./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3620422733

<...>
Warning: Permanently added '10.128.1.87' (ECDSA) to the list of known hosts.
execve("./syz-executor3620422733", ["./syz-executor3620422733"], 0x7fffb487fc30 /* 10 vars */) = 0
brk(NULL)                               = 0x555557287000
brk(0x555557287c40)                     = 0x555557287c40
arch_prctl(ARCH_SET_FS, 0x555557287300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x5555572875d0)         = 292
set_robust_list(0x5555572875e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f600e040690, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f600e040d60}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f600e040730, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f600e040d60}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3620422733", 4096) = 28
brk(0x5555572a8c40)                     = 0x5555572a8c40
brk(0x5555572a9000)                     = 0x5555572a9000
mprotect(0x7f600e103000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 293
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 294
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 295
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 296
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 297
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 298
./strace-static-x86_64: Process 294 attached
[pid   294] set_robust_list(0x5555572875e0, 24) = 0
[pid   294] getpid()                    = 294
[pid   294] mkdir("./syzkaller.6GNILo", 0700./strace-static-x86_64: Process 295 attached
./strace-static-x86_64: Process 296 attached
./strace-static-x86_64: Process 297 attached
./strace-static-x86_64: Process 298 attached
./strace-static-x86_64: Process 293 attached
 <unfinished ...>
[pid   298] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   297] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   296] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   295] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   296] <... set_robust_list resumed>) = 0
[pid   296] getpid( <unfinished ...>
[pid   298] <... set_robust_list resumed>) = 0
[pid   297] <... set_robust_list resumed>) = 0
[pid   295] <... set_robust_list resumed>) = 0
[pid   294] <... mkdir resumed>)        = 0
[pid   293] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   296] <... getpid resumed>)       = 296
[pid   297] getpid( <unfinished ...>
[pid   296] mkdir("./syzkaller.2mSqAy", 0700 <unfinished ...>
[pid   295] getpid( <unfinished ...>
[pid   298] getpid( <unfinished ...>
[pid   297] <... getpid resumed>)       = 297
[pid   295] <... getpid resumed>)       = 295
[pid   294] chmod("./syzkaller.6GNILo", 0777 <unfinished ...>
[pid   293] <... set_robust_list resumed>) = 0
[pid   298] <... getpid resumed>)       = 298
[pid   298] mkdir("./syzkaller.kumyKI", 0700 <unfinished ...>
[pid   297] mkdir("./syzkaller.IrUvXE", 0700 <unfinished ...>
[pid   296] <... mkdir resumed>)        = 0
[pid   295] mkdir("./syzkaller.qF1bbv", 0700 <unfinished ...>
[pid   294] <... chmod resumed>)        = 0
[pid   297] <... mkdir resumed>)        = 0
[pid   296] chmod("./syzkaller.2mSqAy", 0777 <unfinished ...>
[pid   294] chdir("./syzkaller.6GNILo" <unfinished ...>
[pid   297] chmod("./syzkaller.IrUvXE", 0777) = 0
[pid   296] <... chmod resumed>)        = 0
[pid   293] getpid( <unfinished ...>
[pid   294] <... chdir resumed>)        = 0
[pid   297] chdir("./syzkaller.IrUvXE") = 0
[pid   298] <... mkdir resumed>)        = 0
[pid   297] mkdir("./0", 0777 <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   296] chdir("./syzkaller.2mSqAy" <unfinished ...>
[pid   298] chmod("./syzkaller.kumyKI", 0777 <unfinished ...>
[pid   295] chmod("./syzkaller.qF1bbv", 0777 <unfinished ...>
[pid   294] mkdir("./0", 0777 <unfinished ...>
[pid   293] <... getpid resumed>)       = 293
[pid   296] <... chdir resumed>)        = 0
[pid   297] <... mkdir resumed>)        = 0
[pid   295] <... chmod resumed>)        = 0
[pid   296] mkdir("./0", 0777 <unfinished ...>
[pid   295] chdir("./syzkaller.qF1bbv" <unfinished ...>
[pid   298] <... chmod resumed>)        = 0
[pid   293] mkdir("./syzkaller.SN8fLk", 0700 <unfinished ...>
[pid   295] <... chdir resumed>)        = 0
[pid   294] <... mkdir resumed>)        = 0
[pid   296] <... mkdir resumed>)        = 0
[pid   298] chdir("./syzkaller.kumyKI" <unfinished ...>
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] mkdir("./0", 0777 <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   298] <... chdir resumed>)        = 0
[pid   293] <... mkdir resumed>)        = 0
[pid   295] <... mkdir resumed>)        = 0
[pid   298] mkdir("./0", 0777 <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   298] <... mkdir resumed>)        = 0
[pid   297] <... openat resumed>)       = 3
[pid   296] <... openat resumed>)       = 3
[pid   293] chmod("./syzkaller.SN8fLk", 0777 <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   296] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   296] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   296] close(3)                    = 0
[pid   298] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   298] close(3)                    = 0
[pid   297] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   297] close(3)                    = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] <... chmod resumed>)        = 0
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 299
[pid   293] chdir("./syzkaller.SN8fLk") = 0
[pid   293] mkdir("./0", 0777 <unfinished ...>
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 301
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 300
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 302
[pid   293] <... mkdir resumed>)        = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 303
./strace-static-x86_64: Process 303 attached
[pid   303] set_robust_list(0x5555572875e0, 24) = 0
[pid   303] chdir("./0")                = 0
[pid   303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   303] setpgid(0, 0)               = 0
[pid   303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   303] write(3, "1000", 4)         = 4
[pid   303] close(3)                    = 0
