? [pid 5920] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5920, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=18 /* 0.18 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5818] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./18/binderfs") = 0 [pid 5818] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5818] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./18/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./18") = 0 [pid 5818] mkdir("./19", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5925 attached , child_tidptr=0x5555947bd650) = 5925 [pid 5925] set_robust_list(0x5555947bd660, 24) = 0 [pid 5925] chdir("./19") = 0 [pid 5925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 5925] setpgid(0, 0) = 0 [pid 5925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5925] write(3, "1000", 4) = 4 [pid 5925] close(3) = 0 [pid 5925] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5925] write(1, "executing program\n", 18) = 18 [pid 5925] memfd_create("syzkaller", 0) = 3 [pid 5925] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5921] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5922] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5923] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5924] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5925] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5921] <... write resumed>) = 16777216 [pid 5921] munmap(0x7f976c200000, 138412032) = 0 [pid 5921] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5921] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5922] <... write resumed>) = 16777216 [pid 5921] close(3) = 0 [pid 5921] close(4) = 0 [pid 5921] mkdir("./file0", 0777) = 0 [pid 5921] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5922] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5921] <... mount resumed>) = 0 [pid 5921] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5921] chdir("./file0") = 0 [pid 5921] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5921] exit_group(0) = ? [pid 5921] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5921, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=26 /* 0.26 s */} --- [pid 5822] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5922] <... munmap resumed>) = 0 [ 87.356692][ T5921] loop4: detected capacity change from 0 to 32768 [pid 5822] getdents64(3, <unfinished ...> [pid 5922] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5922] <... openat resumed>) = 4 [pid 5922] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./19/binderfs" <unfinished ...> [pid 5922] <... ioctl resumed>) = 0 [pid 5922] close(3) = 0 [pid 5822] <... unlink resumed>) = 0 [pid 5922] close(4) = 0 [pid 5822] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5922] mkdir("./file0", 0777) = 0 [ 87.428942][ T5922] loop2: detected capacity change from 0 to 32768 [pid 5922] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5822] <... umount2 resumed>) = 0 [pid 5822] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5922] <... mount resumed>) = 0 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5922] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5822] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5922] <... openat resumed>) = 3 [pid 5822] <... openat resumed>) = 4 [pid 5922] chdir("./file0" <unfinished ...> [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5922] <... chdir resumed>) = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5922] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5922] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] getdents64(4, <unfinished ...> [pid 5922] exit_group(0 <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4 <unfinished ...> [pid 5924] <... write resumed>) = 16777216 [pid 5922] <... exit_group resumed>) = ? [pid 5822] <... close resumed>) = 0 [pid 5923] <... write resumed>) = 16777216 [pid 5822] rmdir("./19/file0" <unfinished ...> [pid 5922] +++ exited with 0 +++ [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5922, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=24 /* 0.24 s */} --- [pid 5822] <... rmdir resumed>) = 0 [pid 5923] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5924] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] getdents64(3, <unfinished ...> [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3 <unfinished ...> [pid 5820] <... restart_syscall resumed>) = 0 [pid 5822] <... close resumed>) = 0 [pid 5822] rmdir("./19" <unfinished ...> [pid 5820] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5822] <... rmdir resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] mkdir("./20", 0777 <unfinished ...> [pid 5820] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5822] <... mkdir resumed>) = 0 [pid 5820] <... openat resumed>) = 3 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5822] <... ioctl resumed>) = 0 [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5923] <... munmap resumed>) = 0 [pid 5822] close(3 <unfinished ...> [pid 5820] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5924] <... munmap resumed>) = 0 [pid 5923] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./19/binderfs", <unfinished ...> [pid 5923] <... openat resumed>) = 4 [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] unlink("./19/binderfs" <unfinished ...