./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2755539413 <...> Warning: Permanently added '10.128.0.10' (ED25519) to the list of known hosts. execve("./syz-executor2755539413", ["./syz-executor2755539413"], 0x7ffc1b61bdb0 /* 10 vars */) = 0 brk(NULL) = 0x555556b37000 brk(0x555556b37d40) = 0x555556b37d40 arch_prctl(ARCH_SET_FS, 0x555556b373c0) = 0 set_tid_address(0x555556b37690) = 5050 set_robust_list(0x555556b376a0, 24) = 0 rseq(0x555556b37ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2755539413", 4096) = 28 getrandom("\x68\x28\x82\x0f\xf2\xfb\x81\xc0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556b37d40 brk(0x555556b58d40) = 0x555556b58d40 brk(0x555556b59000) = 0x555556b59000 mprotect(0x7f6db6449000, 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 5051 attached , child_tidptr=0x555556b37690) = 5051 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] set_robust_list(0x555556b376a0, 24) = 0 ./strace-static-x86_64: Process 5052 attached [pid 5051] mkdir("./syzkaller.kxN951", 0700 [pid 5050] <... clone resumed>, child_tidptr=0x555556b37690) = 5052 [pid 5052] set_robust_list(0x555556b376a0, 24) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... mkdir resumed>) = 0 [pid 5052] mkdir("./syzkaller.hWMuR1", 0700 [pid 5051] chmod("./syzkaller.kxN951", 0777./strace-static-x86_64: Process 5053 attached [pid 5050] <... clone resumed>, child_tidptr=0x555556b37690) = 5053 [pid 5053] set_robust_list(0x555556b376a0, 24 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... chmod resumed>) = 0 [pid 5053] <... set_robust_list resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] chdir("./syzkaller.kxN951") = 0 [pid 5053] mkdir("./syzkaller.GRhRe7", 0700 [pid 5052] chmod("./syzkaller.hWMuR1", 0777 [pid 5051] mkdir("./0", 0777) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... chmod resumed>) = 0 ./strace-static-x86_64: Process 5054 attached [pid 5050] <... clone resumed>, child_tidptr=0x555556b37690) = 5054 [pid 5053] chmod("./syzkaller.GRhRe7", 0777 [pid 5052] chdir("./syzkaller.hWMuR1" [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] set_robust_list(0x555556b376a0, 24) = 0 [pid 5052] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5055 attached [pid 5054] mkdir("./syzkaller.3s80T7", 0700 [pid 5053] <... chmod resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... clone resumed>, child_tidptr=0x555556b37690) = 5055 [pid 5055] set_robust_list(0x555556b376a0, 24 [pid 5053] chdir("./syzkaller.GRhRe7" [pid 5052] mkdir("./0", 0777 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... set_robust_list resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5053] <... chdir resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] mkdir("./syzkaller.YuBmKO", 0700 [pid 5053] mkdir("./0", 0777./strace-static-x86_64: Process 5056 attached [pid 5054] chmod("./syzkaller.3s80T7", 0777 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] close(3 [pid 5055] <... mkdir resumed>) = 0 [pid 5054] <... chmod resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5054] chdir("./syzkaller.3s80T7" [pid 5050] <... clone resumed>, child_tidptr=0x555556b37690) = 5056 [pid 5056] set_robust_list(0x555556b376a0, 24 [pid 5055] chmod("./syzkaller.YuBmKO", 0777 [pid 5054] <... chdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... openat resumed>) = 3 [pid 5051] <... close resumed>) = 0 [pid 5054] mkdir("./0", 0777 [pid 5056] <... set_robust_list resumed>) = 0 [pid 5055] <... chmod resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] chdir("./syzkaller.YuBmKO" [pid 5056] mkdir("./syzkaller.fpHWSf", 0700 [pid 5055] <... chdir resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5055] mkdir("./0", 0777 [pid 5054] <... mkdir resumed>) = 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] close(3 [pid 5056] <... mkdir resumed>) = 0 [pid 5053] close(3 [pid 5052] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... mkdir resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5060 [pid 5056] chmod("./syzkaller.fpHWSf", 0777) = 0 [pid 5054] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5060 attached [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5059 attached ./strace-static-x86_64: Process 5058 attached [pid 5060] set_robust_list(0x555556b376a0, 24 [pid 5056] chdir("./syzkaller.fpHWSf" [pid 5055] <... openat resumed>) = 3 [pid 5054] close(3 [pid 5059] set_robust_list(0x555556b376a0, 24 [pid 5058] set_robust_list(0x555556b376a0, 24 [pid 5060] <... set_robust_list resumed>) = 0 [pid 5056] <... chdir resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5059 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5058 [pid 5059] <... set_robust_list resumed>) = 0 [pid 5058] <... set_robust_list resumed>) = 0 [pid 5060] chdir("./0" [pid 5056] mkdir("./0", 0777 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5054] <... close resumed>) = 0 [pid 5059] chdir("./0" [pid 5058] chdir("./0" [pid 5060] <... chdir resumed>) = 0 [pid 5055] close(3 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... chdir resumed>) = 0 [pid 5058] <... chdir resumed>) = 0 [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... prctl resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5061 attached [pid 5059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] setpgid(0, 0 [pid 5060] setpgid(0, 0 [pid 5061] set_robust_list(0x555556b376a0, 24 [pid 5059] <... prctl resumed>) = 0 [pid 5058] <... setpgid resumed>) = 0 [pid 5060] <... setpgid resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5061 [pid 5059] setpgid(0, 0./strace-static-x86_64: Process 5062 attached [pid 5061] <... set_robust_list resumed>) = 0 [pid 5059] <... setpgid resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5062] set_robust_list(0x555556b376a0, 24 [pid 5061] chdir("./0" [pid 5059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5062 [pid 5062] <... set_robust_list resumed>) = 0 [pid 5061] <... chdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... openat resumed>) = 3 [pid 5062] chdir("./0" [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] write(3, "1000", 4) = 4 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5062] <... chdir resumed>) = 0 [pid 5061] <... prctl resumed>) = 0 [pid 5059] close(3 [pid 5058] write(3, "1000", 4 [pid 5060] write(3, "1000", 4 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... close resumed>) = 0 [pid 5056] close(3 [pid 5059] symlink("/dev/binderfs", "./binderfs" [pid 5056] <... close resumed>) = 0 [pid 5059] <... symlink resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] <... write resumed>) = 4 [pid 5060] <... write resumed>) = 4 [pid 5062] <... prctl resumed>) = 0 [pid 5061] setpgid(0, 0 [pid 5058] close(3 [pid 5060] close(3 [pid 5061] <... setpgid resumed>) = 0 [pid 5062] setpgid(0, 0 [pid 5058] <... close resumed>) = 0 [pid 5062] <... setpgid resumed>) = 0 [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... futex resumed>) = 0 [pid 5058] symlink("/dev/binderfs", "./binderfs" [pid 5060] <... close resumed>) = 0 ./strace-static-x86_64: Process 5063 attached [pid 5061] <... openat resumed>) = 3 [pid 5059] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5063] set_robust_list(0x555556b376a0, 24 [pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5061] write(3, "1000", 4 [pid 5059] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... symlink resumed>) = 0 [pid 5060] symlink("/dev/binderfs", "./binderfs" [pid 5063] <... set_robust_list resumed>) = 0 [pid 5062] <... openat resumed>) = 3 [pid 5061] <... write resumed>) = 4 [pid 5059] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5063 [pid 5063] chdir("./0" [pid 5062] write(3, "1000", 4 [pid 5061] close(3 [pid 5059] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... symlink resumed>) = 0 [pid 5063] <... chdir resumed>) = 0 [pid 5062] <... write resumed>) = 4 [pid 5061] <... close resumed>) = 0 [pid 5059] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5062] close(3 [pid 5061] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... mmap resumed>) = 0x7f6db6363000 [pid 5058] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5060] <... futex resumed>) = 0 [pid 5063] <... prctl resumed>) = 0 [pid 5062] <... close resumed>) = 0 [pid 5061] <... symlink resumed>) = 0 [pid 5059] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5063] setpgid(0, 0 [pid 5062] symlink("/dev/binderfs", "./binderfs" [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... mprotect resumed>) = 0 [pid 5058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5060] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5063] <... setpgid resumed>) = 0 [pid 5062] <... symlink resumed>) = 0 [pid 5061] <... futex resumed>) = 0 [pid 5059] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5061] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5059] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... mmap resumed>) = 0x7f6db6363000 [pid 5060] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5063] <... openat resumed>) = 3 [pid 5062] <... futex resumed>) = 0 [pid 5061] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5058] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5063] write(3, "1000", 4 [pid 5062] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... mprotect resumed>) = 0 [pid 5060] <... mmap resumed>) = 0x7f6db6363000 ./strace-static-x86_64: Process 5064 attached [pid 5062] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5064] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5063] <... write resumed>) = 4 [pid 5062] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5061] <... mmap resumed>) = 0x7f6db6363000 [pid 5059] <... clone3 resumed> => {parent_tid=[5064]}, 88) = 5064 [pid 5060] <... mprotect resumed>) = 0 [pid 5058] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5064] <... rseq resumed>) = 0 [pid 5063] close(3 [pid 5062] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5061] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5059] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5064] set_robust_list(0x7f6db63839a0, 24 [pid 5063] <... close resumed>) = 0 [pid 5062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5061] <... mprotect resumed>) = 0 [pid 5059] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5060] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5064] <... set_robust_list resumed>) = 0 [pid 5063] symlink("/dev/binderfs", "./binderfs" [pid 5062] <... mmap resumed>) = 0x7f6db6363000 [pid 5061] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5065 attached [pid 5064] rt_sigprocmask(SIG_SETMASK, [], [pid 5063] <... symlink resumed>) = 0 [pid 5062] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5061] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... futex resumed>) = 0 [pid 5065] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5064] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5062] <... mprotect resumed>) = 0 [pid 5061] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5058] <... clone3 resumed> => {parent_tid=[5065]}, 88) = 5065 [pid 5065] <... rseq resumed>) = 0 [pid 5065] set_robust_list(0x7f6db63839a0, 24 [pid 5058] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5067 attached ./strace-static-x86_64: Process 5066 attached [pid 5065] <... set_robust_list resumed>) = 0 [pid 5064] memfd_create("syzkaller", 0 [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... clone3 resumed> => {parent_tid=[5066]}, 88) = 5066 [pid 5067] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5066] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5065] rt_sigprocmask(SIG_SETMASK, [], [pid 5064] <... memfd_create resumed>) = 3 [pid 5063] <... futex resumed>) = 0 [pid 5062] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5061] <... clone3 resumed> => {parent_tid=[5067]}, 88) = 5067 [pid 5058] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rt_sigprocmask(SIG_SETMASK, [], [pid 5067] <... rseq resumed>) = 0 [pid 5066] <... rseq resumed>) = 0 [pid 5065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5063] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5062] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5061] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... futex resumed>) = 0 [pid 5060] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5067] set_robust_list(0x7f6db63839a0, 24 [pid 5066] set_robust_list(0x7f6db63839a0, 24 [pid 5065] memfd_create("syzkaller", 0 [pid 5064] <... mmap resumed>) = 0x7f6dade00000 [pid 5063] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5068 attached [pid 5067] <... set_robust_list resumed>) = 0 [pid 5066] <... set_robust_list resumed>) = 0 [pid 5065] <... memfd_create resumed>) = 3 [pid 5063] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5061] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... futex resumed>) = 0 [pid 5068] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5067] rt_sigprocmask(SIG_SETMASK, [], [pid 5066] rt_sigprocmask(SIG_SETMASK, [], [pid 5063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5062] <... clone3 resumed> => {parent_tid=[5068]}, 88) = 5068 [pid 5068] <... rseq resumed>) = 0 [pid 5067] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5061] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5062] rt_sigprocmask(SIG_SETMASK, [], [pid 5068] set_robust_list(0x7f6db63839a0, 24 [pid 5067] memfd_create("syzkaller", 0 [pid 5066] memfd_create("syzkaller", 0 [pid 5065] <... mmap resumed>) = 0x7f6dade00000 [pid 5063] <... mmap resumed>) = 0x7f6db6363000 [pid 5062] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5068] <... set_robust_list resumed>) = 0 [pid 5067] <... memfd_create resumed>) = 3 [pid 5066] <... memfd_create resumed>) = 3 [pid 5063] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5062] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] rt_sigprocmask(SIG_SETMASK, [], [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5063] <... mprotect resumed>) = 0 [pid 5062] <... futex resumed>) = 0 [pid 5068] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] <... mmap resumed>) = 0x7f6dade00000 [pid 5063] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5068] memfd_create("syzkaller", 0 [pid 5067] <... mmap resumed>) = 0x7f6dade00000 [pid 5066] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5065] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5063] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5068] <... memfd_create resumed>) = 3 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5064] <... write resumed>) = 524288 [pid 5067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5063] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5069]}, 88) = 5069 [pid 5063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5063] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5069 attached [pid 5065] <... write resumed>) = 524288 [pid 5064] munmap(0x7f6dade00000, 138412032 [pid 5069] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5069] set_robust_list(0x7f6db63839a0, 24 [pid 5068] <... write resumed>) = 524288 [pid 5064] <... munmap resumed>) = 0 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5069] rt_sigprocmask(SIG_SETMASK, [], [pid 5066] <... write resumed>) = 524288 [pid 5069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5064] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5067] <... write resumed>) = 524288 [pid 5069] memfd_create("syzkaller", 0 [pid 5066] munmap(0x7f6dade00000, 138412032 [pid 5064] <... openat resumed>) = 4 [pid 5069] <... memfd_create resumed>) = 3 [pid 5067] munmap(0x7f6dade00000, 138412032 [pid 5066] <... munmap resumed>) = 0 [pid 5065] munmap(0x7f6dade00000, 138412032 [pid 5064] ioctl(4, LOOP_SET_FD, 3 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] munmap(0x7f6dade00000, 138412032 [pid 5066] <... openat resumed>) = 4 [pid 5068] <... munmap resumed>) = 0 [pid 5066] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... mmap resumed>) = 0x7f6dade00000 [pid 5064] <... ioctl resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... munmap resumed>) = 0 [pid 5064] close(3 [pid 5069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... openat resumed>) = 4 [pid 5067] <... munmap resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5064] <... close resumed>) = 0 [pid 5068] ioctl(4, LOOP_SET_FD, 3 [pid 5065] <... openat resumed>) = 4 [pid 5064] close(4 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5065] ioctl(4, LOOP_SET_FD, 3 [pid 5064] <... close resumed>) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5067] ioctl(4, LOOP_SET_FD, 3 [pid 5064] mkdir("./file2", 0777 [pid 5066] close(3) = 0 [pid 5066] close(4) = 0 [pid 5066] mkdir("./file2", 0777) = 0 [ 77.847366][ T5064] loop2: detected capacity change from 0 to 1024 [ 77.859515][ T5066] loop0: detected capacity change from 0 to 1024 [ 77.870477][ T5065] loop1: detected capacity change from 0 to 1024 [ 77.870822][ T5068] loop3: detected capacity change from 0 to 1024 [ 77.885533][ T5067] loop4: detected capacity change from 0 to 1024 [pid 5066] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5064] <... mkdir resumed>) = 0 [pid 5069] <... write resumed>) = 524288 [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5064] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5069] munmap(0x7f6dade00000, 138412032 [pid 5067] close(3 [pid 5065] close(3 [pid 5068] close(3) = 0 [pid 5068] close(4) = 0 [pid 5068] mkdir("./file2", 0777 [pid 5067] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5069] <... munmap resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] close(4 [pid 5065] close(4 [pid 5067] <... close resumed>) = 0 [pid 5068] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5067] mkdir("./file2", 0777 [pid 5065] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5067] <... mkdir resumed>) = 0 [pid 5065] mkdir("./file2", 0777 [pid 5069] <... openat resumed>) = 4 [pid 5065] <... mkdir resumed>) = 0 [ 77.894950][ T5066] ======================================================= [ 77.894950][ T5066] WARNING: The mand mount option has been deprecated and [ 77.894950][ T5066] and is ignored by this kernel. Remove the mand [ 77.894950][ T5066] option from the mount to silence this warning. [ 77.894950][ T5066] ======================================================= [pid 5069] ioctl(4, LOOP_SET_FD, 3 [pid 5067] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5065] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5066] <... mount resumed>) = 0 [ 77.944853][ T5069] loop5: detected capacity change from 0 to 1024 [pid 5064] <... mount resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5064] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5066] <... openat resumed>) = 3 [pid 5064] <... openat resumed>) = 3 [pid 5068] <... mount resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5067] <... mount resumed>) = 0 [pid 5066] chdir("./file2" [pid 5064] chdir("./file2" [pid 5069] close(3 [pid 5068] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5067] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5066] <... chdir resumed>) = 0 [pid 5064] <... chdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5067] <... openat resumed>) = 3 [pid 5066] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5065] <... mount resumed>) = 0 [pid 5064] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5069] close(4 [pid 5065] <... openat resumed>) = 3 [pid 5064] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... close resumed>) = 0 [pid 5068] chdir("./file2" [pid 5067] chdir("./file2" [pid 5066] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] chdir("./file2" [pid 5064] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] mkdir("./file2", 0777 [pid 5068] <... chdir resumed>) = 0 [pid 5067] <... chdir resumed>) = 0 [pid 5065] <... chdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5065] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... futex resumed>) = 1 [pid 5059] <... futex resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... futex resumed>) = 1 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5066] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... futex resumed>) = 1 [pid 5064] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5062] <... futex resumed>) = 0 [pid 5059] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... futex resumed>) = 0 [pid 5068] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... futex resumed>) = 1 [pid 5065] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = 0 [pid 5058] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... futex resumed>) = 0 [pid 5069] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] <... futex resumed>) = 1 [pid 5066] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5064] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5062] <... futex resumed>) = 0 [pid 5061] <... futex resumed>) = 0 [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5064] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... futex resumed>) = 0 [pid 5068] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5064] <... futex resumed>) = 0 [pid 5061] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] <... mount resumed>) = 0 [pid 5067] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5064] memfd_create("syzkaller", 0 [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5068] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5064] <... memfd_create resumed>) = 4 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... futex resumed>) = 1 [pid 5067] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5065] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] <... futex resumed>) = 0 [pid 5059] <... futex resumed>) = 0 [pid 5069] chdir("./file2" [pid 5068] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... futex resumed>) = 1 [pid 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5062] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... futex resumed>) = 0 [pid 5069] <... chdir resumed>) = 0 [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... futex resumed>) = 1 [pid 5065] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5064] <... mmap resumed>) = 0x7f6dade00000 [pid 5062] <... futex resumed>) = 0 [pid 5058] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... futex resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] memfd_create("syzkaller", 0 [pid 5067] <... futex resumed>) = 1 [pid 5066] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5064] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5061] <... futex resumed>) = 0 [pid 5058] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] <... memfd_create resumed>) = 4 [pid 5067] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] memfd_create("syzkaller", 0 [pid 5069] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5061] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5068] <... mmap resumed>) = 0x7f6dade00000 [pid 5065] <... memfd_create resumed>) = 4 [pid 5060] <... futex resumed>) = 0 [pid 5069] <... futex resumed>) = 1 [pid 5065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5063] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5069] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5068] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] memfd_create("syzkaller", 0 [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] <... memfd_create resumed>) = 4 [pid 5065] <... mmap resumed>) = 0x7f6dade00000 [pid 5063] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5069] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] memfd_create("syzkaller", 0 [pid 5066] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5065] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5063] <... futex resumed>) = 0 [pid 5067] <... memfd_create resumed>) = 4 [pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] <... mmap resumed>) = 0x7f6dade00000 [pid 5067] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5068] <... write resumed>) = 524288 [pid 5065] <... write resumed>) = 524288 [pid 5064] <... write resumed>) = 524288 [pid 5069] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5069] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5063] <... futex resumed>) = 0 [pid 5066] <... write resumed>) = 524288 [pid 5063] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] munmap(0x7f6dade00000, 138412032 [pid 5069] <... futex resumed>) = 0 [pid 5065] munmap(0x7f6dade00000, 138412032 [pid 5064] <... munmap resumed>) = 0 [pid 5063] <... futex resumed>) = 1 [pid 5069] memfd_create("syzkaller", 0) = 4 [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... munmap resumed>) = 0 [pid 5069] <... mmap resumed>) = 0x7f6dade00000 [pid 5069] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] munmap(0x7f6dade00000, 138412032 [pid 5067] <... write resumed>) = 524288 [pid 5065] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5064] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... munmap resumed>) = 0 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5064] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] close(4 [pid 5064] close(4) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5068] close(4) = 0 [pid 5066] munmap(0x7f6dade00000, 138412032 [pid 5067] munmap(0x7f6dade00000, 138412032 [pid 5066] <... munmap resumed>) = 0 [pid 5067] <... munmap resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5064] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5066] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5064] <... futex resumed>) = 1 [pid 5059] <... futex resumed>) = 0 [pid 5066] close(4 [pid 5059] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = 0 [pid 5067] close(4 [pid 5064] openat(AT_FDCWD, ".", O_RDONLY [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] <... close resumed>) = 0 [pid 5065] <... futex resumed>) = 1 [pid 5064] <... openat resumed>) = 4 [pid 5058] <... futex resumed>) = 0 [pid 5068] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... futex resumed>) = 1 [pid 5064] <... futex resumed>) = 1 [pid 5059] <... futex resumed>) = 0 [pid 5058] <... futex resumed>) = 0 [pid 5065] openat(AT_FDCWD, ".", O_RDONLY [pid 5059] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... close resumed>) = 0 [pid 5065] <... openat resumed>) = 4 [pid 5064] openat(AT_FDCWD, ".", O_RDONLY [pid 5062] <... futex resumed>) = 0 [pid 5059] <... futex resumed>) = 0 [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... openat resumed>) = 5 [pid 5062] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] openat(AT_FDCWD, ".", O_RDONLY [pid 5064] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] <... futex resumed>) = 0 [pid 5065] <... futex resumed>) = 1 [pid 5058] <... futex resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5066] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] openat(AT_FDCWD, ".", O_RDONLY [pid 5064] <... futex resumed>) = 1 [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... futex resumed>) = 0 [pid 5058] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... futex resumed>) = 1 [pid 5065] <... openat resumed>) = 5 [pid 5064] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5059] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... futex resumed>) = 0 [pid 5060] <... futex resumed>) = 0 [pid 5068] <... futex resumed>) = 0 [pid 5067] <... futex resumed>) = 1 [pid 5066] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5062] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] <... futex resumed>) = 0 [pid 5059] <... futex resumed>) = 0 [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... write resumed>) = 524288 [pid 5068] openat(AT_FDCWD, ".", O_RDONLY [pid 5067] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5064] renameat2(5, "./file2", 4, "./file1", 0 [pid 5062] <... futex resumed>) = 0 [pid 5065] <... futex resumed>) = 0 [pid 5061] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] <... futex resumed>) = 0 [pid 5068] <... openat resumed>) = 5 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] openat(AT_FDCWD, ".", O_RDONLY [pid 5065] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5064] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] <... futex resumed>) = 0 [pid 5058] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] munmap(0x7f6dade00000, 138412032 [pid 5068] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] openat(AT_FDCWD, ".", O_RDONLY [pid 5066] <... openat resumed>) = 4 [pid 5065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5064] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... futex resumed>) = 0 [pid 5068] <... futex resumed>) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5065] renameat2(5, "./file2", 4, "./file1", 0 [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... munmap resumed>) = 0 [pid 5068] <... futex resumed>) = 0 [pid 5067] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5064] <... futex resumed>) = 1 [pid 5062] <... futex resumed>) = 1 [pid 5059] <... futex resumed>) = 0 [pid 5068] renameat2(5, "./file2", 4, "./file1", 0 [pid 5067] <... futex resumed>) = 1 [pid 5066] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] <... futex resumed>) = 0 [pid 5059] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5067] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = 1 [pid 5065] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5061] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = 0 [pid 5060] <... futex resumed>) = 0 [pid 5068] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] <... futex resumed>) = 1 [pid 5064] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5061] <... futex resumed>) = 0 [pid 5059] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... futex resumed>) = 1 [pid 5067] openat(AT_FDCWD, ".", O_RDONLY [pid 5066] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5064] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5062] <... futex resumed>) = 0 [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... futex resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] <... openat resumed>) = 5 [pid 5066] openat(AT_FDCWD, ".", O_RDONLY [pid 5065] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5064] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... openat resumed>) = 5 [pid 5065] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5064] <... futex resumed>) = 1 [pid 5062] <... futex resumed>) = 0 [pid 5059] <... futex resumed>) = 0 [pid 5058] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] close(4 [pid 5068] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5067] <... futex resumed>) = 1 [pid 5066] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] <... futex resumed>) = 0 [pid 5059] exit_group(0 [pid 5068] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5067] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = 1 [pid 5064] <... futex resumed>) = ? [pid 5061] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... exit_group resumed>) = ? [pid 5060] <... futex resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] <... futex resumed>) = 1 [pid 5064] +++ exited with 0 +++ [pid 5061] <... futex resumed>) = 0 [pid 5059] +++ exited with 0 +++ [pid 5058] <... futex resumed>) = 0 [pid 5060] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... futex resumed>) = 1 [pid 5067] renameat2(5, "./file2", 4, "./file1", 0 [pid 5066] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] <... futex resumed>) = 0 [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] exit_group(0 [pid 5060] <... futex resumed>) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5059, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5068] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5066] renameat2(5, "./file2", 4, "./file1", 0 [pid 5065] <... futex resumed>) = ? [pid 5062] exit_group(0 [pid 5058] <... exit_group resumed>) = ? [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] <... futex resumed>) = ? [pid 5066] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5065] +++ exited with 0 +++ [pid 5062] <... exit_group resumed>) = ? [pid 5058] +++ exited with 0 +++ [pid 5067] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5061] <... futex resumed>) = 0 [pid 5067] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5061] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5061] <... futex resumed>) = 0 [pid 5069] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] +++ exited with 0 +++ [pid 5067] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5062] +++ exited with 0 +++ [pid 5061] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5058, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5067] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5069] <... futex resumed>) = 1 [pid 5067] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] <... futex resumed>) = 0 [pid 5069] openat(AT_FDCWD, ".", O_RDONLY [pid 5067] <... futex resumed>) = 1 [pid 5063] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] <... futex resumed>) = 0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5062, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5069] <... openat resumed>) = 4 [pid 5067] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5061] exit_group(0 [pid 5060] <... futex resumed>) = 0 [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5053] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = ? [pid 5066] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] <... exit_group resumed>) = ? [pid 5060] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... restart_syscall resumed>) = 0 [pid 5052] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... futex resumed>) = 0 [pid 5067] +++ exited with 0 +++ [pid 5066] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5061] +++ exited with 0 +++ [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5063] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5063] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, ".", O_RDONLY [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 5 [pid 5066] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5060] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5053] newfstatat(3, "", [pid 5069] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5060] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... openat resumed>) = 3 [pid 5069] <... futex resumed>) = 1 [pid 5066] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] <... futex resumed>) = 0 [pid 5060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(3, "", [pid 5069] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = 0 [pid 5063] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] exit_group(0 [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5053] getdents64(3, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] renameat2(5, "./file2", 4, "./file1", 0 [pid 5066] <... futex resumed>) = ? [pid 5060] <... exit_group resumed>) = ? [pid 5069] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5066] +++ exited with 0 +++ [pid 5063] <... futex resumed>) = 0 [pid 5060] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] getdents64(3, [pid 5069] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5060, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... futex resumed>) = 0 [pid 5069] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5063] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5052] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5063] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] <... openat resumed>) = 3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5063] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(3, "", [pid 5054] newfstatat(3, "", [pid 5053] unlink("./0/binderfs" [pid 5052] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] getdents64(3, [pid 5054] getdents64(3, [pid 5052] unlink("./0/binderfs" [pid 5069] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5051] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5054] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... futex resumed>) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5054] unlink("./0/binderfs" [pid 5051] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5063] exit_group(0 [pid 5055] unlink("./0/binderfs" [pid 5051] <... openat resumed>) = 3 [pid 5055] <... unlink resumed>) = 0 [pid 5053] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(3, "", [pid 5063] <... exit_group resumed>) = ? [pid 5055] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... unlink resumed>) = 0 [pid 5069] <... futex resumed>) = ? [pid 5054] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] +++ exited with 0 +++ [pid 5063] +++ exited with 0 +++ [pid 5051] getdents64(3, [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5063, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./0/binderfs" [pid 5056] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5051] <... unlink resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5051] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, [pid 5053] <... umount2 resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5056] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5053] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] unlink("./0/binderfs" [pid 5053] newfstatat(AT_FDCWD, "./0/file2", [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5056] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5053] newfstatat(4, "", [pid 5055] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... umount2 resumed>) = 0 [pid 5053] getdents64(4, [pid 5051] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = 0 [pid 5052] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./0/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(AT_FDCWD, "./0/file2", [pid 5053] getdents64(4, [pid 5052] <... openat resumed>) = 4 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5053] close(4 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] close(4 [pid 5055] <... openat resumed>) = 4 [pid 5052] <... close resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5052] rmdir("./0/file2" [pid 5056] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] rmdir("./0/file2" [pid 5052] getdents64(3, [pid 5051] newfstatat(AT_FDCWD, "./0/file2", [pid 5056] newfstatat(AT_FDCWD, "./0/file2", [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] newfstatat(AT_FDCWD, "./0/file2", [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] close(3 [pid 5056] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, [pid 5054] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] rmdir("./0" [pid 5056] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] close(3 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] umount2("./0/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 4 [pid 5055] close(4 [pid 5054] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... close resumed>) = 0 [pid 5052] mkdir("./1", 0777 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(4, "", [pid 5055] <... close resumed>) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5053] rmdir("./0" [pid 5052] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] rmdir("./0/file2" [pid 5054] newfstatat(4, "", [pid 5053] <... rmdir resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] mkdir("./1", 0777 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] <... openat resumed>) = 4 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] getdents64(4, [pid 5053] <... mkdir resumed>) = 0 [pid 5056] getdents64(4, [pid 5051] newfstatat(4, "", [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] close(4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... close resumed>) = 0 [pid 5054] getdents64(4, [pid 5051] getdents64(4, [pid 5056] rmdir("./0/file2" [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(3, [pid 5054] close(4 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... openat resumed>) = 3 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(3, [pid 5055] close(3 [pid 5054] rmdir("./0/file2" [pid 5051] getdents64(4, [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... close resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5055] rmdir("./0" [pid 5056] close(3 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] getdents64(3, [pid 5051] close(4 [pid 5056] rmdir("./0" [pid 5055] mkdir("./1", 0777 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5054] close(3 [pid 5051] rmdir("./0/file2" [pid 5056] mkdir("./1", 0777 [pid 5055] <... mkdir resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5054] rmdir("./0" [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5051] <... rmdir resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] getdents64(3, [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5054] mkdir("./1", 0777 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] close(3) = 0 [pid 5051] rmdir("./0" [pid 5054] <... mkdir resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5051] mkdir("./1", 0777 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5051] <... mkdir resumed>) = 0 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5052] <... ioctl resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5052] close(3) = 0 [pid 5056] <... ioctl resumed>) = 0 [pid 5053] close(3 [pid 5056] close(3) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b37690) = 5074 ./strace-static-x86_64: Process 5074 attached [pid 5074] set_robust_list(0x555556b376a0, 24) = 0 [pid 5074] chdir("./1" [pid 5055] <... ioctl resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... chdir resumed>) = 0 [pid 5055] close(3 [pid 5054] <... ioctl resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] <... close resumed>) = 0 ./strace-static-x86_64: Process 5075 attached [pid 5051] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5076 attached [pid 5076] set_robust_list(0x555556b376a0, 24) = 0 [pid 5076] chdir("./1") = 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1000", 4 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5075 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... write resumed>) = 4 [pid 5074] <... prctl resumed>) = 0 [pid 5076] close(3 [pid 5074] setpgid(0, 0 [pid 5076] <... close resumed>) = 0 [pid 5074] <... setpgid resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5075] set_robust_list(0x555556b376a0, 24 [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3./strace-static-x86_64: Process 5077 attached [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... close resumed>) = 0 [pid 5054] close(3 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5076 [pid 5051] close(3 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5077 [pid 5054] <... close resumed>) = 0 [pid 5077] set_robust_list(0x555556b376a0, 24 [pid 5076] <... futex resumed>) = 0 [pid 5075] chdir("./1" [pid 5074] symlink("/dev/binderfs", "./binderfs" [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5075] <... chdir resumed>) = 0 [pid 5074] <... symlink resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5079 attached ./strace-static-x86_64: Process 5078 attached [pid 5077] chdir("./1" [pid 5076] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5075] <... prctl resumed>) = 0 [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] set_robust_list(0x555556b376a0, 24 [pid 5078] set_robust_list(0x555556b376a0, 24 [pid 5077] <... chdir resumed>) = 0 [pid 5076] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5075] setpgid(0, 0 [pid 5074] <... futex resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5079 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5078 [pid 5079] <... set_robust_list resumed>) = 0 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5075] <... setpgid resumed>) = 0 [pid 5074] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5079] chdir("./1" [pid 5078] chdir("./1" [pid 5077] <... prctl resumed>) = 0 [pid 5076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5074] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... chdir resumed>) = 0 [pid 5078] <... chdir resumed>) = 0 [pid 5077] setpgid(0, 0 [pid 5076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... setpgid resumed>) = 0 [pid 5076] <... mmap resumed>) = 0x7f6db6363000 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5079] <... prctl resumed>) = 0 [pid 5078] <... prctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5075] write(3, "1000", 4 [pid 5074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] setpgid(0, 0 [pid 5078] setpgid(0, 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... mprotect resumed>) = 0 [pid 5075] <... write resumed>) = 4 [pid 5074] <... mmap resumed>) = 0x7f6db6363000 [pid 5079] <... setpgid resumed>) = 0 [pid 5078] <... setpgid resumed>) = 0 [pid 5077] write(3, "1000", 4 [pid 5075] close(3 [pid 5074] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... write resumed>) = 4 [pid 5076] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5074] <... mprotect resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5075] <... close resumed>) = 0 [pid 5074] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5079] write(3, "1000", 4 [pid 5078] write(3, "1000", 4 [pid 5077] <... close resumed>) = 0 [pid 5076] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5075] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5079] <... write resumed>) = 4 [pid 5078] <... write resumed>) = 4 [pid 5077] symlink("/dev/binderfs", "./binderfs" [pid 5074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5080 attached [pid 5079] close(3 [pid 5078] close(3 [pid 5077] <... symlink resumed>) = 0 [pid 5075] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5081 attached [pid 5080] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5079] <... close resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... clone3 resumed> => {parent_tid=[5080]}, 88) = 5080 [pid 5074] <... clone3 resumed> => {parent_tid=[5081]}, 88) = 5081 [pid 5080] <... rseq resumed>) = 0 [pid 5078] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... futex resumed>) = 0 [pid 5076] rt_sigprocmask(SIG_SETMASK, [], [pid 5079] symlink("/dev/binderfs", "./binderfs" [pid 5074] rt_sigprocmask(SIG_SETMASK, [], [pid 5081] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5080] set_robust_list(0x7f6db63839a0, 24 [pid 5078] <... symlink resumed>) = 0 [pid 5077] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5081] set_robust_list(0x7f6db63839a0, 24 [pid 5080] <... set_robust_list resumed>) = 0 [pid 5079] <... symlink resumed>) = 0 [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5076] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] rt_sigprocmask(SIG_SETMASK, [], [pid 5078] <... futex resumed>) = 0 [pid 5077] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5076] <... futex resumed>) = 0 [pid 5075] <... futex resumed>) = 0 [pid 5074] <... futex resumed>) = 0 [pid 5081] rt_sigprocmask(SIG_SETMASK, [], [pid 5080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5077] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5080] memfd_create("syzkaller", 0 [pid 5079] <... futex resumed>) = 0 [pid 5078] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5077] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5081] memfd_create("syzkaller", 0 [pid 5079] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5077] <... mmap resumed>) = 0x7f6db6363000 [pid 5081] <... memfd_create resumed>) = 3 [pid 5080] <... memfd_create resumed>) = 3 [pid 5079] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5077] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5075] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] <... mprotect resumed>) = 0 [pid 5075] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5081] <... mmap resumed>) = 0x7f6dade00000 [pid 5080] <... mmap resumed>) = 0x7f6dade00000 [pid 5079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5078] <... mmap resumed>) = 0x7f6db6363000 [pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5078] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5077] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5078] <... mprotect resumed>) = 0 [pid 5077] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5077] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5078] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5083]}, 88) = 5083 [pid 5077] <... clone3 resumed> => {parent_tid=[5082]}, 88) = 5082 [pid 5078] rt_sigprocmask(SIG_SETMASK, [], [pid 5077] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5083 attached [pid 5078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5077] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5082 attached [pid 5083] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5078] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... rseq resumed>) = 0 [pid 5082] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5078] <... futex resumed>) = 0 [pid 5077] <... futex resumed>) = 0 [pid 5083] set_robust_list(0x7f6db63839a0, 24 [pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5083] <... set_robust_list resumed>) = 0 [pid 5082] <... rseq resumed>) = 0 [pid 5079] <... mmap resumed>) = 0x7f6db6363000 [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] <... mmap resumed>) = 0x7f6db6363000 [pid 5083] rt_sigprocmask(SIG_SETMASK, [], [pid 5082] set_robust_list(0x7f6db63839a0, 24 [pid 5079] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5075] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5083] memfd_create("syzkaller", 0 [pid 5082] rt_sigprocmask(SIG_SETMASK, [], [pid 5075] <... mprotect resumed>) = 0 [pid 5083] <... memfd_create resumed>) = 3 [pid 5082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] memfd_create("syzkaller", 0 [pid 5080] <... write resumed>) = 524288 [pid 5083] <... mmap resumed>) = 0x7f6dade00000 [pid 5082] <... memfd_create resumed>) = 3 [pid 5079] <... mprotect resumed>) = 0 [pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5075] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5082] <... mmap resumed>) = 0x7f6dade00000 [pid 5079] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5075] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5075] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5084 attached [pid 5084] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5075] <... clone3 resumed> => {parent_tid=[5085]}, 88) = 5085 ./strace-static-x86_64: Process 5085 attached [pid 5080] munmap(0x7f6dade00000, 138412032 [pid 5085] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5084] <... rseq resumed>) = 0 [pid 5080] <... munmap resumed>) = 0 [pid 5075] rt_sigprocmask(SIG_SETMASK, [], [pid 5081] <... write resumed>) = 524288 [pid 5079] <... clone3 resumed> => {parent_tid=[5084]}, 88) = 5084 [pid 5085] <... rseq resumed>) = 0 [pid 5084] set_robust_list(0x7f6db63839a0, 24 [pid 5075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5085] set_robust_list(0x7f6db63839a0, 24 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] rt_sigprocmask(SIG_SETMASK, [], [pid 5075] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] rt_sigprocmask(SIG_SETMASK, [], [pid 5081] munmap(0x7f6dade00000, 138412032 [pid 5079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] <... futex resumed>) = 0 [pid 5084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5085] <... set_robust_list resumed>) = 0 [pid 5082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5081] <... munmap resumed>) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5079] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5085] rt_sigprocmask(SIG_SETMASK, [], [pid 5084] <... futex resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5080] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... futex resumed>) = 1 [pid 5085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5084] memfd_create("syzkaller", 0 [pid 5081] <... openat resumed>) = 4 [pid 5080] <... ioctl resumed>) = 0 [pid 5085] memfd_create("syzkaller", 0 [pid 5083] <... write resumed>) = 524288 [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5084] <... memfd_create resumed>) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5082] <... write resumed>) = 524288 [ 78.657407][ T5080] loop2: detected capacity change from 0 to 1024 [ 78.680670][ T5081] loop5: detected capacity change from 0 to 1024 [pid 5081] ioctl(4, LOOP_SET_FD, 3 [pid 5085] <... memfd_create resumed>) = 3 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5083] munmap(0x7f6dade00000, 138412032 [pid 5082] munmap(0x7f6dade00000, 138412032 [pid 5080] close(3 [pid 5083] <... munmap resumed>) = 0 [pid 5082] <... munmap resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5082] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5080] close(4 [pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5085] <... write resumed>) = 524288 [pid 5083] <... openat resumed>) = 4 [pid 5082] <... openat resumed>) = 4 [pid 5080] <... close resumed>) = 0 [pid 5083] ioctl(4, LOOP_SET_FD, 3 [pid 5082] ioctl(4, LOOP_SET_FD, 3 [pid 5080] mkdir("./file2", 0777 [pid 5084] <... write resumed>) = 524288 [pid 5082] <... ioctl resumed>) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5080] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5081] close(3) = 0 [pid 5081] close(4) = 0 [pid 5085] munmap(0x7f6dade00000, 138412032 [pid 5081] mkdir("./file2", 0777 [pid 5085] <... munmap resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5081] <... mkdir resumed>) = 0 [pid 5085] <... openat resumed>) = 4 [pid 5084] munmap(0x7f6dade00000, 138412032 [pid 5083] <... ioctl resumed>) = 0 [pid 5085] ioctl(4, LOOP_SET_FD, 3 [pid 5084] <... munmap resumed>) = 0 [pid 5083] close(3 [pid 5082] close(3 [pid 5081] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5080] <... mount resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5083] close(4) = 0 [pid 5083] mkdir("./file2", 0777 [pid 5082] <... close resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] <... mkdir resumed>) = 0 [pid 5082] close(4) = 0 [pid 5084] <... openat resumed>) = 4 [pid 5082] mkdir("./file2", 0777 [pid 5084] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... mkdir resumed>) = 0 [pid 5083] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [ 78.708840][ T5082] loop4: detected capacity change from 0 to 1024 [ 78.715581][ T5083] loop0: detected capacity change from 0 to 1024 [ 78.742859][ T5085] loop1: detected capacity change from 0 to 1024 [pid 5080] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5082] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5080] <... openat resumed>) = 3 [pid 5080] chdir("./file2") = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5080] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... futex resumed>) = 0 [pid 5076] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5076] <... futex resumed>) = 1 [pid 5080] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] <... ioctl resumed>) = 0 [pid 5080] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5084] close(3) = 0 [pid 5080] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... ioctl resumed>) = 0 [pid 5084] close(4 [pid 5083] <... mount resumed>) = 0 [pid 5082] <... mount resumed>) = 0 [pid 5081] <... mount resumed>) = 0 [pid 5080] <... futex resumed>) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5085] close(3 [pid 5084] <... close resumed>) = 0 [pid 5083] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5082] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5081] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5080] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... close resumed>) = 0 [pid 5084] mkdir("./file2", 0777 [pid 5083] <... openat resumed>) = 3 [pid 5082] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] <... futex resumed>) = 0 [pid 5085] close(4) = 0 [pid 5084] <... mkdir resumed>) = 0 [pid 5081] chdir("./file2") = 0 [ 78.758231][ T5084] loop3: detected capacity change from 0 to 1024 [pid 5081] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5085] mkdir("./file2", 0777 [pid 5083] chdir("./file2" [pid 5082] chdir("./file2" [pid 5081] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] memfd_create("syzkaller", 0 [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5085] <... mkdir resumed>) = 0 [pid 5084] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5083] <... chdir resumed>) = 0 [pid 5082] <... chdir resumed>) = 0 [pid 5081] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... memfd_create resumed>) = 4 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] <... mmap resumed>) = 0x7f6dade00000 [pid 5083] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5085] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5083] <... futex resumed>) = 1 [pid 5082] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5081] <... futex resumed>) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5074] <... futex resumed>) = 0 [pid 5083] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5081] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5078] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5082] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5082] <... futex resumed>) = 1 [pid 5077] <... futex resumed>) = 0 [pid 5074] <... futex resumed>) = 0 [pid 5081] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5084] <... mount resumed>) = 0 [pid 5083] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5081] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... write resumed>) = 524288 [pid 5077] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5083] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] <... futex resumed>) = 0 [pid 5074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5081] <... futex resumed>) = 0 [pid 5078] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... openat resumed>) = 3 [pid 5083] memfd_create("syzkaller", 0 [pid 5081] memfd_create("syzkaller", 0 [pid 5078] <... futex resumed>) = 0 [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... futex resumed>) = 0 [pid 5084] chdir("./file2" [pid 5083] <... memfd_create resumed>) = 4 [pid 5081] <... memfd_create resumed>) = 4 [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5084] <... chdir resumed>) = 0 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5083] <... mmap resumed>) = 0x7f6dade00000 [pid 5082] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... mmap resumed>) = 0x7f6dade00000 [pid 5080] munmap(0x7f6dade00000, 138412032 [pid 5084] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... mount resumed>) = 0 [pid 5084] <... futex resumed>) = 1 [pid 5083] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5082] <... futex resumed>) = 1 [pid 5080] <... munmap resumed>) = 0 [pid 5079] <... futex resumed>) = 0 [pid 5077] <... futex resumed>) = 0 [pid 5085] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... openat resumed>) = 3 [pid 5085] chdir("./file2" [pid 5082] memfd_create("syzkaller", 0 [pid 5081] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5080] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... chdir resumed>) = 0 [pid 5084] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5082] <... memfd_create resumed>) = 4 [pid 5080] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5077] <... futex resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5084] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] close(4 [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5085] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5084] <... futex resumed>) = 1 [pid 5082] <... mmap resumed>) = 0x7f6dade00000 [pid 5081] <... write resumed>) = 524288 [pid 5079] <... futex resumed>) = 0 [pid 5085] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5079] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... futex resumed>) = 1 [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5080] <... close resumed>) = 0 [pid 5075] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 0 [pid 5085] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] memfd_create("syzkaller", 0 [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] <... memfd_create resumed>) = 4 [pid 5075] <... futex resumed>) = 0 [pid 5085] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5080] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5080] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] <... futex resumed>) = 0 [pid 5080] openat(AT_FDCWD, ".", O_RDONLY [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5083] <... write resumed>) = 524288 [pid 5082] <... write resumed>) = 524288 [pid 5081] munmap(0x7f6dade00000, 138412032 [pid 5080] <... openat resumed>) = 4 [pid 5080] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5080] openat(AT_FDCWD, ".", O_RDONLY [pid 5076] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] munmap(0x7f6dade00000, 138412032 [pid 5080] <... openat resumed>) = 5 [pid 5076] <... futex resumed>) = 0 [pid 5083] <... munmap resumed>) = 0 [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5081] <... munmap resumed>) = 0 [pid 5080] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] <... futex resumed>) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5076] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5083] close(4 [pid 5081] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5080] renameat2(5, "./file2", 4, "./file1", 0 [pid 5081] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] close(4 [pid 5080] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5085] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... close resumed>) = 0 [pid 5080] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] munmap(0x7f6dade00000, 138412032 [pid 5080] <... futex resumed>) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5082] <... munmap resumed>) = 0 [pid 5080] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5085] <... futex resumed>) = 1 [pid 5082] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5076] <... futex resumed>) = 0 [pid 5085] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5083] <... close resumed>) = 0 [pid 5082] close(4 [pid 5080] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5076] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 0 [pid 5083] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = 1 [pid 5081] <... futex resumed>) = 1 [pid 5080] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... futex resumed>) = 0 [pid 5081] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] <... futex resumed>) = 1 [pid 5078] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... futex resumed>) = 0 [pid 5080] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] <... futex resumed>) = 0 [pid 5076] exit_group(0 [pid 5080] <... futex resumed>) = ? [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... exit_group resumed>) = ? [pid 5080] +++ exited with 0 +++ [pid 5076] +++ exited with 0 +++ [pid 5083] openat(AT_FDCWD, ".", O_RDONLY [pid 5075] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5083] <... openat resumed>) = 4 [pid 5075] <... futex resumed>) = 1 [pid 5074] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5084] <... write resumed>) = 524288 [pid 5085] <... futex resumed>) = 0 [pid 5083] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = 0 [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] <... futex resumed>) = 1 [pid 5085] memfd_create("syzkaller", 0 [pid 5083] <... futex resumed>) = 1 [pid 5081] openat(AT_FDCWD, ".", O_RDONLY [pid 5078] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... memfd_create resumed>) = 4 [pid 5084] munmap(0x7f6dade00000, 138412032 [pid 5083] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5078] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] <... munmap resumed>) = 0 [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5081] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... futex resumed>) = 0 [pid 5085] <... mmap resumed>) = 0x7f6dade00000 [pid 5084] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] openat(AT_FDCWD, ".", O_RDONLY [pid 5082] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = 1 [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... futex resumed>) = 0 [pid 5053] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5084] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... openat resumed>) = 5 [pid 5082] <... futex resumed>) = 1 [pid 5081] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5084] close(4 [pid 5083] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5081] openat(AT_FDCWD, ".", O_RDONLY [pid 5078] <... futex resumed>) = 0 [pid 5077] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] openat(AT_FDCWD, ".", O_RDONLY [pid 5081] <... openat resumed>) = 5 [pid 5078] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... openat resumed>) = 3 [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... openat resumed>) = 4 [pid 5081] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... futex resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5083] renameat2(5, "./file2", 4, "./file1", 0 [pid 5082] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = 1 [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... futex resumed>) = 0 [pid 5085] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5084] <... close resumed>) = 0 [pid 5083] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5082] <... futex resumed>) = 1 [pid 5081] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5084] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5053] getdents64(3, [pid 5083] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5081] renameat2(5, "./file2", 4, "./file1", 0 [pid 5078] <... futex resumed>) = 0 [pid 5077] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] <... futex resumed>) = 1 [pid 5083] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] openat(AT_FDCWD, ".", O_RDONLY [pid 5081] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5079] <... futex resumed>) = 0 [pid 5078] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... openat resumed>) = 5 [pid 5081] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... futex resumed>) = 0 [pid 5053] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5083] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5082] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = 1 [pid 5079] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5082] <... futex resumed>) = 1 [pid 5081] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... futex resumed>) = 1 [pid 5077] <... futex resumed>) = 0 [pid 5084] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5084] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5084] <... openat resumed>) = 4 [pid 5083] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5081] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5078] <... futex resumed>) = 0 [pid 5077] <... futex resumed>) = 0 [pid 5074] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... write resumed>) = 524288 [pid 5084] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] renameat2(5, "./file2", 4, "./file1", 0 [pid 5081] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] exit_group(0 [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5085] munmap(0x7f6dade00000, 138412032 [pid 5084] <... futex resumed>) = 0 [pid 5083] <... futex resumed>) = ? [pid 5082] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5081] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... exit_group resumed>) = ? [pid 5085] <... munmap resumed>) = 0 [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5083] +++ exited with 0 +++ [pid 5079] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] unlink("./1/binderfs" [pid 5085] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = 1 [pid 5079] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] +++ exited with 0 +++ [pid 5074] <... futex resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5085] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5084] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 1 [pid 5074] exit_group(0 [pid 5077] <... futex resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5082] <... futex resumed>) = 1 [pid 5081] write(-256, "\x00\x00\x00\x00\xc0\x36\x38\xb6\x6d\x7f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xf0\xfa\x02\x00\x00\x00\x00\x4e\x00\x00\x00\x00\x00\x00\x00\x64\x06\x1a\x3b\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x03\x14\x12\xfe\x7f\x00\x00\x4d\x00\x00\x00\x00\x00\x00\x00\xed\x63\x43\x2a\x00\x00\x00\x00\x4e\x00\x00\x00\x00\x00\x00\x00\x2e\x98\xac\x0e\x00\x00\x00\x00\x2e\x2f\x31\x00\x00\x00\x00\x00"..., 1073741825 [pid 5085] close(4 [pid 5084] openat(AT_FDCWD, ".", O_RDONLY [pid 5082] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... exit_group resumed>) = ? [pid 5081] +++ exited with 0 +++ [pid 5053] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5085] <... close resumed>) = 0 [pid 5084] <... openat resumed>) = 5 [pid 5082] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5077] <... futex resumed>) = 0 [pid 5077] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] +++ exited with 0 +++ [pid 5082] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5084] <... futex resumed>) = 1 [pid 5077] exit_group(0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... futex resumed>) = 0 [pid 5077] <... exit_group resumed>) = ? [pid 5056] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5085] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 1 [pid 5056] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(3, "", [pid 5085] <... futex resumed>) = 1 [pid 5084] renameat2(5, "./file2", 4, "./file1", 0 [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5085] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5075] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(3, "", [pid 5051] getdents64(3, [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5085] openat(AT_FDCWD, ".", O_RDONLY [pid 5084] <... futex resumed>) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(3, [pid 5051] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5085] <... openat resumed>) = 4 [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5085] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... futex resumed>) = 0 [pid 5056] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5085] <... futex resumed>) = 1 [pid 5084] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5079] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5085] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5075] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5053] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./1/binderfs" [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] +++ exited with 0 +++ [pid 5077] +++ exited with 0 +++ [pid 5075] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5085] openat(AT_FDCWD, ".", O_RDONLY [pid 5084] <... futex resumed>) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5056] unlink("./1/binderfs" [pid 5053] newfstatat(AT_FDCWD, "./1/file2", [pid 5051] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5085] <... openat resumed>) = 5 [pid 5084] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] exit_group(0 [pid 5056] <... unlink resumed>) = 0 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5085] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = ? [pid 5079] <... exit_group resumed>) = ? [pid 5055] <... restart_syscall resumed>) = 0 [pid 5085] <... futex resumed>) = 1 [pid 5084] +++ exited with 0 +++ [pid 5075] <... futex resumed>) = 0 [pid 5056] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5085] renameat2(5, "./file2", 4, "./file1", 0 [pid 5075] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5085] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5075] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5053] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] getdents64(4, [pid 5051] <... umount2 resumed>) = 0 [pid 5085] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] getdents64(4, [pid 5085] <... futex resumed>) = 1 [pid 5079] +++ exited with 0 +++ [pid 5075] <... futex resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4 [pid 5085] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5075] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... close resumed>) = 0 [pid 5075] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] rmdir("./1/file2" [pid 5075] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] <... rmdir resumed>) = 0 [pid 5085] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5055] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5053] getdents64(3, [pid 5051] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5085] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5054] <... restart_syscall resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5085] <... futex resumed>) = 1 [pid 5075] <... futex resumed>) = 0 [pid 5056] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(3, "", [pid 5053] close(3 [pid 5051] newfstatat(AT_FDCWD, "./1/file2", [pid 5085] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5075] exit_group(0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... close resumed>) = 0 [pid 5085] <... futex resumed>) = ? [pid 5075] <... exit_group resumed>) = ? [pid 5056] newfstatat(AT_FDCWD, "./1/file2", [pid 5055] getdents64(3, [pid 5054] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./1" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... openat resumed>) = 3 [pid 5055] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5056] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5085] +++ exited with 0 +++ [pid 5075] +++ exited with 0 +++ [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] newfstatat(3, "", [pid 5053] <... rmdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 4 [pid 5055] unlink("./1/binderfs" [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5056] newfstatat(4, "", [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] mkdir("./2", 0777 [pid 5051] <... openat resumed>) = 4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5054] getdents64(3, [pid 5055] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5053] <... mkdir resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5054] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./1/file2" [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(4, [pid 5056] <... rmdir resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5052] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] getdents64(4, [pid 5054] unlink("./1/binderfs" [pid 5052] newfstatat(3, "", [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(3, [pid 5054] <... unlink resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] close(4 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5052] getdents64(3, [pid 5051] <... close resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5054] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./1" [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] rmdir("./1/file2" [pid 5056] <... rmdir resumed>) = 0 [pid 5052] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] mkdir("./2", 0777 [pid 5052] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5056] <... mkdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(3, [pid 5052] unlink("./1/binderfs" [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5051] close(3) = 0 [pid 5051] rmdir("./1" [pid 5052] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5051] mkdir("./2", 0777 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5051] <... mkdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] newfstatat(AT_FDCWD, "./1/file2", [pid 5054] <... umount2 resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5055] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./1/file2", [pid 5055] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5054] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(4, "", [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] newfstatat(AT_FDCWD, "./1/file2", [pid 5052] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] getdents64(4, [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] umount2("./1/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(4, "", [pid 5055] getdents64(4, [pid 5054] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5055] close(4 [pid 5052] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5054] newfstatat(4, "", [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] rmdir("./1/file2" [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5052] getdents64(4, [pid 5054] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] getdents64(4, [pid 5052] close(4 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] <... close resumed>) = 0 [pid 5054] close(4 [pid 5052] rmdir("./1/file2" [pid 5055] getdents64(3, [pid 5054] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5054] rmdir("./1/file2" [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [pid 5052] rmdir("./1" [pid 5055] close(3 [pid 5054] <... rmdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5054] getdents64(3, [pid 5055] rmdir("./1" [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5054] close(3 [pid 5056] <... ioctl resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5052] mkdir("./2", 0777 [pid 5054] rmdir("./1" [pid 5053] <... ioctl resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5054] mkdir("./2", 0777 [pid 5052] <... openat resumed>) = 3 [pid 5054] <... mkdir resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5055] mkdir("./2", 0777) = 0 [pid 5056] close(3 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5053] close(3 [pid 5051] close(3 [pid 5056] <... close resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5053] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 ./strace-static-x86_64: Process 5086 attached [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached [pid 5086] set_robust_list(0x555556b376a0, 24 [pid 5055] <... openat resumed>) = 3 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5086 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5086] <... set_robust_list resumed>) = 0 [pid 5086] chdir("./2") = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5087 ./strace-static-x86_64: Process 5088 attached [pid 5087] set_robust_list(0x555556b376a0, 24 [pid 5086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5088 [pid 5088] set_robust_list(0x555556b376a0, 24) = 0 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5086] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5088] chdir("./2" [pid 5086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5088] <... chdir resumed>) = 0 [pid 5087] chdir("./2" [pid 5086] <... mmap resumed>) = 0x7f6db6363000 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... chdir resumed>) = 0 [pid 5088] <... prctl resumed>) = 0 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5088] setpgid(0, 0 [pid 5086] <... mprotect resumed>) = 0 [pid 5088] <... setpgid resumed>) = 0 [pid 5086] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1000", 4 [pid 5087] <... prctl resumed>) = 0 [pid 5086] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5088] <... write resumed>) = 4 [pid 5087] setpgid(0, 0 [pid 5086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5088] close(3 [pid 5087] <... setpgid resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5052] <... ioctl resumed>) = 0 [pid 5088] <... close resumed>) = 0 ./strace-static-x86_64: Process 5089 attached [pid 5088] symlink("/dev/binderfs", "./binderfs" [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] <... clone3 resumed> => {parent_tid=[5089]}, 88) = 5089 [pid 5052] close(3 [pid 5089] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5086] rt_sigprocmask(SIG_SETMASK, [], [pid 5089] <... rseq resumed>) = 0 [pid 5086] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] close(3 [pid 5052] <... close resumed>) = 0 [pid 5089] set_robust_list(0x7f6db63839a0, 24 [pid 5086] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5086] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] rt_sigprocmask(SIG_SETMASK, [], [pid 5087] write(3, "1000", 4 [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5088] <... symlink resumed>) = 0 [pid 5054] close(3./strace-static-x86_64: Process 5090 attached [pid 5089] memfd_create("syzkaller", 0 [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... write resumed>) = 4 [pid 5054] <... close resumed>) = 0 [pid 5090] set_robust_list(0x555556b376a0, 24 [pid 5089] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5091 attached [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5091 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5088] <... futex resumed>) = 0 [pid 5087] close(3 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5090 [pid 5090] chdir("./2" [pid 5088] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5087] <... close resumed>) = 0 [pid 5091] set_robust_list(0x555556b376a0, 24 [pid 5090] <... chdir resumed>) = 0 [pid 5088] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5087] symlink("/dev/binderfs", "./binderfs" [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5091] <... set_robust_list resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5092 ./strace-static-x86_64: Process 5092 attached [pid 5091] chdir("./2" [pid 5090] <... prctl resumed>) = 0 [pid 5088] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5087] <... symlink resumed>) = 0 [pid 5090] setpgid(0, 0 [pid 5088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5092] set_robust_list(0x555556b376a0, 24 [pid 5091] <... chdir resumed>) = 0 [pid 5090] <... setpgid resumed>) = 0 [pid 5088] <... mmap resumed>) = 0x7f6db6363000 [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... write resumed>) = 524288 [pid 5088] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5087] <... futex resumed>) = 0 [pid 5092] chdir("./2" [pid 5091] <... prctl resumed>) = 0 [pid 5088] <... mprotect resumed>) = 0 [pid 5087] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5092] <... chdir resumed>) = 0 [pid 5091] setpgid(0, 0 [pid 5088] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5091] <... setpgid resumed>) = 0 [pid 5088] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5087] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5092] <... prctl resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... openat resumed>) = 3 [pid 5088] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5093 attached [pid 5092] setpgid(0, 0 [pid 5091] <... openat resumed>) = 3 [pid 5090] write(3, "1000", 4 [pid 5087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5093] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5092] <... setpgid resumed>) = 0 [pid 5091] write(3, "1000", 4 [pid 5090] <... write resumed>) = 4 [pid 5088] <... clone3 resumed> => {parent_tid=[5093]}, 88) = 5093 [pid 5087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5093] <... rseq resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5091] <... write resumed>) = 4 [pid 5090] close(3 [pid 5089] munmap(0x7f6dade00000, 138412032 [pid 5088] rt_sigprocmask(SIG_SETMASK, [], [pid 5087] <... mmap resumed>) = 0x7f6db6363000 [pid 5093] set_robust_list(0x7f6db63839a0, 24 [pid 5092] <... openat resumed>) = 3 [pid 5091] close(3 [pid 5090] <... close resumed>) = 0 [pid 5089] <... munmap resumed>) = 0 [pid 5088] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5087] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5093] <... set_robust_list resumed>) = 0 [pid 5092] write(3, "1000", 4 [pid 5091] <... close resumed>) = 0 [pid 5090] symlink("/dev/binderfs", "./binderfs" [pid 5092] <... write resumed>) = 4 [pid 5091] symlink("/dev/binderfs", "./binderfs" [pid 5092] close(3 [pid 5091] <... symlink resumed>) = 0 [pid 5090] <... symlink resumed>) = 0 [pid 5093] rt_sigprocmask(SIG_SETMASK, [], [pid 5092] <... close resumed>) = 0 [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... mprotect resumed>) = 0 [pid 5093] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs" [pid 5091] <... futex resumed>) = 0 [pid 5090] <... futex resumed>) = 0 [pid 5089] <... openat resumed>) = 4 [pid 5088] <... futex resumed>) = 0 [pid 5093] memfd_create("syzkaller", 0 [pid 5092] <... symlink resumed>) = 0 [pid 5091] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5089] ioctl(4, LOOP_SET_FD, 3 [pid 5087] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5090] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5093] <... memfd_create resumed>) = 3 [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5089] <... ioctl resumed>) = 0 [pid 5092] <... futex resumed>) = 0 [pid 5091] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5092] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5091] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5092] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5091] <... mprotect resumed>) = 0 [pid 5092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5091] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5092] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5091] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5091] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5092] <... mmap resumed>) = 0x7f6db6363000 [pid 5092] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5092] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5091] <... clone3 resumed> => {parent_tid=[5094]}, 88) = 5094 [pid 5092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5092] <... clone3 resumed> => {parent_tid=[5095]}, 88) = 5095 [pid 5091] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5095 attached ./strace-static-x86_64: Process 5094 attached [pid 5092] rt_sigprocmask(SIG_SETMASK, [], [pid 5091] <... futex resumed>) = 0 [pid 5095] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5094] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5092] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5090] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5087] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5095] <... rseq resumed>) = 0 [pid 5094] <... rseq resumed>) = 0 [pid 5092] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5095] set_robust_list(0x7f6db63839a0, 24 [pid 5094] set_robust_list(0x7f6db63839a0, 24 [pid 5092] <... futex resumed>) = 0 [pid 5090] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5096 attached [pid 5095] <... set_robust_list resumed>) = 0 [pid 5094] <... set_robust_list resumed>) = 0 [pid 5093] <... mmap resumed>) = 0x7f6dade00000 [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5089] close(3 [pid 5095] rt_sigprocmask(SIG_SETMASK, [], [pid 5094] rt_sigprocmask(SIG_SETMASK, [], [pid 5089] <... close resumed>) = 0 [pid 5095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5094] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5089] close(4 [pid 5095] memfd_create("syzkaller", 0 [pid 5094] memfd_create("syzkaller", 0 [pid 5090] <... mmap resumed>) = 0x7f6db6363000 [pid 5089] <... close resumed>) = 0 [pid 5096] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5095] <... memfd_create resumed>) = 3 [pid 5094] <... memfd_create resumed>) = 3 [pid 5090] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5089] mkdir("./file2", 0777 [pid 5087] <... clone3 resumed> => {parent_tid=[5096]}, 88) = 5096 [pid 5096] <... rseq resumed>) = 0 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... mprotect resumed>) = 0 [pid 5089] <... mkdir resumed>) = 0 [pid 5087] rt_sigprocmask(SIG_SETMASK, [], [pid 5096] set_robust_list(0x7f6db63839a0, 24 [pid 5095] <... mmap resumed>) = 0x7f6dade00000 [pid 5087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5096] <... set_robust_list resumed>) = 0 [pid 5094] <... mmap resumed>) = 0x7f6dade00000 [pid 5093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5090] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5087] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] rt_sigprocmask(SIG_SETMASK, [], [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5089] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5096] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5090] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5096] memfd_create("syzkaller", 0 [pid 5090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288./strace-static-x86_64: Process 5097 attached [ 79.348159][ T5089] loop2: detected capacity change from 0 to 1024 [pid 5096] <... memfd_create resumed>) = 3 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5094] <... write resumed>) = 524288 [pid 5093] <... write resumed>) = 524288 [pid 5090] <... clone3 resumed> => {parent_tid=[5097]}, 88) = 5097 [pid 5097] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5096] <... mmap resumed>) = 0x7f6dade00000 [pid 5090] rt_sigprocmask(SIG_SETMASK, [], [pid 5097] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5090] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5089] <... mount resumed>) = 0 [pid 5097] rt_sigprocmask(SIG_SETMASK, [], [pid 5090] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5089] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5097] memfd_create("syzkaller", 0 [pid 5089] <... openat resumed>) = 3 [pid 5097] <... memfd_create resumed>) = 3 [pid 5089] chdir("./file2" [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... chdir resumed>) = 0 [pid 5097] <... mmap resumed>) = 0x7f6dade00000 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5095] <... write resumed>) = 524288 [pid 5089] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] <... futex resumed>) = 0 [pid 5095] munmap(0x7f6dade00000, 138412032 [pid 5089] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5095] <... munmap resumed>) = 0 [pid 5094] munmap(0x7f6dade00000, 138412032 [pid 5093] munmap(0x7f6dade00000, 138412032 [pid 5089] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5093] <... munmap resumed>) = 0 [pid 5094] <... munmap resumed>) = 0 [pid 5089] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... write resumed>) = 524288 [pid 5095] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] <... futex resumed>) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5094] <... openat resumed>) = 4 [pid 5093] <... openat resumed>) = 4 [pid 5086] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] ioctl(4, LOOP_SET_FD, 3 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5086] <... futex resumed>) = 0 [pid 5097] <... write resumed>) = 524288 [pid 5096] munmap(0x7f6dade00000, 138412032 [pid 5093] <... ioctl resumed>) = 0 [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5097] munmap(0x7f6dade00000, 138412032 [pid 5095] <... openat resumed>) = 4 [pid 5089] memfd_create("syzkaller", 0) = 4 [pid 5097] <... munmap resumed>) = 0 [pid 5095] ioctl(4, LOOP_SET_FD, 3 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5097] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5096] <... munmap resumed>) = 0 [pid 5093] close(3 [pid 5089] <... mmap resumed>) = 0x7f6dade00000 [pid 5097] <... openat resumed>) = 4 [pid 5093] <... close resumed>) = 0 [pid 5097] ioctl(4, LOOP_SET_FD, 3 [pid 5096] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5093] close(4 [pid 5089] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5096] <... openat resumed>) = 4 [pid 5093] <... close resumed>) = 0 [pid 5093] mkdir("./file2", 0777) = 0 [pid 5095] <... ioctl resumed>) = 0 [pid 5096] ioctl(4, LOOP_SET_FD, 3 [pid 5095] close(3) = 0 [pid 5095] close(4) = 0 [pid 5095] mkdir("./file2", 0777) = 0 [pid 5095] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5093] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5097] <... ioctl resumed>) = 0 [pid 5097] close(3 [pid 5096] <... ioctl resumed>) = 0 [pid 5096] close(3 [pid 5095] <... mount resumed>) = 0 [pid 5094] <... ioctl resumed>) = 0 [pid 5089] <... write resumed>) = 524288 [pid 5096] <... close resumed>) = 0 [pid 5095] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5094] close(3 [pid 5096] close(4 [pid 5095] <... openat resumed>) = 3 [pid 5094] <... close resumed>) = 0 [pid 5097] <... close resumed>) = 0 [pid 5096] <... close resumed>) = 0 [pid 5095] chdir("./file2" [pid 5094] close(4 [pid 5096] mkdir("./file2", 0777 [pid 5095] <... chdir resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5089] munmap(0x7f6dade00000, 138412032 [pid 5097] close(4 [pid 5095] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5094] mkdir("./file2", 0777 [pid 5097] <... close resumed>) = 0 [pid 5096] <... mkdir resumed>) = 0 [pid 5095] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 79.448619][ T5093] loop0: detected capacity change from 0 to 1024 [ 79.449325][ T5094] loop4: detected capacity change from 0 to 1024 [ 79.465976][ T5095] loop3: detected capacity change from 0 to 1024 [ 79.475212][ T5097] loop1: detected capacity change from 0 to 1024 [ 79.489758][ T5096] loop5: detected capacity change from 0 to 1024 [pid 5094] <... mkdir resumed>) = 0 [pid 5093] <... mount resumed>) = 0 [pid 5097] mkdir("./file2", 0777 [pid 5095] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5093] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5089] <... munmap resumed>) = 0 [pid 5097] <... mkdir resumed>) = 0 [pid 5096] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5095] <... futex resumed>) = 1 [pid 5093] <... openat resumed>) = 3 [pid 5092] <... futex resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5095] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] chdir("./file2" [pid 5092] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5097] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] <... mount resumed>) = 0 [pid 5093] <... chdir resumed>) = 0 [pid 5092] <... futex resumed>) = 0 [pid 5089] close(4 [pid 5095] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5094] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5095] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5094] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 1 [pid 5094] chdir("./file2" [pid 5093] <... futex resumed>) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5088] <... futex resumed>) = 0 [pid 5095] memfd_create("syzkaller", 0 [pid 5094] <... chdir resumed>) = 0 [pid 5092] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... memfd_create resumed>) = 4 [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5092] <... futex resumed>) = 0 [pid 5089] <... close resumed>) = 0 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5088] <... futex resumed>) = 0 [pid 5094] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... mmap resumed>) = 0x7f6dade00000 [pid 5094] <... futex resumed>) = 1 [pid 5093] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5091] <... futex resumed>) = 0 [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5094] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5091] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] <... futex resumed>) = 0 [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... mount resumed>) = 0 [pid 5089] <... futex resumed>) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5096] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5086] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... openat resumed>) = 3 [pid 5094] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5093] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5089] openat(AT_FDCWD, ".", O_RDONLY [pid 5086] <... futex resumed>) = 0 [pid 5096] chdir("./file2" [pid 5095] <... write resumed>) = 524288 [pid 5094] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... openat resumed>) = 4 [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... chdir resumed>) = 0 [pid 5093] <... futex resumed>) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5093] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5088] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5088] <... futex resumed>) = 0 [pid 5093] memfd_create("syzkaller", 0 [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5093] <... memfd_create resumed>) = 4 [pid 5097] <... mount resumed>) = 0 [pid 5096] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5094] <... futex resumed>) = 1 [pid 5089] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] <... futex resumed>) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5089] openat(AT_FDCWD, ".", O_RDONLY [pid 5086] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = 1 [pid 5093] <... mmap resumed>) = 0x7f6dade00000 [pid 5089] <... openat resumed>) = 5 [pid 5087] <... futex resumed>) = 0 [pid 5086] <... futex resumed>) = 0 [pid 5096] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5091] <... futex resumed>) = 0 [pid 5089] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5097] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5091] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5097] <... openat resumed>) = 3 [pid 5096] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5094] <... futex resumed>) = 0 [pid 5091] <... futex resumed>) = 1 [pid 5089] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5086] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] memfd_create("syzkaller", 0 [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] <... futex resumed>) = 0 [pid 5095] munmap(0x7f6dade00000, 138412032 [pid 5094] <... memfd_create resumed>) = 4 [pid 5089] renameat2(5, "./file2", 4, "./file1", 0 [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5097] chdir("./file2" [pid 5096] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5095] <... munmap resumed>) = 0 [pid 5094] <... mmap resumed>) = 0x7f6dade00000 [pid 5089] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5097] <... chdir resumed>) = 0 [pid 5096] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5089] <... futex resumed>) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5097] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5096] <... futex resumed>) = 1 [pid 5095] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] <... futex resumed>) = 0 [pid 5086] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5097] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5096] memfd_create("syzkaller", 0 [pid 5095] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5087] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5096] <... memfd_create resumed>) = 4 [pid 5095] close(4 [pid 5089] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5087] <... futex resumed>) = 0 [pid 5086] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5097] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... futex resumed>) = 0 [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5097] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5096] <... mmap resumed>) = 0x7f6dade00000 [pid 5094] <... write resumed>) = 524288 [pid 5093] <... write resumed>) = 524288 [pid 5090] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5095] <... close resumed>) = 0 [pid 5090] <... futex resumed>) = 0 [pid 5089] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... futex resumed>) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5089] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] exit_group(0 [pid 5089] <... futex resumed>) = ? [pid 5086] <... exit_group resumed>) = ? [pid 5089] +++ exited with 0 +++ [pid 5086] +++ exited with 0 +++ [pid 5097] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5095] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5095] <... futex resumed>) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5095] openat(AT_FDCWD, ".", O_RDONLY [pid 5092] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... openat resumed>) = 4 [pid 5092] <... futex resumed>) = 0 [pid 5095] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] munmap(0x7f6dade00000, 138412032 [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5097] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] <... futex resumed>) = 1 [pid 5096] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5095] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] <... munmap resumed>) = 0 [pid 5093] munmap(0x7f6dade00000, 138412032 [pid 5092] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5097] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5092] <... futex resumed>) = 0 [pid 5090] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... openat resumed>) = 3 [pid 5097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5095] openat(AT_FDCWD, ".", O_RDONLY [pid 5094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... futex resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5097] memfd_create("syzkaller", 0 [pid 5095] <... openat resumed>) = 5 [pid 5094] close(4 [pid 5093] <... munmap resumed>) = 0 [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5097] <... memfd_create resumed>) = 4 [pid 5095] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5095] <... futex resumed>) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5095] renameat2(5, "./file2", 4, "./file1", 0 [pid 5092] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5095] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5092] <... futex resumed>) = 0 [pid 5095] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5095] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] close(4 [pid 5092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5092] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5095] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5092] <... futex resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5097] <... mmap resumed>) = 0x7f6dade00000 [pid 5095] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5092] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5095] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] unlink("./2/binderfs" [pid 5097] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5095] <... futex resumed>) = 0 [pid 5094] <... futex resumed>) = 1 [pid 5092] exit_group(0 [pid 5091] <... futex resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5094] openat(AT_FDCWD, ".", O_RDONLY [pid 5092] <... exit_group resumed>) = ? [pid 5091] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5095] +++ exited with 0 +++ [pid 5094] <... openat resumed>) = 4 [pid 5093] <... close resumed>) = 0 [pid 5092] +++ exited with 0 +++ [pid 5091] <... futex resumed>) = 0 [pid 5096] <... write resumed>) = 524288 [pid 5093] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] munmap(0x7f6dade00000, 138412032 [pid 5094] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... futex resumed>) = 1 [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5088] <... futex resumed>) = 0 [pid 5094] <... futex resumed>) = 0 [pid 5093] openat(AT_FDCWD, ".", O_RDONLY [pid 5091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5088] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5096] <... munmap resumed>) = 0 [pid 5094] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] <... openat resumed>) = 4 [pid 5091] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5096] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5091] <... futex resumed>) = 0 [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... restart_syscall resumed>) = 0 [pid 5097] <... write resumed>) = 524288 [pid 5096] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] openat(AT_FDCWD, ".", O_RDONLY [pid 5093] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5097] munmap(0x7f6dade00000, 138412032 [pid 5096] close(4 [pid 5094] <... openat resumed>) = 5 [pid 5093] <... futex resumed>) = 0 [pid 5088] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5097] <... munmap resumed>) = 0 [pid 5096] <... close resumed>) = 0 [pid 5094] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] openat(AT_FDCWD, ".", O_RDONLY [pid 5088] <... futex resumed>) = 0 [pid 5054] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = 0 [pid 5097] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5096] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 1 [pid 5093] <... openat resumed>) = 5 [pid 5091] <... futex resumed>) = 0 [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5097] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5096] <... futex resumed>) = 1 [pid 5094] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5087] <... futex resumed>) = 0 [pid 5097] close(4 [pid 5096] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5093] <... futex resumed>) = 0 [pid 5091] <... futex resumed>) = 0 [pid 5088] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] <... close resumed>) = 0 [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] renameat2(5, "./file2", 4, "./file1", 0 [pid 5093] renameat2(5, "./file2", 4, "./file1", 0 [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5088] <... futex resumed>) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./2/file2", [pid 5094] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5096] openat(AT_FDCWD, ".", O_RDONLY [pid 5094] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... openat resumed>) = 3 [pid 5096] <... openat resumed>) = 4 [pid 5094] <... futex resumed>) = 1 [pid 5093] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] <... futex resumed>) = 0 [pid 5088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5096] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] <... futex resumed>) = 0 [pid 5091] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(3, "", [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = 1 [pid 5094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5093] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5091] <... futex resumed>) = 0 [pid 5088] <... futex resumed>) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5097] <... futex resumed>) = 1 [pid 5096] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5093] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5091] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... futex resumed>) = 0 [pid 5088] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5097] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5093] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5087] <... futex resumed>) = 0 [pid 5054] getdents64(3, [pid 5053] <... openat resumed>) = 4 [pid 5097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] openat(AT_FDCWD, ".", O_RDONLY [pid 5094] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... futex resumed>) = 0 [pid 5090] <... futex resumed>) = 0 [pid 5088] exit_group(0 [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5097] openat(AT_FDCWD, ".", O_RDONLY [pid 5096] <... openat resumed>) = 5 [pid 5094] <... futex resumed>) = 1 [pid 5091] <... futex resumed>) = 0 [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5088] <... exit_group resumed>) = ? [pid 5053] newfstatat(4, "", [pid 5097] <... openat resumed>) = 4 [pid 5096] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] +++ exited with 0 +++ [pid 5091] exit_group(0 [pid 5088] +++ exited with 0 +++ [pid 5097] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = 1 [pid 5094] <... futex resumed>) = ? [pid 5091] <... exit_group resumed>) = ? [pid 5087] <... futex resumed>) = 0 [pid 5054] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5097] <... futex resumed>) = 1 [pid 5096] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] <... futex resumed>) = 0 [pid 5087] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5090] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] renameat2(5, "./file2", 4, "./file1", 0 [pid 5090] <... futex resumed>) = 0 [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5097] openat(AT_FDCWD, ".", O_RDONLY [pid 5096] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5094] +++ exited with 0 +++ [pid 5091] +++ exited with 0 +++ [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] unlink("./2/binderfs" [pid 5053] getdents64(4, [pid 5097] <... openat resumed>) = 5 [pid 5096] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... unlink resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5097] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = 1 [pid 5087] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5054] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5097] <... futex resumed>) = 1 [pid 5096] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5090] <... futex resumed>) = 0 [pid 5087] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5051] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5097] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5090] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = 0 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5087] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5097] renameat2(5, "./file2", 4, "./file1", 0 [pid 5096] <... futex resumed>) = 0 [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] close(4 [pid 5051] <... openat resumed>) = 3 [pid 5097] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5096] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] exit_group(0 [pid 5053] <... close resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5097] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = ? [pid 5087] <... exit_group resumed>) = ? [pid 5055] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./2/file2" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5097] <... futex resumed>) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] <... umount2 resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5090] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(3, "", [pid 5054] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] getdents64(3, [pid 5054] newfstatat(AT_FDCWD, "./2/file2", [pid 5053] close(3 [pid 5051] unlink("./2/binderfs" [pid 5097] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5090] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5097] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5096] +++ exited with 0 +++ [pid 5090] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] +++ exited with 0 +++ [pid 5055] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./2" [pid 5051] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5097] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] <... futex resumed>) = 0 [pid 5090] exit_group(0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5054] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5090] <... exit_group resumed>) = ? [pid 5056] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... openat resumed>) = 4 [pid 5097] +++ exited with 0 +++ [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] newfstatat(4, "", [pid 5056] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5053] <... rmdir resumed>) = 0 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] unlink("./2/binderfs" [pid 5054] getdents64(4, [pid 5053] mkdir("./3", 0777 [pid 5051] <... umount2 resumed>) = 0 [pid 5056] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... unlink resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] getdents64(4, [pid 5090] +++ exited with 0 +++ [pid 5056] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] close(4 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] unlink("./2/binderfs" [pid 5054] <... close resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5054] rmdir("./2/file2" [pid 5056] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./2/file2", [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5052] unlink("./2/binderfs" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./2/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] getdents64(3, [pid 5055] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] close(3 [pid 5055] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] newfstatat(AT_FDCWD, "./2/file2", [pid 5055] <... openat resumed>) = 4 [pid 5054] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(4, "", [pid 5056] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] rmdir("./2" [pid 5052] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(4, "", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5055] close(4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./2/file2" [pid 5056] <... openat resumed>) = 4 [pid 5054] mkdir("./3", 0777 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] getdents64(4, [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./2/file2", [pid 5055] close(3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] getdents64(4, [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] rmdir("./2" [pid 5054] <... openat resumed>) = 3 [pid 5052] umount2("./2/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(4, [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5051] close(4 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5056] close(4 [pid 5055] <... rmdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... close resumed>) = 0 [pid 5055] mkdir("./3", 0777 [pid 5052] <... openat resumed>) = 4 [pid 5051] rmdir("./2/file2" [pid 5056] rmdir("./2/file2" [pid 5052] newfstatat(4, "", [pid 5051] <... rmdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5056] getdents64(3, [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] close(3 [pid 5056] close(3 [pid 5051] <... close resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5052] getdents64(4, [pid 5056] rmdir("./2" [pid 5051] rmdir("./2" [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... rmdir resumed>) = 0 [pid 5052] getdents64(4, [pid 5055] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5052] close(4) = 0 [pid 5052] rmdir("./2/file2" [pid 5056] <... rmdir resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] mkdir("./3", 0777 [pid 5056] mkdir("./3", 0777 [pid 5053] close(3 [pid 5052] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5053] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./2"./strace-static-x86_64: Process 5098 attached ) = 0 [pid 5098] set_robust_list(0x555556b376a0, 24) = 0 [pid 5098] chdir("./3" [pid 5056] <... openat resumed>) = 3 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5098 [pid 5052] mkdir("./3", 0777 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5098] <... chdir resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5052] <... mkdir resumed>) = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] <... ioctl resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5098] write(3, "1000", 4 [pid 5054] close(3 [pid 5052] <... openat resumed>) = 3 [pid 5098] <... write resumed>) = 4 [pid 5054] <... close resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5098] close(3 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5098] <... close resumed>) = 0 [pid 5098] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 5099 attached [pid 5055] <... ioctl resumed>) = 0 [pid 5099] set_robust_list(0x555556b376a0, 24 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... ioctl resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5099 [pid 5051] <... ioctl resumed>) = 0 [pid 5098] <... futex resumed>) = 0 [pid 5098] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5099] <... set_robust_list resumed>) = 0 [pid 5098] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5099] chdir("./3" [pid 5098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5099] <... chdir resumed>) = 0 [pid 5098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] close(3 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] <... close resumed>) = 0 [pid 5098] <... mmap resumed>) = 0x7f6db6363000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5099] <... prctl resumed>) = 0 [pid 5098] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5099] setpgid(0, 0 [pid 5098] <... mprotect resumed>) = 0 [pid 5099] <... setpgid resumed>) = 0 [pid 5098] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5100 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5098] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5099] <... openat resumed>) = 3 [pid 5098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5051] close(3 [pid 5099] write(3, "1000", 4) = 4 [pid 5098] <... clone3 resumed> => {parent_tid=[5101]}, 88) = 5101 [pid 5051] <... close resumed>) = 0 [pid 5099] close(3 [pid 5098] rt_sigprocmask(SIG_SETMASK, [], [pid 5099] <... close resumed>) = 0 [pid 5098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5099] symlink("/dev/binderfs", "./binderfs" [pid 5098] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(3 [pid 5052] <... ioctl resumed>) = 0 [pid 5099] <... symlink resumed>) = 0 [pid 5098] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached ./strace-static-x86_64: Process 5100 attached [pid 5101] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5100] set_robust_list(0x555556b376a0, 24 [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... rseq resumed>) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5099] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5102 [pid 5099] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5102 attached NULL, 8) = 0 [pid 5102] set_robust_list(0x555556b376a0, 24 [pid 5101] set_robust_list(0x7f6db63839a0, 24 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5102] <... set_robust_list resumed>) = 0 [pid 5099] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5103 ./strace-static-x86_64: Process 5103 attached [pid 5102] chdir("./3" [pid 5101] <... set_robust_list resumed>) = 0 [pid 5100] chdir("./3" [pid 5099] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5052] close(3 [pid 5102] <... chdir resumed>) = 0 [pid 5101] rt_sigprocmask(SIG_SETMASK, [], [pid 5100] <... chdir resumed>) = 0 [pid 5099] <... mprotect resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5102] <... prctl resumed>) = 0 [pid 5103] set_robust_list(0x555556b376a0, 24 [pid 5101] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5103] <... set_robust_list resumed>) = 0 [pid 5102] setpgid(0, 0 [pid 5101] memfd_create("syzkaller", 0 [pid 5100] <... prctl resumed>) = 0 [pid 5099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5103] chdir("./3" [pid 5102] <... setpgid resumed>) = 0 [pid 5101] <... memfd_create resumed>) = 3 [pid 5100] setpgid(0, 0 [pid 5103] <... chdir resumed>) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5105 attached ) = 3 [pid 5099] <... clone3 resumed> => {parent_tid=[5105]}, 88) = 5105 ./strace-static-x86_64: Process 5104 attached [pid 5105] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] write(3, "1000", 4 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5100] <... setpgid resumed>) = 0 [pid 5099] rt_sigprocmask(SIG_SETMASK, [], [pid 5104] set_robust_list(0x555556b376a0, 24 [pid 5105] <... rseq resumed>) = 0 [pid 5102] <... write resumed>) = 4 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5101] <... mmap resumed>) = 0x7f6dade00000 [pid 5103] <... prctl resumed>) = 0 [pid 5104] <... set_robust_list resumed>) = 0 [pid 5105] set_robust_list(0x7f6db63839a0, 24 [pid 5102] close(3 [pid 5100] <... openat resumed>) = 3 [pid 5099] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5104 [pid 5104] chdir("./3" [pid 5105] <... set_robust_list resumed>) = 0 [pid 5102] <... close resumed>) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5104] <... chdir resumed>) = 0 [pid 5105] rt_sigprocmask(SIG_SETMASK, [], [pid 5102] symlink("/dev/binderfs", "./binderfs" [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5103] setpgid(0, 0 [pid 5101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5100] write(3, "1000", 4 [pid 5104] <... prctl resumed>) = 0 [pid 5105] memfd_create("syzkaller", 0 [pid 5103] <... setpgid resumed>) = 0 [pid 5100] <... write resumed>) = 4 [pid 5104] setpgid(0, 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] <... symlink resumed>) = 0 [pid 5100] close(3 [pid 5104] <... setpgid resumed>) = 0 [pid 5105] <... memfd_create resumed>) = 3 [pid 5103] <... openat resumed>) = 3 [pid 5100] <... close resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] symlink("/dev/binderfs", "./binderfs" [pid 5105] <... mmap resumed>) = 0x7f6dade00000 [pid 5103] write(3, "1000", 4 [pid 5102] <... futex resumed>) = 0 [pid 5100] <... symlink resumed>) = 0 [pid 5104] <... openat resumed>) = 3 [pid 5105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5103] <... write resumed>) = 4 [pid 5102] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] close(3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5102] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... close resumed>) = 0 [pid 5102] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5100] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = 0 [pid 5103] symlink("/dev/binderfs", "./binderfs" [pid 5102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5100] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5104] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5105] <... write resumed>) = 524288 [pid 5103] <... symlink resumed>) = 0 [pid 5102] <... mmap resumed>) = 0x7f6db6363000 [pid 5101] <... write resumed>) = 524288 [pid 5104] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5102] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5102] <... mprotect resumed>) = 0 [pid 5104] <... mmap resumed>) = 0x7f6db6363000 [pid 5103] <... futex resumed>) = 0 [pid 5100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5104] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5103] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5102] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5100] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] <... mprotect resumed>) = 0 [pid 5102] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5103] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5107 attached ./strace-static-x86_64: Process 5106 attached [pid 5103] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5100] <... mmap resumed>) = 0x7f6db6363000 [pid 5107] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5106] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5104] <... clone3 resumed> => {parent_tid=[5107]}, 88) = 5107 [pid 5105] munmap(0x7f6dade00000, 138412032 [pid 5103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5102] <... clone3 resumed> => {parent_tid=[5106]}, 88) = 5106 [pid 5101] munmap(0x7f6dade00000, 138412032 [pid 5100] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5107] <... rseq resumed>) = 0 [pid 5106] <... rseq resumed>) = 0 [pid 5104] rt_sigprocmask(SIG_SETMASK, [], [pid 5105] <... munmap resumed>) = 0 [pid 5103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5102] rt_sigprocmask(SIG_SETMASK, [], [pid 5107] set_robust_list(0x7f6db63839a0, 24 [pid 5106] set_robust_list(0x7f6db63839a0, 24 [pid 5104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5103] <... mmap resumed>) = 0x7f6db6363000 [pid 5101] <... munmap resumed>) = 0 [pid 5100] <... mprotect resumed>) = 0 [pid 5107] <... set_robust_list resumed>) = 0 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5104] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5103] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5102] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5100] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5107] rt_sigprocmask(SIG_SETMASK, [], [pid 5106] rt_sigprocmask(SIG_SETMASK, [], [pid 5104] <... futex resumed>) = 0 [pid 5105] <... openat resumed>) = 4 [pid 5103] <... mprotect resumed>) = 0 [pid 5102] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5100] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5107] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5106] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5105] ioctl(4, LOOP_SET_FD, 3 [pid 5103] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5102] <... futex resumed>) = 0 [pid 5100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5108 attached [pid 5107] memfd_create("syzkaller", 0 [pid 5106] memfd_create("syzkaller", 0 [pid 5105] <... ioctl resumed>) = 0 [pid 5103] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5101] <... openat resumed>) = 4 [pid 5108] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5107] <... memfd_create resumed>) = 3 [pid 5106] <... memfd_create resumed>) = 3 [pid 5105] close(3 [pid 5103] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5101] ioctl(4, LOOP_SET_FD, 3 [pid 5100] <... clone3 resumed> => {parent_tid=[5108]}, 88) = 5108 ./strace-static-x86_64: Process 5109 attached [pid 5108] <... rseq resumed>) = 0 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] <... close resumed>) = 0 [pid 5108] set_robust_list(0x7f6db63839a0, 24 [pid 5107] <... mmap resumed>) = 0x7f6dade00000 [pid 5106] <... mmap resumed>) = 0x7f6dade00000 [pid 5105] close(4 [pid 5108] <... set_robust_list resumed>) = 0 [pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5105] <... close resumed>) = 0 [pid 5108] rt_sigprocmask(SIG_SETMASK, [], [pid 5106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5100] rt_sigprocmask(SIG_SETMASK, [], [pid 5109] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5103] <... clone3 resumed> => {parent_tid=[5109]}, 88) = 5109 [pid 5100] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5100] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] rt_sigprocmask(SIG_SETMASK, [], [pid 5109] <... rseq resumed>) = 0 [pid 5103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5109] set_robust_list(0x7f6db63839a0, 24 [pid 5100] <... futex resumed>) = 0 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5103] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] rt_sigprocmask(SIG_SETMASK, [], [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5109] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5103] <... futex resumed>) = 0 [pid 5109] memfd_create("syzkaller", 0 [pid 5108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5105] mkdir("./file2", 0777 [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5109] <... memfd_create resumed>) = 3 [pid 5108] memfd_create("syzkaller", 0 [pid 5105] <... mkdir resumed>) = 0 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] <... memfd_create resumed>) = 3 [pid 5109] <... mmap resumed>) = 0x7f6dade00000 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5105] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5106] <... write resumed>) = 524288 [pid 5101] <... ioctl resumed>) = 0 [pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5101] close(3) = 0 [pid 5101] close(4) = 0 [pid 5101] mkdir("./file2", 0777 [pid 5109] <... write resumed>) = 524288 [pid 5107] <... write resumed>) = 524288 [pid 5101] <... mkdir resumed>) = 0 [pid 5105] <... mount resumed>) = 0 [ 80.042755][ T5105] loop3: detected capacity change from 0 to 1024 [ 80.052715][ T5101] loop2: detected capacity change from 0 to 1024 [pid 5101] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5105] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5105] chdir("./file2" [pid 5107] munmap(0x7f6dade00000, 138412032 [pid 5106] munmap(0x7f6dade00000, 138412032 [pid 5107] <... munmap resumed>) = 0 [pid 5106] <... munmap resumed>) = 0 [pid 5105] <... chdir resumed>) = 0 [pid 5108] <... write resumed>) = 524288 [pid 5109] munmap(0x7f6dade00000, 138412032 [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5106] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5105] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5101] <... mount resumed>) = 0 [pid 5107] <... openat resumed>) = 4 [pid 5105] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5109] <... munmap resumed>) = 0 [pid 5108] munmap(0x7f6dade00000, 138412032 [pid 5107] ioctl(4, LOOP_SET_FD, 3 [pid 5106] <... openat resumed>) = 4 [pid 5105] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... openat resumed>) = 3 [pid 5108] <... munmap resumed>) = 0 [pid 5107] <... ioctl resumed>) = 0 [pid 5106] ioctl(4, LOOP_SET_FD, 3 [pid 5105] <... futex resumed>) = 1 [pid 5101] chdir("./file2" [pid 5099] <... futex resumed>) = 0 [pid 5105] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] <... chdir resumed>) = 0 [pid 5099] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5108] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5099] <... futex resumed>) = 0 [pid 5108] <... openat resumed>) = 4 [pid 5105] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5101] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... openat resumed>) = 4 [pid 5101] <... futex resumed>) = 1 [pid 5098] <... futex resumed>) = 0 [pid 5109] ioctl(4, LOOP_SET_FD, 3 [pid 5108] ioctl(4, LOOP_SET_FD, 3 [pid 5105] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5101] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] <... futex resumed>) = 0 [pid 5105] <... futex resumed>) = 1 [pid 5101] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... ioctl resumed>) = 0 [pid 5107] close(3 [pid 5106] <... ioctl resumed>) = 0 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5107] <... close resumed>) = 0 [pid 5106] close(3 [pid 5105] memfd_create("syzkaller", 0 [pid 5101] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5098] <... futex resumed>) = 0 [pid 5105] <... memfd_create resumed>) = 4 [pid 5107] close(4 [pid 5098] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] <... close resumed>) = 0 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5107] mkdir("./file2", 0777 [pid 5106] <... close resumed>) = 0 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5101] memfd_create("syzkaller", 0 [pid 5105] <... mmap resumed>) = 0x7f6dade00000 [pid 5101] <... memfd_create resumed>) = 4 [pid 5106] close(4 [pid 5107] <... mkdir resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5106] mkdir("./file2", 0777) = 0 [pid 5109] close(3) = 0 [pid 5109] close(4) = 0 [pid 5107] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5109] mkdir("./file2", 0777) = 0 [pid 5106] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5105] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5109] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5101] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5108] <... ioctl resumed>) = 0 [pid 5108] close(3) = 0 [pid 5108] close(4) = 0 [pid 5108] mkdir("./file2", 0777) = 0 [pid 5107] <... mount resumed>) = 0 [pid 5108] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5107] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [ 80.127008][ T5107] loop1: detected capacity change from 0 to 1024 [ 80.140139][ T5106] loop0: detected capacity change from 0 to 1024 [ 80.148957][ T5109] loop5: detected capacity change from 0 to 1024 [ 80.168060][ T5108] loop4: detected capacity change from 0 to 1024 [pid 5107] chdir("./file2") = 0 [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5109] <... mount resumed>) = 0 [pid 5108] <... mount resumed>) = 0 [pid 5105] <... write resumed>) = 524288 [pid 5101] <... write resumed>) = 524288 [pid 5109] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5108] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5107] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] <... openat resumed>) = 3 [pid 5108] <... openat resumed>) = 3 [pid 5107] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] chdir("./file2" [pid 5107] <... futex resumed>) = 1 [pid 5106] <... mount resumed>) = 0 [pid 5104] <... futex resumed>) = 0 [pid 5101] munmap(0x7f6dade00000, 138412032 [pid 5109] chdir("./file2" [pid 5108] <... chdir resumed>) = 0 [pid 5106] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5104] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... chdir resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5107] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5106] <... openat resumed>) = 3 [pid 5104] <... futex resumed>) = 0 [pid 5101] <... munmap resumed>) = 0 [pid 5109] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5108] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5106] chdir("./file2" [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5108] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5106] <... chdir resumed>) = 0 [pid 5105] munmap(0x7f6dade00000, 138412032 [pid 5101] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5109] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... futex resumed>) = 1 [pid 5107] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5100] <... futex resumed>) = 0 [pid 5109] <... futex resumed>) = 1 [pid 5108] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5107] <... futex resumed>) = 1 [pid 5106] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] <... futex resumed>) = 0 [pid 5105] <... munmap resumed>) = 0 [pid 5103] <... futex resumed>) = 0 [pid 5101] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5107] memfd_create("syzkaller", 0 [pid 5106] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5103] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] close(4 [pid 5100] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5108] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5107] <... memfd_create resumed>) = 4 [pid 5106] <... futex resumed>) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 0 [pid 5102] <... futex resumed>) = 0 [pid 5100] <... futex resumed>) = 0 [pid 5109] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5106] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5105] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5107] <... mmap resumed>) = 0x7f6dade00000 [pid 5105] close(4 [pid 5102] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5101] <... close resumed>) = 0 [pid 5109] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 1 [pid 5100] <... futex resumed>) = 0 [pid 5109] <... futex resumed>) = 1 [pid 5108] memfd_create("syzkaller", 0 [pid 5103] <... futex resumed>) = 0 [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] memfd_create("syzkaller", 0 [pid 5108] <... memfd_create resumed>) = 4 [pid 5106] <... futex resumed>) = 0 [pid 