[pid   303] symlink("/dev/binderfs", "./binderfs") = 0
[pid   303] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   303] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   303] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[304], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 304
[pid   303] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   303] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 304 attached
 <unfinished ...>
[pid   304] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   304] memfd_create("syzkaller", 0) = 3
[pid   304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   304] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   304] munmap(0x7f6005c0f000, 262144) = 0
[pid   304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[   19.521799][   T30] audit: type=1400 audit(1686806008.038:66): avc:  denied  { execmem } for  pid=292 comm="syz-executor362" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   19.531612][   T30] audit: type=1400 audit(1686806008.038:68): avc:  denied  { open } for  pid=296 comm="syz-executor362" path="/dev/loop3" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   19.542427][   T30] audit: type=1400 audit(1686806008.038:67): avc:  denied  { read write } for  pid=297 comm="syz-executor362" name="loop4" dev="devtmpfs" ino=116 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid   304] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 302 attached
./strace-static-x86_64: Process 301 attached
./strace-static-x86_64: Process 300 attached
./strace-static-x86_64: Process 299 attached
 <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   304] <... ioctl resumed>)        = 0
[pid   304] close(3)                    = 0
[pid   304] mkdir("./file1", 0777)      = 0
[pid   304] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   302] set_robust_list(0x5555572875e0, 24) = 0
[pid   302] chdir("./0")                = 0
[pid   302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   302] setpgid(0, 0)               = 0
[pid   302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   302] write(3, "1000", 4)         = 4
[pid   302] close(3)                    = 0
[pid   302] symlink("/dev/binderfs", "./binderfs") = 0
[pid   302] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   302] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   302] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[306], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 306
[pid   302] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   301] set_robust_list(0x5555572875e0, 24) = 0
[pid   301] chdir("./0")                = 0
[pid   301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   301] setpgid(0, 0)               = 0
[pid   301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   301] write(3, "1000", 4)         = 4
[pid   301] close(3)                    = 0
[pid   301] symlink("/dev/binderfs", "./binderfs") = 0
[pid   301] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   301] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   301] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[307], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 307
[pid   301] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   301] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   300] set_robust_list(0x5555572875e0, 24) = 0
[pid   300] chdir("./0")                = 0
[pid   300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   300] setpgid(0, 0)               = 0
[pid   300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   300] write(3, "1000", 4)         = 4
[pid   300] close(3)                    = 0
[pid   300] symlink("/dev/binderfs", "./binderfs") = 0
[pid   300] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   300] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   300] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[308], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 308
[pid   300] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   299] set_robust_list(0x5555572875e0, 24) = 0
[pid   299] chdir("./0")                = 0
[pid   299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   299] setpgid(0, 0)               = 0
[pid   299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   299] write(3, "1000", 4)         = 4
[pid   299] close(3)                    = 0
[pid   299] symlink("/dev/binderfs", "./binderfs") = 0
[pid   299] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   299] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   299] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] <... clone resumed>, parent_tid=[309], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 309
[pid   299] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   299] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   294] close(3)                    = 0
[   19.546398][  T304] loop0: detected capacity change from 0 to 512
[   19.572880][   T30] audit: type=1400 audit(1686806008.048:69): avc:  denied  { ioctl } for  pid=295 comm="syz-executor362" path="/dev/loop2" dev="devtmpfs" ino=114 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 310 attached
./strace-static-x86_64: Process 309 attached
./strace-static-x86_64: Process 308 attached
./strace-static-x86_64: Process 307 attached
./strace-static-x86_64: Process 306 attached
, child_tidptr=0x5555572875d0) = 310
[pid   309] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   309] memfd_create("syzkaller", 0) = 3
[pid   309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   308] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   307] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   308] <... set_robust_list resumed>) = 0
[pid   307] <... set_robust_list resumed>) = 0
[pid   308] memfd_create("syzkaller", 0 <unfinished ...>
[pid   307] memfd_create("syzkaller", 0 <unfinished ...>
[pid   308] <... memfd_create resumed>) = 3
[pid   307] <... memfd_create resumed>) = 3
[pid   308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   306] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   306] memfd_create("syzkaller", 0) = 3
[pid   306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   309] <... write resumed>)        = 262144