> [pid 5923] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5924] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5820] <... unlink resumed>) = 0 [pid 5820] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5924] <... openat resumed>) = 4 [pid 5924] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5923] <... ioctl resumed>) = 0 [pid 5923] close(3) = 0 [pid 5923] close(4) = 0 [pid 5923] mkdir("./file0", 0777 <unfinished ...> [pid 5924] <... ioctl resumed>) = 0 [pid 5923] <... mkdir resumed>) = 0 [pid 5924] close(3 <unfinished ...> [pid 5923] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5924] <... close resumed>) = 0 [pid 5924] close(4) = 0 [pid 5924] mkdir("./file0", 0777) = 0 [pid 5820] <... umount2 resumed>) = 0 [pid 5924] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5820] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5820] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] close(4) = 0 [pid 5820] rmdir("./19/file0") = 0 [pid 5820] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] close(3 <unfinished ...> [pid 5923] <... mount resumed>) = 0 [pid 5923] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5923] <... openat resumed>) = 3 [pid 5820] rmdir("./19" <unfinished ...> [pid 5923] chdir("./file0") = 0 [pid 5820] <... rmdir resumed>) = 0 [ 87.599995][ T5923] loop1: detected capacity change from 0 to 32768 [ 87.610019][ T5924] loop3: detected capacity change from 0 to 32768 [pid 5923] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5924] <... mount resumed>) = 0 [pid 5923] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5820] mkdir("./20", 0777) = 0 [pid 5924] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5923] exit_group(0 <unfinished ...> [pid 5924] <... openat resumed>) = 3 [pid 5923] <... exit_group resumed>) = ? [pid 5924] chdir("./file0" <unfinished ...> [pid 5925] <... write resumed>) = 16777216 [pid 5924] <... chdir resumed>) = 0 [pid 5923] +++ exited with 0 +++ [pid 5924] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5923, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=18 /* 0.18 s */} --- [pid 5819] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5925] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5819] <... restart_syscall resumed>) = 0 [pid 5820] <... ioctl resumed>) = 0 [pid 5820] close(3 <unfinished ...> [pid 5819] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5924] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] <... close resumed>) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5924] exit_group(0 <unfinished ...> [pid 5819] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5924] <... exit_group resumed>) = ? [pid 5819] <... openat resumed>) = 3 [pid 5924] +++ exited with 0 +++ [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5819] newfstatat(3, "", <unfinished ...> [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5924, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=22 /* 0.22 s */} --- ./strace-static-x86_64: Process 5926 attached [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5926] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5925] <... munmap resumed>) = 0 [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5926 [pid 5819] getdents64(3, <unfinished ...> [pid 5926] <... set_robust_list resumed>) = 0 [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5926] chdir("./20" <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] unlink("./18/binderfs" <unfinished ...> [pid 5926] <... chdir resumed>) = 0 [pid 5819] <... unlink resumed>) = 0 [pid 5819] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5926] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5821] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5926] <... prctl resumed>) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5926] setpgid(0, 0 <unfinished ...> [pid 5821] <... openat resumed>) = 3 [pid 5926] <... setpgid resumed>) = 0 [pid 5821] newfstatat(3, "", <unfinished ...> [pid 5926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5926] <... openat resumed>) = 3 [pid 5821] getdents64(3, <unfinished ...> [pid 5926] write(3, "1000", 4 <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5926] <... write resumed>) = 4 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... umount2 resumed>) = 0 [pid 5926] close(3 <unfinished ...> [pid 5821] newfstatat(AT_FDCWD, "./18/binderfs", <unfinished ...> [pid 5819] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] unlink("./18/binderfs" <unfinished ...> [pid 5819] newfstatat(AT_FDCWD, "./18/file0", <unfinished ...> [pid 5821] <... unlink resumed>) = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5819] newfstatat(4, "", <unfinished ...> [pid 5926] <... close resumed>) = 0 executing program [pid 5926] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] getdents64(4, <unfinished ...> [pid 5926] <... symlink resumed>) = 0 [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5926] write(1, "executing program\n", 18 <unfinished ...> [pid 5819] getdents64(4, <unfinished ...> [pid 5926] <... write resumed>) = 18 [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./18/file0" <unfinished ...> [pid 5926] memfd_create("syzkaller", 0 <unfinished ...> [pid 5925] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5819] <... rmdir resumed>) = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3) = 0 [pid 5819] rmdir("./18") = 0 [pid 5926] <... memfd_create resumed>) = 3 [pid 5926] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5925] <... openat resumed>) = 4 [pid 5819] mkdir("./19", 0777 <unfinished ...