5103] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 0 [pid 5109] <... memfd_create resumed>) = 4 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5107] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5106] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5105] <... close resumed>) = 0 [pid 5103] <... futex resumed>) = 0 [pid 5101] <... futex resumed>) = 1 [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5098] <... futex resumed>) = 0 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] <... mmap resumed>) = 0x7f6dade00000 [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5109] <... mmap resumed>) = 0x7f6dade00000 [pid 5108] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5107] <... write resumed>) = 524288 [pid 5106] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5105] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] openat(AT_FDCWD, ".", O_RDONLY [pid 5098] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5098] <... futex resumed>) = 0 [pid 5101] <... openat resumed>) = 4 [pid 5109] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5105] openat(AT_FDCWD, ".", O_RDONLY [pid 5101] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] openat(AT_FDCWD, ".", O_RDONLY [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... futex resumed>) = 0 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5106] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... openat resumed>) = 5 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] <... openat resumed>) = 4 [pid 5101] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] memfd_create("syzkaller", 0 [pid 5105] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 1 [pid 5098] <... futex resumed>) = 0 [pid 5105] <... futex resumed>) = 1 [pid 5106] <... memfd_create resumed>) = 4 [pid 5102] <... futex resumed>) = 0 [pid 5101] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = 0 [pid 5106] <... mmap resumed>) = 0x7f6dade00000 [pid 5105] openat(AT_FDCWD, ".", O_RDONLY [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... openat resumed>) = 5 [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] munmap(0x7f6dade00000, 138412032) = 0 [pid 5105] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] renameat2(5, "./file2", 4, "./file1", 0) = -1 ENOENT (No such file or directory) [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5101] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5105] <... futex resumed>) = 1 [pid 5101] <... futex resumed>) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5098] <... futex resumed>) = 0 [pid 5107] close(4 [pid 5105] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5099] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... write resumed>) = 524288 [pid 5108] <... write resumed>) = 524288 [pid 5107] <... close resumed>) = 0 [pid 5106] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5099] <... futex resumed>) = 0 [pid 5098] <... futex resumed>) = 0 [pid 5109] munmap(0x7f6dade00000, 138412032) = 0 [pid 5098] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5105] renameat2(5, "./file2", 4, "./file1", 0 [pid 5101] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5105] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5101] <... futex resumed>) = 1 [pid 5098] <... futex resumed>) = 0 [pid 5109] close(4 [pid 5108] munmap(0x7f6dade00000, 138412032 [pid 5107] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] exit_group(0 [pid 5109] <... close resumed>) = 0 [pid 5107] <... futex resumed>) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5098] <... exit_group resumed>) = ? [pid 5104] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5107] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 1 [pid 5106] <... write resumed>) = 524288 [pid 5104] <... futex resumed>) = 0 [pid 5105] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = ? [pid 5109] <... futex resumed>) = 1 [pid 5108] <... munmap resumed>) = 0 [pid 5107] openat(AT_FDCWD, ".", O_RDONLY [pid 5104] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5109] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5107] <... openat resumed>) = 5 [pid 5104] <... futex resumed>) = 0 [pid 5103] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5108] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5107] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... futex resumed>) = 1 [pid 5103] <... futex resumed>) = 0 [pid 5101] +++ exited with 0 +++ [pid 5099] <... futex resumed>) = 0 [pid 5098] +++ exited with 0 +++ [pid 5109] openat(AT_FDCWD, ".", O_RDONLY [pid 5108] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5109] <... openat resumed>) = 4 [pid 5107] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] <... futex resumed>) = 0 [pid 5109] <... futex resumed>) = 1 [pid 5107] renameat2(5, "./file2", 4, "./file1", 0 [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] <... futex resumed>) = 0 [pid 5109] openat(AT_FDCWD, ".", O_RDONLY [pid 5108] close(4 [pid 5107] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5103] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... openat resumed>) = 5 [pid 5107] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = 0 [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5109] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 1 [pid 5104] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5109] <... futex resumed>) = 0 [pid 5108] <... close resumed>) = 0 [pid 5107] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5104] <... futex resumed>) = 0 [pid 5105] <... futex resumed>) = 0 [pid 5103] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 1 [pid 5053] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5109] renameat2(5, "./file2", 4, "./file1", 0 [pid 5107] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5106] munmap(0x7f6dade00000, 138412032 [pid 5104] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5103] <... futex resumed>) = 0 [pid 5099] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... openat resumed>) = 3 [pid 5109] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5108] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... munmap resumed>) = 0 [pid 5105] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] newfstatat(3, "", [pid 5109] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... futex resumed>) = 1 [pid 5107] <... futex resumed>) = 1 [pid 5106] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5104] <... futex resumed>) = 0 [pid 5105] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5100] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5109] <... futex resumed>) = 0 [pid 5108] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5107] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] <... futex resumed>) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5109] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5104] exit_group(0 [pid 5105] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5103] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] exit_group(0 [pid 5053] getdents64(3, [pid 5109] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5107] <... futex resumed>) = ? [pid 5106] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] <... exit_group resumed>) = ? [pid 5105] <... futex resumed>) = ? [pid 5103] <... futex resumed>) = 0 [pid 5099] <... exit_group resumed>) = ? [pid 5109] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] openat(AT_FDCWD, ".", O_RDONLY [pid 5107] +++ exited with 0 +++ [pid 5106] close(4 [pid 5104] +++ exited with 0 +++ [pid 5105] +++ exited with 0 +++ [pid 5103] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... futex resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5109] <... futex resumed>) = 0 [pid 5108] <... openat resumed>) = 4 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] +++ exited with 0 +++ [pid 5053] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5109] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] exit_group(0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5109] <... futex resumed>) = ? [pid 5108] <... futex resumed>) = 1 [pid 5103] <... exit_group resumed>) = ? [pid 5100] <... futex resumed>) = 0 [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5053] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5052] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5109] +++ exited with 0 +++ [pid 5108] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5103] +++ exited with 0 +++ [pid 5100] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... restart_syscall resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5100] <... futex resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5053] unlink("./3/binderfs" [pid 5052] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5108] openat(AT_FDCWD, ".", O_RDONLY [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5108] <... openat resumed>) = 5 [pid 5106] <... close resumed>) = 0 [pid 5054] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(3, "", [pid 5108] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5108] <... futex resumed>) = 1 [pid 5100] <... futex resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(3, [pid 5108] renameat2(5, "./file2", 4, "./file1", 0 [pid 5106] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5100] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... openat resumed>) = 3 [pid 5108] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5106] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 0 [pid 5056] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] newfstatat(3, "", [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5108] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5102] <... futex resumed>) = 0 [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5108] <... futex resumed>) = 0 [pid 5106] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5108] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] <... openat resumed>) = 4 [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... openat resumed>) = 3 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5106] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5100] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(3, "", [pid 5054] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5108] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 0 [pid 5102] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 1 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5108] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5106] openat(AT_FDCWD, ".", O_RDONLY [pid 5102] <... futex resumed>) = 0 [pid 5100] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(3, [pid 5053] <... umount2 resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5108] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5106] <... openat resumed>) = 5 [pid 5108] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5108] <... futex resumed>) = 1 [pid 5106] <... futex resumed>) = 0 [pid 5102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5100] <... futex resumed>) = 0 [pid 5052] unlink("./3/binderfs" [pid 5108] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] exit_group(0 [pid 5056] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... unlink resumed>) = 0 [pid 5108] <... futex resumed>) = ? [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5102] <... futex resumed>) = 0 [pid 5100] <... exit_group resumed>) = ? [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5108] +++ exited with 0 +++ [pid 5106] renameat2(5, "./file2", 4, "./file1", 0 [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] +++ exited with 0 +++ [pid 5056] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5106] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5054] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5053] newfstatat(AT_FDCWD, "./3/file2", [pid 5052] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5106] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] unlink("./3/binderfs" [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5106] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... unlink resumed>) = 0 [pid 5054] unlink("./3/binderfs" [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5102] <... futex resumed>) = 0 [pid 5056] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5106] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5102] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5054] <... unlink resumed>) = 0 [pid 5053] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5106] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5106] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5106] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] exit_group(0 [pid 5053] <... openat resumed>) = 4 [pid 5106] <... futex resumed>) = ? [pid 5102] <... exit_group resumed>) = ? [pid 5055] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5106] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5102] +++ exited with 0 +++ [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] newfstatat(4, "", [pid 5056] <... umount2 resumed>) = 0 [pid 5055] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5056] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] newfstatat(AT_FDCWD, "./3/file2", [pid 5053] getdents64(4, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./3/binderfs" [pid 5054] <... umount2 resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... unlink resumed>) = 0 [pid 5054] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] newfstatat(AT_FDCWD, "./3/file2", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] newfstatat(AT_FDCWD, "./3/file2", [pid 5053] close(4 [pid 5056] <... openat resumed>) = 4 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... close resumed>) = 0 [pid 5053] rmdir("./3/file2" [pid 5051] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] newfstatat(4, "", [pid 5054] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... rmdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(4, [pid 5054] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] newfstatat(4, "", [pid 5056] getdents64(4, [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, [pid 5051] newfstatat(3, "", [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] getdents64(4, [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] close(4 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... close resumed>) = 0 [pid 5054] getdents64(4, [pid 5053] close(3 [pid 5056] rmdir("./3/file2" [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(3, [pid 5056] <... rmdir resumed>) = 0 [pid 5054] close(4 [pid 5053] rmdir("./3" [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... close resumed>) = 0 [pid 5054] rmdir("./3/file2" [pid 5056] getdents64(3, [pid 5054] <... rmdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5053] mkdir("./4", 0777 [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5054] getdents64(3, [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./3" [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] close(3 [pid 5052] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5054] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] newfstatat(4, "", [pid 5051] unlink("./3/binderfs" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] mkdir("./4", 0777 [pid 5055] newfstatat(AT_FDCWD, "./3/file2", [pid 5054] rmdir("./3" [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] getdents64(4, [pid 5051] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] mkdir("./4", 0777 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] <... mkdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 4 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] newfstatat(4, "", [pid 5052] getdents64(4, [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] <... umount2 resumed>) = 0 [pid 5055] getdents64(4, [pid 5052] close(4 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] <... openat resumed>) = 3 [pid 5052] <... close resumed>) = 0 [pid 5051] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5052] rmdir("./3/file2" [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./3/file2", [pid 5055] close(4 [pid 5052] getdents64(3, [pid 5055] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] rmdir("./3/file2" [pid 5052] close(3 [pid 5051] umount2("./3/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... rmdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(3, [pid 5052] rmdir("./3" [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] close(3) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5055] rmdir("./3" [pid 5051] newfstatat(4, "", [pid 5052] mkdir("./4", 0777 [pid 5055] <... rmdir resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] mkdir("./4", 0777 [pid 5051] getdents64(4, [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... mkdir resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] getdents64(4, [pid 5055] <... openat resumed>) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5051] close(4) = 0 [pid 5051] rmdir("./3/file2") = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] close(3) = 0 [pid 5051] rmdir("./3") = 0 [pid 5051] mkdir("./4", 0777) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5056] <... ioctl resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5056] close(3) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5110 attached , child_tidptr=0x555556b37690) = 5110 [pid 5110] set_robust_list(0x555556b376a0, 24 [pid 5054] <... ioctl resumed>) = 0 [pid 5110] <... set_robust_list resumed>) = 0 [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b37690) = 5111 [pid 5110] chdir("./4") = 0 ./strace-static-x86_64: Process 5111 attached [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] set_robust_list(0x555556b376a0, 24 [pid 5110] <... prctl resumed>) = 0 [pid 5054] close(3 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] setpgid(0, 0 [pid 5054] <... close resumed>) = 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5111] chdir("./4" [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... ioctl resumed>) = 0 [pid 5111] <... chdir resumed>) = 0 [pid 5052] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5112 attached [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] <... openat resumed>) = 3 [pid 5055] <... ioctl resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5112 [pid 5051] close(3 [pid 5052] close(3) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 [pid 5111] <... prctl resumed>) = 0 [pid 5110] write(3, "1000", 4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5112] set_robust_list(0x555556b376a0, 24./strace-static-x86_64: Process 5113 attached ) = 0 [pid 5111] setpgid(0, 0 [pid 5110] <... write resumed>) = 4 [pid 5055] close(3 [pid 5111] <... setpgid resumed>) = 0 [pid 5112] chdir("./4" [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] close(3 [pid 5055] <... close resumed>) = 0 [pid 5113] set_robust_list(0x555556b376a0, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5114 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5113 [pid 5110] <... close resumed>) = 0 [pid 5111] <... openat resumed>) = 3 [pid 5110] symlink("/dev/binderfs", "./binderfs" [pid 5113] <... set_robust_list resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5113] chdir("./4" [pid 5111] write(3, "1000", 4 [pid 5110] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5114 attached [pid 5113] <... chdir resumed>) = 0 [pid 5114] set_robust_list(0x555556b376a0, 24 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5112] <... chdir resumed>) = 0 [pid 5111] <... write resumed>) = 4 [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5110] <... futex resumed>) = 0 [pid 5111] close(3 [pid 5113] <... prctl resumed>) = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] chdir("./4" [pid 5113] setpgid(0, 0 [pid 5112] <... prctl resumed>) = 0 [pid 5111] <... close resumed>) = 0 [pid 5110] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5112] setpgid(0, 0 [pid 5111] symlink("/dev/binderfs", "./binderfs" [pid 5114] <... chdir resumed>) = 0 [pid 5113] <... setpgid resumed>) = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5114] setpgid(0, 0 [pid 5111] <... symlink resumed>) = 0 [pid 5114] <... setpgid resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5112] <... setpgid resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] <... openat resumed>) = 3 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... openat resumed>) = 3 [pid 5113] write(3, "1000", 4 [pid 5112] <... openat resumed>) = 3 [pid 5111] <... futex resumed>) = 0 [pid 5110] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5113] <... write resumed>) = 4 [pid 5110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5114] write(3, "1000", 4 [pid 5113] close(3 [pid 5112] write(3, "1000", 4 [pid 5111] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5110] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5116 attached [pid 5114] <... write resumed>) = 4 [pid 5113] <... close resumed>) = 0 [pid 5112] <... write resumed>) = 4 [pid 5111] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5114] close(3 [pid 5113] symlink("/dev/binderfs", "./binderfs" [pid 5112] close(3 [pid 5111] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5110] <... mmap resumed>) = 0x7f6db6363000 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5116 [pid 5116] set_robust_list(0x555556b376a0, 24 [pid 5114] <... close resumed>) = 0 [pid 5113] <... symlink resumed>) = 0 [pid 5112] <... close resumed>) = 0 [pid 5111] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5110] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5116] <... set_robust_list resumed>) = 0 [pid 5114] symlink("/dev/binderfs", "./binderfs" [pid 5112] symlink("/dev/binderfs", "./binderfs" [pid 5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5110] <... mprotect resumed>) = 0 [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] chdir("./4" [pid 5114] <... symlink resumed>) = 0 [pid 5112] <... symlink resumed>) = 0 [pid 5111] <... mmap resumed>) = 0x7f6db6363000 [pid 5110] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5116] <... chdir resumed>) = 0 [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] <... futex resumed>) = 0 [pid 5113] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5111] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5116] <... prctl resumed>) = 0 [pid 5114] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5113] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5112] <... futex resumed>) = 0 [pid 5116] setpgid(0, 0 [pid 5114] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5111] <... mprotect resumed>) = 0 [pid 5110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5116] <... setpgid resumed>) = 0 [pid 5114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5112] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5116] <... openat resumed>) = 3 [pid 5114] <... mmap resumed>) = 0x7f6db6363000 [pid 5113] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5111] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5110] <... clone3 resumed> => {parent_tid=[5117]}, 88) = 5117 [pid 5116] write(3, "1000", 4 [pid 5114] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5113] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5111] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5110] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5117 attached [pid 5116] <... write resumed>) = 4 [pid 5114] <... mprotect resumed>) = 0 [pid 5113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5117] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5114] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5110] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... mmap resumed>) = 0x7f6db6363000 ./strace-static-x86_64: Process 5118 attached [pid 5117] <... rseq resumed>) = 0 [pid 5116] close(3 [pid 5114] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5113] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5111] <... clone3 resumed> => {parent_tid=[5118]}, 88) = 5118 [pid 5110] <... futex resumed>) = 0 [pid 5118] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5117] set_robust_list(0x7f6db63839a0, 24 [pid 5116] <... close resumed>) = 0 [pid 5112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5111] rt_sigprocmask(SIG_SETMASK, [], [pid 5118] <... rseq resumed>) = 0 [pid 5117] <... set_robust_list resumed>) = 0 [pid 5116] symlink("/dev/binderfs", "./binderfs" [pid 5114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5113] <... mprotect resumed>) = 0 [pid 5112] <... mmap resumed>) = 0x7f6db6363000 [pid 5111] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5119 attached [pid 5118] set_robust_list(0x7f6db63839a0, 24 [pid 5117] rt_sigprocmask(SIG_SETMASK, [], [pid 5111] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5117] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5114] <... clone3 resumed> => {parent_tid=[5119]}, 88) = 5119 [pid 5111] <... futex resumed>) = 0 [pid 5112] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5119] <... rseq resumed>) = 0 [pid 5118] rt_sigprocmask(SIG_SETMASK, [], [pid 5117] memfd_create("syzkaller", 0 [pid 5113] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5118] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] <... mprotect resumed>) = 0 [pid 5119] set_robust_list(0x7f6db63839a0, 24 [pid 5118] memfd_create("syzkaller", 0 [pid 5117] <... memfd_create resumed>) = 3 [pid 5114] rt_sigprocmask(SIG_SETMASK, [], [pid 5113] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5112] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5119] <... set_robust_list resumed>) = 0 [pid 5118] <... memfd_create resumed>) = 3 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5113] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5112] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5119] rt_sigprocmask(SIG_SETMASK, [], [pid 5117] <... mmap resumed>) = 0x7f6dade00000 [pid 5114] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5120 attached [pid 5119] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5116] <... symlink resumed>) = 0 [pid 5114] <... futex resumed>) = 0 [pid 5112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5121 attached [pid 5120] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5119] memfd_create("syzkaller", 0 [pid 5118] <... mmap resumed>) = 0x7f6dade00000 [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5113] <... clone3 resumed> => {parent_tid=[5120]}, 88) = 5120 [pid 5121] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5120] <... rseq resumed>) = 0 [pid 5119] <... memfd_create resumed>) = 3 [pid 5117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5116] <... futex resumed>) = 0 [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5116] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5121] <... rseq resumed>) = 0 [pid 5120] set_robust_list(0x7f6db63839a0, 24 [pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5113] rt_sigprocmask(SIG_SETMASK, [], [pid 5112] <... clone3 resumed> => {parent_tid=[5121]}, 88) = 5121 [pid 5121] set_robust_list(0x7f6db63839a0, 24 [pid 5120] <... set_robust_list resumed>) = 0 [pid 5117] <... write resumed>) = 524288 [pid 5116] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5113] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] rt_sigprocmask(SIG_SETMASK, [], [pid 5113] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5121] <... set_robust_list resumed>) = 0 [pid 5120] rt_sigprocmask(SIG_SETMASK, [], [pid 5116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5113] <... futex resumed>) = 0 [pid 5112] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] rt_sigprocmask(SIG_SETMASK, [], [pid 5120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5116] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5112] <... futex resumed>) = 0 [pid 5121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5120] memfd_create("syzkaller", 0 [pid 5119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5118] <... write resumed>) = 524288 [pid 5116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5121] memfd_create("syzkaller", 0) = 3 [pid 5120] <... memfd_create resumed>) = 3 [pid 5119] <... write resumed>) = 524288 [pid 5118] munmap(0x7f6dade00000, 138412032 [pid 5117] munmap(0x7f6dade00000, 138412032 [pid 5116] <... mmap resumed>) = 0x7f6db6363000 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] <... munmap resumed>) = 0 [pid 5117] <... munmap resumed>) = 0 [pid 5116] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5120] <... mmap resumed>) = 0x7f6dade00000 [pid 5116] <... mprotect resumed>) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5117] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5121] <... mmap resumed>) = 0x7f6dade00000 [pid 5118] <... openat resumed>) = 4 [pid 5117] <... openat resumed>) = 4 [pid 5116] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5119] munmap(0x7f6dade00000, 138412032 [pid 5118] ioctl(4, LOOP_SET_FD, 3 [pid 5117] ioctl(4, LOOP_SET_FD, 3 [pid 5116] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5117] <... ioctl resumed>) = 0 [pid 5119] <... munmap resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5119] ioctl(4, LOOP_SET_FD, 3 [pid 5121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5118] <... ioctl resumed>) = 0 [pid 5116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5118] close(3) = 0 [pid 5118] close(4 [pid 5116] <... clone3 resumed> => {parent_tid=[5122]}, 88) = 5122 ./strace-static-x86_64: Process 5122 attached [pid 5116] rt_sigprocmask(SIG_SETMASK, [], [pid 5118] <... close resumed>) = 0 [pid 5122] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5116] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5117] close(3) = 0 [pid 5122] <... rseq resumed>) = 0 [pid 5118] mkdir("./file2", 0777 [pid 5117] close(4 [pid 5116] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] set_robust_list(0x7f6db63839a0, 24 [pid 5117] <... close resumed>) = 0 [pid 5116] <... futex resumed>) = 0 [pid 5117] mkdir("./file2", 0777 [pid 5122] <... set_robust_list resumed>) = 0 [pid 5118] <... mkdir resumed>) = 0 [pid 5117] <... mkdir resumed>) = 0 [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5122] rt_sigprocmask(SIG_SETMASK, [], [pid 5119] <... ioctl resumed>) = 0 [pid 5117] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5122] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5119] close(3 [pid 5122] memfd_create("syzkaller", 0 [pid 5119] <... close resumed>) = 0 [pid 5122] <... memfd_create resumed>) = 3 [pid 5119] close(4 [pid 5118] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5120] <... write resumed>) = 524288 [pid 5119] <... close resumed>) = 0 [pid 5122] <... mmap resumed>) = 0x7f6dade00000 [pid 5121] <... write resumed>) = 524288 [pid 5120] munmap(0x7f6dade00000, 138412032 [pid 5119] mkdir("./file2", 0777) = 0 [pid 5117] <... mount resumed>) = 0 [pid 5117] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5120] <... munmap resumed>) = 0 [pid 5121] munmap(0x7f6dade00000, 138412032 [pid 5117] <... openat resumed>) = 3 [pid 5117] chdir("./file2" [pid 5121] <... munmap resumed>) = 0 [pid 5119] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5117] <... chdir resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5117] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 80.768537][ T5117] loop5: detected capacity change from 0 to 1024 [ 80.776503][ T5118] loop2: detected capacity change from 0 to 1024 [ 80.781678][ T5119] loop1: detected capacity change from 0 to 1024 [pid 5122] <... write resumed>) = 524288 [pid 5121] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5120] <... openat resumed>) = 4 [pid 5119] <... mount resumed>) = 0 [pid 5117] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5117] <... futex resumed>) = 1 [pid 5119] <... openat resumed>) = 3 [pid 5117] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] <... openat resumed>) = 4 [pid 5110] <... futex resumed>) = 0 [pid 5120] ioctl(4, LOOP_SET_FD, 3 [pid 5121] ioctl(4, LOOP_SET_FD, 3 [pid 5119] chdir("./file2" [pid 5118] <... mount resumed>) = 0 [pid 5119] <... chdir resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5119] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5114] <... futex resumed>) = 0 [pid 5119] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5114] <... futex resumed>) = 0 [pid 5119] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5119] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5122] munmap(0x7f6dade00000, 138412032 [pid 5121] <... ioctl resumed>) = 0 [pid 5120] <... ioctl resumed>) = 0 [pid 5118] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5110] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] close(3 [pid 5120] close(3 [pid 5118] <... openat resumed>) = 3 [pid 5110] <... futex resumed>) = 1 [pid 5122] <... munmap resumed>) = 0 [pid 5121] <... close resumed>) = 0 [pid 5120] <... close resumed>) = 0 [pid 5119] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] chdir("./file2" [pid 5117] <... futex resumed>) = 0 [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] close(4 [pid 5120] close(4 [pid 5119] <... futex resumed>) = 1 [pid 5118] <... chdir resumed>) = 0 [pid 5117] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5114] <... futex resumed>) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5121] <... close resumed>) = 0 [pid 5120] <... close resumed>) = 0 [pid 5119] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5118] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5117] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5114] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... openat resumed>) = 4 [pid 5121] mkdir("./file2", 0777 [pid 5120] mkdir("./file2", 0777 [pid 5119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5118] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5114] <... futex resumed>) = 0 [pid 5122] ioctl(4, LOOP_SET_FD, 3 [pid 5119] memfd_create("syzkaller", 0 [pid 5117] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5119] <... memfd_create resumed>) = 4 [pid 5118] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] <... futex resumed>) = 1 [pid 5110] <... futex resumed>) = 0 [pid 5121] <... mkdir resumed>) = 0 [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] <... futex resumed>) = 1 [pid 5117] memfd_create("syzkaller", 0 [pid 5111] <... futex resumed>) = 0 [pid 5110] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... mmap resumed>) = 0x7f6dade00000 [pid 5117] <... memfd_create resumed>) = 4 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5121] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5118] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5111] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... futex resumed>) = 0 [pid 5120] <... mkdir resumed>) = 0 [pid 5119] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5111] <... futex resumed>) = 0 [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5120] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5118] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... ioctl resumed>) = 0 [pid 5118] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5122] close(3) = 0 [pid 5122] close(4 [pid 5121] <... mount resumed>) = 0 [pid 5118] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... close resumed>) = 0 [pid 5121] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5118] <... futex resumed>) = 1 [pid 5111] <... futex resumed>) = 0 [ 80.838387][ T5120] loop0: detected capacity change from 0 to 1024 [ 80.845185][ T5121] loop3: detected capacity change from 0 to 1024 [ 80.875290][ T5122] loop4: detected capacity change from 0 to 1024 [pid 5122] mkdir("./file2", 0777 [pid 5121] <... openat resumed>) = 3 [pid 5118] memfd_create("syzkaller", 0 [pid 5117] <... write resumed>) = 524288 [pid 5111] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... mkdir resumed>) = 0 [pid 5121] chdir("./file2" [pid 5120] <... mount resumed>) = 0 [pid 5118] <... memfd_create resumed>) = 4 [pid 5111] <... futex resumed>) = 0 [pid 5121] <... chdir resumed>) = 0 [pid 5120] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5121] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5118] <... mmap resumed>) = 0x7f6dade00000 [pid 5122] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5121] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] <... write resumed>) = 524288 [pid 5121] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... openat resumed>) = 3 [pid 5119] munmap(0x7f6dade00000, 138412032 [pid 5121] <... futex resumed>) = 1 [pid 5120] chdir("./file2" [pid 5119] <... munmap resumed>) = 0 [pid 5117] munmap(0x7f6dade00000, 138412032 [pid 5112] <... futex resumed>) = 0 [pid 5121] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5120] <... chdir resumed>) = 0 [pid 5112] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5112] <... futex resumed>) = 0 [pid 5121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5120] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5117] <... munmap resumed>) = 0 [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5120] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] close(4 [pid 5117] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5121] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5120] <... futex resumed>) = 1 [pid 5119] <... close resumed>) = 0 [pid 5118] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5113] <... futex resumed>) = 0 [pid 5121] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5117] close(4 [pid 5113] <... futex resumed>) = 0 [pid 5121] <... futex resumed>) = 1 [pid 5120] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... futex resumed>) = 0 [pid 5122] <... mount resumed>) = 0 [pid 5121] memfd_create("syzkaller", 0 [pid 5112] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5121] <... memfd_create resumed>) = 4 [pid 5112] <... futex resumed>) = 0 [pid 5122] <... openat resumed>) = 3 [pid 5120] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5119] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] <... close resumed>) = 0 [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5122] chdir("./file2" [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5119] <... futex resumed>) = 1 [pid 5114] <... futex resumed>) = 0 [pid 5122] <... chdir resumed>) = 0 [pid 5121] <... mmap resumed>) = 0x7f6dade00000 [pid 5120] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5120] <... futex resumed>) = 1 [pid 5119] openat(AT_FDCWD, ".", O_RDONLY [pid 5114] <... futex resumed>) = 0 [pid 5113] <... futex resumed>) = 0 [pid 5122] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] <... openat resumed>) = 4 [pid 5117] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5113] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] <... futex resumed>) = 1 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5113] <... futex resumed>) = 0 [pid 5110] <... futex resumed>) = 0 [pid 5120] memfd_create("syzkaller", 0 [pid 5122] <... futex resumed>) = 1 [pid 5120] <... memfd_create resumed>) = 4 [pid 5119] <... futex resumed>) = 0 [pid 5118] <... write resumed>) = 524288 [pid 5117] openat(AT_FDCWD, ".", O_RDONLY [pid 5116] <... futex resumed>) = 0 [pid 5114] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5110] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5119] openat(AT_FDCWD, ".", O_RDONLY [pid 5117] <... openat resumed>) = 4 [pid 5116] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = 0 [pid 5110] <... futex resumed>) = 0 [pid 5122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5120] <... mmap resumed>) = 0x7f6dade00000 [pid 5119] <... openat resumed>) = 5 [pid 5118] munmap(0x7f6dade00000, 138412032 [pid 5117] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... futex resumed>) = 0 [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5119] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... munmap resumed>) = 0 [pid 5117] <... futex resumed>) = 0 [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5119] <... futex resumed>) = 0 [pid 5117] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] renameat2(5, "./file2", 4, "./file1", 0 [pid 5118] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5117] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5114] <... futex resumed>) = 0 [pid 5110] <... futex resumed>) = 0 [pid 5121] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5119] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5118] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5117] openat(AT_FDCWD, ".", O_RDONLY [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5119] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] close(4 [pid 5117] <... openat resumed>) = 5 [pid 5119] <... futex resumed>) = 1 [pid 5119] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = 0 [pid 5117] <... futex resumed>) = 0 [pid 5114] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = 0 [pid 5114] <... futex resumed>) = 1 [pid 5119] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5114] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5119] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5117] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5119] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5114] <... futex resumed>) = 0 [pid 5119] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] exit_group(0 [pid 5119] <... futex resumed>) = ? [pid 5114] <... exit_group resumed>) = ? [pid 5119] +++ exited with 0 +++ [pid 5110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5118] <... close resumed>) = 0 [pid 5114] +++ exited with 0 +++ [pid 5110] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5117] <... futex resumed>) = 0 [pid 5110] <... futex resumed>) = 1 [pid 5117] renameat2(5, "./file2", 4, "./file1", 0 [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5117] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5052] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] <... write resumed>) = 524288 [pid 5117] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] <... futex resumed>) = 1 [pid 5110] <... futex resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5122] <... futex resumed>) = 1 [pid 5117] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] <... futex resumed>) = 0 [pid 5110] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] munmap(0x7f6dade00000, 138412032 [pid 5052] <... openat resumed>) = 3 [pid 5122] memfd_create("syzkaller", 0 [pid 5121] <... munmap resumed>) = 0 [pid 5117] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5116] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... futex resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5122] <... memfd_create resumed>) = 4 [pid 5121] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5117] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5116] <... futex resumed>) = 0 [pid 5110] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5117] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] getdents64(3, [pid 5122] <... mmap resumed>) = 0x7f6dade00000 [pid 5121] close(4 [pid 5120] <... write resumed>) = 524288 [pid 5118] <... futex resumed>) = 1 [pid 5117] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5122] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5121] <... close resumed>) = 0 [pid 5120] munmap(0x7f6dade00000, 138412032 [pid 5118] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] <... futex resumed>) = 1 [pid 5111] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... futex resumed>) = 0 [pid 5052] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] exit_group(0 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5117] +++ exited with 0 +++ [pid 5110] +++ exited with 0 +++ [pid 5052] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./4/binderfs" [pid 5120] <... munmap resumed>) = 0 [pid 5118] openat(AT_FDCWD, ".", O_RDONLY [pid 5052] <... unlink resumed>) = 0 [pid 5121] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5118] <... openat resumed>) = 4 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5052] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] <... write resumed>) = 524288 [pid 5121] <... futex resumed>) = 1 [pid 5120] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5118] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] <... futex resumed>) = 0 [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5118] <... futex resumed>) = 1 [pid 5112] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = 0 [pid 5121] openat(AT_FDCWD, ".", O_RDONLY [pid 5120] close(4 [pid 5118] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] <... futex resumed>) = 0 [pid 5111] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] openat(AT_FDCWD, ".", O_RDONLY [pid 5121] <... openat resumed>) = 4 [pid 5118] <... openat resumed>) = 5 [pid 5056] <... restart_syscall resumed>) = 0 [pid 5118] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5118] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = 0 [pid 5111] <... futex resumed>) = 1 [pid 5121] <... futex resumed>) = 1 [pid 5118] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] <... futex resumed>) = 0 [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] openat(AT_FDCWD, ".", O_RDONLY [pid 5112] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] <... openat resumed>) = 5 [pid 5112] <... futex resumed>) = 0 [pid 5111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... close resumed>) = 0 [pid 5111] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5122] munmap(0x7f6dade00000, 138412032 [pid 5121] <... futex resumed>) = 1 [pid 5118] <... futex resumed>) = 0 [pid 5112] <... futex resumed>) = 0 [pid 5111] <... futex resumed>) = 1 [pid 5056] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = 0 [pid 5122] <... munmap resumed>) = 0 [pid 5118] renameat2(5, "./file2", 4, "./file1", 0 [pid 5056] newfstatat(3, "", [pid 5112] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5112] <... futex resumed>) = 0 [pid 5121] renameat2(5, "./file2", 4, "./file1", 0 [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... futex resumed>) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5118] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5121] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5120] openat(AT_FDCWD, ".", O_RDONLY [pid 5118] <... futex resumed>) = 1 [pid 5113] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] <... futex resumed>) = 0 [pid 5056] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5120] <... openat resumed>) = 4 [pid 5118] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] newfstatat(AT_FDCWD, "./4/file2", [pid 5122] close(4 [pid 5121] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5111] <... futex resumed>) = 0 [pid 5056] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] <... futex resumed>) = 1 [pid 5120] <... futex resumed>) = 1 [pid 5118] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = 0 [pid 5112] <... futex resumed>) = 0 [pid 5111] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5121] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5120] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5118] <... futex resumed>) = 0 [pid 5113] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5118] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] <... futex resumed>) = 0 [pid 5112] <... futex resumed>) = 0 [pid 5111] exit_group(0 [pid 5052] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5120] openat(AT_FDCWD, ".", O_RDONLY [pid 5118] <... futex resumed>) = ? [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5121] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5120] <... openat resumed>) = 5 [pid 5118] +++ exited with 0 +++ [pid 5111] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5121] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5052] <... openat resumed>) = 4 [pid 5121] <... futex resumed>) = 1 [pid 5120] <... futex resumed>) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5112] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(4, "", [pid 5121] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5120] renameat2(5, "./file2", 4, "./file1", 0 [pid 5113] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] exit_group(0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5122] <... close resumed>) = 0 [pid 5121] <... futex resumed>) = ? [pid 5120] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5113] <... futex resumed>) = 0 [pid 5112] <... exit_group resumed>) = ? [pid 5052] getdents64(4, [pid 5056] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5121] +++ exited with 0 +++ [pid 5120] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] +++ exited with 0 +++ [pid 5120] <... futex resumed>) = 0 [pid 5113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5053] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5120] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] unlink("./4/binderfs" [pid 5120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5113] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, [pid 5120] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5113] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... unlink resumed>) = 0 [pid 5120] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5053] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5120] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... openat resumed>) = 3 [pid 5052] close(4 [pid 5120] <... futex resumed>) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5056] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5120] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] exit_group(0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5120] <... futex resumed>) = ? [pid 5113] <... exit_group resumed>) = ? [pid 5052] rmdir("./4/file2" [pid 5122] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] +++ exited with 0 +++ [pid 5054] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] newfstatat(3, "", [pid 5113] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5122] <... futex resumed>) = 1 [pid 5053] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5122] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] unlink("./4/binderfs" [pid 5051] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(3, [pid 5116] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5116] <... futex resumed>) = 1 [pid 5122] <... futex resumed>) = 0 [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... openat resumed>) = 3 [pid 5052] close(3 [pid 5051] newfstatat(3, "", [pid 5122] openat(AT_FDCWD, ".", O_RDONLY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5122] <... openat resumed>) = 4 [pid 5051] getdents64(3, [pid 5122] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5122] <... futex resumed>) = 0 [pid 5051] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./4/binderfs") = 0 [pid 5051] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] newfstatat(3, "", [pid 5116] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] rmdir("./4" [pid 5054] getdents64(3, [pid 5116] <... futex resumed>) = 1 [pid 5052] <... rmdir resumed>) = 0 [pid 5122] <... futex resumed>) = 0 [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] mkdir("./5", 0777 [pid 5122] openat(AT_FDCWD, ".", O_RDONLY [pid 5052] <... mkdir resumed>) = 0 [pid 5122] <... openat resumed>) = 5 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5122] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5122] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] <... futex resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5116] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = 0 [pid 5051] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./4/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... ioctl resumed>) = 0 [pid 5122] <... futex resumed>) = 0 [pid 5116] <... futex resumed>) = 1 [pid 5122] renameat2(5, "./file2", 4, "./file1", 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5053] <... umount2 resumed>) = 0 [pid 5052] close(3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5122] <... futex resumed>) = 0 [pid 5116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] unlink("./4/binderfs" [pid 5053] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... openat resumed>) = 4 [pid 5116] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(4, "", [pid 5122] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5116] <... futex resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./4/file2", [pid 5053] newfstatat(AT_FDCWD, "./4/file2", ./strace-static-x86_64: Process 5123 attached [pid 5122] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5123] set_robust_list(0x555556b376a0, 24 [pid 5122] <... futex resumed>) = 0 [pid 5116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... unlink resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5123 [pid 5051] getdents64(4, [pid 5123] <... set_robust_list resumed>) = 0 [pid 5122] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] exit_group(0 [pid 5056] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5123] chdir("./5" [pid 5122] <... futex resumed>) = ? [pid 5116] <... exit_group resumed>) = ? [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] +++ exited with 0 +++ [pid 5056] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(4, [pid 5053] <... openat resumed>) = 4 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] newfstatat(4, "", [pid 5051] close(4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5051] rmdir("./4/file2" [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... rmdir resumed>) = 0 [pid 5053] getdents64(4, [pid 5123] <... chdir resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4 [pid 5051] getdents64(3, [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] +++ exited with 0 +++ [pid 5056] newfstatat(4, "", [pid 5123] <... prctl resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5053] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5123] setpgid(0, 0 [pid 5056] getdents64(4, [pid 5053] rmdir("./4/file2" [pid 5123] <... setpgid resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] close(3 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] getdents64(3, [pid 5051] <... close resumed>) = 0 [pid 5056] close(4 [pid 5055] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] rmdir("./4" [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] close(3 [pid 5051] <... rmdir resumed>) = 0 [pid 5056] rmdir("./4/file2" [pid 5055] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5051] mkdir("./5", 0777 [pid 5055] newfstatat(3, "", [pid 5053] rmdir("./4" [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5123] <... openat resumed>) = 3 [pid 5056] getdents64(3, [pid 5123] write(3, "1000", 4 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5123] <... write resumed>) = 4 [pid 5056] close(3 [pid 5123] close(3) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] getdents64(3, [pid 5054] <... umount2 resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5123] symlink("/dev/binderfs", "./binderfs" [pid 5056] rmdir("./4" [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5123] <... symlink resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] mkdir("./5", 0777 [pid 5051] <... openat resumed>) = 3 [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5054] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... mkdir resumed>) = 0 [pid 5123] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5056] mkdir("./5", 0777 [pid 5123] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5054] newfstatat(AT_FDCWD, "./4/file2", [pid 5123] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5123] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] unlink("./4/binderfs" [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5054] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5123] <... mmap resumed>) = 0x7f6db6363000 [pid 5123] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] <... mprotect resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5054] <... openat resumed>) = 4 [pid 5123] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5054] newfstatat(4, "", [pid 5123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5124 attached [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5124] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5123] <... clone3 resumed> => {parent_tid=[5124]}, 88) = 5124 [pid 5055] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] getdents64(4, [pid 5124] <... rseq resumed>) = 0 [pid 5123] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5124] set_robust_list(0x7f6db63839a0, 24 [pid 5123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5123] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./4/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5124] rt_sigprocmask(SIG_SETMASK, [], [pid 5123] <... futex resumed>) = 0 [pid 5124] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] getdents64(4, [pid 5124] memfd_create("syzkaller", 0 [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] <... ioctl resumed>) = 0 [pid 5055] umount2("./4/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... ioctl resumed>) = 0 [pid 5124] <... memfd_create resumed>) = 3 [pid 5056] close(3 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] close(4 [pid 5124] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... close resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] rmdir("./4/file2" [pid 5055] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] close(3) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] close(4) = 0 [pid 5053] close(3) = 0 [pid 5055] rmdir("./4/file2" [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5125 attached [pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5125 ./strace-static-x86_64: Process 5126 attached [pid 5125] set_robust_list(0x555556b376a0, 24) = 0 [pid 5125] chdir("./5") = 0 [pid 5055] getdents64(3, [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5126 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5125] <... prctl resumed>) = 0 [pid 5055] close(3) = 0 [pid 5125] setpgid(0, 0 [pid 5055] rmdir("./4" [pid 5125] <... setpgid resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5125] write(3, "1000", 4) = 4 [pid 5055] mkdir("./5", 0777 [pid 5125] close(3 [pid 5126] set_robust_list(0x555556b376a0, 24 [pid 5125] <... close resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5127 [pid 5055] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5127 attached [pid 5125] symlink("/dev/binderfs", "./binderfs" [pid 5054] getdents64(3, [pid 5127] set_robust_list(0x555556b376a0, 24 [pid 5126] <... set_robust_list resumed>) = 0 [pid 5125] <... symlink resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5127] <... set_robust_list resumed>) = 0 [pid 5126] chdir("./5" [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... write resumed>) = 524288 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5127] chdir("./5" [pid 5126] <... chdir resumed>) = 0 [pid 5054] close(3 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] <... chdir resumed>) = 0 [pid 5124] munmap(0x7f6dade00000, 138412032 [pid 5126] <... prctl resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5125] <... futex resumed>) = 0 [pid 5125] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5124] <... munmap resumed>) = 0 [pid 5126] setpgid(0, 0) = 0 [pid 5054] rmdir("./4" [pid 5125] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... openat resumed>) = 3 [pid 5125] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5126] <... openat resumed>) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5124] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5054] <... rmdir resumed>) = 0 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5126] write(3, "1000", 4 [pid 5127] <... prctl resumed>) = 0 [pid 5124] <... openat resumed>) = 4 [pid 5126] <... write resumed>) = 4 [pid 5127] setpgid(0, 0 [pid 5126] close(3 [pid 5125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5124] ioctl(4, LOOP_SET_FD, 3 [pid 5054] mkdir("./5", 0777 [pid 5125] <... mmap resumed>) = 0x7f6db6363000 [pid 5125] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5125] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5054] <... mkdir resumed>) = 0 [pid 5125] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5125] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5128]}, 88) = 5128 ./strace-static-x86_64: Process 5128 attached [pid 5125] rt_sigprocmask(SIG_SETMASK, [], [pid 5128] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5125] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5128] <... rseq resumed>) = 0 [pid 5127] <... setpgid resumed>) = 0 [pid 5126] <... close resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5126] symlink("/dev/binderfs", "./binderfs" [pid 5054] <... openat resumed>) = 3 [pid 5128] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5128] rt_sigprocmask(SIG_SETMASK, [], [pid 5126] <... symlink resumed>) = 0 [pid 5128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5125] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] memfd_create("syzkaller", 0 [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 0 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5127] <... openat resumed>) = 3 [pid 5126] <... futex resumed>) = 0 [pid 5128] <... memfd_create resumed>) = 3 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5126] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5127] write(3, "1000", 4 [pid 5126] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5124] <... ioctl resumed>) = 0 [pid 5126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5124] close(3 [pid 5126] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5124] <... close resumed>) = 0 [pid 5127] <... write resumed>) = 4 [pid 5126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5124] close(4 [pid 5128] <... write resumed>) = 524288 [pid 5127] close(3 [pid 5126] <... mmap resumed>) = 0x7f6db6363000 [pid 5124] <... close resumed>) = 0 [pid 5128] munmap(0x7f6dade00000, 138412032 [pid 5127] <... close resumed>) = 0 [pid 5126] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5124] mkdir("./file2", 0777 [pid 5127] symlink("/dev/binderfs", "./binderfs" [pid 5128] <... munmap resumed>) = 0 [pid 5127] <... symlink resumed>) = 0 [pid 5126] <... mprotect resumed>) = 0 [pid 5124] <... mkdir resumed>) = 0 [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5127] <... futex resumed>) = 0 [pid 5126] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5124] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5055] <... ioctl resumed>) = 0 [pid 5128] <... openat resumed>) = 4 [pid 5126] <... rt_sigprocmask resumed>[], 8) = 0 [ 81.314395][ T5124] loop1: detected capacity change from 0 to 1024 [pid 5128] ioctl(4, LOOP_SET_FD, 3 [pid 5127] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5129]}, 88) = 5129 [pid 5126] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] close(3 [pid 5127] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5126] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5129 attached [pid 5055] <... close resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5129] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5127] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5126] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] <... rseq resumed>) = 0 [pid 5127] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5126] <... futex resumed>) = 0 [pid 5129] set_robust_list(0x7f6db63839a0, 24 [pid 5127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5129] <... set_robust_list resumed>) = 0 [pid 5127] <... mmap resumed>) = 0x7f6db6363000 [pid 5129] rt_sigprocmask(SIG_SETMASK, [], [pid 5127] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5129] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5130 attached [pid 5129] memfd_create("syzkaller", 0 [pid 5127] <... mprotect resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5130 [pid 5054] <... ioctl resumed>) = 0 [pid 5127] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5054] close(3 [pid 5129] <... memfd_create resumed>) = 3 [pid 5054] <... close resumed>) = 0 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5130] set_robust_list(0x555556b376a0, 24 [pid 5128] <... ioctl resumed>) = 0 [pid 5127] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5124] <... mount resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5130] <... set_robust_list resumed>) = 0 [pid 5127] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5130] chdir("./5") = 0 [pid 5128] close(3 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] <... clone3 resumed> => {parent_tid=[5131]}, 88) = 5131 [pid 5124] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5131 attached [ 81.375716][ T5128] loop0: detected capacity change from 0 to 1024 [pid 5130] <... prctl resumed>) = 0 [pid 5128] <... close resumed>) = 0 [pid 5127] rt_sigprocmask(SIG_SETMASK, [], [pid 5124] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5132 attached [pid 5131] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5130] setpgid(0, 0 [pid 5129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5128] close(4 [pid 5127] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5124] chdir("./file2" [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5132 [pid 5131] <... rseq resumed>) = 0 [pid 5128] <... close resumed>) = 0 [pid 5127] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... chdir resumed>) = 0 [pid 5131] set_robust_list(0x7f6db63839a0, 24 [pid 5128] mkdir("./file2", 0777 [pid 5127] <... futex resumed>) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5131] <... set_robust_list resumed>) = 0 [pid 5132] set_robust_list(0x555556b376a0, 24 [pid 5131] rt_sigprocmask(SIG_SETMASK, [], [pid 5130] <... setpgid resumed>) = 0 [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5128] <... mkdir resumed>) = 0 [pid 5124] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] <... set_robust_list resumed>) = 0 [pid 5131] memfd_create("syzkaller", 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5124] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] chdir("./5" [pid 5131] <... memfd_create resumed>) = 3 [pid 5130] <... openat resumed>) = 3 [pid 5132] <... chdir resumed>) = 0 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5130] write(3, "1000", 4 [pid 5124] <... futex resumed>) = 1 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5131] <... mmap resumed>) = 0x7f6dade00000 [pid 5130] <... write resumed>) = 4 [pid 5124] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5123] <... futex resumed>) = 0 [pid 5132] <... prctl resumed>) = 0 [pid 5130] close(3 [pid 5132] setpgid(0, 0) = 0 [pid 5130] <... close resumed>) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5130] symlink("/dev/binderfs", "./binderfs" [pid 5132] <... openat resumed>) = 3 [pid 5130] <... symlink resumed>) = 0 [pid 5132] write(3, "1000", 4 [pid 5131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5129] <... write resumed>) = 524288 [pid 5123] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... write resumed>) = 4 [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... futex resumed>) = 0 [pid 5123] <... futex resumed>) = 1 [pid 5132] close(3) = 0 [pid 5130] <... futex resumed>) = 0 [pid 5124] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] <... mount resumed>) = 0 [pid 5132] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5128] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5124] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5128] <... openat resumed>) = 3 [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5129] munmap(0x7f6dade00000, 138412032 [pid 5128] chdir("./file2" [pid 5124] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = 0 [pid 5130] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5128] <... chdir resumed>) = 0 [pid 5124] <... futex resumed>) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5132] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5123] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... write resumed>) = 524288 [pid 5130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5129] <... munmap resumed>) = 0 [pid 5124] memfd_create("syzkaller", 0 [pid 5130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5123] <... futex resumed>) = 0 [pid 5131] munmap(0x7f6dade00000, 138412032 [pid 5130] <... mmap resumed>) = 0x7f6db6363000 [pid 5124] <... memfd_create resumed>) = 4 [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5130] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5128] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5131] <... munmap resumed>) = 0 [pid 5130] <... mprotect resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5128] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5131] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5130] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5124] <... mmap resumed>) = 0x7f6dade00000 [pid 5132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5130] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5129] <... openat resumed>) = 4 [pid 5128] <... futex resumed>) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5129] ioctl(4, LOOP_SET_FD, 3 [pid 5128] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5125] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5133 attached [pid 5132] <... mmap resumed>) = 0x7f6db6363000 [pid 5125] <... futex resumed>) = 0 [pid 5133] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5132] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5130] <... clone3 resumed> => {parent_tid=[5133]}, 88) = 5133 [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] <... rseq resumed>) = 0 [pid 5132] <... mprotect resumed>) = 0 [pid 5130] rt_sigprocmask(SIG_SETMASK, [], [pid 5133] set_robust_list(0x7f6db63839a0, 24 [pid 5132] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5133] <... set_robust_list resumed>) = 0 [pid 5132] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5130] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] rt_sigprocmask(SIG_SETMASK, [], [pid 5132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5130] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5134 attached [pid 5133] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5134] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5133] memfd_create("syzkaller", 0 [pid 5132] <... clone3 resumed> => {parent_tid=[5134]}, 88) = 5134 [pid 5134] <... rseq resumed>) = 0 [pid 5132] rt_sigprocmask(SIG_SETMASK, [], [pid 5134] set_robust_list(0x7f6db63839a0, 24 [pid 5133] <... memfd_create resumed>) = 3 [pid 5132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5131] <... openat resumed>) = 4 [pid 5134] <... set_robust_list resumed>) = 0 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5132] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] ioctl(4, LOOP_SET_FD, 3 [pid 5134] rt_sigprocmask(SIG_SETMASK, [], [pid 5129] <... ioctl resumed>) = 0 [pid 5128] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5124] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5134] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5129] close(3 [pid 5134] memfd_create("syzkaller", 0 [pid 5129] <... close resumed>) = 0 [pid 5129] close(4) = 0 [pid 5129] mkdir("./file2", 0777 [pid 5134] <... memfd_create resumed>) = 3 [pid 5132] <... futex resumed>) = 0 [pid 5129] <... mkdir resumed>) = 0 [pid 5128] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... write resumed>) = 524288 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5133] <... mmap resumed>) = 0x7f6dade00000 [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5128] <... futex resumed>) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5128] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] <... mmap resumed>) = 0x7f6dade00000 [pid 5129] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5125] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... ioctl resumed>) = 0 [pid 5128] memfd_create("syzkaller", 0 [pid 5131] close(3 [pid 5128] <... memfd_create resumed>) = 4 [pid 5131] <... close resumed>) = 0 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] close(4) = 0 [pid 5128] <... mmap resumed>) = 0x7f6dade00000 [pid 5125] <... futex resumed>) = 0 [pid 5131] mkdir("./file2", 0777 [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5131] <... mkdir resumed>) = 0 [pid 5128] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5129] <... mount resumed>) = 0 [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5133] <... write resumed>) = 524288 [pid 5131] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5129] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [ 81.495017][ T5129] loop2: detected capacity change from 0 to 1024 [ 81.521186][ T5131] loop5: detected capacity change from 0 to 1024 [pid 5124] munmap(0x7f6dade00000, 138412032) = 0 [pid 5134] <... write resumed>) = 524288 [pid 5129] <... openat resumed>) = 3 [pid 5124] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5129] chdir("./file2" [pid 5124] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] <... chdir resumed>) = 0 [pid 5124] close(4 [pid 5129] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5124] <... close resumed>) = 0 [pid 5129] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] munmap(0x7f6dade00000, 138412032 [pid 5129] <... futex resumed>) = 1 [pid 5126] <... futex resumed>) = 0 [pid 5129] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5126] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5126] <... futex resumed>) = 0 [pid 5133] <... munmap resumed>) = 0 [pid 5129] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5129] <... futex resumed>) = 0 [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5124] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... openat resumed>) = 4 [pid 5129] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... futex resumed>) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5133] ioctl(4, LOOP_SET_FD, 3 [pid 5129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] <... futex resumed>) = 0 [pid 5124] openat(AT_FDCWD, ".", O_RDONLY [pid 5123] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] munmap(0x7f6dade00000, 138412032 [pid 5131] <... mount resumed>) = 0 [pid 5128] <... write resumed>) = 524288 [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5123] <... futex resumed>) = 0 [pid 5129] memfd_create("syzkaller", 0 [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5129] <... memfd_create resumed>) = 4 [pid 5131] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] <... openat resumed>) = 4 [pid 5128] munmap(0x7f6dade00000, 138412032 [pid 5129] <... mmap resumed>) = 0x7f6dade00000 [pid 5124] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... openat resumed>) = 3 [pid 5129] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5128] <... munmap resumed>) = 0 [pid 5124] <... futex resumed>) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] <... munmap resumed>) = 0 [pid 5124] openat(AT_FDCWD, ".", O_RDONLY [pid 5123] <... futex resumed>) = 0 [pid 5134] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5124] <... openat resumed>) = 5 [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... openat resumed>) = 4 [pid 5124] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5134] ioctl(4, LOOP_SET_FD, 3 [pid 5131] chdir("./file2" [pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5124] <... futex resumed>) = 0 [pid 5123] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] renameat2(5, "./file2", 4, "./file1", 0 [pid 5131] <... chdir resumed>) = 0 [pid 5123] <... futex resumed>) = 0 [pid 5128] close(4 [pid 5124] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5124] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5123] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... ioctl resumed>) = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5129] <... write resumed>) = 524288 [pid 5124] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5133] close(3 [pid 5124] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5123] <... futex resumed>) = 0 [pid 5133] <... close resumed>) = 0 [pid 5124] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] close(4 [pid 5124] <... futex resumed>) = 0 [pid 5123] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] <... close resumed>) = 0 [pid 5124] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5133] mkdir("./file2", 0777 [pid 5131] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5123] exit_group(0 [pid 5133] <... mkdir resumed>) = 0 [pid 5131] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... futex resumed>) = ? [pid 5123] <... exit_group resumed>) = ? [pid 5131] <... futex resumed>) = 1 [pid 5128] <... close resumed>) = 0 [pid 5127] <... futex resumed>) = 0 [pid 5124] +++ exited with 0 +++ [pid 5133] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5131] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] +++ exited with 0 +++ [pid 5133] <... mount resumed>) = 0 [pid 5131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5128] <... futex resumed>) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = 0 [pid 5134] <... ioctl resumed>) = 0 [pid 5133] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5131] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5134] close(3 [pid 5133] <... openat resumed>) = 3 [pid 5129] munmap(0x7f6dade00000, 138412032 [pid 5125] <... futex resumed>) = 0 [pid 5134] <... close resumed>) = 0 [pid 5133] chdir("./file2" [pid 5129] <... munmap resumed>) = 0 [pid 5128] openat(AT_FDCWD, ".", O_RDONLY [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5134] close(4 [pid 5133] <... chdir resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5134] <... close resumed>) = 0 [pid 5133] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5128] <... openat resumed>) = 4 [pid 5134] mkdir("./file2", 0777 [pid 5133] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5129] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5128] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] <... mkdir resumed>) = 0 [pid 5133] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5133] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5130] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] close(4 [pid 5134] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5130] <... futex resumed>) = 0 [pid 5129] <... close resumed>) = 0 [pid 5052] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [ 81.594588][ T5133] loop4: detected capacity change from 0 to 1024 [ 81.614796][ T5134] loop3: detected capacity change from 0 to 1024 [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5133] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5131] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... futex resumed>) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5133] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 1 [pid 5128] openat(AT_FDCWD, ".", O_RDONLY [pid 5127] <... futex resumed>) = 0 [pid 5125] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 1 [pid 5131] memfd_create("syzkaller", 0 [pid 5130] <... futex resumed>) = 0 [pid 5127] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5133] memfd_create("syzkaller", 0 [pid 5130] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] <... memfd_create resumed>) = 4 [pid 5130] <... futex resumed>) = 0 [pid 5127] <... futex resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5131] <... memfd_create resumed>) = 4 [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5128] <... openat resumed>) = 5 [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5129] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] getdents64(3, [pid 5133] <... mmap resumed>) = 0x7f6dade00000 [pid 5131] <... mmap resumed>) = 0x7f6dade00000 [pid 5129] <... futex resumed>) = 1 [pid 5128] <... futex resumed>) = 1 [pid 5126] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5133] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5129] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] renameat2(5, "./file2", 4, "./file1", 0 [pid 5126] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5128] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5126] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5129] openat(AT_FDCWD, ".", O_RDONLY [pid 5128] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5129] <... openat resumed>) = 4 [pid 5128] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5134] <... mount resumed>) = 0 [pid 5133] <... write resumed>) = 524288 [pid 5129] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] unlink("./5/binderfs" [pid 5131] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5129] <... futex resumed>) = 1 [pid 5128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5134] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5128] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5126] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... openat resumed>) = 3 [pid 5129] openat(AT_FDCWD, ".", O_RDONLY [pid 5128] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5126] <... futex resumed>) = 0 [pid 5052] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5134] chdir("./file2" [pid 5129] <... openat resumed>) = 5 [pid 5128] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... chdir resumed>) = 0 [pid 5129] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5129] <... futex resumed>) = 1 [pid 5126] <... futex resumed>) = 0 [pid 5134] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] renameat2(5, "./file2", 4, "./file1", 0 [pid 5126] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] munmap(0x7f6dade00000, 138412032 [pid 5129] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5126] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5132] <... futex resumed>) = 0 [pid 5128] <... futex resumed>) = 1 [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] <... futex resumed>) = 0 [pid 5134] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5133] <... munmap resumed>) = 0 [pid 5132] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5125] exit_group(0 [pid 5132] <... futex resumed>) = 0 [pid 5129] <... futex resumed>) = 0 [pid 5128] <... futex resumed>) = ? [pid 5126] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = 0 [pid 5134] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5133] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5129] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5126] <... futex resumed>) = 0 [pid 5133] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5126] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] close(4 [pid 5129] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5128] +++ exited with 0 +++ [pid 5126] <... futex resumed>) = 0 [pid 5125] +++ exited with 0 +++ [pid 5134] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... close resumed>) = 0 [pid 5131] <... write resumed>) = 524288 [pid 5129] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] exit_group(0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5134] <... futex resumed>) = 1 [pid 5132] <... futex resumed>) = 0 [pid 5129] <... futex resumed>) = ? [pid 5126] <... exit_group resumed>) = ? [pid 5134] memfd_create("syzkaller", 0 [pid 5132] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] +++ exited with 0 +++ [pid 5126] +++ exited with 0 +++ [pid 5052] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5131] munmap(0x7f6dade00000, 138412032 [pid 5132] <... futex resumed>) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5131] <... munmap resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./5/file2", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5134] <... memfd_create resumed>) = 4 [pid 5133] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5133] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5134] <... mmap resumed>) = 0x7f6dade00000 [pid 5130] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5134] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5133] openat(AT_FDCWD, ".", O_RDONLY [pid 5131] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5130] <... futex resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(3, "", [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] newfstatat(3, "", [pid 5052] <... openat resumed>) = 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5133] <... openat resumed>) = 4 [pid 5131] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5133] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] getdents64(3, [pid 5052] newfstatat(4, "", [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5133] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5133] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5130] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5134] <... write resumed>) = 524288 [pid 5131] close(4 [pid 5052] getdents64(4, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5130] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] openat(AT_FDCWD, ".", O_RDONLY [pid 5053] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5133] <... openat resumed>) = 5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(4, [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5133] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] unlink("./5/binderfs" [pid 5133] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] unlink("./5/binderfs" [pid 5133] renameat2(5, "./file2", 4, "./file1", 0 [pid 5130] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... unlink resumed>) = 0 [pid 5052] close(4 [pid 5051] <... unlink resumed>) = 0 [pid 5133] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5131] <... close resumed>) = 0 [pid 5130] <... futex resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5133] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] rmdir("./5/file2" [pid 5133] <... futex resumed>) = 0 [pid 5130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... rmdir resumed>) = 0 [pid 5133] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5130] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... umount2 resumed>) = 0 [pid 5134] munmap(0x7f6dade00000, 138412032 [pid 5133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5130] <... futex resumed>) = 0 [pid 5131] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] <... munmap resumed>) = 0 [pid 5133] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5131] <... futex resumed>) = 1 [pid 5130] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5127] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5127] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] openat(AT_FDCWD, ".", O_RDONLY [pid 5134] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5133] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5131] <... openat resumed>) = 4 [pid 5127] <... futex resumed>) = 0 [pid 5052] close(3 [pid 5131] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5133] <... futex resumed>) = 0 [pid 5131] openat(AT_FDCWD, ".", O_RDONLY [pid 5130] exit_group(0 [pid 5127] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5130] <... exit_group resumed>) = ? [pid 5127] <... futex resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./5/file2", [pid 5052] rmdir("./5" [pid 5134] close(4 [pid 5133] +++ exited with 0 +++ [pid 5130] +++ exited with 0 +++ [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5134] <... close resumed>) = 0 [pid 5053] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] mkdir("./6", 0777 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... mkdir resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./5/file2", [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5053] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5053] newfstatat(4, "", [pid 5052] <... openat resumed>) = 3 [pid 5051] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5134] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(4, [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5134] <... futex resumed>) = 1 [pid 5132] <... futex resumed>) = 0 [pid 5131] <... openat resumed>) = 5 [pid 5055] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... openat resumed>) = 4 [pid 5134] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5053] getdents64(4, [pid 5051] newfstatat(4, "", [pid 5134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5132] <... futex resumed>) = 0 [pid 5131] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(3, "", [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5134] openat(AT_FDCWD, ".", O_RDONLY [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5131] <... futex resumed>) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] close(4 [pid 5131] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5127] <... futex resumed>) = 0 [pid 5131] renameat2(5, "./file2", 4, "./file1", 0 [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] getdents64(3, [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5131] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] rmdir("./5/file2" [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5134] <... openat resumed>) = 4 [pid 5131] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5134] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5132] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(3, [pid 5051] close(4 [pid 5134] openat(AT_FDCWD, ".", O_RDONLY [pid 5132] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5131] <... futex resumed>) = 1 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5127] <... futex resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5134] <... openat resumed>) = 5 [pid 5132] <... futex resumed>) = 0 [pid 5131] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] close(3 [pid 5051] rmdir("./5/file2" [pid 5134] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5127] <... futex resumed>) = 0 [pid 5055] unlink("./5/binderfs" [pid 5053] <... close resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5134] <... futex resumed>) = 0 [pid 5132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5131] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5127] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... unlink resumed>) = 0 [pid 5053] rmdir("./5" [pid 5051] getdents64(3, [pid 5134] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5055] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5132] <... futex resumed>) = 0 [pid 5131] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] renameat2(5, "./file2", 4, "./file1", 0 [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] mkdir("./6", 0777 [pid 5051] close(3 [pid 5134] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5131] <... futex resumed>) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5131] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] exit_group(0 [pid 5131] <... futex resumed>) = ? [pid 5127] <... exit_group resumed>) = ? [pid 5134] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] +++ exited with 0 +++ [pid 5051] rmdir("./5" [pid 5134] <... futex resumed>) = 1 [pid 5132] <... futex resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5134] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5132] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5132] <... futex resumed>) = 0 [pid 5134] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5134] <... futex resumed>) = 0 [pid 5132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5127] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5051] mkdir("./6", 0777 [pid 5134] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] exit_group(0 [pid 5052] <... ioctl resumed>) = 0 [pid 5134] <... futex resumed>) = ? [pid 5132] <... exit_group resumed>) = ? [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5134] +++ exited with 0 +++ [pid 5132] +++ exited with 0 +++ [pid 5056] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] close(3 [pid 5056] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... close resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(3, "", [pid 5055] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5135 attached [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(3, [pid 5055] newfstatat(AT_FDCWD, "./5/file2", [pid 5054] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] newfstatat(3, "", [pid 5135] set_robust_list(0x555556b376a0, 24 [pid 5056] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... mkdir resumed>) = 0 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5135 [pid 5054] getdents64(3, [pid 5135] chdir("./6" [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5135] <... chdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5056] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5055] newfstatat(4, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] unlink("./5/binderfs" [pid 5055] getdents64(4, [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] close(4) = 0 [pid 5135] <... prctl resumed>) = 0 [pid 5055] rmdir("./5/file2" [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5135] setpgid(0, 0 [pid 5054] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5135] <... setpgid resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] getdents64(3, [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] unlink("./5/binderfs" [pid 5055] close(3) = 0 [pid 5054] <... unlink resumed>) = 0 [pid 5055] rmdir("./5" [pid 5135] <... openat resumed>) = 3 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] symlink("/dev/binderfs", "./binderfs" [pid 5055] mkdir("./6", 0777 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5135] <... symlink resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5135] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5135] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5135] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5056] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5135] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5056] newfstatat(AT_FDCWD, "./5/file2", ./strace-static-x86_64: Process 5136 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5136] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5135] <... clone3 resumed> => {parent_tid=[5136]}, 88) = 5136 [pid 5136] <... rseq resumed>) = 0 [pid 5135] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5136] set_robust_list(0x7f6db63839a0, 24 [pid 5135] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5136] <... set_robust_list resumed>) = 0 [pid 5135] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] rt_sigprocmask(SIG_SETMASK, [], [pid 5135] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 4 [pid 5056] newfstatat(4, "", [pid 5136] memfd_create("syzkaller", 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5056] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./5/file2") = 0 [pid 5056] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] close(3) = 0 [pid 5056] rmdir("./5" [pid 5053] close(3 [pid 5056] <... rmdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] mkdir("./6", 0777) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5137 [pid 5136] <... memfd_create resumed>) = 3 [pid 5054] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5137 attached [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] set_robust_list(0x555556b376a0, 24 [pid 5136] <... mmap resumed>) = 0x7f6dade00000 [pid 5054] newfstatat(AT_FDCWD, "./5/file2", [pid 5137] <... set_robust_list resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5137] chdir("./6" [pid 5056] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5137] <... chdir resumed>) = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5054] umount2("./5/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] write(3, "1000", 4 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] <... write resumed>) = 4 [pid 5137] close(3) = 0 [pid 5137] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5137] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5137] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5054] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5137] <... mprotect resumed>) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5137] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5054] newfstatat(4, "", [pid 5137] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5137] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5138]}, 88) = 5138 [pid 5137] rt_sigprocmask(SIG_SETMASK, [], [pid 5136] <... write resumed>) = 524288 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5138 attached [pid 5137] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] close(3 [pid 5138] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5137] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5051] close(3 [pid 5138] <... rseq resumed>) = 0 [pid 5137] <... futex resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5138] set_robust_list(0x7f6db63839a0, 24 [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] getdents64(4, [pid 5138] <... set_robust_list resumed>) = 0 [pid 5138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5138] memfd_create("syzkaller", 0) = 3 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... close resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5139 [pid 5136] munmap(0x7f6dade00000, 138412032 [pid 5054] getdents64(4, [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5140 attached [pid 5136] <... munmap resumed>) = 0 [pid 5054] close(4./strace-static-x86_64: Process 5139 attached [pid 5139] set_robust_list(0x555556b376a0, 24 [pid 5054] <... close resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5140 [pid 5140] set_robust_list(0x555556b376a0, 24 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5138] <... write resumed>) = 524288 [pid 5054] rmdir("./5/file2" [pid 5136] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5139] chdir("./6" [pid 5136] <... openat resumed>) = 4 [pid 5054] <... rmdir resumed>) = 0 [pid 5136] ioctl(4, LOOP_SET_FD, 3 [pid 5054] getdents64(3, [pid 5139] <... chdir resumed>) = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] <... ioctl resumed>) = 0 [pid 5139] setpgid(0, 0 [pid 5056] close(3 [pid 5139] <... setpgid resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5139] <... openat resumed>) = 3 [pid 5139] write(3, "1000", 4) = 4 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5139] close(3 [pid 5054] close(3 [pid 5139] <... close resumed>) = 0 [pid 5138] munmap(0x7f6dade00000, 138412032 [pid 5139] symlink("/dev/binderfs", "./binderfs" [pid 5054] <... close resumed>) = 0 [pid 5140] chdir("./6" [pid 5139] <... symlink resumed>) = 0 [pid 5138] <... munmap resumed>) = 0 [pid 5136] <... ioctl resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5141 [pid 5054] rmdir("./5" [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5141 attached [pid 5140] <... chdir resumed>) = 0 [pid 5139] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5138] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5136] close(3 [pid 5054] <... rmdir resumed>) = 0 [pid 5141] set_robust_list(0x555556b376a0, 24 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5138] <... openat resumed>) = 4 [pid 5136] <... close resumed>) = 0 [pid 5054] mkdir("./6", 0777 [pid 5141] <... set_robust_list resumed>) = 0 [pid 5140] <... prctl resumed>) = 0 [pid 5139] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5138] ioctl(4, LOOP_SET_FD, 3 [pid 5136] close(4 [pid 5141] chdir("./6" [pid 5140] setpgid(0, 0 [pid 5139] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5141] <... chdir resumed>) = 0 [pid 5140] <... setpgid resumed>) = 0 [pid 5139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5136] <... close resumed>) = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] <... mmap resumed>) = 0x7f6db6363000 [pid 5141] <... prctl resumed>) = 0 [pid 5139] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5136] mkdir("./file2", 0777 [pid 5141] setpgid(0, 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] <... mprotect resumed>) = 0 [pid 5141] <... setpgid resumed>) = 0 [pid 5139] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5140] <... openat resumed>) = 3 [pid 5139] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5136] <... mkdir resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5141] <... openat resumed>) = 3 [pid 5139] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5141] write(3, "1000", 4./strace-static-x86_64: Process 5142 attached ) = 4 [pid 5140] write(3, "1000", 4 [pid 5139] <... clone3 resumed> => {parent_tid=[5142]}, 88) = 5142 [pid 5054] <... openat resumed>) = 3 [pid 5142] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5141] close(3 [pid 5140] <... write resumed>) = 4 [pid 5139] rt_sigprocmask(SIG_SETMASK, [], [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5142] <... rseq resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5140] close(3 [pid 5139] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5142] set_robust_list(0x7f6db63839a0, 24 [pid 5141] symlink("/dev/binderfs", "./binderfs" [pid 5140] <... close resumed>) = 0 [pid 5139] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5141] <... symlink resumed>) = 0 [pid 5139] <... futex resumed>) = 0 [pid 5138] <... ioctl resumed>) = 0 [pid 5142] rt_sigprocmask(SIG_SETMASK, [], [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5136] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5142] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5141] <... futex resumed>) = 0 [pid 5140] symlink("/dev/binderfs", "./binderfs" [pid 5138] close(3 [pid 5142] memfd_create("syzkaller", 0 [pid 5141] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5138] <... close resumed>) = 0 [pid 5142] <... memfd_create resumed>) = 3 [pid 5141] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5138] close(4 [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5140] <... symlink resumed>) = 0 [pid 5138] <... close resumed>) = 0 [pid 5142] <... mmap resumed>) = 0x7f6dade00000 [pid 5141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5140] <... futex resumed>) = 0 [pid 5138] mkdir("./file2", 0777 [pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5141] <... mmap resumed>) = 0x7f6db6363000 [pid 5140] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5138] <... mkdir resumed>) = 0 [pid 5136] <... mount resumed>) = 0 [pid 5140] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5136] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5136] <... openat resumed>) = 3 [pid 5140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5136] chdir("./file2" [pid 5140] <... mmap resumed>) = 0x7f6db6363000 [pid 5136] <... chdir resumed>) = 0 [pid 5141] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5140] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5136] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5141] <... mprotect resumed>) = 0 [ 82.084778][ T5136] loop1: detected capacity change from 0 to 1024 [ 82.104402][ T5138] loop2: detected capacity change from 0 to 1024 [pid 5138] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5142] <... write resumed>) = 524288 [pid 5141] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5140] <... mprotect resumed>) = 0 [pid 5136] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5136] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5136] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5135] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5143]}, 88) = 5143 [pid 5141] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5141] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5143 attached [pid 5143] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5135] <... futex resumed>) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5143] <... rseq resumed>) = 0 [pid 5136] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5143] memfd_create("syzkaller", 0) = 3 [pid 5142] munmap(0x7f6dade00000, 138412032 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] <... munmap resumed>) = 0 [pid 5143] <... mmap resumed>) = 0x7f6dade00000 [pid 5136] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5142] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5136] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5142] ioctl(4, LOOP_SET_FD, 3 [pid 5140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5136] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5138] <... mount resumed>) = 0 [pid 5136] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5135] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... clone3 resumed> => {parent_tid=[5144]}, 88) = 5144 [pid 5136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5135] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5144 attached [pid 5142] <... ioctl resumed>) = 0 [pid 5140] rt_sigprocmask(SIG_SETMASK, [], [pid 5138] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5136] memfd_create("syzkaller", 0 [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] close(3 [pid 5144] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5136] <... memfd_create resumed>) = 4 [pid 5144] <... rseq resumed>) = 0 [pid 5140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5140] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] set_robust_list(0x7f6db63839a0, 24 [pid 5138] <... openat resumed>) = 3 [pid 5144] <... set_robust_list resumed>) = 0 [pid 5138] chdir("./file2" [pid 5144] rt_sigprocmask(SIG_SETMASK, [], [pid 5138] <... chdir resumed>) = 0 [pid 5144] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5144] memfd_create("syzkaller", 0 [pid 5138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] <... mmap resumed>) = 0x7f6dade00000 [pid 5140] <... futex resumed>) = 0 [pid 5143] <... write resumed>) = 524288 [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5138] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5144] <... memfd_create resumed>) = 3 [pid 5138] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... close resumed>) = 0 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5138] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5137] <... futex resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... mmap resumed>) = 0x7f6dade00000 [pid 5143] munmap(0x7f6dade00000, 138412032 [pid 5138] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5143] <... munmap resumed>) = 0 [pid 5142] close(3 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5145 ./strace-static-x86_64: Process 5145 attached [pid 5142] <... close resumed>) = 0 [pid 5138] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] set_robust_list(0x555556b376a0, 24 [pid 5142] close(4 [pid 5138] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5145] <... set_robust_list resumed>) = 0 [ 82.196412][ T5142] loop4: detected capacity change from 0 to 1024 [pid 5145] chdir("./6" [pid 5143] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5142] <... close resumed>) = 0 [pid 5138] memfd_create("syzkaller", 0 [pid 5137] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] mkdir("./file2", 0777 [pid 5138] <... memfd_create resumed>) = 4 [pid 5137] <... futex resumed>) = 0 [pid 5142] <... mkdir resumed>) = 0 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5143] <... openat resumed>) = 4 [pid 5138] <... mmap resumed>) = 0x7f6dade00000 [pid 5145] <... chdir resumed>) = 0 [pid 5143] ioctl(4, LOOP_SET_FD, 3 [pid 5136] <... write resumed>) = 524288 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5136] munmap(0x7f6dade00000, 138412032 [pid 5145] <... prctl resumed>) = 0 [pid 5144] <... write resumed>) = 524288 [pid 5142] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5136] <... munmap resumed>) = 0 [pid 5145] setpgid(0, 0 [pid 5138] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5136] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5145] <... setpgid resumed>) = 0 [pid 5136] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] close(4 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5144] munmap(0x7f6dade00000, 138412032) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 82.267065][ T5143] loop5: detected capacity change from 0 to 1024 [pid 5144] ioctl(4, LOOP_SET_FD, 3 [pid 5145] <... openat resumed>) = 3 [pid 5143] <... ioctl resumed>) = 0 [pid 5136] <... close resumed>) = 0 [pid 5145] write(3, "1000", 4 [pid 5143] close(3 [pid 5145] <... write resumed>) = 4 [pid 5143] <... close resumed>) = 0 [pid 5138] <... write resumed>) = 524288 [pid 5145] close(3 [pid 5143] close(4) = 0 [pid 5145] <... close resumed>) = 0 [pid 5138] munmap(0x7f6dade00000, 138412032 [pid 5145] symlink("/dev/binderfs", "./binderfs" [pid 5143] mkdir("./file2", 0777 [pid 5138] <... munmap resumed>) = 0 [pid 5143] <... mkdir resumed>) = 0 [pid 5145] <... symlink resumed>) = 0 [pid 5143] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5142] <... mount resumed>) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5136] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5144] <... ioctl resumed>) = 0 [pid 5142] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] close(3 [pid 5142] <... openat resumed>) = 3 [pid 5138] close(4 [pid 5136] openat(AT_FDCWD, ".", O_RDONLY [pid 5135] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] <... futex resumed>) = 0 [pid 5144] <... close resumed>) = 0 [pid 5142] chdir("./file2" [pid 5138] <... close resumed>) = 0 [pid 5136] <... openat resumed>) = 4 [pid 5135] <... futex resumed>) = 0 [pid 5145] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5136] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5145] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5136] <... futex resumed>) = 0 [pid 5135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5145] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5136] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5135] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5144] close(4 [pid 5142] <... chdir resumed>) = 0 [pid 5136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5135] <... futex resumed>) = 0 [pid 5144] <... close resumed>) = 0 [pid 5142] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5136] openat(AT_FDCWD, ".", O_RDONLY [pid 5145] <... mmap resumed>) = 0x7f6db6363000 [pid 5144] mkdir("./file2", 0777 [pid 5142] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] <... openat resumed>) = 5 [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5145] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5144] <... mkdir resumed>) = 0 [pid 5142] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5142] <... futex resumed>) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5138] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5136] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5142] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5139] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [ 82.312318][ T5144] loop0: detected capacity change from 0 to 1024 [pid 5138] openat(AT_FDCWD, ".", O_RDONLY [pid 5137] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] <... mprotect resumed>) = 0 [pid 5142] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5139] <... futex resumed>) = 0 [pid 5138] <... openat resumed>) = 4 [pid 5137] <... futex resumed>) = 0 [pid 5136] renameat2(5, "./file2", 4, "./file1", 0 [pid 5135] <... futex resumed>) = 0 [pid 5145] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5142] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5145] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5144] <... mount resumed>) = 0 [pid 5142] <... futex resumed>) = 0 [pid 5139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] <... futex resumed>) = 0 [pid 5137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5136] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5144] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5142] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5139] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5137] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5144] <... openat resumed>) = 3 [pid 5142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5139] <... futex resumed>) = 0 [pid 5138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5137] <... futex resumed>) = 0 [pid 5136] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] chdir("./file2" [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5146 attached [pid 5145] <... clone3 resumed> => {parent_tid=[5146]}, 88) = 5146 [pid 5144] <... chdir resumed>) = 0 [pid 5142] memfd_create("syzkaller", 0 [pid 5138] openat(AT_FDCWD, ".", O_RDONLY [pid 5136] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5146] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5143] <... mount resumed>) = 0 [pid 5142] <... memfd_create resumed>) = 4 [pid 5138] <... openat resumed>) = 5 [pid 5135] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] <... rseq resumed>) = 0 [pid 5145] rt_sigprocmask(SIG_SETMASK, [], [pid 5144] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5138] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5146] set_robust_list(0x7f6db63839a0, 24 [pid 5145] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5144] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5142] <... mmap resumed>) = 0x7f6dade00000 [pid 5138] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5136] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5135] <... futex resumed>) = 0 [pid 5146] <... set_robust_list resumed>) = 0 [pid 5145] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] <... futex resumed>) = 1 [pid 5140] <... futex resumed>) = 0 [pid 5137] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] rt_sigprocmask(SIG_SETMASK, [], [pid 5145] <... futex resumed>) = 0 [pid 5144] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] <... openat resumed>) = 3 [pid 5140] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] renameat2(5, "./file2", 4, "./file1", 0 [pid 5137] <... futex resumed>) = 0 [pid 5136] <... futex resumed>) = 0 [pid 5135] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5143] chdir("./file2" [pid 5142] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5140] <... futex resumed>) = 0 [pid 5138] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5146] memfd_create("syzkaller", 0 [pid 5144] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5143] <... chdir resumed>) = 0 [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5135] exit_group(0 [pid 5146] <... memfd_create resumed>) = 3 [pid 5144] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5138] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5144] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5146] <... mmap resumed>) = 0x7f6dade00000 [pid 5144] <... futex resumed>) = 0 [pid 5138] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5137] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5144] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5138] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5137] <... futex resumed>) = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... futex resumed>) = ? [pid 5135] <... exit_group resumed>) = ? [pid 5143] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5143] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] <... write resumed>) = 524288 [pid 5140] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] <... futex resumed>) = 0 [pid 5137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5136] +++ exited with 0 +++ [pid 5135] +++ exited with 0 +++ [pid 5144] <... futex resumed>) = 0 [pid 5143] <... futex resumed>) = 1 [pid 5140] <... futex resumed>) = 1 [pid 5138] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5137] exit_group(0 [pid 5144] memfd_create("syzkaller", 0 [pid 5138] <... futex resumed>) = ? [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5137] <... exit_group resumed>) = ? [pid 5143] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5144] <... memfd_create resumed>) = 4 [pid 5141] <... futex resumed>) = 0 [pid 5138] +++ exited with 0 +++ [pid 5137] +++ exited with 0 +++ [pid 5052] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5141] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5144] <... mmap resumed>) = 0x7f6dade00000 [pid 5143] <... futex resumed>) = 0 [pid 5141] <... futex resumed>) = 1 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5052] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5146] <... write resumed>) = 524288 [pid 5144] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5143] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5142] munmap(0x7f6dade00000, 138412032 [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5052] <... openat resumed>) = 3 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5142] <... munmap resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5142] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5053] <... openat resumed>) = 3 [pid 5052] getdents64(3, [pid 5143] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5142] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] newfstatat(3, "", [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5142] close(4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5053] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5142] <... close resumed>) = 0 [pid 5141] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5146] munmap(0x7f6dade00000, 138412032 [pid 5141] <... futex resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5146] <... munmap resumed>) = 0 [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] unlink("./6/binderfs" [pid 5144] <... write resumed>) = 524288 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... unlink resumed>) = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5142] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] <... openat resumed>) = 4 [pid 5142] <... futex resumed>) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5052] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] memfd_create("syzkaller", 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5146] ioctl(4, LOOP_SET_FD, 3 [pid 5143] <... memfd_create resumed>) = 4 [pid 5142] openat(AT_FDCWD, ".", O_RDONLY [pid 5139] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5146] <... ioctl resumed>) = 0 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] <... openat resumed>) = 4 [pid 5139] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5143] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] unlink("./6/binderfs" [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... unlink resumed>) = 0 [pid 5053] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5142] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] openat(AT_FDCWD, ".", O_RDONLY [pid 5139] <... futex resumed>) = 0 [pid 5142] <... openat resumed>) = 5 [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5144] munmap(0x7f6dade00000, 138412032 [pid 5142] renameat2(5, "./file2", 4, "./file1", 0 [pid 5144] <... munmap resumed>) = 0 [pid 5142] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5052] <... umount2 resumed>) = 0 [pid 5142] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5142] <... futex resumed>) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5142] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5139] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5139] <... futex resumed>) = 0 [pid 5144] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5139] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = 0 [pid 5052] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5144] close(4 [pid 5142] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./6/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5146] close(3 [pid 5144] <... close resumed>) = 0 [pid 5143] <... write resumed>) = 524288 [pid 5142] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] <... close resumed>) = 0 [pid 5144] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] <... futex resumed>) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5146] close(4 [pid 5142] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 82.497516][ T5146] loop3: detected capacity change from 0 to 1024 [pid 5139] exit_group(0 [pid 5146] <... close resumed>) = 0 [pid 5144] <... futex resumed>) = 1 [pid 5143] munmap(0x7f6dade00000, 138412032 [pid 5142] <... futex resumed>) = ? [pid 5140] <... futex resumed>) = 0 [pid 5139] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5146] mkdir("./file2", 0777 [pid 5144] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] +++ exited with 0 +++ [pid 5140] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./6/file2", [pid 5052] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5146] <... mkdir resumed>) = 0 [pid 5144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5143] <... munmap resumed>) = 0 [pid 5140] <... futex resumed>) = 0 [pid 5139] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5144] openat(AT_FDCWD, ".", O_RDONLY [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... openat resumed>) = 4 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5053] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(4, "", [pid 5144] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5146] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5144] <... futex resumed>) = 1 [pid 5143] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5140] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(4, [pid 5144] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5140] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 4 [pid 5144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5143] close(4 [pid 5140] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(4, "", [pid 5144] openat(AT_FDCWD, ".", O_RDONLY [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5144] <... openat resumed>) = 5 [pid 5055] <... openat resumed>) = 3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5144] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(3, "", [pid 5053] getdents64(4, [pid 5144] <... futex resumed>) = 1 [pid 5140] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5144] renameat2(5, "./file2", 4, "./file1", 0 [pid 5140] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5053] getdents64(4, [pid 5144] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5143] <... close resumed>) = 0 [pid 5140] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5144] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] <... futex resumed>) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5144] <... futex resumed>) = 0 [pid 5140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] close(4 [pid 5144] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = 0 [pid 5140] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5053] <... close resumed>) = 0 [pid 5146] <... mount resumed>) = 0 [pid 5144] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] rmdir("./6/file2" [pid 5052] getdents64(4, [pid 5146] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5144] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5143] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] unlink("./6/binderfs" [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5146] <... openat resumed>) = 3 [pid 5144] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] <... openat resumed>) = 4 [pid 5143] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... futex resumed>) = 0 [pid 5144] <... futex resumed>) = 1 [pid 5143] <... futex resumed>) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5140] exit_group(0 [pid 5143] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... exit_group resumed>) = ? [pid 5146] chdir("./file2" [pid 5143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] close(4 [pid 5141] <... futex resumed>) = 0 [pid 5146] <... chdir resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] rmdir("./6/file2" [pid 5146] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] +++ exited with 0 +++ [pid 5143] openat(AT_FDCWD, ".", O_RDONLY [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] +++ exited with 0 +++ [pid 5052] <... rmdir resumed>) = 0 [pid 5146] <... futex resumed>) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5143] <... openat resumed>) = 5 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5146] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] getdents64(3, [pid 5052] getdents64(3, [pid 5146] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5145] <... futex resumed>) = 0 [pid 5143] <... futex resumed>) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5146] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5146] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5141] <... futex resumed>) = 0 [pid 5053] close(3 [pid 5052] close(3 [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5143] renameat2(5, "./file2", 4, "./file1", 0 [pid 5053] rmdir("./6" [pid 5052] rmdir("./6" [pid 5143] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5143] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5143] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... rmdir resumed>) = 0 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... rmdir resumed>) = 0 [pid 5053] mkdir("./7", 0777 [pid 5051] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5052] mkdir("./7", 0777 [pid 5143] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5143] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5143] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] exit_group(0 [pid 5143] <... futex resumed>) = ? [pid 5141] <... exit_group resumed>) = ? [pid 5052] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5146] <... futex resumed>) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5143] +++ exited with 0 +++ [pid 5141] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5146] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... openat resumed>) = 3 [pid 5146] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5145] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... openat resumed>) = 3 [pid 5146] memfd_create("syzkaller", 0 [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] newfstatat(AT_FDCWD, "./6/file2", [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] newfstatat(3, "", [pid 5146] <... memfd_create resumed>) = 4 [pid 5053] <... openat resumed>) = 3 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] <... mmap resumed>) = 0x7f6dade00000 [pid 5051] getdents64(3, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5056] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... openat resumed>) = 4 [pid 5051] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... openat resumed>) = 3 [pid 5055] newfstatat(4, "", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(3, "", [pid 5051] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] getdents64(3, [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] unlink("./6/binderfs") = 0 [pid 5056] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, [pid 5146] <... write resumed>) = 524288 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5146] munmap(0x7f6dade00000, 138412032 [pid 5056] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5055] close(4 [pid 5146] <... munmap resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./6/file2" [pid 5056] unlink("./6/binderfs" [pid 5055] <... rmdir resumed>) = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] <... unlink resumed>) = 0 [pid 5146] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] close(4 [pid 5056] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5146] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5055] close(3) = 0 [pid 5055] rmdir("./6") = 0 [pid 5055] mkdir("./7", 0777) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5051] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./6/file2", [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5051] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5146] <... futex resumed>) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5052] <... ioctl resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5145] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] close(3 [pid 5146] openat(AT_FDCWD, ".", O_RDONLY [pid 5145] <... futex resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] close(3 [pid 5051] <... openat resumed>) = 4 [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5056] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5147 attached [pid 5146] <... openat resumed>) = 4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5147] set_robust_list(0x555556b376a0, 24 [pid 5051] getdents64(4, [pid 5146] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5146] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5148 attached [pid 5147] <... set_robust_list resumed>) = 0 [pid 5145] <... futex resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./6/file2", [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5147 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5145] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] chdir("./7" [pid 5146] <... futex resumed>) = 0 [pid 5145] <... futex resumed>) = 1 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5148 [pid 5051] getdents64(4, [pid 5148] set_robust_list(0x555556b376a0, 24 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5148] <... set_robust_list resumed>) = 0 [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] close(4 [pid 5056] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] chdir("./7" [pid 5051] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./6/file2" [pid 5056] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5146] openat(AT_FDCWD, ".", O_RDONLY) = 5 [pid 5146] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5148] <... chdir resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5145] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] newfstatat(4, "", [pid 5145] <... futex resumed>) = 0 [pid 5051] getdents64(3, [pid 5148] <... prctl resumed>) = 0 [pid 5147] <... chdir resumed>) = 0 [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5148] setpgid(0, 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] getdents64(4, [pid 5051] close(3 [pid 5148] <... setpgid resumed>) = 0 [pid 5147] <... prctl resumed>) = 0 [pid 5146] renameat2(5, "./file2", 4, "./file1", 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... close resumed>) = 0 [pid 5147] setpgid(0, 0 [pid 5051] rmdir("./6" [pid 5147] <... setpgid resumed>) = 0 [pid 5056] getdents64(4, [pid 5146] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5146] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] <... futex resumed>) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5056] close(4 [pid 5051] mkdir("./7", 0777 [pid 5145] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5148] <... openat resumed>) = 3 [pid 5147] <... openat resumed>) = 3 [pid 5146] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5145] <... futex resumed>) = 0 [pid 5056] rmdir("./6/file2" [pid 5055] <... ioctl resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5148] write(3, "1000", 4 [pid 5147] write(3, "1000", 4 [pid 5145] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5147] <... write resumed>) = 4 [pid 5148] <... write resumed>) = 4 [pid 5146] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5056] <... rmdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5148] close(3 [pid 5147] close(3 [pid 5148] <... close resumed>) = 0 [pid 5147] <... close resumed>) = 0 [pid 5146] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(3, [pid 5051] <... openat resumed>) = 3 [pid 5148] symlink("/dev/binderfs", "./binderfs" [pid 5147] symlink("/dev/binderfs", "./binderfs" [pid 5148] <... symlink resumed>) = 0 [pid 5147] <... symlink resumed>) = 0 [pid 5146] <... futex resumed>) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] exit_group(0 [pid 5056] close(3 [pid 5148] <... futex resumed>) = 0 [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] <... exit_group resumed>) = ? [pid 5056] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5056] rmdir("./6" [pid 5146] +++ exited with 0 +++ [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... rmdir resumed>) = 0 [pid 5148] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5147] <... futex resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5149 [pid 5147] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 ./strace-static-x86_64: Process 5149 attached [pid 5148] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5149] set_robust_list(0x555556b376a0, 24 [pid 5148] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] mkdir("./7", 0777 [pid 5149] <... set_robust_list resumed>) = 0 [pid 5148] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5149] chdir("./7" [pid 5148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5147] <... mmap resumed>) = 0x7f6db6363000 [pid 5145] +++ exited with 0 +++ [pid 5056] <... mkdir resumed>) = 0 [pid 5148] <... mmap resumed>) = 0x7f6db6363000 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5148] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5147] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5149] <... chdir resumed>) = 0 [pid 5148] <... mprotect resumed>) = 0 [pid 5147] <... mprotect resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] <... restart_syscall resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5148] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... openat resumed>) = 3 [pid 5147] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5149] <... prctl resumed>) = 0 [pid 5054] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5149] setpgid(0, 0 [pid 5147] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5051] close(3 [pid 