[pid   309] munmap(0x7f6005c0f000, 262144) = 0
[pid   309] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   309] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   308] <... write resumed>)        = 262144
[pid   307] <... write resumed>)        = 262144
[pid   306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   307] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   308] munmap(0x7f6005c0f000, 262144) = 0
[pid   307] <... munmap resumed>)       = 0
[pid   307] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   308] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   308] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[   19.602449][   T30] audit: type=1400 audit(1686806008.088:70): avc:  denied  { mounton } for  pid=303 comm="syz-executor362" path="/root/syzkaller.SN8fLk/0/file1" dev="sda1" ino=1940 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   19.632744][  T309] loop2: detected capacity change from 0 to 512
[   19.632752][  T304] EXT4-fs (loop0): 1 orphan inode deleted
[   19.632768][  T304] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   19.640838][  T308] loop3: detected capacity change from 0 to 512
[pid   307] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   304] <... mount resumed>)        = 0
[pid   306] <... write resumed>)        = 262144
[pid   310] set_robust_list(0x5555572875e0, 24) = 0
[pid   310] chdir("./0")                = 0
[pid   310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   310] setpgid(0, 0)               = 0
[pid   310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   306] munmap(0x7f6005c0f000, 262144) = 0
[pid   310] write(3, "1000", 4)         = 4
[pid   310] close(3)                    = 0
[pid   310] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   306] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   310] <... symlink resumed>)      = 0
[pid   306] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   310] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... ioctl resumed>)        = 0
[pid   308] <... ioctl resumed>)        = 0
[pid   307] <... ioctl resumed>)        = 0
[pid   304] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   309] close(3 <unfinished ...>
[pid   308] close(3 <unfinished ...>
[pid   304] <... openat resumed>)       = 3
[pid   309] <... close resumed>)        = 0
[pid   308] <... close resumed>)        = 0
[pid   304] chdir("./file1" <unfinished ...>
[pid   309] mkdir("./file1", 0777 <unfinished ...>
[pid   308] mkdir("./file1", 0777 <unfinished ...>
[pid   304] <... chdir resumed>)        = 0
[pid   309] <... mkdir resumed>)        = 0
[pid   308] <... mkdir resumed>)        = 0
[pid   304] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   309] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   308] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   304] <... ioctl resumed>)        = 0
[pid   310] <... futex resumed>)        = 0
[pid   307] close(3 <unfinished ...>
[pid   306] <... ioctl resumed>)        = 0
[pid   304] close(4 <unfinished ...>
[pid   310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   307] <... close resumed>)        = 0
[pid   304] <... close resumed>)        = 0
[pid   304] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   303] <... futex resumed>)        = 0
[pid   304] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   303] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   303] <... futex resumed>)        = 0
[   19.645302][  T304] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/0/file1 supports timestamps until 2038 (0x7fffffff)
[   19.655694][  T307] loop5: detected capacity change from 0 to 512
[   19.661972][   T30] audit: type=1400 audit(1686806008.158:71): avc:  denied  { mount } for  pid=303 comm="syz-executor362" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   19.675805][  T306] loop4: detected capacity change from 0 to 512
[pid   304] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   303] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   310] <... mmap resumed>)         = 0x7f600e00f000
[pid   307] mkdir("./file1", 0777 <unfinished ...>
[pid   306] close(3 <unfinished ...>
[pid   304] <... open resumed>)         = 4
[pid   310] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   307] <... mkdir resumed>)        = 0
[pid   310] <... mprotect resumed>)     = 0
[pid   307] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   306] <... close resumed>)        = 0
[pid   310] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   306] mkdir("./file1", 0777 <unfinished ...>
[pid   310] <... clone resumed>, parent_tid=[317], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 317
[pid   310] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] <... mkdir resumed>)        = 0
[pid   310] <... futex resumed>)        = 0
[pid   310] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   306] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue"./strace-static-x86_64: Process 317 attached
 <unfinished ...>
[pid   317] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   317] memfd_create("syzkaller", 0) = 3
[pid   317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   317] munmap(0x7f6005c0f000, 262144) = 0
[pid   317] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   317] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   304] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   317] <... ioctl resumed>)        = 0
[pid   317] close(3)                    = 0
[pid   317] mkdir("./file1", 0777)      = 0
[pid   317] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   303] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] fallocate(4, 0, 35143, 7)   = 0
[pid   303] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   303] <... mmap resumed>)         = 0x7f6005c2e000
[pid   304] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   303] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   303] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[323], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 323
[pid   303] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   303] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 323 attached