> [pid 5926] <... mmap resumed>) = 0x7f976c200000 [pid 5925] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5819] <... mkdir resumed>) = 0 [pid 5821] <... umount2 resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5819] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5821] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./18/file0", <unfinished ...> [pid 5819] <... ioctl resumed>) = 0 [pid 5819] close(3 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5925] <... ioctl resumed>) = 0 [pid 5925] close(3) = 0 [pid 5925] close(4 <unfinished ...> [pid 5821] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5925] <... close resumed>) = 0 [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 87.760561][ T5925] loop0: detected capacity change from 0 to 32768 [pid 5821] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5925] mkdir("./file0", 0777 <unfinished ...> [pid 5821] <... openat resumed>) = 4 [pid 5821] newfstatat(4, "", <unfinished ...> [pid 5925] <... mkdir resumed>) = 0 [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5925] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5821] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] close(4) = 0 [pid 5821] rmdir("./18/file0") = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] close(3) = 0 [pid 5821] rmdir("./18") = 0 [pid 5821] mkdir("./19", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3 <unfinished ...> [pid 5925] <... mount resumed>) = 0 [pid 5925] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5925] chdir("./file0") = 0 [pid 5925] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5820] <... close resumed>) = 0 [pid 5925] exit_group(0 <unfinished ...> [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5925] <... exit_group resumed>) = ? [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5927 ./strace-static-x86_64: Process 5927 attached [pid 5925] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5925, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=26 /* 0.26 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5927] set_robust_list(0x5555947bd660, 24) = 0 [pid 5818] <... restart_syscall resumed>) = 0 [pid 5927] chdir("./20" <unfinished ...> [pid 5818] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./19/binderfs") = 0 [pid 5818] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5927] <... chdir resumed>) = 0 [pid 5927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5818] <... umount2 resumed>) = 0 [pid 5927] setpgid(0, 0) = 0 [pid 5927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5818] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5927] <... openat resumed>) = 3 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./19/file0", <unfinished ...> [pid 5927] write(3, "1000", 4) = 4 [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5927] close(3 <unfinished ...> [pid 5818] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5927] <... close resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5927] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5818] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5927] write(1, "executing program\n", 18) = 18 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5927] memfd_create("syzkaller", 0 <unfinished ...> [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5927] <... memfd_create resumed>) = 3 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./19/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3 <unfinished ...> [pid 5927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] rmdir("./19" <unfinished ...> [pid 5927] <... mmap resumed>) = 0x7f976c200000 [pid 5818] <... rmdir resumed>) = 0 [pid 5821] <... close resumed>) = 0 [pid 5819] <... close resumed>) = 0 [pid 5818] mkdir("./20", 0777 <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5818] <... mkdir resumed>) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ./strace-static-x86_64: Process 5928 attached [pid 5818] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5928] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5928 [pid 5818] <... ioctl resumed>) = 0 [pid 5928] <... set_robust_list resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5818] close(3./strace-static-x86_64: Process 5929 attached <unfinished ...> [pid 5928] chdir("./19") = 0 [pid 5929] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5928] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5929] <... set_robust_list resumed>) = 0 [pid 5928] <... prctl resumed>) = 0 [pid 5928] setpgid(0, 0 <unfinished ...> [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5929 [pid 5929] chdir("./19" <unfinished ...> [pid 5928] <... setpgid resumed>) = 0 [pid 5929] <... chdir resumed>) = 0 [pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5929] <... prctl resumed>) = 0 [pid 5929] setpgid(0, 0 <unfinished ...> [pid 5928] <... openat resumed>) = 3 [pid 5929] <... setpgid resumed>) = 0 [pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5928] write(3, "1000", 4 <unfinished ...> [pid 5926] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5928] <... write resumed>) = 4 [pid 5929] <... openat resumed>) = 3 [pid 5928] close(3 <unfinished ...> [pid 5929] write(3, "1000", 4 <unfinished ...> [pid 5928] <... close resumed>) = 0 [pid 5929] <... write resumed>) = 4 [pid 5928] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5929] close(3 <unfinished ...> [pid 5928] <... symlink resumed>) = 0 [pid 5929] <... close resumed>) = 0 [pid 5928] write(1, "executing program\n", 18executing program <unfinished ...