5149] <... setpgid resumed>) = 0 [pid 5148] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5051] <... close resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5150 attached ./strace-static-x86_64: Process 5151 attached [pid 5150] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5151] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5150] <... rseq resumed>) = 0 [pid 5151] <... rseq resumed>) = 0 [pid 5150] set_robust_list(0x7f6db63839a0, 24 [pid 5151] set_robust_list(0x7f6db63839a0, 24 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] <... clone3 resumed> => {parent_tid=[5151]}, 88) = 5151 [pid 5147] <... clone3 resumed> => {parent_tid=[5150]}, 88) = 5150 [pid 5054] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5152 attached [pid 5151] <... set_robust_list resumed>) = 0 [pid 5150] rt_sigprocmask(SIG_SETMASK, [], [pid 5149] <... openat resumed>) = 3 [pid 5148] rt_sigprocmask(SIG_SETMASK, [], [pid 5147] rt_sigprocmask(SIG_SETMASK, [], [pid 5054] <... openat resumed>) = 3 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5152 [pid 5152] set_robust_list(0x555556b376a0, 24 [pid 5151] rt_sigprocmask(SIG_SETMASK, [], [pid 5150] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5149] write(3, "1000", 4 [pid 5054] newfstatat(3, "", [pid 5152] <... set_robust_list resumed>) = 0 [pid 5151] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5150] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5152] chdir("./7" [pid 5151] memfd_create("syzkaller", 0 [pid 5150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5149] <... write resumed>) = 4 [pid 5148] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... memfd_create resumed>) = 3 [pid 5150] memfd_create("syzkaller", 0 [pid 5149] close(3 [pid 5148] <... futex resumed>) = 0 [pid 5147] <... futex resumed>) = 0 [pid 5152] <... chdir resumed>) = 0 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5150] <... memfd_create resumed>) = 3 [pid 5149] <... close resumed>) = 0 [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] getdents64(3, [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... mmap resumed>) = 0x7f6dade00000 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5149] symlink("/dev/binderfs", "./binderfs" [pid 5152] <... prctl resumed>) = 0 [pid 5150] <... mmap resumed>) = 0x7f6dade00000 [pid 5149] <... symlink resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5152] setpgid(0, 0) = 0 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5149] <... futex resumed>) = 0 [pid 5056] <... ioctl resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5152] <... openat resumed>) = 3 [pid 5149] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5054] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5149] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] close(3 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5149] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] <... close resumed>) = 0 [pid 5149] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] unlink("./6/binderfs" [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5152] write(3, "1000", 4 [pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5152] <... write resumed>) = 4 [pid 5152] close(3) = 0 [pid 5149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5152] symlink("/dev/binderfs", "./binderfs" [pid 5149] <... mmap resumed>) = 0x7f6db6363000 [pid 5054] <... unlink resumed>) = 0 [pid 5149] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5153 ./strace-static-x86_64: Process 5153 attached [pid 5152] <... symlink resumed>) = 0 [pid 5149] <... mprotect resumed>) = 0 [pid 5054] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5149] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5153] set_robust_list(0x555556b376a0, 24 [pid 5152] <... futex resumed>) = 0 [pid 5149] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5153] <... set_robust_list resumed>) = 0 [pid 5152] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5152] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5154 attached [pid 5153] chdir("./7" [pid 5152] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5154] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5153] <... chdir resumed>) = 0 [pid 5152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5151] <... write resumed>) = 524288 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5149] <... clone3 resumed> => {parent_tid=[5154]}, 88) = 5154 [pid 5153] <... prctl resumed>) = 0 [pid 5154] <... rseq resumed>) = 0 [pid 5153] setpgid(0, 0 [pid 5152] <... mmap resumed>) = 0x7f6db6363000 [pid 5150] <... write resumed>) = 524288 [pid 5153] <... setpgid resumed>) = 0 [pid 5154] set_robust_list(0x7f6db63839a0, 24 [pid 5152] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5154] <... set_robust_list resumed>) = 0 [pid 5152] <... mprotect resumed>) = 0 [pid 5154] rt_sigprocmask(SIG_SETMASK, [], [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5150] munmap(0x7f6dade00000, 138412032 [pid 5154] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5152] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5150] <... munmap resumed>) = 0 [pid 5154] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5152] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5150] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5153] <... openat resumed>) = 3 [pid 5152] <... clone3 resumed> => {parent_tid=[5155]}, 88) = 5155 [pid 5151] munmap(0x7f6dade00000, 138412032 [pid 5150] ioctl(4, LOOP_SET_FD, 3 [pid 5149] rt_sigprocmask(SIG_SETMASK, [], [pid 5152] rt_sigprocmask(SIG_SETMASK, [], [pid 5151] <... munmap resumed>) = 0 [pid 5149] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5149] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 ./strace-static-x86_64: Process 5155 attached [pid 5154] <... futex resumed>) = 0 [pid 5153] write(3, "1000", 4 [pid 5152] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5155] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5154] memfd_create("syzkaller", 0 [pid 5153] <... write resumed>) = 4 [pid 5152] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... openat resumed>) = 4 [pid 5054] <... umount2 resumed>) = 0 [pid 5155] <... rseq resumed>) = 0 [pid 5154] <... memfd_create resumed>) = 3 [pid 5152] <... futex resumed>) = 0 [pid 5151] ioctl(4, LOOP_SET_FD, 3 [pid 5155] set_robust_list(0x7f6db63839a0, 24 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5153] close(3 [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5151] <... ioctl resumed>) = 0 [pid 5054] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5155] <... set_robust_list resumed>) = 0 [pid 5154] <... mmap resumed>) = 0x7f6dade00000 [pid 5153] <... close resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5155] rt_sigprocmask(SIG_SETMASK, [], [pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5153] symlink("/dev/binderfs", "./binderfs" [pid 5054] newfstatat(AT_FDCWD, "./6/file2", [pid 5155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5155] memfd_create("syzkaller", 0 [pid 5153] <... symlink resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] umount2("./6/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5153] <... futex resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5155] <... memfd_create resumed>) = 3 [pid 5153] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5150] <... ioctl resumed>) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5153] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5150] close(3 [pid 5155] <... mmap resumed>) = 0x7f6dade00000 [pid 5153] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5150] <... close resumed>) = 0 [pid 5054] newfstatat(4, "", [pid 5153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5153] <... mmap resumed>) = 0x7f6db6363000 [pid 5155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5154] <... write resumed>) = 524288 [pid 5153] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5150] close(4 [pid 5054] getdents64(4, [ 82.954907][ T5150] loop2: detected capacity change from 0 to 1024 [ 82.967239][ T5151] loop1: detected capacity change from 0 to 1024 [pid 5151] close(3 [pid 5153] <... mprotect resumed>) = 0 [pid 5151] <... close resumed>) = 0 [pid 5150] <... close resumed>) = 0 [pid 5153] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5151] close(4 [pid 5150] mkdir("./file2", 0777 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5153] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5151] <... close resumed>) = 0 [pid 5150] <... mkdir resumed>) = 0 [pid 5054] getdents64(4, [pid 5155] <... write resumed>) = 524288 [pid 5153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5151] mkdir("./file2", 0777 [pid 5150] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5154] munmap(0x7f6dade00000, 138412032 [pid 5153] <... clone3 resumed> => {parent_tid=[5156]}, 88) = 5156 [pid 5154] <... munmap resumed>) = 0 [pid 5153] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5156 attached [pid 5154] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] close(4 [pid 5156] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5153] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... close resumed>) = 0 [pid 5156] <... rseq resumed>) = 0 [pid 5153] <... futex resumed>) = 0 [pid 5054] rmdir("./6/file2" [pid 5156] set_robust_list(0x7f6db63839a0, 24 [pid 5154] <... openat resumed>) = 4 [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5156] <... set_robust_list resumed>) = 0 [pid 5154] ioctl(4, LOOP_SET_FD, 3 [pid 5054] <... rmdir resumed>) = 0 [pid 5155] munmap(0x7f6dade00000, 138412032) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5155] ioctl(4, LOOP_SET_FD, 3 [pid 5156] rt_sigprocmask(SIG_SETMASK, [], [pid 5054] getdents64(3, [pid 5156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5156] memfd_create("syzkaller", 0 [pid 5151] <... mkdir resumed>) = 0 [pid 5054] close(3) = 0 [pid 5054] rmdir("./6" [pid 5156] <... memfd_create resumed>) = 3 [pid 5155] <... ioctl resumed>) = 0 [pid 5151] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5054] <... rmdir resumed>) = 0 [pid 5054] mkdir("./7", 0777 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5155] close(3) = 0 [pid 5155] close(4) = 0 [pid 5156] <... mmap resumed>) = 0x7f6dade00000 [pid 5155] mkdir("./file2", 0777) = 0 [pid 5155] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5154] <... ioctl resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5154] close(3 [pid 5151] <... mount resumed>) = 0 [pid 5154] <... close resumed>) = 0 [pid 5154] close(4 [pid 5151] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5154] <... close resumed>) = 0 [pid 5154] mkdir("./file2", 0777) = 0 [pid 5151] <... openat resumed>) = 3 [pid 5150] <... mount resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5154] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5151] chdir("./file2" [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5150] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5151] <... chdir resumed>) = 0 [pid 5150] <... openat resumed>) = 3 [pid 5151] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5150] chdir("./file2" [pid 5151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] <... chdir resumed>) = 0 [pid 5155] <... mount resumed>) = 0 [pid 5151] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5155] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [ 83.052446][ T5154] loop4: detected capacity change from 0 to 1024 [ 83.057304][ T5155] loop0: detected capacity change from 0 to 1024 [pid 5151] <... futex resumed>) = 1 [pid 5150] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5148] <... futex resumed>) = 0 [pid 5155] <... openat resumed>) = 3 [pid 5155] chdir("./file2") = 0 [pid 5150] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5147] <... futex resumed>) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5147] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5150] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5148] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 0 [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5155] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5156] <... write resumed>) = 524288 [pid 5155] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5154] <... mount resumed>) = 0 [pid 5152] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5150] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5156] munmap(0x7f6dade00000, 138412032 [pid 5154] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5152] <... futex resumed>) = 0 [pid 5155] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... openat resumed>) = 3 [pid 5151] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5147] <... futex resumed>) = 0 [pid 5156] <... munmap resumed>) = 0 [pid 5147] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = 1 [pid 5147] <... futex resumed>) = 0 [pid 5151] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5155] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] memfd_create("syzkaller", 0 [pid 5148] <... futex resumed>) = 0 [pid 5155] <... futex resumed>) = 1 [pid 5154] chdir("./file2" [pid 5152] <... futex resumed>) = 0 [pid 5152] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5155] memfd_create("syzkaller", 0) = 4 [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5150] <... memfd_create resumed>) = 4 [pid 5155] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5154] <... chdir resumed>) = 0 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5156] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5154] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5148] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] <... openat resumed>) = 4 [pid 5154] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5148] <... futex resumed>) = 1 [pid 5150] <... mmap resumed>) = 0x7f6dade00000 [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5151] <... futex resumed>) = 0 [pid 5156] ioctl(4, LOOP_SET_FD, 3 [pid 5154] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] memfd_create("syzkaller", 0 [pid 5150] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... ioctl resumed>) = 0 [pid 5154] <... futex resumed>) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5054] close(3 [pid 5154] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5149] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5151] <... memfd_create resumed>) = 4 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5151] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5155] <... write resumed>) = 524288 [pid 5154] <... symlink resumed>) = -1 ENOSPC (No space left on device) ./strace-static-x86_64: Process 5157 attached [pid 5156] <... ioctl resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5157 [pid 5157] set_robust_list(0x555556b376a0, 24) = 0 [pid 5156] close(3 [pid 5154] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] chdir("./7" [pid 5154] <... futex resumed>) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5156] <... close resumed>) = 0 [pid 5155] munmap(0x7f6dade00000, 138412032 [pid 5154] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5150] <... write resumed>) = 524288 [pid 5149] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... chdir resumed>) = 0 [pid 5156] close(4 [pid 5155] <... munmap resumed>) = 0 [pid 5154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5149] <... futex resumed>) = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5156] <... close resumed>) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5154] memfd_create("syzkaller", 0 [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5156] mkdir("./file2", 0777 [pid 5155] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5154] <... memfd_create resumed>) = 4 [pid 5151] <... write resumed>) = 524288 [pid 5150] munmap(0x7f6dade00000, 138412032 [pid 5155] close(4 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5155] <... close resumed>) = 0 [pid 5154] <... mmap resumed>) = 0x7f6dade00000 [pid 5150] <... munmap resumed>) = 0 [pid 5156] <... mkdir resumed>) = 0 [pid 5154] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5151] munmap(0x7f6dade00000, 138412032 [pid 5157] <... prctl resumed>) = 0 [pid 5157] setpgid(0, 0 [pid 5151] <... munmap resumed>) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5157] <... setpgid resumed>) = 0 [pid 5156] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5150] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] close(4 [pid 5157] <... openat resumed>) = 3 [pid 5151] close(4 [pid 5157] write(3, "1000", 4 [pid 5151] <... close resumed>) = 0 [pid 5157] <... write resumed>) = 4 [ 83.163499][ T5156] loop5: detected capacity change from 0 to 1024 [pid 5157] close(3 [pid 5155] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... close resumed>) = 0 [pid 5155] <... futex resumed>) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5155] openat(AT_FDCWD, ".", O_RDONLY [pid 5152] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... openat resumed>) = 4 [pid 5152] <... futex resumed>) = 0 [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5157] <... close resumed>) = 0 [pid 5150] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] symlink("/dev/binderfs", "./binderfs" [pid 5150] <... futex resumed>) = 1 [pid 5147] <... futex resumed>) = 0 [pid 5151] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] openat(AT_FDCWD, ".", O_RDONLY [pid 5147] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... symlink resumed>) = 0 [pid 5151] <... futex resumed>) = 1 [pid 5150] <... openat resumed>) = 4 [pid 5148] <... futex resumed>) = 0 [pid 5147] <... futex resumed>) = 0 [pid 5151] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5150] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... futex resumed>) = 0 [pid 5150] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5148] <... futex resumed>) = 0 [pid 5147] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = 0 [pid 5151] openat(AT_FDCWD, ".", O_RDONLY [pid 5150] <... futex resumed>) = 0 [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5147] <... futex resumed>) = 1 [pid 5157] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5151] <... openat resumed>) = 4 [pid 5150] openat(AT_FDCWD, ".", O_RDONLY [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5157] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5151] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... openat resumed>) = 5 [pid 5157] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5151] <... futex resumed>) = 1 [pid 5150] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] <... futex resumed>) = 0 [pid 5157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5155] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] <... write resumed>) = 524288 [pid 5151] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5150] <... futex resumed>) = 1 [pid 5148] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5155] <... futex resumed>) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5150] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] <... futex resumed>) = 0 [pid 5147] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... mmap resumed>) = 0x7f6db6363000 [pid 5156] <... mount resumed>) = 0 [pid 5155] openat(AT_FDCWD, ".", O_RDONLY [pid 5154] munmap(0x7f6dade00000, 138412032 [pid 5152] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] openat(AT_FDCWD, ".", O_RDONLY [pid 5150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5147] <... futex resumed>) = 0 [pid 5157] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5156] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5155] <... openat resumed>) = 5 [pid 5154] <... munmap resumed>) = 0 [pid 5152] <... futex resumed>) = 0 [pid 5151] <... openat resumed>) = 5 [pid 5150] renameat2(5, "./file2", 4, "./file1", 0 [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5157] <... mprotect resumed>) = 0 [pid 5156] <... openat resumed>) = 3 [pid 5155] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5151] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5157] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5156] chdir("./file2" [pid 5155] <... futex resumed>) = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5151] <... futex resumed>) = 1 [pid 5150] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] <... futex resumed>) = 0 [pid 5157] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5156] <... chdir resumed>) = 0 [pid 5155] renameat2(5, "./file2", 4, "./file1", 0 [pid 5154] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5150] <... futex resumed>) = 1 [pid 5148] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5156] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5155] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5156] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] <... futex resumed>) = 0 [pid 5148] <... futex resumed>) = 0 [pid 5147] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5158 attached [pid 5156] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5147] <... futex resumed>) = 0 [pid 5155] <... futex resumed>) = 0 [pid 5152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5150] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5147] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5155] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5152] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] renameat2(5, "./file2", 4, "./file1", 0 [pid 5150] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5155] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5154] close(4 [pid 5152] <... futex resumed>) = 0 [pid 5151] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5150] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] <... close resumed>) = 0 [pid 5152] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5151] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... futex resumed>) = 1 [pid 5147] <... futex resumed>) = 0 [pid 5155] <... futex resumed>) = 0 [pid 5152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5151] <... futex resumed>) = 1 [pid 5150] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] <... futex resumed>) = 0 [pid 5147] exit_group(0 [pid 5155] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5152] exit_group(0 [pid 5151] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5150] <... futex resumed>) = ? [pid 5148] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... exit_group resumed>) = ? [pid 5158] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5157] <... clone3 resumed> => {parent_tid=[5158]}, 88) = 5158 [pid 5156] <... futex resumed>) = 1 [pid 5155] <... futex resumed>) = ? [pid 5153] <... futex resumed>) = 0 [pid 5152] <... exit_group resumed>) = ? [pid 5151] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5150] +++ exited with 0 +++ [pid 5148] <... futex resumed>) = 0 [pid 5147] +++ exited with 0 +++ [pid 5158] <... rseq resumed>) = 0 [pid 5157] rt_sigprocmask(SIG_SETMASK, [], [pid 5156] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5155] +++ exited with 0 +++ [pid 5153] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5152] +++ exited with 0 +++ [pid 5151] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5158] set_robust_list(0x7f6db63839a0, 24 [pid 5157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5153] <... futex resumed>) = 0 [pid 5151] <... futex resumed>) = 0 [pid 5158] <... set_robust_list resumed>) = 0 [pid 5157] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5151] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5158] rt_sigprocmask(SIG_SETMASK, [], [pid 5157] <... futex resumed>) = 0 [pid 5156] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5154] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] exit_group(0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5158] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5156] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] <... futex resumed>) = 1 [pid 5151] <... futex resumed>) = ? [pid 5149] <... futex resumed>) = 0 [pid 5148] <... exit_group resumed>) = ? [pid 5051] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] memfd_create("syzkaller", 0 [pid 5156] <... futex resumed>) = 1 [pid 5154] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] <... futex resumed>) = 0 [pid 5151] +++ exited with 0 +++ [pid 5149] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] +++ exited with 0 +++ [pid 5053] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5153] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5158] <... memfd_create resumed>) = 3 [pid 5153] <... futex resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5051] <... openat resumed>) = 3 [pid 5158] <... mmap resumed>) = 0x7f6dade00000 [pid 5156] memfd_create("syzkaller", 0 [pid 5154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5149] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(3, "", [pid 5156] <... memfd_create resumed>) = 4 [pid 5154] openat(AT_FDCWD, ".", O_RDONLY [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5154] <... openat resumed>) = 4 [pid 5053] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5156] <... mmap resumed>) = 0x7f6dade00000 [pid 5154] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... openat resumed>) = 3 [pid 5051] getdents64(3, [pid 5053] newfstatat(3, "", [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5154] <... futex resumed>) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] openat(AT_FDCWD, ".", O_RDONLY [pid 5149] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] getdents64(3, [pid 5052] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] <... openat resumed>) = 5 [pid 5149] <... futex resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5156] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5154] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5154] <... futex resumed>) = 0 [pid 5149] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5052] <... openat resumed>) = 3 [pid 5051] unlink("./7/binderfs" [pid 5154] renameat2(5, "./file2", 4, "./file1", 0 [pid 5149] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5154] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] unlink("./7/binderfs" [pid 5052] newfstatat(3, "", [pid 5051] <... unlink resumed>) = 0 [pid 5156] <... write resumed>) = 524288 [pid 5154] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] <... futex resumed>) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5053] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, [pid 5154] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5149] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5154] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5149] <... futex resumed>) = 0 [pid 5052] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5154] <... futex resumed>) = 0 [pid 5149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5154] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] exit_group(0 [pid 5154] <... futex resumed>) = ? [pid 5149] <... exit_group resumed>) = ? [pid 5154] +++ exited with 0 +++ [pid 5149] +++ exited with 0 +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=3 /* 0.03 s */} --- [pid 5156] munmap(0x7f6dade00000, 138412032) = 0 [pid 5052] unlink("./7/binderfs" [pid 5055] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5156] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5055] getdents64(3, [pid 5158] <... write resumed>) = 524288 [pid 5156] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... unlink resumed>) = 0 [pid 5156] close(4 [pid 5055] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5158] munmap(0x7f6dade00000, 138412032 [pid 5055] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./7/binderfs" [pid 5156] <... close resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5158] <... munmap resumed>) = 0 [pid 5055] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5158] ioctl(4, LOOP_SET_FD, 3 [pid 5156] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... umount2 resumed>) = 0 [pid 5156] <... futex resumed>) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5156] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./7/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5153] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] getdents64(4, [pid 5158] <... ioctl resumed>) = 0 [pid 5156] <... futex resumed>) = 0 [pid 5153] <... futex resumed>) = 1 [pid 5052] <... umount2 resumed>) = 0 [pid 5158] close(3 [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... close resumed>) = 0 [pid 5156] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] <... umount2 resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5158] close(4 [pid 5156] <... openat resumed>) = 4 [pid 5051] getdents64(4, [pid 5158] <... close resumed>) = 0 [pid 5156] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5156] <... futex resumed>) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(4 [pid 5158] mkdir("./file2", 0777 [pid 5156] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] <... close resumed>) = 0 [pid 5156] openat(AT_FDCWD, ".", O_RDONLY [pid 5153] <... futex resumed>) = 0 [pid 5051] rmdir("./7/file2" [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... mkdir resumed>) = 0 [pid 5156] <... openat resumed>) = 5 [pid 5051] <... rmdir resumed>) = 0 [pid 5156] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] getdents64(3, [pid 5156] <... futex resumed>) = 1 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5156] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] close(3 [pid 5153] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./7/file2", [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5153] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] newfstatat(AT_FDCWD, "./7/file2", [pid 5051] rmdir("./7" [pid 5156] <... futex resumed>) = 0 [pid 5153] <... futex resumed>) = 1 [pid 5055] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5156] renameat2(5, "./file2", 4, "./file1", 0 [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5156] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5156] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5156] <... futex resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5052] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] mkdir("./8", 0777 [pid 5156] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5055] getdents64(4, [pid 5051] <... mkdir resumed>) = 0 [ 83.399924][ T5158] loop3: detected capacity change from 0 to 1024 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] newfstatat(4, "", [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] getdents64(4, [pid 5055] close(4 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] <... close resumed>) = 0 [pid 5052] getdents64(4, [pid 5055] rmdir("./7/file2" [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5055] <... rmdir resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5052] close(4 [pid 5051] close(3 [pid 5055] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] rmdir("./7/file2" [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] close(3 [pid 5052] <... rmdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5055] rmdir("./7" [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5052] close(3) = 0 ./strace-static-x86_64: Process 5159 attached [pid 5052] rmdir("./7" [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5159 [pid 5159] set_robust_list(0x555556b376a0, 24 [pid 5052] <... rmdir resumed>) = 0 [pid 5159] <... set_robust_list resumed>) = 0 [pid 5158] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5153] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] mkdir("./8", 0777 [pid 5159] chdir("./8" [pid 5055] <... mkdir resumed>) = 0 [pid 5156] <... futex resumed>) = 0 [pid 5153] <... futex resumed>) = 1 [pid 5156] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT) = -1 EFAULT (Bad address) [pid 5156] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5159] <... chdir resumed>) = 0 [pid 5156] <... futex resumed>) = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5156] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] mkdir("./8", 0777 [pid 5159] <... prctl resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5052] <... mkdir resumed>) = 0 [pid 5159] setpgid(0, 0 [pid 5053] newfstatat(AT_FDCWD, "./7/file2", [pid 5153] exit_group(0 [pid 5159] <... setpgid resumed>) = 0 [pid 5156] <... futex resumed>) = ? [pid 5153] <... exit_group resumed>) = ? [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5156] +++ exited with 0 +++ [pid 5055] <... ioctl resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] close(3 [pid 5159] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] +++ exited with 0 +++ [pid 5053] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5159] write(3, "1000", 4 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5160 attached [pid 5159] <... write resumed>) = 4 [pid 5053] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5160] set_robust_list(0x555556b376a0, 24 [pid 5159] close(3 [pid 5053] <... openat resumed>) = 4 [pid 5160] <... set_robust_list resumed>) = 0 [pid 5159] <... close resumed>) = 0 [pid 5056] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] chdir("./8" [pid 5053] newfstatat(4, "", [pid 5160] <... chdir resumed>) = 0 [pid 5159] symlink("/dev/binderfs", "./binderfs" [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5160 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5159] <... symlink resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5160] <... prctl resumed>) = 0 [pid 5053] getdents64(4, [pid 5160] setpgid(0, 0 [pid 5159] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5160] <... setpgid resumed>) = 0 [pid 5159] <... futex resumed>) = 0 [pid 5158] <... mount resumed>) = 0 [pid 5053] getdents64(4, [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5159] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5158] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4 [pid 5160] <... openat resumed>) = 3 [pid 5159] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5158] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... close resumed>) = 0 [pid 5158] chdir("./file2" [pid 5053] rmdir("./7/file2" [pid 5056] <... openat resumed>) = 3 [pid 5158] <... chdir resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5053] <... rmdir resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5159] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5159] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5160] write(3, "1000", 4 [pid 5159] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5160] <... write resumed>) = 4 [pid 5159] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5160] close(3) = 0 [pid 5159] <... clone3 resumed> => {parent_tid=[5161]}, 88) = 5161 [pid 5160] symlink("/dev/binderfs", "./binderfs" [pid 5159] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5161 attached [pid 5160] <... symlink resumed>) = 0 [pid 5159] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5158] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, [pid 5158] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5159] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] <... futex resumed>) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5161] <... rseq resumed>) = 0 [pid 5159] <... futex resumed>) = 0 [pid 5158] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5157] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] close(3 [pid 5161] set_robust_list(0x7f6db63839a0, 24 [pid 5159] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5161] <... set_robust_list resumed>) = 0 [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] rt_sigprocmask(SIG_SETMASK, [], [pid 5053] <... close resumed>) = 0 [pid 5161] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5160] <... futex resumed>) = 0 [pid 5158] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5157] <... futex resumed>) = 0 [pid 5053] rmdir("./7" [pid 5161] memfd_create("syzkaller", 0 [pid 5158] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... rmdir resumed>) = 0 [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] mkdir("./8", 0777 [pid 5158] <... futex resumed>) = 0 [pid 5161] <... memfd_create resumed>) = 3 [pid 5160] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5160] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5161] <... mmap resumed>) = 0x7f6dade00000 [pid 5160] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5157] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... mkdir resumed>) = 0 [pid 5158] memfd_create("syzkaller", 0 [pid 5160] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5157] <... futex resumed>) = 0 [pid 5160] <... mprotect resumed>) = 0 [pid 5158] <... memfd_create resumed>) = 4 [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5160] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5160] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5160] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5158] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... openat resumed>) = 3 [pid 5158] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] getdents64(3, [pid 5053] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5162 attached [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5162] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5162] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5161] <... write resumed>) = 524288 [pid 5160] <... clone3 resumed> => {parent_tid=[5162]}, 88) = 5162 [pid 5056] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] rt_sigprocmask(SIG_SETMASK, [], [pid 5162] rt_sigprocmask(SIG_SETMASK, [], [pid 5160] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5162] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5160] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] memfd_create("syzkaller", 0 [pid 5160] <... futex resumed>) = 0 [pid 5162] <... memfd_create resumed>) = 3 [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... ioctl resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] unlink("./7/binderfs") = 0 [pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5052] close(3 [pid 5056] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] munmap(0x7f6dade00000, 138412032 [pid 5052] <... close resumed>) = 0 [pid 5161] <... munmap resumed>) = 0 [pid 5158] <... write resumed>) = 524288 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5163 attached , child_tidptr=0x555556b37690) = 5163 [pid 5163] set_robust_list(0x555556b376a0, 24 [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5158] munmap(0x7f6dade00000, 138412032 [pid 5163] <... set_robust_list resumed>) = 0 [pid 5161] <... openat resumed>) = 4 [pid 5158] <... munmap resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5161] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5163] chdir("./8" [pid 5162] <... write resumed>) = 524288 [pid 5161] ioctl(4, LOOP_CLR_FD [pid 5158] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... ioctl resumed>) = 0 [pid 5163] <... chdir resumed>) = 0 [pid 5161] <... ioctl resumed>) = 0 [pid 5158] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] close(3 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5158] close(4 [pid 5056] newfstatat(AT_FDCWD, "./7/file2", [pid 5163] <... prctl resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... close resumed>) = 0 [pid 5163] setpgid(0, 0 [pid 5056] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5163] <... setpgid resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5161] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5161] close(4) = 0 [pid 5163] <... openat resumed>) = 3 [pid 5161] close(3 [pid 5056] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5163] write(3, "1000", 4 [pid 5161] <... close resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5163] <... write resumed>) = 4 [pid 5162] munmap(0x7f6dade00000, 138412032 [pid 5056] newfstatat(4, "", [pid 5163] close(3 [pid 5162] <... munmap resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5163] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5163] symlink("/dev/binderfs", "./binderfs" [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5162] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] getdents64(4, [pid 5163] <... symlink resumed>) = 0 [pid 5161] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5164 ./strace-static-x86_64: Process 5164 attached [pid 5159] <... futex resumed>) = 0 [pid 5056] close(4 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] set_robust_list(0x555556b376a0, 24 [pid 5162] <... openat resumed>) = 4 [pid 5159] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5162] ioctl(4, LOOP_SET_FD, 3 [pid 5161] <... futex resumed>) = 0 [pid 5159] <... futex resumed>) = 1 [pid 5056] rmdir("./7/file2" [pid 5163] <... futex resumed>) = 0 [pid 5161] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5159] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... close resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5164] <... set_robust_list resumed>) = 0 [pid 5161] <... symlink resumed>) = 0 [pid 5056] getdents64(3, [pid 5164] chdir("./8" [pid 5161] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5164] <... chdir resumed>) = 0 [pid 5161] <... futex resumed>) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5056] close(3 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5161] memfd_create("syzkaller", 0 [pid 5159] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5164] <... prctl resumed>) = 0 [pid 5161] <... memfd_create resumed>) = 3 [pid 5159] <... futex resumed>) = 0 [pid 5056] rmdir("./7" [pid 5164] setpgid(0, 0 [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5159] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5164] <... setpgid resumed>) = 0 [pid 5161] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... rmdir resumed>) = 0 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5163] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5158] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] <... openat resumed>) = 3 [pid 5056] mkdir("./8", 0777 [pid 5164] write(3, "1000", 4 [pid 5163] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5158] <... futex resumed>) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5164] <... write resumed>) = 4 [pid 5163] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5158] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] close(3 [pid 5163] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5157] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5158] openat(AT_FDCWD, ".", O_RDONLY [pid 5164] <... close resumed>) = 0 [pid 5163] <... mmap resumed>) = 0x7f6db6363000 [pid 5162] <... ioctl resumed>) = 0 [pid 5158] <... openat resumed>) = 4 [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 3 [pid 5163] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5164] symlink("/dev/binderfs", "./binderfs" [pid 5163] <... mprotect resumed>) = 0 [pid 5162] close(3 [pid 5161] <... write resumed>) = 524288 [pid 5158] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5164] <... symlink resumed>) = 0 [pid 5162] <... close resumed>) = 0 [pid 5158] <... futex resumed>) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5158] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5162] close(4 [pid 5157] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... close resumed>) = 0 [pid 5157] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5162] mkdir("./file2", 0777 [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5162] <... mkdir resumed>) = 0 [pid 5164] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5162] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5164] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5164] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5158] <... futex resumed>) = 0 [pid 5164] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5163] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5161] munmap(0x7f6dade00000, 138412032 [ 83.652219][ T5162] loop4: detected capacity change from 0 to 1024 [pid 5158] openat(AT_FDCWD, ".", O_RDONLY [pid 5163] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5161] <... munmap resumed>) = 0 [pid 5158] <... openat resumed>) = 5 ./strace-static-x86_64: Process 5165 attached [pid 5164] <... clone3 resumed> => {parent_tid=[5165]}, 88) = 5165 [pid 5163] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5158] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5166 attached [pid 5165] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5164] rt_sigprocmask(SIG_SETMASK, [], [pid 5162] <... mount resumed>) = 0 [pid 5161] <... openat resumed>) = 4 [pid 5158] <... futex resumed>) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5166] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5165] <... rseq resumed>) = 0 [pid 5164] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5163] <... clone3 resumed> => {parent_tid=[5166]}, 88) = 5166 [pid 5161] ioctl(4, LOOP_SET_FD, 3 [pid 5158] renameat2(5, "./file2", 4, "./file1", 0 [pid 5157] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... rseq resumed>) = 0 [pid 5165] set_robust_list(0x7f6db63839a0, 24 [pid 5164] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5157] <... futex resumed>) = 0 [pid 5166] set_robust_list(0x7f6db63839a0, 24 [pid 5165] <... set_robust_list resumed>) = 0 [pid 5164] <... futex resumed>) = 0 [pid 5163] rt_sigprocmask(SIG_SETMASK, [], [pid 5161] <... ioctl resumed>) = 0 [pid 5158] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... ioctl resumed>) = 0 [pid 5166] <... set_robust_list resumed>) = 0 [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5163] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5161] close(3 [pid 5158] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5166] rt_sigprocmask(SIG_SETMASK, [], [pid 5165] rt_sigprocmask(SIG_SETMASK, [], [pid 5163] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... openat resumed>) = 3 [pid 5161] <... close resumed>) = 0 [pid 5158] <... futex resumed>) = 0 [pid 5157] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5163] <... futex resumed>) = 0 [pid 5162] chdir("./file2" [pid 5161] close(4 [pid 5158] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5157] <... futex resumed>) = 0 [pid 5166] memfd_create("syzkaller", 0 [pid 5165] memfd_create("syzkaller", 0 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5162] <... chdir resumed>) = 0 [pid 5161] <... close resumed>) = 0 [pid 5158] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5157] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(3 [pid 5166] <... memfd_create resumed>) = 3 [pid 5165] <... memfd_create resumed>) = 3 [pid 5162] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5161] mkdir("./bus", 0777 [pid 5158] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5162] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5161] <... mkdir resumed>) = 0 [pid 5158] <... futex resumed>) = 0 [pid 5157] exit_group(0 [pid 5056] <... close resumed>) = 0 [pid 5166] <... mmap resumed>) = 0x7f6dade00000 [pid 5165] <... mmap resumed>) = 0x7f6dade00000 [pid 5162] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... exit_group resumed>) = ? [ 83.727430][ T5161] loop0: detected capacity change from 0 to 1024 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5167 attached [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5162] <... futex resumed>) = 1 [pid 5161] mount("/dev/loop0", "./bus", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME, "force" [pid 5160] <... futex resumed>) = 0 [pid 5158] +++ exited with 0 +++ [pid 5157] +++ exited with 0 +++ [pid 5160] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5167] set_robust_list(0x555556b376a0, 24 [pid 5162] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5167] <... set_robust_list resumed>) = 0 [pid 5167] chdir("./8" [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5167 [pid 5162] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5167] <... chdir resumed>) = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5167] setpgid(0, 0 [pid 5162] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... setpgid resumed>) = 0 [pid 5162] <... futex resumed>) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5160] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5167] <... openat resumed>) = 3 [pid 5162] memfd_create("syzkaller", 0 [pid 5160] <... futex resumed>) = 0 [pid 5054] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5167] write(3, "1000", 4) = 4 [pid 5166] <... write resumed>) = 524288 [pid 5165] <... write resumed>) = 524288 [pid 5162] <... memfd_create resumed>) = 4 [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5167] close(3 [pid 5166] munmap(0x7f6dade00000, 138412032 [pid 5054] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5167] <... close resumed>) = 0 [pid 5167] symlink("/dev/binderfs", "./binderfs" [pid 5166] <... munmap resumed>) = 0 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] <... openat resumed>) = 3 [pid 5167] <... symlink resumed>) = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5162] <... mmap resumed>) = 0x7f6dade00000 [pid 5161] <... mount resumed>) = 0 [pid 5054] newfstatat(3, "", [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... openat resumed>) = 4 [pid 5162] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5161] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5166] ioctl(4, LOOP_SET_FD, 3 [pid 5161] <... openat resumed>) = 3 [pid 5054] getdents64(3, [pid 5161] chdir("./bus" [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5161] <... chdir resumed>) = 0 [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5161] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5165] munmap(0x7f6dade00000, 138412032 [pid 5161] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5165] <... munmap resumed>) = 0 [pid 5161] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5166] <... ioctl resumed>) = 0 [pid 5161] <... futex resumed>) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5054] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5167] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5166] close(3 [pid 5162] <... write resumed>) = 524288 [pid 5159] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5167] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5166] <... close resumed>) = 0 [pid 5165] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5161] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5167] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5166] close(4 [pid 5167] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5166] <... close resumed>) = 0 [pid 5161] <... openat resumed>) = 5 [pid 5159] <... futex resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5166] mkdir("./file2", 0777 [pid 5161] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... mmap resumed>) = 0x7f6db6363000 [pid 5159] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5161] <... futex resumed>) = 0 [pid 5159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5161] renameat2(5, "./file2", 4, "./file1", 0 [pid 5159] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5166] <... mkdir resumed>) = 0 [pid 5159] <... futex resumed>) = 0 [pid 5165] <... openat resumed>) = 4 [pid 5159] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5167] <... mprotect resumed>) = 0 [pid 5166] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5162] munmap(0x7f6dade00000, 138412032 [pid 5054] unlink("./7/binderfs") = 0 [pid 5162] <... munmap resumed>) = 0 [ 83.828162][ T5166] loop1: detected capacity change from 0 to 1024 [pid 5167] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5165] ioctl(4, LOOP_SET_FD, 3 [pid 5162] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5054] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5162] close(4 [ 83.886832][ T5165] loop2: detected capacity change from 0 to 1024 [ 83.897283][ T5161] [ 83.899651][ T5161] ====================================================== [ 83.906669][ T5161] WARNING: possible circular locking dependency detected [ 83.913682][ T5161] 6.7.0-syzkaller-12377-g9d1694dc91ce #0 Not tainted [ 83.920352][ T5161] ------------------------------------------------------ [ 83.927364][ T5161] syz-executor275/5161 is trying to acquire lock: [ 83.933771][ T5161] ffff888029d7a8f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_free+0xbb/0x4d0 [ 83.943375][ T5161] [ 83.943375][ T5161] but task is already holding lock: [ 83.950747][ T5161] ffff888079ada988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x2da/0xb40 [ 83.961896][ T5161] [ 83.961896][ T5161] which lock already depends on the new lock. [ 83.961896][ T5161] [ 83.972299][ T5161] [ 83.972299][ T5161] the existing dependency chain (in reverse order) is: [ 83.981310][ T5161] [ 83.981310][ T5161] -> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}: [ 83.990350][ T5161] lock_acquire+0x1e3/0x530 [ 83.995387][ T5161] __mutex_lock+0x136/0xd60 [ 84.000459][ T5161] hfsplus_get_block+0x383/0x14e0 [ 84.006007][ T5161] block_read_full_folio+0x422/0xe10 [ 84.011836][ T5161] filemap_read_folio+0x19c/0x780 [ 84.017393][ T5161] do_read_cache_folio+0x134/0x810 [ 84.023040][ T5161] do_read_cache_page+0x30/0x200 [ 84.028508][ T5161] hfsplus_block_allocate+0xee/0x8b0 [ 84.034320][ T5161] hfsplus_file_extend+0xade/0x1b70 [ 84.040050][ T5161] hfsplus_get_block+0x406/0x14e0 [ 84.045595][ T5161] __block_write_begin_int+0x50b/0x1a70 [ 84.051673][ T5161] block_write_begin+0x9b/0x1e0 [ 84.057081][ T5161] cont_write_begin+0x643/0x880 [ 84.062550][ T5161] hfsplus_write_begin+0x8a/0xd0 [ 84.068028][ T5161] page_symlink+0x2c5/0x4e0 [ 84.073062][ T5161] hfsplus_symlink+0xca/0x260 [ 84.078265][ T5161] vfs_symlink+0x12f/0x2a0 [ 84.083213][ T5161] do_symlinkat+0x222/0x3a0 [ 84.088253][ T5161] __x64_sys_symlink+0x7e/0x90 [ 84.093550][ T5161] do_syscall_64+0xf5/0x230 [ 84.098584][ T5161] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 84.105015][ T5161] [ 84.105015][ T5161] -> #0 (&sbi->alloc_mutex){+.+.}-{3:3}: [ 84.112864][ T5161] validate_chain+0x1909/0x5ab0 [ 84.118247][ T5161] __lock_acquire+0x1345/0x1fd0 [ 84.123628][ T5161] lock_acquire+0x1e3/0x530 [ 84.128661][ T5161] __mutex_lock+0x136/0xd60 [ 84.133697][ T5161] hfsplus_block_free+0xbb/0x4d0 [ 84.139163][ T5161] hfsplus_free_extents+0x17a/0xae0 [ 84.144884][ T5161] hfsplus_file_truncate+0x7d0/0xb40 [ 84.150694][ T5161] hfsplus_delete_inode+0x174/0x220 [ 84.156418][ T5161] hfsplus_unlink+0x512/0x790 [ 84.161622][ T5161] hfsplus_rename+0xc8/0x1c0 [ 84.166739][ T5161] vfs_rename+0xbd3/0xef0 [ 84.171597][ T5161] do_renameat2+0xd94/0x13f0 [ 84.176725][ T5161] __x64_sys_renameat2+0xd2/0xe0 [ 84.182200][ T5161] do_syscall_64+0xf5/0x230 [ 84.187231][ T5161] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 84.193656][ T5161] [ 84.193656][ T5161] other info that might help us debug this: [ 84.193656][ T5161] [ 84.203887][ T5161] Possible unsafe locking scenario: [ 84.203887][ T5161] [ 84.211333][ T5161] CPU0 CPU1 [ 84.216719][ T5161] ---- ---- [ 84.222085][ T5161] lock(&HFSPLUS_I(inode)->extents_lock); [ 84.227899][ T5161] lock(&sbi->alloc_mutex); [ 84.235013][ T5161] lock(&HFSPLUS_I(inode)->extents_lock); [ 84.243340][ T5161] lock(&sbi->alloc_mutex); [ 84.247934][ T5161] [ 84.247934][ T5161] *** DEADLOCK *** [ 84.247934][ T5161] [ 84.256075][ T5161] 6 locks held by syz-executor275/5161: [ 84.261621][ T5161] #0: ffff888029204420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 84.270786][ T5161] #1: ffff888079ad9740 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: do_renameat2+0x62c/0x13f0 [ 84.281272][ T5161] #2: ffff888079ada4c0 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: lock_two_nondirectories+0xe1/0x170 [ 84.292674][ T5161] #3: ffff888079adab80 (&sb->s_type->i_mutex_key#14/4){+.+.}-{3:3}, at: vfs_rename+0x69e/0xef0 [ 84.303175][ T5161] #4: ffff888029d7a998 (&sbi->vh_mutex){+.+.}-{3:3}, at: hfsplus_unlink+0x161/0x790 [ 84.312678][ T5161] #5: ffff888079ada988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x2da/0xb40 [ 84.324257][ T5161] [ 84.324257][ T5161] stack backtrace: [ 84.330141][ T5161] CPU: 1 PID: 5161 Comm: syz-executor275 Not tainted 6.7.0-syzkaller-12377-g9d1694dc91ce #0 [ 84.340207][ T5161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 84.350261][ T5161] Call Trace: [ 84.353548][ T5161] [ 84.356486][ T5161] dump_stack_lvl+0x1e7/0x2d0 [ 84.361266][ T5161] ? tcp_gro_dev_warn+0x260/0x260 [ 84.366302][ T5161] ? print_circular_bug+0x12b/0x1a0 [ 84.371515][ T5161] check_noncircular+0x366/0x490 [ 84.376469][ T5161] ? print_deadlock_bug+0x610/0x610 [ 84.381692][ T5161] ? lockdep_lock+0x123/0x2b0 [ 84.386385][ T5161] ? print_deadlock_bug+0x610/0x610 [ 84.391592][ T5161] ? _find_first_zero_bit+0xd4/0x100 [ 84.396885][ T5161] validate_chain+0x1909/0x5ab0 [ 84.401756][ T5161] ? reacquire_held_locks+0x690/0x690 [ 84.408203][ T5161] ? reacquire_held_locks+0x690/0x690 [ 84.413636][ T5161] ? mark_lock+0x9a/0x350 [ 84.417990][ T5161] __lock_acquire+0x1345/0x1fd0 [ 84.422868][ T5161] lock_acquire+0x1e3/0x530 [ 84.427385][ T5161] ? hfsplus_block_free+0xbb/0x4d0 [ 84.432509][ T5161] ? read_lock_is_recursive+0x20/0x20 [ 84.437888][ T5161] ? __might_sleep+0xe0/0xe0 [ 84.442495][ T5161] __mutex_lock+0x136/0xd60 [ 84.447035][ T5161] ? hfsplus_block_free+0xbb/0x4d0 [ 84.452178][ T5161] ? __lock_acquire+0x1fd0/0x1fd0 [ 84.457206][ T5161] ? rcu_is_watching+0x15/0xb0 [ 84.461982][ T5161] ? trace_contention_end+0x3c/0x100 [ 84.467273][ T5161] ? hfsplus_block_free+0xbb/0x4d0 [ 84.472394][ T5161] ? mutex_lock_nested+0x20/0x20 [ 84.477345][ T5161] ? __mutex_unlock_slowpath+0x21c/0x750 [ 84.483017][ T5161] ? mutex_lock_nested+0x20/0x20 [ 84.487969][ T5161] hfsplus_block_free+0xbb/0x4d0 [ 84.492917][ T5161] ? trace_kmalloc+0x1f/0xa0 [ 84.497528][ T5161] ? __kmalloc+0x24c/0x490 [ 84.501960][ T5161] hfsplus_free_extents+0x17a/0xae0 [ 84.507162][ T5161] hfsplus_file_truncate+0x7d0/0xb40 [ 84.512455][ T5161] ? hfsplus_add_extent+0x880/0x880 [ 84.517661][ T5161] ? hfsplus_unlink+0x161/0x790 [ 84.522518][ T5161] hfsplus_delete_inode+0x174/0x220 [ 84.527717][ T5161] hfsplus_unlink+0x512/0x790 [ 84.532402][ T5161] ? hfsplus_link+0x800/0x800 [ 84.537101][ T5161] ? clear_nonspinnable+0x60/0x60 [ 84.542142][ T5161] ? clear_nonspinnable+0x60/0x60 [ 84.547185][ T5161] hfsplus_rename+0xc8/0x1c0 [ 84.551788][ T5161] ? hfsplus_mknod+0x2a0/0x2a0 [ 84.556621][ T5161] vfs_rename+0xbd3/0xef0 [ 84.560973][ T5161] ? __ia32_sys_link+0x90/0x90 [ 84.565757][ T5161] ? security_path_rename+0x183/0x210 [ 84.571152][ T5161] do_renameat2+0xd94/0x13f0 [ 84.575783][ T5161] ? fsnotify_move+0x4f0/0x4f0 [ 84.580578][ T5161] ? __virt_addr_valid+0x3d1/0x480 [ 84.585747][ T5161] ? __check_object_size+0x4bb/0xa00 [ 84.591067][ T5161] ? getname_flags+0x1fd/0x4f0 [ 84.595846][ T5161] __x64_sys_renameat2+0xd2/0xe0 [ 84.600900][ T5161] do_syscall_64+0xf5/0x230 [ 84.605427][ T5161] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 84.611344][ T5161] RIP: 0033:0x7f6db63c6e89 [ 84.615767][ T5161] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [pid 5167] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5168]}, 88) = 5168 [pid 5167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5167] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... close resumed>) = 0 ./strace-static-x86_64: Process 5168 attached [pid 5167] <... futex resumed>) = 0 [pid 5165] <... ioctl resumed>) = 0 [pid 5162] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5165] close(3 [pid 5162] <... futex resumed>) = 1 [pid 5168] <... rseq resumed>) = 0 [pid 5165] <... close resumed>) = 0 [pid 5162] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5168] set_robust_list(0x7f6db63839a0, 24 [pid 5165] close(4 [pid 5168] <... set_robust_list resumed>) = 0 [pid 5165] <... close resumed>) = 0 [pid 5168] rt_sigprocmask(SIG_SETMASK, [], [pid 5165] mkdir("./file2", 0777 [pid 5168] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5165] <... mkdir resumed>) = 0 [pid 5168] memfd_create("syzkaller", 0 [pid 5165] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5168] <... memfd_create resumed>) = 3 [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5160] <... futex resumed>) = 0 [pid 5159] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5160] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] futex(0x7f6db644f6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5162] <... futex resumed>) = 0 [pid 5160] <... futex resumed>) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6342000 [pid 5168] <... write resumed>) = 524288 [pid 5165] <... mount resumed>) = 0 [pid 5162] openat(AT_FDCWD, ".", O_RDONLY [pid 5161] <... renameat2 resumed>) = 0 [pid 5159] mprotect(0x7f6db6343000, 131072, PROT_READ|PROT_WRITE [pid 5054] <... umount2 resumed>) = 0 [pid 5168] munmap(0x7f6dade00000, 138412032 [pid 5165] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5162] <... openat resumed>) = 4 [pid 5161] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] <... mprotect resumed>) = 0 [pid 5054] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5165] <... openat resumed>) = 3 [pid 5162] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] <... futex resumed>) = 0 [pid 5159] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5168] <... munmap resumed>) = 0 [pid 5165] chdir("./file2" [pid 5162] <... futex resumed>) = 1 [pid 5168] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5161] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5160] <... futex resumed>) = 0 [pid 5159] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5168] <... openat resumed>) = 4 [pid 5165] <... chdir resumed>) = 0 [ 84.635463][ T5161] RSP: 002b:00007f6db6383218 EFLAGS: 00000246 ORIG_RAX: 000000000000013c [ 84.643881][ T5161] RAX: ffffffffffffffda RBX: 00007f6db644f6c8 RCX: 00007f6db63c6e89 [ 84.651856][ T5161] RDX: 0000000000000004 RSI: 00000000200000c0 RDI: 0000000000000005 [ 84.659825][ T5161] RBP: 00007f6db644f6c0 R08: 0000000000000000 R09: 0000000000000000 [ 84.668081][ T5161] R10: 0000000020000180 R11: 0000000000000246 R12: 00007f6db641c168 [ 84.676051][ T5161] R13: 0032656c69662f2e R14: 0073756c70736668 R15: 0031656c69662f2e [ 84.684046][ T5161] [pid 5162] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5160] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6362990, parent_tid=0x7f6db6362990, exit_signal=0, stack=0x7f6db6342000, stack_size=0x20300, tls=0x7f6db63626c0} [pid 5054] newfstatat(AT_FDCWD, "./7/file2", [pid 5168] ioctl(4, LOOP_SET_FD, 3 [pid 5165] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5160] <... futex resumed>) = 0 [pid 5165] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5159] <... clone3 resumed> => {parent_tid=[5169]}, 88) = 5169 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5165] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] rt_sigprocmask(SIG_SETMASK, [], [pid 5165] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5159] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] umount2("./7/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5165] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] futex(0x7f6db644f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5164] <... futex resumed>) = 0 [pid 5159] <... futex resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5169 attached [pid 5165] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5159] futex(0x7f6db644f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5169] rseq(0x7f6db6362fe0, 0x20, 0, 0x53053053 [pid 5054] <... openat resumed>) = 4 [pid 5169] <... rseq resumed>) = 0 [pid 5054] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] getdents64(4, [pid 5169] set_robust_list(0x7f6db63629a0, 24 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5169] <... set_robust_list resumed>) = 0 [pid 5054] getdents64(4, [pid 5169] rt_sigprocmask(SIG_SETMASK, [], [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5169] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] close(4 [pid 5169] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5054] <... close resumed>) = 0 [pid 5169] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5168] <... ioctl resumed>) = 0 [pid 5162] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] rmdir("./7/file2" [pid 5165] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5169] futex(0x7f6db644f6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... openat resumed>) = 5 [pid 5054] <... rmdir resumed>) = 0 [pid 5169] <... futex resumed>) = 1 [pid 5165] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5162] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] <... futex resumed>) = 0 [pid 5054] getdents64(3, [pid 5169] futex(0x7f6db644f6d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5168] close(3 [pid 5166] <... mount resumed>) = 0 [pid 5165] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... futex resumed>) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5159] exit_group(0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5169] <... futex resumed>) = ? [pid 5168] <... close resumed>) = 0 [pid 5166] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5164] <... futex resumed>) = 0 [pid 5162] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] <... futex resumed>) = ? [pid 5160] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] <... exit_group resumed>) = ? [pid 5054] close(3 [pid 5169] +++ exited with 0 +++ [pid 5168] close(4 [pid 5166] <... openat resumed>) = 3 [pid 5165] memfd_create("syzkaller", 0 [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5161] +++ exited with 0 +++ [pid 5160] <... futex resumed>) = 0 [pid 5159] +++ exited with 0 +++ [pid 5054] <... close resumed>) = 0 [pid 5168] <... close resumed>) = 0 [pid 5166] chdir("./file2" [pid 5165] <... memfd_create resumed>) = 4 [pid 5162] renameat2(5, "./file2", 4, "./file1", 0 [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] rmdir("./7" [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5168] mkdir("./file2", 0777 [pid 5166] <... chdir resumed>) = 0 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5165] <... mmap resumed>) = 0x7f6dade00000 [pid 5162] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5054] mkdir("./8", 0777 [pid 5168] <... mkdir resumed>) = 0 [pid 5166] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5165] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5162] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... mkdir resumed>) = 0 [pid 5168] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5166] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] <... write resumed>) = 524288 [pid 5162] <... futex resumed>) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5160] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... futex resumed>) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5162] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5054] <... openat resumed>) = 3 [pid 5165] munmap(0x7f6dade00000, 138412032 [pid 5163] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] <... futex resumed>) = 0 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5166] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5165] <... munmap resumed>) = 0 [pid 5163] <... futex resumed>) = 0 [pid 5162] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5160] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 84.717990][ T5168] loop5: detected capacity change from 0 to 1024 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5165] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5168] <... mount resumed>) = 0 [pid 5166] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5162] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5166] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... futex resumed>) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5051] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] <... openat resumed>) = 3 [pid 5166] <... futex resumed>) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5162] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5160] exit_group(0 [pid 5168] chdir("./file2" [pid 5166] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... futex resumed>) = ? [pid 5160] <... exit_group resumed>) = ? [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5168] <... chdir resumed>) = 0 [pid 5166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5165] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] <... futex resumed>) = 0 [pid 5162] +++ exited with 0 +++ [pid 5160] +++ exited with 0 +++ [pid 5051] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5168] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5166] memfd_create("syzkaller", 0 [pid 5165] close(4 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5168] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] <... memfd_create resumed>) = 4 [pid 5165] <... close resumed>) = 0 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5051] <... openat resumed>) = 3 [pid 5168] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5168] <... futex resumed>) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5166] <... mmap resumed>) = 0x7f6dade00000 [pid 5168] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5167] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5167] <... futex resumed>) = 0 [pid 5055] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5166] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] unlink("./8/binderfs" [pid 5051] getdents64(3, [pid 5055] <... unlink resumed>) = 0 [pid 5055] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5051] <... getdents64 resumed>0x555556b38730 /* 5 entries */, 32768) = 376 [pid 5168] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = 0 [pid 5051] umount2("./8/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5165] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] <... futex resumed>) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5165] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = 0 [pid 5168] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./8/file2", [pid 5051] umount2("./8/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5167] <... futex resumed>) = 0 [pid 5165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5164] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5168] memfd_create("syzkaller", 0 [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5165] openat(AT_FDCWD, ".", O_RDONLY [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./8/bus", [pid 5168] <... memfd_create resumed>) = 4 [pid 5166] <... write resumed>) = 524288 [pid 5165] <... openat resumed>) = 4 [pid 5166] munmap(0x7f6dade00000, 138412032 [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5165] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... ioctl resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5168] <... mmap resumed>) = 0x7f6dade00000 [pid 5166] <... munmap resumed>) = 0 [pid 5165] <... futex resumed>) = 1 [pid 5055] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5165] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... openat resumed>) = 4 [pid 5055] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5164] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5166] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5164] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(4, [pid 5165] <... futex resumed>) = 0 [pid 5164] <... futex resumed>) = 1 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5166] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5165] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] close(4 [pid 5054] close(3 [pid 5051] umount2("./8/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5166] close(4 [pid 5165] <... openat resumed>) = 5 [pid 5055] <... close resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5166] <... close resumed>) = 0 [pid 5165] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./8/file2" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./8/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5165] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5165] renameat2(5, "./file2", 4, "./file1", 0 [pid 5164] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5051] <... openat resumed>) = 4 [pid 5164] <... futex resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5165] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5165] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3 [pid 5165] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5165] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./8" [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5165] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5055] mkdir("./9", 0777 [pid 5051] getdents64(4, [pid 5166] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5164] <... futex resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5165] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... futex resumed>) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5163] <... futex resumed>) = 0 [pid 5166] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5165] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5163] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(4./strace-static-x86_64: Process 5170 attached [pid 5166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5164] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5163] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5170 [pid 5051] <... close resumed>) = 0 [pid 5170] set_robust_list(0x555556b376a0, 24 [pid 5168] <... write resumed>) = 524288 [pid 5166] openat(AT_FDCWD, ".", O_RDONLY [pid 5164] exit_group(0 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5051] rmdir("./8/bus" [pid 5166] <... openat resumed>) = 4 [pid 5165] <... futex resumed>) = ? [pid 5164] <... exit_group resumed>) = ? [pid 5166] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] +++ exited with 0 +++ [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5051] <... rmdir resumed>) = 0 [pid 5163] <... futex resumed>) = 0 [pid 5051] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5163] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5166] <... futex resumed>) = 1 [pid 5051] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5170] <... set_robust_list resumed>) = 0 [pid 5168] munmap(0x7f6dade00000, 138412032 [pid 5164] +++ exited with 0 +++ [pid 5166] openat(AT_FDCWD, ".", O_RDONLY [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5166] <... openat resumed>) = 5 [pid 5170] chdir("./8" [pid 5168] <... munmap resumed>) = 0 [pid 5166] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5166] <... futex resumed>) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5168] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] renameat2(5, "./file2", 4, "./file1", 0 [pid 5163] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] unlink("./8/binderfs" [pid 5170] <... chdir resumed>) = 0 [pid 5168] close(4 [pid 5166] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5163] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5168] <... close resumed>) = 0 [pid 5166] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... prctl resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5051] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5166] <... futex resumed>) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5051] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5170] setpgid(0, 0 [pid 5166] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5163] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... setpgid resumed>) = 0 [pid 5166] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5163] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=7, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5163] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... futex resumed>) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5053] getdents64(3, [pid 5051] unlink("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5168] <... futex resumed>) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5166] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] exit_group(0 [pid 5168] openat(AT_FDCWD, ".", O_RDONLY [pid 5167] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... futex resumed>) = ? [pid 5163] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5170] <... openat resumed>) = 3 [pid 5168] <... openat resumed>) = 4 [pid 5167] <... futex resumed>) = 0 [pid 5166] +++ exited with 0 +++ [pid 5053] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... unlink resumed>) = 0 [pid 5170] write(3, "1000", 4 [pid 5168] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5170] <... write resumed>) = 4 [pid 5168] <... futex resumed>) = 0 [pid 5167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5170] close(3 [pid 5168] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] close(3 [pid 5170] <... close resumed>) = 0 [pid 5168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5167] <... futex resumed>) = 0 [pid 5163] +++ exited with 0 +++ [pid 5053] unlink("./8/binderfs" [pid 5051] <... close resumed>) = 0 [pid 5170] symlink("/dev/binderfs", "./binderfs" [pid 5168] openat(AT_FDCWD, ".", O_RDONLY [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... unlink resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=82 /* 0.82 s */} --- [pid 5170] <... symlink resumed>) = 0 [pid 5168] <... openat resumed>) = 5 [pid 5055] <... ioctl resumed>) = 0 [pid 5053] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] rmdir("./8" [pid 5168] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] <... futex resumed>) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5170] <... futex resumed>) = 0 [pid 5168] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5167] <... futex resumed>) = 0 [pid 5052] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5171 attached [pid 5170] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5168] renameat2(5, "./file2", 4, "./file1", 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5171] set_robust_list(0x555556b376a0, 24 [pid 5170] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5168] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5171 [pid 5052] <... openat resumed>) = 3 [pid 5051] mkdir("./9", 0777 [pid 5170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5052] newfstatat(3, "", [pid 5171] <... set_robust_list resumed>) = 0 [pid 5170] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5168] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] getdents64(3, [pid 5168] <... futex resumed>) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5171] chdir("./9" [pid 5170] <... mmap resumed>) = 0x7f6db6363000 [pid 5168] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... mkdir resumed>) = 0 [pid 5171] <... chdir resumed>) = 0 [pid 5170] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5167] <... futex resumed>) = 0 [pid 5053] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5170] <... mprotect resumed>) = 0 [pid 5168] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5167] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5171] <... prctl resumed>) = 0 [pid 5170] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5168] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./8/binderfs" [pid 5171] setpgid(0, 0 [pid 5170] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5171] <... setpgid resumed>) = 0 [pid 5170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5052] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5167] exit_group(0) = ? ./strace-static-x86_64: Process 5172 attached [pid 5171] <... openat resumed>) = 3 [pid 5172] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5170] <... clone3 resumed> => {parent_tid=[5172]}, 88) = 5172 [pid 5170] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5172] <... rseq resumed>) = 0 [pid 5170] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] set_robust_list(0x7f6db63839a0, 24 [pid 5170] <... futex resumed>) = 0 [pid 5172] <... set_robust_list resumed>) = 0 [pid 5171] write(3, "1000", 4 [pid 5053] newfstatat(AT_FDCWD, "./8/file2", [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5172] rt_sigprocmask(SIG_SETMASK, [], [pid 5171] <... write resumed>) = 4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5172] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5172] memfd_create("syzkaller", 0 [pid 5171] close(3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5172] <... memfd_create resumed>) = 3 [pid 5171] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] newfstatat(AT_FDCWD, "./8/file2", [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5171] symlink("/dev/binderfs", "./binderfs" [pid 5172] <... mmap resumed>) = 0x7f6dade00000 [pid 5168] +++ exited with 0 +++ [pid 5167] +++ exited with 0 +++ [pid 5171] <... symlink resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5053] newfstatat(4, "", [pid 5052] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5171] <... futex resumed>) = 0 [pid 5053] getdents64(4, [pid 5052] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] <... openat resumed>) = 4 [pid 5053] getdents64(4, [pid 5052] newfstatat(4, "", [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] close(4 [pid 5052] getdents64(4, [pid 5053] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] rmdir("./8/file2" [pid 5052] getdents64(4, [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] getdents64(3, [pid 5052] close(4 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] <... close resumed>) = 0 [pid 5053] close(3 [pid 5052] rmdir("./8/file2" [pid 5053] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5053] rmdir("./8" [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] close(3) = 0 [pid 5052] rmdir("./8") = 0 [pid 5052] mkdir("./9", 0777) = 0 [pid 5053] mkdir("./9", 0777 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5171] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5056] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... mkdir resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5171] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5171] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] <... openat resumed>) = 3 [pid 5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] newfstatat(3, "", [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5171] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5056] getdents64(3, [pid 5171] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5171] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5056] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5171] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5053] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5173 attached [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5173] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5171] <... clone3 resumed> => {parent_tid=[5173]}, 88) = 5173 [pid 5056] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5173] <... rseq resumed>) = 0 [pid 5171] rt_sigprocmask(SIG_SETMASK, [], [pid 5173] set_robust_list(0x7f6db63839a0, 24 [pid 5171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5173] <... set_robust_list resumed>) = 0 [pid 5056] unlink("./8/binderfs" [pid 5173] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] <... unlink resumed>) = 0 [pid 5173] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5171] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] <... write resumed>) = 524288 [pid 5056] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5173] memfd_create("syzkaller", 0 [pid 5172] munmap(0x7f6dade00000, 138412032 [pid 5171] <... futex resumed>) = 0 [pid 5173] <... memfd_create resumed>) = 3 [pid 5172] <... munmap resumed>) = 0 [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5172] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5173] <... mmap resumed>) = 0x7f6dade00000 [pid 5172] <... openat resumed>) = 4 [pid 5172] ioctl(4, LOOP_SET_FD, 3 [pid 5056] <... umount2 resumed>) = 0 [pid 5172] <... ioctl resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5056] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5172] close(3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5172] <... close resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./8/file2", [pid 5172] close(4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5172] <... close resumed>) = 0 [pid 5173] <... write resumed>) = 524288 [pid 5172] mkdir("./file2", 0777 [pid 5056] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5173] munmap(0x7f6dade00000, 138412032 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5173] <... munmap resumed>) = 0 [pid 5172] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5174 attached ) = 4 [pid 5056] newfstatat(4, "", [pid 5174] set_robust_list(0x555556b376a0, 24 [pid 5173] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5174 [pid 5174] <... set_robust_list resumed>) = 0 [pid 5173] <... openat resumed>) = 4 [pid 5174] chdir("./9" [pid 5056] getdents64(4, [pid 5174] <... chdir resumed>) = 0 [pid 5173] ioctl(4, LOOP_SET_FD, 3 [pid 5172] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] <... ioctl resumed>) = 0 [pid 5174] <... prctl resumed>) = 0 [pid 5174] setpgid(0, 0 [pid 5056] getdents64(4, [pid 5174] <... setpgid resumed>) = 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [ 84.957337][ T5172] loop3: detected capacity change from 0 to 1024 [pid 5053] close(3 [pid 5174] <... openat resumed>) = 3 [pid 5056] close(4 [pid 5053] <... close resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./8/file2" [pid 5052] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5175 attached [pid 5174] write(3, "1000", 4 [pid 5056] <... rmdir resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5175 [pid 5175] set_robust_list(0x555556b376a0, 24 [pid 5174] <... write resumed>) = 4 [pid 5056] getdents64(3, [pid 5052] close(3 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5175] <... set_robust_list resumed>) = 0 [pid 5174] close(3 [pid 5052] <... close resumed>) = 0 [pid 5175] chdir("./9" [pid 5174] <... close resumed>) = 0 [pid 5175] <... chdir resumed>) = 0 [pid 5174] symlink("/dev/binderfs", "./binderfs" [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5174] <... symlink resumed>) = 0 [pid 5172] <... mount resumed>) = 0 [pid 5175] <... prctl resumed>) = 0 [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5175] setpgid(0, 0 [pid 5174] <... futex resumed>) = 0 [pid 5172] <... openat resumed>) = 3 [pid 5175] <... setpgid resumed>) = 0 [pid 5174] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5174] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5172] chdir("./file2" [pid 5175] <... openat resumed>) = 3 [pid 5174] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5175] write(3, "1000", 4 [pid 5174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5173] <... ioctl resumed>) = 0 [pid 5172] <... chdir resumed>) = 0 [pid 5175] <... write resumed>) = 4 [pid 5174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5173] close(3 [pid 5172] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5175] close(3 [pid 5174] <... mmap resumed>) = 0x7f6db6363000 [pid 5173] <... close resumed>) = 0 [pid 5172] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5175] <... close resumed>) = 0 [pid 5174] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5173] close(4 [pid 5172] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] symlink("/dev/binderfs", "./binderfs" [pid 5174] <... mprotect resumed>) = 0 [pid 5173] <... close resumed>) = 0 [pid 5175] <... symlink resumed>) = 0 [pid 5174] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5173] mkdir("./file2", 0777 [pid 5174] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5173] <... mkdir resumed>) = 0 [pid 5174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5173] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... clone3 resumed> => {parent_tid=[5176]}, 88) = 5176 [pid 5172] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5176 attached [pid 5175] <... futex resumed>) = 0 [pid 5174] rt_sigprocmask(SIG_SETMASK, [], [pid 5172] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5170] <... futex resumed>) = 0 [pid 5176] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5175] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5172] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5170] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(3 [pid 5174] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5170] <... futex resumed>) = 0 [pid 5174] <... futex resumed>) = 0 [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... close resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5177 ./strace-static-x86_64: Process 5177 attached [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5176] <... rseq resumed>) = 0 [pid 5175] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5172] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5177] set_robust_list(0x555556b376a0, 24) = 0 [pid 5056] rmdir("./8" [pid 5176] set_robust_list(0x7f6db63839a0, 24 [pid 5175] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5172] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] chdir("./9" [pid 5176] <... set_robust_list resumed>) = 0 [pid 5175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5172] <... futex resumed>) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5176] rt_sigprocmask(SIG_SETMASK, [], [pid 5175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5172] memfd_create("syzkaller", 0 [pid 5170] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5177] <... chdir resumed>) = 0 [pid 5176] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5175] <... mmap resumed>) = 0x7f6db6363000 [pid 5170] <... futex resumed>) = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] memfd_create("syzkaller", 0 [pid 5175] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] mkdir("./9", 0777 [pid 5177] <... prctl resumed>) = 0 [pid 5176] <... memfd_create resumed>) = 3 [pid 5175] <... mprotect resumed>) = 0 [pid 5172] <... memfd_create resumed>) = 4 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5175] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5177] setpgid(0, 0 [pid 5176] <... mmap resumed>) = 0x7f6dade00000 [pid 5175] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5172] <... mmap resumed>) = 0x7f6dade00000 [pid 5177] <... setpgid resumed>) = 0 [pid 5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5172] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... mkdir resumed>) = 0 [ 84.998552][ T5173] loop4: detected capacity change from 0 to 1024 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5177] <... openat resumed>) = 3 [pid 5177] write(3, "1000", 4 [pid 5056] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5177] <... write resumed>) = 4 [pid 5175] <... clone3 resumed> => {parent_tid=[5178]}, 88) = 5178 [pid 5177] close(3 [pid 5175] rt_sigprocmask(SIG_SETMASK, [], [pid 5177] <... close resumed>) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5173] <... mount resumed>) = 0 [pid 5172] <... write resumed>) = 524288 [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5177] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5178 attached [pid 5175] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5177] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5175] <... futex resumed>) = 0 [pid 5173] <... openat resumed>) = 3 [pid 5178] <... rseq resumed>) = 0 [pid 5177] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5173] chdir("./file2" [pid 5178] set_robust_list(0x7f6db63839a0, 24 [pid 5177] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5173] <... chdir resumed>) = 0 [pid 5177] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5173] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5178] <... set_robust_list resumed>) = 0 [pid 5178] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5177] <... mmap resumed>) = 0x7f6db6363000 [pid 5178] memfd_create("syzkaller", 0 [pid 5177] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5173] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] <... memfd_create resumed>) = 3 [pid 5177] <... mprotect resumed>) = 0 [pid 5173] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5177] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5176] <... write resumed>) = 524288 [pid 5173] <... futex resumed>) = 1 [pid 5177] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5173] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] <... futex resumed>) = 0 [pid 5172] munmap(0x7f6dade00000, 138412032 [pid 5171] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... futex resumed>) = 0 [pid 5172] <... munmap resumed>) = 0 [pid 5171] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5179 attached [pid 5176] munmap(0x7f6dade00000, 138412032 [pid 5173] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5179] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5176] <... munmap resumed>) = 0 [pid 5177] <... clone3 resumed> => {parent_tid=[5179]}, 88) = 5179 [pid 5179] <... rseq resumed>) = 0 [pid 5177] rt_sigprocmask(SIG_SETMASK, [], [pid 5172] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5179] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5179] rt_sigprocmask(SIG_SETMASK, [], [pid 5177] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5177] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5177] <... futex resumed>) = 0 [pid 5179] memfd_create("syzkaller", 0 [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5173] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5173] <... futex resumed>) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5179] <... memfd_create resumed>) = 3 [pid 5176] <... openat resumed>) = 4 [pid 5173] memfd_create("syzkaller", 0 [pid 5171] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5173] <... memfd_create resumed>) = 4 [pid 5171] <... futex resumed>) = 0 [pid 5179] <... mmap resumed>) = 0x7f6dade00000 [pid 5176] ioctl(4, LOOP_SET_FD, 3 [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5172] close(4 [pid 5178] <... write resumed>) = 524288 [pid 5173] <... mmap resumed>) = 0x7f6dade00000 [pid 5172] <... close resumed>) = 0 [pid 5178] munmap(0x7f6dade00000, 138412032) = 0 [pid 5178] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5173] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5178] <... openat resumed>) = 4 [pid 5178] ioctl(4, LOOP_SET_FD, 3 [pid 5173] <... write resumed>) = 524288 [pid 5172] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5056] <... ioctl resumed>) = 0 [pid 5179] <... write resumed>) = 524288 [pid 5172] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5170] <... futex resumed>) = 0 [pid 5170] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5170] <... futex resumed>) = 0 [pid 5172] openat(AT_FDCWD, ".", O_RDONLY [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... openat resumed>) = 4 [pid 5172] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5170] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] openat(AT_FDCWD, ".", O_RDONLY) = 5 [pid 5172] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... ioctl resumed>) = 0 [pid 5172] <... futex resumed>) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5170] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] close(3 [pid 5172] renameat2(5, "./file2", 4, "./file1", 0 [pid 5170] <... futex resumed>) = 0 [pid 5056] close(3 [pid 5176] <... close resumed>) = 0 [pid 5172] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5179] munmap(0x7f6dade00000, 138412032 [pid 5176] close(4 [pid 5173] munmap(0x7f6dade00000, 138412032 [pid 5172] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5173] <... munmap resumed>) = 0 [pid 5172] <... futex resumed>) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5170] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... close resumed>) = 0 [pid 5176] mkdir("./file2", 0777 [pid 5173] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5172] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5176] <... mkdir resumed>) = 0 [pid 5173] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5172] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5172] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5170] exit_group(0) = ? [pid 5173] close(4 [pid 5179] <... munmap resumed>) = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 85.091631][ T5176] loop0: detected capacity change from 0 to 1024 [ 85.115314][ T5178] loop2: detected capacity change from 0 to 1024 [pid 5179] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5180 attached [pid 5173] <... close resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5180 [pid 5176] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5172] +++ exited with 0 +++ [pid 5170] +++ exited with 0 +++ [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5180] set_robust_list(0x555556b376a0, 24 [pid 5178] <... ioctl resumed>) = 0 [pid 5178] close(3) = 0 [pid 5173] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] close(4 [pid 5173] <... futex resumed>) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5178] <... close resumed>) = 0 [pid 5173] openat(AT_FDCWD, ".", O_RDONLY [pid 5171] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] mkdir("./file2", 0777 [pid 5173] <... openat resumed>) = 4 [pid 5171] <... futex resumed>) = 0 [pid 5178] <... mkdir resumed>) = 0 [pid 5178] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5173] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] <... futex resumed>) = 0 [pid 5171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5173] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... futex resumed>) = 0 [pid 5171] <... futex resumed>) = 1 [pid 5173] openat(AT_FDCWD, ".", O_RDONLY [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] <... openat resumed>) = 5 [pid 5173] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5173] renameat2(5, "./file2", 4, "./file1", 0 [pid 5180] <... set_robust_list resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] chdir("./9" [pid 5173] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5173] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5173] <... futex resumed>) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5173] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5171] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5171] <... futex resumed>) = 0 [pid 5173] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5171] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] <... futex resumed>) = 0 [pid 5171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5173] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] exit_group(0 [pid 5173] <... futex resumed>) = ? [pid 5171] <... exit_group resumed>) = ? [pid 5173] +++ exited with 0 +++ [pid 5180] <... chdir resumed>) = 0 [pid 5171] +++ exited with 0 +++ [pid 5054] <... openat resumed>) = 3 [pid 5179] <... ioctl resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5179] close(3 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5054] newfstatat(3, "", [pid 5179] <... close resumed>) = 0 [pid 5179] close(4 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5180] <... prctl resumed>) = 0 [pid 5179] <... close resumed>) = 0 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5180] setpgid(0, 0) = 0 [pid 5179] mkdir("./file2", 0777 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5179] <... mkdir resumed>) = 0 [pid 5055] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] getdents64(3, [pid 5055] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5180] <... openat resumed>) = 3 [pid 5055] getdents64(3, [pid 5180] write(3, "1000", 4 [pid 5179] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5178] <... mount resumed>) = 0 [pid 5054] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] <... write resumed>) = 4 [ 85.137535][ T5179] loop1: detected capacity change from 0 to 1024 [pid 5178] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5180] close(3 [pid 5178] <... openat resumed>) = 3 [pid 5055] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] chdir("./file2" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] <... chdir resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5180] <... close resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5180] symlink("/dev/binderfs", "./binderfs" [pid 5178] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5178] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] unlink("./9/binderfs" [pid 5054] unlink("./8/binderfs" [pid 5180] <... symlink resumed>) = 0 [pid 5178] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... unlink resumed>) = 0 [pid 5054] <... unlink resumed>) = 0 [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... futex resumed>) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5055] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5178] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5175] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5180] <... futex resumed>) = 0 [pid 5175] <... futex resumed>) = 0 [pid 5180] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5179] <... mount resumed>) = 0 [pid 5178] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5176] <... mount resumed>) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5178] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5175] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5175] <... futex resumed>) = 0 [pid 5180] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5179] <... openat resumed>) = 3 [pid 5176] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5178] memfd_create("syzkaller", 0 [pid 5176] <... openat resumed>) = 3 [pid 5179] chdir("./file2" [pid 5178] <... memfd_create resumed>) = 4 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5179] <... chdir resumed>) = 0 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5176] chdir("./file2" [pid 5179] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5178] <... mmap resumed>) = 0x7f6dade00000 [pid 5176] <... chdir resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./8/file2", [pid 5180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5179] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5179] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5178] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5177] <... futex resumed>) = 0 [pid 5054] umount2("./8/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] <... mmap resumed>) = 0x7f6db6363000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5177] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5054] newfstatat(4, "", [pid 5177] <... futex resumed>) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5176] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] <... futex resumed>) = 0 [pid 5174] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5176] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5180] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5055] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] getdents64(4, [pid 5180] <... mprotect resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5179] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5176] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] newfstatat(AT_FDCWD, "./9/file2", [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5179] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] getdents64(4, [pid 5180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5055] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5176] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... futex resumed>) = 0 [pid 5174] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5181 attached [pid 5176] <... futex resumed>) = 1 [pid 5181] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5176] memfd_create("syzkaller", 0 [pid 5181] <... rseq resumed>) = 0 [pid 5176] <... memfd_create resumed>) = 4 [pid 5181] set_robust_list(0x7f6db63839a0, 24 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5181] <... set_robust_list resumed>) = 0 [pid 5179] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... mmap resumed>) = 0x7f6dade00000 [pid 5181] rt_sigprocmask(SIG_SETMASK, [], [pid 5180] <... clone3 resumed> => {parent_tid=[5181]}, 88) = 5181 [pid 5179] <... futex resumed>) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5176] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] close(4 [pid 5177] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5177] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5181] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5180] rt_sigprocmask(SIG_SETMASK, [], [pid 5179] memfd_create("syzkaller", 0 [pid 5178] <... write resumed>) = 524288 [pid 5055] <... openat resumed>) = 4 [pid 5054] rmdir("./8/file2" [pid 5181] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] <... memfd_create resumed>) = 4 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5179] <... mmap resumed>) = 0x7f6dade00000 [pid 5054] <... rmdir resumed>) = 0 [pid 5180] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(4, "", [pid 5054] getdents64(3, [pid 5181] <... futex resumed>) = 0 [pid 5180] <... futex resumed>) = 1 [pid 5181] memfd_create("syzkaller", 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5181] <... memfd_create resumed>) = 3 [pid 5055] getdents64(4, [pid 5054] close(3 [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] <... close resumed>) = 0 [pid 5181] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] rmdir("./8" [pid 5178] munmap(0x7f6dade00000, 138412032 [pid 5176] <... write resumed>) = 524288 [pid 5055] getdents64(4, [pid 5054] <... rmdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] mkdir("./9", 0777 [pid 5055] close(4 [pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5179] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5178] <... munmap resumed>) = 0 [pid 5176] munmap(0x7f6dade00000, 138412032 [pid 5055] <... close resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5055] rmdir("./9/file2") = 0 [pid 5176] <... munmap resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5178] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5178] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] close(3 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5176] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] rmdir("./9") = 0 [pid 5181] <... write resumed>) = 524288 [pid 5179] <... write resumed>) = 524288 [pid 5178] close(4 [pid 5176] close(4 [pid 5055] mkdir("./10", 0777 [pid 5181] munmap(0x7f6dade00000, 138412032 [pid 5179] munmap(0x7f6dade00000, 138412032 [pid 5178] <... close resumed>) = 0 [pid 5181] <... munmap resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5179] <... munmap resumed>) = 0 [pid 5178] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... close resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5181] <... openat resumed>) = 4 [pid 5179] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5178] <... futex resumed>) = 1 [pid 5176] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... futex resumed>) = 0 [pid 5181] ioctl(4, LOOP_SET_FD, 3 [pid 5179] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] openat(AT_FDCWD, ".", O_RDONLY [pid 5176] <... futex resumed>) = 1 [pid 5175] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5175] <... futex resumed>) = 0 [pid 5174] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... futex resumed>) = 0 [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5179] close(4 [pid 5181] <... ioctl resumed>) = 0 [pid 5178] <... openat resumed>) = 4 [pid 5176] openat(AT_FDCWD, ".", O_RDONLY [pid 5181] close(3 [pid 5178] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... close resumed>) = 0 [pid 5178] <... futex resumed>) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5175] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] close(4 [pid 5175] <... futex resumed>) = 0 [pid 5181] <... close resumed>) = 0 [pid 5179] <... close resumed>) = 0 [pid 5178] openat(AT_FDCWD, ".", O_RDONLY [pid 5176] <... openat resumed>) = 4 [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5179] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5179] <... futex resumed>) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5176] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] openat(AT_FDCWD, ".", O_RDONLY [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5181] mkdir("./file2", 0777 [pid 5178] <... openat resumed>) = 5 [pid 5181] <... mkdir resumed>) = 0 [pid 5179] <... openat resumed>) = 4 [pid 5178] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... futex resumed>) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5181] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5179] <... futex resumed>) = 1 [pid 5178] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] <... futex resumed>) = 0 [pid 5176] <... futex resumed>) = 0 [pid 5175] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... futex resumed>) = 1 [pid 5178] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5177] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] openat(AT_FDCWD, ".", O_RDONLY [pid 5175] <... futex resumed>) = 0 [pid 5178] renameat2(5, "./file2", 4, "./file1", 0 [pid 5177] <... futex resumed>) = 0 [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5179] openat(AT_FDCWD, ".", O_RDONLY [pid 5178] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... openat resumed>) = 5 [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... futex resumed>) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5181] <... mount resumed>) = 0 [pid 5179] <... openat resumed>) = 5 [pid 5178] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5176] <... futex resumed>) = 1 [pid 5175] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... futex resumed>) = 0 [pid 5181] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5178] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5175] <... futex resumed>) = 0 [pid 5181] <... openat resumed>) = 3 [pid 5178] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5175] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5181] chdir("./file2" [pid 5178] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5181] <... chdir resumed>) = 0 [pid 5178] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5178] <... futex resumed>) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5181] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] exit_group(0 [pid 5181] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... futex resumed>) = ? [pid 5175] <... exit_group resumed>) = ? [pid 5181] <... futex resumed>) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5179] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] +++ exited with 0 +++ [pid 5176] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] <... futex resumed>) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5174] <... futex resumed>) = 0 [pid 5180] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] renameat2(5, "./file2", 4, "./file1", 0 [pid 5177] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] renameat2(5, "./file2", 4, "./file1", 0 [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5181] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5180] <... futex resumed>) = 0 [pid 5175] +++ exited with 0 +++ [pid 5176] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5179] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5177] <... futex resumed>) = 0 [pid 5176] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5179] <... futex resumed>) = 0 [pid 5177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5176] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5174] <... futex resumed>) = 0 [pid 5181] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5177] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5174] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5179] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5177] <... futex resumed>) = 0 [pid 5176] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5053] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5176] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5054] close(3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5181] <... futex resumed>) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5176] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5181] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5180] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... openat resumed>) = 3 [pid 5181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5180] <... futex resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5181] memfd_create("syzkaller", 0 [pid 5179] <... futex resumed>) = 0 [pid 5177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5176] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] exit_group(0 [pid 5055] <... ioctl resumed>) = 0 [pid 5179] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] <... exit_group resumed>) = ? [pid 5176] <... futex resumed>) = ? [pid 5177] exit_group(0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5182 [pid 5053] getdents64(3, ./strace-static-x86_64: Process 5182 attached [pid 5182] set_robust_list(0x555556b376a0, 24 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5182] <... set_robust_list resumed>) = 0 [pid 5053] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] chdir("./9" [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5181] <... memfd_create resumed>) = 4 [pid 5053] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5176] +++ exited with 0 +++ [pid 5174] +++ exited with 0 +++ [pid 5179] <... futex resumed>) = ? [pid 5177] <... exit_group resumed>) = ? [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5181] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] unlink("./9/binderfs" [pid 5181] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5179] +++ exited with 0 +++ [pid 5177] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5182] <... chdir resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5182] <... prctl resumed>) = 0 [ 85.274847][ T5181] loop5: detected capacity change from 0 to 1024 [pid 5051] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5182] setpgid(0, 0 [pid 5055] close(3 [pid 5052] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(3, "", [pid 5182] <... setpgid resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... openat resumed>) = 3 [pid 5051] getdents64(3, [pid 5182] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] write(3, "1000", 4 [pid 5052] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5182] <... write resumed>) = 4 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5182] close(3 [pid 5181] <... write resumed>) = 524288 [pid 5052] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5182] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] unlink("./9/binderfs" [pid 5182] symlink("/dev/binderfs", "./binderfs" [pid 5052] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5051] <... unlink resumed>) = 0 [pid 5182] <... symlink resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] unlink("./9/binderfs") = 0 [pid 5052] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5182] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5182] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5183 ./strace-static-x86_64: Process 5183 attached [pid 5181] munmap(0x7f6dade00000, 138412032 [pid 5183] set_robust_list(0x555556b376a0, 24 [pid 5181] <... munmap resumed>) = 0 [pid 5183] <... set_robust_list resumed>) = 0 [pid 5182] <... mprotect resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5183] chdir("./10" [pid 5181] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5183] <... chdir resumed>) = 0 [pid 5181] close(4 [pid 5053] <... umount2 resumed>) = 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] <... close resumed>) = 0 [pid 5183] setpgid(0, 0 [pid 5182] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5053] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5183] <... setpgid resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5182] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5053] newfstatat(AT_FDCWD, "./9/file2", [pid 5182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5183] <... openat resumed>) = 3 [pid 5182] <... clone3 resumed> => {parent_tid=[5184]}, 88) = 5184 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5183] write(3, "1000", 4 [pid 5182] rt_sigprocmask(SIG_SETMASK, [], [pid 5053] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5183] <... write resumed>) = 4 [pid 5182] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5183] close(3./strace-static-x86_64: Process 5184 attached [pid 5182] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(4, "", [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5184] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5183] <... close resumed>) = 0 [pid 5182] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(4, [pid 5183] symlink("/dev/binderfs", "./binderfs" [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5184] <... rseq resumed>) = 0 [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5181] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] getdents64(4, [pid 5184] set_robust_list(0x7f6db63839a0, 24 [pid 5181] <... futex resumed>) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5184] <... set_robust_list resumed>) = 0 [pid 5183] <... symlink resumed>) = 0 [pid 5181] openat(AT_FDCWD, ".", O_RDONLY [pid 5180] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5184] rt_sigprocmask(SIG_SETMASK, [], [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... openat resumed>) = 4 [pid 5180] <... futex resumed>) = 0 [pid 5053] close(4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5184] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5181] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... close resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./9/file2", [pid 5184] memfd_create("syzkaller", 0 [pid 5181] <... futex resumed>) = 0 [pid 5180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] rmdir("./9/file2" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5184] <... memfd_create resumed>) = 3 [pid 5183] <... futex resumed>) = 0 [pid 5181] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5180] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5183] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5180] <... futex resumed>) = 0 [pid 5053] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5184] <... mmap resumed>) = 0x7f6dade00000 [pid 5183] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5181] openat(AT_FDCWD, ".", O_RDONLY [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(AT_FDCWD, "./9/file2", [pid 5183] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5181] <... openat resumed>) = 5 [pid 5053] close(3 [pid 5052] <... openat resumed>) = 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5183] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5181] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... close resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5051] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5181] <... futex resumed>) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5053] rmdir("./9" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5183] <... mmap resumed>) = 0x7f6db6363000 [pid 5180] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5183] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5180] <... futex resumed>) = 0 [pid 5052] getdents64(4, [pid 5051] <... openat resumed>) = 4 [pid 5183] <... mprotect resumed>) = 0 [pid 5181] renameat2(5, "./file2", 4, "./file1", 0 [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... rmdir resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5183] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5053] mkdir("./10", 0777 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5183] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5051] getdents64(4, [pid 5183] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5052] getdents64(4, [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5185 attached [pid 5053] <... mkdir resumed>) = 0 [pid 5181] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(4, [pid 5185] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5183] <... clone3 resumed> => {parent_tid=[5185]}, 88) = 5185 [pid 5181] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] close(4 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5185] <... rseq resumed>) = 0 [pid 5183] rt_sigprocmask(SIG_SETMASK, [], [pid 5052] <... close resumed>) = 0 [pid 5051] close(4 [pid 5185] set_robust_list(0x7f6db63839a0, 24 [pid 5183] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5181] <... futex resumed>) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5052] rmdir("./9/file2" [pid 5051] <... close resumed>) = 0 [pid 5185] <... set_robust_list resumed>) = 0 [pid 5183] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5180] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... openat resumed>) = 3 [pid 5051] rmdir("./9/file2" [pid 5185] rt_sigprocmask(SIG_SETMASK, [], [pid 5183] <... futex resumed>) = 0 [pid 5181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5180] <... futex resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5185] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5181] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5180] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] getdents64(3, [pid 5185] memfd_create("syzkaller", 0 [pid 5181] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5052] getdents64(3, [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5185] <... memfd_create resumed>) = 3 [pid 5181] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(3 [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5181] <... futex resumed>) = 1 [pid 5185] <... mmap resumed>) = 0x7f6dade00000 [pid 5181] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5180] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5052] close(3 [pid 5180] exit_group(0 [pid 5052] <... close resumed>) = 0 [pid 5180] <... exit_group resumed>) = ? [pid 5051] rmdir("./9" [pid 5184] <... write resumed>) = 524288 [pid 5181] <... futex resumed>) = ? [pid 5052] rmdir("./9" [pid 5051] <... rmdir resumed>) = 0 [pid 5051] mkdir("./10", 0777 [pid 5185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5184] munmap(0x7f6dade00000, 138412032 [pid 5181] +++ exited with 0 +++ [pid 5180] +++ exited with 0 +++ [pid 5052] <... rmdir resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5052] mkdir("./10", 0777 [pid 5056] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5185] <... write resumed>) = 524288 [pid 5184] <... munmap resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5185] munmap(0x7f6dade00000, 138412032 [pid 5184] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5185] <... munmap resumed>) = 0 [pid 5184] <... openat resumed>) = 4 [pid 5056] getdents64(3, [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5185] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5184] ioctl(4, LOOP_SET_FD, 3 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5185] <... openat resumed>) = 4 [pid 5184] <... ioctl resumed>) = 0 [pid 5056] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5185] ioctl(4, LOOP_SET_FD, 3 [pid 5184] close(3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... ioctl resumed>) = 0 [pid 5184] <... close resumed>) = 0 [pid 5184] close(4 [pid 5185] <... ioctl resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] unlink("./9/binderfs") = 0 [pid 5056] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5186 ./strace-static-x86_64: Process 5186 attached [pid 5186] set_robust_list(0x555556b376a0, 24) = 0 [pid 5186] chdir("./10" [pid 5185] close(3 [pid 5186] <... chdir resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5185] close(4) = 0 [pid 5185] mkdir("./file2", 0777) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5186] setpgid(0, 0) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5185] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5184] <... close resumed>) = 0 [pid 5184] mkdir("./file2", 0777 [pid 5186] write(3, "1000", 4) = 4 [pid 5186] close(3) = 0 [pid 5186] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5184] <... mkdir resumed>) = 0 [pid 5184] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5186] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5186] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5186] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [ 85.448584][ T5184] loop3: detected capacity change from 0 to 1024 [ 85.461124][ T5185] loop4: detected capacity change from 0 to 1024 [pid 5186] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5187 attached => {parent_tid=[5187]}, 88) = 5187 [pid 5185] <... mount resumed>) = 0 [pid 5187] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5186] rt_sigprocmask(SIG_SETMASK, [], [pid 5185] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5184] <... mount resumed>) = 0 [pid 5187] <... rseq resumed>) = 0 [pid 5186] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5185] <... openat resumed>) = 3 [pid 5184] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5056] <... umount2 resumed>) = 0 [pid 5187] set_robust_list(0x7f6db63839a0, 24 [pid 5186] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] chdir("./file2" [pid 5184] <... openat resumed>) = 3 [pid 5056] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] <... set_robust_list resumed>) = 0 [pid 5186] <... futex resumed>) = 0 [pid 5185] <... chdir resumed>) = 0 [pid 5184] chdir("./file2" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] rt_sigprocmask(SIG_SETMASK, [], [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5185] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5184] <... chdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./9/file2", [pid 5052] <... ioctl resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5187] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5184] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5184] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5184] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] memfd_create("syzkaller", 0 [pid 5185] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] <... futex resumed>) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5185] <... futex resumed>) = 1 [pid 5182] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5184] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5183] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(4, "", [pid 5187] <... memfd_create resumed>) = 3 [pid 5185] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5184] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5183] <... futex resumed>) = 0 [pid 5182] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5184] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5052] close(3 [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5184] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] getdents64(4, [pid 5052] <... close resumed>) = 0 [pid 5051] close(3 [pid 5182] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... write resumed>) = 524288 [pid 5184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5182] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 [pid 5185] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5185] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] <... futex resumed>) = 0 [pid 5183] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = 0 [pid 5183] <... futex resumed>) = 1 [pid 5185] memfd_create("syzkaller", 0 [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5185] <... memfd_create resumed>) = 4 [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 ./strace-static-x86_64: Process 5188 attached [pid 5184] memfd_create("syzkaller", 0 [pid 5056] getdents64(4, [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5188 [pid 5188] set_robust_list(0x555556b376a0, 24 [pid 5185] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5184] <... memfd_create resumed>) = 4 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5189 [pid 5188] <... set_robust_list resumed>) = 0 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] close(4 [pid 5188] chdir("./10"./strace-static-x86_64: Process 5189 attached [pid 5184] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... close resumed>) = 0 [pid 5188] <... chdir resumed>) = 0 [pid 5056] rmdir("./9/file2" [pid 5189] set_robust_list(0x555556b376a0, 24) = 0 [pid 5189] chdir("./10") = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0 [pid 5187] munmap(0x7f6dade00000, 138412032) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5189] <... setpgid resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5187] <... openat resumed>) = 4 [pid 5189] <... openat resumed>) = 3 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5187] ioctl(4, LOOP_SET_FD, 3 [pid 5056] getdents64(3, [pid 5188] <... prctl resumed>) = 0 [pid 5188] setpgid(0, 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5189] write(3, "1000", 4 [pid 5188] <... setpgid resumed>) = 0 [pid 5184] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] close(3 [pid 5189] <... write resumed>) = 4 [pid 5056] <... close resumed>) = 0 [pid 5189] close(3 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5189] <... close resumed>) = 0 [pid 5189] symlink("/dev/binderfs", "./binderfs" [pid 5185] <... write resumed>) = 524288 [pid 5184] <... write resumed>) = 524288 [pid 5189] <... symlink resumed>) = 0 [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] <... openat resumed>) = 3 [pid 5056] rmdir("./9" [pid 5189] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5189] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5185] munmap(0x7f6dade00000, 138412032 [pid 5189] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5185] <... munmap resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5189] <... mmap resumed>) = 0x7f6db6363000 [pid 5185] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5189] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] mkdir("./10", 0777 [pid 5189] <... mprotect resumed>) = 0 [pid 5185] close(4 [pid 5189] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5188] write(3, "1000", 4 [pid 5185] <... close resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5189] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5188] <... write resumed>) = 4 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5189] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5188] close(3./strace-static-x86_64: Process 5190 attached ) = 0 [pid 5187] <... ioctl resumed>) = 0 [pid 5185] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] munmap(0x7f6dade00000, 138412032 [pid 5056] <... openat resumed>) = 3 [pid 5190] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5189] <... clone3 resumed> => {parent_tid=[5190]}, 88) = 5190 [pid 5188] symlink("/dev/binderfs", "./binderfs" [pid 5187] close(3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5190] <... rseq resumed>) = 0 [pid 5189] rt_sigprocmask(SIG_SETMASK, [], [pid 5190] set_robust_list(0x7f6db63839a0, 24 [pid 5189] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5190] <... set_robust_list resumed>) = 0 [pid 5189] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] rt_sigprocmask(SIG_SETMASK, [], [pid 5189] <... futex resumed>) = 0 [pid 5190] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5188] <... symlink resumed>) = 0 [pid 5190] memfd_create("syzkaller", 0 [pid 5187] <... close resumed>) = 0 [pid 5185] <... futex resumed>) = 1 [pid 5184] <... munmap resumed>) = 0 [pid 5183] <... futex resumed>) = 0 [pid 5190] <... memfd_create resumed>) = 3 [pid 5183] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] close(4 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5185] openat(AT_FDCWD, ".", O_RDONLY [pid 5183] <... futex resumed>) = 0 [pid 5190] <... mmap resumed>) = 0x7f6dade00000 [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... close resumed>) = 0 [pid 5185] <... openat resumed>) = 4 [pid 5184] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... futex resumed>) = 0 [pid 5187] mkdir("./file2", 0777 [pid 5185] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5188] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5187] <... mkdir resumed>) = 0 [pid 5185] <... futex resumed>) = 0 [pid 5184] close(4 [pid 5183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5188] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5185] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5184] <... close resumed>) = 0 [pid 5183] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5183] <... futex resumed>) = 0 [pid 5188] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5187] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5188] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [ 85.578000][ T5187] loop2: detected capacity change from 0 to 1024 [pid 5188] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5190] <... write resumed>) = 524288 [pid 5188] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5185] openat(AT_FDCWD, ".", O_RDONLY [pid 5188] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5185] <... openat resumed>) = 5 ./strace-static-x86_64: Process 5191 attached [pid 5190] munmap(0x7f6dade00000, 138412032 [pid 5185] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5190] <... munmap resumed>) = 0 [pid 5188] <... clone3 resumed> => {parent_tid=[5191]}, 88) = 5191 [pid 5185] <... futex