> [pid 5929] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5928] <... write resumed>) = 18 [pid 5928] memfd_create("syzkaller", 0 <unfinished ...> [pid 5929] <... symlink resumed>) = 0 [pid 5928] <... memfd_create resumed>) = 3 [pid 5928] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5929] write(1, "executing program\n", 18executing program ) = 18 [pid 5929] memfd_create("syzkaller", 0) = 3 [pid 5929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555947bd650) = 5930 ./strace-static-x86_64: Process 5930 attached [pid 5930] set_robust_list(0x5555947bd660, 24) = 0 [pid 5930] chdir("./20") = 0 [pid 5930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5930] setpgid(0, 0) = 0 [pid 5930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5930] write(3, "1000", 4) = 4 [pid 5930] close(3) = 0 [pid 5930] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5930] write(1, "executing program\n", 18executing program ) = 18 [pid 5930] memfd_create("syzkaller", 0) = 3 [pid 5930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5927] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5926] <... write resumed>) = 16777216 [pid 5929] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5926] munmap(0x7f976c200000, 138412032) = 0 [pid 5928] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5926] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5926] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5926] close(3) = 0 [pid 5926] close(4) = 0 [pid 5926] mkdir("./file0", 0777) = 0 [ 88.482958][ T5926] loop4: detected capacity change from 0 to 32768 [pid 5926] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5926] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5926] chdir("./file0") = 0 [pid 5926] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5926] exit_group(0) = ? [pid 5926] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5926, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=22 /* 0.22 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./20/binderfs") = 0 [pid 5822] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5822] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5927] <... write resumed>) = 16777216 [pid 5822] newfstatat(4, "", <unfinished ...> [pid 5930] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5927] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./20/file0") = 0 [pid 5927] <... munmap resumed>) = 0 [pid 5929] <... write resumed>) = 16777216 [pid 5822] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3 <unfinished ...> [pid 5927] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5927] <... openat resumed>) = 4 [pid 5822] rmdir("./20" <unfinished ...> [pid 5927] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5929] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5927] <... ioctl resumed>) = 0 [pid 5822] <... rmdir resumed>) = 0 [pid 5928] <... write resumed>) = 16777216 [pid 5927] close(3 <unfinished ...> [pid 5822] mkdir("./21", 0777) = 0 [pid 5928] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5927] <... close resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...> [pid 5929] <... munmap resumed>) = 0 [pid 5927] close(4 <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5927] <... close resumed>) = 0 [pid 5927] mkdir("./file0", 0777 <unfinished ...> [pid 5822] <... ioctl resumed>) = 0 [pid 5929] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5927] <... mkdir resumed>) = 0 [pid 5822] close(3 <unfinished ...> [pid 5929] <... openat resumed>) = 4 [ 88.712326][ T5927] loop2: detected capacity change from 0 to 32768 [pid 5929] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5928] <... munmap resumed>) = 0 [pid 5927] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5928] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 88.762472][ T5929] loop1: detected capacity change from 0 to 32768 [pid 5928] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5929] close(3) = 0 [pid 5929] close(4) = 0 [pid 5929] mkdir("./file0", 0777) = 0 [pid 5929] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5929] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5929] chdir("./file0") = 0 [pid 5929] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5929] exit_group(0) = ? [pid 5929] +++ exited with 0 +++ [pid 5928] <... ioctl resumed>) = 0 [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5929, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=19 /* 0.19 s */} --- [pid 5928] close(3 <unfinished ...> [pid 5819] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5928] <... close resumed>) = 0 [pid 5819] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 88.807947][ T5928] loop3: detected capacity change from 0 to 32768 [pid 5819] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5928] close(4 <unfinished ...> [pid 5927] <... mount resumed>) = 0 [pid 5819] <... openat resumed>) = 3 [pid 5928] <... close resumed>) = 0 [pid 5927] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5819] newfstatat(3, "", <unfinished ...> [pid 5928] mkdir("./file0", 0777 <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5928] <... mkdir resumed>) = 0 [pid 5927] <... openat resumed>) = 3 [pid 5819] getdents64(3, <unfinished ...> [pid 5928] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5927] chdir("./file0" <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5927] <... chdir resumed>) = 0 [pid 5819] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5927] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5927] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5819] newfstatat(AT_FDCWD, "./19/binderfs", <unfinished ...> [pid 5927] exit_group(0 <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5928] <... mount resumed>) = 0 [pid 5928] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5927] <... exit_group resumed>) = ? [pid 5819] unlink("./19/binderfs" <unfinished ...> [pid 5928] <... openat resumed>) = 3 [pid 5927] +++ exited with 0 +++ [pid 5819] <... unlink resumed>) = 0 [pid 5928] chdir("./file0" <unfinished ...> [pid 5819] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5928] <... chdir resumed>) = 0 [pid 5928] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5927, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=20 /* 0.20 s */} --- [pid 5928] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5820] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5928] exit_group(0 <unfinished ...> [pid 5822] <... close resumed>) = 0 [pid 5928] <... exit_group resumed>) = ? [pid 5928] +++ exited with 0 +++ [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] <... restart_syscall resumed>) = 0 [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5928, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=24 /* 0.24 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...> <unfinished ...> [pid 5820] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5931 attached <unfinished ...> [pid 5821] <... restart_syscall resumed>) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... umount2 resumed>) = 0 [pid 5820] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5931] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5822] <... clone resumed>, child_tidptr=0x5555947bd650) = 5931 [pid 5820] <... openat resumed>) = 3 [pid 5819] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5931] <... set_robust_list resumed>) = 0 [pid 5821] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] newfstatat(3, "", <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5931] chdir("./21" <unfinished ...> [pid 5821] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] newfstatat(AT_FDCWD, "./19/file0", <unfinished ...> [pid 5821] <... openat resumed>) = 3 [pid 5931] <... chdir resumed>) = 0 [pid 5821] newfstatat(3, "", <unfinished ...> [pid 5820] getdents64(3, <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5931] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5820] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5931] <... prctl resumed>) = 0 [pid 5821] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5931] setpgid(0, 0 <unfinished ...> [pid 5821] newfstatat(AT_FDCWD, "./19/binderfs", <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./20/binderfs", <unfinished ...> [pid 5819] <... openat resumed>) = 4 [pid 5931] <... setpgid resumed>) = 0 [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] newfstatat(4, "", <unfinished ...> [pid 5821] unlink("./19/binderfs" <unfinished ...> [pid 5820] unlink("./20/binderfs" <unfinished ...> [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5821] <... unlink resumed>) = 0 [pid 5820] <... unlink resumed>) = 0 [pid 5819] getdents64(4, <unfinished ...> [pid 5821] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5819] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5819] close(4) = 0 [pid 5819] rmdir("./19/file0") = 0 [pid 5819] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5819] close(3 <unfinished ...> [pid 5931] <... openat resumed>) = 3 [pid 5819] <... close resumed>) = 0 [pid 5819] rmdir("./19") = 0 [pid 5931] write(3, "1000", 4 <unfinished ...> [pid 5819] mkdir("./20", 0777 <unfinished ...> [pid 5931] <... write resumed>) = 4 [pid 5819] <... mkdir resumed>) = 0 [pid 5931] close(3 <unfinished ...> [pid 5821] <... umount2 resumed>) = 0 [pid 5820] <... umount2 resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5931] <... close resumed>) = 0 [pid 5821] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5819] <... openat resumed>) = 3 [pid 5931] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5931] <... symlink resumed>) = 0 [pid 5821] newfstatat(AT_FDCWD, "./19/file0", <unfinished ...> [pid 5819] <... ioctl resumed>) = 0 [pid 5931] write(1, "executing program\n", 18 <unfinished ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5819] close(3 <unfinished ...> [pid 5931] <... write resumed>) = 18 [pid 5930] <... write resumed>) = 16777216 [pid 5821] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5820] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5931] memfd_create("syzkaller", 0 <unfinished ...> [pid 5930] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5820] newfstatat(AT_FDCWD, "./20/file0", <unfinished ...> [pid 5821] <... openat resumed>) = 4 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] newfstatat(4, "", <unfinished ...> [pid 5820] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5931] <... memfd_create resumed>) = 3 [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5931] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> [pid 5821] getdents64(4, <unfinished ...> [pid 5820] newfstatat(4, "", <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5931] <... mmap resumed>) = 0x7f976c200000 [pid 5821] getdents64(4, <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5821] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5821] close(4 <unfinished ...