resumed>) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5191] <... rseq resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5188] rt_sigprocmask(SIG_SETMASK, [], [pid 5185] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5184] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] set_robust_list(0x7f6db63839a0, 24 [pid 5190] <... openat resumed>) = 4 [pid 5183] <... futex resumed>) = 0 [pid 5182] <... futex resumed>) = 0 [pid 5191] <... set_robust_list resumed>) = 0 [pid 5190] ioctl(4, LOOP_SET_FD, 3 [pid 5184] <... futex resumed>) = 1 [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] rt_sigprocmask(SIG_SETMASK, [], [pid 5188] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5187] <... mount resumed>) = 0 [pid 5185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5184] openat(AT_FDCWD, ".", O_RDONLY [pid 5188] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5185] renameat2(5, "./file2", 4, "./file1", 0 [pid 5188] <... futex resumed>) = 0 [pid 5187] <... openat resumed>) = 3 [pid 5185] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5187] chdir("./file2" [pid 5185] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... chdir resumed>) = 0 [pid 5185] <... futex resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5185] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5187] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5186] <... futex resumed>) = 0 [pid 5184] <... openat resumed>) = 4 [pid 5182] <... futex resumed>) = 0 [pid 5183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5190] <... ioctl resumed>) = 0 [pid 5183] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] memfd_create("syzkaller", 0 [pid 5190] close(3 [pid 5185] <... futex resumed>) = 0 [pid 5187] <... futex resumed>) = 0 [pid 5186] <... futex resumed>) = 1 [pid 5184] <... futex resumed>) = 0 [pid 5183] <... futex resumed>) = 1 [pid 5182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] <... memfd_create resumed>) = 3 [pid 5190] <... close resumed>) = 0 [pid 5187] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5185] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5184] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5190] close(4 [pid 5185] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5182] <... futex resumed>) = 0 [pid 5191] <... mmap resumed>) = 0x7f6dade00000 [pid 5190] <... close resumed>) = 0 [pid 5185] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] openat(AT_FDCWD, ".", O_RDONLY [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... ioctl resumed>) = 0 [pid 5187] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5185] <... futex resumed>) = 1 [pid 5184] <... openat resumed>) = 5 [pid 5183] <... futex resumed>) = 0 [pid 5190] mkdir("./file2", 0777 [pid 5185] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] exit_group(0 [pid 5190] <... mkdir resumed>) = 0 [pid 5183] <... exit_group resumed>) = ? [pid 5187] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = ? [pid 5184] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5187] <... futex resumed>) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5185] +++ exited with 0 +++ [pid 5184] <... futex resumed>) = 1 [pid 5183] +++ exited with 0 +++ [pid 5182] <... futex resumed>) = 0 [pid 5187] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5186] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5182] <... futex resumed>) = 0 [pid 5187] memfd_create("syzkaller", 0 [pid 5186] <... futex resumed>) = 0 [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5187] <... memfd_create resumed>) = 4 [pid 5184] renameat2(5, "./file2", 4, "./file1", 0 [pid 5055] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5184] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5184] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... mmap resumed>) = 0x7f6dade00000 [pid 5184] <... futex resumed>) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5187] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5182] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5184] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5182] <... futex resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5184] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5182] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5184] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5184] <... futex resumed>) = 0 [pid 5182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5182] exit_group(0 [pid 5184] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] close(3 [pid 5055] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] <... exit_group resumed>) = ? [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5190] <... mount resumed>) = 0 [pid 5184] <... futex resumed>) = ? [pid 5190] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5055] unlink("./10/binderfs"./strace-static-x86_64: Process 5192 attached ) = 0 [pid 5055] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] set_robust_list(0x555556b376a0, 24 [pid 5190] <... openat resumed>) = 3 [pid 5190] chdir("./file2" [pid 5184] +++ exited with 0 +++ [pid 5182] +++ exited with 0 +++ [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5192 [pid 5190] <... chdir resumed>) = 0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5192] <... set_robust_list resumed>) = 0 [pid 5191] <... write resumed>) = 524288 [pid 5187] <... write resumed>) = 524288 [pid 5055] <... umount2 resumed>) = 0 [pid 5192] chdir("./10" [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5192] <... chdir resumed>) = 0 [pid 5190] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... prctl resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] setpgid(0, 0 [pid 5191] munmap(0x7f6dade00000, 138412032 [pid 5190] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] munmap(0x7f6dade00000, 138412032 [pid 5055] newfstatat(AT_FDCWD, "./10/file2", [pid 5054] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5192] <... setpgid resumed>) = 0 [pid 5191] <... munmap resumed>) = 0 [pid 5190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5189] <... futex resumed>) = 0 [ 85.644309][ T5190] loop0: detected capacity change from 0 to 1024 [pid 5187] <... munmap resumed>) = 0 [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5190] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5187] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5192] <... openat resumed>) = 3 [pid 5191] <... openat resumed>) = 4 [pid 5187] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] write(3, "1000", 4 [pid 5191] ioctl(4, LOOP_SET_FD, 3 [pid 5190] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5187] close(4 [pid 5055] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] newfstatat(3, "", [pid 5192] <... write resumed>) = 4 [pid 5190] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5190] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(3, [pid 5190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5190] memfd_create("syzkaller", 0) = 4 [pid 5055] <... openat resumed>) = 4 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5192] close(3 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(4, "", [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5190] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] getdents64(4, [pid 5192] symlink("/dev/binderfs", "./binderfs" [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] getdents64(4, [pid 5192] <... symlink resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5054] unlink("./9/binderfs" [pid 5055] <... close resumed>) = 0 [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./10/file2" [pid 5054] <... unlink resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5054] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] <... futex resumed>) = 0 [pid 5192] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5187] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3) = 0 [pid 5055] rmdir("./10" [pid 5187] <... futex resumed>) = 1 [pid 5187] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5186] <... futex resumed>) = 0 [pid 5187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5186] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5187] openat(AT_FDCWD, ".", O_RDONLY [pid 5186] <... futex resumed>) = 0 [pid 5187] <... openat resumed>) = 4 [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5187] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] mkdir("./11", 0777 [pid 5187] <... futex resumed>) = 0 [pid 5186] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] openat(AT_FDCWD, ".", O_RDONLY [pid 5186] <... futex resumed>) = 0 [pid 5187] <... openat resumed>) = 5 [pid 5192] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5187] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5192] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5187] <... futex resumed>) = 0 [pid 5192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5191] <... ioctl resumed>) = 0 [pid 5190] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5187] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5186] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... mkdir resumed>) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5192] <... mmap resumed>) = 0x7f6db6363000 [pid 5191] close(3 [pid 5187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5186] <... futex resumed>) = 0 [pid 5192] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5191] <... close resumed>) = 0 [pid 5187] renameat2(5, "./file2", 4, "./file1", 0 [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5191] close(4) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5192] <... mprotect resumed>) = 0 [pid 5191] mkdir("./file2", 0777 [pid 5187] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] <... openat resumed>) = 3 [pid 5192] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5191] <... mkdir resumed>) = 0 [pid 5187] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5191] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5187] <... futex resumed>) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5187] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5186] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(AT_FDCWD, "./9/file2", ./strace-static-x86_64: Process 5193 attached [pid 5190] <... write resumed>) = 524288 [pid 5187] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5186] <... futex resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5193] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5192] <... clone3 resumed> => {parent_tid=[5193]}, 88) = 5193 [pid 5187] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./9/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5186] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5193] <... rseq resumed>) = 0 [pid 5192] rt_sigprocmask(SIG_SETMASK, [], [pid 5187] <... futex resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] set_robust_list(0x7f6db63839a0, 24 [pid 5192] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5187] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5193] <... set_robust_list resumed>) = 0 [pid 5192] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] exit_group(0 [pid 5193] rt_sigprocmask(SIG_SETMASK, [], [pid 5192] <... futex resumed>) = 0 [pid 5191] <... mount resumed>) = 0 [pid 5187] <... futex resumed>) = ? [pid 5186] <... exit_group resumed>) = ? [pid 5054] <... openat resumed>) = 4 [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5187] +++ exited with 0 +++ [pid 5054] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5191] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5190] munmap(0x7f6dade00000, 138412032 [pid 5193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5191] <... openat resumed>) = 3 [pid 5054] getdents64(4, [pid 5191] chdir("./file2" [pid 5190] <... munmap resumed>) = 0 [pid 5193] memfd_create("syzkaller", 0 [pid 5191] <... chdir resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5191] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5190] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5191] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... memfd_create resumed>) = 3 [pid 5191] <... futex resumed>) = 1 [pid 5190] close(4 [pid 5188] <... futex resumed>) = 0 [pid 5054] getdents64(4, [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5191] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5188] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5188] <... futex resumed>) = 0 [pid 5054] close(4 [pid 5193] <... mmap resumed>) = 0x7f6dade00000 [pid 5191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] +++ exited with 0 +++ [pid 5054] <... close resumed>) = 0 [pid 5191] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5054] rmdir("./9/file2" [ 85.712785][ T5191] loop1: detected capacity change from 0 to 1024 [pid 5053] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5191] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5054] <... rmdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5191] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(3, [pid 5053] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5191] <... futex resumed>) = 1 [pid 5190] <... close resumed>) = 0 [pid 5188] <... futex resumed>) = 0 [pid 5054] close(3 [pid 5053] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5191] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5188] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5191] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5188] <... futex resumed>) = 1 [pid 5054] rmdir("./9" [pid 5053] unlink("./10/binderfs" [pid 5191] memfd_create("syzkaller", 0 [pid 5190] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... unlink resumed>) = 0 [pid 5191] <... memfd_create resumed>) = 4 [pid 5189] <... futex resumed>) = 0 [pid 5053] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5193] <... write resumed>) = 524288 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] close(3 [pid 5054] <... rmdir resumed>) = 0 [pid 5193] munmap(0x7f6dade00000, 138412032 [pid 5191] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... umount2 resumed>) = 0 [pid 5193] <... munmap resumed>) = 0 [pid 5190] <... openat resumed>) = 4 [pid 5055] <... close resumed>) = 0 [pid 5054] mkdir("./10", 0777 [pid 5190] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5194 attached [pid 5193] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5190] <... futex resumed>) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5194] set_robust_list(0x555556b376a0, 24 [pid 5190] openat(AT_FDCWD, ".", O_RDONLY [pid 5189] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5194 [pid 5193] <... openat resumed>) = 4 [pid 5190] <... openat resumed>) = 5 [pid 5189] <... futex resumed>) = 0 [pid 5190] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... set_robust_list resumed>) = 0 [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... futex resumed>) = 0 [pid 5189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5190] renameat2(5, "./file2", 4, "./file1", 0 [pid 5189] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] chdir("./11" [pid 5189] <... futex resumed>) = 0 [pid 5190] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] ioctl(4, LOOP_SET_FD, 3 [pid 5053] newfstatat(AT_FDCWD, "./10/file2", [pid 5194] <... chdir resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5190] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5053] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] <... prctl resumed>) = 0 [pid 5191] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5189] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] setpgid(0, 0 [pid 5193] <... ioctl resumed>) = 0 [pid 5191] <... write resumed>) = 524288 [pid 5190] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5054] <... openat resumed>) = 3 [pid 5053] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5194] <... setpgid resumed>) = 0 [pid 5190] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5053] <... openat resumed>) = 4 [pid 5190] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] newfstatat(4, "", [pid 5190] <... futex resumed>) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5190] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] exit_group(0 [pid 5053] getdents64(4, [pid 5194] <... openat resumed>) = 3 [pid 5190] <... futex resumed>) = ? [pid 5189] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5194] write(3, "1000", 4 [pid 5053] getdents64(4, [pid 5194] <... write resumed>) = 4 [pid 5193] close(3 [pid 5191] munmap(0x7f6dade00000, 138412032 [pid 5190] +++ exited with 0 +++ [pid 5189] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4 [pid 5194] close(3 [pid 5193] <... close resumed>) = 0 [pid 5191] <... munmap resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5194] <... close resumed>) = 0 [pid 5193] close(4 [pid 5191] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5053] rmdir("./10/file2" [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5194] symlink("/dev/binderfs", "./binderfs" [pid 5193] <... close resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] mkdir("./file2", 0777 [pid 5191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5191] close(4 [pid 5053] <... close resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5193] <... mkdir resumed>) = 0 [pid 5053] rmdir("./10" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] mkdir("./11", 0777 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5051] unlink("./10/binderfs" [pid 5194] <... symlink resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] <... futex resumed>) = 0 [pid 5194] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5194] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5194] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5191] <... close resumed>) = 0 [pid 5194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5051] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5195 attached [pid 5193] <... mount resumed>) = 0 [pid 5191] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5194] <... clone3 resumed> => {parent_tid=[5195]}, 88) = 5195 [pid 5193] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5195] <... rseq resumed>) = 0 [pid 5194] rt_sigprocmask(SIG_SETMASK, [], [pid 5193] <... openat resumed>) = 3 [pid 5191] <... futex resumed>) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5195] set_robust_list(0x7f6db63839a0, 24 [pid 5194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5193] chdir("./file2" [pid 5191] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5188] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... set_robust_list resumed>) = 0 [pid 5194] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... chdir resumed>) = 0 [pid 5191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] rt_sigprocmask(SIG_SETMASK, [], [pid 5194] <... futex resumed>) = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5191] openat(AT_FDCWD, ".", O_RDONLY [pid 5195] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5193] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5191] <... openat resumed>) = 4 [pid 5188] <... futex resumed>) = 0 [pid 5195] memfd_create("syzkaller", 0 [pid 5193] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... memfd_create resumed>) = 3 [pid 5193] <... futex resumed>) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5191] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5192] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... mmap resumed>) = 0x7f6dade00000 [ 85.808487][ T5193] loop5: detected capacity change from 0 to 1024 [pid 5193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5192] <... futex resumed>) = 0 [pid 5191] <... futex resumed>) = 0 [pid 5188] <... futex resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5193] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5191] openat(AT_FDCWD, ".", O_RDONLY [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] newfstatat(AT_FDCWD, "./10/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5191] <... openat resumed>) = 5 [pid 5191] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5191] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5188] <... futex resumed>) = 0 [pid 5051] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5193] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... futex resumed>) = 0 [pid 5191] <... futex resumed>) = 0 [pid 5188] <... futex resumed>) = 1 [pid 5051] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5191] renameat2(5, "./file2", 4, "./file1", 0 [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... openat resumed>) = 4 [pid 5191] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5191] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5191] <... futex resumed>) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5188] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5188] <... futex resumed>) = 0 [pid 5051] getdents64(4, [pid 5191] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5188] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... write resumed>) = 524288 [pid 5192] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... ioctl resumed>) = 0 [pid 5051] getdents64(4, [pid 5195] munmap(0x7f6dade00000, 138412032 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5191] <... futex resumed>) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5193] <... futex resumed>) = 0 [pid 5192] <... futex resumed>) = 1 [pid 5191] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] close(4 [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5188] exit_group(0 [pid 5051] <... close resumed>) = 0 [pid 5195] <... munmap resumed>) = 0 [pid 5193] memfd_create("syzkaller", 0 [pid 5191] <... futex resumed>) = ? [pid 5188] <... exit_group resumed>) = ? [pid 5054] close(3 [pid 5051] rmdir("./10/file2" [pid 5191] +++ exited with 0 +++ [pid 5195] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5193] <... memfd_create resumed>) = 4 [pid 5195] <... openat resumed>) = 4 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5195] ioctl(4, LOOP_SET_FD, 3 [pid 5193] <... mmap resumed>) = 0x7f6dade00000 [pid 5188] +++ exited with 0 +++ [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5196 attached [pid 5193] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5051] getdents64(3, [pid 5053] close(3 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] close(3 [pid 5196] set_robust_list(0x555556b376a0, 24 [pid 5053] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] rmdir("./10" [pid 5196] <... set_robust_list resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5196] chdir("./10" [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5196 [pid 5051] <... rmdir resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5197 [pid 5196] <... chdir resumed>) = 0 [pid 5052] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] mkdir("./11", 0777./strace-static-x86_64: Process 5197 attached [pid 5197] set_robust_list(0x555556b376a0, 24) = 0 [pid 5197] chdir("./11") = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5197] setpgid(0, 0) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5197] write(3, "1000", 4) = 4 [pid 5197] close(3) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... mkdir resumed>) = 0 [pid 5196] <... prctl resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5196] setpgid(0, 0 [pid 5052] <... openat resumed>) = 3 [pid 5196] <... setpgid resumed>) = 0 [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... openat resumed>) = 3 [pid 5197] <... futex resumed>) = 0 [pid 5197] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] newfstatat(3, "", [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5197] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5196] <... openat resumed>) = 3 [pid 5195] <... ioctl resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5197] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5196] write(3, "1000", 4 [pid 5195] close(3 [pid 5197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5195] <... close resumed>) = 0 [pid 5193] <... write resumed>) = 524288 [pid 5196] <... write resumed>) = 4 [pid 5197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5196] close(3 [pid 5195] close(4 [pid 5052] getdents64(3, [pid 5196] <... close resumed>) = 0 [pid 5195] <... close resumed>) = 0 [pid 5197] <... mmap resumed>) = 0x7f6db6363000 [pid 5195] mkdir("./file2", 0777 [pid 5197] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5193] munmap(0x7f6dade00000, 138412032 [pid 5197] <... mprotect resumed>) = 0 [pid 5196] symlink("/dev/binderfs", "./binderfs" [pid 5195] <... mkdir resumed>) = 0 [pid 5193] <... munmap resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5197] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5196] <... symlink resumed>) = 0 [pid 5195] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5052] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5198 attached [pid 5193] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5198] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5193] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5198] <... rseq resumed>) = 0 [pid 5193] close(4 [pid 5198] set_robust_list(0x7f6db63839a0, 24 [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5198] <... set_robust_list resumed>) = 0 [pid 5197] <... clone3 resumed> => {parent_tid=[5198]}, 88) = 5198 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5198] rt_sigprocmask(SIG_SETMASK, [], [pid 5197] rt_sigprocmask(SIG_SETMASK, [], [pid 5198] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5196] <... futex resumed>) = 0 [pid 5052] unlink("./10/binderfs" [pid 5198] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5197] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] <... futex resumed>) = 0 [pid 5197] <... futex resumed>) = 1 [pid 5198] memfd_create("syzkaller", 0 [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5198] <... memfd_create resumed>) = 3 [pid 5196] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5195] <... mount resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5195] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5052] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5195] <... openat resumed>) = 3 [pid 5198] <... mmap resumed>) = 0x7f6dade00000 [pid 5195] chdir("./file2" [pid 5198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5196] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5195] <... chdir resumed>) = 0 [pid 5193] <... close resumed>) = 0 [pid 5195] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5193] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5193] <... futex resumed>) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5193] openat(AT_FDCWD, ".", O_RDONLY [pid 5192] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... openat resumed>) = 4 [pid 5193] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = 0 [pid 5194] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... futex resumed>) = 1 [ 85.904531][ T5195] loop4: detected capacity change from 0 to 1024 [pid 5195] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5196] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5192] <... futex resumed>) = 1 [pid 5052] <... umount2 resumed>) = 0 [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5196] <... mprotect resumed>) = 0 [pid 5192] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5193] <... futex resumed>) = 0 [pid 5193] openat(AT_FDCWD, ".", O_RDONLY) = 5 [pid 5195] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... futex resumed>) = 1 [pid 5194] <... futex resumed>) = 0 [pid 5193] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5195] memfd_create("syzkaller", 0 [pid 5194] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... futex resumed>) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5194] <... futex resumed>) = 0 [pid 5193] renameat2(5, "./file2", 4, "./file1", 0 [pid 5192] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5193] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5192] <... futex resumed>) = 0 [pid 5193] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] newfstatat(AT_FDCWD, "./10/file2", [pid 5193] <... futex resumed>) = 0 [pid 5192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5193] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5192] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5193] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5192] <... futex resumed>) = 0 [pid 5198] <... write resumed>) = 524288 [pid 5196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5193] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5195] <... memfd_create resumed>) = 4 [pid 5193] <... futex resumed>) = 0 [pid 5192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5192] exit_group(0 [pid 5052] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] <... mmap resumed>) = 0x7f6dade00000 [pid 5193] <... futex resumed>) = ? [pid 5192] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5199 attached [pid 5196] <... clone3 resumed> => {parent_tid=[5199]}, 88) = 5199 [pid 5195] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5193] +++ exited with 0 +++ [pid 5192] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5198] munmap(0x7f6dade00000, 138412032) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5199] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5052] newfstatat(4, "", [pid 5199] <... rseq resumed>) = 0 [pid 5198] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5196] rt_sigprocmask(SIG_SETMASK, [], [pid 5195] <... write resumed>) = 524288 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5198] <... openat resumed>) = 4 [pid 5196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5199] set_robust_list(0x7f6db63839a0, 24 [pid 5198] ioctl(4, LOOP_SET_FD, 3 [pid 5196] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] getdents64(4, [pid 5199] <... set_robust_list resumed>) = 0 [pid 5196] <... futex resumed>) = 0 [pid 5056] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5199] rt_sigprocmask(SIG_SETMASK, [], [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5199] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5199] memfd_create("syzkaller", 0 [pid 5198] <... ioctl resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(4, [pid 5051] close(3 [pid 5199] <... memfd_create resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5199] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] getdents64(3, ./strace-static-x86_64: Process 5200 attached [pid 5195] munmap(0x7f6dade00000, 138412032 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... close resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5200 [pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5195] <... munmap resumed>) = 0 [pid 5052] rmdir("./10/file2" [pid 5195] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] <... rmdir resumed>) = 0 [pid 5195] close(4 [pid 5056] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, [pid 5195] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(3 [pid 5200] set_robust_list(0x555556b376a0, 24 [pid 5199] <... write resumed>) = 524288 [pid 5056] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5052] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] rmdir("./10" [pid 5198] close(3) = 0 [pid 5198] close(4) = 0 [pid 5198] mkdir("./file2", 0777 [pid 5200] <... set_robust_list resumed>) = 0 [pid 5199] munmap(0x7f6dade00000, 138412032 [pid 5198] <... mkdir resumed>) = 0 [pid 5195] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] unlink("./10/binderfs" [pid 5052] <... rmdir resumed>) = 0 [pid 5195] <... futex resumed>) = 1 [pid 5194] <... futex resumed>) = 0 [pid 5194] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] chdir("./11" [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... unlink resumed>) = 0 [pid 5052] mkdir("./11", 0777 [pid 5199] <... munmap resumed>) = 0 [pid 5200] <... chdir resumed>) = 0 [pid 5195] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5195] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5195] <... futex resumed>) = 1 [pid 5194] <... futex resumed>) = 0 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5199] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5194] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... mkdir resumed>) = 0 [pid 5200] <... prctl resumed>) = 0 [pid 5195] openat(AT_FDCWD, ".", O_RDONLY [pid 5194] <... futex resumed>) = 0 [ 85.987599][ T5198] loop2: detected capacity change from 0 to 1024 [pid 5200] setpgid(0, 0 [pid 5199] <... openat resumed>) = 4 [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5200] <... setpgid resumed>) = 0 [pid 5199] ioctl(4, LOOP_SET_FD, 3 [pid 5195] <... openat resumed>) = 5 [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5195] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5194] <... futex resumed>) = 0 [pid 5195] renameat2(5, "./file2", 4, "./file1", 0 [pid 5194] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5194] <... futex resumed>) = 0 [pid 5195] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... futex resumed>) = 0 [pid 5194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5194] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5194] <... futex resumed>) = 0 [pid 5195] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... futex resumed>) = 0 [pid 5194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5194] exit_group(0 [pid 5195] <... futex resumed>) = ? [pid 5194] <... exit_group resumed>) = ? [pid 5200] <... openat resumed>) = 3 [pid 5052] <... openat resumed>) = 3 [pid 5200] write(3, "1000", 4 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5200] <... write resumed>) = 4 [pid 5200] close(3) = 0 [pid 5195] +++ exited with 0 +++ [pid 5194] +++ exited with 0 +++ [pid 5200] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] <... mount resumed>) = 0 [pid 5200] <... futex resumed>) = 0 [pid 5199] <... ioctl resumed>) = 0 [pid 5198] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5056] <... umount2 resumed>) = 0 [pid 5200] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5055] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5199] close(3 [pid 5198] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5199] <... close resumed>) = 0 [pid 5198] chdir("./file2" [pid 5055] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5199] close(4 [pid 5198] <... chdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5198] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] newfstatat(AT_FDCWD, "./10/file2", [pid 5055] <... openat resumed>) = 3 [pid 5200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5199] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5200] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] rt_sigprocmask(SIG_BLOCK, ~[], [ 86.033291][ T5199] loop3: detected capacity change from 0 to 1024 [pid 5056] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5200] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5199] mkdir("./file2", 0777 [pid 5198] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] newfstatat(3, "", [pid 5052] <... ioctl resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5200] <... clone3 resumed> => {parent_tid=[5201]}, 88) = 5201 [pid 5200] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5200] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] close(4./strace-static-x86_64: Process 5201 attached ) = 0 [pid 5201] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5056] rmdir("./10/file2" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5201] <... rseq resumed>) = 0 [pid 5199] <... mkdir resumed>) = 0 [pid 5198] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5201] set_robust_list(0x7f6db63839a0, 24 [pid 5198] <... futex resumed>) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5201] <... set_robust_list resumed>) = 0 [pid 5197] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] rt_sigprocmask(SIG_SETMASK, [], [pid 5199] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5198] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5197] <... futex resumed>) = 0 [pid 5055] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5201] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5198] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5055] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5056] close(3) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5201] memfd_create("syzkaller", 0 [pid 5198] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] rmdir("./10" [pid 5055] unlink("./11/binderfs" [pid 5056] <... rmdir resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5202 [pid 5201] <... memfd_create resumed>) = 3 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] mkdir("./11", 0777 [pid 5201] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... mkdir resumed>) = 0 [pid 5201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5055] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5202 attached [pid 5198] <... futex resumed>) = 1 [pid 5055] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5198] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] <... futex resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5197] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] set_robust_list(0x555556b376a0, 24 [pid 5198] <... futex resumed>) = 0 [pid 5197] <... futex resumed>) = 1 [pid 5198] memfd_create("syzkaller", 0 [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5198] <... memfd_create resumed>) = 4 [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5202] <... set_robust_list resumed>) = 0 [pid 5199] <... mount resumed>) = 0 [pid 5198] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] <... umount2 resumed>) = 0 [pid 5199] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5198] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5199] <... openat resumed>) = 3 [pid 5199] chdir("./file2" [pid 5202] chdir("./11" [pid 5199] <... chdir resumed>) = 0 [pid 5202] <... chdir resumed>) = 0 [pid 5199] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5201] <... write resumed>) = 524288 [pid 5199] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5202] <... prctl resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./11/file2", [pid 5202] setpgid(0, 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5202] <... setpgid resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5201] munmap(0x7f6dade00000, 138412032 [pid 5055] <... openat resumed>) = 4 [pid 5201] <... munmap resumed>) = 0 [pid 5199] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5199] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5196] <... futex resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5196] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5196] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] getdents64(4, [pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5202] <... openat resumed>) = 3 [pid 5201] <... openat resumed>) = 4 [pid 5055] getdents64(4, [pid 5201] ioctl(4, LOOP_SET_FD, 3 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5201] <... ioctl resumed>) = 0 [pid 5198] <... write resumed>) = 524288 [pid 5055] <... close resumed>) = 0 [pid 5202] write(3, "1000", 4) = 4 [pid 5199] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5055] rmdir("./11/file2" [pid 5198] munmap(0x7f6dade00000, 138412032 [pid 5202] close(3 [pid 5201] close(3 [pid 5199] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5202] <... close resumed>) = 0 [pid 5201] <... close resumed>) = 0 [pid 5198] <... munmap resumed>) = 0 [pid 5202] symlink("/dev/binderfs", "./binderfs" [pid 5201] close(4 [pid 5202] <... symlink resumed>) = 0 [pid 5201] <... close resumed>) = 0 [pid 5199] <... futex resumed>) = 1 [pid 5198] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5196] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] mkdir("./file2", 0777 [pid 5199] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5198] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5196] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] <... futex resumed>) = 0 [pid 5199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5196] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5198] close(4 [pid 5199] memfd_create("syzkaller", 0 [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] close(3 [pid 5202] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5199] <... memfd_create resumed>) = 4 [pid 5055] <... close resumed>) = 0 [pid 5202] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5201] <... mkdir resumed>) = 0 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] rmdir("./11" [pid 5202] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5201] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5199] <... mmap resumed>) = 0x7f6dade00000 [pid 5202] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5202] <... mmap resumed>) = 0x7f6db6363000 [pid 5202] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5202] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5199] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5198] <... close resumed>) = 0 [pid 5056] <... ioctl resumed>) = 0 [pid 5055] mkdir("./12", 0777 [pid 5202] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5055] <... mkdir resumed>) = 0 [pid 5202] <... clone3 resumed> => {parent_tid=[5203]}, 88) = 5203 [pid 5202] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 5203 attached [pid 5202] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5202] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5201] <... mount resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5203] <... rseq resumed>) = 0 [pid 5199] <... write resumed>) = 524288 [pid 5198] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5203] set_robust_list(0x7f6db63839a0, 24 [pid 5201] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5203] <... set_robust_list resumed>) = 0 [pid 5201] <... openat resumed>) = 3 [pid 5203] rt_sigprocmask(SIG_SETMASK, [], [pid 5201] chdir("./file2" [pid 5203] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5201] <... chdir resumed>) = 0 [pid 5203] memfd_create("syzkaller", 0 [pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5198] <... futex resumed>) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5199] munmap(0x7f6dade00000, 138412032 [pid 5203] <... memfd_create resumed>) = 3 [pid 5201] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5198] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5201] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5197] <... futex resumed>) = 0 [pid 5203] <... mmap resumed>) = 0x7f6dade00000 [pid 5201] <... futex resumed>) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5199] <... munmap resumed>) = 0 [pid 5198] openat(AT_FDCWD, ".", O_RDONLY [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5201] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5200] <... futex resumed>) = 1 [pid 5201] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] <... openat resumed>) = 4 [pid 5198] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5201] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5198] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5197] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5204 attached [ 86.138505][ T5201] loop0: detected capacity change from 0 to 1024 [pid 5201] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5203] <... write resumed>) = 524288 [pid 5201] <... futex resumed>) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5199] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5198] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5204 [pid 5204] set_robust_list(0x555556b376a0, 24) = 0 [pid 5204] chdir("./11") = 0 [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] <... prctl resumed>) = 0 [pid 5200] <... futex resumed>) = 0 [pid 5198] <... openat resumed>) = 5 [pid 5204] setpgid(0, 0 [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5204] <... setpgid resumed>) = 0 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5203] munmap(0x7f6dade00000, 138412032 [pid 5201] memfd_create("syzkaller", 0 [pid 5203] <... munmap resumed>) = 0 [pid 5201] <... memfd_create resumed>) = 4 [pid 5199] close(4 [pid 5198] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5198] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5198] <... futex resumed>) = 0 [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] renameat2(5, "./file2", 4, "./file1", 0 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5198] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5201] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5198] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5198] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] write(3, "1000", 4 [pid 5203] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5204] <... write resumed>) = 4 [pid 5203] <... openat resumed>) = 4 [pid 5204] close(3 [pid 5203] ioctl(4, LOOP_SET_FD, 3 [pid 5204] <... close resumed>) = 0 [pid 5203] <... ioctl resumed>) = 0 [pid 5198] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5204] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... write resumed>) = 524288 [pid 5199] <... close resumed>) = 0 [pid 5198] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5055] <... ioctl resumed>) = 0 [pid 5199] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] <... futex resumed>) = 0 [pid 5204] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5204] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5199] <... futex resumed>) = 1 [pid 5199] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5196] <... futex resumed>) = 0 [pid 5198] <... futex resumed>) = 1 [pid 5198] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5196] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5204] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5199] <... futex resumed>) = 0 [pid 5196] <... futex resumed>) = 1 [pid 5204] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5203] close(3 [pid 5199] openat(AT_FDCWD, ".", O_RDONLY [pid 5197] <... futex resumed>) = 0 [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5203] <... close resumed>) = 0 ./strace-static-x86_64: Process 5205 attached [pid 5199] <... openat resumed>) = 4 [pid 5197] exit_group(0 [pid 5205] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5203] close(4 [pid 5199] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] <... futex resumed>) = ? [pid 5197] <... exit_group resumed>) = ? [pid 5205] <... rseq resumed>) = 0 [pid 5203] <... close resumed>) = 0 [pid 5205] set_robust_list(0x7f6db63839a0, 24 [pid 5203] mkdir("./file2", 0777 [pid 5199] <... futex resumed>) = 1 [pid 5198] +++ exited with 0 +++ [pid 5197] +++ exited with 0 +++ [pid 5196] <... futex resumed>) = 0 [pid 5205] <... set_robust_list resumed>) = 0 [pid 5204] <... clone3 resumed> => {parent_tid=[5205]}, 88) = 5205 [pid 5203] <... mkdir resumed>) = 0 [pid 5201] munmap(0x7f6dade00000, 138412032 [pid 5199] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5196] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] rt_sigprocmask(SIG_SETMASK, [], [pid 5204] rt_sigprocmask(SIG_SETMASK, [], [pid 5203] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5201] <... munmap resumed>) = 0 [pid 5199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5196] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5205] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5204] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5205] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5204] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] openat(AT_FDCWD, ".", O_RDONLY [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... close resumed>) = 0 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5204] <... futex resumed>) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5199] <... openat resumed>) = 5 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5205] memfd_create("syzkaller", 0 [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5201] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5199] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... memfd_create resumed>) = 3 [pid 5053] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5201] close(4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5206 attached [pid 5205] <... mmap resumed>) = 0x7f6dade00000 [pid 5199] <... futex resumed>) = 1 [pid 5196] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5206] set_robust_list(0x555556b376a0, 24 [pid 5205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5201] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] <... set_robust_list resumed>) = 0 [pid 5199] renameat2(5, "./file2", 4, "./file1", 0 [pid 5196] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5206] chdir("./12" [pid 5196] <... futex resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5206] <... chdir resumed>) = 0 [pid 5199] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] unlink("./11/binderfs") = 0 [pid 5199] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] <... futex resumed>) = 1 [pid 5196] <... futex resumed>) = 0 [pid 5206] setpgid(0, 0 [pid 5199] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5196] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5206 [pid 5199] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5196] <... futex resumed>) = 0 [pid 5206] <... setpgid resumed>) = 0 [pid 5199] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5199] <... futex resumed>) = 0 [pid 5196] exit_group(0) = ? [pid 5206] <... openat resumed>) = 3 [pid 5199] +++ exited with 0 +++ [pid 5196] +++ exited with 0 +++ [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5206] write(3, "1000", 4) = 4 [pid 5201] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5054] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] close(3 [pid 5200] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5206] <... close resumed>) = 0 [pid 5203] <... mount resumed>) = 0 [pid 5200] <... futex resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5206] symlink("/dev/binderfs", "./binderfs" [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... openat resumed>) = 3 [pid 5206] <... symlink resumed>) = 0 [pid 5201] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] newfstatat(3, "", [pid 5053] <... umount2 resumed>) = 0 [pid 5201] <... openat resumed>) = 4 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5203] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5201] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... openat resumed>) = 3 [pid 5201] <... futex resumed>) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5203] chdir("./file2" [pid 5201] openat(AT_FDCWD, ".", O_RDONLY [pid 5200] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(3, [pid 5203] <... chdir resumed>) = 0 [pid 5201] <... openat resumed>) = 5 [pid 5200] <... futex resumed>) = 0 [pid 5053] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5201] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5206] <... futex resumed>) = 0 [pid 5205] <... write resumed>) = 524288 [pid 5203] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5201] <... futex resumed>) = 0 [pid 5200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] newfstatat(AT_FDCWD, "./11/file2", [pid 5203] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] renameat2(5, "./file2", 4, "./file1", 0 [pid 5200] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5206] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [ 86.219298][ T5203] loop1: detected capacity change from 0 to 1024 [pid 5205] munmap(0x7f6dade00000, 138412032 [pid 5203] <... futex resumed>) = 1 [pid 5202] <... futex resumed>) = 0 [pid 5201] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5200] <... futex resumed>) = 0 [pid 5054] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5205] <... munmap resumed>) = 0 [pid 5203] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5202] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5203] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5202] <... futex resumed>) = 0 [pid 5201] <... futex resumed>) = 0 [pid 5200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5203] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5201] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5206] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5205] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5203] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5200] <... futex resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5206] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5205] <... openat resumed>) = 4 [pid 5201] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5200] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] newfstatat(4, "", [pid 5206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5205] ioctl(4, LOOP_SET_FD, 3 [pid 5203] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5206] <... mmap resumed>) = 0x7f6db6363000 [pid 5201] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] unlink("./10/binderfs" [pid 5053] getdents64(4, [pid 5206] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5203] <... futex resumed>) = 1 [pid 5202] <... futex resumed>) = 0 [pid 5201] <... futex resumed>) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5206] <... mprotect resumed>) = 0 [pid 5205] <... ioctl resumed>) = 0 [pid 5203] memfd_create("syzkaller", 0 [pid 5202] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] exit_group(0 [pid 5054] <... unlink resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5200] <... exit_group resumed>) = ? [pid 5053] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4) = 0 [pid 5053] rmdir("./11/file2") = 0 [pid 5201] <... futex resumed>) = ? [pid 5206] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5202] <... futex resumed>) = 0 [pid 5201] +++ exited with 0 +++ [pid 5200] +++ exited with 0 +++ [pid 5054] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5203] <... memfd_create resumed>) = 4 [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] getdents64(3, [pid 5206] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5207 attached [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5207] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5206] <... clone3 resumed> => {parent_tid=[5207]}, 88) = 5207 [pid 5203] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] close(3 [pid 5051] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5207] <... rseq resumed>) = 0 [pid 5206] rt_sigprocmask(SIG_SETMASK, [], [pid 5203] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5207] set_robust_list(0x7f6db63839a0, 24 [pid 5206] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5207] <... set_robust_list resumed>) = 0 [pid 5206] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] rt_sigprocmask(SIG_SETMASK, [], [pid 5051] <... openat resumed>) = 3 [pid 5207] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5206] <... futex resumed>) = 0 [pid 5053] rmdir("./11" [pid 5207] memfd_create("syzkaller", 0 [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5205] close(3 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5207] <... memfd_create resumed>) = 3 [pid 5205] <... close resumed>) = 0 [pid 5053] mkdir("./12", 0777 [pid 5205] close(4 [pid 5053] <... mkdir resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5205] <... close resumed>) = 0 [pid 5205] mkdir("./file2", 0777 [pid 5051] getdents64(3, [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5205] <... mkdir resumed>) = 0 [pid 5207] <... mmap resumed>) = 0x7f6dade00000 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... umount2 resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5203] <... write resumed>) = 524288 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5205] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5054] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] newfstatat(AT_FDCWD, "./10/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5203] munmap(0x7f6dade00000, 138412032 [pid 5054] umount2("./10/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./11/binderfs" [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... unlink resumed>) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5054] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 86.284166][ T5205] loop5: detected capacity change from 0 to 1024 [pid 5054] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] close(4) = 0 [pid 5054] rmdir("./10/file2") = 0 [pid 5203] <... munmap resumed>) = 0 [pid 5054] getdents64(3, [pid 5203] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5203] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] close(3 [pid 5203] close(4 [pid 5054] <... close resumed>) = 0 [pid 5054] rmdir("./10" [pid 5205] <... mount resumed>) = 0 [pid 5205] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5207] <... write resumed>) = 524288 [pid 5205] <... openat resumed>) = 3 [pid 5203] <... close resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5207] munmap(0x7f6dade00000, 138412032 [pid 5205] chdir("./file2" [pid 5203] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] mkdir("./11", 0777 [pid 5202] <... futex resumed>) = 0 [pid 5207] <... munmap resumed>) = 0 [pid 5202] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] <... chdir resumed>) = 0 [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5205] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5203] <... futex resumed>) = 1 [pid 5054] <... mkdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5207] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5205] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] newfstatat(AT_FDCWD, "./11/file2", [pid 5205] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... openat resumed>) = 4 [pid 5205] <... futex resumed>) = 1 [pid 5203] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5204] <... futex resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5203] <... openat resumed>) = 4 [pid 5054] <... openat resumed>) = 3 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5203] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5202] <... futex resumed>) = 0 [pid 5203] openat(AT_FDCWD, ".", O_RDONLY [pid 5202] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... openat resumed>) = 5 [pid 5202] <... futex resumed>) = 0 [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5203] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] ioctl(4, LOOP_SET_FD, 3 [pid 5205] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5204] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... ioctl resumed>) = 0 [pid 5051] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5207] <... ioctl resumed>) = 0 [pid 5204] <... futex resumed>) = 0 [pid 5203] <... futex resumed>) = 1 [pid 5202] <... futex resumed>) = 0 [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] close(3) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5203] renameat2(5, "./file2", 4, "./file1", 0 [pid 5202] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] rmdir("./11/file2" [pid 5203] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5202] <... futex resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5208 attached [pid 5203] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5208 [pid 5051] getdents64(3, [pid 5208] set_robust_list(0x555556b376a0, 24 [pid 5207] close(3 [pid 5205] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5203] <... futex resumed>) = 0 [pid 5202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5208] <... set_robust_list resumed>) = 0 [pid 5207] <... close resumed>) = 0 [pid 5205] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5202] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5208] chdir("./12" [pid 5207] close(4 [pid 5205] <... futex resumed>) = 1 [pid 5204] <... futex resumed>) = 0 [pid 5203] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5202] <... futex resumed>) = 0 [pid 5051] close(3 [pid 5208] <... chdir resumed>) = 0 [pid 5205] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5204] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5207] <... close resumed>) = 0 [pid 5205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5204] <... futex resumed>) = 0 [pid 5203] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5051] <... close resumed>) = 0 [pid 5208] <... prctl resumed>) = 0 [pid 5205] memfd_create("syzkaller", 0 [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5203] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5051] rmdir("./11" [pid 5208] setpgid(0, 0 [pid 5207] mkdir("./file2", 0777 [pid 5203] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5202] <... futex resumed>) = 0 [pid 5205] <... memfd_create resumed>) = 4 [pid 5202] exit_group(0 [pid 5208] <... setpgid resumed>) = 0 [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5202] <... exit_group resumed>) = ? [pid 5051] <... rmdir resumed>) = 0 [pid 5205] <... mmap resumed>) = 0x7f6dade00000 [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5203] +++ exited with 0 +++ [pid 5202] +++ exited with 0 +++ [pid 5207] <... mkdir resumed>) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5051] mkdir("./12", 0777 [pid 5208] <... openat resumed>) = 3 [pid 5207] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5205] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5208] write(3, "1000", 4 [pid 5052] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5208] <... write resumed>) = 4 [pid 5054] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... mkdir resumed>) = 0 [pid 5208] close(3 [pid 5052] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5208] <... close resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5208] symlink("/dev/binderfs", "./binderfs" [pid 5052] <... openat resumed>) = 3 [pid 5051] <... openat resumed>) = 3 [pid 5208] <... symlink resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] newfstatat(3, "", [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5209 attached ) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5208] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5052] getdents64(3, [pid 5208] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5209 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5052] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5209] set_robust_list(0x555556b376a0, 24 [pid 5208] <... mmap resumed>) = 0x7f6db6363000 [pid 5209] <... set_robust_list resumed>) = 0 [pid 5208] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5207] <... mount resumed>) = 0 [pid 5205] <... write resumed>) = 524288 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5208] <... mprotect resumed>) = 0 [pid 5207] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5209] chdir("./11" [pid 5207] <... openat resumed>) = 3 [pid 5052] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5208] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5207] chdir("./file2" [pid 5208] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5207] <... chdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5205] munmap(0x7f6dade00000, 138412032 [pid 5052] unlink("./11/binderfs" [pid 5209] <... chdir resumed>) = 0 [pid 5207] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5210 attached [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5207] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5209] <... prctl resumed>) = 0 [pid 5208] <... clone3 resumed> => {parent_tid=[5210]}, 88) = 5210 [pid 5207] <... futex resumed>) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5210] <... rseq resumed>) = 0 [pid 5209] setpgid(0, 0 [pid 5208] rt_sigprocmask(SIG_SETMASK, [], [pid 5207] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] set_robust_list(0x7f6db63839a0, 24 [pid 5209] <... setpgid resumed>) = 0 [pid 5208] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5206] <... futex resumed>) = 0 [pid 5210] <... set_robust_list resumed>) = 0 [pid 5207] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] rt_sigprocmask(SIG_SETMASK, [], [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5208] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5205] <... munmap resumed>) = 0 [pid 5208] <... futex resumed>) = 0 [pid 5210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5210] memfd_create("syzkaller", 0 [pid 5209] <... openat resumed>) = 3 [ 86.379567][ T5207] loop4: detected capacity change from 0 to 1024 [pid 5205] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5210] <... memfd_create resumed>) = 3 [pid 5207] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5209] write(3, "1000", 4 [pid 5052] <... umount2 resumed>) = 0 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5207] <... futex resumed>) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5210] <... mmap resumed>) = 0x7f6dade00000 [pid 5209] <... write resumed>) = 4 [pid 5207] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] close(4 [pid 5210] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5209] close(3 [pid 5207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5206] <... futex resumed>) = 0 [pid 5052] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5209] <... close resumed>) = 0 [pid 5207] memfd_create("syzkaller", 0 [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5205] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5209] symlink("/dev/binderfs", "./binderfs" [pid 5052] newfstatat(AT_FDCWD, "./11/file2", [pid 5209] <... symlink resumed>) = 0 [pid 5207] <... memfd_create resumed>) = 4 [pid 5205] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5210] <... write resumed>) = 524288 [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5205] <... futex resumed>) = 1 [pid 5204] <... futex resumed>) = 0 [pid 5207] <... mmap resumed>) = 0x7f6dade00000 [pid 5051] <... ioctl resumed>) = 0 [pid 5204] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5209] <... futex resumed>) = 0 [pid 5204] <... futex resumed>) = 0 [pid 5205] openat(AT_FDCWD, ".", O_RDONLY [pid 5052] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] munmap(0x7f6dade00000, 138412032 [pid 5209] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5210] <... munmap resumed>) = 0 [pid 5205] <... openat resumed>) = 4 [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5209] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5205] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5209] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5205] <... futex resumed>) = 1 [pid 5204] <... futex resumed>) = 0 [pid 5210] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5209] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5205] openat(AT_FDCWD, ".", O_RDONLY [pid 5204] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... openat resumed>) = 4 [pid 5210] <... openat resumed>) = 4 [pid 5209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5205] <... openat resumed>) = 5 [pid 5204] <... futex resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5051] close(3 [pid 5209] <... mmap resumed>) = 0x7f6db6363000 [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5205] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] ioctl(4, LOOP_SET_FD, 3 [pid 5209] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5205] <... futex resumed>) = 0 [pid 5204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... close resumed>) = 0 [pid 5207] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5205] renameat2(5, "./file2", 4, "./file1", 0 [pid 5204] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5209] <... mprotect resumed>) = 0 [pid 5204] <... futex resumed>) = 0 [pid 5052] getdents64(4, ./strace-static-x86_64: Process 5211 attached [pid 5209] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5205] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, [pid 5205] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] set_robust_list(0x555556b376a0, 24) = 0 [pid 5209] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5205] <... futex resumed>) = 1 [pid 5204] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5205] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5204] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] close(4 [pid 5209] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5205] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5052] <... close resumed>) = 0 [pid 5204] <... futex resumed>) = 0 [pid 5204] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5209] <... clone3 resumed> => {parent_tid=[5212]}, 88) = 5212 [pid 5052] rmdir("./11/file2" [pid 5211] chdir("./12" [pid 5209] rt_sigprocmask(SIG_SETMASK, [], [pid 5207] <... write resumed>) = 524288 [pid 5052] <... rmdir resumed>) = 0 [pid 5209] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5211] <... chdir resumed>) = 0 [pid 5209] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] getdents64(3, [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5211 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5209] <... futex resumed>) = 0 [pid 5205] <... futex resumed>) = 1 [pid 5204] <... futex resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5211] <... prctl resumed>) = 0 [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5205] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5204] exit_group(0 [pid 5211] setpgid(0, 0 [pid 5204] <... exit_group resumed>) = ? [pid 5052] close(3 [pid 5205] <... futex resumed>) = ? [pid 5211] <... setpgid resumed>) = 0 [pid 5052] <... close resumed>) = 0 ./strace-static-x86_64: Process 5212 attached [pid 5207] munmap(0x7f6dade00000, 138412032 [pid 5212] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5052] rmdir("./11" [pid 5212] <... rseq resumed>) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5212] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5212] rt_sigprocmask(SIG_SETMASK, [], [pid 5052] <... rmdir resumed>) = 0 [pid 5212] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5212] memfd_create("syzkaller", 0 [pid 5211] <... openat resumed>) = 3 [pid 5212] <... memfd_create resumed>) = 3 [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5207] <... munmap resumed>) = 0 [pid 5207] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5212] <... mmap resumed>) = 0x7f6dade00000 [pid 5211] write(3, "1000", 4 [pid 5207] close(4 [pid 5052] mkdir("./12", 0777 [pid 5212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5211] <... write resumed>) = 4 [pid 5210] <... ioctl resumed>) = 0 [pid 5207] <... close resumed>) = 0 [pid 5205] +++ exited with 0 +++ [pid 5204] +++ exited with 0 +++ [pid 5211] close(3) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5211] symlink("/dev/binderfs", "./binderfs" [pid 5210] close(3) = 0 [pid 5210] close(4 [pid 5052] <... mkdir resumed>) = 0 [pid 5210] <... close resumed>) = 0 [pid 5210] mkdir("./file2", 0777 [pid 5211] <... symlink resumed>) = 0 [pid 5210] <... mkdir resumed>) = 0 [pid 5056] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5056] getdents64(3, [pid 5211] <... futex resumed>) = 0 [pid 5210] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5211] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5056] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] <... write resumed>) = 524288 [pid 5211] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5211] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5211] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] unlink("./11/binderfs" [pid 5211] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] <... unlink resumed>) = 0 [pid 5211] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5056] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] <... mprotect resumed>) = 0 [pid 5211] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5207] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5207] <... futex resumed>) = 1 [pid 5211] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5207] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5206] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5206] <... futex resumed>) = 1 [pid 5211] <... clone3 resumed> => {parent_tid=[5213]}, 88) = 5213 ./strace-static-x86_64: Process 5213 attached [pid 5211] rt_sigprocmask(SIG_SETMASK, [], [pid 5207] openat(AT_FDCWD, ".", O_RDONLY [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5213] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5211] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5207] <... openat resumed>) = 4 [pid 5211] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... mount resumed>) = 0 [pid 5207] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5056] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5207] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5213] <... rseq resumed>) = 0 [pid 5212] munmap(0x7f6dade00000, 138412032 [pid 5210] <... openat resumed>) = 3 [pid 5207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5206] <... futex resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./11/file2", [pid 5213] set_robust_list(0x7f6db63839a0, 24 [pid 5212] <... munmap resumed>) = 0 [pid 5211] <... futex resumed>) = 0 [pid 5210] chdir("./file2" [pid 5207] openat(AT_FDCWD, ".", O_RDONLY [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5207] <... openat resumed>) = 5 [pid 5210] <... chdir resumed>) = 0 [pid 5207] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5210] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5207] <... futex resumed>) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5056] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] <... set_robust_list resumed>) = 0 [pid 5212] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5210] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5207] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5213] rt_sigprocmask(SIG_SETMASK, [], [pid 5212] <... openat resumed>) = 4 [pid 5210] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 86.465590][ T5210] loop2: detected capacity change from 0 to 1024 [pid 5206] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5213] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5212] ioctl(4, LOOP_SET_FD, 3 [pid 5210] <... futex resumed>) = 1 [pid 5208] <... futex resumed>) = 0 [pid 5207] renameat2(5, "./file2", 4, "./file1", 0 [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 4 [pid 5213] memfd_create("syzkaller", 0 [pid 5210] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] newfstatat(4, "", [pid 5207] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5213] <... memfd_create resumed>) = 3 [pid 5208] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5208] <... futex resumed>) = 1 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] <... futex resumed>) = 0 [pid 5213] <... mmap resumed>) = 0x7f6dade00000 [pid 5210] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5207] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5206] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5207] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5206] <... futex resumed>) = 0 [pid 5056] getdents64(4, [pid 5210] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5206] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5210] <... futex resumed>) = 1 [pid 5208] <... futex resumed>) = 0 [pid 5207] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] memfd_create("syzkaller", 0 [pid 5208] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5210] <... memfd_create resumed>) = 4 [pid 5208] <... futex resumed>) = 0 [pid 5207] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] exit_group(0 [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5207] <... futex resumed>) = ? [pid 5206] <... exit_group resumed>) = ? [pid 5213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5212] <... ioctl resumed>) = 0 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5207] +++ exited with 0 +++ [pid 5206] +++ exited with 0 +++ [pid 5056] getdents64(4, [pid 5210] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5212] close(3 [pid 5210] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] close(4) = 0 [pid 5056] rmdir("./11/file2" [pid 5055] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] getdents64(3, [pid 5055] newfstatat(3, "", [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(3 [pid 5055] getdents64(3, [pid 5056] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5056] rmdir("./11" [pid 5055] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] <... write resumed>) = 524288 [pid 5212] <... close resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] mkdir("./12", 0777 [pid 5055] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5212] close(4 [pid 5210] <... write resumed>) = 524288 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... ioctl resumed>) = 0 [pid 5212] <... close resumed>) = 0 [pid 5055] unlink("./12/binderfs") = 0 [pid 5212] mkdir("./file2", 0777 [pid 5210] munmap(0x7f6dade00000, 138412032 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] close(3 [pid 5056] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5213] munmap(0x7f6dade00000, 138412032 [pid 5210] <... munmap resumed>) = 0 [pid 5212] <... mkdir resumed>) = 0 [pid 5210] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5213] <... munmap resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5214 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5212] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, ""./strace-static-x86_64: Process 5214 attached [pid 5214] set_robust_list(0x555556b376a0, 24 [pid 5210] close(4) = 0 [pid 5214] <... set_robust_list resumed>) = 0 [pid 5213] <... openat resumed>) = 4 [pid 5214] chdir("./12" [pid 5213] ioctl(4, LOOP_SET_FD, 3 [pid 5214] <... chdir resumed>) = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 86.521183][ T5212] loop3: detected capacity change from 0 to 1024 [pid 5214] setpgid(0, 0) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./12/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5214] write(3, "1000", 4 [pid 5055] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5214] <... write resumed>) = 4 [pid 5055] <... openat resumed>) = 4 [pid 5214] close(3 [pid 5055] newfstatat(4, "", [pid 5214] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs" [pid 5055] getdents64(4, [pid 5214] <... symlink resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5210] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(4, [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... futex resumed>) = 1 [pid 5208] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5214] <... futex resumed>) = 0 [pid 5210] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5208] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(4 [pid 5214] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5208] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5210] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] rmdir("./12/file2" [pid 5214] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5210] <... openat resumed>) = 4 [pid 5055] <... rmdir resumed>) = 0 [pid 5214] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5210] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5210] <... futex resumed>) = 1 [pid 5208] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5214] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5208] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] <... mprotect resumed>) = 0 [pid 5208] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5210] openat(AT_FDCWD, ".", O_RDONLY [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] close(3 [pid 5214] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5213] <... ioctl resumed>) = 0 [pid 5212] <... mount resumed>) = 0 [pid 5210] <... openat resumed>) = 5 [pid 5212] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5214] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5213] close(3 [pid 5212] <... openat resumed>) = 3 [pid 5210] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... ioctl resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5210] <... futex resumed>) = 1 [pid 5208] <... futex resumed>) = 0 [pid 5208] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] renameat2(5, "./file2", 4, "./file1", 0 [pid 5214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5210] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5210] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] chdir("./file2"./strace-static-x86_64: Process 5215 attached [pid 5213] <... close resumed>) = 0 [pid 5213] close(4 [pid 5215] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5214] <... clone3 resumed> => {parent_tid=[5215]}, 88) = 5215 [pid 5213] <... close resumed>) = 0 [pid 5212] <... chdir resumed>) = 0 [pid 5210] <... futex resumed>) = 1 [pid 5208] <... futex resumed>) = 0 [pid 5055] rmdir("./12" [pid 5215] <... rseq resumed>) = 0 [pid 5214] rt_sigprocmask(SIG_SETMASK, [], [pid 5213] mkdir("./file2", 0777 [pid 5212] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5210] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5208] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5215] set_robust_list(0x7f6db63839a0, 24 [pid 5214] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5210] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5208] <... futex resumed>) = 0 [pid 5210] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] <... futex resumed>) = 0 [pid 5208] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5215] <... set_robust_list resumed>) = 0 [pid 5214] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... mkdir resumed>) = 0 [pid 5210] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5208] exit_group(0 [pid 5215] rt_sigprocmask(SIG_SETMASK, [], [pid 5214] <... futex resumed>) = 0 [pid 5213] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5212] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5210] <... futex resumed>) = ? [pid 5208] <... exit_group resumed>) = ? [pid 5215] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5212] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] +++ exited with 0 +++ [pid 5215] memfd_create("syzkaller", 0 [pid 5213] <... mount resumed>) = 0 [pid 5212] <... futex resumed>) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5208] +++ exited with 0 +++ [ 86.574471][ T5213] loop0: detected capacity change from 0 to 1024 [pid 5056] close(3 [pid 5215] <... memfd_create resumed>) = 3 [pid 5213] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5212] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5055] mkdir("./13", 0777 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5213] <... openat resumed>) = 3 [pid 5212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5209] <... futex resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... mkdir resumed>) = 0 [pid 5215] <... mmap resumed>) = 0x7f6dade00000 [pid 5213] chdir("./file2" [pid 5212] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5213] <... chdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5216 attached [pid 5215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5213] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] set_robust_list(0x555556b376a0, 24 [pid 5212] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] <... set_robust_list resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5212] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] chdir("./12" [pid 5212] <... futex resumed>) = 1 [pid 5212] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5053] <... openat resumed>) = 3 [pid 5216] <... chdir resumed>) = 0 [pid 5213] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(3, "", [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5213] <... futex resumed>) = 1 [pid 5211] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5216] <... prctl resumed>) = 0 [pid 5213] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5211] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] setpgid(0, 0 [pid 5213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5211] <... futex resumed>) = 0 [pid 5209] <... futex resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5216 [pid 5216] <... setpgid resumed>) = 0 [pid 5213] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5209] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... futex resumed>) = 0 [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5209] <... futex resumed>) = 1 [pid 5212] memfd_create("syzkaller", 0 [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5212] <... memfd_create resumed>) = 4 [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5212] <... mmap resumed>) = 0x7f6dade00000 [pid 5213] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5053] getdents64(3, [pid 5213] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5211] <... futex resumed>) = 0 [pid 5216] <... openat resumed>) = 3 [pid 5211] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5213] memfd_create("syzkaller", 0 [pid 5216] write(3, "1000", 4) = 4 [pid 5213] <... memfd_create resumed>) = 4 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5216] close(3 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5216] <... close resumed>) = 0 [pid 5213] <... mmap resumed>) = 0x7f6dade00000 [pid 5212] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] symlink("/dev/binderfs", "./binderfs" [pid 5213] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5216] <... symlink resumed>) = 0 [pid 5212] <... write resumed>) = 524288 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5212] munmap(0x7f6dade00000, 138412032 [pid 5216] <... futex resumed>) = 0 [pid 5215] <... write resumed>) = 524288 [pid 5213] <... write resumed>) = 524288 [pid 5055] <... ioctl resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5216] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5053] unlink("./12/binderfs") = 0 [pid 5053] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] munmap(0x7f6dade00000, 138412032 [pid 5212] <... munmap resumed>) = 0 [pid 5213] <... munmap resumed>) = 0 [pid 5215] munmap(0x7f6dade00000, 138412032 [pid 5216] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] close(3 [pid 5215] <... munmap resumed>) = 0 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5212] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] <... close resumed>) = 0 [pid 5216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5213] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5212] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5215] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5216] <... mmap resumed>) = 0x7f6db6363000 [pid 5213] close(4 [pid 5212] close(4 [pid 5216] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5215] <... openat resumed>) = 4 [pid 5213] <... close resumed>) = 0 [pid 5216] <... mprotect resumed>) = 0 [pid 5215] ioctl(4, LOOP_SET_FD, 3 [pid 5212] <... close resumed>) = 0 ./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x555556b376a0, 24) = 0 [pid 5217] chdir("./13" [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5217 [pid 5217] <... chdir resumed>) = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5212] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5209] <... futex resumed>) = 0 [pid 5209] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] write(3, "1000", 4 [pid 5213] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... futex resumed>) = 1 [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5217] <... write resumed>) = 4 [pid 5213] <... futex resumed>) = 1 [pid 5212] openat(AT_FDCWD, ".", O_RDONLY [pid 5211] <... futex resumed>) = 0 [pid 5217] close(3 [pid 5213] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] <... openat resumed>) = 4 [pid 5211] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... close resumed>) = 0 [pid 5213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5211] <... futex resumed>) = 0 [pid 5217] symlink("/dev/binderfs", "./binderfs" [pid 5213] openat(AT_FDCWD, ".", O_RDONLY [pid 5212] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5213] <... openat resumed>) = 4 [pid 5212] <... futex resumed>) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5217] <... symlink resumed>) = 0 [pid 5213] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] openat(AT_FDCWD, ".", O_RDONLY [pid 5209] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] <... futex resumed>) = 1 [pid 5212] <... openat resumed>) = 5 [pid 5211] <... futex resumed>) = 0 [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... futex resumed>) = 0 [pid 5213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5212] <... futex resumed>) = 1 [pid 5211] <... futex resumed>) = 0 [pid 5209] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5217] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5213] openat(AT_FDCWD, ".", O_RDONLY [pid 5212] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5209] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5213] <... openat resumed>) = 5 [pid 5212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5209] <... futex resumed>) = 0 [pid 5053] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5213] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] renameat2(5, "./file2", 4, "./file1", 0 [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5217] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5213] <... futex resumed>) = 1 [pid 5212] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5211] <... futex resumed>) = 0 [pid 5217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5213] renameat2(5, "./file2", 4, "./file1", 0 [pid 5211] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... mmap resumed>) = 0x7f6db6363000 [pid 5216] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5213] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5212] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5217] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5213] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... futex resumed>) = 1 [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5209] <... futex resumed>) = 0 [pid 5217] <... mprotect resumed>) = 0 [pid 5213] <... futex resumed>) = 0 [pid 5212] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5209] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5213] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5211] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5209] <... futex resumed>) = 0 [pid 5213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5212] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5211] <... futex resumed>) = 0 [pid 5209] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5217] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5213] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5212] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5211] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5217] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5213] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5212] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5218 attached [pid 5217] <... clone3 resumed> => {parent_tid=[5218]}, 88) = 5218 [pid 5216] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5215] <... ioctl resumed>) = 0 [pid 5213] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... futex resumed>) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./12/file2", [pid 5218] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5217] rt_sigprocmask(SIG_SETMASK, [], [pid 5216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5215] close(3 [pid 5213] <... futex resumed>) = 1 [pid 5212] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5211] <... futex resumed>) = 0 [pid 5209] exit_group(0 [pid 5218] <... rseq resumed>) = 0 [pid 5217] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5215] <... close resumed>) = 0 [pid 5213] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] <... futex resumed>) = ? [pid 5211] exit_group(0 [pid 5209] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5219 attached [pid 5218] set_robust_list(0x7f6db63839a0, 24 [pid 5217] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] close(4 [pid 5213] <... futex resumed>) = ? [pid 5212] +++ exited with 0 +++ [pid 5211] <... exit_group resumed>) = ? [pid 5053] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5219] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5218] <... set_robust_list resumed>) = 0 [pid 5217] <... futex resumed>) = 0 [pid 5216] <... clone3 resumed> => {parent_tid=[5219]}, 88) = 5219 [pid 5213] +++ exited with 0 +++ [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] rt_sigprocmask(SIG_SETMASK, [], [pid 5053] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5216] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5053] newfstatat(4, "", [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5211] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5219] <... rseq resumed>) = 0 [pid 5218] rt_sigprocmask(SIG_SETMASK, [], [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5215] <... close resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5219] set_robust_list(0x7f6db63839a0, 24 [pid 5218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5215] mkdir("./file2", 0777 [pid 5209] +++ exited with 0 +++ [pid 5053] getdents64(4, [pid 5219] <... set_robust_list resumed>) = 0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5219] rt_sigprocmask(SIG_SETMASK, [], [pid 5054] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5219] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5219] memfd_create("syzkaller", 0 [pid 5218] memfd_create("syzkaller", 0 [pid 5054] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5219] <... memfd_create resumed>) = 3 [pid 5054] newfstatat(3, "", [pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5218] <... memfd_create resumed>) = 3 [pid 5215] <... mkdir resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5219] <... mmap resumed>) = 0x7f6dade00000 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] getdents64(3, [pid 5053] getdents64(4, [pid 5051] <... openat resumed>) = 3 [pid 5218] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] newfstatat(3, "", [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] close(4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(3, [pid 5053] rmdir("./12/file2" [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(3, [pid 5051] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] close(3 [pid 5051] unlink("./12/binderfs" [pid 5053] <... close resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5053] rmdir("./12" [ 86.694149][ T5215] loop1: detected capacity change from 0 to 1024 [pid 5051] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5215] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5053] <... rmdir resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] mkdir("./13", 0777 [pid 5219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5053] <... mkdir resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] unlink("./11/binderfs" [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5051] <... umount2 resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5218] <... write resumed>) = 524288 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./12/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, [pid 5054] <... unlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5051] rmdir("./12/file2" [pid 5054] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] close(3 [pid 5219] <... write resumed>) = 524288 [pid 5218] munmap(0x7f6dade00000, 138412032 [pid 5215] <... mount resumed>) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5051] rmdir("./12" [pid 5215] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5054] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5051] mkdir("./13", 0777 [pid 5219] munmap(0x7f6dade00000, 138412032 [pid 5218] <... munmap resumed>) = 0 [pid 5215] <... openat resumed>) = 3 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5218] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5215] chdir("./file2" [pid 5054] newfstatat(AT_FDCWD, "./11/file2", [pid 5215] <... chdir resumed>) = 0 [pid 5219] <... munmap resumed>) = 0 [pid 5215] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5218] <... openat resumed>) = 4 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5219] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5218] ioctl(4, LOOP_SET_FD, 3 [pid 5215] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./11/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5215] <... futex resumed>) = 1 [pid 5214] <... futex resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5214] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5215] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5214] <... futex resumed>) = 0 [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5219] <... openat resumed>) = 4 [pid 5219] ioctl(4, LOOP_SET_FD, 3 [pid 5054] <... openat resumed>) = 4 [pid 5053] <... ioctl resumed>) = 0 [pid 5219] <... ioctl resumed>) = 0 [pid 5218] <... ioctl resumed>) = 0 [pid 5215] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5054] newfstatat(4, "", [pid 5215] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5214] <... futex resumed>) = 0 [pid 5215] memfd_create("syzkaller", 0 [pid 5214] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... memfd_create resumed>) = 4 [pid 5214] <... futex resumed>) = 0 [pid 5219] close(3 [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5219] <... close resumed>) = 0 [pid 5219] close(4) = 0 [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5219] mkdir("./file2", 0777) = 0 [pid 5218] close(3 [pid 5215] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b37690) = 5220 [pid 5218] <... close resumed>) = 0 [pid 5054] getdents64(4, [pid 5218] close(4 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5218] <... close resumed>) = 0 [pid 5054] getdents64(4, [pid 5218] mkdir("./file2", 0777 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5219] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5218] <... mkdir resumed>) = 0 [pid 5054] close(4) = 0 [pid 5054] rmdir("./11/file2") = 0 [pid 5218] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5054] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] close(3) = 0 [pid 5054] rmdir("./11") = 0 [pid 5051] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5220 attached [pid 5219] <... mount resumed>) = 0 [pid 5054] mkdir("./12", 0777 [pid 5220] set_robust_list(0x555556b376a0, 24 [pid 5219] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5218] <... mount resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [ 86.810433][ T5219] loop5: detected capacity change from 0 to 1024 [ 86.811085][ T5218] loop4: detected capacity change from 0 to 1024 [pid 5051] close(3 [pid 5220] <... set_robust_list resumed>) = 0 [pid 5219] chdir("./file2" [pid 5215] <... write resumed>) = 524288 [pid 5051] <... close resumed>) = 0 [pid 5219] <... chdir resumed>) = 0 [pid 5218] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5219] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5218] <... openat resumed>) = 3 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5219] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... openat resumed>) = 3 [pid 5218] chdir("./file2" [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5218] <... chdir resumed>) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5219] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] <... futex resumed>) = 1 [pid 5218] <... futex resumed>) = 1 [pid 5219] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5220] chdir("./13" [pid 5216] <... futex resumed>) = 0 [pid 5217] <... futex resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5216] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] <... futex resumed>) = 0 [pid 5219] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5221 attached [pid 5220] <... chdir resumed>) = 0 [pid 5217] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... futex resumed>) = 1 [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5219] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5218] <... futex resumed>) = 0 [pid 5217] <... futex resumed>) = 1 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5221 [pid 5219] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5215] munmap(0x7f6dade00000, 138412032 [pid 5221] set_robust_list(0x555556b376a0, 24 [pid 5220] <... prctl resumed>) = 0 [pid 5219] <... futex resumed>) = 1 [pid 5218] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... futex resumed>) = 0 [pid 5215] <... munmap resumed>) = 0 [pid 5220] setpgid(0, 0 [pid 5219] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5220] <... setpgid resumed>) = 0 [pid 5216] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5216] <... futex resumed>) = 0 [pid 5215] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5219] memfd_create("syzkaller", 0 [pid 5218] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5215] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5220] <... openat resumed>) = 3 [pid 5219] <... memfd_create resumed>) = 4 [pid 5218] <... futex resumed>) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5215] close(4 [pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5218] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] write(3, "1000", 4 [pid 5219] <... mmap resumed>) = 0x7f6dade00000 [pid 5220] <... write resumed>) = 4 [pid 5221] <... set_robust_list resumed>) = 0 [pid 5220] close(3 [pid 5217] <... futex resumed>) = 0 [pid 5220] <... close resumed>) = 0 [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5221] chdir("./13" [pid 5220] symlink("/dev/binderfs", "./binderfs" [pid 5218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5218] memfd_create("syzkaller", 0) = 4 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5220] <... symlink resumed>) = 0 [pid 5221] <... chdir resumed>) = 0 [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] <... mmap resumed>) = 0x7f6dade00000 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5220] <... futex resumed>) = 0 [pid 5218] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5219] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5221] <... prctl resumed>) = 0 [pid 5220] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5215] <... close resumed>) = 0 [pid 5220] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5215] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] setpgid(0, 0 [pid 5220] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5219] <... write resumed>) = 524288 [pid 5221] <... setpgid resumed>) = 0 [pid 5220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5215] <... futex resumed>) = 1 [pid 5214] <... futex resumed>) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5220] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5214] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] openat(AT_FDCWD, ".", O_RDONLY [pid 5220] <... mprotect resumed>) = 0 [pid 5215] <... openat resumed>) = 4 [pid 5214] <... futex resumed>) = 0 [pid 5221] <... openat resumed>) = 3 [pid 5221] write(3, "1000", 4 [pid 5220] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5215] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5221] <... write resumed>) = 4 [pid 5220] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5215] <... futex resumed>) = 0 [pid 5214] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] close(3 [pid 5220] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5215] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5214] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5222 attached [pid 5221] <... close resumed>) = 0 [pid 5215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5214] <... futex resumed>) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5215] openat(AT_FDCWD, ".", O_RDONLY [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5220] <... clone3 resumed> => {parent_tid=[5222]}, 88) = 5222 [pid 5215] <... openat resumed>) = 5 [pid 5222] <... rseq resumed>) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs" [pid 5220] rt_sigprocmask(SIG_SETMASK, [], [pid 5218] <... write resumed>) = 524288 [pid 5215] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5215] <... futex resumed>) = 1 [pid 5214] <... futex resumed>) = 0 [pid 5220] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] munmap(0x7f6dade00000, 138412032 [pid 5215] renameat2(5, "./file2", 4, "./file1", 0 [pid 5214] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] set_robust_list(0x7f6db63839a0, 24 [pid 5221] <... symlink resumed>) = 0 [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5219] <... munmap resumed>) = 0 [pid 5215] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5214] <... futex resumed>) = 0 [pid 5222] <... set_robust_list resumed>) = 0 [pid 5215] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] rt_sigprocmask(SIG_SETMASK, [], [pid 5215] <... futex resumed>) = 0 [pid 5214] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5222] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5215] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5214] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] memfd_create("syzkaller", 0 [pid 5215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5219] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5215] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5222] <... memfd_create resumed>) = 3 [pid 5221] <... futex resumed>) = 0 [pid 5218] munmap(0x7f6dade00000, 138412032 [pid 5215] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5214] <... futex resumed>) = 0 [pid 5054] close(3 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5221] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5219] close(4 [pid 5218] <... munmap resumed>) = 0 [pid 5215] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... close resumed>) = 0 [pid 5222] <... mmap resumed>) = 0x7f6dade00000 [pid 5221] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5219] <... close resumed>) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5215] <... futex resumed>) = 0 [pid 5214] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5221] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5218] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5214] exit_group(0 [pid 5221] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5218] close(4 [pid 5214] <... exit_group resumed>) = ? [pid 5215] +++ exited with 0 +++ [pid 5218] <... close resumed>) = 0 [pid 5222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5219] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] +++ exited with 0 +++ [pid 5221] <... mmap resumed>) = 0x7f6db6363000 [pid 5219] <... futex resumed>) = 1 [pid 5218] <... futex resumed>) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5216] <... futex resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5223 [pid 5221] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5219] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5221] <... mprotect resumed>) = 0 [pid 5219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] <... futex resumed>) = 0 [pid 5216] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5223 attached [pid 5221] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5219] openat(AT_FDCWD, ".", O_RDONLY [pid 5218] openat(AT_FDCWD, ".", O_RDONLY [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5223] set_robust_list(0x555556b376a0, 24 [pid 5219] <... openat resumed>) = 4 [pid 5218] <... openat resumed>) = 4 [pid 5052] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5223] <... set_robust_list resumed>) = 0 [pid 5219] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5223] chdir("./12" [pid 5221] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5219] <... futex resumed>) = 1 [pid 5218] <... futex resumed>) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5216] <... futex resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5223] <... chdir resumed>) = 0 [pid 5216] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... futex resumed>) = 0 [pid 5221] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5219] openat(AT_FDCWD, ".", O_RDONLY [pid 5218] openat(AT_FDCWD, ".", O_RDONLY [pid 5217] <... futex resumed>) = 0 [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5224 attached [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5222] <... write resumed>) = 524288 [pid 5219] <... openat resumed>) = 5 [pid 5218] <... openat resumed>) = 5 [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] newfstatat(3, "", [pid 5224] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5223] <... prctl resumed>) = 0 [pid 5221] <... clone3 resumed> => {parent_tid=[5224]}, 88) = 5224 [pid 5219] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] rt_sigprocmask(SIG_SETMASK, [], [pid 5218] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] <... futex resumed>) = 1 [pid 5221] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5219] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] <... futex resumed>) = 0 [pid 5216] <... futex resumed>) = 0 [pid 5221] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5216] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] <... futex resumed>) = 0 [pid 5216] <... futex resumed>) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5219] renameat2(5, "./file2", 4, "./file1", 0 [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] <... rseq resumed>) = 0 [pid 5223] setpgid(0, 0 [pid 5219] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5224] set_robust_list(0x7f6db63839a0, 24 [pid 5223] <... setpgid resumed>) = 0 [pid 5219] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... set_robust_list resumed>) = 0 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5219] <... futex resumed>) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5217] <... futex resumed>) = 1 [pid 5216] <... futex resumed>) = 0 [pid 5052] getdents64(3, [pid 5224] rt_sigprocmask(SIG_SETMASK, [], [pid 5223] <... openat resumed>) = 3 [pid 5219] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] renameat2(5, "./file2", 4, "./file1", 0 [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5224] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5223] write(3, "1000", 4 [pid 5222] munmap(0x7f6dade00000, 138412032 [pid 5219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5218] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5216] <... futex resumed>) = 0 [pid 5052] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5224] memfd_create("syzkaller", 0 [pid 5223] <... write resumed>) = 4 [pid 5222] <... munmap resumed>) = 0 [pid 5219] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5218] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5224] <... memfd_create resumed>) = 3 [pid 5223] close(3 [pid 5218] <... futex resumed>) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5219] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5223] <... close resumed>) = 0 [pid 5219] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5224] <... mmap resumed>) = 0x7f6dade00000 [pid 5223] symlink("/dev/binderfs", "./binderfs" [pid 5222] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] <... futex resumed>) = 0 [pid 5052] unlink("./12/binderfs" [pid 5224] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5223] <... symlink resumed>) = 0 [pid 5222] <... openat resumed>) = 4 [pid 5219] <... futex resumed>) = 1 [pid 5218] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5217] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... futex resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5052] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5222] ioctl(4, LOOP_SET_FD, 3 [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5216] exit_group(0 [pid 5219] <... futex resumed>) = ? [pid 5218] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... exit_group resumed>) = ? [pid 5223] <... futex resumed>) = 0 [pid 5219] +++ exited with 0 +++ [pid 5218] <... futex resumed>) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5216] +++ exited with 0 +++ [pid 5222] <... ioctl resumed>) = 0 [pid 5223] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5222] close(3 [pid 5218] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] exit_group(0 [pid 5223] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5222] <... close resumed>) = 0 [pid 5218] <... futex resumed>) = ? [pid 5217] <... exit_group resumed>) = ? [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5223] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5222] close(4 [pid 5056] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5223] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5223] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] <... openat resumed>) = 3 [pid 5223] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5056] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./12/file2", [pid 5056] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5223] <... mprotect resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5224] <... write resumed>) = 524288 [pid 5223] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5222] <... close resumed>) = 0 [pid 5218] +++ exited with 0 +++ [pid 5217] +++ exited with 0 +++ [pid 5056] unlink("./12/binderfs" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5223] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5222] mkdir("./file2", 0777 [pid 5056] <... unlink resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5223] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5056] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5222] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5225 attached [pid 5223] <... clone3 resumed> => {parent_tid=[5225]}, 88) = 5225 [pid 5055] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5225] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5224] munmap(0x7f6dade00000, 138412032 [pid 5223] rt_sigprocmask(SIG_SETMASK, [], [pid 5222] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5225] <... rseq resumed>) = 0 [pid 5224] <... munmap resumed>) = 0 [pid 5223] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5225] set_robust_list(0x7f6db63839a0, 24 [pid 5055] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5225] <... set_robust_list resumed>) = 0 [pid 5223] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5052] <... openat resumed>) = 4 [pid 5225] rt_sigprocmask(SIG_SETMASK, [], [pid 5223] <... futex resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5225] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(4, "", [pid 5225] memfd_create("syzkaller", 0 [pid 5055] getdents64(3, [pid 5225] <... memfd_create resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(4, [pid 5225] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5052] getdents64(4, [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5224] <... openat resumed>) = 4 [pid 5056] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [ 86.979412][ T9] cfg80211: failed to load regulatory.db [ 86.981813][ T5222] loop2: detected capacity change from 0 to 1024 [pid 5055] unlink("./13/binderfs" [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5055] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(4 [pid 5224] ioctl(4, LOOP_SET_FD, 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5222] <... mount resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./12/file2", [pid 5052] rmdir("./12/file2") = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5222] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5225] <... write resumed>) = 524288 [pid 5222] <... openat resumed>) = 3 [pid 5056] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5222] chdir("./file2") = 0 [pid 5056] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = 0 [pid 5222] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... openat resumed>) = 4 [pid 5222] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] close(3 [pid 5222] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5220] <... futex resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5052] <... close resumed>) = 0 [pid 5222] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5220] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5220] <... futex resumed>) = 0 [pid 5222] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] rmdir("./12" [pid 5056] getdents64(4, [pid 5052] <... rmdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] mkdir("./13", 0777 [pid 5056] getdents64(4, [pid 5052] <... mkdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5056] close(4 [pid 5055] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5056] rmdir("./12/file2" [pid 5055] newfstatat(AT_FDCWD, "./13/file2", [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] getdents64(3, [pid 5055] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] close(3 [pid 5055] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5056] rmdir("./12" [pid 5055] newfstatat(4, "", [pid 5225] munmap(0x7f6dade00000, 138412032 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5225] <... munmap resumed>) = 0 [pid 5056] mkdir("./13", 0777 [pid 5055] getdents64(4, [pid 5225] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5222] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5225] <... openat resumed>) = 4 [pid 5224] <... ioctl resumed>) = 0 [pid 5225] ioctl(4, LOOP_SET_FD, 3 [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5224] close(3 [pid 5055] close(4 [pid 5222] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5222] <... futex resumed>) = 1 [pid 5220] <... futex resumed>) = 0 [pid 5222] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5220] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5220] <... futex resumed>) = 0 [pid 5222] memfd_create("syzkaller", 0 [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5224] <... close resumed>) = 0 [pid 5222] <... memfd_create resumed>) = 4 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5224] close(4 [pid 5222] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... openat resumed>) = 3 [pid 5055] rmdir("./13/file2" [pid 5224] <... close resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5224] mkdir("./file2", 0777 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5224] <... mkdir resumed>) = 0 [pid 5055] close(3) = 0 [pid 5055] rmdir("./13") = 0 [pid 5055] mkdir("./14", 0777) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5224] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5225] <... ioctl resumed>) = 0 [pid 5224] <... mount resumed>) = 0 [pid 5222] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5052] <... ioctl resumed>) = 0 [pid 5225] close(3) = 0 [pid 5052] close(3 [pid 5225] close(4) = 0 [pid 5052] <... close resumed>) = 0 [pid 5225] mkdir("./file2", 0777) = 0 [pid 5224] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5225] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5224] <... openat resumed>) = 3 [pid 5056] <... ioctl resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5226 attached [pid 5224] chdir("./file2" [pid 5226] set_robust_list(0x555556b376a0, 24 [pid 5224] <... chdir resumed>) = 0 [pid 5056] close(3) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5226] <... set_robust_list resumed>) = 0 [pid 5226] chdir("./13" [pid 5224] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5226 [ 87.022926][ T5224] loop0: detected capacity change from 0 to 1024 [ 87.052241][ T5225] loop3: detected capacity change from 0 to 1024 [pid 5226] <... chdir resumed>) = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5224] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5227 attached [pid 5226] <... prctl resumed>) = 0 [pid 5224] <... futex resumed>) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5226] setpgid(0, 0 [pid 5224] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5221] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... setpgid resumed>) = 0 [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5221] <... futex resumed>) = 0 [pid 5226] <... openat resumed>) = 3 [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5227] set_robust_list(0x555556b376a0, 24 [pid 5226] write(3, "1000", 4 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5227 [pid 5227] <... set_robust_list resumed>) = 0 [pid 5226] <... write resumed>) = 4 [pid 5225] <... mount resumed>) = 0 [pid 5224] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5222] <... write resumed>) = 524288 [pid 5055] close(3 [pid 5227] chdir("./13" [pid 5224] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5226] close(3 [pid 5224] <... futex resumed>) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5221] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... close resumed>) = 0 [pid 5225] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5224] memfd_create("syzkaller", 0 [pid 5221] <... futex resumed>) = 0 [pid 5227] <... chdir resumed>) = 0 [pid 5226] symlink("/dev/binderfs", "./binderfs" [pid 5225] <... openat resumed>) = 3 [pid 5222] munmap(0x7f6dade00000, 138412032 [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5228 attached [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5226] <... symlink resumed>) = 0 [pid 5225] chdir("./file2" [pid 5222] <... munmap resumed>) = 0 [pid 5228] set_robust_list(0x555556b376a0, 24 [pid 5227] <... prctl resumed>) = 0 [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... chdir resumed>) = 0 [pid 5228] <... set_robust_list resumed>) = 0 [pid 5227] setpgid(0, 0 [pid 5226] <... futex resumed>) = 0 [pid 5225] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5224] <... memfd_create resumed>) = 4 [pid 5228] chdir("./14" [pid 5227] <... setpgid resumed>) = 0 [pid 5226] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5225] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5222] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5228] <... chdir resumed>) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5226] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5225] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5228 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5226] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5225] <... futex resumed>) = 1 [pid 5224] <... mmap resumed>) = 0x7f6dade00000 [pid 5223] <... futex resumed>) = 0 [pid 5222] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5228] <... prctl resumed>) = 0 [pid 5227] <... openat resumed>) = 3 [pid 5226] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5225] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5223] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] setpgid(0, 0 [pid 5226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5223] <... futex resumed>) = 0 [pid 5226] <... mmap resumed>) = 0x7f6db6363000 [pid 5225] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... setpgid resumed>) = 0 [pid 5222] close(4 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5226] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5228] <... openat resumed>) = 3 [pid 5226] <... mprotect resumed>) = 0 [pid 5225] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5228] write(3, "1000", 4 [pid 5226] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5228] <... write resumed>) = 4 [pid 5225] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... close resumed>) = 0 [pid 5228] close(3) = 0 [pid 5228] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5224] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5227] write(3, "1000", 4) = 4 [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... futex resumed>) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5228] <... futex resumed>) = 0 [pid 5225] memfd_create("syzkaller", 0 [pid 5223] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5225] <... memfd_create resumed>) = 4 [pid 5223] <... futex resumed>) = 0 [pid 5228] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5226] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5225] <... mmap resumed>) = 0x7f6dade00000 [pid 5227] close(3 [pid 5225] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5226] <... clone3 resumed> => {parent_tid=[5229]}, 88) = 5229 [pid 5226] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5229 attached [pid 5228] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5227] <... close resumed>) = 0 [pid 5226] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs" [pid 5229] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5228] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5226] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... rseq resumed>) = 0 [pid 5228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5226] <... futex resumed>) = 0 [pid 5229] set_robust_list(0x7f6db63839a0, 24 [pid 5228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5229] <... set_robust_list resumed>) = 0 [pid 5228] <... mmap resumed>) = 0x7f6db6363000 [pid 5227] <... symlink resumed>) = 0 [pid 5229] rt_sigprocmask(SIG_SETMASK, [], [pid 5228] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5228] <... mprotect resumed>) = 0 [pid 5229] memfd_create("syzkaller", 0 [pid 5228] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... memfd_create resumed>) = 3 [pid 5228] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5227] <... futex resumed>) = 0 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5227] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5225] <... write resumed>) = 524288 [pid 5224] <... write resumed>) = 524288 [pid 5229] <... mmap resumed>) = 0x7f6dade00000 [pid 5227] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5222] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5222] <... futex resumed>) = 1 [pid 5227] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5222] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5230 attached [pid 5229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5228] <... clone3 resumed> => {parent_tid=[5230]}, 88) = 5230 [pid 5227] <... mmap resumed>) = 0x7f6db6363000 [pid 5220] <... futex resumed>) = 0 [pid 5230] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5228] rt_sigprocmask(SIG_SETMASK, [], [pid 5227] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5230] <... rseq resumed>) = 0 [pid 5228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5227] <... mprotect resumed>) = 0 [pid 5230] set_robust_list(0x7f6db63839a0, 24 [pid 5228] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... set_robust_list resumed>) = 0 [pid 5228] <... futex resumed>) = 0 [pid 5227] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5222] <... futex resumed>) = 0 [pid 5220] <... futex resumed>) = 1 [pid 5230] rt_sigprocmask(SIG_SETMASK, [], [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5222] openat(AT_FDCWD, ".", O_RDONLY [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] memfd_create("syzkaller", 0 [pid 5227] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5230] <... memfd_create resumed>) = 3 [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5222] <... openat resumed>) = 4 [pid 5227] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5222] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... mmap resumed>) = 0x7f6dade00000 [pid 5222] <... futex resumed>) = 1 [pid 5220] <... futex resumed>) = 0 [pid 5227] <... clone3 resumed> => {parent_tid=[5231]}, 88) = 5231 [pid 5225] munmap(0x7f6dade00000, 138412032 [pid 5224] munmap(0x7f6dade00000, 138412032 [pid 5222] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5220] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5231 attached [pid 5230] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5229] <... write resumed>) = 524288 [pid 5227] rt_sigprocmask(SIG_SETMASK, [], [pid 5225] <... munmap resumed>) = 0 [pid 5224] <... munmap resumed>) = 0 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5220] <... futex resumed>) = 0 [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5231] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5227] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5222] openat(AT_FDCWD, ".", O_RDONLY [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5231] <... rseq resumed>) = 0 [pid 5227] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5222] <... openat resumed>) = 5 [pid 5224] close(4 [pid 5227] <... futex resumed>) = 0 [pid 5225] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5225] close(4 [pid 5224] <... close resumed>) = 0 [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5231] set_robust_list(0x7f6db63839a0, 24 [pid 5222] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5220] <... futex resumed>) = 0 [pid 5220] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... set_robust_list resumed>) = 0 [pid 5220] <... futex resumed>) = 0 [pid 5231] rt_sigprocmask(SIG_SETMASK, [], [pid 5222] renameat2(5, "./file2", 4, "./file1", 0 [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5231] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5225] <... close resumed>) = 0 [pid 5231] memfd_create("syzkaller", 0 [pid 5222] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] munmap(0x7f6dade00000, 138412032) = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5229] ioctl(4, LOOP_SET_FD, 3 [pid 5231] <... memfd_create resumed>) = 3 [pid 5230] <... write resumed>) = 524288 [pid 5225] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = 1 [pid 5220] <... futex resumed>) = 0 [pid 5230] munmap(0x7f6dade00000, 138412032 [pid 5225] <... futex resumed>) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5230] <... munmap resumed>) = 0 [pid 5225] openat(AT_FDCWD, ".", O_RDONLY [pid 5224] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5220] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... mmap resumed>) = 0x7f6dade00000 [pid 5224] <... futex resumed>) = 1 [pid 5222] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5221] <... futex resumed>) = 0 [pid 5220] <... futex resumed>) = 0 [pid 5225] <... openat resumed>) = 4 [pid 5223] <... futex resumed>) = 0 [pid 5225] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5225] <... futex resumed>) = 0 [pid 5223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5225] openat(AT_FDCWD, ".", O_RDONLY [pid 5223] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... openat resumed>) = 5 [pid 5223] <... futex resumed>) = 0 [pid 5225] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5225] <... futex resumed>) = 0 [pid 5225] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5223] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] renameat2(5, "./file2", 4, "./file1", 0) = -1 ENOENT (No such file or directory) [pid 5223] <... futex resumed>) = 0 [pid 5225] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5225] <... futex resumed>) = 0 [pid 5223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5225] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5223] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5225] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5223] <... futex resumed>) = 0 [pid 5221] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] openat(AT_FDCWD, ".", O_RDONLY [pid 5225] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... futex resumed>) = 0 [pid 5223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5230] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5225] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5224] <... openat resumed>) = 4 [pid 5222] <... futex resumed>) = 0 [pid 5221] <... futex resumed>) = 0 [pid 5220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5222] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] exit_group(0 [pid 5221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... futex resumed>) = 0 [pid 5221] <... futex resumed>) = 0 [pid 5222] <... futex resumed>) = ? [pid 5220] <... exit_group resumed>) = ? [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] +++ exited with 0 +++ [pid 5230] <... openat resumed>) = 4 [pid 5230] ioctl(4, LOOP_SET_FD, 3 [pid 5229] <... ioctl resumed>) = 0 [pid 5223] exit_group(0 [pid 5229] close(3 [pid 5225] <... futex resumed>) = ? [pid 5224] openat(AT_FDCWD, ".", O_RDONLY [pid 5223] <... exit_group resumed>) = ? [pid 5220] +++ exited with 0 +++ [pid 5231] <... write resumed>) = 524288 [pid 5231] munmap(0x7f6dade00000, 138412032 [pid 5229] <... close resumed>) = 0 [pid 5225] +++ exited with 0 +++ [pid 5224] <... openat resumed>) = 5 [pid 5223] +++ exited with 0 +++ [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5220, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5229] close(4 [pid 5224] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5224] <... futex resumed>) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5229] <... close resumed>) = 0 [pid 5224] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... munmap resumed>) = 0 [pid 5229] mkdir("./file2", 0777 [pid 5053] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5229] <... mkdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5229] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] <... futex resumed>) = 0 [pid 5054] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] unlink("./13/binderfs" [pid 5224] renameat2(5, "./file2", 4, "./file1", 0 [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5231] <... openat resumed>) = 4 [pid 5224] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... unlink resumed>) = 0 [pid 5224] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 87.191499][ T5229] loop1: detected capacity change from 0 to 1024 [ 87.215861][ T5230] loop4: detected capacity change from 0 to 1024 [pid 5053] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5231] ioctl(4, LOOP_SET_FD, 3 [pid 5224] <... futex resumed>) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5224] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(3, "", [pid 5231] <... ioctl resumed>) = 0 [pid 5224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5230] <... ioctl resumed>) = 0 [pid 5230] close(3) = 0 [pid 5230] close(4 [pid 5231] close(3 [pid 5224] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5221] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5231] <... close resumed>) = 0 [pid 5224] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5231] close(4 [pid 5224] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(3, [pid 5231] <... close resumed>) = 0 [pid 5230] <... close resumed>) = 0 [pid 5230] mkdir("./file2", 0777) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5230] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5229] <... mount resumed>) = 0 [pid 5231] mkdir("./file2", 0777 [pid 5229] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5224] <... futex resumed>) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5229] <... openat resumed>) = 3 [pid 5229] chdir("./file2") = 0 [pid 5231] <... mkdir resumed>) = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5231] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5229] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5224] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] exit_group(0 [pid 5054] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5229] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5226] <... futex resumed>) = 0 [pid 5221] <... exit_group resumed>) = ? [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5224] <... futex resumed>) = ? [pid 5229] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5226] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] +++ exited with 0 +++ [pid 5054] unlink("./12/binderfs" [pid 5230] <... mount resumed>) = 0 [pid 5229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5226] <... futex resumed>) = 0 [pid 5221] +++ exited with 0 +++ [pid 5230] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [ 87.235142][ T5231] loop5: detected capacity change from 0 to 1024 [pid 5229] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... unlink resumed>) = 0 [pid 5230] <... openat resumed>) = 3 [pid 5229] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5054] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5229] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5226] <... futex resumed>) = 0 [pid 5229] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5226] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5226] <... futex resumed>) = 0 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5230] chdir("./file2" [pid 5229] memfd_create("syzkaller", 0 [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5230] <... chdir resumed>) = 0 [pid 5229] <... memfd_create resumed>) = 4 [pid 5053] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... restart_syscall resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5230] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5229] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] newfstatat(AT_FDCWD, "./13/file2", [pid 5230] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... umount2 resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5230] <... futex resumed>) = 1 [pid 5230] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5053] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5053] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5054] newfstatat(AT_FDCWD, "./12/file2", [pid 5051] newfstatat(3, "", [pid 5053] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] getdents64(4, [pid 5051] getdents64(3, [pid 5054] umount2("./12/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4) = 0 [pid 5053] rmdir("./13/file2" [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... openat resumed>) = 4 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5054] newfstatat(4, "", [pid 5228] <... futex resumed>) = 0 [pid 5053] close(3 [pid 5228] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... close resumed>) = 0 [pid 5230] <... futex resumed>) = 0 [pid 5228] <... futex resumed>) = 1 [pid 5053] rmdir("./13" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] unlink("./13/binderfs" [pid 5230] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] getdents64(4, [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] mkdir("./14", 0777 [pid 5230] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5054] getdents64(4, [pid 5053] <... mkdir resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] close(4 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5054] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5054] rmdir("./12/file2" [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5054] <... rmdir resumed>) = 0 [pid 5230] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5230] <... futex resumed>) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5054] close(3 [pid 5228] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... close resumed>) = 0 [pid 5228] <... futex resumed>) = 0 [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] rmdir("./12") = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5230] memfd_create("syzkaller", 0 [pid 5054] mkdir("./13", 0777 [pid 5230] <... memfd_create resumed>) = 4 [pid 5054] <... mkdir resumed>) = 0 [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5231] <... mount resumed>) = 0 [pid 5230] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5229] <... write resumed>) = 524288 [pid 5051] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5229] munmap(0x7f6dade00000, 138412032) = 0 [pid 5231] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5230] <... write resumed>) = 524288 [pid 5054] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./13/file2", [pid 5230] munmap(0x7f6dade00000, 138412032 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5231] <... openat resumed>) = 3 [pid 5230] <... munmap resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5051] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] close(3 [pid 5231] chdir("./file2" [pid 5230] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5053] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5231] <... chdir resumed>) = 0 [pid 5230] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] <... openat resumed>) = 4 [pid 5231] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5230] close(4 [pid 5051] newfstatat(4, "", ./strace-static-x86_64: Process 5232 attached [pid 5229] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5232 [pid 5232] set_robust_list(0x555556b376a0, 24 [pid 5229] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5232] <... set_robust_list resumed>) = 0 [pid 5229] close(4 [pid 5232] chdir("./14" [pid 5231] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5230] <... close resumed>) = 0 [pid 5229] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5232] <... chdir resumed>) = 0 [pid 5231] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] getdents64(4, [pid 5230] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 1 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(4, [pid 5230] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5231] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] <... futex resumed>) = 0 [pid 5227] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(4 [pid 5232] <... prctl resumed>) = 0 [pid 5228] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... close resumed>) = 0 [pid 5232] setpgid(0, 0 [pid 5231] <... futex resumed>) = 0 [pid 5230] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5228] <... futex resumed>) = 0 [pid 5227] <... futex resumed>) = 1 [pid 5051] rmdir("./13/file2" [pid 5231] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5230] openat(AT_FDCWD, ".", O_RDONLY [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... setpgid resumed>) = 0 [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... rmdir resumed>) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5232] write(3, "1000", 4) = 4 [pid 5230] <... openat resumed>) = 4 [pid 5232] close(3 [pid 5051] getdents64(3, [pid 5232] <... close resumed>) = 0 [pid 5232] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5230] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5231] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... futex resumed>) = 1 [pid 5051] close(3 [pid 5231] <... futex resumed>) = 1 [pid 5230] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... close resumed>) = 0 [pid 5231] memfd_create("syzkaller", 0 [pid 5227] <... futex resumed>) = 0 [pid 5051] rmdir("./13" [pid 5232] <... futex resumed>) = 0 [pid 5231] <... memfd_create resumed>) = 4 [pid 5229] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... futex resumed>) = 0 [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5232] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5229] <... futex resumed>) = 1 [pid 5228] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5232] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5231] <... mmap resumed>) = 0x7f6dade00000 [pid 5230] <... futex resumed>) = 0 [pid 5229] openat(AT_FDCWD, ".", O_RDONLY [pid 5228] <... futex resumed>) = 1 [pid 5226] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] mkdir("./14", 0777 [pid 5232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5230] openat(AT_FDCWD, ".", O_RDONLY [pid 5229] <... openat resumed>) = 4 [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5229] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = 0 [pid 5232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5230] <... openat resumed>) = 5 [pid 5229] <... futex resumed>) = 0 [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5230] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] <... mprotect resumed>) = 0 [pid 5230] <... futex resumed>) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5232] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5228] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... mkdir resumed>) = 0 [pid 5229] <... futex resumed>) = 0 [pid 5228] <... futex resumed>) = 0 [pid 5226] <... futex resumed>) = 1 [pid 5229] openat(AT_FDCWD, ".", O_RDONLY [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] renameat2(5, "./file2", 4, "./file1", 0 [pid 5229] <... openat resumed>) = 5 [pid 5230] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5229] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5229] <... futex resumed>) = 1 [pid 5226] <... futex resumed>) = 0 [pid 5229] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5226] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5226] <... futex resumed>) = 0 [pid 5232] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5229] renameat2(5, "./file2", 4, "./file1", 0 [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5229] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5230] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... futex resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5232] <... clone3 resumed> => {parent_tid=[5233]}, 88) = 5233 [pid 5229] <... futex resumed>) = 1 [pid 5228] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5233 attached [pid 5232] rt_sigprocmask(SIG_SETMASK, [], [pid 5229] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] <... futex resumed>) = 0 [pid 5226] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5233] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5231] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5230] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5228] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... futex resumed>) = 0 [pid 5233] <... rseq resumed>) = 0 [pid 5232] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5226] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5233] set_robust_list(0x7f6db63839a0, 24 [pid 5232] <... futex resumed>) = 0 [pid 5229] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5233] <... set_robust_list resumed>) = 0 [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5229] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] rt_sigprocmask(SIG_SETMASK, [], [pid 5229] <... futex resumed>) = 1 [pid 5226] <... futex resumed>) = 0 [pid 5226] exit_group(0) = ? [pid 5233] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5233] memfd_create("syzkaller", 0) = 3 [pid 5230] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5229] +++ exited with 0 +++ [pid 5226] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5231] <... write resumed>) = 524288 [pid 5230] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... ioctl resumed>) = 0 [pid 5230] <... futex resumed>) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5052] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5230] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] exit_group(0 [pid 5233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5231] munmap(0x7f6dade00000, 138412032 [pid 5230] <... futex resumed>) = ? [pid 5228] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, [pid 5051] <... ioctl resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5231] <... munmap resumed>) = 0 [pid 5052] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5230] +++ exited with 0 +++ [pid 5228] +++ exited with 0 +++ [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5231] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] close(3 [pid 5052] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5054] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5231] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] unlink("./13/binderfs" [pid 5233] <... write resumed>) = 524288 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5052] <... unlink resumed>) = 0 [pid 5233] munmap(0x7f6dade00000, 138412032 [pid 5055] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5233] <... munmap resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./14/binderfs") = 0 [pid 5233] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5233] <... openat resumed>) = 4 [pid 5233] ioctl(4, LOOP_SET_FD, 3 [pid 5052] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5234 attached [pid 5052] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5234 [pid 5234] set_robust_list(0x555556b376a0, 24 [pid 5231] close(4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(3 [pid 5234] <... set_robust_list resumed>) = 0 [pid 5231] <... close resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./13/file2", [pid 5051] <... close resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] chdir("./13" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5234] <... chdir resumed>) = 0 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5052] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5234] <... prctl resumed>) = 0 [pid 5233] close(3) = 0 [pid 5234] setpgid(0, 0 [pid 5233] close(4) = 0 [pid 5233] mkdir("./file2", 0777 [pid 5234] <... setpgid resumed>) = 0 [pid 5233] <... mkdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5235 [pid 5233] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5235 attached [pid 5234] <... openat resumed>) = 3 [pid 5233] <... mount resumed>) = 0 [pid 5231] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... openat resumed>) = 4 [pid 5235] set_robust_list(0x555556b376a0, 24 [pid 5233] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5231] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5234] write(3, "1000", 4 [pid 5052] newfstatat(4, "", [pid 5235] <... set_robust_list resumed>) = 0 [pid 5233] <... openat resumed>) = 3 [pid 5235] chdir("./14" [pid 5234] <... write resumed>) = 4 [pid 5233] chdir("./file2" [pid 5231] openat(AT_FDCWD, ".", O_RDONLY [pid 5227] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5234] close(3 [pid 5231] <... openat resumed>) = 4 [pid 5227] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, [pid 5234] <... close resumed>) = 0 [pid 5231] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] newfstatat(AT_FDCWD, "./14/file2", [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5235] <... chdir resumed>) = 0 [pid 5234] symlink("/dev/binderfs", "./binderfs" [pid 5233] <... chdir resumed>) = 0 [pid 5231] <... futex resumed>) = 0 [pid 5227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(4, [pid 5234] <... symlink resumed>) = 0 [pid 5233] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5231] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5231] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5227] <... futex resumed>) = 0 [pid 5055] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] close(4 [pid 5234] <... futex resumed>) = 0 [pid 5231] openat(AT_FDCWD, ".", O_RDONLY [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5235] <... prctl resumed>) = 0 [pid 5234] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5233] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... openat resumed>) = 5 [pid 5055] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 87.447715][ T5233] loop2: detected capacity change from 0 to 1024 [pid 5052] rmdir("./13/file2" [pid 5235] setpgid(0, 0 [pid 5234] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5233] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5231] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 4 [pid 5052] <... rmdir resumed>) = 0 [pid 5234] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5231] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5052] getdents64(3, [pid 5234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5231] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(4, "", [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5235] <... setpgid resumed>) = 0 [pid 5234] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5233] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5232] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5227] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5234] <... mmap resumed>) = 0x7f6db6363000 [pid 5232] <... futex resumed>) = 0 [pid 5231] renameat2(5, "./file2", 4, "./file1", 0 [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5235] <... openat resumed>) = 3 [pid 5234] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5055] getdents64(4, [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... close resumed>) = 0 [pid 5234] <... mprotect resumed>) = 0 [pid 5233] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5231] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] rmdir("./13" [pid 5235] write(3, "1000", 4 [pid 5234] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5233] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(4, [pid 5234] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5231] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5234] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5231] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(4./strace-static-x86_64: Process 5236 attached [pid 5231] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5227] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5236] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5234] <... clone3 resumed> => {parent_tid=[5236]}, 88) = 5236 [pid 5231] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5227] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] rmdir("./14/file2" [pid 5236] <... rseq resumed>) = 0 [pid 5235] <... write resumed>) = 4 [pid 5234] rt_sigprocmask(SIG_SETMASK, [], [pid 5233] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5231] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5236] set_robust_list(0x7f6db63839a0, 24 [pid 5234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5236] <... set_robust_list resumed>) = 0 [pid 5234] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] rt_sigprocmask(SIG_SETMASK, [], [pid 5234] <... futex resumed>) = 0 [pid 5233] memfd_create("syzkaller", 0 [pid 5232] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5233] <... memfd_create resumed>) = 4 [pid 5232] <... futex resumed>) = 0 [pid 5231] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] exit_group(0 [pid 5236] memfd_create("syzkaller", 0 [pid 5231] <... futex resumed>) = ? [pid 5227] <... exit_group resumed>) = ? [pid 5235] close(3 [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5231] +++ exited with 0 +++ [pid 5227] +++ exited with 0 +++ [pid 5236] <... memfd_create resumed>) = 3 [pid 5235] <... close resumed>) = 0 [pid 5233] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5235] symlink("/dev/binderfs", "./binderfs" [pid 5236] <... mmap resumed>) = 0x7f6dade00000 [pid 5233] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5235] <... symlink resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5052] mkdir("./14", 0777 [pid 5056] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] close(3 [pid 5056] newfstatat(3, "", [pid 5055] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] rmdir("./14" [pid 5056] getdents64(3, [pid 5055] <... rmdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5235] <... futex resumed>) = 0 [pid 5055] mkdir("./15", 0777 [pid 5056] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... mkdir resumed>) = 0 [pid 5236] <... write resumed>) = 524288 [pid 5235] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5235] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5055] <... openat resumed>) = 3 [pid 5235] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] unlink("./13/binderfs" [pid 5052] <... openat resumed>) = 3 [pid 5235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] <... unlink resumed>) = 0 [pid 5235] <... mmap resumed>) = 0x7f6db6363000 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5235] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5235] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5056] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5237]}, 88) = 5237 ./strace-static-x86_64: Process 5237 attached [pid 5235] rt_sigprocmask(SIG_SETMASK, [], [pid 5233] <... write resumed>) = 524288 [pid 5237] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5237] <... rseq resumed>) = 0 [pid 5235] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] set_robust_list(0x7f6db63839a0, 24 [pid 5235] <... futex resumed>) = 0 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5236] munmap(0x7f6dade00000, 138412032) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5237] memfd_create("syzkaller", 0 [pid 5056] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5236] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5233] munmap(0x7f6dade00000, 138412032 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5237] <... memfd_create resumed>) = 3 [pid 5236] <... openat resumed>) = 4 [pid 5233] <... munmap resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./13/file2", [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5236] ioctl(4, LOOP_SET_FD, 3 [pid 5237] <... mmap resumed>) = 0x7f6dade00000 [pid 5237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5233] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5233] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5237] <... write resumed>) = 524288 [pid 5233] close(4 [pid 5056] <... openat resumed>) = 4 [pid 5233] <... close resumed>) = 0 [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./13/file2") = 0 [pid 5052] <... ioctl resumed>) = 0 [pid 5233] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5056] getdents64(3, [pid 5233] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] close(3) = 0 [pid 5056] rmdir("./13" [pid 5237] munmap(0x7f6dade00000, 138412032 [pid 5232] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] close(3 [pid 5052] close(3 [pid 5233] <... futex resumed>) = 0 [pid 5232] <... futex resumed>) = 1 [pid 5233] openat(AT_FDCWD, ".", O_RDONLY [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... close resumed>) = 0 [pid 5233] <... openat resumed>) = 4 [pid 5055] <... close resumed>) = 0 [pid 5233] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5056] mkdir("./14", 0777 [pid 5237] <... munmap resumed>) = 0 [pid 5236] <... ioctl resumed>) = 0 [pid 5233] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5238 attached [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5236] close(3 [pid 5233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5232] <... futex resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... close resumed>) = 0 [pid 5236] close(4) = 0 [pid 5236] mkdir("./file2", 0777) = 0 ./strace-static-x86_64: Process 5239 attached [pid 5236] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5239] set_robust_list(0x555556b376a0, 24 [pid 5238] set_robust_list(0x555556b376a0, 24 [pid 5237] <... openat resumed>) = 4 [ 87.577477][ T5236] loop3: detected capacity change from 0 to 1024 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5233] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] <... openat resumed>) = 3 [pid 5238] <... set_robust_list resumed>) = 0 [pid 5237] ioctl(4, LOOP_SET_FD, 3 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5239 [pid 5239] <... set_robust_list resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5238 [pid 5239] chdir("./14" [pid 5233] <... openat resumed>) = 5 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5233] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5233] renameat2(5, "./file2", 4, "./file1", 0 [pid 5232] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5232] <... futex resumed>) = 0 [pid 5233] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5233] <... futex resumed>) = 0 [pid 5232] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5232] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5232] <... futex resumed>) = 0 [pid 5233] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5233] <... futex resumed>) = 0 [pid 5232] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] exit_group(0 [pid 5233] <... futex resumed>) = ? [pid 5232] <... exit_group resumed>) = ? [pid 5233] +++ exited with 0 +++ [pid 5232] +++ exited with 0 +++ [pid 5239] <... chdir resumed>) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5238] chdir("./15" [pid 5239] <... prctl resumed>) = 0 [pid 5238] <... chdir resumed>) = 0 [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] setpgid(0, 0 [pid 5238] <... prctl resumed>) = 0 [pid 5239] <... setpgid resumed>) = 0 [pid 5238] setpgid(0, 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] <... setpgid resumed>) = 0 [pid 5053] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] <... openat resumed>) = 3 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] <... ioctl resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] write(3, "1000", 4 [pid 5237] close(3 [pid 5238] <... openat resumed>) = 3 [pid 5237] <... close resumed>) = 0 [pid 5239] <... write resumed>) = 4 [pid 5238] write(3, "1000", 4 [pid 5237] close(4 [pid 5053] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5239] close(3 [pid 5238] <... write resumed>) = 4 [pid 5237] <... close resumed>) = 0 [pid 5236] <... mount resumed>) = 0 [pid 5056] <... ioctl resumed>) = 0 [pid 5239] <... close resumed>) = 0 [pid 5238] close(3 [pid 5237] mkdir("./file2", 0777 [pid 5056] close(3 [pid 5053] <... openat resumed>) = 3 [pid 5239] symlink("/dev/binderfs", "./binderfs" [pid 5238] <... close resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] <... symlink resumed>) = 0 [pid 5238] symlink("/dev/binderfs", "./binderfs" [pid 5237] <... mkdir resumed>) = 0 [pid 5236] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5053] newfstatat(3, "", [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... symlink resumed>) = 0 [pid 5237] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5236] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5240 attached [pid 5239] <... futex resumed>) = 0 [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] chdir("./file2" [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5240 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5240] set_robust_list(0x555556b376a0, 24 [pid 5239] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5238] <... futex resumed>) = 0 [pid 5236] <... chdir resumed>) = 0 [pid 5053] getdents64(3, [pid 5240] <... set_robust_list resumed>) = 0 [pid 5239] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5240] chdir("./14" [pid 5239] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5238] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5236] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5240] <... chdir resumed>) = 0 [pid 5239] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5238] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5236] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5236] <... futex resumed>) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5240] <... prctl resumed>) = 0 [pid 5239] <... mmap resumed>) = 0x7f6db6363000 [pid 5238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5236] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5234] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5240] setpgid(0, 0 [pid 5239] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5236] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5234] <... futex resumed>) = 0 [pid 5240] <... setpgid resumed>) = 0 [pid 5239] <... mprotect resumed>) = 0 [pid 5238] <... mmap resumed>) = 0x7f6db6363000 [pid 5236] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 87.631783][ T5237] loop0: detected capacity change from 0 to 1024 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5238] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5237] <... mount resumed>) = 0 [pid 5236] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5053] unlink("./14/binderfs" [pid 5240] <... openat resumed>) = 3 [pid 5239] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5238] <... mprotect resumed>) = 0 [pid 5237] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5236] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... unlink resumed>) = 0 [pid 5238] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5237] <... openat resumed>) = 3 [pid 5239] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5238] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5237] chdir("./file2" [pid 5053] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5237] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5241 attached [pid 5240] write(3, "1000", 4 [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5236] <... futex resumed>) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5236] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5234] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5236] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5234] <... futex resumed>) = 0 [pid 5238] <... clone3 resumed> => {parent_tid=[5242]}, 88) = 5242 [pid 5241] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5237] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] memfd_create("syzkaller", 0 [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5241] <... rseq resumed>) = 0 [pid 5237] <... futex resumed>) = 1 [pid 5236] <... memfd_create resumed>) = 4 [pid 5238] rt_sigprocmask(SIG_SETMASK, [], [pid 5235] <... futex resumed>) = 0 [pid 5241] set_robust_list(0x7f6db63839a0, 24 [pid 5239] <... clone3 resumed> => {parent_tid=[5241]}, 88) = 5241 [pid 5238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5235] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5242 attached [pid 5241] <... set_robust_list resumed>) = 0 [pid 5240] <... write resumed>) = 4 [pid 5239] rt_sigprocmask(SIG_SETMASK, [], [pid 5238] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... mmap resumed>) = 0x7f6dade00000 [pid 5235] <... futex resumed>) = 0 [pid 5242] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5241] rt_sigprocmask(SIG_SETMASK, [], [pid 5240] close(3 [pid 5239] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5238] <... futex resumed>) = 0 [pid 5242] <... rseq resumed>) = 0 [pid 5240] <... close resumed>) = 0 [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] set_robust_list(0x7f6db63839a0, 24 [pid 5241] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5240] symlink("/dev/binderfs", "./binderfs" [pid 5239] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5242] <... set_robust_list resumed>) = 0 [pid 5241] memfd_create("syzkaller", 0 [pid 5240] <... symlink resumed>) = 0 [pid 5242] rt_sigprocmask(SIG_SETMASK, [], [pid 5241] <... memfd_create resumed>) = 3 [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5237] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] <... umount2 resumed>) = 0 [pid 5242] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5240] <... futex resumed>) = 0 [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5237] <... futex resumed>) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5242] memfd_create("syzkaller", 0 [pid 5241] <... mmap resumed>) = 0x7f6dade00000 [pid 5240] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5235] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5242] <... memfd_create resumed>) = 3 [pid 5240] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5240] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5242] <... mmap resumed>) = 0x7f6dade00000 [pid 5240] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5237] memfd_create("syzkaller", 0 [pid 5053] newfstatat(AT_FDCWD, "./14/file2", [pid 5240] <... mmap resumed>) = 0x7f6db6363000 [pid 5240] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5237] <... memfd_create resumed>) = 4 [pid 5236] <... write resumed>) = 524288 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5240] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5240] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5237] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5240] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5053] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5240] <... clone3 resumed> => {parent_tid=[5243]}, 88) = 5243 [pid 5240] rt_sigprocmask(SIG_SETMASK, [], [pid 5053] <... openat resumed>) = 4 [pid 5240] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5240] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(4, "", [pid 5240] <... futex resumed>) = 0 [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5243 attached [pid 5242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5236] munmap(0x7f6dade00000, 138412032 [pid 5053] getdents64(4, [pid 5243] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5237] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5236] <... munmap resumed>) = 0 [pid 5243] <... rseq resumed>) = 0 [pid 5243] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5243] rt_sigprocmask(SIG_SETMASK, [], [pid 5241] <... write resumed>) = 524288 [pid 5243] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5243] memfd_create("syzkaller", 0 [pid 5241] munmap(0x7f6dade00000, 138412032 [pid 5236] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5053] getdents64(4, [pid 5243] <... memfd_create resumed>) = 3 [pid 5241] <... munmap resumed>) = 0 [pid 5237] <... write resumed>) = 524288 [pid 5236] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5236] close(4) = 0 [pid 5053] close(4 [pid 5241] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5053] <... close resumed>) = 0 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5242] <... write resumed>) = 524288 [pid 5241] <... openat resumed>) = 4 [pid 5237] munmap(0x7f6dade00000, 138412032 [pid 5053] rmdir("./14/file2" [pid 5243] <... mmap resumed>) = 0x7f6dade00000 [pid 5241] ioctl(4, LOOP_SET_FD, 3 [pid 5237] <... munmap resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5053] getdents64(3, [pid 5242] munmap(0x7f6dade00000, 138412032 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5242] <... munmap resumed>) = 0 [pid 5242] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5242] ioctl(4, LOOP_SET_FD, 3 [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] close(3 [pid 5243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5237] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... close resumed>) = 0 [pid 5053] rmdir("./14" [pid 5237] close(4 [pid 5236] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5243] <... write resumed>) = 524288 [pid 5241] <... ioctl resumed>) = 0 [pid 5237] <... close resumed>) = 0 [pid 5236] openat(AT_FDCWD, ".", O_RDONLY [pid 5234] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... rmdir resumed>) = 0 [pid 5053] mkdir("./15", 0777 [pid 5236] <... openat resumed>) = 4 [pid 5234] <... futex resumed>) = 0 [pid 5236] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... futex resumed>) = 0 [pid 5234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5236] openat(AT_FDCWD, ".", O_RDONLY [pid 5234] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... openat resumed>) = 5 [pid 5234] <... futex resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5236] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5241] close(3 [pid 5237] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... futex resumed>) = 0 [pid 5234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5241] <... close resumed>) = 0 [pid 5237] <... futex resumed>) = 1 [pid 5236] renameat2(5, "./file2", 4, "./file1", 0 [pid 5235] <... futex resumed>) = 0 [pid 5234] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... openat resumed>) = 3 [pid 5241] close(4 [pid 5237] openat(AT_FDCWD, ".", O_RDONLY [pid 5236] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5235] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... futex resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5241] <... close resumed>) = 0 [pid 5236] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... futex resumed>) = 0 [pid 5241] mkdir("./file2", 0777 [pid 5237] <... openat resumed>) = 4 [pid 5236] <... futex resumed>) = 0 [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5234] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... futex resumed>) = 0 [pid 5234] <... futex resumed>) = 1 [pid 5236] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5234] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5241] <... mkdir resumed>) = 0 [pid 5236] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5237] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5237] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5235] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5234] exit_group(0) = ? [pid 5237] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5235] <... futex resumed>) = 0 [pid 5237] openat(AT_FDCWD, ".", O_RDONLY [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5241] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5237] <... openat resumed>) = 5 [pid 5236] +++ exited with 0 +++ [pid 5234] +++ exited with 0 +++ [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=0} --- [pid 5054] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5237] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5054] newfstatat(3, "", [pid 5237] <... futex resumed>) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5237] renameat2(5, "./file2", 4, "./file1", 0 [pid 5235] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5237] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5235] <... futex resumed>) = 0 [pid 5054] getdents64(3, [pid 5237] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5237] <... futex resumed>) = 0 [pid 5235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5237] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5235] <... futex resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5237] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5235] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5237] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] <... futex resumed>) = 0 [pid 5237] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5235] exit_group(0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5237] <... futex resumed>) = ? [pid 5235] <... exit_group resumed>) = ? [pid 5054] unlink("./13/binderfs" [pid 5237] +++ exited with 0 +++ [pid 5054] <... unlink resumed>) = 0 [pid 5054] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5243] munmap(0x7f6dade00000, 138412032) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5054] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] newfstatat(AT_FDCWD, "./13/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] umount2("./13/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5243] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] <... openat resumed>) = 4 [pid 5243] <... openat resumed>) = 4 [pid 5242] <... ioctl resumed>) = 0 [ 87.755606][ T5241] loop1: detected capacity change from 0 to 1024 [ 87.758070][ T5242] loop4: detected capacity change from 0 to 1024 [pid 5054] newfstatat(4, "", [pid 5243] ioctl(4, LOOP_SET_FD, 3 [pid 5242] close(3 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5241] <... mount resumed>) = 0 [pid 5235] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5054] getdents64(4, [pid 5241] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5241] <... openat resumed>) = 3 [pid 5054] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5242] <... close resumed>) = 0 [pid 5054] close(4 [pid 5241] chdir("./file2" [pid 5054] <... close resumed>) = 0 [pid 5241] <... chdir resumed>) = 0 [pid 5054] rmdir("./13/file2" [pid 5241] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5054] <... rmdir resumed>) = 0 [pid 5054] getdents64(3, [pid 5051] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5241] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5241] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] close(3 [pid 5051] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5241] <... futex resumed>) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5241] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5239] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] rmdir("./13" [pid 5051] newfstatat(3, "", [pid 5242] close(4 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5242] <... close resumed>) = 0 [pid 5054] mkdir("./14", 0777 [pid 5051] getdents64(3, [pid 5242] mkdir("./file2", 0777 [pid 5054] <... mkdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5242] <... mkdir resumed>) = 0 [pid 5051] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5242] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] <... futex resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./14/binderfs") = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5242] <... mount resumed>) = 0 [pid 5241] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5054] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = 0 [pid 5242] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5242] <... openat resumed>) = 3 [pid 5242] chdir("./file2") = 0 [pid 5242] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5243] <... ioctl resumed>) = 0 [pid 5242] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5243] close(3 [pid 5242] <... futex resumed>) = 1 [pid 5243] <... close resumed>) = 0 [pid 5242] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] newfstatat(AT_FDCWD, "./14/file2", [pid 5243] close(4) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5243] mkdir("./file2", 0777) = 0 [pid 5051] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, [pid 5243] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5241] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... futex resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5241] <... futex resumed>) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5238] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5242] <... futex resumed>) = 0 [pid 5238] <... futex resumed>) = 1 [pid 5051] getdents64(4, [pid 5241] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5242] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5239] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5243] <... mount resumed>) = 0 [pid 5242] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5239] <... futex resumed>) = 0 [pid 5053] close(3 [pid 5051] close(4 [pid 5241] memfd_create("syzkaller", 0 [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5243] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5241] <... memfd_create resumed>) = 4 [pid 5051] <... close resumed>) = 0 [pid 5243] <... openat resumed>) = 3 [pid 5242] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] rmdir("./14/file2" [pid 5243] chdir("./file2" [pid 5242] <... futex resumed>) = 1 [pid 5241] <... mmap resumed>) = 0x7f6dade00000 [pid 5238] <... futex resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5243] <... chdir resumed>) = 0 [pid 5242] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5238] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5242] memfd_create("syzkaller", 0 [pid 5243] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5242] <... memfd_create resumed>) = 4 [ 87.800264][ T5243] loop5: detected capacity change from 0 to 1024 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5243] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(3, [pid 5243] <... futex resumed>) = 1 [pid 5242] <... mmap resumed>) = 0x7f6dade00000 [pid 5240] <... futex resumed>) = 0 [pid 5243] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5240] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5242] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5241] <... write resumed>) = 524288 [pid 5240] <... futex resumed>) = 0 [pid 5243] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] close(3 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 [pid 5051] rmdir("./14") = 0 [pid 5051] mkdir("./15", 0777) = 0 ./strace-static-x86_64: Process 5244 attached [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5243] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5244] set_robust_list(0x555556b376a0, 24 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5244 [pid 5244] <... set_robust_list resumed>) = 0 [pid 5243] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] chdir("./15" [pid 5242] <... write resumed>) = 524288 [pid 5243] <... futex resumed>) = 1 [pid 5240] <... futex resumed>) = 0 [pid 5240] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5243] memfd_create("syzkaller", 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5243] <... memfd_create resumed>) = 4 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5242] munmap(0x7f6dade00000, 138412032 [pid 5244] <... chdir resumed>) = 0 [pid 5241] munmap(0x7f6dade00000, 138412032 [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5242] <... munmap resumed>) = 0 [pid 5241] <... munmap resumed>) = 0 [pid 5242] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5054] close(3 [pid 5242] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... close resumed>) = 0 [pid 5244] <... prctl resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5242] close(4 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5244] setpgid(0, 0 [pid 5243] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5242] <... close resumed>) = 0 [pid 5241] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5244] <... setpgid resumed>) = 0 [pid 5241] close(4./strace-static-x86_64: Process 5245 attached [pid 5245] set_robust_list(0x555556b376a0, 24 [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5245] <... set_robust_list resumed>) = 0 [pid 5244] <... openat resumed>) = 3 [pid 5243] <... write resumed>) = 524288 [pid 5244] write(3, "1000", 4 [pid 5245] chdir("./14" [pid 5241] <... close resumed>) = 0 [pid 5245] <... chdir resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5245 [pid 5244] <... write resumed>) = 4 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5244] close(3 [pid 5241] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... close resumed>) = 0 [pid 5239] <... futex resumed>) = 0 [pid 5241] <... futex resumed>) = 1 [pid 5244] symlink("/dev/binderfs", "./binderfs" [pid 5241] openat(AT_FDCWD, ".", O_RDONLY [pid 5239] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... prctl resumed>) = 0 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] setpgid(0, 0 [pid 5244] <... symlink resumed>) = 0 [pid 5242] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... openat resumed>) = 4 [pid 5245] <... setpgid resumed>) = 0 [pid 5242] <... futex resumed>) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5242] openat(AT_FDCWD, ".", O_RDONLY [pid 5241] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5245] <... openat resumed>) = 3 [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5242] <... openat resumed>) = 4 [pid 5241] openat(AT_FDCWD, ".", O_RDONLY [pid 5239] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... futex resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5244] <... futex resumed>) = 0 [pid 5239] <... futex resumed>) = 0 [pid 5245] write(3, "1000", 4 [pid 5244] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5243] munmap(0x7f6dade00000, 138412032 [pid 5242] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... openat resumed>) = 5 [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] <... write resumed>) = 4 [pid 5244] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5243] <... munmap resumed>) = 0 [pid 5242] <... futex resumed>) = 0 [pid 5241] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5245] close(3 [pid 5244] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5242] openat(AT_FDCWD, ".", O_RDONLY [pid 5241] <... futex resumed>) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5238] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... close resumed>) = 0 [pid 5244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5242] <... openat resumed>) = 5 [pid 5241] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5239] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... futex resumed>) = 0 [pid 5245] symlink("/dev/binderfs", "./binderfs" [pid 5244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5242] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5239] <... futex resumed>) = 0 [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] <... symlink resumed>) = 0 [pid 5244] <... mmap resumed>) = 0x7f6db6363000 [pid 5242] <... futex resumed>) = 0 [pid 5238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5243] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5242] renameat2(5, "./file2", 4, "./file1", 0 [pid 5241] renameat2(5, "./file2", 4, "./file1", 0 [pid 5238] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(3 [pid 5245] <... futex resumed>) = 0 [pid 5244] <... mprotect resumed>) = 0 [pid 5243] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5242] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5241] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5238] <... futex resumed>) = 0 [pid 5245] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5244] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5243] close(4 [pid 5242] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5241] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... close resumed>) = 0 [pid 5245] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5244] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5242] <... futex resumed>) = 0 [pid 5245] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5242] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5238] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5243] <... close resumed>) = 0 [pid 5242] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5238] <... futex resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5246 [pid 5245] <... mmap resumed>) = 0x7f6db6363000 [pid 5242] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5238] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5245] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5242] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5238] exit_group(0 [pid 5245] <... mprotect resumed>) = 0 [pid 5243] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5242] <... futex resumed>) = ? [pid 5238] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5246 attached [pid 5245] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5244] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5243] <... futex resumed>) = 1 [pid 5242] +++ exited with 0 +++ [pid 5241] <... futex resumed>) = 1 [pid 5240] <... futex resumed>) = 0 [pid 5239] <... futex resumed>) = 0 [pid 5238] +++ exited with 0 +++ [pid 5240] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] set_robust_list(0x555556b376a0, 24 [pid 5239] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... clone3 resumed> => {parent_tid=[5247]}, 88) = 5247 [pid 5241] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5244] rt_sigprocmask(SIG_SETMASK, [], [pid 5241] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5239] <... futex resumed>) = 0 [pid 5246] <... set_robust_list resumed>) = 0 [pid 5244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5241] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] <... futex resumed>) = 0 [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5247 attached [pid 5245] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5243] openat(AT_FDCWD, ".", O_RDONLY [pid 5246] chdir("./15" [pid 5247] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5245] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5239] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5247] <... rseq resumed>) = 0 [pid 5243] <... openat resumed>) = 4 [pid 5247] set_robust_list(0x7f6db63839a0, 24 [pid 5243] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5247] <... set_robust_list resumed>) = 0 [pid 5245] <... clone3 resumed> => {parent_tid=[5248]}, 88) = 5248 [pid 5243] <... futex resumed>) = 1 [pid 5240] <... futex resumed>) = 0 [pid 5239] exit_group(0 [pid 5247] rt_sigprocmask(SIG_SETMASK, [], [pid 5246] <... chdir resumed>) = 0 [pid 5245] rt_sigprocmask(SIG_SETMASK, [], [pid 5240] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... exit_group resumed>) = ? [pid 5241] <... futex resumed>) = ? ./strace-static-x86_64: Process 5248 attached [pid 5247] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5243] openat(AT_FDCWD, ".", O_RDONLY [pid 5241] +++ exited with 0 +++ [pid 5240] <... futex resumed>) = 0 [pid 5055] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5247] memfd_create("syzkaller", 0 [pid 5245] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... openat resumed>) = 5 [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5247] <... memfd_create resumed>) = 3 [pid 5246] <... prctl resumed>) = 0 [pid 5245] <... futex resumed>) = 0 [pid 5243] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5246] setpgid(0, 0 [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5243] <... futex resumed>) = 0 [pid 5240] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5248] <... rseq resumed>) = 0 [pid 5247] <... mmap resumed>) = 0x7f6dade00000 [pid 5243] renameat2(5, "./file2", 4, "./file1", 0 [pid 5240] <... futex resumed>) = 0 [pid 5248] set_robust_list(0x7f6db63839a0, 24 [pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5246] <... setpgid resumed>) = 0 [pid 5243] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5239] +++ exited with 0 +++ [pid 5055] <... openat resumed>) = 3 [pid 5248] <... set_robust_list resumed>) = 0 [pid 5243] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] rt_sigprocmask(SIG_SETMASK, [], [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5243] <... futex resumed>) = 1 [pid 5240] <... futex resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5248] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5240] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5248] memfd_create("syzkaller", 0 [pid 5240] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5248] <... memfd_create resumed>) = 3 [pid 5243] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5240] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5246] <... openat resumed>) = 3 [pid 5243] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5248] <... mmap resumed>) = 0x7f6dade00000 [pid 5243] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5240] <... futex resumed>) = 0 [pid 5052] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5247] <... write resumed>) = 524288 [pid 5246] write(3, "1000", 4 [pid 5243] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5240] exit_group(0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5240] <... exit_group resumed>) = ? [pid 5246] <... write resumed>) = 4 [pid 5052] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5246] close(3 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5248] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5246] <... close resumed>) = 0 [pid 5243] <... futex resumed>) = ? [pid 5055] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5246] symlink("/dev/binderfs", "./binderfs" [pid 5243] +++ exited with 0 +++ [pid 5240] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(3, "", [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5246] <... symlink resumed>) = 0 [pid 5056] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5056] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5246] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(3, [pid 5056] newfstatat(3, "", [pid 5055] unlink("./15/binderfs" [pid 5246] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5056] getdents64(3, [pid 5246] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] <... unlink resumed>) = 0 [pid 5052] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5246] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5246] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5246] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5052] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5246] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5246] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5056] unlink("./14/binderfs" [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5247] munmap(0x7f6dade00000, 138412032 [pid 5246] <... mprotect resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5052] unlink("./14/binderfs" [pid 5247] <... munmap resumed>) = 0 [pid 5056] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5247] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5246] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5247] <... openat resumed>) = 4 [pid 5052] <... unlink resumed>) = 0 [pid 5247] ioctl(4, LOOP_SET_FD, 3 [pid 5246] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5052] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] <... write resumed>) = 524288 [pid 5248] munmap(0x7f6dade00000, 138412032 [pid 5246] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5248] <... munmap resumed>) = 0 [pid 5246] <... clone3 resumed> => {parent_tid=[5249]}, 88) = 5249 ./strace-static-x86_64: Process 5249 attached [pid 5248] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5246] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5246] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5249] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5248] <... openat resumed>) = 4 [pid 5246] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... rseq resumed>) = 0 [pid 5248] ioctl(4, LOOP_SET_FD, 3 [pid 5246] <... futex resumed>) = 0 [pid 5249] set_robust_list(0x7f6db63839a0, 24 [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./15/file2", [pid 5249] <... set_robust_list resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] rt_sigprocmask(SIG_SETMASK, [], [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] newfstatat(AT_FDCWD, "./14/file2", [pid 5249] memfd_create("syzkaller", 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] <... memfd_create resumed>) = 3 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5056] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./14/file2", [pid 5052] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5056] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(4, "", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(4, [pid 5056] <... openat resumed>) = 4 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5247] <... ioctl resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5052] <... close resumed>) = 0 [pid 5247] close(3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] rmdir("./14/file2" [pid 5249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5247] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5247] close(4 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5247] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5247] mkdir("./file2", 0777 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5247] <... mkdir resumed>) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./14/file2") = 0 [pid 5056] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5247] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5056] close(3 [pid 5052] getdents64(3, [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./14" [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5247] <... mount resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5052] close(3 [pid 5247] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5056] mkdir("./15", 0777 [pid 5052] <... close resumed>) = 0 [pid 5247] <... openat resumed>) = 3 [pid 5056] <... mkdir resumed>) = 0 [pid 5052] rmdir("./14" [pid 5247] chdir("./file2" [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5247] <... chdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5052] <... rmdir resumed>) = 0 [pid 5247] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5247] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] mkdir("./15", 0777) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5247] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5055] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5244] <... futex resumed>) = 0 [pid 5247] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5248] <... ioctl resumed>) = 0 [pid 5249] <... write resumed>) = 524288 [pid 5244] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 4 [pid 5249] munmap(0x7f6dade00000, 138412032 [pid 5248] close(3 [pid 5247] <... futex resumed>) = 0 [pid 5244] <... futex resumed>) = 1 [pid 5055] newfstatat(4, "", [pid 5249] <... munmap resumed>) = 0 [pid 5248] <... close resumed>) = 0 [pid 5247] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5248] close(4) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] close(4 [pid 5249] <... openat resumed>) = 4 [pid 5248] mkdir("./file2", 0777 [pid 5055] <... close resumed>) = 0 [ 88.001687][ T5247] loop2: detected capacity change from 0 to 1024 [ 88.022139][ T5248] loop3: detected capacity change from 0 to 1024 [pid 5249] ioctl(4, LOOP_SET_FD, 3 [pid 5247] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5055] rmdir("./15/file2" [pid 5249] <... ioctl resumed>) = 0 [pid 5248] <... mkdir resumed>) = 0 [pid 5248] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "") = 0 [pid 5248] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5055] <... rmdir resumed>) = 0 [pid 5247] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5248] <... openat resumed>) = 3 [pid 5248] chdir("./file2") = 0 [pid 5248] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5247] <... futex resumed>) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5244] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3 [pid 5247] memfd_create("syzkaller", 0 [pid 5248] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5248] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5247] <... memfd_create resumed>) = 4 [pid 5244] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] rmdir("./15" [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5248] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5247] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] <... rmdir resumed>) = 0 [pid 5249] close(3 [pid 5248] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5249] <... close resumed>) = 0 [pid 5249] close(4) = 0 [pid 5249] mkdir("./file2", 0777 [pid 5247] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5248] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... ioctl resumed>) = 0 [pid 5055] mkdir("./16", 0777 [pid 5052] <... ioctl resumed>) = 0 [pid 5249] <... mkdir resumed>) = 0 [pid 5248] <... futex resumed>) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5248] memfd_create("syzkaller", 0 [pid 5245] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... mkdir resumed>) = 0 [pid 5248] <... memfd_create resumed>) = 4 [pid 5247] <... write resumed>) = 524288 [pid 5245] <... futex resumed>) = 0 [pid 5056] close(3 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5249] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... close resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5052] close(3 [pid 5248] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5247] munmap(0x7f6dade00000, 138412032 [pid 5248] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5247] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5250 attached [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5250 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5251 ./strace-static-x86_64: Process 5251 attached [pid 5250] set_robust_list(0x555556b376a0, 24 [pid 5247] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5251] set_robust_list(0x555556b376a0, 24 [pid 5247] close(4 [pid 5250] <... set_robust_list resumed>) = 0 [pid 5250] chdir("./15" [pid 5251] <... set_robust_list resumed>) = 0 [pid 5250] <... chdir resumed>) = 0 [ 88.067045][ T5249] loop0: detected capacity change from 0 to 1024 [pid 5251] chdir("./15" [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] <... close resumed>) = 0 [pid 5251] <... chdir resumed>) = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5248] <... write resumed>) = 524288 [pid 5247] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... prctl resumed>) = 0 [pid 5244] <... futex resumed>) = 0 [pid 5251] setpgid(0, 0 [pid 5247] <... futex resumed>) = 1 [pid 5244] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] <... setpgid resumed>) = 0 [pid 5247] openat(AT_FDCWD, ".", O_RDONLY [pid 5250] <... prctl resumed>) = 0 [pid 5250] setpgid(0, 0) = 0 [pid 5248] munmap(0x7f6dade00000, 138412032 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5248] <... munmap resumed>) = 0 [pid 5247] <... openat resumed>) = 4 [pid 5247] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... openat resumed>) = 3 [pid 5247] <... futex resumed>) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5251] write(3, "1000", 4 [pid 5247] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5244] <... futex resumed>) = 0 [pid 5251] <... write resumed>) = 4 [pid 5247] openat(AT_FDCWD, ".", O_RDONLY [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] close(3 [pid 5249] <... mount resumed>) = 0 [pid 5251] <... close resumed>) = 0 [pid 5249] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5248] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5247] <... openat resumed>) = 5 [pid 5251] symlink("/dev/binderfs", "./binderfs" [pid 5249] <... openat resumed>) = 3 [pid 5248] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5247] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] chdir("./file2" [pid 5248] close(4 [pid 5251] <... symlink resumed>) = 0 [pid 5249] <... chdir resumed>) = 0 [pid 5247] <... futex resumed>) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5244] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5249] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5247] renameat2(5, "./file2", 4, "./file1", 0 [pid 5246] <... futex resumed>) = 0 [pid 5249] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5247] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5246] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... close resumed>) = 0 [pid 5246] <... futex resumed>) = 0 [pid 5248] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... openat resumed>) = 3 [pid 5248] <... futex resumed>) = 1 [pid 5247] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] <... futex resumed>) = 0 [pid 5248] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5245] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5245] <... futex resumed>) = 0 [pid 5248] openat(AT_FDCWD, ".", O_RDONLY [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] write(3, "1000", 4 [pid 5248] <... openat resumed>) = 4 [pid 5247] <... futex resumed>) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5251] <... futex resumed>) = 0 [pid 5250] <... write resumed>) = 4 [pid 5248] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5248] <... futex resumed>) = 1 [pid 5251] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5250] close(3 [pid 5249] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5248] openat(AT_FDCWD, ".", O_RDONLY [pid 5247] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5245] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... futex resumed>) = 0 [pid 5251] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5250] <... close resumed>) = 0 [pid 5249] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5245] <... futex resumed>) = 0 [pid 5244] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5249] <... futex resumed>) = 1 [pid 5248] <... openat resumed>) = 5 [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5250] symlink("/dev/binderfs", "./binderfs" [pid 5249] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5248] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] <... futex resumed>) = 0 [pid 5245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] close(3 [pid 5251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5250] <... symlink resumed>) = 0 [pid 5248] <... futex resumed>) = 0 [pid 5247] <... futex resumed>) = 1 [pid 5246] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5249] <... futex resumed>) = 0 [pid 5248] renameat2(5, "./file2", 4, "./file1", 0 [pid 5246] <... futex resumed>) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5249] memfd_create("syzkaller", 0 [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] <... memfd_create resumed>) = 4 [pid 5251] <... mmap resumed>) = 0x7f6db6363000 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5248] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5247] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] <... futex resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5252 attached [pid 5251] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... mmap resumed>) = 0x7f6dade00000 [pid 5248] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] exit_group(0 [pid 5251] <... mprotect resumed>) = 0 [pid 5248] <... futex resumed>) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5251] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5250] <... futex resumed>) = 0 [pid 5248] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5247] <... futex resumed>) = ? [pid 5245] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... exit_group resumed>) = ? [pid 5251] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5250] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5248] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5247] +++ exited with 0 +++ [pid 5245] <... futex resumed>) = 0 [pid 5244] +++ exited with 0 +++ [pid 5252] set_robust_list(0x555556b376a0, 24 [pid 5251] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5250] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5248] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5252] <... set_robust_list resumed>) = 0 [pid 5250] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5248] <... futex resumed>) = 0 [pid 5245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5252 ./strace-static-x86_64: Process 5253 attached [pid 5252] chdir("./16" [pid 5251] <... clone3 resumed> => {parent_tid=[5253]}, 88) = 5253 [pid 5250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5249] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5248] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5245] exit_group(0 [pid 5253] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5252] <... chdir resumed>) = 0 [pid 5251] rt_sigprocmask(SIG_SETMASK, [], [pid 5250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5248] <... futex resumed>) = ? [pid 5245] <... exit_group resumed>) = ? [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5250] <... mmap resumed>) = 0x7f6db6363000 [pid 5248] +++ exited with 0 +++ [pid 5253] <... rseq resumed>) = 0 [pid 5252] <... prctl resumed>) = 0 [pid 5251] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5245] +++ exited with 0 +++ [pid 5253] set_robust_list(0x7f6db63839a0, 24 [pid 5252] setpgid(0, 0 [pid 5251] <... futex resumed>) = 0 [pid 5250] <... mprotect resumed>) = 0 [pid 5249] <... write resumed>) = 524288 [pid 5053] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5253] <... set_robust_list resumed>) = 0 [pid 5252] <... setpgid resumed>) = 0 [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5250] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5053] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5253] rt_sigprocmask(SIG_SETMASK, [], [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5250] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5249] munmap(0x7f6dade00000, 138412032 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5054] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5253] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] memfd_create("syzkaller", 0 [pid 5054] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5252] <... openat resumed>) = 3 [pid 5054] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] <... memfd_create resumed>) = 3 [pid 5054] getdents64(3, [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5249] <... munmap resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5252] write(3, "1000", 4) = 4 [pid 5253] <... mmap resumed>) = 0x7f6dade00000 [pid 5252] close(3 [pid 5054] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] <... close resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5254 attached [pid 5053] newfstatat(3, "", [pid 5252] symlink("/dev/binderfs", "./binderfs" [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5250] <... clone3 resumed> => {parent_tid=[5254]}, 88) = 5254 [pid 5054] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] <... symlink resumed>) = 0 [pid 5250] rt_sigprocmask(SIG_SETMASK, [], [pid 5249] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] close(4 [pid 5053] getdents64(3, [pid 5250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5252] <... futex resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5054] unlink("./14/binderfs" [pid 5252] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5254] <... rseq resumed>) = 0 [pid 5252] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5250] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... unlink resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5254] set_robust_list(0x7f6db63839a0, 24 [pid 5252] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5250] <... futex resumed>) = 0 [pid 5054] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5254] <... set_robust_list resumed>) = 0 [pid 5252] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5254] rt_sigprocmask(SIG_SETMASK, [], [pid 5053] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] memfd_create("syzkaller", 0 [pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5252] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5254] <... memfd_create resumed>) = 3 [pid 5253] <... write resumed>) = 524288 [pid 5252] <... mmap resumed>) = 0x7f6db6363000 [pid 5249] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = 0 [pid 5053] unlink("./15/binderfs" [pid 5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5249] <... futex resumed>) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5246] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... mmap resumed>) = 0x7f6dade00000 [pid 5252] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5252] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5249] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5249] <... openat resumed>) = 4 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] <... clone3 resumed> => {parent_tid=[5255]}, 88) = 5255 [pid 5249] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(AT_FDCWD, "./14/file2", [pid 5254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5252] rt_sigprocmask(SIG_SETMASK, [], [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5255 attached [pid 5252] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5249] <... futex resumed>) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5253] munmap(0x7f6dade00000, 138412032 [pid 5054] umount2("./14/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5255] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5253] <... munmap resumed>) = 0 [pid 5252] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5246] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5255] <... rseq resumed>) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5252] <... futex resumed>) = 0 [pid 5249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5246] <... futex resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5255] set_robust_list(0x7f6db63839a0, 24 [pid 5253] <... openat resumed>) = 4 [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5255] <... set_robust_list resumed>) = 0 [pid 5253] ioctl(4, LOOP_SET_FD, 3 [pid 5249] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] <... openat resumed>) = 4 [pid 5255] rt_sigprocmask(SIG_SETMASK, [], [pid 5249] <... openat resumed>) = 5 [pid 5054] newfstatat(4, "", [pid 5053] <... umount2 resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5249] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(4, [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5249] <... futex resumed>) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] newfstatat(AT_FDCWD, "./15/file2", [pid 5254] <... write resumed>) = 524288 [pid 5249] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5054] getdents64(4, [pid 5255] memfd_create("syzkaller", 0 [pid 5254] munmap(0x7f6dade00000, 138412032 [pid 5249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5246] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] renameat2(5, "./file2", 4, "./file1", 0 [pid 5054] close(4 [pid 5249] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5246] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5249] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] rmdir("./14/file2" [pid 5246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5255] <... memfd_create resumed>) = 3 [pid 5246] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... rmdir resumed>) = 0 [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5246] <... futex resumed>) = 0 [pid 5254] <... munmap resumed>) = 0 [pid 5054] getdents64(3, [pid 5249] <... futex resumed>) = 0 [pid 5053] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5255] <... mmap resumed>) = 0x7f6dade00000 [pid 5249] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5246] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5054] close(3 [pid 5053] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] <... close resumed>) = 0 [pid 5255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5254] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5249] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] rmdir("./14" [pid 5053] <... openat resumed>) = 4 [pid 5253] <... ioctl resumed>) = 0 [pid 5255] <... write resumed>) = 524288 [pid 5254] <... openat resumed>) = 4 [pid 5253] close(3 [pid 5249] <... futex resumed>) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5053] newfstatat(4, "", [pid 5255] munmap(0x7f6dade00000, 138412032 [pid 5254] ioctl(4, LOOP_SET_FD, 3 [pid 5253] <... close resumed>) = 0 [pid 5249] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5246] exit_group(0 [pid 5054] mkdir("./15", 0777 [pid 5255] <... munmap resumed>) = 0 [pid 5253] close(4 [pid 5246] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] <... close resumed>) = 0 [pid 5253] mkdir("./file2", 0777 [pid 5255] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5254] <... ioctl resumed>) = 0 [pid 5253] <... mkdir resumed>) = 0 [pid 5249] <... futex resumed>) = ? [pid 5054] <... mkdir resumed>) = 0 [pid 5053] getdents64(4, [pid 5255] <... openat resumed>) = 4 [ 88.251283][ T5253] loop1: detected capacity change from 0 to 1024 [ 88.287356][ T5254] loop5: detected capacity change from 0 to 1024 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5255] ioctl(4, LOOP_SET_FD, 3 [pid 5254] close(3 [pid 5253] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5249] +++ exited with 0 +++ [pid 5246] +++ exited with 0 +++ [pid 5054] <... openat resumed>) = 3 [pid 5053] getdents64(4, [pid 5254] <... close resumed>) = 0 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5254] close(4 [pid 5053] close(4 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5254] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5254] mkdir("./file2", 0777 [pid 5053] rmdir("./15/file2" [pid 5255] <... ioctl resumed>) = 0 [pid 5254] <... mkdir resumed>) = 0 [pid 5253] <... mount resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5051] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5053] getdents64(3, [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5254] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5253] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5053] close(3) = 0 [pid 5051] unlink("./15/binderfs" [pid 5253] <... openat resumed>) = 3 [pid 5053] rmdir("./15" [pid 5051] <... unlink resumed>) = 0 [pid 5051] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... rmdir resumed>) = 0 [pid 5053] mkdir("./16", 0777 [pid 5255] close(3) = 0 [pid 5255] close(4) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5255] mkdir("./file2", 0777) = 0 [pid 5254] <... mount resumed>) = 0 [pid 5253] chdir("./file2" [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... umount2 resumed>) = 0 [pid 5253] <... chdir resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5253] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5253] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5253] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] newfstatat(AT_FDCWD, "./15/file2", [pid 5254] <... openat resumed>) = 3 [pid 5254] chdir("./file2" [pid 5255] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5254] <... chdir resumed>) = 0 [pid 5251] <... futex resumed>) = 1 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] <... futex resumed>) = 0 [pid 5051] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5254] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5253] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5051] rmdir("./15/file2" [pid 5054] <... ioctl resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5254] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5253] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5051] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5253] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(3 [pid 5254] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5054] close(3 [pid 5051] <... close resumed>) = 0 [pid 5255] <... mount resumed>) = 0 [pid 5254] <... futex resumed>) = 1 [pid 5253] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5254] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] <... futex resumed>) = 0 [pid 5250] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 0 [pid 5253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5254] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5256 attached [pid 5253] memfd_create("syzkaller", 0 [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] rmdir("./15" [pid 5253] <... memfd_create resumed>) = 4 [ 88.305204][ T5255] loop4: detected capacity change from 0 to 1024 [pid 5256] set_robust_list(0x555556b376a0, 24 [pid 5255] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5254] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5256 [pid 5051] <... rmdir resumed>) = 0 [pid 5256] <... set_robust_list resumed>) = 0 [pid 5254] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... mmap resumed>) = 0x7f6dade00000 [pid 5256] chdir("./15" [pid 5255] <... openat resumed>) = 3 [pid 5051] mkdir("./16", 0777 [pid 5256] <... chdir resumed>) = 0 [pid 5255] chdir("./file2" [pid 5254] <... futex resumed>) = 1 [pid 5250] <... futex resumed>) = 0 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] <... chdir resumed>) = 0 [pid 5254] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5250] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... mkdir resumed>) = 0 [pid 5255] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5250] <... futex resumed>) = 0 [pid 5255] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5256] <... prctl resumed>) = 0 [pid 5254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5256] setpgid(0, 0 [pid 5255] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] memfd_create("syzkaller", 0 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5256] <... setpgid resumed>) = 0 [pid 5255] <... futex resumed>) = 1 [pid 5254] <... memfd_create resumed>) = 4 [pid 5252] <... futex resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5255] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5253] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5252] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5255] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5254] <... mmap resumed>) = 0x7f6dade00000 [pid 5256] <... openat resumed>) = 3 [pid 5255] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5255] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] write(3, "1000", 4) = 4 [pid 5256] close(3 [pid 5255] <... futex resumed>) = 1 [pid 5252] <... futex resumed>) = 0 [pid 5255] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5252] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5252] <... futex resumed>) = 0 [pid 5255] memfd_create("syzkaller", 0 [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5256] <... close resumed>) = 0 [pid 5255] <... memfd_create resumed>) = 4 [pid 5256] symlink("/dev/binderfs", "./binderfs" [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5254] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5256] <... symlink resumed>) = 0 [pid 5255] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5254] <... write resumed>) = 524288 [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... write resumed>) = 524288 [pid 5256] <... futex resumed>) = 0 [pid 5256] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5253] munmap(0x7f6dade00000, 138412032 [pid 5053] <... ioctl resumed>) = 0 [pid 5256] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5256] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5253] <... munmap resumed>) = 0 [pid 5256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5253] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5053] close(3 [pid 5256] <... mmap resumed>) = 0x7f6db6363000 [pid 5053] <... close resumed>) = 0 [pid 5256] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5257 attached [pid 5256] <... mprotect resumed>) = 0 [pid 5253] close(4 [pid 5257] set_robust_list(0x555556b376a0, 24) = 0 [pid 5257] chdir("./16") = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5257] setpgid(0, 0) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] <... close resumed>) = 0 [pid 5257] <... openat resumed>) = 3 [pid 5256] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5255] <... write resumed>) = 524288 [pid 5254] munmap(0x7f6dade00000, 138412032 [pid 5253] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5257 [pid 5257] write(3, "1000", 4 [pid 5256] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5256] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5258]}, 88) = 5258 [pid 5257] <... write resumed>) = 4 [pid 5256] rt_sigprocmask(SIG_SETMASK, [], [pid 5257] close(3 [pid 5256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5256] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... close resumed>) = 0 [pid 5256] <... futex resumed>) = 0 [pid 5257] symlink("/dev/binderfs", "./binderfs" [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5257] <... symlink resumed>) = 0 [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... munmap resumed>) = 0 [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5257] <... futex resumed>) = 0 [pid 5254] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5257] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5254] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5254] close(4./strace-static-x86_64: Process 5258 attached [pid 5258] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5253] openat(AT_FDCWD, ".", O_RDONLY [pid 5258] set_robust_list(0x7f6db63839a0, 24 [pid 5257] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5253] <... openat resumed>) = 4 [pid 5258] <... set_robust_list resumed>) = 0 [pid 5257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5253] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] rt_sigprocmask(SIG_SETMASK, [], [pid 5257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5251] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5257] <... mmap resumed>) = 0x7f6db6363000 [pid 5255] munmap(0x7f6dade00000, 138412032 [pid 5253] openat(AT_FDCWD, ".", O_RDONLY [pid 5251] <... futex resumed>) = 0 [pid 5258] memfd_create("syzkaller", 0 [pid 5257] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5257] <... mprotect resumed>) = 0 [pid 5255] <... munmap resumed>) = 0 [pid 5253] <... openat resumed>) = 5 [pid 5257] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5254] <... close resumed>) = 0 [pid 5253] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5255] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5254] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5255] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5254] <... futex resumed>) = 1 [pid 5253] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... futex resumed>) = 0 [pid 5257] <... clone3 resumed> => {parent_tid=[5259]}, 88) = 5259 [pid 5254] openat(AT_FDCWD, ".", O_RDONLY [pid 5253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5251] <... futex resumed>) = 0 [pid 5250] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5259 attached [pid 5257] rt_sigprocmask(SIG_SETMASK, [], [pid 5255] close(4 [pid 5254] <... openat resumed>) = 4 [pid 5253] renameat2(5, "./file2", 4, "./file1", 0 [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5259] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5258] <... memfd_create resumed>) = 3 [pid 5257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5257] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5257] <... futex resumed>) = 0 [pid 5254] <... futex resumed>) = 0 [pid 5253] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5250] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... futex resumed>) = 0 [pid 5251] <... futex resumed>) = 0 [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] openat(AT_FDCWD, ".", O_RDONLY [pid 5251] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5259] <... rseq resumed>) = 0 [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5254] <... openat resumed>) = 5 [pid 5253] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5259] set_robust_list(0x7f6db63839a0, 24 [pid 5254] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5259] <... set_robust_list resumed>) = 0 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5255] <... close resumed>) = 0 [pid 5254] <... futex resumed>) = 1 [pid 5253] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... futex resumed>) = 0 [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5250] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5258] <... mmap resumed>) = 0x7f6dade00000 [pid 5251] exit_group(0 [pid 5250] <... futex resumed>) = 0 [pid 5254] renameat2(5, "./file2", 4, "./file1", 0 [pid 5251] <... exit_group resumed>) = ? [pid 5259] memfd_create("syzkaller", 0 [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5255] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5253] +++ exited with 0 +++ [pid 5251] +++ exited with 0 +++ [pid 5255] <... futex resumed>) = 1 [pid 5254] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] <... futex resumed>) = 0 [pid 5255] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] <... futex resumed>) = 1 [pid 5252] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... futex resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5254] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5252] <... futex resumed>) = 0 [pid 5250] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] openat(AT_FDCWD, ".", O_RDONLY [pid 5254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 0 [pid 5255] <... openat resumed>) = 4 [pid 5254] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5250] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5052] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5255] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = 1 [pid 5254] <... futex resumed>) = 1 [pid 5250] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5255] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5250] exit_group(0 [pid 5254] <... futex resumed>) = ? [pid 5250] <... exit_group resumed>) = ? [pid 5254] +++ exited with 0 +++ [pid 5252] <... futex resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5259] <... memfd_create resumed>) = 3 [pid 5252] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5255] <... futex resumed>) = 0 [pid 5252] <... futex resumed>) = 1 [pid 5250] +++ exited with 0 +++ [pid 5052] <... openat resumed>) = 3 [pid 5051] close(3 [pid 5259] <... mmap resumed>) = 0x7f6dade00000 [pid 5255] openat(AT_FDCWD, ".", O_RDONLY [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5255] <... openat resumed>) = 5 [pid 5052] newfstatat(3, "", [pid 5051] <... close resumed>) = 0 [pid 5255] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5252] <... futex resumed>) = 0 [pid 5255] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5252] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5252] <... futex resumed>) = 1 [pid 5056] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5258] <... write resumed>) = 524288 [pid 5255] <... futex resumed>) = 0 [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(3, [pid 5056] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 5260 attached [pid 5056] <... openat resumed>) = 3 [pid 5052] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(3, "", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5260] set_robust_list(0x555556b376a0, 24 [pid 5255] renameat2(5, "./file2", 4, "./file1", 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5260] <... set_robust_list resumed>) = 0 [pid 5255] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5260] chdir("./16" [pid 5255] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5260] <... chdir resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5260 [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5260] setpgid(0, 0) = 0 [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5260] write(3, "1000", 4 [pid 5258] munmap(0x7f6dade00000, 138412032 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] <... futex resumed>) = 0 [pid 5260] <... write resumed>) = 4 [pid 5056] getdents64(3, [pid 5252] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] unlink("./15/binderfs" [pid 5255] <... futex resumed>) = 0 [pid 5252] <... futex resumed>) = 1 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5260] close(3 [pid 5258] <... munmap resumed>) = 0 [pid 5255] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5252] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... unlink resumed>) = 0 [pid 5260] <... close resumed>) = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5255] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5260] symlink("/dev/binderfs", "./binderfs" [pid 5258] <... openat resumed>) = 4 [pid 5255] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5260] <... symlink resumed>) = 0 [pid 5255] <... futex resumed>) = 0 [pid 5255] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5258] ioctl(4, LOOP_SET_FD, 3 [pid 5252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5260] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5260] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5260] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5260] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5260] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5252] exit_group(0 [pid 5260] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5260] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5261]}, 88) = 5261 [pid 5260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5260] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5255] <... futex resumed>) = ? [pid 5252] <... exit_group resumed>) = ? [pid 5255] +++ exited with 0 +++ [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5261 attached [pid 5261] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5261] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5252] +++ exited with 0 +++ [pid 5056] unlink("./15/binderfs" [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5261] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5261] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5261] memfd_create("syzkaller", 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = 0 [pid 5261] <... memfd_create resumed>) = 3 [pid 5258] <... ioctl resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5261] <... mmap resumed>) = 0x7f6dade00000 [pid 5258] close(3 [pid 5055] unlink("./16/binderfs" [pid 5261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5259] <... write resumed>) = 524288 [pid 5258] <... close resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5052] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] close(4 [pid 5055] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5258] <... close resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./15/file2", [pid 5258] mkdir("./file2", 0777 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5258] <... mkdir resumed>) = 0 [pid 5052] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, [pid 5258] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5261] <... write resumed>) = 524288 [pid 5056] newfstatat(AT_FDCWD, "./15/file2", [pid 5052] rmdir("./15/file2") = 0 [pid 5052] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [pid 5052] rmdir("./15" [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5259] munmap(0x7f6dade00000, 138412032 [pid 5056] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5259] <... munmap resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 88.473702][ T5258] loop3: detected capacity change from 0 to 1024 [pid 5052] mkdir("./16", 0777 [pid 5056] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5259] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... mkdir resumed>) = 0 [pid 5259] <... openat resumed>) = 4 [pid 5056] <... openat resumed>) = 4 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... umount2 resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5259] ioctl(4, LOOP_SET_FD, 3 [pid 5052] <... openat resumed>) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5055] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./16/file2", [pid 5258] <... mount resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5258] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5055] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5261] munmap(0x7f6dade00000, 138412032 [pid 5258] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5261] <... munmap resumed>) = 0 [pid 5258] chdir("./file2" [pid 5055] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5258] <... chdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5259] <... ioctl resumed>) = 0 [pid 5261] <... openat resumed>) = 4 [pid 5259] close(3 [pid 5056] getdents64(4, [pid 5055] newfstatat(4, "", [pid 5261] ioctl(4, LOOP_SET_FD, 3 [pid 5259] <... close resumed>) = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5259] close(4 [pid 5258] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] getdents64(4, [pid 5259] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5258] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(4 [pid 5052] <... ioctl resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5259] mkdir("./file2", 0777 [pid 5258] <... futex resumed>) = 1 [pid 5256] <... futex resumed>) = 0 [pid 5055] getdents64(4, [pid 5056] rmdir("./15/file2" [pid 5256] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] close(3 [pid 5259] <... mkdir resumed>) = 0 [pid 5258] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5256] <... futex resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] close(4 [pid 5052] <... close resumed>) = 0 [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(3, [pid 5055] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5055] rmdir("./16/file2" [pid 5056] <... close resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5259] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5055] getdents64(3, [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5262 [pid 5258] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5258] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5258] <... futex resumed>) = 1 [pid 5256] <... futex resumed>) = 0 [pid 5055] rmdir("./16" [pid 5258] memfd_create("syzkaller", 0 [pid 5256] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5258] <... memfd_create resumed>) = 4 [pid 5256] <... futex resumed>) = 0 [pid 5055] mkdir("./17", 0777 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... mkdir resumed>) = 0 [pid 5258] <... mmap resumed>) = 0x7f6dade00000 [pid 5258] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] rmdir("./15"./strace-static-x86_64: Process 5262 attached ) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] mkdir("./16", 0777 [pid 5055] <... openat resumed>) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5056] <... mkdir resumed>) = 0 [pid 5262] set_robust_list(0x555556b376a0, 24) = 0 [pid 5259] <... mount resumed>) = 0 [pid 5259] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5262] chdir("./16" [pid 5261] <... ioctl resumed>) = 0 [pid 5259] <... openat resumed>) = 3 [pid 5261] close(3 [pid 5259] chdir("./file2" [pid 5261] <... close resumed>) = 0 [pid 5259] <... chdir resumed>) = 0 [pid 5261] close(4 [pid 5259] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5262] <... chdir resumed>) = 0 [pid 5261] <... close resumed>) = 0 [pid 5259] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... openat resumed>) = 3 [pid 5258] <... write resumed>) = 524288 [pid 5261] mkdir("./file2", 0777 [pid 5259] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5261] <... mkdir resumed>) = 0 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5261] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5259] <... futex resumed>) = 1 [pid 5259] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] <... prctl resumed>) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5257] <... futex resumed>) = 1 [pid 5259] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5259] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5259] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5259] memfd_create("syzkaller", 0 [pid 5257] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] setpgid(0, 0 [pid 5259] <... memfd_create resumed>) = 4 [pid 5257] <... futex resumed>) = 0 [pid 5262] <... setpgid resumed>) = 0 [pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5258] munmap(0x7f6dade00000, 138412032 [ 88.519891][ T5259] loop2: detected capacity change from 0 to 1024 [ 88.541857][ T5261] loop0: detected capacity change from 0 to 1024 [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5259] <... mmap resumed>) = 0x7f6dade00000 [pid 5258] <... munmap resumed>) = 0 [pid 5262] <... openat resumed>) = 3 [pid 5259] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5262] write(3, "1000", 4 [pid 5258] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5258] close(4 [pid 5262] <... write resumed>) = 4 [pid 5258] <... close resumed>) = 0 [pid 5262] close(3) = 0 [pid 5261] <... mount resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5262] symlink("/dev/binderfs", "./binderfs" [pid 5261] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5262] <... symlink resumed>) = 0 [pid 5261] <... openat resumed>) = 3 [pid 5259] <... write resumed>) = 524288 [pid 5056] <... ioctl resumed>) = 0 [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5055] close(3) = 0 [pid 5262] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5056] close(3 [pid 5258] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5262] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] <... close resumed>) = 0 [pid 5261] chdir("./file2" [pid 5258] <... futex resumed>) = 1 [pid 5262] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5261] <... chdir resumed>) = 0 [pid 5258] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5263 [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5256] <... futex resumed>) = 0 [pid 5256] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5258] openat(AT_FDCWD, ".", O_RDONLY [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5264 attached ./strace-static-x86_64: Process 5263 attached [pid 5262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5258] <... openat resumed>) = 4 [pid 5262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5264] set_robust_list(0x555556b376a0, 24 [pid 5261] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] munmap(0x7f6dade00000, 138412032 [pid 5258] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] <... set_robust_list resumed>) = 0 [pid 5263] set_robust_list(0x555556b376a0, 24 [pid 5262] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5264 [pid 5263] <... set_robust_list resumed>) = 0 [pid 5264] chdir("./16" [pid 5263] chdir("./17" [pid 5262] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5261] <... futex resumed>) = 1 [pid 5259] <... munmap resumed>) = 0 [pid 5258] <... futex resumed>) = 1 [pid 5256] <... futex resumed>) = 0 [pid 5263] <... chdir resumed>) = 0 [pid 5262] <... mprotect resumed>) = 0 [pid 5261] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5258] openat(AT_FDCWD, ".", O_RDONLY [pid 5256] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5262] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5258] <... openat resumed>) = 5 [pid 5256] <... futex resumed>) = 0 [pid 5263] <... prctl resumed>) = 0 [pid 5262] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5258] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] setpgid(0, 0 [pid 5262] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5258] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5263] <... setpgid resumed>) = 0 [pid 5260] <... futex resumed>) = 0 [pid 5259] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5258] renameat2(5, "./file2", 4, "./file1", 0 [pid 5256] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5265 attached [pid 5264] <... chdir resumed>) = 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5260] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5258] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5256] <... futex resumed>) = 0 [pid 5265] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5262] <... clone3 resumed> => {parent_tid=[5265]}, 88) = 5265 [pid 5261] <... futex resumed>) = 0 [pid 5260] <... futex resumed>) = 1 [pid 5259] close(4 [pid 5258] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5265] <... rseq resumed>) = 0 [pid 5264] <... prctl resumed>) = 0 [pid 5263] <... openat resumed>) = 3 [pid 5262] rt_sigprocmask(SIG_SETMASK, [], [pid 5261] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5259] <... close resumed>) = 0 [pid 5256] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] set_robust_list(0x7f6db63839a0, 24 [pid 5264] setpgid(0, 0 [pid 5263] write(3, "1000", 4 [pid 5262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5261] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5258] <... futex resumed>) = 0 [pid 5262] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5256] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5265] <... set_robust_list resumed>) = 0 [pid 5261] <... futex resumed>) = 0 [pid 5258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5256] <... futex resumed>) = 0 [pid 5264] <... setpgid resumed>) = 0 [pid 5265] rt_sigprocmask(SIG_SETMASK, [], [pid 5263] <... write resumed>) = 4 [pid 5261] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5258] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5256] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5265] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5263] close(3 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5265] memfd_create("syzkaller", 0 [pid 5263] <... close resumed>) = 0 [pid 5260] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5259] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5265] <... memfd_create resumed>) = 3 [pid 5263] symlink("/dev/binderfs", "./binderfs" [pid 5260] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 1 [pid 5258] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5264] <... openat resumed>) = 3 [pid 5265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5263] <... symlink resumed>) = 0 [pid 5261] <... futex resumed>) = 0 [pid 5260] <... futex resumed>) = 1 [pid 5259] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5258] <... futex resumed>) = 1 [pid 5257] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... futex resumed>) = 0 [pid 5265] <... mmap resumed>) = 0x7f6dade00000 [pid 5264] write(3, "1000", 4 [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5261] memfd_create("syzkaller", 0 [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5259] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5258] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] <... futex resumed>) = 0 [pid 5256] exit_group(0 [pid 5264] <... write resumed>) = 4 [pid 5263] <... futex resumed>) = 0 [pid 5261] <... memfd_create resumed>) = 4 [pid 5259] openat(AT_FDCWD, ".", O_RDONLY [pid 5258] <... futex resumed>) = ? [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... exit_group resumed>) = ? [pid 5264] close(3 [pid 5263] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5259] <... openat resumed>) = 4 [pid 5258] +++ exited with 0 +++ [pid 5256] +++ exited with 0 +++ [pid 5264] <... close resumed>) = 0 [pid 5263] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5261] <... mmap resumed>) = 0x7f6dade00000 [pid 5259] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5264] symlink("/dev/binderfs", "./binderfs" [pid 5263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5259] <... futex resumed>) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5264] <... symlink resumed>) = 0 [pid 5263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5261] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5259] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5259] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5257] <... futex resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5263] <... mmap resumed>) = 0x7f6db6363000 [pid 5054] <... openat resumed>) = 3 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5054] newfstatat(3, "", [pid 5264] <... futex resumed>) = 0 [pid 5263] <... mprotect resumed>) = 0 [pid 5264] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5264] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5054] getdents64(3, [pid 5264] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5264] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5263] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5054] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5263] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5259] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] <... mmap resumed>) = 0x7f6db6363000 [pid 5263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5259] <... openat resumed>) = 5 [pid 5054] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5264] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5259] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5264] <... mprotect resumed>) = 0 [pid 5263] <... clone3 resumed> => {parent_tid=[5266]}, 88) = 5266 [pid 5259] <... futex resumed>) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5054] unlink("./15/binderfs"./strace-static-x86_64: Process 5266 attached [pid 5265] <... write resumed>) = 524288 [pid 5264] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5263] rt_sigprocmask(SIG_SETMASK, [], [pid 5259] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5265] munmap(0x7f6dade00000, 138412032 [pid 5264] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5261] <... write resumed>) = 524288 [pid 5259] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5257] <... futex resumed>) = 0 [pid 5054] <... unlink resumed>) = 0 [pid 5266] <... rseq resumed>) = 0 [pid 5264] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5263] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5261] munmap(0x7f6dade00000, 138412032 [pid 5259] renameat2(5, "./file2", 4, "./file1", 0 [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5267 attached [pid 5266] set_robust_list(0x7f6db63839a0, 24 [pid 5265] <... munmap resumed>) = 0 [pid 5263] <... futex resumed>) = 0 [pid 5261] <... munmap resumed>) = 0 [pid 5259] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5267] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5266] <... set_robust_list resumed>) = 0 [pid 5265] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5267] <... rseq resumed>) = 0 [pid 5266] rt_sigprocmask(SIG_SETMASK, [], [pid 5265] <... openat resumed>) = 4 [pid 5264] <... clone3 resumed> => {parent_tid=[5267]}, 88) = 5267 [pid 5267] set_robust_list(0x7f6db63839a0, 24 [pid 5266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5259] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... set_robust_list resumed>) = 0 [pid 5266] memfd_create("syzkaller", 0 [pid 5265] ioctl(4, LOOP_SET_FD, 3 [pid 5264] rt_sigprocmask(SIG_SETMASK, [], [pid 5259] <... futex resumed>) = 1 [pid 5267] rt_sigprocmask(SIG_SETMASK, [], [pid 5266] <... memfd_create resumed>) = 3 [pid 5261] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5259] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] <... futex resumed>) = 0 [pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5261] close(4 [pid 5257] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... mmap resumed>) = 0x7f6dade00000 [pid 5257] <... futex resumed>) = 1 [pid 5259] <... futex resumed>) = 0 [pid 5259] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5257] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5259] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5267] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5264] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5264] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5267] memfd_create("syzkaller", 0 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5259] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5259] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] <... futex resumed>) = 0 [pid 5257] exit_group(0) = ? [pid 5259] <... futex resumed>) = ? [pid 5259] +++ exited with 0 +++ [pid 5054] <... umount2 resumed>) = 0 [pid 5267] <... memfd_create resumed>) = 3 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5054] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5261] <... close resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./15/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5257] +++ exited with 0 +++ [pid 5261] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./15/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5261] <... futex resumed>) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5261] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5260] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5261] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5260] <... futex resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... restart_syscall resumed>) = 0 [pid 5266] <... write resumed>) = 524288 [pid 5261] openat(AT_FDCWD, ".", O_RDONLY [pid 5265] <... ioctl resumed>) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5267] <... write resumed>) = 524288 [pid 5266] munmap(0x7f6dade00000, 138412032 [pid 5265] close(3 [pid 5261] <... openat resumed>) = 4 [pid 5054] newfstatat(4, "", [pid 5267] munmap(0x7f6dade00000, 138412032 [pid 5266] <... munmap resumed>) = 0 [pid 5265] <... close resumed>) = 0 [pid 5261] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5267] <... munmap resumed>) = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5265] close(4 [pid 5260] <... futex resumed>) = 0 [pid 5054] getdents64(4, [pid 5267] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5266] <... openat resumed>) = 4 [pid 5265] <... close resumed>) = 0 [pid 5261] <... futex resumed>) = 1 [pid 5260] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5267] <... openat resumed>) = 4 [pid 5266] ioctl(4, LOOP_SET_FD, 3 [pid 5265] mkdir("./file2", 0777 [pid 5261] openat(AT_FDCWD, ".", O_RDONLY [pid 5260] <... futex resumed>) = 0 [pid 5054] getdents64(4, [pid 5053] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5267] ioctl(4, LOOP_SET_FD, 3 [pid 5265] <... mkdir resumed>) = 0 [pid 5261] <... openat resumed>) = 5 [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5267] <... ioctl resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5261] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] close(4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5265] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5261] <... futex resumed>) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5261] renameat2(5, "./file2", 4, "./file1", 0 [pid 5260] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] rmdir("./15/file2" [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5260] <... futex resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5053] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] getdents64(3, [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5054] close(3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... close resumed>) = 0 [pid 5054] rmdir("./15" [pid 5053] unlink("./16/binderfs" [pid 5054] <... rmdir resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5053] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... mount resumed>) = 0 [pid 5261] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5054] mkdir("./16", 0777 [pid 5265] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5261] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... mkdir resumed>) = 0 [pid 5265] <... openat resumed>) = 3 [pid 5261] <... futex resumed>) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5265] chdir("./file2" [pid 5261] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5260] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5265] <... chdir resumed>) = 0 [pid 5260] <... futex resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5265] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5260] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5265] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5261] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5265] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] <... futex resumed>) = 0 [pid 5261] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT) = -1 EFAULT (Bad address) [pid 5261] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5260] exit_group(0) = ? [pid 5261] +++ exited with 0 +++ [pid 5260] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5051] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5051] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./16/binderfs") = 0 [pid 5051] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5262] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] close(3) = 0 [pid 5266] <... ioctl resumed>) = 0 [pid 5265] <... futex resumed>) = 0 [pid 5262] <... futex resumed>) = 1 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5267] close(4 [pid 5266] close(3 [pid 5265] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... close resumed>) = 0 [pid 5266] <... close resumed>) = 0 [pid 5267] mkdir("./file2", 0777 [pid 5266] close(4 [pid 5267] <... mkdir resumed>) = 0 [pid 5266] <... close resumed>) = 0 [pid 5265] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5265] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... futex resumed>) = 1 [pid 5262] <... futex resumed>) = 0 [ 88.699764][ T5265] loop1: detected capacity change from 0 to 1024 [ 88.731618][ T5266] loop4: detected capacity change from 0 to 1024 [ 88.739259][ T5267] loop5: detected capacity change from 0 to 1024 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5265] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./16/file2", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5267] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5266] mkdir("./file2", 0777 [pid 5265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5262] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] newfstatat(AT_FDCWD, "./16/file2", [pid 5266] <... mkdir resumed>) = 0 [pid 5265] memfd_create("syzkaller", 0 [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... memfd_create resumed>) = 4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5265] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5266] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5053] <... openat resumed>) = 4 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(4, "", [pid 5051] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(4, [pid 5051] <... openat resumed>) = 4 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] newfstatat(4, "", [pid 5053] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] close(4) = 0 [pid 5051] getdents64(4, [pid 5053] rmdir("./16/file2") = 0 [pid 5053] getdents64(3, [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(4, [pid 5053] close(3 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] close(4 [pid 5053] rmdir("./16" [pid 5265] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5051] <... close resumed>) = 0 [pid 5265] <... write resumed>) = 524288 [pid 5054] <... ioctl resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] rmdir("./16/file2" [pid 5054] close(3 [pid 5267] <... mount resumed>) = 0 [pid 5266] <... mount resumed>) = 0 [pid 5265] munmap(0x7f6dade00000, 138412032 [pid 5053] mkdir("./17", 0777 [pid 5051] <... rmdir resumed>) = 0 [pid 5267] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5266] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5267] chdir("./file2") = 0 [pid 5266] chdir("./file2" [pid 5265] <... munmap resumed>) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] <... close resumed>) = 0 [pid 5267] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... mkdir resumed>) = 0 [pid 5051] getdents64(3, [pid 5266] <... chdir resumed>) = 0 [pid 5265] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5267] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5265] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] close(3 [pid 5267] <... futex resumed>) = 1 [pid 5266] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5265] close(4 [pid 5264] <... futex resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... close resumed>) = 0 [pid 5267] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5264] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] rmdir("./16" [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5264] <... futex resumed>) = 0 [pid 5267] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5266] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] <... close resumed>) = 0 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... openat resumed>) = 3 [pid 5051] <... rmdir resumed>) = 0 [pid 5266] <... futex resumed>) = 1 [pid 5266] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] <... futex resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5263] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] mkdir("./17", 0777./strace-static-x86_64: Process 5268 attached [pid 5266] <... futex resumed>) = 0 [pid 5263] <... futex resumed>) = 1 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5268 [pid 5266] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5266] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5265] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5265] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] <... futex resumed>) = 0 [pid 5262] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] <... futex resumed>) = 0 [pid 5262] <... futex resumed>) = 1 [pid 5265] openat(AT_FDCWD, ".", O_RDONLY [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5265] <... openat resumed>) = 4 [pid 5265] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5265] openat(AT_FDCWD, ".", O_RDONLY [pid 5262] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] <... openat resumed>) = 5 [pid 5262] <... futex resumed>) = 0 [pid 5266] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5266] <... futex resumed>) = 1 [pid 5265] <... futex resumed>) = 0 [pid 5268] set_robust_list(0x555556b376a0, 24 [pid 5262] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5266] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] <... futex resumed>) = 0 [pid 5262] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... mkdir resumed>) = 0 [pid 5268] <... set_robust_list resumed>) = 0 [pid 5267] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5263] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] <... futex resumed>) = 0 [pid 5268] chdir("./16" [pid 5266] <... futex resumed>) = 0 [pid 5265] renameat2(5, "./file2", 4, "./file1", 0 [pid 5263] <... futex resumed>) = 1 [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5268] <... chdir resumed>) = 0 [pid 5267] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] memfd_create("syzkaller", 0 [pid 5265] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5265] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5262] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... memfd_create resumed>) = 4 [pid 5262] <... futex resumed>) = 0 [pid 5268] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5262] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5268] <... prctl resumed>) = 0 [pid 5267] <... futex resumed>) = 1 [pid 5266] <... mmap resumed>) = 0x7f6dade00000 [pid 5265] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5264] <... futex resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5265] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5264] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5268] setpgid(0, 0 [pid 5267] memfd_create("syzkaller", 0 [pid 5266] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5265] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5264] <... futex resumed>) = 0 [pid 5262] exit_group(0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5268] <... setpgid resumed>) = 0 [pid 5267] <... memfd_create resumed>) = 4 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5262] <... exit_group resumed>) = ? [pid 5267] <... mmap resumed>) = 0x7f6dade00000 [pid 5265] <... futex resumed>) = ? [pid 5268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5265] +++ exited with 0 +++ [pid 5262] +++ exited with 0 +++ [pid 5268] write(3, "1000", 4 [pid 5267] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5268] <... write resumed>) = 4 [pid 5266] <... write resumed>) = 524288 [pid 5268] close(3) = 0 [pid 5266] munmap(0x7f6dade00000, 138412032 [pid 5052] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5268] symlink("/dev/binderfs", "./binderfs" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5268] <... symlink resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5266] <... munmap resumed>) = 0 [pid 5052] unlink("./16/binderfs") = 0 [pid 5052] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... write resumed>) = 524288 [pid 5266] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5053] <... ioctl resumed>) = 0 [pid 5266] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5267] munmap(0x7f6dade00000, 138412032 [pid 5266] close(4 [pid 5267] <... munmap resumed>) = 0 [pid 5268] <... futex resumed>) = 0 [pid 5268] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5268] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5052] <... umount2 resumed>) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5268] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5267] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5268] <... mprotect resumed>) = 0 [pid 5267] close(4 [pid 5268] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5053] close(3 [pid 5268] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5053] <... close resumed>) = 0 [pid 5268] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5269 attached [pid 5268] <... clone3 resumed> => {parent_tid=[5269]}, 88) = 5269 [pid 5269] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5268] rt_sigprocmask(SIG_SETMASK, [], [pid 5269] <... rseq resumed>) = 0 [pid 5268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5269] set_robust_list(0x7f6db63839a0, 24 [pid 5268] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... set_robust_list resumed>) = 0 [pid 5268] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5270 attached [pid 5269] rt_sigprocmask(SIG_SETMASK, [], [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5266] <... close resumed>) = 0 [pid 5052] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5270] set_robust_list(0x555556b376a0, 24 [pid 5269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5270] <... set_robust_list resumed>) = 0 [pid 5269] memfd_create("syzkaller", 0 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5270 [pid 5052] newfstatat(AT_FDCWD, "./16/file2", [pid 5051] <... ioctl resumed>) = 0 [pid 5270] chdir("./17" [pid 5269] <... memfd_create resumed>) = 3 [pid 5267] <... close resumed>) = 0 [pid 5266] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5269] <... mmap resumed>) = 0x7f6dade00000 [pid 5052] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5052] <... openat resumed>) = 4 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5270] <... chdir resumed>) = 0 [pid 5267] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5052] getdents64(4, [pid 5051] close(3 [pid 5270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5267] <... futex resumed>) = 1 [pid 5266] openat(AT_FDCWD, ".", O_RDONLY [pid 5264] <... futex resumed>) = 0 [pid 5263] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... close resumed>) = 0 [pid 5270] <... prctl resumed>) = 0 [pid 5267] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5264] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5270] setpgid(0, 0 [pid 5266] <... openat resumed>) = 4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... setpgid resumed>) = 0 [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5266] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] <... futex resumed>) = 0 [pid 5052] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] close(4) = 0 [pid 5270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5267] openat(AT_FDCWD, ".", O_RDONLY [pid 5266] <... futex resumed>) = 0 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] rmdir("./16/file2" [pid 5266] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5271 attached [pid 5270] <... openat resumed>) = 3 [pid 5267] <... openat resumed>) = 4 [pid 5266] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5263] <... futex resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5271] set_robust_list(0x555556b376a0, 24 [pid 5270] write(3, "1000", 4 [pid 5267] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] openat(AT_FDCWD, ".", O_RDONLY [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5271] <... set_robust_list resumed>) = 0 [pid 5270] <... write resumed>) = 4 [pid 5267] <... futex resumed>) = 1 [pid 5266] <... openat resumed>) = 5 [pid 5264] <... futex resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5271 [pid 5271] chdir("./17" [pid 5270] close(3 [pid 5267] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5271] <... chdir resumed>) = 0 [pid 5270] <... close resumed>) = 0 [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5264] <... futex resumed>) = 0 [pid 5052] close(3 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5270] symlink("/dev/binderfs", "./binderfs" [pid 5267] openat(AT_FDCWD, ".", O_RDONLY [pid 5266] <... futex resumed>) = 1 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] <... futex resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5271] <... prctl resumed>) = 0 [pid 5270] <... symlink resumed>) = 0 [pid 5267] <... openat resumed>) = 5 [pid 5266] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] rmdir("./16" [pid 5271] setpgid(0, 0 [pid 5266] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5267] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5271] <... setpgid resumed>) = 0 [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... futex resumed>) = 1 [pid 5266] renameat2(5, "./file2", 4, "./file1", 0 [pid 5264] <... futex resumed>) = 0 [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] mkdir("./17", 0777 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5270] <... futex resumed>) = 0 [pid 5269] <... write resumed>) = 524288 [pid 5267] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5264] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... mkdir resumed>) = 0 [pid 