> [pid 5820] getdents64(4, <unfinished ...> [pid 5821] <... close resumed>) = 0 [pid 5820] <... getdents64 resumed>0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5821] rmdir("./19/file0" <unfinished ...> [pid 5820] close(4 <unfinished ...> [pid 5821] <... rmdir resumed>) = 0 [pid 5820] <... close resumed>) = 0 [pid 5820] rmdir("./20/file0" <unfinished ...> [pid 5821] getdents64(3, <unfinished ...> [pid 5820] <... rmdir resumed>) = 0 [pid 5821] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5820] getdents64(3, <unfinished ...> [pid 5821] close(3 <unfinished ...> [pid 5820] <... getdents64 resumed>0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5821] <... close resumed>) = 0 [pid 5820] close(3 <unfinished ...> [pid 5821] rmdir("./19" <unfinished ...> [pid 5820] <... close resumed>) = 0 [pid 5930] <... munmap resumed>) = 0 [pid 5821] <... rmdir resumed>) = 0 [pid 5820] rmdir("./20" <unfinished ...> [pid 5821] mkdir("./20", 0777 <unfinished ...> [pid 5820] <... rmdir resumed>) = 0 [pid 5821] <... mkdir resumed>) = 0 [pid 5820] mkdir("./21", 0777) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5821] ioctl(3, LOOP_CLR_FD) = 0 [pid 5821] close(3) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...> [pid 5820] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5932 attached [pid 5820] ioctl(3, LOOP_CLR_FD <unfinished ...> [pid 5932] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5820] <... ioctl resumed>) = 0 [pid 5932] <... set_robust_list resumed>) = 0 [pid 5820] close(3 <unfinished ...> [pid 5932] chdir("./20" <unfinished ...> [pid 5930] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5821] <... clone resumed>, child_tidptr=0x5555947bd650) = 5932 [pid 5932] <... chdir resumed>) = 0 [pid 5932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5932] setpgid(0, 0) = 0 executing program [pid 5932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...> [pid 5930] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5932] <... openat resumed>) = 3 [pid 5932] write(3, "1000", 4) = 4 [pid 5932] close(3) = 0 [pid 5932] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5932] write(1, "executing program\n", 18) = 18 [pid 5932] memfd_create("syzkaller", 0) = 3 [pid 5932] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5930] <... ioctl resumed>) = 0 [pid 5930] close(3) = 0 [pid 5930] close(4) = 0 [pid 5930] mkdir("./file0", 0777) = 0 [ 89.021247][ T5930] loop0: detected capacity change from 0 to 32768 [pid 5930] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard") = 0 [pid 5930] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5930] chdir("./file0") = 0 [pid 5930] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5930] exit_group(0) = ? [pid 5930] +++ exited with 0 +++ [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5930, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=28 /* 0.28 s */} --- [pid 5818] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5818] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5818] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] unlink("./20/binderfs") = 0 [pid 5818] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5818] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] newfstatat(AT_FDCWD, "./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5818] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5818] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5818] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(4, 0x5555947c6730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(4, 0x5555947c6730 /* 0 entries */, 32768) = 0 [pid 5818] close(4) = 0 [pid 5818] rmdir("./20/file0") = 0 [pid 5818] getdents64(3, 0x5555947be6f0 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [pid 5818] rmdir("./20") = 0 [pid 5818] mkdir("./21", 0777) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5818] ioctl(3, LOOP_CLR_FD) = 0 [pid 5818] close(3 <unfinished ...> [pid 5819] <... close resumed>) = 0 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5933 attached <unfinished ...> [pid 5933] set_robust_list(0x5555947bd660, 24 <unfinished ...> [pid 5819] <... clone resumed>, child_tidptr=0x5555947bd650) = 5933 [pid 5933] <... set_robust_list resumed>) = 0 [pid 5933] chdir("./20") = 0 [pid 5933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5933] setpgid(0, 0) = 0 [pid 5933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5820] <... close resumed>) = 0 [pid 5933] write(3, "1000", 4) = 4 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5934 attached <unfinished ...> [pid 5934] set_robust_list(0x5555947bd660, 24) = 0 [pid 5934] chdir("./21") = 0 [pid 5934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5934] setpgid(0, 0) = 0 [pid 5934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5934] write(3, "1000", 4 <unfinished ...> [pid 5820] <... clone resumed>, child_tidptr=0x5555947bd650) = 5934 [pid 5934] <... write resumed>) = 4 [pid 5933] close(3 <unfinished ...> [pid 5934] close(3 <unfinished ...> [pid 5933] <... close resumed>) = 0 executing program [pid 5934] <... close resumed>) = 0 [pid 5933] symlink("/dev/binderfs", "./binderfs" <unfinished ...