5270] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5266] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] <... futex resumed>) = 0 [pid 5271] <... openat resumed>) = 3 [pid 5270] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5267] renameat2(5, "./file2", 4, "./file1", 0 [pid 5266] <... futex resumed>) = 1 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] <... futex resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5271] write(3, "1000", 4 [pid 5270] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5269] munmap(0x7f6dade00000, 138412032 [pid 5267] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5266] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... openat resumed>) = 3 [pid 5271] <... write resumed>) = 4 [pid 5270] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5269] <... munmap resumed>) = 0 [pid 5267] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5269] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5271] close(3 [pid 5270] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5267] <... futex resumed>) = 1 [pid 5266] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5264] <... futex resumed>) = 0 [pid 5263] <... futex resumed>) = 0 [pid 5271] <... close resumed>) = 0 [pid 5270] <... mmap resumed>) = 0x7f6db6363000 [pid 5267] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5264] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5271] symlink("/dev/binderfs", "./binderfs" [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5264] <... futex resumed>) = 0 [pid 5264] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5271] <... symlink resumed>) = 0 [pid 5270] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5269] <... openat resumed>) = 4 [pid 5267] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5266] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] ioctl(4, LOOP_SET_FD, 3 [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... mprotect resumed>) = 0 [pid 5267] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5266] <... futex resumed>) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5266] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] <... futex resumed>) = 0 [pid 5271] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5263] exit_group(0 [pid 5271] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5270] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5267] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5267] <... futex resumed>) = 1 [pid 5266] <... futex resumed>) = ? [pid 5263] <... exit_group resumed>) = ? [pid 5271] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5270] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5267] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] +++ exited with 0 +++ [pid 5264] <... futex resumed>) = 0 [pid 5271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5270] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5264] exit_group(0./strace-static-x86_64: Process 5272 attached [pid 5271] <... mmap resumed>) = 0x7f6db6363000 [pid 5269] <... ioctl resumed>) = 0 [pid 5267] <... futex resumed>) = ? [pid 5264] <... exit_group resumed>) = ? [pid 5272] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5271] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5270] <... clone3 resumed> => {parent_tid=[5272]}, 88) = 5272 [pid 5269] close(3 [pid 5267] +++ exited with 0 +++ [pid 5263] +++ exited with 0 +++ [pid 5270] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5271] <... mprotect resumed>) = 0 [pid 5270] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5270] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... rseq resumed>) = 0 [pid 5270] <... futex resumed>) = 0 [pid 5269] <... close resumed>) = 0 [pid 5272] set_robust_list(0x7f6db63839a0, 24 [pid 5271] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5269] close(4 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5272] <... set_robust_list resumed>) = 0 [pid 5271] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5269] <... close resumed>) = 0 [pid 5264] +++ exited with 0 +++ [pid 5272] rt_sigprocmask(SIG_SETMASK, [], [pid 5271] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5269] mkdir("./file2", 0777 [pid 5272] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5273 attached [pid 5272] memfd_create("syzkaller", 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5055] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] <... clone3 resumed> => {parent_tid=[5273]}, 88) = 5273 [pid 5271] rt_sigprocmask(SIG_SETMASK, [], [pid 5269] <... mkdir resumed>) = 0 [pid 5056] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5271] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5273] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5272] <... memfd_create resumed>) = 3 [pid 5273] <... rseq resumed>) = 0 [pid 5272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5273] set_robust_list(0x7f6db63839a0, 24 [pid 5272] <... mmap resumed>) = 0x7f6dade00000 [pid 5271] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5055] <... openat resumed>) = 3 [pid 5052] <... ioctl resumed>) = 0 [pid 5273] <... set_robust_list resumed>) = 0 [pid 5271] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(3, "", [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] newfstatat(3, "", [pid 5055] getdents64(3, [pid 5272] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5273] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] getdents64(3, [pid 5273] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5056] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] unlink("./16/binderfs") = 0 [pid 5056] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./17/binderfs") = 0 [pid 5055] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(3 [pid 5273] memfd_create("syzkaller", 0 [pid 5272] <... write resumed>) = 524288 [pid 5055] <... umount2 resumed>) = 0 [pid 5273] <... memfd_create resumed>) = 3 [pid 5272] munmap(0x7f6dade00000, 138412032 [pid 5052] <... close resumed>) = 0 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5272] <... munmap resumed>) = 0 [pid 5055] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5272] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5272] <... openat resumed>) = 4 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 88.989449][ T5269] loop3: detected capacity change from 0 to 1024 ./strace-static-x86_64: Process 5274 attached [pid 5272] ioctl(4, LOOP_SET_FD, 3 [pid 5269] <... mount resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./17/file2", [pid 5056] <... umount2 resumed>) = 0 [pid 5274] set_robust_list(0x555556b376a0, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5274 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5274] <... set_robust_list resumed>) = 0 [pid 5055] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5274] chdir("./17" [pid 5269] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5274] <... chdir resumed>) = 0 [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5273] <... write resumed>) = 524288 [pid 5056] newfstatat(AT_FDCWD, "./16/file2", [pid 5055] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5269] <... openat resumed>) = 3 [pid 5274] <... prctl resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5273] munmap(0x7f6dade00000, 138412032 [pid 5269] chdir("./file2" [pid 5056] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(4, "", [pid 5274] setpgid(0, 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5269] <... chdir resumed>) = 0 [pid 5274] <... setpgid resumed>) = 0 [pid 5269] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] getdents64(4, [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5273] <... munmap resumed>) = 0 [pid 5269] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5269] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(4, "", [pid 5055] getdents64(4, [pid 5269] <... futex resumed>) = 1 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5273] <... openat resumed>) = 4 [pid 5269] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5268] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] close(4 [pid 5273] ioctl(4, LOOP_SET_FD, 3 [pid 5268] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5269] <... futex resumed>) = 0 [pid 5268] <... futex resumed>) = 1 [pid 5055] rmdir("./17/file2" [pid 5269] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5274] <... openat resumed>) = 3 [pid 5055] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5274] write(3, "1000", 4) = 4 [pid 5269] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5274] close(3) = 0 [pid 5274] symlink("/dev/binderfs", "./binderfs" [pid 5272] <... ioctl resumed>) = 0 [pid 5274] <... symlink resumed>) = 0 [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] close(3 [pid 5274] <... futex resumed>) = 0 [pid 5272] <... close resumed>) = 0 [pid 5274] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5272] close(4) = 0 [pid 5272] mkdir("./file2", 0777 [pid 5274] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5272] <... mkdir resumed>) = 0 [pid 5055] close(3 [pid 5274] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5269] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5269] <... futex resumed>) = 1 [pid 5268] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] rmdir("./17" [pid 5274] <... mmap resumed>) = 0x7f6db6363000 [pid 5272] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5268] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(4 [pid 5274] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5269] memfd_create("syzkaller", 0 [pid 5268] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5274] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5273] <... ioctl resumed>) = 0 [pid 5269] <... memfd_create resumed>) = 4 [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] rmdir("./16/file2" [pid 5055] mkdir("./18", 0777 [pid 5273] close(3 [pid 5274] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5274] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5055] <... mkdir resumed>) = 0 [pid 5274] <... clone3 resumed> => {parent_tid=[5275]}, 88) = 5275 [pid 5273] <... close resumed>) = 0 [pid 5056] getdents64(3, [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5274] rt_sigprocmask(SIG_SETMASK, [], [pid 5273] close(4 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5275 attached [pid 5274] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5273] <... close resumed>) = 0 [pid 5269] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] close(3 [pid 5055] <... openat resumed>) = 3 [pid 5275] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5274] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] mkdir("./file2", 0777 [pid 5056] <... close resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5275] <... rseq resumed>) = 0 [pid 5274] <... futex resumed>) = 0 [pid 5275] set_robust_list(0x7f6db63839a0, 24 [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5275] <... set_robust_list resumed>) = 0 [pid 5273] <... mkdir resumed>) = 0 [pid 5056] rmdir("./16" [pid 5275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5275] memfd_create("syzkaller", 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5275] <... memfd_create resumed>) = 3 [pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5273] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5269] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] mkdir("./17", 0777) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5272] <... mount resumed>) = 0 [pid 5273] <... mount resumed>) = 0 [pid 5272] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5272] chdir("./file2") = 0 [pid 5272] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5272] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] <... futex resumed>) = 0 [ 89.041466][ T5272] loop2: detected capacity change from 0 to 1024 [ 89.065128][ T5273] loop0: detected capacity change from 0 to 1024 [pid 5273] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5272] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5270] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... openat resumed>) = 3 [pid 5270] <... futex resumed>) = 0 [pid 5275] <... write resumed>) = 524288 [pid 5273] chdir("./file2" [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5272] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5269] <... write resumed>) = 524288 [pid 5272] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5272] memfd_create("syzkaller", 0 [pid 5270] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... memfd_create resumed>) = 4 [pid 5270] <... futex resumed>) = 0 [pid 5272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5272] <... mmap resumed>) = 0x7f6dade00000 [pid 5275] munmap(0x7f6dade00000, 138412032) = 0 [pid 5275] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5275] ioctl(4, LOOP_SET_FD, 3 [pid 5273] <... chdir resumed>) = 0 [pid 5269] munmap(0x7f6dade00000, 138412032 [pid 5055] <... ioctl resumed>) = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5272] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5269] <... munmap resumed>) = 0 [pid 5273] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5272] <... write resumed>) = 524288 [pid 5269] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5273] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5273] <... futex resumed>) = 1 [pid 5055] close(3 [pid 5273] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] close(4 [pid 5055] <... close resumed>) = 0 [pid 5271] <... futex resumed>) = 0 [pid 5271] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... futex resumed>) = 0 [pid 5271] <... futex resumed>) = 1 [pid 5273] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5272] munmap(0x7f6dade00000, 138412032) = 0 [pid 5272] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5272] close(4) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5275] <... ioctl resumed>) = 0 [pid 5275] close(3) = 0 [pid 5273] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5275] close(4 [pid 5273] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... close resumed>) = 0 [pid 5273] <... futex resumed>) = 1 [pid 5271] <... futex resumed>) = 0 [pid 5275] mkdir("./file2", 0777 [pid 5271] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... close resumed>) = 0 [pid 5271] <... futex resumed>) = 0 [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5275] <... mkdir resumed>) = 0 [pid 5273] memfd_create("syzkaller", 0) = 4 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5276 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5272] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5276 attached [pid 5275] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5273] <... mmap resumed>) = 0x7f6dade00000 [pid 5272] <... futex resumed>) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5273] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5272] openat(AT_FDCWD, ".", O_RDONLY [pid 5270] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] set_robust_list(0x555556b376a0, 24 [pid 5272] <... openat resumed>) = 4 [pid 5269] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5268] <... futex resumed>) = 0 [pid 5276] <... set_robust_list resumed>) = 0 [pid 5272] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] chdir("./18" [pid 5272] <... futex resumed>) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5268] <... futex resumed>) = 0 [pid 5272] openat(AT_FDCWD, ".", O_RDONLY [pid 5270] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5272] <... openat resumed>) = 5 [pid 5270] <... futex resumed>) = 0 [pid 5272] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5269] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] <... ioctl resumed>) = 0 [pid 5272] <... futex resumed>) = 0 [pid 5270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5269] <... openat resumed>) = 4 [pid 5056] close(3 [pid 5273] <... write resumed>) = 524288 [pid 5272] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5270] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... chdir resumed>) = 0 [pid 5272] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5270] <... futex resumed>) = 0 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5272] renameat2(5, "./file2", 4, "./file1", 0 [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5269] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... prctl resumed>) = 0 [pid 5272] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5269] <... futex resumed>) = 1 [pid 5268] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5276] setpgid(0, 0 [pid 5272] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5268] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5276] <... setpgid resumed>) = 0 [pid 5272] <... futex resumed>) = 1 [pid 5270] <... futex resumed>) = 0 [ 89.133770][ T5275] loop1: detected capacity change from 0 to 1024 [pid 5269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 5277 attached [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5275] <... mount resumed>) = 0 [pid 5273] munmap(0x7f6dade00000, 138412032 [pid 5272] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5270] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] openat(AT_FDCWD, ".", O_RDONLY [pid 5268] <... futex resumed>) = 0 [pid 5277] set_robust_list(0x555556b376a0, 24 [pid 5276] <... openat resumed>) = 3 [pid 5275] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5272] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5270] <... futex resumed>) = 0 [pid 5277] <... set_robust_list resumed>) = 0 [pid 5276] write(3, "1000", 4 [pid 5275] <... openat resumed>) = 3 [pid 5272] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5270] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5269] <... openat resumed>) = 5 [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5277 [pid 5277] chdir("./17" [pid 5276] <... write resumed>) = 4 [pid 5275] chdir("./file2" [pid 5272] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5269] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5277] <... chdir resumed>) = 0 [pid 5276] close(3 [pid 5275] <... chdir resumed>) = 0 [pid 5272] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5276] <... close resumed>) = 0 [pid 5275] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5273] <... munmap resumed>) = 0 [pid 5272] <... futex resumed>) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5269] <... futex resumed>) = 1 [pid 5268] <... futex resumed>) = 0 [pid 5277] <... prctl resumed>) = 0 [pid 5276] symlink("/dev/binderfs", "./binderfs" [pid 5275] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5272] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5270] exit_group(0 [pid 5268] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5277] setpgid(0, 0 [pid 5276] <... symlink resumed>) = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5272] <... futex resumed>) = ? [pid 5275] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... exit_group resumed>) = ? [pid 5269] renameat2(5, "./file2", 4, "./file1", 0 [pid 5268] <... futex resumed>) = 0 [pid 5277] <... setpgid resumed>) = 0 [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... futex resumed>) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5273] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5272] +++ exited with 0 +++ [pid 5270] +++ exited with 0 +++ [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5276] <... futex resumed>) = 0 [pid 5275] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5270, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5277] <... openat resumed>) = 3 [pid 5276] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] <... futex resumed>) = 0 [pid 5269] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5275] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5269] <... futex resumed>) = 1 [pid 5276] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5268] <... futex resumed>) = 0 [pid 5276] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5273] close(4 [pid 5269] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5268] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5268] <... futex resumed>) = 0 [pid 5269] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5268] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5269] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5277] write(3, "1000", 4 [pid 5276] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5269] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... openat resumed>) = 3 [pid 5277] <... write resumed>) = 4 [pid 5276] <... mmap resumed>) = 0x7f6db6363000 [pid 5269] <... futex resumed>) = 1 [pid 5268] <... futex resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5277] close(3 [pid 5276] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5269] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5277] <... close resumed>) = 0 [pid 5276] <... mprotect resumed>) = 0 [pid 5268] exit_group(0 [pid 5053] getdents64(3, [pid 5277] symlink("/dev/binderfs", "./binderfs" [pid 5276] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5275] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5268] <... exit_group resumed>) = ? [pid 5277] <... symlink resumed>) = 0 [pid 5269] <... futex resumed>) = ? [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5269] +++ exited with 0 +++ [pid 5053] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5277] <... futex resumed>) = 0 [pid 5276] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5275] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... close resumed>) = 0 [pid 5268] +++ exited with 0 +++ [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5268, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5053] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5275] <... futex resumed>) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5273] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] <... futex resumed>) = 0 [pid 5053] unlink("./17/binderfs" [pid 5273] <... futex resumed>) = 1 [pid 5275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] <... futex resumed>) = 0 [pid 5271] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5278 attached [pid 5277] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5276] <... clone3 resumed> => {parent_tid=[5278]}, 88) = 5278 [pid 5275] memfd_create("syzkaller", 0 [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5273] openat(AT_FDCWD, ".", O_RDONLY [pid 5271] <... futex resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5278] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5277] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5276] rt_sigprocmask(SIG_SETMASK, [], [pid 5275] <... memfd_create resumed>) = 4 [pid 5273] <... openat resumed>) = 4 [pid 5053] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5278] <... rseq resumed>) = 0 [pid 5277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5276] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5273] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] set_robust_list(0x7f6db63839a0, 24 [pid 5277] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5276] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5278] <... set_robust_list resumed>) = 0 [pid 5277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5276] <... futex resumed>) = 0 [pid 5273] <... futex resumed>) = 0 [pid 5271] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] rt_sigprocmask(SIG_SETMASK, [], [pid 5277] <... mmap resumed>) = 0x7f6db6363000 [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5271] <... futex resumed>) = 0 [pid 5054] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5278] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5277] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5273] openat(AT_FDCWD, ".", O_RDONLY [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5278] memfd_create("syzkaller", 0 [pid 5277] <... mprotect resumed>) = 0 [pid 5278] <... memfd_create resumed>) = 3 [pid 5277] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5273] <... openat resumed>) = 5 [pid 5054] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5277] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5275] <... mmap resumed>) = 0x7f6dade00000 [pid 5273] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... openat resumed>) = 3 [pid 5278] <... mmap resumed>) = 0x7f6dade00000 [pid 5277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5273] <... futex resumed>) = 1 [pid 5271] <... futex resumed>) = 0 [pid 5054] newfstatat(3, "", [pid 5273] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5279 attached [pid 5277] <... clone3 resumed> => {parent_tid=[5279]}, 88) = 5279 [pid 5273] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5271] <... futex resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5279] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5278] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5277] rt_sigprocmask(SIG_SETMASK, [], [pid 5273] renameat2(5, "./file2", 4, "./file1", 0 [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] getdents64(3, [pid 5053] <... umount2 resumed>) = 0 [pid 5279] <... rseq resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5273] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5279] set_robust_list(0x7f6db63839a0, 24 [pid 5277] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] newfstatat(AT_FDCWD, "./17/file2", [pid 5279] <... set_robust_list resumed>) = 0 [pid 5277] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] unlink("./16/binderfs" [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5279] rt_sigprocmask(SIG_SETMASK, [], [pid 5277] <... futex resumed>) = 0 [pid 5273] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] <... unlink resumed>) = 0 [pid 5053] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5279] memfd_create("syzkaller", 0 [pid 5054] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5279] <... memfd_create resumed>) = 3 [pid 5053] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] newfstatat(4, "", [pid 5279] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5273] <... futex resumed>) = 1 [pid 5271] <... futex resumed>) = 0 [pid 5053] getdents64(4, [pid 5271] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5271] <... futex resumed>) = 0 [pid 5053] close(4 [pid 5271] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... close resumed>) = 0 [pid 5053] rmdir("./17/file2") = 0 [pid 5053] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] close(3) = 0 [pid 5053] rmdir("./17" [pid 5278] <... write resumed>) = 524288 [pid 5054] <... umount2 resumed>) = 0 [pid 5278] munmap(0x7f6dade00000, 138412032 [pid 5053] <... rmdir resumed>) = 0 [pid 5278] <... munmap resumed>) = 0 [pid 5275] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5273] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5054] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] mkdir("./18", 0777 [pid 5278] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5275] <... write resumed>) = 524288 [pid 5273] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... mkdir resumed>) = 0 [pid 5279] <... write resumed>) = 524288 [pid 5278] <... openat resumed>) = 4 [pid 5278] ioctl(4, LOOP_SET_FD, 3 [pid 5275] munmap(0x7f6dade00000, 138412032 [pid 5273] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(AT_FDCWD, "./16/file2", [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5273] <... futex resumed>) = 1 [pid 5271] <... futex resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5279] munmap(0x7f6dade00000, 138412032 [pid 5273] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] exit_group(0 [pid 5054] umount2("./16/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5273] <... futex resumed>) = ? [pid 5271] <... exit_group resumed>) = ? [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5273] +++ exited with 0 +++ [pid 5279] <... munmap resumed>) = 0 [pid 5279] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5279] <... openat resumed>) = 4 [pid 5054] <... openat resumed>) = 4 [pid 5279] ioctl(4, LOOP_SET_FD, 3 [pid 5275] <... munmap resumed>) = 0 [pid 5054] newfstatat(4, "", [pid 5278] <... ioctl resumed>) = 0 [pid 5278] close(3) = 0 [pid 5271] +++ exited with 0 +++ [pid 5278] close(4 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5279] <... ioctl resumed>) = 0 [pid 5278] <... close resumed>) = 0 [pid 5275] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5278] mkdir("./file2", 0777 [pid 5279] close(3 [pid 5278] <... mkdir resumed>) = 0 [pid 5275] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] getdents64(4, [pid 5279] <... close resumed>) = 0 [pid 5279] close(4 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5279] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] getdents64(4, [pid 5279] mkdir("./file2", 0777 [pid 5275] close(4 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] close(4) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5054] rmdir("./16/file2" [pid 5278] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5051] newfstatat(3, "", [pid 5054] <... rmdir resumed>) = 0 [pid 5054] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] close(3 [pid 5051] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] rmdir("./16" [pid 5051] unlink("./17/binderfs") = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5279] <... mkdir resumed>) = 0 [pid 5278] <... mount resumed>) = 0 [pid 5054] mkdir("./17", 0777 [pid 5278] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5279] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5278] <... openat resumed>) = 3 [pid 5275] <... close resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5278] chdir("./file2") = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5275] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5275] <... futex resumed>) = 1 [pid 5278] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5274] <... futex resumed>) = 0 [pid 5275] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5054] <... openat resumed>) = 3 [pid 5278] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5278] <... futex resumed>) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5275] openat(AT_FDCWD, ".", O_RDONLY [pid 5274] <... futex resumed>) = 0 [pid 5051] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5278] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5276] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... openat resumed>) = 4 [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5276] <... futex resumed>) = 0 [pid 5275] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 89.277194][ T5278] loop4: detected capacity change from 0 to 1024 [ 89.288073][ T5279] loop5: detected capacity change from 0 to 1024 [pid 5278] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] <... futex resumed>) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./17/file2", [pid 5275] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] <... futex resumed>) = 0 [pid 5278] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5278] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5051] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5275] openat(AT_FDCWD, ".", O_RDONLY [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... ioctl resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5276] <... futex resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5276] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] newfstatat(4, "", [pid 5278] <... futex resumed>) = 0 [pid 5276] <... futex resumed>) = 1 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5278] memfd_create("syzkaller", 0 [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] getdents64(4, [pid 5278] <... memfd_create resumed>) = 4 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] getdents64(4, [pid 5278] <... mmap resumed>) = 0x7f6dade00000 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5051] rmdir("./17/file2") = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] close(3 [pid 5275] <... openat resumed>) = 5 [pid 5053] close(3 [pid 5051] <... close resumed>) = 0 [pid 5275] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... close resumed>) = 0 [pid 5051] rmdir("./17" [pid 5275] <... futex resumed>) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5275] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] <... futex resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5279] <... mount resumed>) = 0 [pid 5275] renameat2(5, "./file2", 4, "./file1", 0 [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5280 [pid 5051] mkdir("./18", 0777 [pid 5279] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5275] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 5280 attached [pid 5279] <... openat resumed>) = 3 [pid 5275] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... mkdir resumed>) = 0 [pid 5279] chdir("./file2" [pid 5275] <... futex resumed>) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5279] <... chdir resumed>) = 0 [pid 5275] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5280] set_robust_list(0x555556b376a0, 24 [pid 5279] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5275] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5280] <... set_robust_list resumed>) = 0 [pid 5280] chdir("./18" [pid 5051] <... openat resumed>) = 3 [pid 5280] <... chdir resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5279] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5280] <... prctl resumed>) = 0 [pid 5280] setpgid(0, 0) = 0 [pid 5275] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5279] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5275] <... futex resumed>) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5280] <... openat resumed>) = 3 [pid 5279] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5278] <... write resumed>) = 524288 [pid 5277] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5054] <... ioctl resumed>) = 0 [pid 5280] write(3, "1000", 4 [pid 5274] exit_group(0) = ? [pid 5280] <... write resumed>) = 4 [pid 5277] <... futex resumed>) = 0 [pid 5280] close(3 [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5280] <... close resumed>) = 0 [pid 5280] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5279] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5275] <... futex resumed>) = ? [pid 5054] close(3) = 0 [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] +++ exited with 0 +++ [pid 5274] +++ exited with 0 +++ [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5280] <... futex resumed>) = 0 [pid 5279] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5278] munmap(0x7f6dade00000, 138412032 [pid 5280] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5279] <... futex resumed>) = 1 [pid 5278] <... munmap resumed>) = 0 [pid 5277] <... futex resumed>) = 0 [pid 5052] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5281 attached [pid 5277] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5280] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5052] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5281] set_robust_list(0x555556b376a0, 24 [pid 5280] <... mmap resumed>) = 0x7f6db6363000 [pid 5279] memfd_create("syzkaller", 0 [pid 5052] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5280] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5279] <... memfd_create resumed>) = 4 [pid 5278] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5280] <... mprotect resumed>) = 0 [pid 5278] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] unlink("./17/binderfs" [pid 5281] <... set_robust_list resumed>) = 0 [pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... unlink resumed>) = 0 [pid 5281] chdir("./17" [pid 5280] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5279] <... mmap resumed>) = 0x7f6dade00000 [pid 5278] close(4 [pid 5052] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5281] <... chdir resumed>) = 0 [pid 5280] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5279] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5278] <... close resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5281 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5280] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5052] <... umount2 resumed>) = 0 [pid 5281] <... prctl resumed>) = 0 [pid 5281] setpgid(0, 0 [pid 5280] <... clone3 resumed> => {parent_tid=[5282]}, 88) = 5282 [pid 5281] <... setpgid resumed>) = 0 [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5280] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5280] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5282 attached [pid 5281] <... openat resumed>) = 3 [pid 5282] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5052] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5278] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5276] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] write(3, "1000", 4) = 4 [pid 5278] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5278] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5276] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] close(3) = 0 [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] symlink("/dev/binderfs", "./binderfs" [pid 5282] <... rseq resumed>) = 0 [pid 5278] openat(AT_FDCWD, ".", O_RDONLY [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5282] set_robust_list(0x7f6db63839a0, 24 [pid 5278] <... openat resumed>) = 5 [pid 5052] newfstatat(AT_FDCWD, "./17/file2", [pid 5282] <... set_robust_list resumed>) = 0 [pid 5281] <... symlink resumed>) = 0 [pid 5279] <... write resumed>) = 524288 [pid 5278] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5282] rt_sigprocmask(SIG_SETMASK, [], [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5279] munmap(0x7f6dade00000, 138412032 [pid 5282] memfd_create("syzkaller", 0 [pid 5281] <... futex resumed>) = 0 [pid 5278] <... futex resumed>) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5052] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... ioctl resumed>) = 0 [pid 5051] close(3) = 0 [pid 5276] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... memfd_create resumed>) = 3 [pid 5276] <... futex resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5283 attached [pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5281] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5278] renameat2(5, "./file2", 4, "./file1", 0 [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5283] set_robust_list(0x555556b376a0, 24 [pid 5282] <... mmap resumed>) = 0x7f6dade00000 [pid 5278] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5283 [pid 5052] <... openat resumed>) = 4 [pid 5279] <... munmap resumed>) = 0 [pid 5279] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5279] close(4 [pid 5282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5283] <... set_robust_list resumed>) = 0 [pid 5281] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5278] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5278] <... futex resumed>) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5283] chdir("./18" [pid 5276] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5052] getdents64(4, [pid 5281] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5276] <... futex resumed>) = 0 [pid 5281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5276] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... mmap resumed>) = 0x7f6db6363000 [pid 5278] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5052] getdents64(4, [pid 5281] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5283] <... chdir resumed>) = 0 [pid 5279] <... close resumed>) = 0 [pid 5278] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5281] <... mprotect resumed>) = 0 [pid 5278] <... futex resumed>) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5283] <... prctl resumed>) = 0 [pid 5281] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5283] setpgid(0, 0 [pid 5281] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5278] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5276] exit_group(0 [pid 5052] close(4 [pid 5283] <... setpgid resumed>) = 0 [pid 5281] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5278] <... futex resumed>) = ? [pid 5276] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5284 attached [pid 5284] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5284] set_robust_list(0x7f6db63839a0, 24 [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5282] <... write resumed>) = 524288 [pid 5281] <... clone3 resumed> => {parent_tid=[5284]}, 88) = 5284 [pid 5279] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] +++ exited with 0 +++ [pid 5276] +++ exited with 0 +++ [pid 5052] <... close resumed>) = 0 [pid 5284] <... set_robust_list resumed>) = 0 [pid 5283] <... openat resumed>) = 3 [pid 5282] munmap(0x7f6dade00000, 138412032 [pid 5281] rt_sigprocmask(SIG_SETMASK, [], [pid 5279] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5052] rmdir("./17/file2" [pid 5284] rt_sigprocmask(SIG_SETMASK, [], [pid 5283] write(3, "1000", 4 [pid 5282] <... munmap resumed>) = 0 [pid 5281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5279] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5277] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... rmdir resumed>) = 0 [pid 5284] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5283] <... write resumed>) = 4 [pid 5282] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5281] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5277] <... futex resumed>) = 0 [pid 5052] getdents64(3, [pid 5284] memfd_create("syzkaller", 0 [pid 5283] close(3 [pid 5282] <... openat resumed>) = 4 [pid 5281] <... futex resumed>) = 0 [pid 5279] openat(AT_FDCWD, ".", O_RDONLY [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5284] <... memfd_create resumed>) = 3 [pid 5283] <... close resumed>) = 0 [pid 5282] ioctl(4, LOOP_SET_FD, 3 [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5279] <... openat resumed>) = 4 [pid 5055] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(3 [pid 5284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5283] symlink("/dev/binderfs", "./binderfs" [pid 5279] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5284] <... mmap resumed>) = 0x7f6dade00000 [pid 5279] <... futex resumed>) = 1 [pid 5055] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5279] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... openat resumed>) = 3 [pid 5055] newfstatat(3, "", [pid 5277] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] rmdir("./17" [pid 5283] <... symlink resumed>) = 0 [pid 5055] getdents64(3, [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... ioctl resumed>) = 0 [pid 5277] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... rmdir resumed>) = 0 [pid 5283] <... futex resumed>) = 0 [pid 5282] close(3 [pid 5279] <... futex resumed>) = 0 [pid 5277] <... futex resumed>) = 1 [pid 5055] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] mkdir("./18", 0777 [pid 5283] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5282] <... close resumed>) = 0 [pid 5279] openat(AT_FDCWD, ".", O_RDONLY [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5283] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5282] close(4 [pid 5279] <... openat resumed>) = 5 [pid 5055] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5052] <... mkdir resumed>) = 0 [pid 5284] <... write resumed>) = 524288 [pid 5283] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5282] <... close resumed>) = 0 [pid 5279] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5284] munmap(0x7f6dade00000, 138412032 [pid 5283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5282] mkdir("./file2", 0777 [pid 5279] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5282] <... mkdir resumed>) = 0 [pid 5279] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5277] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] unlink("./18/binderfs" [pid 5283] <... mmap resumed>) = 0x7f6db6363000 [pid 5282] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5277] <... futex resumed>) = 0 [pid 5284] <... munmap resumed>) = 0 [pid 5283] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5282] <... mount resumed>) = 0 [pid 5279] renameat2(5, "./file2", 4, "./file1", 0 [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... unlink resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5283] <... mprotect resumed>) = 0 [pid 5282] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5279] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5284] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5283] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5282] <... openat resumed>) = 3 [pid 5055] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5284] <... openat resumed>) = 4 [pid 5283] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5282] chdir("./file2" [pid 5279] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] ioctl(4, LOOP_SET_FD, 3 [pid 5283] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5282] <... chdir resumed>) = 0 [pid 5279] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5277] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT) = -1 EFAULT (Bad address) [pid 5277] <... futex resumed>) = 0 [pid 5279] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5285 attached ) = 0 [pid 5285] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5279] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5285] <... rseq resumed>) = 0 [pid 5285] set_robust_list(0x7f6db63839a0, 24 [pid 5283] <... clone3 resumed> => {parent_tid=[5285]}, 88) = 5285 [pid 5282] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5277] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... set_robust_list resumed>) = 0 [pid 5283] rt_sigprocmask(SIG_SETMASK, [], [pid 5282] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5277] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5285] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5282] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5277] exit_group(0 [pid 5055] <... umount2 resumed>) = 0 [pid 5055] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5284] <... ioctl resumed>) = 0 [pid 5283] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5279] <... futex resumed>) = ? [pid 5277] <... exit_group resumed>) = ? [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5285] <... futex resumed>) = 0 [pid 5284] close(3 [pid 5283] <... futex resumed>) = 1 [pid 5282] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5280] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] +++ exited with 0 +++ [pid 5277] +++ exited with 0 +++ [pid 5285] memfd_create("syzkaller", 0 [pid 5284] <... close resumed>) = 0 [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5280] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./18/file2", [pid 5285] <... memfd_create resumed>) = 3 [pid 5284] close(4 [pid 5282] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5284] <... close resumed>) = 0 [pid 5282] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5285] <... mmap resumed>) = 0x7f6dade00000 [pid 5282] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5284] mkdir("./file2", 0777 [pid 5282] <... futex resumed>) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5052] <... ioctl resumed>) = 0 [pid 5284] <... mkdir resumed>) = 0 [pid 5282] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5280] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 4 [pid 5282] memfd_create("syzkaller", 0 [pid 5055] newfstatat(4, "", [pid 5282] <... memfd_create resumed>) = 4 [pid 5056] newfstatat(3, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5284] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5282] <... mmap resumed>) = 0x7f6dade00000 [pid 5282] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] getdents64(3, [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [ 89.475629][ T5282] loop2: detected capacity change from 0 to 1024 [ 89.503187][ T5284] loop3: detected capacity change from 0 to 1024 [pid 5055] close(4 [pid 5285] <... write resumed>) = 524288 [pid 5284] <... mount resumed>) = 0 [pid 5282] <... write resumed>) = 524288 [pid 5056] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(3 [pid 5055] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5284] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5284] <... openat resumed>) = 3 [pid 5282] munmap(0x7f6dade00000, 138412032./strace-static-x86_64: Process 5286 attached [pid 5055] rmdir("./18/file2" [pid 5286] set_robust_list(0x555556b376a0, 24 [pid 5284] chdir("./file2" [pid 5282] <... munmap resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5286] <... set_robust_list resumed>) = 0 [pid 5286] chdir("./18" [pid 5284] <... chdir resumed>) = 0 [pid 5282] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5286 [pid 5286] <... chdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5055] getdents64(3, [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5284] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5282] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5286] <... prctl resumed>) = 0 [pid 5284] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5282] close(4 [pid 5055] close(3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5286] setpgid(0, 0 [pid 5285] munmap(0x7f6dade00000, 138412032 [pid 5284] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... close resumed>) = 0 [pid 5056] unlink("./17/binderfs" [pid 5055] <... close resumed>) = 0 [pid 5286] <... setpgid resumed>) = 0 [pid 5284] <... futex resumed>) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5281] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5281] <... futex resumed>) = 0 [pid 5286] write(3, "1000", 4) = 4 [pid 5284] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... unlink resumed>) = 0 [pid 5055] rmdir("./18" [pid 5286] close(3) = 0 [pid 5285] <... munmap resumed>) = 0 [pid 5286] symlink("/dev/binderfs", "./binderfs" [pid 5055] <... rmdir resumed>) = 0 [pid 5284] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5282] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5282] openat(AT_FDCWD, ".", O_RDONLY [pid 5280] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... openat resumed>) = 4 [pid 5280] <... futex resumed>) = 0 [pid 5282] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5284] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5280] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5282] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5281] <... futex resumed>) = 0 [pid 5280] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 1 [pid 5282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5281] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5282] openat(AT_FDCWD, ".", O_RDONLY [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5286] <... symlink resumed>) = 0 [pid 5284] memfd_create("syzkaller", 0 [pid 5282] <... openat resumed>) = 5 [pid 5281] <... futex resumed>) = 0 [pid 5056] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5284] <... memfd_create resumed>) = 4 [pid 5282] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] mkdir("./19", 0777 [pid 5285] <... openat resumed>) = 4 [pid 5284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5282] <... futex resumed>) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5284] <... mmap resumed>) = 0x7f6dade00000 [pid 5280] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] ioctl(4, LOOP_SET_FD, 3 [pid 5282] renameat2(5, "./file2", 4, "./file1", 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5286] <... futex resumed>) = 0 [pid 5282] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5056] <... umount2 resumed>) = 0 [pid 5282] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT) = -1 EFAULT (Bad address) [pid 5282] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] exit_group(0) = ? [pid 5282] <... futex resumed>) = ? [pid 5286] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5282] +++ exited with 0 +++ [pid 5280] +++ exited with 0 +++ [pid 5056] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./17/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5284] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5286] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5285] <... ioctl resumed>) = 0 [pid 5284] <... write resumed>) = 524288 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5286] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] <... openat resumed>) = 3 [pid 5286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5053] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(4, "", [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5286] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5286] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5285] close(3 [pid 5056] getdents64(4, [pid 5053] <... openat resumed>) = 3 [pid 5286] <... mprotect resumed>) = 0 [pid 5285] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] newfstatat(3, "", [pid 5284] munmap(0x7f6dade00000, 138412032 [pid 5285] close(4 [pid 5056] getdents64(4, [pid 5285] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5285] mkdir("./file2", 0777 [pid 5056] close(4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5285] <... mkdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./17/file2") = 0 [pid 5286] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5285] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5284] <... munmap resumed>) = 0 [pid 5053] getdents64(3, [pid 5284] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5286] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5284] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] getdents64(3, [pid 5053] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5287 attached [pid 5284] close(4 [pid 5056] close(3 [pid 5053] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5287] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5286] <... clone3 resumed> => {parent_tid=[5287]}, 88) = 5287 [pid 5284] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5287] <... rseq resumed>) = 0 [pid 5053] unlink("./18/binderfs" [pid 5286] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] <... close resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5286] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] rmdir("./17" [pid 5287] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5286] <... futex resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5287] memfd_create("syzkaller", 0 [pid 5056] mkdir("./18", 0777 [pid 5287] <... memfd_create resumed>) = 3 [pid 5287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5056] <... mkdir resumed>) = 0 [ 89.593472][ T5285] loop0: detected capacity change from 0 to 1024 [pid 5284] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5285] <... mount resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5053] <... umount2 resumed>) = 0 [pid 5285] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5284] <... futex resumed>) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... ioctl resumed>) = 0 [pid 5281] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5287] <... write resumed>) = 524288 [pid 5285] <... openat resumed>) = 3 [pid 5284] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] close(3 [pid 5053] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5285] chdir("./file2" [pid 5055] <... close resumed>) = 0 [pid 5285] <... chdir resumed>) = 0 [pid 5284] <... openat resumed>) = 4 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./18/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5288 attached [pid 5287] munmap(0x7f6dade00000, 138412032 [pid 5285] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5284] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5288 [pid 5053] newfstatat(4, "", [pid 5288] set_robust_list(0x555556b376a0, 24 [pid 5287] <... munmap resumed>) = 0 [pid 5285] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 1 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5288] <... set_robust_list resumed>) = 0 [pid 5287] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5285] <... futex resumed>) = 1 [pid 5284] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = 0 [pid 5053] getdents64(4, [pid 5288] chdir("./19" [pid 5287] <... openat resumed>) = 4 [pid 5285] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5288] <... chdir resumed>) = 0 [pid 5287] ioctl(4, LOOP_SET_FD, 3 [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] <... futex resumed>) = 0 [pid 5283] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = 1 [pid 5053] getdents64(4, [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5285] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5284] openat(AT_FDCWD, ".", O_RDONLY [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] <... prctl resumed>) = 0 [pid 5288] setpgid(0, 0) = 0 [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5288] write(3, "1000", 4) = 4 [pid 5288] close(3) = 0 [pid 5288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... openat resumed>) = 5 [pid 5288] <... futex resumed>) = 0 [pid 5284] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5288] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5288] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5285] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5285] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5053] close(4 [pid 5288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5287] <... ioctl resumed>) = 0 [pid 5285] <... futex resumed>) = 1 [pid 5284] renameat2(5, "./file2", 4, "./file1", 0 [pid 5283] <... futex resumed>) = 0 [pid 5281] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... ioctl resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5287] close(3 [pid 5284] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5287] <... close resumed>) = 0 [pid 5283] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] <... futex resumed>) = 0 [pid 5056] close(3 [pid 5053] rmdir("./18/file2" [pid 5284] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] close(4 [pid 5283] <... futex resumed>) = 0 [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... close resumed>) = 0 [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5287] <... close resumed>) = 0 [pid 5281] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5281] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5289 attached [pid 5287] mkdir("./file2", 0777 [pid 5281] <... futex resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5284] <... futex resumed>) = 0 [pid 5289] set_robust_list(0x555556b376a0, 24 [pid 5281] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5289 ./strace-static-x86_64: Process 5290 attached [pid 5289] <... set_robust_list resumed>) = 0 [pid 5288] <... clone3 resumed> => {parent_tid=[5290]}, 88) = 5290 [pid 5287] <... mkdir resumed>) = 0 [pid 5285] memfd_create("syzkaller", 0 [pid 5284] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5053] getdents64(3, [pid 5290] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5289] chdir("./18" [pid 5288] rt_sigprocmask(SIG_SETMASK, [], [pid 5287] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5285] <... memfd_create resumed>) = 4 [pid 5284] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5290] <... rseq resumed>) = 0 [pid 5289] <... chdir resumed>) = 0 [pid 5288] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5284] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] close(3 [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5288] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... mmap resumed>) = 0x7f6dade00000 [pid 5284] <... futex resumed>) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5290] set_robust_list(0x7f6db63839a0, 24 [pid 5289] <... prctl resumed>) = 0 [pid 5288] <... futex resumed>) = 0 [pid 5284] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5281] exit_group(0 [pid 5053] rmdir("./18" [pid 5290] <... set_robust_list resumed>) = 0 [pid 5289] setpgid(0, 0 [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5284] <... futex resumed>) = ? [pid 5281] <... exit_group resumed>) = ? [pid 5290] rt_sigprocmask(SIG_SETMASK, [], [pid 5289] <... setpgid resumed>) = 0 [pid 5284] +++ exited with 0 +++ [pid 5053] <... rmdir resumed>) = 0 [pid 5290] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] <... mount resumed>) = 0 [pid 5281] +++ exited with 0 +++ [pid 5290] memfd_create("syzkaller", 0 [pid 5287] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5285] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5290] <... memfd_create resumed>) = 3 [ 89.685693][ T5287] loop1: detected capacity change from 0 to 1024 [pid 5289] <... openat resumed>) = 3 [pid 5287] <... openat resumed>) = 3 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5289] write(3, "1000", 4 [pid 5287] chdir("./file2" [pid 5285] <... write resumed>) = 524288 [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5053] mkdir("./19", 0777 [pid 5289] <... write resumed>) = 4 [pid 5290] <... mmap resumed>) = 0x7f6dade00000 [pid 5289] close(3 [pid 5054] <... restart_syscall resumed>) = 0 [pid 5289] <... close resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5289] symlink("/dev/binderfs", "./binderfs" [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5289] <... symlink resumed>) = 0 [pid 5287] <... chdir resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5287] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5054] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5287] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5287] <... futex resumed>) = 1 [pid 5054] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] <... futex resumed>) = 0 [pid 5289] <... futex resumed>) = 0 [pid 5287] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... openat resumed>) = 3 [pid 5289] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] <... futex resumed>) = 0 [pid 5054] newfstatat(3, "", [pid 5289] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5287] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5289] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5054] getdents64(3, [pid 5289] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5290] <... write resumed>) = 524288 [pid 5289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5287] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5285] munmap(0x7f6dade00000, 138412032 [pid 5289] <... mmap resumed>) = 0x7f6db6363000 [pid 5054] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5289] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5285] <... munmap resumed>) = 0 [pid 5289] <... mprotect resumed>) = 0 [pid 5289] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5289] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5289] <... clone3 resumed> => {parent_tid=[5291]}, 88) = 5291 [pid 5289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5289] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] unlink("./17/binderfs" [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5290] munmap(0x7f6dade00000, 138412032 [pid 5285] close(4 [pid 5054] <... unlink resumed>) = 0 [pid 5290] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5291 attached [pid 5287] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... close resumed>) = 0 [pid 5054] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5285] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5290] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5287] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = 0 [pid 5285] <... futex resumed>) = 1 [pid 5283] <... futex resumed>) = 0 [pid 5291] <... rseq resumed>) = 0 [pid 5287] memfd_create("syzkaller", 0 [pid 5286] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] set_robust_list(0x7f6db63839a0, 24 [pid 5290] <... openat resumed>) = 4 [pid 5287] <... memfd_create resumed>) = 4 [pid 5286] <... futex resumed>) = 0 [pid 5285] openat(AT_FDCWD, ".", O_RDONLY [pid 5283] <... futex resumed>) = 0 [pid 5291] <... set_robust_list resumed>) = 0 [pid 5290] ioctl(4, LOOP_SET_FD, 3 [pid 5287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5285] <... openat resumed>) = 4 [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5291] rt_sigprocmask(SIG_SETMASK, [], [pid 5287] <... mmap resumed>) = 0x7f6dade00000 [pid 5285] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = 0 [pid 5283] <... futex resumed>) = 0 [pid 5283] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 1 [pid 5291] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5290] <... ioctl resumed>) = 0 [pid 5287] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5285] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... ioctl resumed>) = 0 [pid 5291] memfd_create("syzkaller", 0 [pid 5290] close(3 [pid 5287] <... write resumed>) = 524288 [pid 5285] <... openat resumed>) = 5 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] close(3 [pid 5290] <... close resumed>) = 0 [pid 5290] close(4) = 0 [pid 5290] mkdir("./file2", 0777 [pid 5291] <... memfd_create resumed>) = 3 [pid 5290] <... mkdir resumed>) = 0 [pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5290] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5054] newfstatat(AT_FDCWD, "./17/file2", [pid 5053] <... close resumed>) = 0 [pid 5287] munmap(0x7f6dade00000, 138412032 [pid 5285] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5283] <... futex resumed>) = 0 [pid 5285] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5283] <... futex resumed>) = 0 [pid 5285] renameat2(5, "./file2", 4, "./file1", 0 [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5291] <... write resumed>) = 524288 [pid 5290] <... mount resumed>) = 0 [pid 5287] <... munmap resumed>) = 0 [pid 5285] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5287] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5285] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5283] <... futex resumed>) = 0 [pid 5283] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5292 attached [pid 5287] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5285] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5283] <... futex resumed>) = 0 [pid 5054] umount2("./17/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5283] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5287] close(4 [pid 5285] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5285] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5290] <... openat resumed>) = 3 [pid 5054] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5292] set_robust_list(0x555556b376a0, 24 [pid 5290] chdir("./file2" [pid 5054] <... openat resumed>) = 4 [pid 5292] <... set_robust_list resumed>) = 0 [ 89.790503][ T5290] loop4: detected capacity change from 0 to 1024 [pid 5292] chdir("./19" [pid 5290] <... chdir resumed>) = 0 [pid 5287] <... close resumed>) = 0 [pid 5285] <... futex resumed>) = 1 [pid 5283] <... futex resumed>) = 0 [pid 5054] newfstatat(4, "", [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5292 [pid 5290] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5290] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] getdents64(4, [pid 5290] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5290] <... futex resumed>) = 1 [pid 5288] <... futex resumed>) = 0 [pid 5054] getdents64(4, [pid 5290] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5288] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5292] <... chdir resumed>) = 0 [pid 5288] <... futex resumed>) = 0 [pid 5287] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] exit_group(0 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5291] munmap(0x7f6dade00000, 138412032 [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5287] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = 0 [pid 5285] <... futex resumed>) = ? [pid 5283] <... exit_group resumed>) = ? [pid 5054] close(4 [pid 5292] <... prctl resumed>) = 0 [pid 5291] <... munmap resumed>) = 0 [pid 5290] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5287] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] +++ exited with 0 +++ [pid 5054] <... close resumed>) = 0 [pid 5292] setpgid(0, 0 [pid 5287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] rmdir("./17/file2" [pid 5292] <... setpgid resumed>) = 0 [pid 5291] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] <... rmdir resumed>) = 0 [pid 5290] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5291] <... openat resumed>) = 4 [pid 5290] <... futex resumed>) = 1 [pid 5288] <... futex resumed>) = 0 [pid 5287] openat(AT_FDCWD, ".", O_RDONLY [pid 5292] <... openat resumed>) = 3 [pid 5291] ioctl(4, LOOP_SET_FD, 3 [pid 5290] memfd_create("syzkaller", 0 [pid 5288] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... openat resumed>) = 4 [pid 5286] <... futex resumed>) = 0 [pid 5054] getdents64(3, [pid 5292] write(3, "1000", 4 [pid 5290] <... memfd_create resumed>) = 4 [pid 5288] <... futex resumed>) = 0 [pid 5287] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5292] <... write resumed>) = 4 [pid 5291] <... ioctl resumed>) = 0 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5287] <... futex resumed>) = 0 [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5292] close(3 [pid 5291] close(3 [pid 5287] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5292] <... close resumed>) = 0 [pid 5291] <... close resumed>) = 0 [pid 5286] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] symlink("/dev/binderfs", "./binderfs" [pid 5291] close(4 [pid 5290] <... mmap resumed>) = 0x7f6dade00000 [pid 5287] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = 1 [pid 5054] close(3 [pid 5051] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5292] <... symlink resumed>) = 0 [pid 5291] <... close resumed>) = 0 [pid 5290] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5287] openat(AT_FDCWD, ".", O_RDONLY [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5291] mkdir("./file2", 0777 [pid 5051] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5051] newfstatat(3, "", [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5287] <... openat resumed>) = 5 [pid 5051] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5292] <... futex resumed>) = 0 [pid 5287] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5287] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5292] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5286] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] renameat2(5, "./file2", 4, "./file1", 0 [pid 5286] <... futex resumed>) = 0 [pid 5292] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5291] <... mkdir resumed>) = 0 [pid 5287] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5287] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5287] <... futex resumed>) = 0 [pid 5286] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5287] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5286] <... futex resumed>) = 0 [pid 5292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5286] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5287] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5287] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] <... mmap resumed>) = 0x7f6db6363000 [pid 5291] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5287] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = 0 [pid 5054] rmdir("./17" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5292] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5287] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] exit_group(0 [pid 5054] <... rmdir resumed>) = 0 [pid 5286] <... exit_group resumed>) = ? [pid 5054] mkdir("./18", 0777 [pid 5292] <... mprotect resumed>) = 0 [pid 5051] unlink("./18/binderfs" [pid 5292] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5287] <... futex resumed>) = ? [pid 5054] <... mkdir resumed>) = 0 [pid 5292] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5287] +++ exited with 0 +++ [pid 5286] +++ exited with 0 +++ [pid 5051] <... unlink resumed>) = 0 [pid 5292] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5292] <... clone3 resumed> => {parent_tid=[5293]}, 88) = 5293 [pid 5052] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5293 attached [pid 5292] rt_sigprocmask(SIG_SETMASK, [], [pid 5293] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5293] <... rseq resumed>) = 0 [pid 5292] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] set_robust_list(0x7f6db63839a0, 24 [pid 5292] <... futex resumed>) = 0 [pid 5293] <... set_robust_list resumed>) = 0 [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5291] <... mount resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] <... umount2 resumed>) = 0 [pid 5291] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5054] <... openat resumed>) = 3 [pid 5052] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5052] <... openat resumed>) = 3 [pid 5291] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5291] chdir("./file2" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5291] <... chdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5293] rt_sigprocmask(SIG_SETMASK, [], [pid 5291] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5293] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5293] memfd_create("syzkaller", 0 [pid 5291] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5290] <... write resumed>) = 524288 [pid 5293] <... memfd_create resumed>) = 3 [pid 5291] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] munmap(0x7f6dade00000, 138412032 [pid 5052] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5291] <... futex resumed>) = 1 [pid 5290] <... munmap resumed>) = 0 [pid 5289] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5293] <... mmap resumed>) = 0x7f6dade00000 [pid 5291] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5289] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5291] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5289] <... futex resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5291] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5290] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] unlink("./18/binderfs" [pid 5051] newfstatat(AT_FDCWD, "./18/file2", [pid 5290] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] <... unlink resumed>) = 0 [pid 5290] close(4 [pid 5052] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5291] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5290] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5291] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", [pid 5291] <... futex resumed>) = 1 [pid 5290] <... futex resumed>) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5288] <... futex resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 89.865999][ T5291] loop5: detected capacity change from 0 to 1024 [pid 5291] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] openat(AT_FDCWD, ".", O_RDONLY [pid 5288] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] getdents64(4, [pid 5290] <... openat resumed>) = 4 [pid 5289] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] <... futex resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5290] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] getdents64(4, [pid 5290] <... futex resumed>) = 0 [pid 5288] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5291] <... futex resumed>) = 0 [pid 5290] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5289] <... futex resumed>) = 1 [pid 5288] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] close(4 [pid 5291] memfd_create("syzkaller", 0 [pid 5290] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5288] <... futex resumed>) = 0 [pid 5052] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5291] <... memfd_create resumed>) = 4 [pid 5290] openat(AT_FDCWD, ".", O_RDONLY [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./18/file2" [pid 5293] <... write resumed>) = 524288 [pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] newfstatat(AT_FDCWD, "./18/file2", [pid 5293] munmap(0x7f6dade00000, 138412032 [pid 5291] <... mmap resumed>) = 0x7f6dade00000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5293] <... munmap resumed>) = 0 [pid 5290] <... openat resumed>) = 5 [pid 5052] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5290] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5290] <... futex resumed>) = 1 [pid 5288] <... futex resumed>) = 0 [pid 5293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5290] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... openat resumed>) = 4 [pid 5051] getdents64(3, [pid 5293] <... openat resumed>) = 4 [pid 5291] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5290] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5288] <... futex resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5290] renameat2(5, "./file2", 4, "./file1", 0 [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5290] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5293] ioctl(4, LOOP_SET_FD, 3 [pid 5290] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(3 [pid 5290] <... futex resumed>) = 1 [pid 5288] <... futex resumed>) = 0 [pid 5052] getdents64(4, [pid 5290] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5288] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5288] <... futex resumed>) = 0 [pid 5288] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] <... futex resumed>) = 0 [pid 5288] exit_group(0) = ? [pid 5290] <... futex resumed>) = ? [pid 5293] <... ioctl resumed>) = 0 [pid 5291] <... write resumed>) = 524288 [pid 5054] <... ioctl resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... close resumed>) = 0 [pid 5293] close(3 [pid 5291] munmap(0x7f6dade00000, 138412032 [pid 5290] +++ exited with 0 +++ [pid 5288] +++ exited with 0 +++ [pid 5054] close(3 [pid 5052] getdents64(4, [pid 5051] rmdir("./18" [pid 5293] <... close resumed>) = 0 [pid 5291] <... munmap resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5054] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5293] close(4 [pid 5051] <... rmdir resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] close(4 [pid 5293] <... close resumed>) = 0 [pid 5291] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... close resumed>) = 0 [pid 5051] mkdir("./19", 0777 [pid 5055] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5291] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] rmdir("./18/file2" [pid 5051] <... mkdir resumed>) = 0 [pid 5291] close(4 [pid 5055] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... rmdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5291] <... close resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5052] getdents64(3, [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5294 attached [pid 5293] mkdir("./file2", 0777 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5294 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5294] set_robust_list(0x555556b376a0, 24 [pid 5055] getdents64(3, [pid 5052] close(3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5294] <... set_robust_list resumed>) = 0 [pid 5293] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... close resumed>) = 0 [pid 5055] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] rmdir("./18" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./19/binderfs") = 0 [pid 5052] mkdir("./19", 0777 [pid 5055] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... mkdir resumed>) = 0 [pid 5294] chdir("./18" [pid 5291] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5294] <... chdir resumed>) = 0 [pid 5291] <... futex resumed>) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5291] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5289] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5289] <... futex resumed>) = 0 [pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5291] openat(AT_FDCWD, ".", O_RDONLY [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... prctl resumed>) = 0 [pid 5291] <... openat resumed>) = 4 [pid 5052] <... openat resumed>) = 3 [pid 5294] setpgid(0, 0 [pid 5291] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... setpgid resumed>) = 0 [pid 5291] <... futex resumed>) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5291] openat(AT_FDCWD, ".", O_RDONLY [pid 5289] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5291] <... openat resumed>) = 5 [pid 5289] <... futex resumed>) = 0 [pid 5291] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... openat resumed>) = 3 [pid 5291] <... futex resumed>) = 0 [pid 5289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5291] renameat2(5, "./file2", 4, "./file1", 0 [pid 5289] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] write(3, "1000", 4 [pid 5289] <... futex resumed>) = 0 [pid 5294] <... write resumed>) = 4 [pid 5291] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] close(3 [pid 5291] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... close resumed>) = 0 [pid 5293] <... mount resumed>) = 0 [pid 5291] <... futex resumed>) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5294] symlink("/dev/binderfs", "./binderfs" [pid 5293] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5291] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5289] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = 0 [pid 5291] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... symlink resumed>) = 0 [pid 5293] <... openat resumed>) = 3 [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] chdir("./file2" [pid 5291] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5294] <... futex resumed>) = 0 [pid 5293] <... chdir resumed>) = 0 [pid 5294] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5291] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5291] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5294] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5293] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5291] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5289] exit_group(0 [pid 5294] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5293] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] <... futex resumed>) = ? [pid 5289] <... exit_group resumed>) = ? [pid 5294] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5293] <... futex resumed>) = 1 [pid 5292] <... futex resumed>) = 0 [pid 5291] +++ exited with 0 +++ [pid 5289] +++ exited with 0 +++ [pid 5055] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5293] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5292] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5294] <... mmap resumed>) = 0x7f6db6363000 [pid 5292] <... futex resumed>) = 0 [pid 5294] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] newfstatat(AT_FDCWD, "./19/file2", [pid 5294] <... mprotect resumed>) = 0 [pid 5294] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5294] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5293] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5055] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5293] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 89.938779][ T5293] loop2: detected capacity change from 0 to 1024 ./strace-static-x86_64: Process 5295 attached [pid 5056] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5295] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5294] <... clone3 resumed> => {parent_tid=[5295]}, 88) = 5295 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5295] <... rseq resumed>) = 0 [pid 5294] rt_sigprocmask(SIG_SETMASK, [], [pid 5293] <... futex resumed>) = 1 [pid 5292] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5295] set_robust_list(0x7f6db63839a0, 24 [pid 5294] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5292] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] <... set_robust_list resumed>) = 0 [pid 5294] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 4 [pid 5295] rt_sigprocmask(SIG_SETMASK, [], [pid 5294] <... futex resumed>) = 0 [pid 5293] memfd_create("syzkaller", 0 [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] newfstatat(3, "", [pid 5055] newfstatat(4, "", [pid 5295] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5293] <... memfd_create resumed>) = 4 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5295] memfd_create("syzkaller", 0 [pid 5293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] getdents64(4, [pid 5295] <... memfd_create resumed>) = 3 [pid 5293] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5293] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] close(4) = 0 [pid 5055] rmdir("./19/file2" [pid 5295] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] <... rmdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5052] <... ioctl resumed>) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] close(3) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] close(3 [pid 5293] <... write resumed>) = 524288 [pid 5056] unlink("./18/binderfs" [pid 5055] close(3 [pid 5052] <... close resumed>) = 0 ./strace-static-x86_64: Process 5296 attached [pid 5055] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5296] set_robust_list(0x555556b376a0, 24 [pid 5055] rmdir("./19" [pid 5296] <... set_robust_list resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5297 attached [pid 5296] chdir("./19" [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5296 [pid 5296] <... chdir resumed>) = 0 [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5296] setpgid(0, 0 [pid 5055] mkdir("./20", 0777 [pid 5296] <... setpgid resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5297 [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5296] write(3, "1000", 4 [pid 5297] set_robust_list(0x555556b376a0, 24 [pid 5296] <... write resumed>) = 4 [pid 5055] <... mkdir resumed>) = 0 [pid 5296] close(3 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5296] <... close resumed>) = 0 [pid 5296] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5295] <... write resumed>) = 524288 [pid 5055] <... openat resumed>) = 3 [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5296] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5298 attached [pid 5297] <... set_robust_list resumed>) = 0 [pid 5293] munmap(0x7f6dade00000, 138412032 [pid 5298] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5296] <... clone3 resumed> => {parent_tid=[5298]}, 88) = 5298 [pid 5298] set_robust_list(0x7f6db63839a0, 24 [pid 5296] rt_sigprocmask(SIG_SETMASK, [], [pid 5298] <... set_robust_list resumed>) = 0 [pid 5296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5298] rt_sigprocmask(SIG_SETMASK, [], [pid 5296] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5298] memfd_create("syzkaller", 0 [pid 5296] <... futex resumed>) = 0 [pid 5297] chdir("./19" [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5295] munmap(0x7f6dade00000, 138412032 [pid 5293] <... munmap resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5297] <... chdir resumed>) = 0 [pid 5298] <... memfd_create resumed>) = 3 [pid 5295] <... munmap resumed>) = 0 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5295] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5293] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5295] <... openat resumed>) = 4 [pid 5293] close(4 [pid 5297] <... prctl resumed>) = 0 [pid 5295] ioctl(4, LOOP_SET_FD, 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5298] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5297] setpgid(0, 0 [pid 5293] <... close resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./18/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5297] <... setpgid resumed>) = 0 [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5295] <... ioctl resumed>) = 0 [pid 5056] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5297] <... openat resumed>) = 3 [pid 5295] close(3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5297] write(3, "1000", 4 [pid 5295] <... close resumed>) = 0 [pid 5293] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5297] <... write resumed>) = 4 [pid 5295] close(4 [pid 5293] <... futex resumed>) = 1 [pid 5292] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5298] <... write resumed>) = 524288 [pid 5297] close(3 [pid 5295] <... close resumed>) = 0 [pid 5293] openat(AT_FDCWD, ".", O_RDONLY [pid 5292] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(4, "", [pid 5297] <... close resumed>) = 0 [pid 5295] mkdir("./file2", 0777 [pid 5292] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5297] symlink("/dev/binderfs", "./binderfs" [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5297] <... symlink resumed>) = 0 [pid 5056] rmdir("./18/file2" [pid 5295] <... mkdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5293] <... openat resumed>) = 4 [pid 5056] getdents64(3, [pid 5293] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5293] <... futex resumed>) = 1 [pid 5292] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] openat(AT_FDCWD, ".", O_RDONLY [pid 5292] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(3 [pid 5298] munmap(0x7f6dade00000, 138412032 [pid 5292] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5298] <... munmap resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5293] <... openat resumed>) = 5 [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] rmdir("./18" [pid 5298] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5297] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5293] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... openat resumed>) = 4 [pid 5297] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5295] <... mount resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5297] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5295] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5293] <... futex resumed>) = 1 [pid 5292] <... futex resumed>) = 0 [pid 5056] mkdir("./19", 0777 [pid 5298] ioctl(4, LOOP_SET_FD, 3 [pid 5297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5295] <... openat resumed>) = 3 [pid 5293] renameat2(5, "./file2", 4, "./file1", 0 [pid 5292] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... ioctl resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5292] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5055] <... ioctl resumed>) = 0 [pid 5298] close(3 [pid 5297] <... mmap resumed>) = 0x7f6db6363000 [pid 5295] chdir("./file2" [pid 5293] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 3 [pid 5055] close(3 [pid 5297] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5295] <... chdir resumed>) = 0 [pid 5293] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5297] <... mprotect resumed>) = 0 [pid 5295] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5293] <... futex resumed>) = 0 [pid 5292] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5297] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5295] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5293] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5292] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5299 attached [pid 5298] <... close resumed>) = 0 [pid 5297] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5295] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5292] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5299 [pid 5299] set_robust_list(0x555556b376a0, 24 [pid 5298] close(4 [pid 5297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5293] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5299] <... set_robust_list resumed>) = 0 [pid 5298] <... close resumed>) = 0 [pid 5294] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5292] exit_group(0 [pid 5298] mkdir("./file2", 0777 [pid 5294] <... futex resumed>) = 0 [pid 5292] <... exit_group resumed>) = ? [pid 5299] chdir("./20" [pid 5298] <... mkdir resumed>) = 0 [pid 5295] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5293] +++ exited with 0 +++ [pid 5299] <... chdir resumed>) = 0 [pid 5298] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5297] <... clone3 resumed> => {parent_tid=[5300]}, 88) = 5300 ./strace-static-x86_64: Process 5300 attached [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5297] rt_sigprocmask(SIG_SETMASK, [], [pid 5300] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5299] <... prctl resumed>) = 0 [pid 5297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5295] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5292] +++ exited with 0 +++ [pid 5300] <... rseq resumed>) = 0 [pid 5299] setpgid(0, 0 [pid 5297] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] set_robust_list(0x7f6db63839a0, 24 [pid 5297] <... futex resumed>) = 0 [pid 5300] <... set_robust_list resumed>) = 0 [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5300] rt_sigprocmask(SIG_SETMASK, [], [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5295] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5294] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5299] <... setpgid resumed>) = 0 [pid 5295] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5294] <... futex resumed>) = 0 [pid 5300] memfd_create("syzkaller", 0 [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5295] memfd_create("syzkaller", 0 [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5295] <... memfd_create resumed>) = 4 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [ 90.076456][ T5295] loop3: detected capacity change from 0 to 1024 [ 90.108097][ T5298] loop0: detected capacity change from 0 to 1024 [pid 5295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] <... openat resumed>) = 3 [pid 5300] <... memfd_create resumed>) = 3 [pid 5298] <... mount resumed>) = 0 [pid 5295] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] write(3, "1000", 4 [pid 5298] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5056] <... ioctl resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5298] <... openat resumed>) = 3 [pid 5053] <... openat resumed>) = 3 [pid 5053] newfstatat(3, "", [pid 5299] <... write resumed>) = 4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5300] <... mmap resumed>) = 0x7f6dade00000 [pid 5299] close(3 [pid 5053] getdents64(3, [pid 5300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5299] <... close resumed>) = 0 [pid 5298] chdir("./file2" [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5298] <... chdir resumed>) = 0 [pid 5298] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5299] symlink("/dev/binderfs", "./binderfs" [pid 5298] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5299] <... symlink resumed>) = 0 [pid 5298] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5298] <... futex resumed>) = 1 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5298] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5296] <... futex resumed>) = 0 [pid 5295] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] close(3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5299] <... futex resumed>) = 0 [pid 5298] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... close resumed>) = 0 [pid 5053] unlink("./19/binderfs" [pid 5298] <... futex resumed>) = 0 [pid 5296] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5296] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] memfd_create("syzkaller", 0 [pid 5300] <... write resumed>) = 524288 [pid 5299] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5298] <... memfd_create resumed>) = 4 [pid 5296] <... futex resumed>) = 0 [pid 5295] <... write resumed>) = 524288 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... unlink resumed>) = 0 [pid 5298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5299] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5298] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5301 [pid 5299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5299] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 5301 attached [pid 5301] set_robust_list(0x555556b376a0, 24 [pid 5299] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5298] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5299] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5302]}, 88) = 5302 [pid 5299] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5302 attached NULL, 8) = 0 [pid 5302] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5300] munmap(0x7f6dade00000, 138412032 [pid 5299] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... rseq resumed>) = 0 [pid 5301] <... set_robust_list resumed>) = 0 [pid 5299] <... futex resumed>) = 0 [pid 5302] set_robust_list(0x7f6db63839a0, 24 [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5295] munmap(0x7f6dade00000, 138412032 [pid 5053] <... umount2 resumed>) = 0 [pid 5302] <... set_robust_list resumed>) = 0 [pid 5301] chdir("./19" [pid 5295] <... munmap resumed>) = 0 [pid 5302] rt_sigprocmask(SIG_SETMASK, [], [pid 5300] <... munmap resumed>) = 0 [pid 5302] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5302] memfd_create("syzkaller", 0 [pid 5300] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5302] <... memfd_create resumed>) = 3 [pid 5300] <... openat resumed>) = 4 [pid 5295] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5301] <... chdir resumed>) = 0 [pid 5300] ioctl(4, LOOP_SET_FD, 3 [pid 5298] <... write resumed>) = 524288 [pid 5295] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5301] <... prctl resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./19/file2", [pid 5298] munmap(0x7f6dade00000, 138412032 [pid 5295] close(4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5301] setpgid(0, 0 [pid 5053] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5301] <... setpgid resumed>) = 0 [pid 5302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5300] <... ioctl resumed>) = 0 [pid 5298] <... munmap resumed>) = 0 [pid 5295] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5298] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5301] <... openat resumed>) = 3 [pid 5300] close(3 [pid 5053] <... openat resumed>) = 4 [pid 5298] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5300] <... close resumed>) = 0 [pid 5298] close(4 [pid 5302] <... write resumed>) = 524288 [pid 5301] write(3, "1000", 4 [pid 5300] close(4 [pid 5295] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] newfstatat(4, "", [pid 5302] munmap(0x7f6dade00000, 138412032 [pid 5301] <... write resumed>) = 4 [pid 5300] <... close resumed>) = 0 [pid 5302] <... munmap resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5294] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5302] ioctl(4, LOOP_SET_FD, 3 [pid 5295] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5301] close(3 [pid 5300] mkdir("./file2", 0777 [pid 5298] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(4, [pid 5298] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5295] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5300] <... mkdir resumed>) = 0 [pid 5295] openat(AT_FDCWD, ".", O_RDONLY [pid 5294] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... close resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5295] <... openat resumed>) = 5 [pid 5294] <... futex resumed>) = 0 [pid 5295] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] <... futex resumed>) = 0 [pid 5294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5295] renameat2(5, "./file2", 4, "./file1", 0 [pid 5294] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5294] <... futex resumed>) = 0 [pid 5295] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] <... futex resumed>) = 0 [pid 5294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5295] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5294] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5294] <... futex resumed>) = 0 [pid 5295] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] <... futex resumed>) = 0 [pid 5295] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5294] exit_group(0 [pid 5295] <... futex resumed>) = ? [pid 5294] <... exit_group resumed>) = ? [pid 5295] +++ exited with 0 +++ [pid 5294] +++ exited with 0 +++ [pid 5301] symlink("/dev/binderfs", "./binderfs" [pid 5300] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5296] <... futex resumed>) = 0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5053] getdents64(4, [pid 5296] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4 [pid 5296] <... futex resumed>) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5298] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5298] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5298] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] <... ioctl resumed>) = 0 [pid 5301] <... symlink resumed>) = 0 [pid 5300] <... mount resumed>) = 0 [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... close resumed>) = 0 [pid 5302] close(3 [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5296] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5302] <... close resumed>) = 0 [pid 5296] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] close(4 [pid 5300] <... openat resumed>) = 3 [pid 5301] <... futex resumed>) = 0 [pid 5300] chdir("./file2" [pid 5298] <... futex resumed>) = 0 [pid 5296] <... futex resumed>) = 1 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] rmdir("./19/file2" [pid 5301] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5300] <... chdir resumed>) = 0 [pid 5298] openat(AT_FDCWD, ".", O_RDONLY [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5298] <... openat resumed>) = 5 [pid 5302] <... close resumed>) = 0 [pid 5301] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5300] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5298] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] <... openat resumed>) = 3 [pid 5053] <... rmdir resumed>) = 0 [pid 5302] mkdir("./file2", 0777 [pid 5301] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5300] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5298] <... futex resumed>) = 0 [pid 5296] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(3, "", [pid 5053] getdents64(3, [pid 5302] <... mkdir resumed>) = 0 [pid 5301] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] renameat2(5, "./file2", 4, "./file1", 0 [pid 5296] <... futex resumed>) = 0 [pid 5301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5300] <... futex resumed>) = 1 [pid 5298] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5302] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5301] <... mmap resumed>) = 0x7f6db6363000 [pid 5300] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] getdents64(3, [pid 5053] close(3 [pid 5301] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5298] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5296] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... mprotect resumed>) = 0 [pid 5298] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5297] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] <... close resumed>) = 0 [pid 5301] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5300] <... futex resumed>) = 0 [pid 5298] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5297] <... futex resumed>) = 1 [pid 5296] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./19" [pid 5301] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5300] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5298] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5296] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 90.229740][ T5300] loop1: detected capacity change from 0 to 1024 [ 90.259297][ T5302] loop4: detected capacity change from 0 to 1024 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5302] <... mount resumed>) = 0 [pid 5301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5300] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5298] <... futex resumed>) = 0 [pid 5296] exit_group(0 [pid 5054] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5053] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5303 attached [pid 5302] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5300] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... exit_group resumed>) = ? [pid 5303] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5302] <... openat resumed>) = 3 [pid 5301] <... clone3 resumed> => {parent_tid=[5303]}, 88) = 5303 [pid 5300] <... futex resumed>) = 1 [pid 5298] +++ exited with 0 +++ [pid 5297] <... futex resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] mkdir("./20", 0777 [pid 5303] <... rseq resumed>) = 0 [pid 5302] chdir("./file2" [pid 5301] rt_sigprocmask(SIG_SETMASK, [], [pid 5300] memfd_create("syzkaller", 0 [pid 5297] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] set_robust_list(0x7f6db63839a0, 24 [pid 5302] <... chdir resumed>) = 0 [pid 5054] unlink("./18/binderfs" [pid 5303] <... set_robust_list resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5303] rt_sigprocmask(SIG_SETMASK, [], [pid 5302] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... unlink resumed>) = 0 [pid 5300] <... memfd_create resumed>) = 4 [pid 5303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5302] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5303] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] <... futex resumed>) = 1 [pid 5301] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] <... futex resumed>) = 0 [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5302] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5301] <... futex resumed>) = 0 [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5303] memfd_create("syzkaller", 0 [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5300] <... mmap resumed>) = 0x7f6dade00000 [pid 5299] <... futex resumed>) = 0 [pid 5296] +++ exited with 0 +++ [pid 5303] <... memfd_create resumed>) = 3 [pid 5302] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... openat resumed>) = 3 [pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5303] <... mmap resumed>) = 0x7f6dade00000 [pid 5302] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5051] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5302] <... futex resumed>) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5302] memfd_create("syzkaller", 0 [pid 5299] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... memfd_create resumed>) = 4 [pid 5299] <... futex resumed>) = 0 [pid 5302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] <... openat resumed>) = 3 [pid 5303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5302] <... mmap resumed>) = 0x7f6dade00000 [pid 5051] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] <... umount2 resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5303] <... write resumed>) = 524288 [pid 5300] <... write resumed>) = 524288 [pid 5054] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5302] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5051] unlink("./19/binderfs" [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./18/file2", [pid 5051] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] umount2("./18/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5303] munmap(0x7f6dade00000, 138412032 [pid 5054] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5303] <... munmap resumed>) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5303] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] newfstatat(4, "", [pid 5303] <... openat resumed>) = 4 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5303] ioctl(4, LOOP_SET_FD, 3 [pid 5054] getdents64(4, [pid 5302] <... write resumed>) = 524288 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] <... ioctl resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5054] getdents64(4, [pid 5053] close(3 [pid 5051] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... close resumed>) = 0 [pid 5054] close(4 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5304 attached [pid 5302] munmap(0x7f6dade00000, 138412032 [pid 5300] munmap(0x7f6dade00000, 138412032 [pid 5054] <... close resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./19/file2", [pid 5302] <... munmap resumed>) = 0 [pid 5300] <... munmap resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5300] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5304] set_robust_list(0x555556b376a0, 24 [pid 5054] rmdir("./18/file2" [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5304 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5300] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... rmdir resumed>) = 0 [pid 5304] <... set_robust_list resumed>) = 0 [pid 5054] getdents64(3, [pid 5051] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5304] chdir("./20" [pid 5303] <... ioctl resumed>) = 0 [pid 5302] close(4 [pid 5300] close(4 [pid 5054] close(3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5304] <... chdir resumed>) = 0 [pid 5303] close(3 [pid 5302] <... close resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5303] <... close resumed>) = 0 [pid 5054] rmdir("./18" [pid 5051] <... openat resumed>) = 4 [pid 5304] <... prctl resumed>) = 0 [pid 5303] close(4 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5304] setpgid(0, 0 [pid 5303] <... close resumed>) = 0 [pid 5054] mkdir("./19", 0777 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5304] <... setpgid resumed>) = 0 [pid 5303] mkdir("./file2", 0777 [pid 5302] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... mkdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5303] <... mkdir resumed>) = 0 [pid 5302] <... futex resumed>) = 1 [pid 5300] <... close resumed>) = 0 [pid 5299] <... futex resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5304] <... openat resumed>) = 3 [pid 5303] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5302] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... openat resumed>) = 3 [pid 5051] getdents64(4, [pid 5302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] <... futex resumed>) = 1 [pid 5297] <... futex resumed>) = 0 [ 90.353892][ T5303] loop5: detected capacity change from 0 to 1024 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5304] write(3, "1000", 4 [pid 5302] openat(AT_FDCWD, ".", O_RDONLY [pid 5300] openat(AT_FDCWD, ".", O_RDONLY [pid 5297] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(4 [pid 5304] <... write resumed>) = 4 [pid 5051] <... close resumed>) = 0 [pid 5304] close(3 [pid 5302] <... openat resumed>) = 4 [pid 5297] <... futex resumed>) = 0 [pid 5051] rmdir("./19/file2" [pid 5304] <... close resumed>) = 0 [pid 5302] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] <... openat resumed>) = 4 [pid 5299] <... futex resumed>) = 0 [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... rmdir resumed>) = 0 [pid 5304] symlink("/dev/binderfs", "./binderfs" [pid 5302] <... futex resumed>) = 0 [pid 5300] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] getdents64(3, [pid 5304] <... symlink resumed>) = 0 [pid 5299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5297] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5299] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5051] close(3 [pid 5300] openat(AT_FDCWD, ".", O_RDONLY [pid 5299] <... futex resumed>) = 0 [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... close resumed>) = 0 [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] <... openat resumed>) = 5 [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] rmdir("./19" [pid 5304] <... futex resumed>) = 0 [pid 5302] openat(AT_FDCWD, ".", O_RDONLY [pid 5300] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... rmdir resumed>) = 0 [pid 5304] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5302] <... openat resumed>) = 5 [pid 5300] <... futex resumed>) = 1 [pid 5297] <... futex resumed>) = 0 [pid 5304] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5300] renameat2(5, "./file2", 4, "./file1", 0 [pid 5297] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5051] mkdir("./20", 0777 [pid 5304] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5302] <... futex resumed>) = 1 [pid 5300] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5299] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5299] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5300] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] renameat2(5, "./file2", 4, "./file1", 0 [pid 5304] <... mmap resumed>) = 0x7f6db6363000 [pid 5300] <... futex resumed>) = 0 [pid 5299] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] <... mkdir resumed>) = 0 [pid 5304] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5300] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] <... mount resumed>) = 0 [pid 5304] <... mprotect resumed>) = 0 [pid 5302] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5303] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5300] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5297] <... futex resumed>) = 0 [pid 5297] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5300] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5300] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5303] <... openat resumed>) = 3 [pid 5300] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5303] chdir("./file2" [pid 5302] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] exit_group(0 [pid 5051] <... openat resumed>) = 3 [pid 5297] <... exit_group resumed>) = ? [pid 5300] <... futex resumed>) = ? [pid 5300] +++ exited with 0 +++ [pid 5303] <... chdir resumed>) = 0 [pid 5302] <... futex resumed>) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5299] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5299] <... futex resumed>) = 0 [pid 5303] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5299] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5302] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5304] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5303] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5302] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5302] <... futex resumed>) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5303] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] <... clone3 resumed> => {parent_tid=[5305]}, 88) = 5305 [pid 5303] <... futex resumed>) = 1 [pid 5301] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5305 attached [pid 5304] rt_sigprocmask(SIG_SETMASK, [], [pid 5303] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] exit_group(0 [pid 5305] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5304] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5302] <... futex resumed>) = ? [pid 5301] <... futex resumed>) = 0 [pid 5299] <... exit_group resumed>) = ? [pid 5305] <... rseq resumed>) = 0 [pid 5304] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5302] +++ exited with 0 +++ [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] +++ exited with 0 +++ [pid 5305] set_robust_list(0x7f6db63839a0, 24 [pid 5304] <... futex resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5305] <... set_robust_list resumed>) = 0 [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5305] rt_sigprocmask(SIG_SETMASK, [], [pid 5052] <... restart_syscall resumed>) = 0 [pid 5305] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5305] memfd_create("syzkaller", 0 [pid 5052] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5305] <... memfd_create resumed>) = 3 [pid 5303] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5299] +++ exited with 0 +++ [pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5052] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5305] <... mmap resumed>) = 0x7f6dade00000 [pid 5303] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5052] getdents64(3, [pid 5303] <... futex resumed>) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5055] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5303] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5301] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5303] memfd_create("syzkaller", 0 [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5303] <... memfd_create resumed>) = 4 [pid 5055] newfstatat(3, "", [pid 5052] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5303] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] getdents64(3, [pid 5052] unlink("./19/binderfs" [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... unlink resumed>) = 0 [pid 5055] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./20/binderfs" [pid 5305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5303] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] <... unlink resumed>) = 0 [pid 5303] <... write resumed>) = 524288 [pid 5052] <... umount2 resumed>) = 0 [pid 5055] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5305] <... write resumed>) = 524288 [pid 5303] munmap(0x7f6dade00000, 138412032 [pid 5054] <... ioctl resumed>) = 0 [pid 5052] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5054] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5305] munmap(0x7f6dade00000, 138412032 [pid 5303] <... munmap resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5305] <... munmap resumed>) = 0 [pid 5303] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] newfstatat(AT_FDCWD, "./19/file2", [pid 5305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5303] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5305] <... openat resumed>) = 4 [pid 5303] close(4 [pid 5052] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5306 attached [pid 5305] ioctl(4, LOOP_SET_FD, 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5305] <... ioctl resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5306] set_robust_list(0x555556b376a0, 24 [pid 5052] <... openat resumed>) = 4 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5306 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5055] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, [pid 5055] newfstatat(AT_FDCWD, "./20/file2", [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5303] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] close(4) = 0 [pid 5051] close(3 [pid 5052] rmdir("./19/file2" [pid 5051] <... close resumed>) = 0 [pid 5055] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(3, [pid 5055] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5052] close(3 [pid 5055] newfstatat(4, "", [pid 5052] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] rmdir("./19"./strace-static-x86_64: Process 5307 attached [pid 5055] getdents64(4, [pid 5052] <... rmdir resumed>) = 0 [pid 5307] set_robust_list(0x555556b376a0, 24 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] mkdir("./20", 0777 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5307 [pid 5307] <... set_robust_list resumed>) = 0 [pid 5055] getdents64(4, [pid 5052] <... mkdir resumed>) = 0 [pid 5307] chdir("./20" [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] close(4 [pid 5052] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./20/file2" [pid 5306] <... set_robust_list resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5303] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... chdir resumed>) = 0 [pid 5306] chdir("./19" [pid 5303] <... futex resumed>) = 1 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5303] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] <... prctl resumed>) = 0 [pid 5307] setpgid(0, 0 [pid 5306] <... chdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5307] <... setpgid resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] close(3) = 0 [pid 5055] rmdir("./20" [pid 5307] <... openat resumed>) = 3 [pid 5055] <... rmdir resumed>) = 0 [pid 5307] write(3, "1000", 4) = 4 [pid 5055] mkdir("./21", 0777 [pid 5307] close(3) = 0 [pid 5307] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5305] close(3 [pid 5301] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5306] <... prctl resumed>) = 0 [pid 5301] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] setpgid(0, 0) = 0 [pid 5303] <... futex resumed>) = 0 [pid 5301] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5305] <... close resumed>) = 0 [pid 5303] openat(AT_FDCWD, ".", O_RDONLY [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5307] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5305] close(4 [pid 5303] <... openat resumed>) = 4 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5307] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5306] <... openat resumed>) = 3 [pid 5305] <... close resumed>) = 0 [pid 5303] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5305] mkdir("./file2", 0777 [pid 5307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5305] <... mkdir resumed>) = 0 [pid 5303] <... futex resumed>) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5307] <... mmap resumed>) = 0x7f6db6363000 [pid 5306] write(3, "1000", 4 [pid 5301] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5306] <... write resumed>) = 4 [pid 5305] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5301] <... futex resumed>) = 0 [pid 5307] <... mprotect resumed>) = 0 [pid 5306] close(3 [pid 5303] openat(AT_FDCWD, ".", O_RDONLY [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5307] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5306] <... close resumed>) = 0 [pid 5303] <... openat resumed>) = 5 [pid 5052] <... ioctl resumed>) = 0 [pid 5307] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5306] symlink("/dev/binderfs", "./binderfs" [ 90.487485][ T5305] loop2: detected capacity change from 0 to 1024 [pid 5303] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5303] <... futex resumed>) = 1 [pid 5301] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5308 attached [pid 5306] <... symlink resumed>) = 0 [pid 5303] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] close(3 [pid 5308] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5301] <... futex resumed>) = 0 [pid 5307] <... clone3 resumed> => {parent_tid=[5308]}, 88) = 5308 [pid 5303] renameat2(5, "./file2", 4, "./file1", 0 [pid 5052] <... close resumed>) = 0 [pid 5308] <... rseq resumed>) = 0 [pid 5307] rt_sigprocmask(SIG_SETMASK, [], [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... mount resumed>) = 0 [pid 5303] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5307] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5306] <... futex resumed>) = 0 [pid 5305] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5303] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5308] set_robust_list(0x7f6db63839a0, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5309 [pid 5307] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5306] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5305] <... openat resumed>) = 3 [pid 5305] chdir("./file2" [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5305] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5309 attached [pid 5306] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5309] set_robust_list(0x555556b376a0, 24 [pid 5306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5305] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5309] <... set_robust_list resumed>) = 0 [pid 5306] <... mmap resumed>) = 0x7f6db6363000 [pid 5305] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5309] chdir("./20" [pid 5306] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5305] <... futex resumed>) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5306] <... mprotect resumed>) = 0 [pid 5305] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5304] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... set_robust_list resumed>) = 0 [pid 5304] <... futex resumed>) = 0 [pid 5301] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] rt_sigprocmask(SIG_SETMASK, [], [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] <... futex resumed>) = 0 [pid 5303] <... futex resumed>) = 0 [pid 5308] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5306] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5303] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5301] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5306] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5303] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5309] <... chdir resumed>) = 0 [pid 5308] memfd_create("syzkaller", 0 [pid 5306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5305] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5303] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5310 attached [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5308] <... memfd_create resumed>) = 3 [pid 5305] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] <... futex resumed>) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5310] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5309] <... prctl resumed>) = 0 [pid 5308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5305] <... futex resumed>) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5303] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] exit_group(0 [pid 5310] <... rseq resumed>) = 0 [pid 5309] setpgid(0, 0 [pid 5308] <... mmap resumed>) = 0x7f6dade00000 [pid 5305] memfd_create("syzkaller", 0 [pid 5304] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] <... futex resumed>) = ? [pid 5301] <... exit_group resumed>) = ? [pid 5310] set_robust_list(0x7f6db63839a0, 24 [pid 5309] <... setpgid resumed>) = 0 [pid 5303] +++ exited with 0 +++ [pid 5310] <... set_robust_list resumed>) = 0 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5305] <... memfd_create resumed>) = 4 [pid 5304] <... futex resumed>) = 0 [pid 5301] +++ exited with 0 +++ [pid 5310] rt_sigprocmask(SIG_SETMASK, [], [pid 5309] <... openat resumed>) = 3 [pid 5306] <... clone3 resumed> => {parent_tid=[5310]}, 88) = 5310 [pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5309] write(3, "1000", 4 [pid 5306] rt_sigprocmask(SIG_SETMASK, [], [pid 5305] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] close(3 [pid 5310] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5309] <... write resumed>) = 4 [pid 5306] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] <... close resumed>) = 0 [pid 5309] close(3 [pid 5306] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5311 attached [pid 5310] <... futex resumed>) = 0 [pid 5309] <... close resumed>) = 0 [pid 5306] <... futex resumed>) = 1 [pid 5311] set_robust_list(0x555556b376a0, 24 [pid 5310] memfd_create("syzkaller", 0 [pid 5309] symlink("/dev/binderfs", "./binderfs" [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5311] <... set_robust_list resumed>) = 0 [pid 5310] <... memfd_create resumed>) = 3 [pid 5309] <... symlink resumed>) = 0 [pid 5308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5310] <... mmap resumed>) = 0x7f6dade00000 [pid 5311] chdir("./21" [pid 5310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5305] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", [pid 5311] <... chdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] getdents64(3, [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5311 [pid 5311] setpgid(0, 0) = 0 [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5309] <... futex resumed>) = 0 [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5056] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5309] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5309] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5311] <... openat resumed>) = 3 [pid 5309] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5311] write(3, "1000", 4 [pid 5309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5309] <... mmap resumed>) = 0x7f6db6363000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5311] <... write resumed>) = 4 [pid 5309] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5056] unlink("./19/binderfs" [pid 5311] close(3 [pid 5309] <... mprotect resumed>) = 0 [pid 5311] <... close resumed>) = 0 [pid 5309] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... unlink resumed>) = 0 [pid 5311] symlink("/dev/binderfs", "./binderfs" [pid 5310] <... write resumed>) = 524288 [pid 5309] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5308] <... write resumed>) = 524288 [pid 5305] <... write resumed>) = 524288 [pid 5056] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5311] <... symlink resumed>) = 0 [pid 5309] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5312]}, 88) = 5312 [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5309] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] <... futex resumed>) = 0 [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5312 attached [pid 5311] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5312] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5311] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5312] <... rseq resumed>) = 0 [pid 5311] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5308] munmap(0x7f6dade00000, 138412032 [pid 5305] munmap(0x7f6dade00000, 138412032 [pid 5056] <... umount2 resumed>) = 0 [pid 5312] set_robust_list(0x7f6db63839a0, 24 [pid 5311] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5312] <... set_robust_list resumed>) = 0 [pid 5310] munmap(0x7f6dade00000, 138412032 [pid 5312] rt_sigprocmask(SIG_SETMASK, [], [pid 5311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5308] <... munmap resumed>) = 0 [pid 5305] <... munmap resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5311] <... mmap resumed>) = 0x7f6db6363000 [pid 5308] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] newfstatat(AT_FDCWD, "./19/file2", [pid 5312] memfd_create("syzkaller", 0 [pid 5311] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5310] <... munmap resumed>) = 0 [pid 5308] <... openat resumed>) = 4 [pid 5305] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5312] <... memfd_create resumed>) = 3 [pid 5311] <... mprotect resumed>) = 0 [pid 5310] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5305] close(4 [pid 5056] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5310] <... openat resumed>) = 4 [pid 5312] <... mmap resumed>) = 0x7f6dade00000 [pid 5310] ioctl(4, LOOP_SET_FD, 3 [pid 5312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5311] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5305] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5308] ioctl(4, LOOP_SET_FD, 3 [pid 5311] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5305] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5311] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5305] <... futex resumed>) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5304] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5313 attached [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(4, [pid 5313] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5313] <... rseq resumed>) = 0 [pid 5056] getdents64(4, [pid 5313] set_robust_list(0x7f6db63839a0, 24 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5313] <... set_robust_list resumed>) = 0 [pid 5311] <... clone3 resumed> => {parent_tid=[5313]}, 88) = 5313 [pid 5056] close(4 [pid 5312] <... write resumed>) = 524288 [pid 5312] munmap(0x7f6dade00000, 138412032 [pid 5313] rt_sigprocmask(SIG_SETMASK, [], [pid 5311] rt_sigprocmask(SIG_SETMASK, [], [pid 5310] <... ioctl resumed>) = 0 [pid 5308] <... ioctl resumed>) = 0 [pid 5305] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] <... close resumed>) = 0 [pid 5313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5311] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5310] close(3 [pid 5313] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... close resumed>) = 0 [pid 5313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5312] <... munmap resumed>) = 0 [pid 5311] <... futex resumed>) = 0 [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5308] close(3) = 0 [pid 5308] close(4 [pid 5313] memfd_create("syzkaller", 0 [pid 5308] <... close resumed>) = 0 [pid 5308] mkdir("./file2", 0777 [pid 5305] <... openat resumed>) = 4 [pid 5312] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5308] <... mkdir resumed>) = 0 [pid 5056] rmdir("./19/file2" [pid 5305] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... memfd_create resumed>) = 3 [pid 5312] <... openat resumed>) = 4 [pid 5310] close(4 [pid 5308] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5056] <... rmdir resumed>) = 0 [pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5310] <... close resumed>) = 0 [pid 5313] <... mmap resumed>) = 0x7f6dade00000 [ 90.631791][ T5310] loop3: detected capacity change from 0 to 1024 [ 90.640717][ T5308] loop0: detected capacity change from 0 to 1024 [pid 5310] mkdir("./file2", 0777 [pid 5312] ioctl(4, LOOP_SET_FD, 3 [pid 5310] <... mkdir resumed>) = 0 [pid 5305] <... futex resumed>) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5056] getdents64(3, [pid 5305] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5304] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... futex resumed>) = 0 [pid 5304] <... futex resumed>) = 1 [pid 5305] openat(AT_FDCWD, ".", O_RDONLY [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5305] <... openat resumed>) = 5 [pid 5305] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5304] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5310] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5305] renameat2(5, "./file2", 4, "./file1", 0) = -1 ENOENT (No such file or directory) [pid 5305] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5304] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5304] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5305] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT) = -1 EFAULT (Bad address) [pid 5305] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5304] exit_group(0) = ? [pid 5312] <... ioctl resumed>) = 0 [pid 5310] <... mount resumed>) = 0 [pid 5056] close(3 [pid 