> [pid 5934] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5933] <... symlink resumed>) = 0 [pid 5934] write(1, "executing program\n", 18) = 18 [pid 5934] memfd_create("syzkaller", 0) = 3 [pid 5934] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 executing program [pid 5933] write(1, "executing program\n", 18) = 18 [pid 5933] memfd_create("syzkaller", 0) = 3 [pid 5933] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5932] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5931] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5818] <... close resumed>) = 0 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5935 attached <unfinished ...> [pid 5935] set_robust_list(0x5555947bd660, 24) = 0 [pid 5935] chdir("./21") = 0 [pid 5935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5935] setpgid(0, 0) = 0 [pid 5935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5935] write(3, "1000", 4) = 4 [pid 5935] close(3) = 0 [pid 5935] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5935] write(1, "executing program\n", 18 <unfinished ...> [pid 5818] <... clone resumed>, child_tidptr=0x5555947bd650) = 5935 [pid 5935] <... write resumed>) = 18 [pid 5935] memfd_create("syzkaller", 0) = 3 [pid 5935] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f976c200000 [pid 5934] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5933] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5935] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...> [pid 5931] <... write resumed>) = 16777216 [pid 5932] <... write resumed>) = 16777216 [pid 5931] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5932] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5931] <... munmap resumed>) = 0 [pid 5931] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5931] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5932] <... munmap resumed>) = 0 [pid 5931] <... ioctl resumed>) = 0 [pid 5932] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5931] close(3) = 0 [pid 5932] <... openat resumed>) = 4 [pid 5931] close(4) = 0 [pid 5932] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5931] mkdir("./file0", 0777 <unfinished ...> [pid 5932] <... ioctl resumed>) = 0 [pid 5931] <... mkdir resumed>) = 0 [pid 5931] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5932] close(3) = 0 [pid 5932] close(4) = 0 [pid 5932] mkdir("./file0", 0777) = 0 [pid 5932] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5931] <... mount resumed>) = 0 [pid 5931] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5931] chdir("./file0") = 0 [pid 5931] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5931] exit_group(0) = ? [pid 5931] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5931, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=19 /* 0.19 s */} --- [ 89.855890][ T5931] loop4: detected capacity change from 0 to 32768 [ 89.872364][ T5932] loop3: detected capacity change from 0 to 32768 [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5932] <... mount resumed>) = 0 [pid 5822] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...> [pid 5932] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...> [pid 5822] <... openat resumed>) = 3 [pid 5932] <... openat resumed>) = 3 [pid 5822] newfstatat(3, "", <unfinished ...> [pid 5932] chdir("./file0") = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5932] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...> [pid 5822] getdents64(3, <unfinished ...> [pid 5932] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] <... getdents64 resumed>0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5932] exit_group(0 <unfinished ...> [pid 5822] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5932] <... exit_group resumed>) = ? [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./21/binderfs") = 0 [pid 5822] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5932] +++ exited with 0 +++ [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5932, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=22 /* 0.22 s */} --- [pid 5821] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5821] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] getdents64(3, 0x5555947be6f0 /* 4 entries */, 32768) = 112 [pid 5821] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] unlink("./20/binderfs") = 0 [ 89.977547][ T5821] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI [ 89.990183][ T5821] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 89.998636][ T5821] CPU: 0 UID: 0 PID: 5821 Comm: syz-executor300 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0 [ 90.009760][ T5821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 90.019848][ T5821] RIP: 0010:lmLogSync+0x228/0xae0 [pid 5821] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...> [pid 5935] <... write resumed>) = 16777216 [pid 5934] <... write resumed>) = 16777216 [pid 5933] <... write resumed>) = 16777216 [pid 5935] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5934] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5933] munmap(0x7f976c200000, 138412032 <unfinished ...> [pid 5934] <... munmap resumed>) = 0 [pid 5933] <... munmap resumed>) = 0 [pid 5935] <... munmap resumed>) = 0 [pid 5934] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...> [ 90.024926][ T5821] Code: a7 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 16 cf d2 fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 f9 ce d2 fe 48 8b 3b e8 81 11 a7 [ 90.044561][ T5821] RSP: 0018:ffffc90003effa40 EFLAGS: 00010206 [ 90.050657][ T5821] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff8880333b5a00 [ 90.058652][ T5821] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.066642][ T5821] RBP: ffffc90003effb48 R08: ffffffff81d78c5e R09: 0000000000000000 [pid 5935] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...> [pid 5934] <... openat resumed>) = 4 [pid 5933] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...> [pid 5935] <... openat resumed>) = 4 [pid 5934] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5933] <... openat resumed>) = 4 [pid 5935] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5933] ioctl(4, LOOP_SET_FD, 3 <unfinished ...> [pid 5934] <... ioctl resumed>) = 0 [pid 5934] close(3) = 0 [pid 5934] close(4) = 0 [pid 5934] mkdir("./file0", 0777) = 0 [ 90.074626][ T5821] R10: ffffc90003eff828 R11: fffff520007dff34 R12: ffff8880275f1000 [ 90.077998][ T5934] loop2: detected capacity change from 0 to 32768 [ 90.082582][ T5821] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880222c9038 [ 90.082599][ T5821] FS: 00005555947bd380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 90.082613][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.082625][ T5821] CR2: 00007ffed9b50fb8 CR3: 0000000079790000 CR4: 00000000003526f0 [pid 5934] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5935] <... ioctl resumed>) = 0 [pid 5933] <... ioctl resumed>) = 0 [ 90.082640][ T5821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.082651][ T5821] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.089597][ T5935] loop0: detected capacity change from 0 to 32768 [ 90.096990][ T5821] Call Trace: [ 90.097000][ T5821] <TASK> [ 90.097007][ T5821] ? __die_body+0x5f/0xb0 [ 90.097029][ T5821] ? die_addr+0xb0/0xe0 [ 90.097045][ T5821] ? exc_general_protection+0x3dd/0x5d0 [ 90.106414][ T5933] loop1: detected capacity change from 0 to 32768 [ 90.112522][ T5821] ? asm_exc_general_protection+0x26/0x30 [ 90.112553][ T5821] ? filemap_flush+0x17e/0x260 [ 90.180105][ T5821] ? lmLogSync+0x228/0xae0 [ 90.184555][ T5821] ? __pfx_lmLogSync+0x10/0x10 [ 90.189351][ T5821] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 90.195262][ T5821] jfs_syncpt+0x7d/0xa0 [ 90.199411][ T5821] jfs_sync_fs+0x8a/0xa0 [ 90.203647][ T5821] sync_filesystem+0xed/0x230 [ 90.208312][ T5821] generic_shutdown_super+0x72/0x2d0 [ 90.213585][ T5821] kill_block_super+0x44/0x90 [ 90.218250][ T5821] deactivate_locked_super+0xc4/0x130 [ 90.223606][ T5821] cleanup_mnt+0x41f/0x4b0 [ 90.228004][ T5821] ? lockdep_hardirqs_on+0x99/0x150 [ 90.233188][ T5821] task_work_run+0x24f/0x310 [ 90.237763][ T5821] ? __pfx_task_work_run+0x10/0x10 [ 90.242857][ T5821] ? path_umount+0x284/0xf70 [ 90.247461][ T5821] ptrace_notify+0x2d2/0x380 [ 90.252038][ T5821] ? __pfx_ptrace_notify+0x10/0x10 [ 90.257136][ T5821] ? kmem_cache_free+0x195/0x410 [ 90.262058][ T5821] ? __x64_sys_umount+0x123/0x170 [ 90.267068][ T5821] syscall_exit_work+0xc7/0x1d0 [ 90.271903][ T5821] syscall_exit_to_user_mode+0x24a/0x340 [ 90.277546][ T5821] do_syscall_64+0x100/0x230 [ 90.282123][ T5821] ? clear_bhb_loop+0x35/0x90 [ 90.286785][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.292668][ T5821] RIP: 0033:0x7f97747db4b7 [ 90.297075][ T5821] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 90.316666][ T5821] RSP: 002b:00007ffed9b51188 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [pid 5933] close(3) = 0 [pid 5935] close(3 <unfinished ...> [pid 5933] close(4 <unfinished ...> [pid 5935] <... close resumed>) = 0 [pid 5933] <... close resumed>) = 0 [pid 5935] close(4 <unfinished ...> [pid 5933] mkdir("./file0", 0777 <unfinished ...> [pid 5935] <... close resumed>) = 0 [pid 5933] <... mkdir resumed>) = 0 [pid 5935] mkdir("./file0", 0777 <unfinished ...> [pid 5933] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" <unfinished ...> [pid 5935] <... mkdir resumed>) = 0 [ 90.325088][ T5821] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f97747db4b7 [ 90.333045][ T5821] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffed9b51240 [ 90.341007][ T5821] RBP: 00007ffed9b51240 R08: 0000000000000000 R09: 0000000000000000 [ 90.348966][ T5821] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffed9b522a0 [ 90.356937][ T5821] R13: 00005555947be6c0 R14: 0000000000000015 R15: 431bde82d7b634db [ 90.364896][ T5821] </TASK> [ 90.367894][ T5821] Modules linked in: [ 90.372218][ T5821] ---[ end trace 0000000000000000 ]--- [ 90.379386][ T5821] RIP: 0010:lmLogSync+0x228/0xae0 [ 90.384481][ T5821] Code: a7 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 16 cf d2 fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 f9 ce d2 fe 48 8b 3b e8 81 11 a7 [ 90.404227][ T5821] RSP: 0018:ffffc90003effa40 EFLAGS: 00010206 [ 90.410307][ T5821] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff8880333b5a00 [ 90.418319][ T5821] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.426419][ T5821] RBP: ffffc90003effb48 R08: ffffffff81d78c5e R09: 0000000000000000 [ 90.434428][ T5821] R10: ffffc90003eff828 R11: fffff520007dff34 R12: ffff8880275f1000 [ 90.442461][ T5821] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880222c9038 [ 90.450423][ T5821] FS: 00005555947bd380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 90.459379][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.466009][ T5821] CR2: 00007ffed9b50fb8 CR3: 0000000079790000 CR4: 00000000003526f0 [ 90.474009][ T5821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.482041][ T5821] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.490032][ T5821] Kernel panic - not syncing: Fatal exception [ 90.496367][ T5821] Kernel Offset: disabled [ 90.500682][ T5821] Rebooting in 86400 seconds..