5310] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5312] close(3 [pid 5310] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5312] <... close resumed>) = 0 [pid 5056] rmdir("./19" [pid 5312] close(4) = 0 [pid 5310] chdir("./file2" [pid 5308] <... mount resumed>) = 0 [pid 5312] mkdir("./file2", 0777 [pid 5310] <... chdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5313] <... write resumed>) = 524288 [pid 5312] <... mkdir resumed>) = 0 [pid 5310] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5308] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5305] +++ exited with 0 +++ [pid 5304] +++ exited with 0 +++ [pid 5056] mkdir("./20", 0777 [pid 5313] munmap(0x7f6dade00000, 138412032 [pid 5312] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5310] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5308] <... openat resumed>) = 3 [pid 5056] <... mkdir resumed>) = 0 [pid 5310] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] chdir("./file2" [pid 5310] <... futex resumed>) = 1 [pid 5308] <... chdir resumed>) = 0 [pid 5053] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5306] <... futex resumed>) = 0 [pid 5306] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5306] <... futex resumed>) = 0 [pid 5310] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5308] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... openat resumed>) = 3 [pid 5313] <... munmap resumed>) = 0 [pid 5308] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5053] newfstatat(3, "", [pid 5313] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5308] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5308] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] <... futex resumed>) = 0 [pid 5313] <... openat resumed>) = 4 [pid 5312] <... mount resumed>) = 0 [pid 5310] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5056] <... openat resumed>) = 3 [ 90.680344][ T5312] loop1: detected capacity change from 0 to 1024 [pid 5053] getdents64(3, [pid 5313] ioctl(4, LOOP_SET_FD, 3 [pid 5312] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5307] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5310] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5310] <... futex resumed>) = 1 [pid 5312] <... openat resumed>) = 3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5307] <... futex resumed>) = 1 [pid 5053] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5310] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] <... futex resumed>) = 0 [pid 5306] <... futex resumed>) = 0 [pid 5308] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5306] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... futex resumed>) = 0 [pid 5306] <... futex resumed>) = 1 [pid 5310] memfd_create("syzkaller", 0) = 4 [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5310] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5313] <... ioctl resumed>) = 0 [pid 5312] chdir("./file2" [pid 5310] <... write resumed>) = 524288 [pid 5308] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5312] <... chdir resumed>) = 0 [pid 5053] unlink("./20/binderfs" [pid 5312] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5313] close(3 [pid 5312] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5308] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... close resumed>) = 0 [pid 5312] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5313] close(4 [pid 5312] <... futex resumed>) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5308] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5313] <... close resumed>) = 0 [pid 5312] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5309] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5307] <... futex resumed>) = 0 [pid 5313] mkdir("./file2", 0777 [pid 5312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5310] munmap(0x7f6dade00000, 138412032 [pid 5309] <... futex resumed>) = 0 [pid 5308] memfd_create("syzkaller", 0 [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = 0 [pid 5312] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] <... mkdir resumed>) = 0 [pid 5308] <... memfd_create resumed>) = 4 [pid 5313] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5310] <... munmap resumed>) = 0 [pid 5308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5312] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5310] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5308] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5312] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5308] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] newfstatat(AT_FDCWD, "./20/file2", [pid 5312] <... futex resumed>) = 1 [pid 5310] close(4 [pid 5309] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5309] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5312] memfd_create("syzkaller", 0 [pid 5309] <... futex resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5312] <... memfd_create resumed>) = 4 [pid 5053] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5308] <... write resumed>) = 524288 [pid 5056] <... ioctl resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5310] <... close resumed>) = 0 [pid 5308] munmap(0x7f6dade00000, 138412032 [pid 5056] close(3 [pid 5053] newfstatat(4, "", [pid 5312] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5313] <... mount resumed>) = 0 [pid 5312] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5310] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... munmap resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5313] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4) = 0 [pid 5053] rmdir("./20/file2") = 0 [pid 5053] getdents64(3, [pid 5310] <... futex resumed>) = 1 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5310] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5053] close(3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... close resumed>) = 0 [pid 5306] <... futex resumed>) = 0 [pid 5053] rmdir("./20" [pid 5313] <... openat resumed>) = 3 [ 90.736630][ T5313] loop4: detected capacity change from 0 to 1024 [pid 5306] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5308] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] <... rmdir resumed>) = 0 [pid 5308] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5308] close(4 [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] chdir("./file2" [pid 5310] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5314 attached [pid 5313] <... chdir resumed>) = 0 [pid 5310] openat(AT_FDCWD, ".", O_RDONLY [pid 5053] mkdir("./21", 0777 [pid 5310] <... openat resumed>) = 4 [pid 5313] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5314] set_robust_list(0x555556b376a0, 24) = 0 [pid 5313] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5310] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] chdir("./20" [pid 5313] <... futex resumed>) = 1 [pid 5314] <... chdir resumed>) = 0 [pid 5310] <... futex resumed>) = 1 [pid 5306] <... futex resumed>) = 0 [pid 5313] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5310] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5306] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] <... prctl resumed>) = 0 [pid 5310] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5314] setpgid(0, 0 [pid 5310] openat(AT_FDCWD, ".", O_RDONLY [pid 5314] <... setpgid resumed>) = 0 [pid 5310] <... openat resumed>) = 5 [pid 5308] <... close resumed>) = 0 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5312] <... write resumed>) = 524288 [pid 5311] <... futex resumed>) = 0 [pid 5310] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5314 [pid 5053] <... mkdir resumed>) = 0 [pid 5310] <... futex resumed>) = 1 [pid 5306] <... futex resumed>) = 0 [pid 5314] <... openat resumed>) = 3 [pid 5310] renameat2(5, "./file2", 4, "./file1", 0 [pid 5306] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5311] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5310] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5310] <... futex resumed>) = 0 [pid 5306] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] write(3, "1000", 4 [pid 5310] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5306] <... futex resumed>) = 0 [pid 5313] <... futex resumed>) = 0 [pid 5311] <... futex resumed>) = 1 [pid 5310] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5308] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... openat resumed>) = 3 [pid 5313] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5310] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5307] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] openat(AT_FDCWD, ".", O_RDONLY [pid 5307] <... futex resumed>) = 0 [pid 5314] <... write resumed>) = 4 [pid 5310] <... futex resumed>) = 1 [pid 5308] <... openat resumed>) = 4 [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5306] <... futex resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5314] close(3 [pid 5310] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5313] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5308] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] <... close resumed>) = 0 [pid 5313] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5306] exit_group(0 [pid 5314] symlink("/dev/binderfs", "./binderfs" [pid 5313] <... futex resumed>) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5310] <... futex resumed>) = ? [pid 5308] openat(AT_FDCWD, ".", O_RDONLY [pid 5307] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] <... exit_group resumed>) = ? [pid 5311] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... openat resumed>) = 5 [pid 5307] <... futex resumed>) = 0 [pid 5312] munmap(0x7f6dade00000, 138412032 [pid 5311] <... futex resumed>) = 0 [pid 5308] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5312] <... munmap resumed>) = 0 [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5308] <... futex resumed>) = 0 [pid 5307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5307] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] renameat2(5, "./file2", 4, "./file1", 0 [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] memfd_create("syzkaller", 0 [pid 5310] +++ exited with 0 +++ [pid 5308] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5306] +++ exited with 0 +++ [pid 5314] <... symlink resumed>) = 0 [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... memfd_create resumed>) = 4 [pid 5312] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5308] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5306, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5314] <... futex resumed>) = 0 [pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5312] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5313] <... mmap resumed>) = 0x7f6dade00000 [pid 5308] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5307] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... restart_syscall resumed>) = 0 [pid 5312] close(4 [pid 5308] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5307] <... futex resumed>) = 0 [pid 5307] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5054] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5308] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5308] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] exit_group(0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5307] <... exit_group resumed>) = ? [pid 5054] unlink("./19/binderfs" [pid 5308] <... futex resumed>) = ? [pid 5054] <... unlink resumed>) = 0 [pid 5312] <... close resumed>) = 0 [pid 5054] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5312] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5313] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5308] +++ exited with 0 +++ [pid 5307] +++ exited with 0 +++ [pid 5054] <... umount2 resumed>) = 0 [pid 5314] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5313] <... write resumed>) = 524288 [pid 5312] <... futex resumed>) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5054] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] <... mmap resumed>) = 0x7f6db6363000 [pid 5054] newfstatat(AT_FDCWD, "./19/file2", [pid 5314] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5309] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5309] <... futex resumed>) = 0 [pid 5314] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5051] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5314] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] umount2("./19/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5315 attached [pid 5054] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(3, "", [pid 5315] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5314] <... clone3 resumed> => {parent_tid=[5315]}, 88) = 5315 [pid 5054] <... openat resumed>) = 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5315] <... rseq resumed>) = 0 [pid 5314] rt_sigprocmask(SIG_SETMASK, [], [pid 5312] openat(AT_FDCWD, ".", O_RDONLY [pid 5054] newfstatat(4, "", [pid 5051] getdents64(3, [pid 5315] set_robust_list(0x7f6db63839a0, 24 [pid 5314] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5312] <... openat resumed>) = 4 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5315] <... set_robust_list resumed>) = 0 [pid 5314] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(4, [pid 5051] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5315] rt_sigprocmask(SIG_SETMASK, [], [pid 5314] <... futex resumed>) = 0 [pid 5312] <... futex resumed>) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5313] munmap(0x7f6dade00000, 138412032 [pid 5312] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5309] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] getdents64(4, [pid 5051] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5315] memfd_create("syzkaller", 0 [pid 5313] <... munmap resumed>) = 0 [pid 5312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5309] <... futex resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5315] <... memfd_create resumed>) = 3 [pid 5312] openat(AT_FDCWD, ".", O_RDONLY [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] close(4 [pid 5051] unlink("./20/binderfs" [pid 5315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5312] <... openat resumed>) = 5 [pid 5054] <... close resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5315] <... mmap resumed>) = 0x7f6dade00000 [pid 5312] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] rmdir("./19/file2" [pid 5051] <... unlink resumed>) = 0 [pid 5312] <... futex resumed>) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] renameat2(5, "./file2", 4, "./file1", 0 [pid 5309] <... futex resumed>) = 0 [pid 5312] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5312] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5313] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5312] <... futex resumed>) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5313] close(4 [pid 5312] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5309] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... rmdir resumed>) = 0 [pid 5313] <... close resumed>) = 0 [pid 5312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] getdents64(3, [pid 5312] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5312] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5054] close(3 [pid 5312] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5312] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5309] exit_group(0 [pid 5312] <... futex resumed>) = ? [pid 5309] <... exit_group resumed>) = ? [pid 5312] +++ exited with 0 +++ [pid 5309] +++ exited with 0 +++ [pid 5054] rmdir("./19" [pid 5053] close(3 [pid 5051] <... umount2 resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5313] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... restart_syscall resumed>) = 0 [pid 5313] <... futex resumed>) = 1 [pid 5313] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] <... futex resumed>) = 0 [pid 5054] mkdir("./20", 0777 [pid 5311] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5315] <... write resumed>) = 524288 [pid 5054] <... mkdir resumed>) = 0 [pid 5051] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5316 attached [pid 5313] <... futex resumed>) = 0 [pid 5311] <... futex resumed>) = 1 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5316 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5313] openat(AT_FDCWD, ".", O_RDONLY [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(AT_FDCWD, "./20/file2", [pid 5313] <... openat resumed>) = 4 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5315] munmap(0x7f6dade00000, 138412032 [pid 5313] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5313] <... futex resumed>) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5051] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5313] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(3, "", [pid 5315] <... munmap resumed>) = 0 [pid 5313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5311] <... futex resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5316] set_robust_list(0x555556b376a0, 24 [pid 5313] openat(AT_FDCWD, ".", O_RDONLY [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] getdents64(3, [pid 5315] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5316] <... set_robust_list resumed>) = 0 [pid 5315] <... openat resumed>) = 4 [pid 5313] <... openat resumed>) = 5 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5316] chdir("./21" [pid 5315] ioctl(4, LOOP_SET_FD, 3 [pid 5313] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 4 [pid 5316] <... chdir resumed>) = 0 [pid 5313] <... futex resumed>) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5313] renameat2(5, "./file2", 4, "./file1", 0 [pid 5311] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5316] <... prctl resumed>) = 0 [pid 5313] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5311] <... futex resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5316] setpgid(0, 0 [pid 5313] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] unlink("./20/binderfs" [pid 5051] newfstatat(4, "", [pid 5316] <... setpgid resumed>) = 0 [pid 5313] <... futex resumed>) = 0 [pid 5311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5313] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5316] <... openat resumed>) = 3 [pid 5313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5311] <... futex resumed>) = 0 [pid 5051] getdents64(4, [pid 5316] write(3, "1000", 4 [pid 5313] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5311] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5316] <... write resumed>) = 4 [pid 5313] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5316] close(3 [pid 5051] getdents64(4, [pid 5316] <... close resumed>) = 0 [pid 5315] <... ioctl resumed>) = 0 [pid 5313] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5316] symlink("/dev/binderfs", "./binderfs" [pid 5315] close(3 [pid 5313] <... futex resumed>) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5051] close(4 [pid 5316] <... symlink resumed>) = 0 [pid 5315] <... close resumed>) = 0 [pid 5313] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] exit_group(0 [pid 5315] close(4 [pid 5311] <... exit_group resumed>) = ? [pid 5051] <... close resumed>) = 0 [pid 5315] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] rmdir("./20/file2" [pid 5315] mkdir("./file2", 0777 [pid 5052] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... futex resumed>) = ? [pid 5051] <... rmdir resumed>) = 0 [pid 5316] <... futex resumed>) = 0 [pid 5315] <... mkdir resumed>) = 0 [pid 5313] +++ exited with 0 +++ [pid 5311] +++ exited with 0 +++ [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5316] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5315] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5052] newfstatat(AT_FDCWD, "./20/file2", [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] close(3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5316] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... close resumed>) = 0 [pid 5316] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./20" [pid 5316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] newfstatat(3, "", [pid 5051] <... rmdir resumed>) = 0 [pid 5316] <... mmap resumed>) = 0x7f6db6363000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5051] mkdir("./21", 0777 [pid 5316] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5055] getdents64(3, [pid 5052] newfstatat(4, "", [pid 5316] <... mprotect resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] <... mkdir resumed>) = 0 [pid 5316] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5316] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] <... ioctl resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5055] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5052] getdents64(4, [pid 5051] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./21/binderfs" [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5055] <... unlink resumed>) = 0 [pid 5052] getdents64(4, ./strace-static-x86_64: Process 5317 attached [pid 5316] <... clone3 resumed> => {parent_tid=[5317]}, 88) = 5317 [pid 5055] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5316] rt_sigprocmask(SIG_SETMASK, [], [pid 5317] <... rseq resumed>) = 0 [pid 5316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5315] <... mount resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5317] set_robust_list(0x7f6db63839a0, 24 [pid 5316] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... set_robust_list resumed>) = 0 [pid 5316] <... futex resumed>) = 0 [pid 5052] close(4 [pid 5317] rt_sigprocmask(SIG_SETMASK, [], [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] close(3 [pid 5317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... close resumed>) = 0 [pid 5317] memfd_create("syzkaller", 0 [pid 5054] <... close resumed>) = 0 [pid 5317] <... memfd_create resumed>) = 3 [pid 5052] rmdir("./20/file2" [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5052] <... rmdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5315] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5318 ./strace-static-x86_64: Process 5318 attached [pid 5318] set_robust_list(0x555556b376a0, 24 [pid 5315] <... openat resumed>) = 3 [ 90.904576][ T5315] loop5: detected capacity change from 0 to 1024 [pid 5052] close(3 [pid 5318] <... set_robust_list resumed>) = 0 [pid 5317] <... write resumed>) = 524288 [pid 5315] chdir("./file2" [pid 5055] <... umount2 resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5318] chdir("./20" [pid 5315] <... chdir resumed>) = 0 [pid 5052] rmdir("./20" [pid 5318] <... chdir resumed>) = 0 [pid 5315] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5055] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5315] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5318] <... prctl resumed>) = 0 [pid 5315] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./21/file2", [pid 5052] mkdir("./21", 0777 [pid 5318] setpgid(0, 0 [pid 5315] <... futex resumed>) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5318] <... setpgid resumed>) = 0 [pid 5317] munmap(0x7f6dade00000, 138412032 [pid 5315] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5314] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... mkdir resumed>) = 0 [pid 5318] <... openat resumed>) = 3 [pid 5317] <... munmap resumed>) = 0 [pid 5314] <... futex resumed>) = 0 [pid 5317] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5318] write(3, "1000", 4 [pid 5317] ioctl(4, LOOP_SET_FD, 3 [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] <... ioctl resumed>) = 0 [pid 5318] <... write resumed>) = 4 [pid 5315] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5318] close(3 [pid 5315] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5051] close(3 [pid 5315] <... futex resumed>) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5315] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5314] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] <... close resumed>) = 0 [pid 5315] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5314] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... close resumed>) = 0 [pid 5318] symlink("/dev/binderfs", "./binderfs" [pid 5315] memfd_create("syzkaller", 0 [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5319 attached [pid 5318] <... symlink resumed>) = 0 [pid 5315] <... memfd_create resumed>) = 4 [pid 5055] newfstatat(4, "", [pid 5315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5319 [pid 5317] <... ioctl resumed>) = 0 [pid 5319] set_robust_list(0x555556b376a0, 24 [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5319] <... set_robust_list resumed>) = 0 [pid 5318] <... futex resumed>) = 0 [pid 5317] close(3 [pid 5319] chdir("./21" [pid 5318] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5317] <... close resumed>) = 0 [pid 5315] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5317] close(4 [pid 5319] <... chdir resumed>) = 0 [pid 5317] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5318] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] rmdir("./21/file2" [pid 5052] <... ioctl resumed>) = 0 [pid 5318] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5317] mkdir("./file2", 0777 [pid 5319] <... prctl resumed>) = 0 [pid 5318] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5319] setpgid(0, 0 [pid 5318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5317] <... mkdir resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5052] close(3 [pid 5319] <... setpgid resumed>) = 0 [pid 5318] <... mmap resumed>) = 0x7f6db6363000 [pid 5055] getdents64(3, [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5318] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5317] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5052] <... close resumed>) = 0 [pid 5319] <... openat resumed>) = 3 [pid 5318] <... mprotect resumed>) = 0 [pid 5318] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5319] write(3, "1000", 4 [pid 5318] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5319] <... write resumed>) = 4 [pid 5318] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5319] close(3) = 0 [pid 5318] <... clone3 resumed> => {parent_tid=[5320]}, 88) = 5320 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [ 90.982003][ T5317] loop2: detected capacity change from 0 to 1024 [pid 5319] symlink("/dev/binderfs", "./binderfs" [pid 5318] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] close(3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5319] <... symlink resumed>) = 0 [pid 5318] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] <... close resumed>) = 0 [pid 5318] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5319] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, ./strace-static-x86_64: Process 5321 attached ./strace-static-x86_64: Process 5320 attached NULL, 8) = 0 [pid 5315] <... write resumed>) = 524288 [pid 5321] set_robust_list(0x555556b376a0, 24 [pid 5320] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5319] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5315] munmap(0x7f6dade00000, 138412032 [pid 5055] rmdir("./21" [pid 5320] <... rseq resumed>) = 0 [pid 5319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5320] set_robust_list(0x7f6db63839a0, 24 [pid 5319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5321] <... set_robust_list resumed>) = 0 [pid 5320] <... set_robust_list resumed>) = 0 [pid 5319] <... mmap resumed>) = 0x7f6db6363000 [pid 5055] <... rmdir resumed>) = 0 [pid 5320] rt_sigprocmask(SIG_SETMASK, [], [pid 5319] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5315] <... munmap resumed>) = 0 [pid 5321] chdir("./21" [pid 5320] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5319] <... mprotect resumed>) = 0 [pid 5055] mkdir("./22", 0777 [pid 5321] <... chdir resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5321 [pid 5320] memfd_create("syzkaller", 0 [pid 5315] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5317] <... mount resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5321] setpgid(0, 0 [pid 5317] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5321] <... setpgid resumed>) = 0 [pid 5320] <... memfd_create resumed>) = 3 [pid 5319] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5317] <... openat resumed>) = 3 [pid 5315] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5317] chdir("./file2" [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] <... chdir resumed>) = 0 [pid 5317] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5319] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5317] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5320] <... mmap resumed>) = 0x7f6dade00000 [pid 5319] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5317] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5322 attached [pid 5321] <... openat resumed>) = 3 [pid 5320] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5317] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5315] close(4 [pid 5055] <... openat resumed>) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5322] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5317] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... rseq resumed>) = 0 [pid 5317] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5316] <... futex resumed>) = 0 [pid 5322] set_robust_list(0x7f6db63839a0, 24 [pid 5317] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] <... set_robust_list resumed>) = 0 [pid 5321] write(3, "1000", 4 [pid 5317] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5321] <... write resumed>) = 4 [pid 5321] close(3 [pid 5322] rt_sigprocmask(SIG_SETMASK, [], [pid 5321] <... close resumed>) = 0 [pid 5319] <... clone3 resumed> => {parent_tid=[5322]}, 88) = 5322 [pid 5317] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5319] rt_sigprocmask(SIG_SETMASK, [], [pid 5317] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5322] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5317] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] symlink("/dev/binderfs", "./binderfs" [pid 5319] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5316] <... futex resumed>) = 0 [pid 5315] <... close resumed>) = 0 [pid 5322] <... futex resumed>) = 0 [pid 5319] <... futex resumed>) = 1 [pid 5317] memfd_create("syzkaller", 0 [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5322] memfd_create("syzkaller", 0) = 3 [pid 5321] <... symlink resumed>) = 0 [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5317] <... memfd_create resumed>) = 4 [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5322] <... mmap resumed>) = 0x7f6dade00000 [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... write resumed>) = 524288 [pid 5317] <... mmap resumed>) = 0x7f6dade00000 [pid 5315] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... futex resumed>) = 0 [pid 5321] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5321] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5315] <... futex resumed>) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5315] openat(AT_FDCWD, ".", O_RDONLY [pid 5314] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... mmap resumed>) = 0x7f6db6363000 [pid 5315] <... openat resumed>) = 4 [pid 5314] <... futex resumed>) = 0 [pid 5321] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5321] <... mprotect resumed>) = 0 [pid 5321] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5323]}, 88) = 5323 ./strace-static-x86_64: Process 5323 attached [pid 5321] rt_sigprocmask(SIG_SETMASK, [], [pid 5315] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5317] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] <... ioctl resumed>) = 0 [pid 5323] <... rseq resumed>) = 0 [pid 5320] munmap(0x7f6dade00000, 138412032 [pid 5315] <... futex resumed>) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5323] set_robust_list(0x7f6db63839a0, 24 [pid 5321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5320] <... munmap resumed>) = 0 [pid 5315] openat(AT_FDCWD, ".", O_RDONLY [pid 5314] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] <... set_robust_list resumed>) = 0 [pid 5315] <... openat resumed>) = 5 [pid 5323] rt_sigprocmask(SIG_SETMASK, [], [pid 5321] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5321] <... futex resumed>) = 0 [pid 5315] <... futex resumed>) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5323] memfd_create("syzkaller", 0 [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5315] renameat2(5, "./file2", 4, "./file1", 0 [pid 5314] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... write resumed>) = 524288 [pid 5315] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5314] <... futex resumed>) = 0 [pid 5315] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] <... memfd_create resumed>) = 3 [pid 5315] <... futex resumed>) = 0 [pid 5314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5320] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5315] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5314] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... mmap resumed>) = 0x7f6dade00000 [pid 5320] <... openat resumed>) = 4 [pid 5315] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5314] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5320] ioctl(4, LOOP_SET_FD, 3 [pid 5315] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5314] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... close resumed>) = 0 [pid 5315] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5315] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5315] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5314] exit_group(0 [pid 5315] <... futex resumed>) = ? [pid 5314] <... exit_group resumed>) = ? [pid 5323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5315] +++ exited with 0 +++ [pid 5314] +++ exited with 0 +++ [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5322] munmap(0x7f6dade00000, 138412032 [pid 5317] <... write resumed>) = 524288 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5324 attached [pid 5323] <... write resumed>) = 524288 [pid 5322] <... munmap resumed>) = 0 [pid 5317] munmap(0x7f6dade00000, 138412032 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5324 [pid 5324] set_robust_list(0x555556b376a0, 24 [pid 5322] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5056] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5322] <... openat resumed>) = 4 [pid 5324] <... set_robust_list resumed>) = 0 [pid 5322] ioctl(4, LOOP_SET_FD, 3 [pid 5317] <... munmap resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5324] chdir("./22") = 0 [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5324] setpgid(0, 0) = 0 [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5324] write(3, "1000", 4) = 4 [pid 5324] close(3) = 0 [pid 5324] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5324] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5323] munmap(0x7f6dade00000, 138412032 [pid 5324] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5323] <... munmap resumed>) = 0 [pid 5317] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] newfstatat(3, "", [pid 5324] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5320] <... ioctl resumed>) = 0 [pid 5317] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5324] <... mmap resumed>) = 0x7f6db6363000 [pid 5323] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5320] close(3 [pid 5317] close(4 [pid 5056] getdents64(3, [pid 5324] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5323] <... openat resumed>) = 4 [pid 5320] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5324] <... mprotect resumed>) = 0 [pid 5320] close(4 [pid 5324] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5323] ioctl(4, LOOP_SET_FD, 3 [pid 5324] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5320] <... close resumed>) = 0 [pid 5324] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5317] <... close resumed>) = 0 [pid 5056] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5322] <... ioctl resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5324] <... clone3 resumed> => {parent_tid=[5325]}, 88) = 5325 [pid 5056] unlink("./20/binderfs" [pid 5324] rt_sigprocmask(SIG_SETMASK, [], [pid 5320] mkdir("./file2", 0777 [pid 5324] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5322] close(3 [pid 5320] <... mkdir resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5324] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... close resumed>) = 0 [pid 5056] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] <... futex resumed>) = 0 [pid 5322] close(4 [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5325 attached [pid 5320] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5325] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5322] <... close resumed>) = 0 [pid 5325] <... rseq resumed>) = 0 [pid 5322] mkdir("./file2", 0777 [pid 5325] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5325] memfd_create("syzkaller", 0) = 3 [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5322] <... mkdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5323] <... ioctl resumed>) = 0 [pid 5323] close(3) = 0 [pid 5323] close(4 [pid 5325] <... write resumed>) = 524288 [pid 5323] <... close resumed>) = 0 [pid 5056] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5323] mkdir("./file2", 0777 [pid 5322] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5056] newfstatat(AT_FDCWD, "./20/file2", [pid 5317] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5323] <... mkdir resumed>) = 0 [pid 5317] openat(AT_FDCWD, ".", O_RDONLY [pid 5316] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5320] <... mount resumed>) = 0 [pid 5317] <... openat resumed>) = 4 [pid 5316] <... futex resumed>) = 0 [pid 5056] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5320] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5317] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5320] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5323] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5317] openat(AT_FDCWD, ".", O_RDONLY [pid 5316] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 4 [pid 5320] chdir("./file2" [pid 5056] newfstatat(4, "", [pid 5320] <... chdir resumed>) = 0 [pid 5317] <... openat resumed>) = 5 [pid 5316] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5320] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5317] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(4, [pid 5316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5322] <... mount resumed>) = 0 [pid 5320] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5317] <... futex resumed>) = 0 [pid 5316] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(4, [pid 5317] renameat2(5, "./file2", 4, "./file1", 0 [pid 5316] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5325] munmap(0x7f6dade00000, 138412032 [pid 5323] <... mount resumed>) = 0 [pid 5322] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5317] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(4 [pid 5325] <... munmap resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5323] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5322] <... openat resumed>) = 3 [pid 5056] rmdir("./20/file2" [pid 5325] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5323] <... openat resumed>) = 3 [ 91.109881][ T5320] loop3: detected capacity change from 0 to 1024 [ 91.131127][ T5322] loop0: detected capacity change from 0 to 1024 [ 91.143121][ T5323] loop1: detected capacity change from 0 to 1024 [pid 5325] <... openat resumed>) = 4 [pid 5323] chdir("./file2" [pid 5322] chdir("./file2" [pid 5320] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5325] ioctl(4, LOOP_SET_FD, 3 [pid 5323] <... chdir resumed>) = 0 [pid 5322] <... chdir resumed>) = 0 [pid 5320] <... futex resumed>) = 1 [pid 5318] <... futex resumed>) = 0 [pid 5317] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5056] getdents64(3, [pid 5322] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5320] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5318] <... futex resumed>) = 0 [pid 5316] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5317] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5322] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5320] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(3 [pid 5317] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5322] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5317] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5322] <... futex resumed>) = 1 [pid 5319] <... futex resumed>) = 0 [pid 5317] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5319] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... futex resumed>) = 0 [pid 5322] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5319] <... futex resumed>) = 0 [pid 5317] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] rmdir("./20" [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5056] <... rmdir resumed>) = 0 [pid 5316] exit_group(0 [pid 5323] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5320] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5317] <... futex resumed>) = ? [pid 5316] <... exit_group resumed>) = ? [pid 5056] mkdir("./21", 0777 [pid 5323] <... futex resumed>) = 1 [pid 5056] <... mkdir resumed>) = 0 [pid 5323] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5325] <... ioctl resumed>) = 0 [pid 5325] close(3) = 0 [pid 5325] close(4) = 0 [pid 5317] +++ exited with 0 +++ [pid 5325] mkdir("./file2", 0777) = 0 [pid 5321] <... futex resumed>) = 0 [pid 5321] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5323] <... futex resumed>) = 0 [pid 5322] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... futex resumed>) = 1 [pid 5320] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] +++ exited with 0 +++ [pid 5323] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5322] <... futex resumed>) = 1 [pid 5320] <... futex resumed>) = 1 [pid 5319] <... futex resumed>) = 0 [pid 5318] <... futex resumed>) = 0 [pid 5322] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5319] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5323] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5319] <... futex resumed>) = 0 [pid 5318] <... futex resumed>) = 0 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5323] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] memfd_create("syzkaller", 0 [pid 5320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... restart_syscall resumed>) = 0 [pid 5323] <... futex resumed>) = 1 [pid 5322] <... memfd_create resumed>) = 4 [pid 5321] <... futex resumed>) = 0 [pid 5320] memfd_create("syzkaller", 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5323] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5321] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5323] memfd_create("syzkaller", 0 [pid 5322] <... mmap resumed>) = 0x7f6dade00000 [pid 5323] <... memfd_create resumed>) = 4 [pid 5056] <... openat resumed>) = 3 [pid 5053] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5320] <... memfd_create resumed>) = 4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5325] <... mount resumed>) = 0 [pid 5323] <... mmap resumed>) = 0x7f6dade00000 [pid 5322] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5053] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5325] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5325] chdir("./file2") = 0 [pid 5325] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5325] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5325] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5324] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... openat resumed>) = 3 [pid 5325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5324] <... futex resumed>) = 0 [pid 5325] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5325] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5325] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] getdents64(3, [pid 5325] <... futex resumed>) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5325] memfd_create("syzkaller", 0 [pid 5324] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5324] <... futex resumed>) = 0 [pid 5325] <... memfd_create resumed>) = 4 [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5323] <... write resumed>) = 524288 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 91.192562][ T5325] loop4: detected capacity change from 0 to 1024 [pid 5320] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] unlink("./21/binderfs") = 0 [pid 5053] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5322] <... write resumed>) = 524288 [pid 5325] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] <... umount2 resumed>) = 0 [pid 5322] munmap(0x7f6dade00000, 138412032 [pid 5325] <... write resumed>) = 524288 [pid 5056] <... ioctl resumed>) = 0 [pid 5053] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5322] <... munmap resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./21/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5323] munmap(0x7f6dade00000, 138412032 [pid 5322] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] <... openat resumed>) = 4 [pid 5323] <... munmap resumed>) = 0 [pid 5323] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5322] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] close(3 [pid 5322] close(4 [pid 5053] newfstatat(4, "", [pid 5322] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5323] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5323] close(4 [pid 5322] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... write resumed>) = 524288 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5325] munmap(0x7f6dade00000, 138412032 [pid 5053] getdents64(4, [pid 5325] <... munmap resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4) = 0 [pid 5053] rmdir("./21/file2") = 0 [pid 5325] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5053] getdents64(3, [pid 5325] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] close(3) = 0 [pid 5325] close(4 [pid 5053] rmdir("./21"./strace-static-x86_64: Process 5326 attached [pid 5325] <... close resumed>) = 0 [pid 5323] <... close resumed>) = 0 [pid 5322] <... futex resumed>) = 1 [pid 5320] munmap(0x7f6dade00000, 138412032 [pid 5053] <... rmdir resumed>) = 0 [pid 5326] set_robust_list(0x555556b376a0, 24 [pid 5322] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5320] <... munmap resumed>) = 0 [pid 5319] <... futex resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5326 [pid 5053] mkdir("./22", 0777 [pid 5326] <... set_robust_list resumed>) = 0 [pid 5323] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5320] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5319] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... mkdir resumed>) = 0 [pid 5326] chdir("./21" [pid 5319] <... futex resumed>) = 0 [pid 5320] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5322] openat(AT_FDCWD, ".", O_RDONLY [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] <... futex resumed>) = 1 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5326] <... chdir resumed>) = 0 [pid 5323] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5322] <... openat resumed>) = 4 [pid 5320] close(4 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... openat resumed>) = 3 [pid 5325] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... futex resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5325] <... futex resumed>) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5321] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] openat(AT_FDCWD, ".", O_RDONLY [pid 5324] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = 0 [pid 5321] <... futex resumed>) = 1 [pid 5325] <... openat resumed>) = 4 [pid 5324] <... futex resumed>) = 0 [pid 5323] openat(AT_FDCWD, ".", O_RDONLY [pid 5325] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] <... openat resumed>) = 4 [pid 5320] <... close resumed>) = 0 [pid 5326] <... prctl resumed>) = 0 [pid 5325] <... futex resumed>) = 0 [pid 5324] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5323] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] setpgid(0, 0 [pid 5325] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5324] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = 0 [pid 5326] <... setpgid resumed>) = 0 [pid 5325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5324] <... futex resumed>) = 0 [pid 5323] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5325] openat(AT_FDCWD, ".", O_RDONLY [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5326] <... openat resumed>) = 3 [pid 5325] <... openat resumed>) = 5 [pid 5322] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5325] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] write(3, "1000", 4 [pid 5325] <... futex resumed>) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5323] <... futex resumed>) = 0 [pid 5322] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 1 [pid 5319] <... futex resumed>) = 0 [pid 5326] <... write resumed>) = 4 [pid 5324] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] openat(AT_FDCWD, ".", O_RDONLY [pid 5322] openat(AT_FDCWD, ".", O_RDONLY [pid 5319] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] close(3 [pid 5325] renameat2(5, "./file2", 4, "./file1", 0 [pid 5324] <... futex resumed>) = 0 [pid 5323] <... openat resumed>) = 5 [pid 5322] <... openat resumed>) = 5 [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... futex resumed>) = 0 [pid 5326] <... close resumed>) = 0 [pid 5325] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5320] <... futex resumed>) = 1 [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5318] <... futex resumed>) = 0 [pid 5326] symlink("/dev/binderfs", "./binderfs" [pid 5322] <... futex resumed>) = 0 [pid 5319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5318] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5319] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] <... futex resumed>) = 0 [pid 5322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5320] openat(AT_FDCWD, ".", O_RDONLY [pid 5319] <... futex resumed>) = 0 [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] renameat2(5, "./file2", 4, "./file1", 0 [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] <... futex resumed>) = 0 [pid 5322] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5321] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] renameat2(5, "./file2", 4, "./file1", 0 [pid 5321] <... futex resumed>) = 0 [pid 5322] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] <... symlink resumed>) = 0 [pid 5323] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... futex resumed>) = 1 [pid 5320] <... openat resumed>) = 4 [pid 5319] <... futex resumed>) = 0 [pid 5326] <... futex resumed>) = 0 [pid 5323] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5320] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5321] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... futex resumed>) = 0 [pid 5326] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5323] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5321] <... futex resumed>) = 0 [pid 5323] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5326] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5325] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = 0 [pid 5322] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5320] <... futex resumed>) = 1 [pid 5319] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5318] <... futex resumed>) = 0 [pid 5326] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5325] <... futex resumed>) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5323] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5322] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5321] exit_group(0 [pid 5320] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5324] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = ? [pid 5322] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... exit_group resumed>) = ? [pid 5320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5318] <... futex resumed>) = 0 [pid 5326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5324] <... futex resumed>) = 0 [pid 5323] +++ exited with 0 +++ [pid 5322] <... futex resumed>) = 1 [pid 5321] +++ exited with 0 +++ [pid 5319] <... futex resumed>) = 0 [pid 5326] <... mmap resumed>) = 0x7f6db6363000 [pid 5325] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5324] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5319] exit_group(0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5326] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5325] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5322] <... futex resumed>) = ? [pid 5320] openat(AT_FDCWD, ".", O_RDONLY [pid 5319] <... exit_group resumed>) = ? [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5326] <... mprotect resumed>) = 0 [pid 5325] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] +++ exited with 0 +++ [pid 5320] <... openat resumed>) = 5 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5325] <... futex resumed>) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5320] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5325] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5324] exit_group(0 [pid 5320] <... futex resumed>) = 0 [pid 5326] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5325] <... futex resumed>) = ? [pid 5324] <... exit_group resumed>) = ? [pid 5320] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5326] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5325] +++ exited with 0 +++ [pid 5324] +++ exited with 0 +++ [pid 5319] +++ exited with 0 +++ [pid 5318] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5326] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5324, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] <... ioctl resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5326] <... clone3 resumed> => {parent_tid=[5327]}, 88) = 5327 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5326] rt_sigprocmask(SIG_SETMASK, [], [pid 5320] <... futex resumed>) = 0 [pid 5318] <... futex resumed>) = 1 [pid 5052] <... openat resumed>) = 3 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5326] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5320] renameat2(5, "./file2", 4, "./file1", 0 [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] newfstatat(3, "", ./strace-static-x86_64: Process 5327 attached [pid 5326] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5327] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5326] <... futex resumed>) = 0 [pid 5320] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5327] <... rseq resumed>) = 0 [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5320] <... futex resumed>) = 1 [pid 5318] <... futex resumed>) = 0 [pid 5055] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, [pid 5327] set_robust_list(0x7f6db63839a0, 24 [pid 5320] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... set_robust_list resumed>) = 0 [pid 5320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5318] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5320] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5318] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5327] rt_sigprocmask(SIG_SETMASK, [], [pid 5320] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5055] newfstatat(3, "", [pid 5053] close(3 [pid 5052] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5051] <... openat resumed>) = 3 [pid 5320] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] newfstatat(3, "", [pid 5327] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5320] <... futex resumed>) = 1 [pid 5318] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] unlink("./21/binderfs" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5327] memfd_create("syzkaller", 0 [pid 5320] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] exit_group(0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... unlink resumed>) = 0 [pid 5051] getdents64(3, [pid 5327] <... memfd_create resumed>) = 3 [pid 5320] <... futex resumed>) = ? [pid 5318] <... exit_group resumed>) = ? [pid 5055] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5320] +++ exited with 0 +++ [pid 5318] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5318, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] unlink("./22/binderfs") = 0 [pid 5051] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5055] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./21/binderfs" [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5328 [pid 5051] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5328 attached [pid 5327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5051] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] set_robust_list(0x555556b376a0, 24 [pid 5055] <... umount2 resumed>) = 0 [pid 5054] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5054] newfstatat(3, "", [pid 5328] <... set_robust_list resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5328] chdir("./22" [pid 5054] getdents64(3, [pid 5052] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] <... chdir resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = 0 [pid 5328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(AT_FDCWD, "./21/file2", [pid 5328] <... prctl resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5328] setpgid(0, 0 [pid 5054] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] <... setpgid resumed>) = 0 [pid 5327] <... write resumed>) = 524288 [pid 5055] newfstatat(AT_FDCWD, "./22/file2", [pid 5054] unlink("./20/binderfs" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] munmap(0x7f6dade00000, 138412032 [pid 5052] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5052] newfstatat(4, "", [pid 5327] <... munmap resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5328] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5327] ioctl(4, LOOP_SET_FD, 3 [pid 5054] <... unlink resumed>) = 0 [pid 5052] getdents64(4, [pid 5051] newfstatat(AT_FDCWD, "./21/file2", [pid 5055] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, [pid 5055] openat(AT_FDCWD, "./22/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5052] close(4 [pid 5055] newfstatat(4, "", [pid 5052] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] rmdir("./21/file2" [pid 5055] getdents64(4, [pid 5052] <... rmdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(3, [pid 5055] getdents64(4, [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] close(3 [pid 5055] close(4 [pid 5052] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./22/file2") = 0 [pid 5052] rmdir("./21" [pid 5055] getdents64(3, [pid 5052] <... rmdir resumed>) = 0 [pid 5328] write(3, "1000", 4 [pid 5327] <... ioctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5328] <... write resumed>) = 4 [pid 5327] close(3 [pid 5055] close(3 [pid 5051] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] close(3 [pid 5327] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5052] mkdir("./22", 0777 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5328] <... close resumed>) = 0 [pid 5327] close(4 [pid 5055] rmdir("./22" [pid 5051] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5328] symlink("/dev/binderfs", "./binderfs" [pid 5327] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5328] <... symlink resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5054] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5055] mkdir("./23", 0777 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] newfstatat(AT_FDCWD, "./20/file2", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5328] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5327] mkdir("./file2", 0777 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5328] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5054] umount2("./20/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] getdents64(4, [pid 5328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... openat resumed>) = 3 [pid 5328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5328] <... mmap resumed>) = 0x7f6db6363000 [pid 5054] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5328] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5327] <... mkdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5054] <... openat resumed>) = 4 [pid 5051] getdents64(4, [pid 5328] <... mprotect resumed>) = 0 [pid 5327] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5055] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] newfstatat(4, "", [pid 5051] close(4 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... close resumed>) = 0 [pid 5054] getdents64(4, [pid 5051] rmdir("./21/file2" [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] getdents64(4, [pid 5328] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5327] <... mount resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5328] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5327] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5051] getdents64(3, [pid 5328] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] close(4 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5329 attached [pid 5054] <... close resumed>) = 0 [pid 5051] close(3 [pid 5327] <... openat resumed>) = 3 [pid 5329] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5328] <... clone3 resumed> => {parent_tid=[5329]}, 88) = 5329 [pid 5054] rmdir("./20/file2" [pid 5329] <... rseq resumed>) = 0 [pid 5328] rt_sigprocmask(SIG_SETMASK, [], [pid 5327] chdir("./file2" [pid 5054] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5329] set_robust_list(0x7f6db63839a0, 24 [pid 5328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5327] <... chdir resumed>) = 0 [pid 5051] rmdir("./21" [pid 5329] <... set_robust_list resumed>) = 0 [pid 5328] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5327] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5329] rt_sigprocmask(SIG_SETMASK, [], [pid 5054] getdents64(3, [pid 5329] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5329] memfd_create("syzkaller", 0 [pid 5328] <... futex resumed>) = 0 [pid 5327] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] close(3 [pid 5051] <... rmdir resumed>) = 0 [pid 5329] <... memfd_create resumed>) = 3 [pid 5329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5327] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... close resumed>) = 0 [pid 5051] mkdir("./22", 0777 [pid 5329] <... mmap resumed>) = 0x7f6dade00000 [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5327] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] rmdir("./20" [pid 5051] <... mkdir resumed>) = 0 [pid 5326] <... futex resumed>) = 0 [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... rmdir resumed>) = 0 [pid 5054] mkdir("./21", 0777 [pid 5327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5329] <... write resumed>) = 524288 [pid 5054] <... mkdir resumed>) = 0 [pid 5327] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = -1 ENOSPC (No space left on device) [pid 5052] <... ioctl resumed>) = 0 [pid 5327] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 91.424058][ T5327] loop5: detected capacity change from 0 to 1024 [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5329] munmap(0x7f6dade00000, 138412032 [pid 5055] <... ioctl resumed>) = 0 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5052] close(3 [pid 5326] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5327] memfd_create("syzkaller", 0 [pid 5329] <... munmap resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5327] <... memfd_create resumed>) = 4 [pid 5326] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5330 attached [pid 5329] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5329] <... openat resumed>) = 4 [pid 5327] <... mmap resumed>) = 0x7f6dade00000 [pid 5330] set_robust_list(0x555556b376a0, 24 [pid 5329] ioctl(4, LOOP_SET_FD, 3 [pid 5327] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5330] <... set_robust_list resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5330 [pid 5330] chdir("./22" [pid 5055] close(3) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5330] <... chdir resumed>) = 0 [pid 5330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5330] setpgid(0, 0) = 0 [pid 5330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5331 [pid 5330] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5331 attached [pid 5331] set_robust_list(0x555556b376a0, 24 [pid 5330] write(3, "1000", 4 [pid 5331] <... set_robust_list resumed>) = 0 [pid 5330] <... write resumed>) = 4 [pid 5331] chdir("./23" [pid 5330] close(3 [pid 5331] <... chdir resumed>) = 0 [pid 5330] <... close resumed>) = 0 [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5330] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5331] <... prctl resumed>) = 0 [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] setpgid(0, 0 [pid 5330] <... futex resumed>) = 0 [pid 5331] <... setpgid resumed>) = 0 [pid 5330] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5330] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5330] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5051] <... ioctl resumed>) = 0 [pid 5330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5331] <... openat resumed>) = 3 [pid 5331] write(3, "1000", 4 [pid 5330] <... clone3 resumed> => {parent_tid=[5332]}, 88) = 5332 [pid 5331] <... write resumed>) = 4 [pid 5331] close(3 [pid 5330] rt_sigprocmask(SIG_SETMASK, [], [pid 5331] <... close resumed>) = 0 [pid 5330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5331] symlink("/dev/binderfs", "./binderfs" [pid 5330] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] <... symlink resumed>) = 0 [pid 5330] <... futex resumed>) = 0 [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5332 attached [pid 5332] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5329] <... ioctl resumed>) = 0 [pid 5329] close(3 [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5329] <... close resumed>) = 0 [pid 5331] <... futex resumed>) = 0 [pid 5329] close(4 [pid 5331] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5329] <... close resumed>) = 0 [pid 5329] mkdir("./file2", 0777) = 0 [pid 5332] set_robust_list(0x7f6db63839a0, 24 [pid 5051] close(3 [pid 5332] <... set_robust_list resumed>) = 0 [pid 5331] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5331] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5327] <... write resumed>) = 524288 [pid 5051] <... close resumed>) = 0 [pid 5331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5329] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5332] rt_sigprocmask(SIG_SETMASK, [], [pid 5331] <... mmap resumed>) = 0x7f6db6363000 [pid 5327] munmap(0x7f6dade00000, 138412032 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5331] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5327] <... munmap resumed>) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5332] memfd_create("syzkaller", 0 [pid 5331] <... mprotect resumed>) = 0 [pid 5327] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5331] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5331] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5327] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5333 attached [pid 5332] <... memfd_create resumed>) = 3 [pid 5332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5331] <... clone3 resumed> => {parent_tid=[5334]}, 88) = 5334 [pid 5333] set_robust_list(0x555556b376a0, 24 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5333 ./strace-static-x86_64: Process 5334 attached [pid 5333] <... set_robust_list resumed>) = 0 [pid 5332] <... mmap resumed>) = 0x7f6dade00000 [pid 5331] rt_sigprocmask(SIG_SETMASK, [], [pid 5327] close(4 [pid 5334] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5334] <... rseq resumed>) = 0 [pid 5333] chdir("./22" [pid 5331] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] close(3 [pid 5334] set_robust_list(0x7f6db63839a0, 24 [pid 5331] <... futex resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5334] <... set_robust_list resumed>) = 0 [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5333] <... chdir resumed>) = 0 [pid 5334] memfd_create("syzkaller", 0 [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5334] <... memfd_create resumed>) = 3 [pid 5333] <... prctl resumed>) = 0 [pid 5334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5333] setpgid(0, 0./strace-static-x86_64: Process 5335 attached [pid 5334] <... mmap resumed>) = 0x7f6dade00000 [pid 5333] <... setpgid resumed>) = 0 [pid 5335] set_robust_list(0x555556b376a0, 24 [pid 5334] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5335 [pid 5335] <... set_robust_list resumed>) = 0 [pid 5335] chdir("./21") = 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5335] setpgid(0, 0) = 0 [ 91.496861][ T5329] loop2: detected capacity change from 0 to 1024 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5335] write(3, "1000", 4) = 4 [pid 5335] close(3) = 0 [pid 5335] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5329] <... mount resumed>) = 0 [pid 5327] <... close resumed>) = 0 [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5329] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5335] <... futex resumed>) = 0 [pid 5329] chdir("./file2" [pid 5335] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5329] <... chdir resumed>) = 0 [pid 5335] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5329] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5333] <... openat resumed>) = 3 [pid 5332] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5335] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5329] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5329] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5333] write(3, "1000", 4 [pid 5329] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5335] <... mmap resumed>) = 0x7f6db6363000 [pid 5329] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5328] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] <... write resumed>) = 4 [pid 5328] <... futex resumed>) = 0 [pid 5333] close(3) = 0 [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5335] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5329] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5335] <... mprotect resumed>) = 0 [pid 5335] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5327] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5329] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] symlink("/dev/binderfs", "./binderfs" [pid 5329] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5327] openat(AT_FDCWD, ".", O_RDONLY [pid 5326] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5329] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5328] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5334] <... write resumed>) = 524288 [pid 5329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5328] <... futex resumed>) = 0 [pid 5327] <... openat resumed>) = 4 [pid 5326] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5336 attached [pid 5334] munmap(0x7f6dade00000, 138412032 [pid 5333] <... symlink resumed>) = 0 [pid 5329] memfd_create("syzkaller", 0 [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5335] <... clone3 resumed> => {parent_tid=[5336]}, 88) = 5336 [pid 5334] <... munmap resumed>) = 0 [pid 5329] <... memfd_create resumed>) = 4 [pid 5336] <... rseq resumed>) = 0 [pid 5335] rt_sigprocmask(SIG_SETMASK, [], [pid 5329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5336] set_robust_list(0x7f6db63839a0, 24 [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5334] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5329] <... mmap resumed>) = 0x7f6dade00000 [pid 5334] <... openat resumed>) = 4 [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5329] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5327] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] ioctl(4, LOOP_SET_FD, 3 [pid 5336] rt_sigprocmask(SIG_SETMASK, [], [pid 5335] <... futex resumed>) = 0 [pid 5336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5333] <... futex resumed>) = 0 [pid 5326] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] memfd_create("syzkaller", 0 [pid 5333] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5326] <... futex resumed>) = 0 [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5333] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5327] openat(AT_FDCWD, ".", O_RDONLY [pid 5336] <... memfd_create resumed>) = 3 [pid 5333] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5332] <... write resumed>) = 524288 [pid 5327] <... openat resumed>) = 5 [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5327] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5332] munmap(0x7f6dade00000, 138412032 [pid 5329] <... write resumed>) = 524288 [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5333] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5327] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5333] <... mprotect resumed>) = 0 [pid 5327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5327] renameat2(5, "./file2", 4, "./file1", 0 [pid 5336] <... write resumed>) = 524288 [pid 5333] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5332] <... munmap resumed>) = 0 [pid 5327] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5327] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5327] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5326] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5327] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5327] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5327] <... futex resumed>) = 0 [pid 5326] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5327] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] exit_group(0 [pid 5329] munmap(0x7f6dade00000, 138412032 [pid 5327] <... futex resumed>) = ? [pid 5326] <... exit_group resumed>) = ? [pid 5329] <... munmap resumed>) = 0 [pid 5327] +++ exited with 0 +++ [pid 5334] <... ioctl resumed>) = 0 [pid 5329] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5334] close(3 [pid 5329] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5334] <... close resumed>) = 0 [pid 5329] close(4 [pid 5326] +++ exited with 0 +++ [pid 5334] close(4 [pid 5332] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5329] <... close resumed>) = 0 [pid 5334] <... close resumed>) = 0 [pid 5333] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5333] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5332] <... openat resumed>) = 4 [pid 5336] munmap(0x7f6dade00000, 138412032 [pid 5334] mkdir("./file2", 0777 [pid 5336] <... munmap resumed>) = 0 [pid 5334] <... mkdir resumed>) = 0 [pid 5332] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5337 attached [pid 5333] <... clone3 resumed> => {parent_tid=[5337]}, 88) = 5337 [pid 5056] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5334] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5336] <... openat resumed>) = 4 [pid 5336] ioctl(4, LOOP_SET_FD, 3 [pid 5337] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5333] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5329] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5329] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5328] <... futex resumed>) = 0 [pid 5328] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5329] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5329] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5328] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5329] openat(AT_FDCWD, ".", O_RDONLY) = 5 [pid 5329] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5328] <... futex resumed>) = 0 [pid 5328] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5329] <... futex resumed>) = 1 [pid 5329] renameat2(5, "./file2", 4, "./file1", 0) = -1 ENOENT (No such file or directory) [pid 5329] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5328] <... futex resumed>) = 0 [pid 5328] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5328] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5329] <... futex resumed>) = 1 [pid 5329] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT) = -1 EFAULT (Bad address) [pid 5329] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5328] <... futex resumed>) = 0 [pid 5328] exit_group(0) = ? [pid 5056] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5337] <... rseq resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5337] set_robust_list(0x7f6db63839a0, 24 [pid 5333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] newfstatat(3, "", [pid 5337] <... set_robust_list resumed>) = 0 [pid 5333] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5337] rt_sigprocmask(SIG_SETMASK, [], [pid 5333] <... futex resumed>) = 0 [pid 5056] getdents64(3, [pid 5337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5329] <... futex resumed>) = ? [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5337] memfd_create("syzkaller", 0 [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5337] <... memfd_create resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5336] <... ioctl resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5337] <... mmap resumed>) = 0x7f6dade00000 [pid 5336] close(3 [pid 5056] unlink("./21/binderfs" [pid 5336] <... close resumed>) = 0 [pid 5336] close(4 [pid 5329] +++ exited with 0 +++ [pid 5328] +++ exited with 0 +++ [pid 5336] <... close resumed>) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5328, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5336] mkdir("./file2", 0777 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5336] <... mkdir resumed>) = 0 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5334] <... mount resumed>) = 0 [pid 5332] <... ioctl resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5336] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5334] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5053] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5334] <... openat resumed>) = 3 [pid 5056] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5332] close(3 [pid 5334] chdir("./file2" [pid 5332] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5334] <... chdir resumed>) = 0 [pid 5332] close(4 [pid 5053] <... openat resumed>) = 3 [pid 5334] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5332] <... close resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5336] <... mount resumed>) = 0 [pid 5334] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5332] mkdir("./file2", 0777 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5336] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5334] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] getdents64(3, [pid 5336] <... openat resumed>) = 3 [pid 5334] <... futex resumed>) = 1 [pid 5331] <... futex resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5336] chdir("./file2" [pid 5334] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5331] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... chdir resumed>) = 0 [pid 5334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5332] <... mkdir resumed>) = 0 [pid 5331] <... futex resumed>) = 0 [ 91.583129][ T5334] loop4: detected capacity change from 0 to 1024 [ 91.614270][ T5332] loop1: detected capacity change from 0 to 1024 [ 91.617293][ T5336] loop3: detected capacity change from 0 to 1024 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5337] <... write resumed>) = 524288 [pid 5336] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5334] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5332] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = 0 [pid 5337] munmap(0x7f6dade00000, 138412032 [pid 5336] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5337] <... munmap resumed>) = 0 [pid 5056] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5337] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5337] <... openat resumed>) = 4 [pid 5337] ioctl(4, LOOP_SET_FD, 3 [pid 5336] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(AT_FDCWD, "./21/file2", [pid 5053] unlink("./22/binderfs" [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5056] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5334] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5332] <... mount resumed>) = 0 [pid 5332] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5336] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5334] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5332] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5335] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] <... futex resumed>) = 1 [pid 5331] <... futex resumed>) = 0 [pid 5336] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5335] <... futex resumed>) = 0 [pid 5334] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5332] chdir("./file2" [pid 5331] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 4 [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5332] <... chdir resumed>) = 0 [pid 5332] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5332] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5331] <... futex resumed>) = 0 [pid 5332] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5334] memfd_create("syzkaller", 0 [pid 5332] <... futex resumed>) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5334] <... memfd_create resumed>) = 4 [pid 5332] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5330] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5330] <... futex resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5334] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] getdents64(4, [pid 5332] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5332] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5330] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5332] memfd_create("syzkaller", 0) = 4 [pid 5332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5332] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5337] <... ioctl resumed>) = 0 [pid 5337] close(3) = 0 [pid 5337] close(4) = 0 [pid 5337] mkdir("./file2", 0777 [pid 5056] getdents64(4, [pid 5337] <... mkdir resumed>) = 0 [pid 5336] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5332] <... write resumed>) = 524288 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5336] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5053] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5335] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] rmdir("./21/file2" [pid 5053] newfstatat(AT_FDCWD, "./22/file2", [pid 5337] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5336] memfd_create("syzkaller", 0 [pid 5335] <... futex resumed>) = 0 [pid 5332] munmap(0x7f6dade00000, 138412032 [pid 5056] <... rmdir resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] getdents64(3, [pid 5336] <... memfd_create resumed>) = 4 [pid 5332] <... munmap resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5337] <... mount resumed>) = 0 [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5334] <... write resumed>) = 524288 [pid 5332] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5056] close(3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5337] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5336] <... mmap resumed>) = 0x7f6dade00000 [pid 5332] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 91.681956][ T5337] loop0: detected capacity change from 0 to 1024 [pid 5053] openat(AT_FDCWD, "./22/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5337] <... openat resumed>) = 3 [pid 5336] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5332] close(4 [pid 5053] <... openat resumed>) = 4 [pid 5053] newfstatat(4, "", [pid 5337] chdir("./file2" [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5337] <... chdir resumed>) = 0 [pid 5053] getdents64(4, [pid 5337] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5334] munmap(0x7f6dade00000, 138412032 [pid 5056] <... close resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5337] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] rmdir("./21" [pid 5053] getdents64(4, [pid 5337] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] <... munmap resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5337] <... futex resumed>) = 1 [pid 5334] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5333] <... futex resumed>) = 0 [pid 5053] close(4 [pid 5334] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5333] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... close resumed>) = 0 [pid 5337] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5334] close(4 [pid 5333] <... futex resumed>) = 0 [pid 5053] rmdir("./22/file2" [pid 5056] mkdir("./22", 0777 [pid 5053] <... rmdir resumed>) = 0 [pid 5337] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5336] <... write resumed>) = 524288 [pid 5334] <... close resumed>) = 0 [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5332] <... close resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5053] getdents64(3, [pid 5337] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5333] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] close(3) = 0 [pid 5053] rmdir("./22" [pid 5337] <... futex resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5333] <... futex resumed>) = 0 [pid 5337] memfd_create("syzkaller", 0 [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5332] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5053] mkdir("./23", 0777 [pid 5337] <... memfd_create resumed>) = 4 [pid 5332] <... futex resumed>) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5053] <... mkdir resumed>) = 0 [pid 5330] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5332] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5332] <... openat resumed>) = 4 [pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5336] munmap(0x7f6dade00000, 138412032 [pid 5332] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5330] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... mmap resumed>) = 0x7f6dade00000 [pid 5336] <... munmap resumed>) = 0 [pid 5334] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... futex resumed>) = 0 [pid 5332] openat(AT_FDCWD, ".", O_RDONLY [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5332] <... openat resumed>) = 5 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5336] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5332] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... openat resumed>) = 3 [pid 5332] <... futex resumed>) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5336] close(4 [pid 5332] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5330] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5334] <... futex resumed>) = 1 [pid 5332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5331] <... futex resumed>) = 0 [pid 5330] <... futex resumed>) = 0 [pid 5332] renameat2(5, "./file2", 4, "./file1", 0 [pid 5331] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] <... close resumed>) = 0 [pid 5334] openat(AT_FDCWD, ".", O_RDONLY [pid 5332] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5331] <... futex resumed>) = 0 [pid 5332] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... futex resumed>) = 0 [pid 5330] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5330] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5332] <... futex resumed>) = 1 [pid 5332] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT) = -1 EFAULT (Bad address) [pid 5332] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5332] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5330] exit_group(0 [pid 5332] <... futex resumed>) = ? [pid 5330] <... exit_group resumed>) = ? [pid 5337] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5334] <... openat resumed>) = 4 [pid 5332] +++ exited with 0 +++ [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5330] +++ exited with 0 +++ [pid 5336] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5330, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5336] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5334] <... futex resumed>) = 0 [pid 5331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5336] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] openat(AT_FDCWD, ".", O_RDONLY [pid 5331] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5335] <... futex resumed>) = 0 [pid 5052] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] openat(AT_FDCWD, ".", O_RDONLY [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5334] <... openat resumed>) = 5 [pid 5331] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] <... openat resumed>) = 4 [pid 5334] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5336] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] <... futex resumed>) = 0 [pid 5331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... openat resumed>) = 3 [pid 5336] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5334] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5331] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(3, "", [pid 5336] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5331] <... futex resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5335] <... futex resumed>) = 0 [pid 5334] renameat2(5, "./file2", 4, "./file1", 0 [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] getdents64(3, [pid 5336] openat(AT_FDCWD, ".", O_RDONLY [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5334] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5336] <... openat resumed>) = 5 [pid 5334] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5334] <... futex resumed>) = 1 [pid 5331] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5331] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5336] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5331] <... futex resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5336] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5331] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] unlink("./22/binderfs" [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5335] <... futex resumed>) = 0 [pid 5334] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5052] <... unlink resumed>) = 0 [pid 5336] renameat2(5, "./file2", 4, "./file1", 0 [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5334] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5334] <... futex resumed>) = 1 [pid 5331] <... futex resumed>) = 0 [pid 5336] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... write resumed>) = 524288 [pid 5334] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5331] exit_group(0 [pid 5056] <... ioctl resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5334] <... futex resumed>) = ? [pid 5331] <... exit_group resumed>) = ? [pid 5334] +++ exited with 0 +++ [pid 5337] munmap(0x7f6dade00000, 138412032 [pid 5336] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5337] <... munmap resumed>) = 0 [pid 5335] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5335] <... futex resumed>) = 0 [pid 5335] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5331] +++ exited with 0 +++ [pid 5337] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5336] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5337] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5337] close(4) = 0 [pid 5056] close(3) = 0 [pid 5052] newfstatat(AT_FDCWD, "./22/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] openat(AT_FDCWD, "./22/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5336] <... futex resumed>) = 1 [pid 5052] <... openat resumed>) = 4 [pid 5336] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5338 attached [pid 5335] <... futex resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5338 [pid 5052] getdents64(4, [pid 5338] set_robust_list(0x555556b376a0, 24 [pid 5335] exit_group(0 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5338] <... set_robust_list resumed>) = 0 [pid 5336] <... futex resumed>) = ? [pid 5335] <... exit_group resumed>) = ? [pid 5055] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(4 [pid 5338] chdir("./22") = 0 [pid 5337] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] +++ exited with 0 +++ [pid 5335] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5338] setpgid(0, 0 [pid 5337] <... futex resumed>) = 1 [pid 5055] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] rmdir("./22/file2" [pid 5337] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5333] <... futex resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5052] <... rmdir resumed>) = 0 [pid 5338] <... setpgid resumed>) = 0 [pid 5333] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(3, "", [pid 5054] restart_syscall(<... resuming interrupted clone ...> [pid 5052] getdents64(3, [pid 5333] <... futex resumed>) = 1 [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5337] <... futex resumed>) = 0 [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... restart_syscall resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5338] <... openat resumed>) = 3 [pid 5337] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] getdents64(3, [pid 5052] close(3 [pid 5337] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... close resumed>) = 0 [pid 5338] write(3, "1000", 4) = 4 [pid 5337] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] rmdir("./22" [pid 5338] close(3 [pid 5337] <... futex resumed>) = 1 [pid 5333] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5338] <... close resumed>) = 0 [pid 5333] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] symlink("/dev/binderfs", "./binderfs" [pid 5333] <... futex resumed>) = 0 [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5337] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5054] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] mkdir("./23", 0777 [pid 5338] <... symlink resumed>) = 0 [pid 5337] <... openat resumed>) = 5 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] unlink("./23/binderfs" [pid 5052] <... mkdir resumed>) = 0 [pid 5338] <... futex resumed>) = 0 [pid 5337] <... futex resumed>) = 1 [pid 5333] <... futex resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5054] newfstatat(3, "", [pid 5337] renameat2(5, "./file2", 4, "./file1", 0 [pid 5333] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5338] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5337] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5333] <... futex resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5338] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5337] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] getdents64(3, [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5337] <... futex resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5337] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5333] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5338] <... mmap resumed>) = 0x7f6db6363000 [pid 5337] <... futex resumed>) = 0 [pid 5333] <... futex resumed>) = 1 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5337] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5054] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5338] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5337] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5333] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5338] <... mprotect resumed>) = 0 [pid 5337] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5054] unlink("./21/binderfs" [pid 5338] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5337] <... futex resumed>) = 0 [pid 5333] exit_group(0 [pid 5054] <... unlink resumed>) = 0 [pid 5338] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5333] <... exit_group resumed>) = ? [pid 5054] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5337] +++ exited with 0 +++ ./strace-static-x86_64: Process 5339 attached [pid 5333] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5339] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5338] <... clone3 resumed> => {parent_tid=[5339]}, 88) = 5339 [pid 5339] <... rseq resumed>) = 0 [pid 5338] rt_sigprocmask(SIG_SETMASK, [], [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5339] set_robust_list(0x7f6db63839a0, 24 [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] <... set_robust_list resumed>) = 0 [pid 5338] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] rt_sigprocmask(SIG_SETMASK, [], [pid 5053] <... ioctl resumed>) = 0 [pid 5339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5339] memfd_create("syzkaller", 0 [pid 5055] newfstatat(AT_FDCWD, "./23/file2", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5051] newfstatat(3, "", [pid 5055] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] newfstatat(AT_FDCWD, "./21/file2", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] openat(AT_FDCWD, "./23/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(3, [pid 5338] <... futex resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5054] umount2("./21/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5339] <... memfd_create resumed>) = 3 [pid 5055] getdents64(4, [pid 5054] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] <... openat resumed>) = 4 [pid 5051] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, [pid 5054] newfstatat(4, "", [pid 5339] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] close(4) = 0 [pid 5054] getdents64(4, [pid 5055] rmdir("./23/file2" [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5054] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] close(4 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5054] rmdir("./21/file2" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] getdents64(3, [pid 5054] <... rmdir resumed>) = 0 [pid 5053] close(3 [pid 5054] getdents64(3, [pid 5053] <... close resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] close(3) = 0 [pid 5051] unlink("./22/binderfs" [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5340 attached [pid 5055] close(3 [pid 5054] rmdir("./21" [pid 5051] <... unlink resumed>) = 0 [pid 5340] set_robust_list(0x555556b376a0, 24 [pid 5055] <... close resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5055] rmdir("./23" [pid 5340] <... set_robust_list resumed>) = 0 [pid 5054] mkdir("./22", 0777 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5340 [pid 5340] chdir("./23" [pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5051] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] mkdir("./24", 0777 [pid 5340] <... chdir resumed>) = 0 [pid 5340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5340] setpgid(0, 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5340] <... setpgid resumed>) = 0 [pid 5339] <... write resumed>) = 524288 [pid 5055] <... mkdir resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5052] <... ioctl resumed>) = 0 [pid 5340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5340] <... openat resumed>) = 3 [pid 5340] write(3, "1000", 4) = 4 [pid 5340] close(3) = 0 [pid 5340] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5052] close(3) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5340] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5340] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 ./strace-static-x86_64: Process 5341 attached [pid 5339] munmap(0x7f6dade00000, 138412032 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5051] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] set_robust_list(0x555556b376a0, 24 [pid 5340] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5339] <... munmap resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... ioctl resumed>) = 0 [pid 5341] <... set_robust_list resumed>) = 0 [pid 5339] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] close(3 [pid 5341] chdir("./23" [pid 5051] newfstatat(AT_FDCWD, "./22/file2", [pid 5339] <... openat resumed>) = 4 [pid 5054] <... close resumed>) = 0 [pid 5341] <... chdir resumed>) = 0 [pid 5339] ioctl(4, LOOP_SET_FD, 3 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./22/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5051] rmdir("./22/file2") = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5340] <... mprotect resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5342 [pid 5051] close(3./strace-static-x86_64: Process 5342 attached [pid 5341] <... prctl resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5341 [pid 5342] set_robust_list(0x555556b376a0, 24 [pid 5341] setpgid(0, 0 [pid 5340] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5051] <... close resumed>) = 0 [pid 5342] <... set_robust_list resumed>) = 0 [pid 5341] <... setpgid resumed>) = 0 [pid 5340] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5342] chdir("./22" [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5340] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5339] <... ioctl resumed>) = 0 [pid 5051] rmdir("./22" [pid 5342] <... chdir resumed>) = 0 [pid 5341] <... openat resumed>) = 3 [pid 5339] close(3 [pid 5051] <... rmdir resumed>) = 0 [pid 5341] write(3, "1000", 4 [pid 5340] <... clone3 resumed> => {parent_tid=[5343]}, 88) = 5343 [pid 5339] <... close resumed>) = 0 [pid 5342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5341] <... write resumed>) = 4 [pid 5340] rt_sigprocmask(SIG_SETMASK, [], [pid 5339] close(4 [pid 5342] <... prctl resumed>) = 0 [pid 5341] close(3 [pid 5340] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5341] <... close resumed>) = 0 [pid 5340] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] symlink("/dev/binderfs", "./binderfs" [pid 5340] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5343 attached [pid 5341] <... symlink resumed>) = 0 [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] mkdir("./23", 0777 [pid 5343] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5342] setpgid(0, 0 [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... close resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5342] <... setpgid resumed>) = 0 [pid 5341] <... futex resumed>) = 0 [pid 5339] mkdir("./file2", 0777 [pid 5343] <... rseq resumed>) = 0 [pid 5342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5341] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5339] <... mkdir resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5343] set_robust_list(0x7f6db63839a0, 24 [pid 5342] <... openat resumed>) = 3 [pid 5341] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5339] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5342] write(3, "1000", 4 [pid 5343] <... set_robust_list resumed>) = 0 [pid 5341] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5342] <... write resumed>) = 4 [pid 5341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5342] close(3 [pid 5341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5343] rt_sigprocmask(SIG_SETMASK, [], [pid 5342] <... close resumed>) = 0 [pid 5341] <... mmap resumed>) = 0x7f6db6363000 [pid 5055] close(3 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5343] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5342] symlink("/dev/binderfs", "./binderfs" [pid 5341] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5343] memfd_create("syzkaller", 0 [pid 5342] <... symlink resumed>) = 0 [pid 5341] <... mprotect resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5343] <... memfd_create resumed>) = 3 [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5342] <... futex resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5342] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5341] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5342] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5341] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5343] <... mmap resumed>) = 0x7f6dade00000 [ 91.922903][ T5339] loop5: detected capacity change from 0 to 1024 ./strace-static-x86_64: Process 5345 attached ./strace-static-x86_64: Process 5344 attached [pid 5343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5342] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5345] set_robust_list(0x555556b376a0, 24) = 0 [pid 5345] chdir("./24") = 0 [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5345] setpgid(0, 0) = 0 [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5344] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5345] write(3, "1000", 4 [pid 5342] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5341] <... clone3 resumed> => {parent_tid=[5344]}, 88) = 5344 [pid 5345] <... write resumed>) = 4 [pid 5344] <... rseq resumed>) = 0 [pid 5342] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5341] rt_sigprocmask(SIG_SETMASK, [], [pid 5345] close(3 [pid 5344] set_robust_list(0x7f6db63839a0, 24 [pid 5342] <... mmap resumed>) = 0x7f6db6363000 [pid 5341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5345] <... close resumed>) = 0 [pid 5344] <... set_robust_list resumed>) = 0 [pid 5341] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] symlink("/dev/binderfs", "./binderfs" [pid 5344] rt_sigprocmask(SIG_SETMASK, [], [pid 5342] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5341] <... futex resumed>) = 0 [pid 5345] <... symlink resumed>) = 0 [pid 5344] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] <... mount resumed>) = 0 [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] memfd_create("syzkaller", 0 [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5339] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5345] <... futex resumed>) = 0 [pid 5344] <... memfd_create resumed>) = 3 [pid 5342] <... mprotect resumed>) = 0 [pid 5339] <... openat resumed>) = 3 [pid 5345] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5339] chdir("./file2" [pid 5345] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5344] <... mmap resumed>) = 0x7f6dade00000 [pid 5342] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5339] <... chdir resumed>) = 0 [pid 5345] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5339] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5345 [pid 5345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5339] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] <... mmap resumed>) = 0x7f6db6363000 [pid 5342] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5339] <... futex resumed>) = 1 [pid 5339] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5345] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5342] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5345] <... mprotect resumed>) = 0 [pid 5345] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5342] <... clone3 resumed> => {parent_tid=[5346]}, 88) = 5346 [pid 5342] rt_sigprocmask(SIG_SETMASK, [], [pid 5345] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5342] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5346 attached [pid 5345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5342] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5342] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5347 attached [pid 5346] <... rseq resumed>) = 0 [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5346] set_robust_list(0x7f6db63839a0, 24 [pid 5345] <... clone3 resumed> => {parent_tid=[5347]}, 88) = 5347 [pid 5346] <... set_robust_list resumed>) = 0 [pid 5345] rt_sigprocmask(SIG_SETMASK, [], [pid 5347] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5346] rt_sigprocmask(SIG_SETMASK, [], [pid 5345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5347] <... rseq resumed>) = 0 [pid 5346] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5345] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] <... write resumed>) = 524288 [pid 5338] <... futex resumed>) = 0 [pid 5347] set_robust_list(0x7f6db63839a0, 24 [pid 5346] memfd_create("syzkaller", 0 [pid 5345] <... futex resumed>) = 0 [pid 5338] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] <... set_robust_list resumed>) = 0 [pid 5346] <... memfd_create resumed>) = 3 [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5347] rt_sigprocmask(SIG_SETMASK, [], [pid 5346] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5347] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] <... futex resumed>) = 0 [pid 5338] <... futex resumed>) = 1 [pid 5347] memfd_create("syzkaller", 0 [pid 5339] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5347] <... memfd_create resumed>) = 3 [pid 5347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5347] <... mmap resumed>) = 0x7f6dade00000 [pid 5339] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5343] <... write resumed>) = 524288 [pid 5051] <... ioctl resumed>) = 0 [pid 5339] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5339] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] <... futex resumed>) = 0 [pid 5338] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] <... futex resumed>) = 0 [pid 5051] close(3 [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] <... close resumed>) = 0 [pid 5346] <... write resumed>) = 524288 [pid 5343] munmap(0x7f6dade00000, 138412032 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5344] munmap(0x7f6dade00000, 138412032 [pid 5339] memfd_create("syzkaller", 0 [pid 5344] <... munmap resumed>) = 0 [pid 5343] <... munmap resumed>) = 0 [pid 5339] <... memfd_create resumed>) = 4 ./strace-static-x86_64: Process 5348 attached [pid 5344] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5343] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5348] set_robust_list(0x555556b376a0, 24) = 0 [pid 5343] <... openat resumed>) = 4 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5348 [pid 5348] chdir("./23" [pid 5343] ioctl(4, LOOP_SET_FD, 3 [pid 5346] munmap(0x7f6dade00000, 138412032 [pid 5344] <... openat resumed>) = 4 [pid 5339] <... mmap resumed>) = 0x7f6dade00000 [pid 5339] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5348] <... chdir resumed>) = 0 [pid 5347] <... write resumed>) = 524288 [pid 5346] <... munmap resumed>) = 0 [pid 5344] ioctl(4, LOOP_SET_FD, 3 [pid 5343] <... ioctl resumed>) = 0 [pid 5339] <... write resumed>) = 524288 [pid 5348] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5347] munmap(0x7f6dade00000, 138412032 [pid 5346] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5348] <... prctl resumed>) = 0 [pid 5347] <... munmap resumed>) = 0 [pid 5346] <... openat resumed>) = 4 [pid 5347] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5346] ioctl(4, LOOP_SET_FD, 3 [pid 5348] setpgid(0, 0 [pid 5347] <... openat resumed>) = 4 [pid 5348] <... setpgid resumed>) = 0 [pid 5347] ioctl(4, LOOP_SET_FD, 3 [pid 5343] close(3 [pid 5339] munmap(0x7f6dade00000, 138412032 [pid 5348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5344] <... ioctl resumed>) = 0 [pid 5343] <... close resumed>) = 0 [pid 5339] <... munmap resumed>) = 0 [pid 5348] <... openat resumed>) = 3 [pid 5347] <... ioctl resumed>) = 0 [pid 5346] <... ioctl resumed>) = 0 [pid 5348] write(3, "1000", 4 [pid 5347] close(3 [pid 5348] <... write resumed>) = 4 [pid 5347] <... close resumed>) = 0 [pid 5346] close(3 [pid 5348] close(3 [pid 5347] close(4 [pid 5346] <... close resumed>) = 0 [pid 5339] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5348] <... close resumed>) = 0 [pid 5347] <... close resumed>) = 0 [pid 5346] close(4 [pid 5339] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5347] mkdir("./file2", 0777 [pid 5346] <... close resumed>) = 0 [pid 5344] close(3 [pid 5348] symlink("/dev/binderfs", "./binderfs" [pid 5343] close(4 [pid 5348] <... symlink resumed>) = 0 [pid 5347] <... mkdir resumed>) = 0 [pid 5346] mkdir("./file2", 0777 [pid 5344] <... close resumed>) = 0 [pid 5339] close(4 [pid 5343] <... close resumed>) = 0 [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] close(4 [pid 5348] <... futex resumed>) = 0 [pid 5344] <... close resumed>) = 0 [pid 5348] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5347] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5346] <... mkdir resumed>) = 0 [pid 5344] mkdir("./file2", 0777 [pid 5343] mkdir("./file2", 0777 [pid 5339] <... close resumed>) = 0 [pid 5348] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5346] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5348] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5344] <... mkdir resumed>) = 0 [pid 5348] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5343] <... mkdir resumed>) = 0 [pid 5348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5343] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5348] <... mmap resumed>) = 0x7f6db6363000 [pid 5339] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 92.045185][ T5343] loop2: detected capacity change from 0 to 1024 [ 92.063196][ T5344] loop1: detected capacity change from 0 to 1024 [ 92.073941][ T5346] loop3: detected capacity change from 0 to 1024 [ 92.080730][ T5347] loop4: detected capacity change from 0 to 1024 [pid 5338] <... futex resumed>) = 0 [pid 5348] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5339] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] <... mprotect resumed>) = 0 [pid 5338] <... futex resumed>) = 0 [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5348] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5344] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5348] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5339] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5339] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5339] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] <... futex resumed>) = 0 [pid 5339] openat(AT_FDCWD, ".", O_RDONLY [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5349 attached [pid 5346] <... mount resumed>) = 0 [pid 5339] <... openat resumed>) = 5 [pid 5349] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5339] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] <... rseq resumed>) = 0 [pid 5339] <... futex resumed>) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5349] set_robust_list(0x7f6db63839a0, 24 [pid 5348] <... clone3 resumed> => {parent_tid=[5349]}, 88) = 5349 [pid 5346] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5343] <... mount resumed>) = 0 [pid 5339] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] <... set_robust_list resumed>) = 0 [pid 5348] rt_sigprocmask(SIG_SETMASK, [], [pid 5347] <... mount resumed>) = 0 [pid 5346] <... openat resumed>) = 3 [pid 5344] <... mount resumed>) = 0 [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] <... futex resumed>) = 0 [pid 5349] rt_sigprocmask(SIG_SETMASK, [], [pid 5348] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5347] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5346] chdir("./file2" [pid 5344] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5343] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5339] renameat2(5, "./file2", 4, "./file1", 0 [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5348] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] <... openat resumed>) = 3 [pid 5346] <... chdir resumed>) = 0 [pid 5344] <... openat resumed>) = 3 [pid 5343] <... openat resumed>) = 3 [pid 5339] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5349] memfd_create("syzkaller", 0 [pid 5348] <... futex resumed>) = 0 [pid 5347] chdir("./file2" [pid 5346] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5344] chdir("./file2" [pid 5343] chdir("./file2" [pid 5339] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] <... memfd_create resumed>) = 3 [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5347] <... chdir resumed>) = 0 [pid 5346] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5344] <... chdir resumed>) = 0 [pid 5343] <... chdir resumed>) = 0 [pid 5339] <... futex resumed>) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5347] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5346] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5343] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5339] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] <... mmap resumed>) = 0x7f6dade00000 [pid 5347] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5346] <... futex resumed>) = 1 [pid 5344] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5343] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5342] <... futex resumed>) = 0 [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] <... futex resumed>) = 0 [pid 5347] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5344] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5338] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5347] <... futex resumed>) = 1 [pid 5346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5345] <... futex resumed>) = 0 [pid 5344] <... futex resumed>) = 1 [pid 5343] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5339] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5347] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5346] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5345] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5343] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5341] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5345] <... futex resumed>) = 0 [pid 5344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5339] <... futex resumed>) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5347] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5344] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5343] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5339] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] exit_group(0 [pid 5346] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5339] <... futex resumed>) = ? [pid 5338] <... exit_group resumed>) = ? [pid 5349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5346] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] +++ exited with 0 +++ [pid 5338] +++ exited with 0 +++ [pid 5346] <... futex resumed>) = 1 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5347] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5346] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5342] <... futex resumed>) = 0 [pid 5056] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] <... futex resumed>) = 1 [pid 5346] <... futex resumed>) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5344] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5343] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5342] <... futex resumed>) = 1 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5347] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5346] memfd_create("syzkaller", 0 [pid 5345] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5347] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5345] <... futex resumed>) = 0 [pid 5344] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] memfd_create("syzkaller", 0 [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5344] <... futex resumed>) = 1 [pid 5343] <... futex resumed>) = 1 [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5347] <... memfd_create resumed>) = 4 [pid 5344] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5343] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5346] <... memfd_create resumed>) = 4 [pid 5344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5347] <... mmap resumed>) = 0x7f6dade00000 [pid 5346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5344] memfd_create("syzkaller", 0 [pid 5343] memfd_create("syzkaller", 0 [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] newfstatat(3, "", [pid 5349] <... write resumed>) = 524288 [pid 5346] <... mmap resumed>) = 0x7f6dade00000 [pid 5344] <... memfd_create resumed>) = 4 [pid 5343] <... memfd_create resumed>) = 4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5349] munmap(0x7f6dade00000, 138412032 [pid 5347] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] getdents64(3, [pid 5349] <... munmap resumed>) = 0 [pid 5344] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5349] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5056] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] <... mmap resumed>) = 0x7f6dade00000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] <... openat resumed>) = 4 [pid 5347] <... write resumed>) = 524288 [pid 5346] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5343] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5349] ioctl(4, LOOP_SET_FD, 3 [pid 5347] munmap(0x7f6dade00000, 138412032 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5344] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5343] <... write resumed>) = 524288 [pid 5056] unlink("./22/binderfs" [pid 5347] <... munmap resumed>) = 0 [pid 5347] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5347] close(4) = 0 [pid 5344] <... write resumed>) = 524288 [pid 5343] munmap(0x7f6dade00000, 138412032 [pid 5056] <... unlink resumed>) = 0 [pid 5056] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] <... munmap resumed>) = 0 [pid 5343] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5349] <... ioctl resumed>) = 0 [pid 5347] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] <... write resumed>) = 524288 [pid 5344] munmap(0x7f6dade00000, 138412032 [pid 5343] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5349] close(3 [pid 5347] <... futex resumed>) = 1 [pid 5345] <... futex resumed>) = 0 [pid 5343] close(4 [pid 5349] <... close resumed>) = 0 [pid 5347] openat(AT_FDCWD, ".", O_RDONLY [pid 5346] munmap(0x7f6dade00000, 138412032 [pid 5345] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] <... munmap resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5349] close(4 [pid 5347] <... openat resumed>) = 4 [pid 5345] <... futex resumed>) = 0 [pid 5056] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] <... close resumed>) = 0 [pid 5347] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] <... munmap resumed>) = 0 [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5344] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5343] <... close resumed>) = 0 [pid 5349] mkdir("./file2", 0777 [pid 5347] <... futex resumed>) = 0 [pid 5346] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5345] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5056] newfstatat(AT_FDCWD, "./22/file2", [pid 5349] <... mkdir resumed>) = 0 [pid 5347] openat(AT_FDCWD, ".", O_RDONLY [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5344] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5347] <... openat resumed>) = 5 [pid 5346] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5347] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] close(4 [pid 5344] close(4 [pid 5343] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5347] <... futex resumed>) = 1 [pid 5346] <... close resumed>) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5056] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] renameat2(5, "./file2", 4, "./file1", 0 [pid 5345] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./22/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5347] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5345] <... futex resumed>) = 0 [pid 5343] <... futex resumed>) = 1 [pid 5340] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5347] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5343] openat(AT_FDCWD, ".", O_RDONLY [pid 5340] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(4, "", [pid 5347] <... futex resumed>) = 0 [pid 5346] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5344] <... close resumed>) = 0 [pid 5343] <... openat resumed>) = 4 [pid 5340] <... futex resumed>) = 0 [pid 5347] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5346] <... futex resumed>) = 1 [pid 5345] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] <... futex resumed>) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5347] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5345] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5347] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5346] openat(AT_FDCWD, ".", O_RDONLY [pid 5343] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(4, [pid 5347] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5346] <... openat resumed>) = 4 [pid 5343] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5347] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] openat(AT_FDCWD, ".", O_RDONLY [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5340] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5347] <... futex resumed>) = 1 [pid 5346] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] <... futex resumed>) = 0 [pid 5343] <... openat resumed>) = 5 [pid 5342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5340] <... futex resumed>) = 0 [pid 5056] getdents64(4, [pid 5347] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5346] <... futex resumed>) = 0 [pid 5345] exit_group(0 [pid 5344] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5347] <... futex resumed>) = ? [pid 5346] openat(AT_FDCWD, ".", O_RDONLY [pid 5345] <... exit_group resumed>) = ? [pid 5344] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5347] +++ exited with 0 +++ [pid 5346] <... openat resumed>) = 5 [pid 5345] +++ exited with 0 +++ [pid 5343] <... futex resumed>) = 0 [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5341] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(4 [pid 5349] <... mount resumed>) = 0 [pid 5346] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] openat(AT_FDCWD, ".", O_RDONLY [pid 5343] renameat2(5, "./file2", 4, "./file1", 0 [pid 5342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5346] <... futex resumed>) = 0 [pid 5344] <... openat resumed>) = 4 [pid 5343] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5342] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... close resumed>) = 0 [pid 5349] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5346] renameat2(5, "./file2", 4, "./file1", 0 [pid 5344] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] <... futex resumed>) = 0 [pid 5341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5340] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] rmdir("./22/file2" [pid 5349] <... openat resumed>) = 3 [pid 5346] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5344] <... futex resumed>) = 0 [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5343] <... futex resumed>) = 0 [pid 5341] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] chdir("./file2" [pid 5346] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] openat(AT_FDCWD, ".", O_RDONLY [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5343] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5349] <... chdir resumed>) = 0 [pid 5346] <... futex resumed>) = 1 [pid 5344] <... openat resumed>) = 5 [pid 5342] <... futex resumed>) = 0 [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5340] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... rmdir resumed>) = 0 [pid 5349] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5346] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5344] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5342] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5344] <... futex resumed>) = 1 [pid 5343] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] <... futex resumed>) = 0 [pid 5341] <... futex resumed>) = 0 [ 92.199416][ T5349] loop0: detected capacity change from 0 to 1024 [pid 5349] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5344] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5343] <... futex resumed>) = 1 [pid 5342] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5341] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] <... futex resumed>) = 0 [pid 5349] <... futex resumed>) = 1 [pid 5348] <... futex resumed>) = 0 [pid 5346] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5341] <... futex resumed>) = 0 [pid 5349] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5348] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] renameat2(5, "./file2", 4, "./file1", 0 [pid 5343] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5340] exit_group(0 [pid 5056] getdents64(3, [pid 5055] <... openat resumed>) = 3 [pid 5348] <... futex resumed>) = 0 [pid 5343] <... futex resumed>) = ? [pid 5340] <... exit_group resumed>) = ? [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5346] <... futex resumed>) = 1 [pid 5344] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5343] +++ exited with 0 +++ [pid 5342] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5346] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5344] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] exit_group(0 [pid 5055] newfstatat(3, "", [pid 5346] <... futex resumed>) = ? [pid 5344] <... futex resumed>) = 1 [pid 5342] <... exit_group resumed>) = ? [pid 5341] <... futex resumed>) = 0 [pid 5056] close(3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5346] +++ exited with 0 +++ [pid 5340] +++ exited with 0 +++ [pid 5056] <... close resumed>) = 0 [pid 5055] getdents64(3, [pid 5344] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] rmdir("./22" [pid 5344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5341] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5340, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5349] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5344] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5341] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... rmdir resumed>) = 0 [pid 5055] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5349] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5349] <... futex resumed>) = 1 [pid 5348] <... futex resumed>) = 0 [pid 5344] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] +++ exited with 0 +++ [pid 5056] mkdir("./23", 0777 [pid 5055] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5349] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5348] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] <... futex resumed>) = 1 [pid 5341] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5348] <... futex resumed>) = 0 [pid 5344] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] exit_group(0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5342, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5055] unlink("./24/binderfs" [pid 5053] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] memfd_create("syzkaller", 0 [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5344] <... futex resumed>) = ? [pid 5341] <... exit_group resumed>) = ? [pid 5054] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] <... memfd_create resumed>) = 4 [pid 5344] +++ exited with 0 +++ [pid 5341] +++ exited with 0 +++ [pid 5055] <... unlink resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... openat resumed>) = 3 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5349] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... openat resumed>) = 3 [pid 5053] newfstatat(3, "", [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5054] newfstatat(3, "", [pid 5052] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5052] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5054] getdents64(3, [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./23/binderfs") = 0 [pid 5053] getdents64(3, [pid 5052] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... umount2 resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./24/file2", [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5053] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5055] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] unlink("./23/binderfs" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] unlink("./22/binderfs" [pid 5053] <... unlink resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./23/file2", [pid 5349] <... write resumed>) = 524288 [pid 5055] openat(AT_FDCWD, "./24/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] <... unlink resumed>) = 0 [pid 5349] munmap(0x7f6dade00000, 138412032 [pid 5055] <... openat resumed>) = 4 [pid 5054] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5349] <... munmap resumed>) = 0 [pid 5349] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5052] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(4, "", [pid 5349] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] close(4 [pid 5055] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] openat(AT_FDCWD, "./23/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] <... close resumed>) = 0 [pid 5055] getdents64(4, [pid 5052] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] newfstatat(4, "", [pid 5349] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5349] <... futex resumed>) = 1 [pid 5348] <... futex resumed>) = 0 [pid 5054] <... umount2 resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5348] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] rmdir("./23/file2" [pid 5349] openat(AT_FDCWD, ".", O_RDONLY [pid 5348] <... futex resumed>) = 0 [pid 5055] close(4 [pid 5054] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5349] <... openat resumed>) = 4 [pid 5349] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5349] <... futex resumed>) = 1 [pid 5348] <... futex resumed>) = 0 [pid 5055] rmdir("./24/file2" [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5349] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5348] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(AT_FDCWD, "./22/file2", [pid 5053] newfstatat(AT_FDCWD, "./23/file2", [pid 5052] close(3 [pid 5348] <... futex resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./23" [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... rmdir resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... ioctl resumed>) = 0 [pid 5054] umount2("./22/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] close(3 [pid 5055] getdents64(3, [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] <... openat resumed>) = 5 [pid 5056] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5349] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] close(3 [pid 5054] openat(AT_FDCWD, "./22/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] openat(AT_FDCWD, "./23/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5348] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5052] mkdir("./24", 0777 [pid 5348] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5055] rmdir("./24" [pid 5053] <... openat resumed>) = 4 [pid 5052] <... mkdir resumed>) = 0 [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... openat resumed>) = 4 [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5350 attached [pid 5349] <... futex resumed>) = 1 [pid 5055] <... rmdir resumed>) = 0 [pid 5054] newfstatat(4, "", [pid 5053] newfstatat(4, "", [pid 5350] set_robust_list(0x555556b376a0, 24 [pid 5349] renameat2(5, "./file2", 4, "./file1", 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5350] <... set_robust_list resumed>) = 0 [pid 5349] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5052] <... openat resumed>) = 3 [pid 5350] chdir("./23" [pid 5349] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5350 [pid 5055] mkdir("./25", 0777 [pid 5054] getdents64(4, [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5054] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] close(4) = 0 [pid 5053] getdents64(4, [pid 5350] <... chdir resumed>) = 0 [pid 5349] <... futex resumed>) = 1 [pid 5348] <... futex resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5054] rmdir("./22/file2" [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5348] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5348] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5350] <... prctl resumed>) = 0 [pid 5053] getdents64(4, [pid 5349] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5350] setpgid(0, 0 [pid 5349] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5055] <... openat resumed>) = 3 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5350] <... setpgid resumed>) = 0 [pid 5349] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5053] close(4 [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] <... rmdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5349] <... futex resumed>) = 1 [pid 5348] <... futex resumed>) = 0 [pid 5053] rmdir("./23/file2" [pid 5349] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5348] exit_group(0) = ? [pid 5349] <... futex resumed>) = ? [pid 5054] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] close(3) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5054] rmdir("./22") = 0 [pid 5350] <... openat resumed>) = 3 [pid 5054] mkdir("./23", 0777 [pid 5350] write(3, "1000", 4 [pid 5349] +++ exited with 0 +++ [pid 5348] +++ exited with 0 +++ [pid 5053] getdents64(3, [pid 5350] <... write resumed>) = 4 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5348, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5350] close(3 [pid 5053] close(3 [pid 5350] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5350] symlink("/dev/binderfs", "./binderfs" [pid 5053] rmdir("./23" [pid 5350] <... symlink resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5053] <... rmdir resumed>) = 0 [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5350] <... futex resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5053] mkdir("./24", 0777 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5350] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5051] <... openat resumed>) = 3 [pid 5051] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5053] <... mkdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5350] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... ioctl resumed>) = 0 [pid 5051] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5350] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5350] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5051] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5350] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5051] unlink("./23/binderfs" [pid 5053] <... openat resumed>) = 3 [pid 5051] <... unlink resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5350] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5051] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5350] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5350] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5351]}, 88) = 5351 [pid 5052] close(3./strace-static-x86_64: Process 5351 attached [pid 5350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5350] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5351] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5052] <... close resumed>) = 0 [pid 5351] <... rseq resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5351] set_robust_list(0x7f6db63839a0, 24 [pid 5055] close(3) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5352 attached [pid 5351] <... set_robust_list resumed>) = 0 [pid 5351] rt_sigprocmask(SIG_SETMASK, [], [pid 5352] set_robust_list(0x555556b376a0, 24 [pid 5351] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5352 [pid 5352] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5353 attached [pid 5352] chdir("./24" [pid 5351] memfd_create("syzkaller", 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5353] set_robust_list(0x555556b376a0, 24 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5353 [pid 5351] <... memfd_create resumed>) = 3 [pid 5353] <... set_robust_list resumed>) = 0 [pid 5353] chdir("./25" [pid 5352] <... chdir resumed>) = 0 [pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5351] <... mmap resumed>) = 0x7f6dade00000 [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5353] <... chdir resumed>) = 0 [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... prctl resumed>) = 0 [pid 5353] setpgid(0, 0 [pid 5352] <... prctl resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./23/file2", [pid 5352] setpgid(0, 0) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5353] <... setpgid resumed>) = 0 [pid 5051] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... openat resumed>) = 3 [pid 5051] openat(AT_FDCWD, "./23/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", [pid 5352] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5353] write(3, "1000", 4 [pid 5051] getdents64(4, [pid 5353] <... write resumed>) = 4 [pid 5352] write(3, "1000", 4 [pid 5351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5353] close(3 [pid 5352] <... write resumed>) = 4 [pid 5054] <... ioctl resumed>) = 0 [pid 5051] getdents64(4, [pid 5353] <... close resumed>) = 0 [pid 5353] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5352] close(3 [pid 5351] <... write resumed>) = 524288 [pid 5054] close(3 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5352] <... close resumed>) = 0 [pid 5051] close(4) = 0 [pid 5051] rmdir("./23/file2" [pid 5352] symlink("/dev/binderfs", "./binderfs" [pid 5351] munmap(0x7f6dade00000, 138412032 [pid 5051] <... rmdir resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5351] <... munmap resumed>) = 0 [pid 5352] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5354 attached [pid 5051] getdents64(3, [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] close(3) = 0 [pid 5051] rmdir("./23" [pid 5352] <... futex resumed>) = 0 [pid 5351] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5351] <... openat resumed>) = 4 [pid 5051] <... rmdir resumed>) = 0 [pid 5351] ioctl(4, LOOP_SET_FD, 3 [pid 5353] <... futex resumed>) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5354 [pid 5353] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5353] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5051] mkdir("./24", 0777 [pid 5353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5352] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5353] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5353] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5051] <... openat resumed>) = 3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5353] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5353] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} => {parent_tid=[5355]}, 88) = 5355 [pid 5353] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 5355 attached [pid 5353] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5353] <... futex resumed>) = 0 [pid 5355] <... rseq resumed>) = 0 [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5355] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5355] rt_sigprocmask(SIG_SETMASK, [], [pid 5053] close(3 [pid 5355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5354] set_robust_list(0x555556b376a0, 24 [pid 5352] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5351] <... ioctl resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5355] memfd_create("syzkaller", 0 [pid 5354] <... set_robust_list resumed>) = 0 [pid 5352] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5351] close(3 [pid 5355] <... memfd_create resumed>) = 3 [pid 5352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5351] <... close resumed>) = 0 [pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5354] chdir("./23" [pid 5352] <... mmap resumed>) = 0x7f6db6363000 [pid 5355] <... mmap resumed>) = 0x7f6dade00000 [pid 5354] <... chdir resumed>) = 0 [pid 5352] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5351] close(4 [pid 5354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5352] <... mprotect resumed>) = 0 [pid 5355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5354] <... prctl resumed>) = 0 [pid 5352] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5351] <... close resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5354] setpgid(0, 0 [pid 5352] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5351] mkdir("./file2", 0777 [pid 5352] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5351] <... mkdir resumed>) = 0 [pid 5352] <... clone3 resumed> => {parent_tid=[5357]}, 88) = 5357 [pid 5351] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, ""./strace-static-x86_64: Process 5357 attached [pid 5352] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5356 attached [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5356 [pid 5356] set_robust_list(0x555556b376a0, 24 [pid 5352] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5357] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5354] <... setpgid resumed>) = 0 [pid 5352] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] <... rseq resumed>) = 0 [pid 5352] <... futex resumed>) = 0 [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5357] set_robust_list(0x7f6db63839a0, 24 [pid 5356] <... set_robust_list resumed>) = 0 [pid 5357] <... set_robust_list resumed>) = 0 [pid 5356] chdir("./24" [pid 5354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5357] rt_sigprocmask(SIG_SETMASK, [], [pid 5356] <... chdir resumed>) = 0 [pid 5354] <... openat resumed>) = 3 [pid 5357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5356] setpgid(0, 0 [pid 5357] memfd_create("syzkaller", 0 [pid 5356] <... setpgid resumed>) = 0 [pid 5357] <... memfd_create resumed>) = 3 [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5356] <... openat resumed>) = 3 [pid 5354] write(3, "1000", 4 [pid 5357] <... mmap resumed>) = 0x7f6dade00000 [pid 5356] write(3, "1000", 4 [pid 5354] <... write resumed>) = 4 [pid 5356] <... write resumed>) = 4 [pid 5355] <... write resumed>) = 524288 [pid 5356] close(3) = 0 [pid 5356] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5354] close(3) = 0 [pid 5356] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5354] symlink("/dev/binderfs", "./binderfs" [pid 5356] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5356] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5356] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5354] <... symlink resumed>) = 0 [pid 5356] <... mprotect resumed>) = 0 [pid 5356] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5355] munmap(0x7f6dade00000, 138412032 [pid 5356] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5355] <... munmap resumed>) = 0 [pid 5356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5358 attached [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] <... clone3 resumed> => {parent_tid=[5358]}, 88) = 5358 [pid 5358] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5356] rt_sigprocmask(SIG_SETMASK, [], [pid 5355] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5358] <... rseq resumed>) = 0 [pid 5356] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5355] <... openat resumed>) = 4 [pid 5358] set_robust_list(0x7f6db63839a0, 24 [pid 5357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5356] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... set_robust_list resumed>) = 0 [pid 5356] <... futex resumed>) = 0 [pid 5355] ioctl(4, LOOP_SET_FD, 3 [pid 5358] rt_sigprocmask(SIG_SETMASK, [], [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5354] <... futex resumed>) = 0 [pid 5358] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5358] memfd_create("syzkaller", 0 [pid 5351] <... mount resumed>) = 0 [pid 5358] <... memfd_create resumed>) = 3 [pid 5358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5358] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5357] <... write resumed>) = 524288 [pid 5355] <... ioctl resumed>) = 0 [pid 5354] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5351] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5051] <... ioctl resumed>) = 0 [pid 5358] <... write resumed>) = 524288 [pid 5355] close(3) = 0 [pid 5355] close(4 [pid 5354] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5355] <... close resumed>) = 0 [pid 5354] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5351] <... openat resumed>) = 3 [pid 5355] mkdir("./file2", 0777) = 0 [pid 5354] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5351] chdir("./file2" [pid 5354] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5351] <... chdir resumed>) = 0 [pid 5051] close(3 [pid 5355] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5354] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5351] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] <... close resumed>) = 0 [pid 5358] munmap(0x7f6dade00000, 138412032 [pid 5354] <... mprotect resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5358] <... munmap resumed>) = 0 [pid 5357] munmap(0x7f6dade00000, 138412032 [pid 5354] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5351] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5354] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5351] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5360 attached ./strace-static-x86_64: Process 5359 attached [pid 5358] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5357] <... munmap resumed>) = 0 [pid 5355] <... mount resumed>) = 0 [pid 5351] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5350] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5359] set_robust_list(0x555556b376a0, 24 [pid 5358] <... openat resumed>) = 4 [pid 5355] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5354] <... clone3 resumed> => {parent_tid=[5360]}, 88) = 5360 [ 92.438518][ T5351] loop5: detected capacity change from 0 to 1024 [ 92.475254][ T5355] loop4: detected capacity change from 0 to 1024 [pid 5351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5350] <... futex resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5359 [pid 5359] <... set_robust_list resumed>) = 0 [pid 5358] ioctl(4, LOOP_SET_FD, 3 [pid 5355] <... openat resumed>) = 3 [pid 5360] <... rseq resumed>) = 0 [pid 5359] chdir("./24" [pid 5358] <... ioctl resumed>) = 0 [pid 5357] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5355] chdir("./file2" [pid 5354] rt_sigprocmask(SIG_SETMASK, [], [pid 5351] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] set_robust_list(0x7f6db63839a0, 24 [pid 5359] <... chdir resumed>) = 0 [pid 5358] close(3 [pid 5357] <... openat resumed>) = 4 [pid 5355] <... chdir resumed>) = 0 [pid 5354] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5360] <... set_robust_list resumed>) = 0 [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5358] <... close resumed>) = 0 [pid 5357] ioctl(4, LOOP_SET_FD, 3 [pid 5355] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5354] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5360] rt_sigprocmask(SIG_SETMASK, [], [pid 5359] <... prctl resumed>) = 0 [pid 5358] close(4 [pid 5357] <... ioctl resumed>) = 0 [pid 5355] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5354] <... futex resumed>) = 0 [pid 5351] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5359] setpgid(0, 0 [pid 5358] <... close resumed>) = 0 [pid 5355] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5360] memfd_create("syzkaller", 0 [pid 5359] <... setpgid resumed>) = 0 [pid 5358] mkdir("./file2", 0777 [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5351] memfd_create("syzkaller", 0 [pid 5350] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... memfd_create resumed>) = 3 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5357] close(3 [pid 5355] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... memfd_create resumed>) = 4 [pid 5350] <... futex resumed>) = 0 [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5353] <... futex resumed>) = 0 [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5360] <... mmap resumed>) = 0x7f6dade00000 [pid 5357] <... close resumed>) = 0 [pid 5355] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5359] <... openat resumed>) = 3 [pid 5358] <... mkdir resumed>) = 0 [pid 5360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5357] close(4 [pid 5351] <... mmap resumed>) = 0x7f6dade00000 [pid 5359] write(3, "1000", 4 [pid 5358] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5359] <... write resumed>) = 4 [pid 5359] close(3) = 0 [pid 5357] <... close resumed>) = 0 [pid 5359] symlink("/dev/binderfs", "./binderfs" [pid 5357] mkdir("./file2", 0777 [pid 5355] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5359] <... symlink resumed>) = 0 [pid 5355] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5359] <... futex resumed>) = 0 [pid 5358] <... mount resumed>) = 0 [pid 5357] <... mkdir resumed>) = 0 [pid 5355] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5358] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5353] <... futex resumed>) = 0 [pid 5351] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5360] <... write resumed>) = 524288 [pid 5358] <... openat resumed>) = 3 [pid 5357] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5359] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5359] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5358] chdir("./file2" [pid 5355] memfd_create("syzkaller", 0 [pid 5359] <... mmap resumed>) = 0x7f6db6363000 [pid 5358] <... chdir resumed>) = 0 [pid 5355] <... memfd_create resumed>) = 4 [pid 5359] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [ 92.518478][ T5358] loop2: detected capacity change from 0 to 1024 [ 92.536804][ T5357] loop1: detected capacity change from 0 to 1024 [pid 5358] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5359] <... mprotect resumed>) = 0 [pid 5358] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5359] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5358] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5359] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5358] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5356] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5358] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5356] <... futex resumed>) = 0 [pid 5355] <... mmap resumed>) = 0x7f6dade00000 [pid 5358] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5355] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5351] <... write resumed>) = 524288 ./strace-static-x86_64: Process 5361 attached [pid 5359] <... clone3 resumed> => {parent_tid=[5361]}, 88) = 5361 [pid 5361] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5360] munmap(0x7f6dade00000, 138412032 [pid 5359] rt_sigprocmask(SIG_SETMASK, [], [pid 5358] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5361] <... rseq resumed>) = 0 [pid 5359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5358] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] munmap(0x7f6dade00000, 138412032 [pid 5361] set_robust_list(0x7f6db63839a0, 24 [pid 5359] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... set_robust_list resumed>) = 0 [pid 5359] <... futex resumed>) = 0 [pid 5361] rt_sigprocmask(SIG_SETMASK, [], [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5361] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5358] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5351] <... munmap resumed>) = 0 [pid 5361] memfd_create("syzkaller", 0 [pid 5360] <... munmap resumed>) = 0 [pid 5356] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5361] <... memfd_create resumed>) = 3 [pid 5356] <... futex resumed>) = 0 [pid 5351] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5358] memfd_create("syzkaller", 0 [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5351] close(4 [pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5358] <... memfd_create resumed>) = 4 [pid 5360] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5360] <... openat resumed>) = 4 [pid 5360] ioctl(4, LOOP_SET_FD, 3 [pid 5358] <... mmap resumed>) = 0x7f6dade00000 [pid 5355] <... write resumed>) = 524288 [pid 5360] <... ioctl resumed>) = 0 [pid 5351] <... close resumed>) = 0 [pid 5361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5358] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5361] <... write resumed>) = 524288 [pid 5360] close(3 [pid 5358] <... write resumed>) = 524288 [pid 5357] <... mount resumed>) = 0 [pid 5355] munmap(0x7f6dade00000, 138412032 [pid 5351] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] munmap(0x7f6dade00000, 138412032 [pid 5357] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5355] <... munmap resumed>) = 0 [pid 5361] munmap(0x7f6dade00000, 138412032 [pid 5355] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5361] <... munmap resumed>) = 0 [pid 5358] <... munmap resumed>) = 0 [pid 5357] <... openat resumed>) = 3 [pid 5355] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5358] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5357] chdir("./file2" [pid 5361] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5360] <... close resumed>) = 0 [pid 5358] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5357] <... chdir resumed>) = 0 [pid 5355] close(4 [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5360] close(4 [pid 5358] close(4 [pid 5357] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5351] openat(AT_FDCWD, ".", O_RDONLY [pid 5350] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... close resumed>) = 0 [pid 5351] <... openat resumed>) = 4 [pid 5350] <... futex resumed>) = 0 [pid 5357] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5361] <... openat resumed>) = 4 [pid 5360] mkdir("./file2", 0777 [pid 5358] <... close resumed>) = 0 [pid 5351] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 92.606073][ T5360] loop3: detected capacity change from 0 to 1024 [pid 5361] ioctl(4, LOOP_SET_FD, 3 [pid 5360] <... mkdir resumed>) = 0 [pid 5357] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... futex resumed>) = 0 [pid 5350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5361] <... ioctl resumed>) = 0 [pid 5351] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5360] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5358] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] <... futex resumed>) = 1 [pid 5355] <... close resumed>) = 0 [pid 5352] <... futex resumed>) = 0 [pid 5350] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... futex resumed>) = 1 [pid 5357] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5356] <... futex resumed>) = 0 [pid 5355] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5350] <... futex resumed>) = 0 [pid 5351] openat(AT_FDCWD, ".", O_RDONLY [pid 5358] openat(AT_FDCWD, ".", O_RDONLY [pid 5356] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5352] <... futex resumed>) = 0 [pid 5351] <... openat resumed>) = 5 [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5358] <... openat resumed>) = 4 [pid 5356] <... futex resumed>) = 0 [pid 5355] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5353] <... futex resumed>) = 0 [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] renameat2(5, "./file2", 4, "./file1", 0 [pid 5350] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5350] <... futex resumed>) = 0 [pid 5355] openat(AT_FDCWD, ".", O_RDONLY [pid 5351] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5358] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5355] <... openat resumed>) = 4 [pid 5351] <... futex resumed>) = 0 [pid 5351] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5350] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5355] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5350] <... futex resumed>) = 0 [pid 5357] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5356] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5352] <... futex resumed>) = 0 [pid 5351] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5350] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5358] openat(AT_FDCWD, ".", O_RDONLY [pid 5357] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5356] <... futex resumed>) = 0 [pid 5355] openat(AT_FDCWD, ".", O_RDONLY [pid 5353] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... openat resumed>) = 5 [pid 5357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5355] <... openat resumed>) = 5 [pid 5353] <... futex resumed>) = 0 [pid 5351] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] memfd_create("syzkaller", 0 [pid 5355] <... futex resumed>) = 0 [pid 5352] <... futex resumed>) = 0 [pid 5358] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5358] <... futex resumed>) = 1 [pid 5357] <... memfd_create resumed>) = 4 [pid 5356] <... futex resumed>) = 0 [pid 5358] renameat2(5, "./file2", 4, "./file1", 0 [pid 5357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5356] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5358] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5357] <... mmap resumed>) = 0x7f6dade00000 [pid 5356] <... futex resumed>) = 0 [pid 5353] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5351] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5350] exit_group(0 [pid 5358] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5353] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... futex resumed>) = 0 [pid 5356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5355] <... futex resumed>) = 0 [pid 5353] <... futex resumed>) = 1 [pid 5351] <... futex resumed>) = ? [pid 5350] <... exit_group resumed>) = ? [pid 5358] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5357] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5356] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] renameat2(5, "./file2", 4, "./file1", 0 [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] +++ exited with 0 +++ [pid 5350] +++ exited with 0 +++ [pid 5361] close(3 [pid 5358] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5356] <... futex resumed>) = 0 [pid 5355] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5361] <... close resumed>) = 0 [pid 5358] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5355] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5361] close(4 [pid 5356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5358] <... futex resumed>) = 0 [pid 5361] <... close resumed>) = 0 [pid 5356] exit_group(0 [pid 5355] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... restart_syscall resumed>) = 0 [pid 5358] read(-1236994560, [pid 5361] mkdir("./file2", 0777 [pid 5358] +++ exited with 0 +++ [pid 5356] <... exit_group resumed>) = ? [pid 5355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5353] <... futex resumed>) = 0 [pid 5361] <... mkdir resumed>) = 0 [pid 5360] <... mount resumed>) = 0 [pid 5360] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5360] chdir("./file2") = 0 [pid 5360] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5361] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5360] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] +++ exited with 0 +++ [pid 5355] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5353] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5355] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5355] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 92.646788][ T5361] loop0: detected capacity change from 0 to 1024 [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] exit_group(0 [pid 5056] <... openat resumed>) = 3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... exit_group resumed>) = ? [pid 5053] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5360] <... futex resumed>) = 1 [pid 5053] unlink("./24/binderfs") = 0 [pid 5053] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5355] +++ exited with 0 +++ [pid 5353] +++ exited with 0 +++ [pid 5056] newfstatat(3, "", [pid 5354] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5354] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5354] <... futex resumed>) = 1 [pid 5056] getdents64(3, [pid 5360] <... futex resumed>) = 0 [pid 5360] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5056] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] newfstatat(3, "", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5056] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] unlink("./23/binderfs" [pid 5055] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5360] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5360] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] unlink("./25/binderfs" [pid 5360] <... futex resumed>) = 1 [pid 5357] <... write resumed>) = 524288 [pid 5354] <... futex resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5360] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5354] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5354] <... futex resumed>) = 0 [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5360] memfd_create("syzkaller", 0) = 4 [pid 5053] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./24/file2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5357] munmap(0x7f6dade00000, 138412032 [pid 5360] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] openat(AT_FDCWD, "./24/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5357] <... munmap resumed>) = 0 [pid 5361] <... mount resumed>) = 0 [pid 5357] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5056] <... umount2 resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5357] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] newfstatat(4, "", [pid 5357] close(4 [pid 5056] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5361] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5053] getdents64(4, [pid 5361] <... openat resumed>) = 3 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4) = 0 [pid 5361] chdir("./file2" [pid 5053] rmdir("./24/file2" [pid 5361] <... chdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... rmdir resumed>) = 0 [pid 5361] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5056] newfstatat(AT_FDCWD, "./23/file2", [pid 5361] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5360] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5361] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... write resumed>) = 524288 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(3, [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5359] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5361] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5357] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./23/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5361] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5056] <... openat resumed>) = 4 [pid 5055] newfstatat(AT_FDCWD, "./25/file2", [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] close(3 [pid 5056] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5361] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./24" [pid 5357] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(4 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... rmdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./25/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5056] rmdir("./23/file2" [pid 5055] <... openat resumed>) = 4 [pid 5361] memfd_create("syzkaller", 0 [pid 5359] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(4, "", [pid 5053] mkdir("./25", 0777 [pid 5361] <... memfd_create resumed>) = 4 [pid 5359] <... futex resumed>) = 0 [pid 5357] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5357] openat(AT_FDCWD, ".", O_RDONLY [pid 5352] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(3, [pid 5055] getdents64(4, [pid 5361] <... mmap resumed>) = 0x7f6dade00000 [pid 5360] munmap(0x7f6dade00000, 138412032 [pid 5357] <... openat resumed>) = 4 [pid 5352] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5361] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5360] <... munmap resumed>) = 0 [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(3 [pid 5053] <... openat resumed>) = 3 [pid 5055] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5055] close(4 [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./23" [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./25/file2" [pid 5357] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5357] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5360] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5357] openat(AT_FDCWD, ".", O_RDONLY [pid 5352] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5357] <... openat resumed>) = 5 [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5357] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5357] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5357] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5352] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] close(4 [pid 5357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5360] <... close resumed>) = 0 [pid 5357] renameat2(5, "./file2", 4, "./file1", 0 [pid 5055] close(3 [pid 5357] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5357] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5361] <... write resumed>) = 524288 [pid 5360] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5352] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./25" [pid 5357] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5361] munmap(0x7f6dade00000, 138412032 [pid 5360] <... futex resumed>) = 1 [pid 5357] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5352] <... futex resumed>) = 0 [pid 5357] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] <... futex resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5361] <... munmap resumed>) = 0 [pid 5360] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5357] <... futex resumed>) = 0 [pid 5354] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] mkdir("./26", 0777 [pid 5361] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5357] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5354] <... futex resumed>) = 0 [pid 5352] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5361] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5352] exit_group(0 [pid 5361] close(4 [pid 5360] openat(AT_FDCWD, ".", O_RDONLY [pid 5357] <... futex resumed>) = ? [pid 5352] <... exit_group resumed>) = ? [pid 5055] <... mkdir resumed>) = 0 [pid 5357] +++ exited with 0 +++ [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5361] <... close resumed>) = 0 [pid 5361] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... openat resumed>) = 4 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5352] +++ exited with 0 +++ [pid 5361] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5360] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5360] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5354] <... futex resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5361] openat(AT_FDCWD, ".", O_RDONLY [pid 5360] openat(AT_FDCWD, ".", O_RDONLY [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5354] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5361] <... openat resumed>) = 4 [pid 5360] <... openat resumed>) = 5 [pid 5354] <... futex resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5361] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... futex resumed>) = 1 [pid 5360] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5354] <... futex resumed>) = 0 [pid 5361] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5360] renameat2(5, "./file2", 4, "./file1", 0 [pid 5354] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5360] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5359] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] <... futex resumed>) = 0 [pid 5361] openat(AT_FDCWD, ".", O_RDONLY [pid 5052] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] <... futex resumed>) = 0 [pid 5354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5361] <... openat resumed>) = 5 [pid 5360] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] <... futex resumed>) = 0 [pid 5354] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5354] <... futex resumed>) = 0 [pid 5361] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5354] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... rmdir resumed>) = 0 [pid 5361] <... futex resumed>) = 0 [pid 5056] mkdir("./24", 0777 [pid 5361] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5360] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... openat resumed>) = 3 [pid 5360] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... mkdir resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5361] <... futex resumed>) = 0 [pid 5360] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 1 [pid 5354] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5361] renameat2(5, "./file2", 4, "./file1", 0 [pid 5360] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5354] exit_group(0 [pid 5052] getdents64(3, [pid 5056] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5360] <... futex resumed>) = ? [pid 5354] <... exit_group resumed>) = ? [pid 5053] <... ioctl resumed>) = 0 [pid 5361] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5360] +++ exited with 0 +++ [pid 5354] +++ exited with 0 +++ [pid 5053] close(3 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5354, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=3 /* 0.03 s */} --- [pid 5052] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] <... close resumed>) = 0 [pid 5054] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5361] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5361] <... futex resumed>) = 1 [pid 5054] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5361] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5054] newfstatat(3, "", [pid 5359] <... futex resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5359] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5362 attached [pid 5361] <... futex resumed>) = 0 [pid 5359] <... futex resumed>) = 1 [pid 5054] getdents64(3, [pid 5052] unlink("./24/binderfs" [pid 5362] set_robust_list(0x555556b376a0, 24 [pid 5361] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5359] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5361] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5361] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5361] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... unlink resumed>) = 0 [pid 5362] <... set_robust_list resumed>) = 0 [pid 5359] exit_group(0 [pid 5054] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] chdir("./25" [pid 5361] <... futex resumed>) = ? [pid 5359] <... exit_group resumed>) = ? [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5361] +++ exited with 0 +++ [pid 5054] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5359] +++ exited with 0 +++ [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] <... chdir resumed>) = 0 [pid 5054] unlink("./23/binderfs" [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5362 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5054] <... unlink resumed>) = 0 [pid 5362] <... prctl resumed>) = 0 [pid 5362] setpgid(0, 0 [pid 5054] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] <... setpgid resumed>) = 0 [pid 5051] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... umount2 resumed>) = 0 [pid 5362] <... openat resumed>) = 3 [pid 5052] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5051] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, 0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(AT_FDCWD, "./24/file2", [pid 5362] write(3, "1000", 4 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5052] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] openat(AT_FDCWD, "./24/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5362] <... write resumed>) = 4 [pid 5052] <... openat resumed>) = 4 [pid 5051] unlink("./24/binderfs" [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5052] getdents64(4, [pid 5362] close(3 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, [pid 5051] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5362] <... close resumed>) = 0 [pid 5052] close(4 [pid 5362] symlink("/dev/binderfs", "./binderfs" [pid 5054] <... umount2 resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5362] <... symlink resumed>) = 0 [pid 5052] rmdir("./24/file2" [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... rmdir resumed>) = 0 [pid 5362] <... futex resumed>) = 0 [pid 5052] getdents64(3, [pid 5362] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5052] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5362] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5052] close(3 [pid 5362] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5052] <... close resumed>) = 0 [pid 5054] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] rmdir("./24" [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5362] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./23/file2", [pid 5052] mkdir("./25", 0777 [pid 5362] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5362] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5362] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] umount2("./23/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... mkdir resumed>) = 0 [pid 5362] <... clone3 resumed> => {parent_tid=[5363]}, 88) = 5363 [pid 5362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5362] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5363 attached [pid 5363] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5363] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5363] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5054] openat(AT_FDCWD, "./23/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... openat resumed>) = 3 [pid 5363] memfd_create("syzkaller", 0) = 3 [pid 5055] <... ioctl resumed>) = 0 [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5055] close(3) = 0 [pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... ioctl resumed>) = 0 [pid 5054] <... openat resumed>) = 4 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5364 attached [pid 5054] getdents64(4, [pid 5051] <... umount2 resumed>) = 0 [pid 5364] set_robust_list(0x555556b376a0, 24 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5364] <... set_robust_list resumed>) = 0 [pid 5054] close(4 [pid 5051] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5364] chdir("./26" [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5364 [pid 5054] <... close resumed>) = 0 [pid 5364] <... chdir resumed>) = 0 [pid 5363] <... write resumed>) = 524288 [pid 5056] close(3 [pid 5054] rmdir("./23/file2" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5364] setpgid(0, 0) = 0 [pid 5364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] <... close resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./24/file2", [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] getdents64(3, [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5051] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5364] <... openat resumed>) = 3 [pid 5364] write(3, "1000", 4) = 4 [pid 5364] close(3) = 0 [pid 5364] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5054] close(3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./24/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] <... close resumed>) = 0 ./strace-static-x86_64: Process 5365 attached [pid 5054] rmdir("./23" [pid 5051] <... openat resumed>) = 4 [pid 5363] munmap(0x7f6dade00000, 138412032) = 0 [pid 5051] newfstatat(4, "", [pid 5363] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5054] <... rmdir resumed>) = 0 [pid 5365] set_robust_list(0x555556b376a0, 24 [pid 5363] <... openat resumed>) = 4 [pid 5054] mkdir("./24", 0777 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5365] <... set_robust_list resumed>) = 0 [pid 5363] ioctl(4, LOOP_SET_FD, 3 [pid 5365] chdir("./24" [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5365 [pid 5054] <... mkdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5364] <... futex resumed>) = 0 [pid 5364] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, NULL, 8) = 0 [pid 5364] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5365] <... chdir resumed>) = 0 [pid 5364] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] getdents64(4, [pid 5364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5364] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5054] <... openat resumed>) = 3 [pid 5365] <... prctl resumed>) = 0 [pid 5051] close(4 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5365] setpgid(0, 0 [pid 5364] <... mprotect resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5365] <... setpgid resumed>) = 0 [pid 5364] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5051] rmdir("./24/file2" [pid 5364] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5364] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5051] <... rmdir resumed>) = 0 [pid 5051] getdents64(3, ./strace-static-x86_64: Process 5366 attached [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5363] <... ioctl resumed>) = 0 [pid 5366] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5364] <... clone3 resumed> => {parent_tid=[5366]}, 88) = 5366 [pid 5366] <... rseq resumed>) = 0 [pid 5364] rt_sigprocmask(SIG_SETMASK, [], [pid 5366] set_robust_list(0x7f6db63839a0, 24 [pid 5364] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5363] close(3 [pid 5052] <... ioctl resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5366] <... set_robust_list resumed>) = 0 [pid 5364] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] rt_sigprocmask(SIG_SETMASK, [], [pid 5364] <... futex resumed>) = 0 [pid 5363] <... close resumed>) = 0 [pid 5051] close(3 [pid 5366] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5363] close(4 [pid 5366] memfd_create("syzkaller", 0 [pid 5363] <... close resumed>) = 0 [pid 5052] close(3 [pid 5051] <... close resumed>) = 0 [pid 5366] <... memfd_create resumed>) = 3 [pid 5365] <... openat resumed>) = 3 [pid 5363] mkdir("./file2", 0777 [pid 5366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5365] write(3, "1000", 4 [pid 5363] <... mkdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] rmdir("./24" [pid 5365] <... write resumed>) = 4 [pid 5363] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5367 attached [pid 5365] close(3 [pid 5051] <... rmdir resumed>) = 0 [pid 5367] set_robust_list(0x555556b376a0, 24 [pid 5365] <... close resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5367 [pid 5365] symlink("/dev/binderfs", "./binderfs" [pid 5367] <... set_robust_list resumed>) = 0 [pid 5366] <... write resumed>) = 524288 [pid 5365] <... symlink resumed>) = 0 [pid 5363] <... mount resumed>) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5051] mkdir("./25", 0777 [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5367] chdir("./25" [pid 5365] <... futex resumed>) = 0 [pid 5363] chdir("./file2" [pid 5365] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5363] <... chdir resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5367] <... chdir resumed>) = 0 [pid 5365] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5363] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5365] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5363] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] close(3 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5367] <... prctl resumed>) = 0 [pid 5365] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 92.902243][ T5363] loop2: detected capacity change from 0 to 1024 [pid 5366] munmap(0x7f6dade00000, 138412032 [pid 5367] setpgid(0, 0 [pid 5365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5366] <... munmap resumed>) = 0 [pid 5365] <... mmap resumed>) = 0x7f6db6363000 [pid 5367] <... setpgid resumed>) = 0 [pid 5365] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5054] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5363] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5365] <... mprotect resumed>) = 0 [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5366] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5362] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] <... openat resumed>) = 4 [pid 5362] <... futex resumed>) = 0 [pid 5366] ioctl(4, LOOP_SET_FD, 3 [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5368 attached [pid 5367] <... openat resumed>) = 3 [pid 5366] <... ioctl resumed>) = 0 [pid 5365] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5363] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5051] <... ioctl resumed>) = 0 [pid 5368] set_robust_list(0x555556b376a0, 24 [pid 5366] close(3 [pid 5368] <... set_robust_list resumed>) = 0 [pid 5366] <... close resumed>) = 0 [pid 5368] chdir("./24" [pid 5367] write(3, "1000", 4 [pid 5366] close(4 [pid 5368] <... chdir resumed>) = 0 [pid 5366] <... close resumed>) = 0 [pid 5363] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5366] mkdir("./file2", 0777 [pid 5368] <... prctl resumed>) = 0 [pid 5366] <... mkdir resumed>) = 0 [pid 5368] setpgid(0, 0 [pid 5367] <... write resumed>) = 4 [pid 5366] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5365] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5363] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5368 [pid 5051] close(3 [pid 5368] <... setpgid resumed>) = 0 [pid 5367] close(3 [pid 5365] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5051] <... close resumed>) = 0 ./strace-static-x86_64: Process 5369 attached [pid 5368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5367] <... close resumed>) = 0 [pid 5363] memfd_create("syzkaller", 0 [pid 5362] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5369] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5368] <... openat resumed>) = 3 [pid 5367] symlink("/dev/binderfs", "./binderfs" [pid 5365] <... clone3 resumed> => {parent_tid=[5369]}, 88) = 5369 [pid 5363] <... memfd_create resumed>) = 4 [pid 5362] <... futex resumed>) = 0 [pid 5369] <... rseq resumed>) = 0 [pid 5368] write(3, "1000", 4 [pid 5367] <... symlink resumed>) = 0 [pid 5366] <... mount resumed>) = 0 [pid 5365] rt_sigprocmask(SIG_SETMASK, [], [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5369] set_robust_list(0x7f6db63839a0, 24 [pid 5368] <... write resumed>) = 4 [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5365] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5363] <... mmap resumed>) = 0x7f6dade00000 [pid 5369] <... set_robust_list resumed>) = 0 [pid 5368] close(3 [pid 5367] <... futex resumed>) = 0 [pid 5366] <... openat resumed>) = 3 [pid 5365] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5370 attached [pid 5368] <... close resumed>) = 0 [pid 5370] set_robust_list(0x555556b376a0, 24 [pid 5368] symlink("/dev/binderfs", "./binderfs" [pid 5366] chdir("./file2" [pid 5370] <... set_robust_list resumed>) = 0 [pid 5368] <... symlink resumed>) = 0 [pid 5366] <... chdir resumed>) = 0 [pid 5369] rt_sigprocmask(SIG_SETMASK, [], [pid 5365] <... futex resumed>) = 0 [pid 5367] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5370] chdir("./25" [pid 5369] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5367] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5363] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5370 [pid 5370] <... chdir resumed>) = 0 [pid 5369] memfd_create("syzkaller", 0 [pid 5366] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5366] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5370] <... prctl resumed>) = 0 [pid 5366] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 92.968903][ T5366] loop4: detected capacity change from 0 to 1024 [pid 5370] setpgid(0, 0 [pid 5369] <... memfd_create resumed>) = 3 [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5366] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5364] <... futex resumed>) = 0 [pid 5370] <... setpgid resumed>) = 0 [pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5368] <... futex resumed>) = 0 [pid 5367] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5364] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5368] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5366] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5364] <... futex resumed>) = 0 [pid 5369] <... mmap resumed>) = 0x7f6dade00000 [pid 5370] <... openat resumed>) = 3 [pid 5368] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5367] <... mmap resumed>) = 0x7f6db6363000 [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5363] <... write resumed>) = 524288 [pid 5370] write(3, "1000", 4 [pid 5369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5368] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5367] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5366] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5363] munmap(0x7f6dade00000, 138412032 [pid 5367] <... mprotect resumed>) = 0 [pid 5368] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5367] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5367] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5363] <... munmap resumed>) = 0 [pid 5367] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5363] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5370] <... write resumed>) = 4 [pid 5368] <... mmap resumed>) = 0x7f6db6363000 [pid 5366] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5371 attached [pid 5363] close(4 [pid 5370] close(3 [pid 5368] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5366] <... futex resumed>) = 1 [pid 5364] <... futex resumed>) = 0 [pid 5370] <... close resumed>) = 0 [pid 5368] <... mprotect resumed>) = 0 [pid 5366] memfd_create("syzkaller", 0 [pid 5364] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] symlink("/dev/binderfs", "./binderfs" [pid 5368] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5366] <... memfd_create resumed>) = 4 [pid 5364] <... futex resumed>) = 0 [pid 5371] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5370] <... symlink resumed>) = 0 [pid 5368] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5363] <... close resumed>) = 0 [pid 5371] <... rseq resumed>) = 0 [pid 5368] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5367] <... clone3 resumed> => {parent_tid=[5371]}, 88) = 5371 [pid 5366] <... mmap resumed>) = 0x7f6dade00000 [pid 5371] set_robust_list(0x7f6db63839a0, 24 [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] rt_sigprocmask(SIG_SETMASK, [], [pid 5366] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5371] <... set_robust_list resumed>) = 0 [pid 5367] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5372 attached [pid 5370] <... futex resumed>) = 0 [pid 5368] <... clone3 resumed> => {parent_tid=[5372]}, 88) = 5372 [pid 5372] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5370] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5368] rt_sigprocmask(SIG_SETMASK, [], [pid 5367] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] rt_sigprocmask(SIG_SETMASK, [], [pid 5367] <... futex resumed>) = 0 [pid 5371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5372] <... rseq resumed>) = 0 [pid 5371] memfd_create("syzkaller", 0 [pid 5370] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5368] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5372] set_robust_list(0x7f6db63839a0, 24 [pid 5370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5368] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... set_robust_list resumed>) = 0 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5368] <... futex resumed>) = 0 [pid 5372] rt_sigprocmask(SIG_SETMASK, [], [pid 5370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5369] <... write resumed>) = 524288 [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5372] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5371] <... memfd_create resumed>) = 3 [pid 5370] <... mmap resumed>) = 0x7f6db6363000 [pid 5369] munmap(0x7f6dade00000, 138412032 [pid 5363] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] memfd_create("syzkaller", 0 [pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5370] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5372] <... memfd_create resumed>) = 3 [pid 5371] <... mmap resumed>) = 0x7f6dade00000 [pid 5370] <... mprotect resumed>) = 0 [pid 5369] <... munmap resumed>) = 0 [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5369] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5366] <... write resumed>) = 524288 [pid 5363] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5362] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... mmap resumed>) = 0x7f6dade00000 [pid 5370] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5369] <... openat resumed>) = 4 [pid 5366] munmap(0x7f6dade00000, 138412032 [pid 5363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5362] <... futex resumed>) = 0 [pid 5371] <... write resumed>) = 524288 [pid 5369] ioctl(4, LOOP_SET_FD, 3 [pid 5363] openat(AT_FDCWD, ".", O_RDONLY [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5372] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5370] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5366] <... munmap resumed>) = 0 [pid 5370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5373 attached [pid 5373] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5366] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5373] set_robust_list(0x7f6db63839a0, 24 [pid 5372] <... write resumed>) = 524288 [pid 5371] munmap(0x7f6dade00000, 138412032 [pid 5370] <... clone3 resumed> => {parent_tid=[5373]}, 88) = 5373 [pid 5369] <... ioctl resumed>) = 0 [pid 5366] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5363] <... openat resumed>) = 4 [pid 5373] <... set_robust_list resumed>) = 0 [pid 5363] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5362] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] rt_sigprocmask(SIG_SETMASK, [], [pid 5371] <... munmap resumed>) = 0 [pid 5362] <... futex resumed>) = 0 [pid 5369] close(3 [pid 5363] openat(AT_FDCWD, ".", O_RDONLY [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5371] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5369] <... close resumed>) = 0 [pid 5373] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5363] <... openat resumed>) = 5 [pid 5373] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] rt_sigprocmask(SIG_SETMASK, [], [pid 5371] <... openat resumed>) = 4 [pid 5369] close(4 [pid 5371] ioctl(4, LOOP_SET_FD, 3 [pid 5363] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... close resumed>) = 0 [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5366] close(4 [pid 5362] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] renameat2(5, "./file2", 4, "./file1", 0 [pid 5369] mkdir("./file2", 0777 [pid 5362] <... futex resumed>) = 0 [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5363] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5370] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] <... futex resumed>) = 0 [pid 5370] <... futex resumed>) = 1 [pid 5373] memfd_create("syzkaller", 0 [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5373] <... memfd_create resumed>) = 3 [pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5372] munmap(0x7f6dade00000, 138412032) = 0 [pid 5373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5371] <... ioctl resumed>) = 0 [pid 5372] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5369] <... mkdir resumed>) = 0 [pid 5366] <... close resumed>) = 0 [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5369] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5363] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5362] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... openat resumed>) = 4 [pid 5371] close(3 [pid 5366] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5362] <... futex resumed>) = 0 [pid 5373] <... write resumed>) = 524288 [pid 5372] ioctl(4, LOOP_SET_FD, 3 [pid 5371] <... close resumed>) = 0 [pid 5366] <... futex resumed>) = 1 [pid 5364] <... futex resumed>) = 0 [pid 5363] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5362] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5364] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5366] openat(AT_FDCWD, ".", O_RDONLY [pid 5364] <... futex resumed>) = 0 [pid 5363] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] close(4 [pid 5366] <... openat resumed>) = 4 [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5373] munmap(0x7f6dade00000, 138412032 [pid 5363] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5362] exit_group(0) = ? [pid 5373] <... munmap resumed>) = 0 [pid 5363] <... futex resumed>) = ? [pid 5373] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5371] <... close resumed>) = 0 [pid 5369] <... mount resumed>) = 0 [pid 5373] <... openat resumed>) = 4 [pid 5371] mkdir("./file2", 0777 [pid 5369] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [ 93.074951][ T5369] loop5: detected capacity change from 0 to 1024 [ 93.087456][ T5371] loop1: detected capacity change from 0 to 1024 [ 93.114086][ T5372] loop3: detected capacity change from 0 to 1024 [pid 5366] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] ioctl(4, LOOP_SET_FD, 3 [pid 5371] <... mkdir resumed>) = 0 [pid 5369] <... openat resumed>) = 3 [pid 5366] <... futex resumed>) = 1 [pid 5364] <... futex resumed>) = 0 [pid 5373] <... ioctl resumed>) = 0 [pid 5369] chdir("./file2" [pid 5366] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5364] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] +++ exited with 0 +++ [pid 5362] +++ exited with 0 +++ [pid 5369] <... chdir resumed>) = 0 [pid 5366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5364] <... futex resumed>) = 0 [pid 5371] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5369] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5366] openat(AT_FDCWD, ".", O_RDONLY [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5366] <... openat resumed>) = 5 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5362, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5369] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... futex resumed>) = 1 [pid 5366] <... futex resumed>) = 1 [pid 5364] <... futex resumed>) = 0 [pid 5369] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5366] renameat2(5, "./file2", 4, "./file1", 0 [pid 5364] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5364] <... futex resumed>) = 0 [pid 5366] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5366] <... futex resumed>) = 0 [pid 5364] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5366] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5364] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5364] <... futex resumed>) = 0 [pid 5366] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5366] <... futex resumed>) = 0 [pid 5364] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5366] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5364] exit_group(0 [pid 5366] <... futex resumed>) = ? [pid 5364] <... exit_group resumed>) = ? [pid 5366] +++ exited with 0 +++ [pid 5364] +++ exited with 0 +++ [pid 5373] close(3) = 0 [pid 5373] close(4 [pid 5365] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5364, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5373] <... close resumed>) = 0 [pid 5373] mkdir("./file2", 0777 [pid 5365] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... futex resumed>) = 0 [pid 5365] <... futex resumed>) = 1 [pid 5053] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5369] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5373] <... mkdir resumed>) = 0 [pid 5372] <... ioctl resumed>) = 0 [pid 5371] <... mount resumed>) = 0 [pid 5369] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] close(3 [pid 5371] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5053] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5372] <... close resumed>) = 0 [pid 5372] close(4) = 0 [pid 5371] <... openat resumed>) = 3 [pid 5055] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5372] mkdir("./file2", 0777 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] chdir("./file2" [pid 5053] newfstatat(3, "", [pid 5369] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... mkdir resumed>) = 0 [pid 5369] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5365] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5369] memfd_create("syzkaller", 0 [pid 5055] <... openat resumed>) = 3 [pid 5372] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5371] <... chdir resumed>) = 0 [pid 5365] <... futex resumed>) = 0 [pid 5053] getdents64(3, [pid 5055] newfstatat(3, "", [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5371] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5369] <... memfd_create resumed>) = 4 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5371] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5369] <... mmap resumed>) = 0x7f6dade00000 [pid 5055] getdents64(3, [pid 5053] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] <... mount resumed>) = 0 [pid 5371] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] <... futex resumed>) = 1 [pid 5367] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5372] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5373] <... mount resumed>) = 0 [pid 5371] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5367] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] <... openat resumed>) = 3 [pid 5371] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5367] <... futex resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5373] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5372] chdir("./file2" [pid 5371] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] unlink("./25/binderfs" [pid 5373] <... openat resumed>) = 3 [pid 5373] chdir("./file2") = 0 [pid 5055] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5053] <... unlink resumed>) = 0 [pid 5373] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5373] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5372] <... chdir resumed>) = 0 [pid 5371] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5370] <... futex resumed>) = 0 [pid 5369] <... write resumed>) = 524288 [pid 5055] unlink("./26/binderfs" [pid 5373] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5371] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] <... futex resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [ 93.127337][ T5373] loop0: detected capacity change from 0 to 1024 [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5373] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = -1 ENOSPC (No space left on device) [pid 5373] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5370] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5373] memfd_create("syzkaller", 0) = 4 [pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5373] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5372] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5371] <... futex resumed>) = 1 [pid 5369] munmap(0x7f6dade00000, 138412032 [pid 5367] <... futex resumed>) = 0 [pid 5055] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5367] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5367] <... futex resumed>) = 0 [pid 5372] <... futex resumed>) = 1 [pid 5371] memfd_create("syzkaller", 0 [pid 5053] newfstatat(AT_FDCWD, "./25/file2", [pid 5372] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5371] <... memfd_create resumed>) = 4 [pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5369] <... munmap resumed>) = 0 [pid 5368] <... futex resumed>) = 0 [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5371] <... mmap resumed>) = 0x7f6dade00000 [pid 5369] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5368] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] <... futex resumed>) = 0 [pid 5369] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5368] <... futex resumed>) = 1 [pid 5372] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5369] close(4 [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5371] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5369] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./25/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5372] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] <... write resumed>) = 524288 [pid 5372] <... futex resumed>) = 1 [pid 5368] <... futex resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5372] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5368] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5368] <... futex resumed>) = 0 [pid 5372] memfd_create("syzkaller", 0 [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5372] <... memfd_create resumed>) = 4 [pid 5372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] newfstatat(4, "", [pid 5372] <... mmap resumed>) = 0x7f6dade00000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5373] munmap(0x7f6dade00000, 138412032) = 0 [pid 5373] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5372] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5371] <... write resumed>) = 524288 [pid 5369] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = 0 [pid 5053] getdents64(4, [pid 5373] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5372] <... write resumed>) = 524288 [pid 5373] close(4 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5373] <... close resumed>) = 0 [pid 5053] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] close(4) = 0 [pid 5053] rmdir("./25/file2" [pid 5369] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5369] openat(AT_FDCWD, ".", O_RDONLY [pid 5365] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... openat resumed>) = 4 [pid 5365] <... futex resumed>) = 0 [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(3, [pid 5369] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5369] openat(AT_FDCWD, ".", O_RDONLY [pid 5365] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... openat resumed>) = 5 [pid 5365] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./26/file2", [pid 5053] close(3 [pid 5369] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... close resumed>) = 0 [pid 5372] munmap(0x7f6dade00000, 138412032 [pid 5371] munmap(0x7f6dade00000, 138412032 [pid 5369] <... futex resumed>) = 0 [pid 5365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./25" [pid 5373] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... munmap resumed>) = 0 [pid 5371] <... munmap resumed>) = 0 [pid 5369] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... rmdir resumed>) = 0 [pid 5373] <... futex resumed>) = 1 [pid 5372] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5370] <... futex resumed>) = 0 [pid 5369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5365] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./26/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] mkdir("./26", 0777 [pid 5373] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5372] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5371] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5370] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] renameat2(5, "./file2", 4, "./file1", 0 [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 4 [pid 5053] <... mkdir resumed>) = 0 [pid 5373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5372] close(4 [pid 5371] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5370] <... futex resumed>) = 0 [pid 5369] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] newfstatat(4, "", [pid 5373] openat(AT_FDCWD, ".", O_RDONLY [pid 5371] close(4 [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5373] <... openat resumed>) = 4 [pid 5372] <... close resumed>) = 0 [pid 5369] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5055] getdents64(4, [pid 5365] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] <... openat resumed>) = 3 [pid 5055] getdents64(4, [pid 5369] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5369] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5055] close(4 [pid 5373] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] <... futex resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5373] <... futex resumed>) = 1 [pid 5370] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] openat(AT_FDCWD, ".", O_RDONLY [pid 5370] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./26/file2" [pid 5369] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5369] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] exit_group(0 [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] <... futex resumed>) = ? [pid 5365] <... exit_group resumed>) = ? [pid 5373] <... openat resumed>) = 5 [pid 5372] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] <... close resumed>) = 0 [pid 5055] getdents64(3, [pid 5372] <... futex resumed>) = 1 [pid 5371] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] <... futex resumed>) = 0 [pid 5368] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5373] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] openat(AT_FDCWD, ".", O_RDONLY [pid 5371] <... futex resumed>) = 1 [pid 5367] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5369] +++ exited with 0 +++ [pid 5372] <... openat resumed>) = 4 [pid 5367] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] openat(AT_FDCWD, ".", O_RDONLY [pid 5365] +++ exited with 0 +++ [pid 5055] close(3 [pid 5373] <... futex resumed>) = 1 [pid 5372] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] <... futex resumed>) = 0 [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5373] renameat2(5, "./file2", 4, "./file1", 0 [pid 5372] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5368] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5372] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5373] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5368] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5368] <... futex resumed>) = 0 [pid 5056] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] openat(AT_FDCWD, ".", O_RDONLY [pid 5055] rmdir("./26" [pid 5373] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] <... openat resumed>) = 5 [pid 5056] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5373] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5372] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 3 [pid 5373] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5372] <... futex resumed>) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5368] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] newfstatat(3, "", [pid 5055] <... rmdir resumed>) = 0 [pid 5370] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5372] renameat2(5, "./file2", 4, "./file1", 0 [pid 5373] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5371] <... openat resumed>) = 4 [pid 5371] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] <... futex resumed>) = 0 [pid 5372] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5370] exit_group(0 [pid 5056] getdents64(3, [pid 5055] mkdir("./27", 0777 [pid 5372] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] <... exit_group resumed>) = ? [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5373] +++ exited with 0 +++ [pid 5372] <... futex resumed>) = 1 [pid 5371] <... futex resumed>) = 1 [pid 5368] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = 0 [pid 5056] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... mkdir resumed>) = 0 [pid 5372] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5371] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5368] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5371] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5368] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5372] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] openat(AT_FDCWD, ".", O_RDONLY [pid 5370] +++ exited with 0 +++ [pid 5368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5372] <... futex resumed>) = 0 [pid 5371] <... openat resumed>) = 5 [pid 5368] exit_group(0 [pid 5056] unlink("./24/binderfs" [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5371] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] <... exit_group resumed>) = ? [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5372] +++ exited with 0 +++ [pid 5367] <... futex resumed>) = 0 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5056] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5367] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5371] <... futex resumed>) = 1 [pid 5051] <... openat resumed>) = 3 [pid 5371] renameat2(5, "./file2", 4, "./file1", 0 [pid 5051] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5371] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5368] +++ exited with 0 +++ [pid 5371] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = 0 [pid 5051] getdents64(3, [pid 5371] <... futex resumed>) = 1 [pid 5367] <... futex resumed>) = 0 [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5368, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5371] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5367] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5371] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5367] <... futex resumed>) = 0 [pid 5054] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5371] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5371] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5367] exit_group(0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] <... openat resumed>) = 3 [pid 5371] <... futex resumed>) = ? [pid 5367] <... exit_group resumed>) = ? [pid 5056] newfstatat(AT_FDCWD, "./24/file2", [pid 5054] newfstatat(3, "", [pid 5053] <... ioctl resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5371] +++ exited with 0 +++ [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] getdents64(3, [pid 5056] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5054] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] unlink("./24/binderfs" [pid 5367] +++ exited with 0 +++ [pid 5056] openat(AT_FDCWD, "./24/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] <... unlink resumed>) = 0 [pid 5051] unlink("./25/binderfs" [pid 5056] <... openat resumed>) = 4 [pid 5053] close(3 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] newfstatat(4, "", [pid 5054] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... close resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, [pid 5052] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(4, [pid 5054] <... umount2 resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = 0 [pid 5056] close(4 [pid 5052] newfstatat(3, "", [pid 5051] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5374 attached [pid 5056] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] rmdir("./24/file2" [pid 5052] getdents64(3, [pid 5056] <... rmdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5374 [pid 5052] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] close(3 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] unlink("./25/binderfs" [pid 5056] <... close resumed>) = 0 [pid 5054] newfstatat(AT_FDCWD, "./24/file2", [pid 5052] <... unlink resumed>) = 0 [pid 5056] rmdir("./24" [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5054] umount2("./24/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "./24/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] mkdir("./25", 0777 [pid 5054] <... openat resumed>) = 4 [pid 5056] <... mkdir resumed>) = 0 [pid 5054] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5054] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... umount2 resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5054] getdents64(4, [pid 5052] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5054] close(4 [pid 5052] newfstatat(AT_FDCWD, "./25/file2", [pid 5054] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5054] rmdir("./24/file2" [pid 5052] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... rmdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./25/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, 0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5054] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] rmdir("./25/file2" [pid 5054] close(3) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5054] rmdir("./24") = 0 [pid 5052] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5374] set_robust_list(0x555556b376a0, 24 [pid 5055] <... ioctl resumed>) = 0 [pid 5054] mkdir("./25", 0777 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5374] <... set_robust_list resumed>) = 0 [pid 5055] close(3 [pid 5051] newfstatat(AT_FDCWD, "./25/file2", [pid 5374] chdir("./26" [pid 5052] close(3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... close resumed>) = 0 [pid 5374] <... chdir resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5375 attached [pid 5374] <... prctl resumed>) = 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5375] set_robust_list(0x555556b376a0, 24 [pid 5051] openat(AT_FDCWD, "./25/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5374] setpgid(0, 0 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5375 [pid 5375] <... set_robust_list resumed>) = 0 [pid 5374] <... setpgid resumed>) = 0 [pid 5052] rmdir("./25" [pid 5051] <... openat resumed>) = 4 [pid 5375] chdir("./27" [pid 5374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... rmdir resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5375] <... chdir resumed>) = 0 [pid 5374] <... openat resumed>) = 3 [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5374] write(3, "1000", 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5375] <... prctl resumed>) = 0 [pid 5374] <... write resumed>) = 4 [pid 5054] <... openat resumed>) = 3 [pid 5051] getdents64(4, [pid 5375] setpgid(0, 0 [pid 5374] close(3 [pid 5375] <... setpgid resumed>) = 0 [pid 5374] <... close resumed>) = 0 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5052] mkdir("./26", 0777 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5374] symlink("/dev/binderfs", "./binderfs" [pid 5052] <... mkdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5374] <... symlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] close(4) = 0 [pid 5051] rmdir("./25/file2" [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5375] <... openat resumed>) = 3 [pid 5374] <... futex resumed>) = 0 [pid 5056] <... ioctl resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5375] write(3, "1000", 4 [pid 5051] getdents64(3, [pid 5375] <... write resumed>) = 4 [pid 5375] close(3 [pid 5374] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5375] <... close resumed>) = 0 [pid 5375] symlink("/dev/binderfs", "./binderfs" [pid 5374] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] close(3 [pid 5375] <... symlink resumed>) = 0 [pid 5374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... close resumed>) = 0 [pid 5374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] rmdir("./25" [pid 5056] close(3) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5376 attached [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5375] <... futex resumed>) = 0 [pid 5051] mkdir("./26", 0777 [pid 5376] set_robust_list(0x555556b376a0, 24 [pid 5375] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5051] <... mkdir resumed>) = 0 [pid 5375] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5374] <... mmap resumed>) = 0x7f6db6363000 [pid 5376] <... set_robust_list resumed>) = 0 [pid 5375] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5374] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5376 [pid 5375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5376] chdir("./25" [pid 5375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6db6363000 [pid 5051] <... openat resumed>) = 3 [pid 5376] <... chdir resumed>) = 0 [pid 5375] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5375] <... mprotect resumed>) = 0 [pid 5374] <... mprotect resumed>) = 0 [pid 5376] <... prctl resumed>) = 0 [pid 5375] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5374] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5376] setpgid(0, 0 [pid 5375] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5374] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5054] <... ioctl resumed>) = 0 [pid 5052] <... ioctl resumed>) = 0 [pid 5374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5376] <... setpgid resumed>) = 0 [pid 5375] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] close(3 [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] <... close resumed>) = 0 ./strace-static-x86_64: Process 5377 attached [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5378 attached [pid 5378] set_robust_list(0x555556b376a0, 24) = 0 [pid 5378] chdir("./25") = 0 [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5378] setpgid(0, 0) = 0 [pid 5377] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5375] <... clone3 resumed> => {parent_tid=[5377]}, 88) = 5377 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5378 [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] <... rseq resumed>) = 0 [pid 5376] <... openat resumed>) = 3 [pid 5375] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5379 attached [pid 5378] <... openat resumed>) = 3 [pid 5377] set_robust_list(0x7f6db63839a0, 24 [pid 5376] write(3, "1000", 4 [pid 5375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5374] <... clone3 resumed> => {parent_tid=[5379]}, 88) = 5379 [pid 5051] <... ioctl resumed>) = 0 [pid 5379] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5378] write(3, "1000", 4 [pid 5377] <... set_robust_list resumed>) = 0 [pid 5376] <... write resumed>) = 4 [pid 5375] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] rt_sigprocmask(SIG_SETMASK, [], [pid 5052] close(3 [pid 5377] rt_sigprocmask(SIG_SETMASK, [], [pid 5379] <... rseq resumed>) = 0 [pid 5377] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5375] <... futex resumed>) = 0 [pid 5374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] <... close resumed>) = 0 [pid 5376] close(3 [pid 5379] set_robust_list(0x7f6db63839a0, 24 [pid 5051] close(3 [pid 5379] <... set_robust_list resumed>) = 0 [pid 5376] <... close resumed>) = 0 [pid 5374] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] symlink("/dev/binderfs", "./binderfs" [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] <... close resumed>) = 0 [pid 5379] rt_sigprocmask(SIG_SETMASK, [], [pid 5374] <... futex resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5378] <... write resumed>) = 4 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] <... symlink resumed>) = 0 [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5379] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5378] close(3 [pid 5377] memfd_create("syzkaller", 0 [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5379] memfd_create("syzkaller", 0 [pid 5378] <... close resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556b37690) = 5381 [pid 5378] symlink("/dev/binderfs", "./binderfs" [pid 5377] <... memfd_create resumed>) = 3 [pid 5376] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5380 [pid 5379] <... memfd_create resumed>) = 3 [pid 5378] <... symlink resumed>) = 0 [pid 5377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5376] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... mmap resumed>) = 0x7f6dade00000 [pid 5376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5381 attached ./strace-static-x86_64: Process 5380 attached [pid 5379] <... mmap resumed>) = 0x7f6dade00000 [pid 5378] <... futex resumed>) = 0 [pid 5376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5381] set_robust_list(0x555556b376a0, 24 [pid 5380] set_robust_list(0x555556b376a0, 24 [pid 5378] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5381] <... set_robust_list resumed>) = 0 [pid 5380] <... set_robust_list resumed>) = 0 [pid 5378] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5376] <... mmap resumed>) = 0x7f6db6363000 [pid 5381] chdir("./26" [pid 5380] chdir("./26" [pid 5378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5376] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5381] <... chdir resumed>) = 0 [pid 5380] <... chdir resumed>) = 0 [pid 5379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5378] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5376] <... mprotect resumed>) = 0 [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5376] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5381] <... prctl resumed>) = 0 [pid 5380] <... prctl resumed>) = 0 [pid 5379] <... write resumed>) = 524288 [pid 5378] <... mmap resumed>) = 0x7f6db6363000 [pid 5377] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5376] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5381] setpgid(0, 0 [pid 5380] setpgid(0, 0 [pid 5378] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5380] <... setpgid resumed>) = 0 [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5378] <... mprotect resumed>) = 0 [pid 5376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5380] <... openat resumed>) = 3 [pid 5378] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5380] write(3, "1000", 4 [pid 5378] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5381] <... setpgid resumed>) = 0 [pid 5380] <... write resumed>) = 4 [pid 5378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5376] <... clone3 resumed> => {parent_tid=[5382]}, 88) = 5382 [pid 5376] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5383 attached [pid 5380] close(3 [pid 5376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5383] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5380] <... close resumed>) = 0 [pid 5376] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... rseq resumed>) = 0 [pid 5380] symlink("/dev/binderfs", "./binderfs" [pid 5376] <... futex resumed>) = 0 [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5382 attached [pid 5383] set_robust_list(0x7f6db63839a0, 24 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] <... symlink resumed>) = 0 [pid 5378] <... clone3 resumed> => {parent_tid=[5383]}, 88) = 5383 [pid 5377] <... write resumed>) = 524288 [pid 5378] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5383] <... set_robust_list resumed>) = 0 [pid 5378] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5381] <... openat resumed>) = 3 [pid 5378] <... futex resumed>) = 0 [pid 5383] rt_sigprocmask(SIG_SETMASK, [], [pid 5382] set_robust_list(0x7f6db63839a0, 24 [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5382] <... set_robust_list resumed>) = 0 [pid 5382] rt_sigprocmask(SIG_SETMASK, [], [pid 5379] munmap(0x7f6dade00000, 138412032 [pid 5383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5382] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5379] <... munmap resumed>) = 0 [pid 5383] memfd_create("syzkaller", 0 [pid 5382] memfd_create("syzkaller", 0 [pid 5381] write(3, "1000", 4 [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... memfd_create resumed>) = 3 [pid 5382] <... memfd_create resumed>) = 3 [pid 5381] <... write resumed>) = 4 [pid 5380] <... futex resumed>) = 0 [pid 5382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5381] close(3 [pid 5380] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5382] <... mmap resumed>) = 0x7f6dade00000 [pid 5381] <... close resumed>) = 0 [pid 5380] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5383] <... mmap resumed>) = 0x7f6dade00000 [pid 5382] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5381] symlink("/dev/binderfs", "./binderfs" [pid 5380] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5379] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5377] munmap(0x7f6dade00000, 138412032 [pid 5380] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5379] <... openat resumed>) = 4 [pid 5379] ioctl(4, LOOP_SET_FD, 3 [pid 5381] <... symlink resumed>) = 0 [pid 5380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5380] <... mmap resumed>) = 0x7f6db6363000 [pid 5382] <... write resumed>) = 524288 [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5377] <... munmap resumed>) = 0 [pid 5380] <... mprotect resumed>) = 0 [pid 5381] <... futex resumed>) = 0 [pid 5377] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5381] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5380] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5377] <... openat resumed>) = 4 [pid 5380] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5381] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5383] <... write resumed>) = 524288 [pid 5382] munmap(0x7f6dade00000, 138412032 [pid 5381] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5380] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5379] <... ioctl resumed>) = 0 [pid 5377] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5384 attached [pid 5384] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5384] set_robust_list(0x7f6db63839a0, 24) = 0 [pid 5384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5384] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5383] munmap(0x7f6dade00000, 138412032 [pid 5382] <... munmap resumed>) = 0 [pid 5381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5380] <... clone3 resumed> => {parent_tid=[5384]}, 88) = 5384 [pid 5379] close(3 [pid 5377] <... ioctl resumed>) = 0 [pid 5377] close(3 [pid 5382] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5377] <... close resumed>) = 0 [pid 5380] rt_sigprocmask(SIG_SETMASK, [], [pid 5379] <... close resumed>) = 0 [pid 5377] close(4) = 0 [pid 5377] mkdir("./file2", 0777 [pid 5382] <... openat resumed>) = 4 [pid 5381] <... mmap resumed>) = 0x7f6db6363000 [pid 5380] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5377] <... mkdir resumed>) = 0 [ 93.467853][ T5379] loop2: detected capacity change from 0 to 1024 [ 93.491917][ T5377] loop4: detected capacity change from 0 to 1024 [pid 5383] <... munmap resumed>) = 0 [pid 5382] ioctl(4, LOOP_SET_FD, 3 [pid 5381] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5380] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] close(4 [pid 5377] mount("/dev/loop4", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5383] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5380] <... futex resumed>) = 1 [pid 5379] <... close resumed>) = 0 [pid 5381] <... mprotect resumed>) = 0 [pid 5379] mkdir("./file2", 0777 [pid 5384] <... futex resumed>) = 0 [pid 5383] <... openat resumed>) = 4 [pid 5382] <... ioctl resumed>) = 0 [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5383] ioctl(4, LOOP_SET_FD, 3 [pid 5384] memfd_create("syzkaller", 0) = 3 [pid 5384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5382] close(3 [pid 5379] <... mkdir resumed>) = 0 [pid 5381] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5382] <... close resumed>) = 0 [pid 5381] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5382] close(4 [pid 5381] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5379] mount("/dev/loop2", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, ""./strace-static-x86_64: Process 5385 attached [pid 5382] <... close resumed>) = 0 [pid 5384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5383] <... ioctl resumed>) = 0 [pid 5382] mkdir("./file2", 0777 [pid 5381] <... clone3 resumed> => {parent_tid=[5385]}, 88) = 5385 [pid 5377] <... mount resumed>) = 0 [pid 5385] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053) = 0 [pid 5382] <... mkdir resumed>) = 0 [pid 5381] rt_sigprocmask(SIG_SETMASK, [], [pid 5377] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5381] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5385] set_robust_list(0x7f6db63839a0, 24 [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5379] <... mount resumed>) = 0 [pid 5377] <... openat resumed>) = 3 [pid 5385] <... set_robust_list resumed>) = 0 [pid 5383] close(3 [pid 5379] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5377] chdir("./file2" [pid 5383] <... close resumed>) = 0 [pid 5382] mount("/dev/loop5", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5385] rt_sigprocmask(SIG_SETMASK, [], [pid 5383] close(4 [pid 5379] <... openat resumed>) = 3 [pid 5377] <... chdir resumed>) = 0 [pid 5385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5384] <... write resumed>) = 524288 [pid 5383] <... close resumed>) = 0 [pid 5379] chdir("./file2" [ 93.518518][ T5382] loop5: detected capacity change from 0 to 1024 [ 93.530035][ T5383] loop3: detected capacity change from 0 to 1024 [pid 5377] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5385] memfd_create("syzkaller", 0 [pid 5384] munmap(0x7f6dade00000, 138412032 [pid 5383] mkdir("./file2", 0777 [pid 5382] <... mount resumed>) = 0 [pid 5379] <... chdir resumed>) = 0 [pid 5377] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5382] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5385] <... memfd_create resumed>) = 3 [pid 5382] <... openat resumed>) = 3 [pid 5379] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5377] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5383] <... mkdir resumed>) = 0 [pid 5379] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5377] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5385] <... mmap resumed>) = 0x7f6dade00000 [pid 5379] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5384] <... munmap resumed>) = 0 [pid 5383] mount("/dev/loop3", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5382] chdir("./file2" [pid 5377] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5375] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] <... chdir resumed>) = 0 [pid 5382] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5375] <... futex resumed>) = 0 [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5382] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5379] <... futex resumed>) = 1 [pid 5377] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5374] <... futex resumed>) = 0 [pid 5379] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... openat resumed>) = 4 [pid 5383] <... mount resumed>) = 0 [pid 5382] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5374] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] ioctl(4, LOOP_SET_FD, 3 [pid 5379] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5375] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] memfd_create("syzkaller", 0 [pid 5375] <... futex resumed>) = 0 [pid 5377] <... memfd_create resumed>) = 4 [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5385] <... write resumed>) = 524288 [pid 5377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5384] <... ioctl resumed>) = 0 [pid 5383] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5382] <... futex resumed>) = 1 [pid 5379] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5377] <... mmap resumed>) = 0x7f6dade00000 [pid 5376] <... futex resumed>) = 0 [pid 5374] <... futex resumed>) = 0 [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5376] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5385] munmap(0x7f6dade00000, 138412032 [pid 5384] close(3 [pid 5383] <... openat resumed>) = 3 [pid 5382] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5379] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5379] <... futex resumed>) = 1 [pid 5374] <... futex resumed>) = 0 [pid 5379] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5374] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5374] <... futex resumed>) = 0 [pid 5385] <... munmap resumed>) = 0 [pid 5384] <... close resumed>) = 0 [pid 5383] chdir("./file2" [pid 5382] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5379] memfd_create("syzkaller", 0 [pid 5377] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5385] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5384] close(4 [pid 5383] <... chdir resumed>) = 0 [pid 5382] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] <... memfd_create resumed>) = 4 [pid 5384] <... close resumed>) = 0 [pid 5383] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5382] <... futex resumed>) = 1 [pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5376] <... futex resumed>) = 0 [pid 5383] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5379] <... mmap resumed>) = 0x7f6dade00000 [pid 5376] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] mkdir("./file2", 0777 [pid 5382] memfd_create("syzkaller", 0 [pid 5376] <... futex resumed>) = 0 [pid 5385] <... openat resumed>) = 4 [pid 5384] <... mkdir resumed>) = 0 [pid 5383] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] <... memfd_create resumed>) = 4 [pid 5379] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5385] ioctl(4, LOOP_SET_FD, 3 [pid 5384] mount("/dev/loop0", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5383] <... futex resumed>) = 1 [pid 5382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5377] <... write resumed>) = 524288 [pid 5378] <... futex resumed>) = 0 [pid 5378] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5382] <... mmap resumed>) = 0x7f6dade00000 [pid 5379] <... write resumed>) = 524288 [pid 5377] munmap(0x7f6dade00000, 138412032) = 0 [pid 5383] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5382] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5379] munmap(0x7f6dade00000, 138412032 [pid 5377] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5377] close(4) = 0 [pid 5383] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5379] <... munmap resumed>) = 0 [pid 5379] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5379] close(4 [pid 5383] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] <... write resumed>) = 524288 [pid 5385] <... ioctl resumed>) = 0 [pid 5384] <... mount resumed>) = 0 [pid 5383] <... futex resumed>) = 1 [pid 5382] munmap(0x7f6dade00000, 138412032 [pid 5378] <... futex resumed>) = 0 [pid 5377] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5383] memfd_create("syzkaller", 0 [pid 5382] <... munmap resumed>) = 0 [pid 5379] <... close resumed>) = 0 [pid 5378] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... openat resumed>) = 3 [pid 5383] <... memfd_create resumed>) = 4 [pid 5379] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] <... futex resumed>) = 0 [pid 5385] close(3 [pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5382] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5377] <... futex resumed>) = 1 [pid 5385] <... close resumed>) = 0 [pid 5385] close(4 [pid 5383] <... mmap resumed>) = 0x7f6dade00000 [pid 5377] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5384] chdir("./file2" [pid 5379] <... futex resumed>) = 1 [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5385] <... close resumed>) = 0 [pid 5375] <... futex resumed>) = 0 [pid 5374] <... futex resumed>) = 0 [pid 5384] <... chdir resumed>) = 0 [pid 5379] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] mkdir("./file2", 0777 [pid 5384] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5375] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] <... futex resumed>) = 0 [pid 5375] <... futex resumed>) = 1 [pid 5384] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] openat(AT_FDCWD, ".", O_RDONLY [pid 5377] openat(AT_FDCWD, ".", O_RDONLY [pid 5374] <... futex resumed>) = 0 [pid 5385] <... mkdir resumed>) = 0 [pid 5384] <... futex resumed>) = 1 [pid 5380] <... futex resumed>) = 0 [pid 5379] <... openat resumed>) = 4 [pid 5377] <... openat resumed>) = 4 [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5382] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5380] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5380] <... futex resumed>) = 0 [pid 5379] <... futex resumed>) = 0 [pid 5377] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5384] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5379] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5374] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [ 93.592221][ T5384] loop0: detected capacity change from 0 to 1024 [ 93.623821][ T5385] loop1: detected capacity change from 0 to 1024 [pid 5385] mount("/dev/loop1", "./file2", "hfsplus", MS_NODEV|MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME, "" [pid 5384] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5383] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5382] close(4 [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5375] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] <... futex resumed>) = 0 [pid 5384] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] openat(AT_FDCWD, ".", O_RDONLY [pid 5377] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5375] <... futex resumed>) = 0 [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] <... futex resumed>) = 1 [pid 5379] <... openat resumed>) = 5 [pid 5377] openat(AT_FDCWD, ".", O_RDONLY [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5380] <... futex resumed>) = 0 [pid 5384] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5382] <... close resumed>) = 0 [pid 5380] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5379] <... futex resumed>) = 1 [pid 5377] <... openat resumed>) = 5 [pid 5374] <... futex resumed>) = 0 [pid 5384] memfd_create("syzkaller", 0 [pid 5379] renameat2(5, "./file2", 4, "./file1", 0 [pid 5377] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... memfd_create resumed>) = 4 [pid 5379] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5377] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5374] <... futex resumed>) = 0 [pid 5379] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] renameat2(5, "./file2", 4, "./file1", 0 [pid 5375] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5379] <... futex resumed>) = 0 [pid 5377] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5375] <... futex resumed>) = 0 [pid 5374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5379] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5374] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... mmap resumed>) = 0x7f6dade00000 [pid 5380] <... futex resumed>) = 0 [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] <... futex resumed>) = 0 [pid 5375] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5374] <... futex resumed>) = 0 [pid 5383] <... write resumed>) = 524288 [pid 5382] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5383] munmap(0x7f6dade00000, 138412032 [pid 5382] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5376] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] openat(AT_FDCWD, ".", O_RDONLY [pid 5376] <... futex resumed>) = 0 [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5383] <... munmap resumed>) = 0 [pid 5382] <... openat resumed>) = 4 [pid 5382] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5382] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5383] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5376] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] openat(AT_FDCWD, ".", O_RDONLY [pid 5376] <... futex resumed>) = 0 [pid 5383] close(4 [pid 5382] <... openat resumed>) = 5 [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5382] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5375] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5374] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5377] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5379] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5375] <... futex resumed>) = 0 [pid 5382] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5376] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] renameat2(5, "./file2", 4, "./file1", 0 [pid 5376] <... futex resumed>) = 0 [pid 5384] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5375] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5379] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5379] <... futex resumed>) = 1 [pid 5377] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5374] <... futex resumed>) = 0 [pid 5375] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5382] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] <... futex resumed>) = 0 [pid 5374] exit_group(0 [pid 5382] <... futex resumed>) = 1 [pid 5379] <... futex resumed>) = ? [pid 5377] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] <... futex resumed>) = 0 [pid 5375] exit_group(0 [pid 5374] <... exit_group resumed>) = ? [pid 5382] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5379] +++ exited with 0 +++ [pid 5376] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5376] <... futex resumed>) = 0 [pid 5385] <... mount resumed>) = 0 [pid 5382] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5377] <... futex resumed>) = ? [pid 5376] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5375] <... exit_group resumed>) = ? [pid 5385] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5383] <... close resumed>) = 0 [pid 5382] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5377] +++ exited with 0 +++ [pid 5374] +++ exited with 0 +++ [pid 5385] <... openat resumed>) = 3 [pid 5383] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5374, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5385] chdir("./file2" [pid 5383] <... futex resumed>) = 1 [pid 5382] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] exit_group(0 [pid 5053] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5385] <... chdir resumed>) = 0 [pid 5383] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5382] <... futex resumed>) = ? [pid 5376] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5382] +++ exited with 0 +++ [pid 5378] <... futex resumed>) = 0 [pid 5376] +++ exited with 0 +++ [pid 5375] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5378] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5053] <... openat resumed>) = 3 [pid 5385] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5383] <... futex resumed>) = 0 [pid 5378] <... futex resumed>) = 1 [pid 5053] newfstatat(3, "", [pid 5385] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] openat(AT_FDCWD, ".", O_RDONLY [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5385] <... futex resumed>) = 1 [pid 5383] <... openat resumed>) = 4 [pid 5381] <... futex resumed>) = 0 [pid 5056] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(3, [pid 5385] symlink("./file2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5383] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5383] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5383] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 3 [pid 5053] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(3, "", [pid 5055] newfstatat(3, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(3, [pid 5056] getdents64(3, [pid 5055] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5056] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5055] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./27/binderfs", [pid 5053] unlink("./26/binderfs" [pid 5056] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./27/binderfs" [pid 5053] <... unlink resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5056] unlink("./25/binderfs" [pid 5055] umount2("./27/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... unlink resumed>) = 0 [pid 5053] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5378] <... futex resumed>) = 0 [pid 5384] <... write resumed>) = 524288 [pid 5378] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5378] <... futex resumed>) = 1 [pid 5383] <... futex resumed>) = 0 [pid 5385] <... symlink resumed>) = -1 ENOSPC (No space left on device) [pid 5383] openat(AT_FDCWD, ".", O_RDONLY [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5383] <... openat resumed>) = 5 [pid 5385] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = 0 [pid 5055] umount2("./27/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5385] <... futex resumed>) = 1 [pid 5383] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5384] munmap(0x7f6dade00000, 138412032 [pid 5383] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./27/file2", [pid 5385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5384] <... munmap resumed>) = 0 [pid 5381] <... futex resumed>) = 0 [pid 5378] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5385] memfd_create("syzkaller", 0 [pid 5384] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5383] <... futex resumed>) = 0 [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5378] <... futex resumed>) = 1 [pid 5384] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./27/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5384] close(4 [pid 5383] renameat2(5, "./file2", 4, "./file1", 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] <... memfd_create resumed>) = 4 [pid 5383] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5055] openat(AT_FDCWD, "./27/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] newfstatat(AT_FDCWD, "./26/file2", [pid 5385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5383] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5385] <... mmap resumed>) = 0x7f6dade00000 [pid 5383] <... futex resumed>) = 1 [pid 5378] <... futex resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5053] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5385] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5384] <... close resumed>) = 0 [pid 5383] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5378] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5378] <... futex resumed>) = 0 [pid 5378] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5380] <... futex resumed>) = 0 [pid 5383] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5380] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] openat(AT_FDCWD, "./26/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5383] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5380] <... futex resumed>) = 0 [pid 5055] getdents64(4, [pid 5053] <... openat resumed>) = 4 [pid 5383] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5053] newfstatat(4, "", [pid 5383] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5383] <... futex resumed>) = 1 [pid 5378] <... futex resumed>) = 0 [pid 5378] exit_group(0 [pid 5053] getdents64(4, [pid 5378] <... exit_group resumed>) = ? [pid 5384] openat(AT_FDCWD, ".", O_RDONLY [pid 5056] newfstatat(AT_FDCWD, "./25/file2", [pid 5055] getdents64(4, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5053] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5384] <... openat resumed>) = 4 [pid 5383] +++ exited with 0 +++ [pid 5378] +++ exited with 0 +++ [pid 5056] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(4 [pid 5385] <... write resumed>) = 524288 [pid 5384] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5056] openat(AT_FDCWD, "./25/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] rmdir("./27/file2" [pid 5054] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5378, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5053] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5385] munmap(0x7f6dade00000, 138412032 [pid 5384] <... futex resumed>) = 1 [pid 5380] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5055] <... rmdir resumed>) = 0 [pid 5385] <... munmap resumed>) = 0 [pid 5384] openat(AT_FDCWD, ".", O_RDONLY [pid 5380] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(4, "", [pid 5053] close(4 [pid 5380] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5053] <... close resumed>) = 0 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5384] <... openat resumed>) = 5 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(3, [pid 5054] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] rmdir("./26/file2" [pid 5385] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5384] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] close(4 [pid 5384] <... futex resumed>) = 1 [pid 5054] <... openat resumed>) = 3 [pid 5384] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5380] <... futex resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] newfstatat(3, "", [pid 5053] <... rmdir resumed>) = 0 [pid 5380] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5384] <... futex resumed>) = 0 [pid 5380] <... futex resumed>) = 1 [pid 5056] close(4 [pid 5055] <... close resumed>) = 0 [pid 5054] getdents64(3, [pid 5053] getdents64(3, [pid 5385] <... close resumed>) = 0 [pid 5384] renameat2(5, "./file2", 4, "./file1", 0 [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... close resumed>) = 0 [pid 5055] rmdir("./27" [pid 5054] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5053] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5384] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5056] rmdir("./25/file2" [pid 5055] <... rmdir resumed>) = 0 [pid 5054] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5385] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] mkdir("./28", 0777 [pid 5053] close(3 [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5385] <... futex resumed>) = 1 [pid 5384] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5380] <... futex resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5385] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5384] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] rmdir("./26" [pid 5385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5381] <... futex resumed>) = 0 [pid 5380] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... rmdir resumed>) = 0 [pid 5385] openat(AT_FDCWD, ".", O_RDONLY [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5380] <... futex resumed>) = 1 [pid 5056] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5054] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5380] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(3 [pid 5385] <... openat resumed>) = 4 [pid 5384] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5054] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] mkdir("./27", 0777 [pid 5385] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5056] rmdir("./25" [pid 5055] <... mkdir resumed>) = 0 [pid 5054] unlink("./25/binderfs" [pid 5385] <... futex resumed>) = 1 [pid 5384] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5381] <... futex resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5053] <... mkdir resumed>) = 0 [pid 5385] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5384] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5381] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... futex resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5385] <... futex resumed>) = 0 [pid 5384] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] <... futex resumed>) = 1 [pid 5380] exit_group(0 [pid 5056] mkdir("./26", 0777 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5054] <... unlink resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5385] openat(AT_FDCWD, ".", O_RDONLY [pid 5384] <... futex resumed>) = ? [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5380] <... exit_group resumed>) = ? [pid 5385] <... openat resumed>) = 5 [pid 5384] +++ exited with 0 +++ [pid 5054] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5056] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5385] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5385] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5380] +++ exited with 0 +++ [pid 5054] <... umount2 resumed>) = 0 [pid 5381] <... futex resumed>) = 0 [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5380, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5385] renameat2(5, "./file2", 4, "./file1", 0 [pid 5054] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] <... renameat2 resumed>) = -1 ENOENT (No such file or directory) [pid 5056] <... ioctl resumed>) = 0 [pid 5055] <... ioctl resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5385] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] newfstatat(AT_FDCWD, "./25/file2", [pid 5385] <... futex resumed>) = 1 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5385] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5054] umount2("./25/file2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5054] openat(AT_FDCWD, "./25/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] close(3 [pid 5054] <... openat resumed>) = 4 [pid 5053] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5381] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5054] newfstatat(4, "", [pid 5053] <... close resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5381] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5385] <... futex resumed>) = 0 [pid 5381] <... futex resumed>) = 1 [pid 5054] getdents64(4, ./strace-static-x86_64: Process 5387 attached ./strace-static-x86_64: Process 5386 attached [pid 5385] renameat2(4, NULL, 5, NULL, RENAME_NOREPLACE|RENAME_WHITEOUT [pid 5381] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(3 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(3, [pid 5387] set_robust_list(0x555556b376a0, 24 [pid 5386] set_robust_list(0x555556b376a0, 24 [pid 5055] <... clone resumed>, child_tidptr=0x555556b37690) = 5387 [pid 5053] <... clone resumed>, child_tidptr=0x555556b37690) = 5386 [pid 5051] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5387] <... set_robust_list resumed>) = 0 [pid 5386] <... set_robust_list resumed>) = 0 [pid 5051] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5386] chdir("./27" [pid 5051] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5387] chdir("./28" [pid 5385] <... renameat2 resumed>) = -1 EFAULT (Bad address) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5385] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] unlink("./26/binderfs" [pid 5387] <... chdir resumed>) = 0 [pid 5385] <... futex resumed>) = 0 [pid 5054] getdents64(4, [pid 5385] futex(0x7f6db644f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] <... unlink resumed>) = 0 [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5051] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] setpgid(0, 0 [pid 5054] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5054] close(4 [pid 5387] <... setpgid resumed>) = 0 [pid 5381] exit_group(0 [pid 5054] <... close resumed>) = 0 [pid 5054] rmdir("./25/file2" [pid 5056] <... close resumed>) = 0 [pid 5054] <... rmdir resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] getdents64(3, [pid 5385] <... futex resumed>) = ? [pid 5381] <... exit_group resumed>) = ? [pid 5054] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5386] <... chdir resumed>) = 0 [pid 5385] +++ exited with 0 +++ [pid 5381] +++ exited with 0 +++ [pid 5054] close(3) = 0 [pid 5054] rmdir("./25" [pid 5386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5054] <... rmdir resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5051] <... umount2 resumed>) = 0 [pid 5054] mkdir("./26", 0777 [pid 5387] <... openat resumed>) = 3 [pid 5386] <... prctl resumed>) = 0 [pid 5052] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] write(3, "1000", 4 [pid 5386] setpgid(0, 0 [pid 5054] <... mkdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] <... write resumed>) = 4 [pid 5386] <... setpgid resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5387] close(3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5387] <... close resumed>) = 0 [pid 5386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5052] <... openat resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./26/file2", [pid 5387] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5388 attached [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5388] set_robust_list(0x555556b376a0, 24) = 0 [pid 5388] chdir("./26" [pid 5387] <... symlink resumed>) = 0 [pid 5051] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5054] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./26/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5388] <... chdir resumed>) = 0 [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] <... clone resumed>, child_tidptr=0x555556b37690) = 5388 [pid 5388] <... prctl resumed>) = 0 [pid 5386] <... openat resumed>) = 3 [pid 5388] setpgid(0, 0 [pid 5051] <... openat resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5387] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5054] ioctl(3, LOOP_CLR_FD [pid 5052] getdents64(3, [pid 5051] newfstatat(4, "", [pid 5387] <... futex resumed>) = 0 [pid 5388] <... setpgid resumed>) = 0 [pid 5052] <... getdents64 resumed>0x555556b38730 /* 4 entries */, 32768) = 112 [pid 5387] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5387] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5387] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5386] write(3, "1000", 4 [pid 5051] getdents64(4, [pid 5387] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5387] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5386] <... write resumed>) = 4 [pid 5052] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5387] <... mmap resumed>) = 0x7f6db6363000 [pid 5388] <... openat resumed>) = 3 [pid 5386] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(4, [pid 5387] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5386] <... close resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5051] <... getdents64 resumed>0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5388] write(3, "1000", 4 [pid 5051] close(4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5387] <... mprotect resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5388] <... write resumed>) = 4 [pid 5388] close(3) = 0 [pid 5387] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5052] unlink("./26/binderfs" [pid 5051] rmdir("./26/file2" [pid 5386] symlink("/dev/binderfs", "./binderfs" [pid 5388] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5388] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5386] <... symlink resumed>) = 0 [pid 5388] <... futex resumed>) = 0 [pid 5388] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5386] futex(0x7f6db644f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... unlink resumed>) = 0 [pid 5387] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5051] getdents64(3, [pid 5388] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5387] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5051] <... getdents64 resumed>0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5386] <... futex resumed>) = 0 [pid 5052] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5389 attached [pid 5388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5386] rt_sigaction(SIGRT_1, {sa_handler=0x7f6db63ed2a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6db63de450}, [pid 5051] close(3 [pid 5389] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5388] <... mmap resumed>) = 0x7f6db6363000 [pid 5387] <... clone3 resumed> => {parent_tid=[5389]}, 88) = 5389 [pid 5386] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5389] <... rseq resumed>) = 0 [pid 5388] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5386] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5051] <... close resumed>) = 0 [pid 5389] set_robust_list(0x7f6db63839a0, 24 [pid 5387] rt_sigprocmask(SIG_SETMASK, [], [pid 5386] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] rmdir("./26" [pid 5389] <... set_robust_list resumed>) = 0 [pid 5387] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5389] rt_sigprocmask(SIG_SETMASK, [], [pid 5388] <... mprotect resumed>) = 0 [pid 5387] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5386] <... mmap resumed>) = 0x7f6db6363000 [pid 5051] <... rmdir resumed>) = 0 [pid 5387] <... futex resumed>) = 0 [pid 5386] mprotect(0x7f6db6364000, 131072, PROT_READ|PROT_WRITE [pid 5389] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5388] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5387] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5386] <... mprotect resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] mkdir("./27", 0777 [pid 5388] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5389] memfd_create("syzkaller", 0 [pid 5388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0}./strace-static-x86_64: Process 5390 attached [pid 5390] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5388] <... clone3 resumed> => {parent_tid=[5390]}, 88) = 5390 [pid 5051] <... mkdir resumed>) = 0 [pid 5390] <... rseq resumed>) = 0 [pid 5388] rt_sigprocmask(SIG_SETMASK, [], [pid 5386] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5390] set_robust_list(0x7f6db63839a0, 24 [pid 5389] <... memfd_create resumed>) = 3 [pid 5388] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5390] <... set_robust_list resumed>) = 0 [pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5388] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] rt_sigprocmask(SIG_SETMASK, [], [pid 5388] <... futex resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5390] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5389] <... mmap resumed>) = 0x7f6dade00000 [pid 5388] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5386] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5052] newfstatat(AT_FDCWD, "./26/file2", [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5390] memfd_create("syzkaller", 0 [pid 5389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5386] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6db6383990, parent_tid=0x7f6db6383990, exit_signal=0, stack=0x7f6db6363000, stack_size=0x20300, tls=0x7f6db63836c0} [pid 5054] <... ioctl resumed>) = 0 [pid 5052] umount2("./26/file2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5390] <... memfd_create resumed>) = 3 [pid 5390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6dade00000 [pid 5054] close(3./strace-static-x86_64: Process 5391 attached [pid 5390] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5389] <... write resumed>) = 524288 [pid 5054] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5391] rseq(0x7f6db6383fe0, 0x20, 0, 0x53053053 [pid 5386] <... clone3 resumed> => {parent_tid=[5391]}, 88) = 5391 [pid 5052] openat(AT_FDCWD, "./26/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... ioctl resumed>) = 0 [pid 5389] munmap(0x7f6dade00000, 138412032 [pid 5386] rt_sigprocmask(SIG_SETMASK, [], [pid 5052] <... openat resumed>) = 4 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5386] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5052] getdents64(4, [pid 5386] futex(0x7f6db644f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] <... getdents64 resumed>0x555556b40770 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, 0x555556b40770 /* 0 entries */, 32768) = 0 [pid 5386] <... futex resumed>) = 0 [pid 5052] close(4 [pid 5386] futex(0x7f6db644f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./26/file2") = 0 [pid 5052] getdents64(3, 0x555556b38730 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [pid 5052] rmdir("./26" [pid 5391] <... rseq resumed>) = 0 [pid 5389] <... munmap resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... rmdir resumed>) = 0 [pid 5051] close(3 [pid 5052] mkdir("./27", 0777 [pid 5391] set_robust_list(0x7f6db63839a0, 24 [pid 5389] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] <... close resumed>) = 0 [pid 5391] <... set_robust_list resumed>) = 0 [pid 5389] <... openat resumed>) = 4 [pid 5054] <... clone resumed>, child_tidptr=0x555556b37690) = 5392 ./strace-static-x86_64: Process 5392 attached [pid 5391] rt_sigprocmask(SIG_SETMASK, [], [pid 5389] ioctl(4, LOOP_SET_FD, 3 [pid 5392] set_robust_list(0x555556b376a0, 24 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5393 attached [pid 5392] <... set_robust_list resumed>) = 0 [pid 5391] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5390] <... write resumed>) = 524288 [pid 5389] <... ioctl resumed>) = 0 [pid 5390] munmap(0x7f6dade00000, 138412032 [pid 5391] memfd_create("syzkaller", 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556b37690) = 5393 [pid 5393] set_robust_list(0x555556b376a0, 24 [pid 5391] <... memfd_create resumed>) = 3 [pid 5390] <... munmap resumed>) = 0