 <unfinished ...>
[pid   323] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   323] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid   323] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] <... futex resumed>)        = 0
[pid   303] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   303] <... futex resumed>)        = 1
[pid   304] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   303] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   304] <... open resumed>)         = 5
[pid   304] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   303] <... futex resumed>)        = 0
[pid   304] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   303] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   303] <... futex resumed>)        = 0
[pid   304] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   303] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   304] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   303] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   303] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   323] <... futex resumed>)        = 1
[   19.712256][   T30] audit: type=1400 audit(1686806008.228:72): avc:  denied  { write } for  pid=303 comm="syz-executor362" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   19.719240][  T317] loop1: detected capacity change from 0 to 512
[   19.734433][   T30] audit: type=1400 audit(1686806008.228:73): avc:  denied  { add_name } for  pid=303 comm="syz-executor362" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   19.765853][  T308] EXT4-fs (loop3): 1 orphan inode deleted
[   19.769502][   T30] audit: type=1400 audit(1686806008.228:74): avc:  denied  { create } for  pid=303 comm="syz-executor362" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1
[   19.773127][  T308] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   323] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   304] <... write resumed>)        = 262144
[pid   303] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   304] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   308] <... mount resumed>)        = 0
[pid   308] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   308] chdir("./file1")            = 0
[pid   308] ioctl(4, LOOP_CLR_FD)       = 0
[pid   308] close(4)                    = 0
[pid   308] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... futex resumed>)        = 0
[pid   300] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   308] <... futex resumed>)        = 1
[pid   308] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   308] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... futex resumed>)        = 0
[pid   300] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   300] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   300] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[328], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 328
[pid   300] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   308] <... futex resumed>)        = 1
[pid   308] fallocate(4, 0, 35143, 7)   = 0
[pid   308] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   308] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   303] exit_group(0 <unfinished ...>
[pid   323] <... futex resumed>)        = ?
[pid   304] <... futex resumed>)        = ?
[pid   303] <... exit_group resumed>)   = ?
[pid   323] +++ exited with 0 +++
[pid   304] +++ exited with 0 +++
[pid   303] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=303, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   293] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   293] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./0/binderfs")      = 0
[   19.792321][   T30] audit: type=1400 audit(1686806008.228:75): avc:  denied  { read write open } for  pid=303 comm="syz-executor362" path="/root/syzkaller.SN8fLk/0/file1/bus" dev="loop0" ino=16 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1
[   19.804571][  T309] EXT4-fs (loop2): 1 orphan inode deleted
[   19.828482][  T308] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/0/file1 supports timestamps until 2038 (0x7fffffff)
[   19.833755][  T309] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   19.852733][  T307] EXT4-fs (loop5): 1 orphan inode deleted
[pid   293] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 328 attached
 <unfinished ...>
[pid   309] <... mount resumed>)        = 0
[pid   300] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   300] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   300] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   300] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   300] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   300] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   300] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   308] <... futex resumed>)        = 0
[pid   308] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   308] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... futex resumed>)        = 0
[pid   300] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   308] <... futex resumed>)        = 1
[pid   308] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   308] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... futex resumed>)        = 0
[pid   300] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   308] <... futex resumed>)        = 1
[   19.863430][  T309] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/0/file1 supports timestamps until 2038 (0x7fffffff)
[   19.866098][  T306] EXT4-fs (loop4): 1 orphan inode deleted
[   19.875128][  T307] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   19.881016][  T317] EXT4-fs (loop1): 1 orphan inode deleted
[   19.893649][  T307] ext4 filesystem being mounted at /root/syzkaller.kumyKI/0/file1 supports timestamps until 2038 (0x7fffffff)
[   19.906006][  T306] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   308] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   328] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   309] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   307] <... mount resumed>)        = 0
[pid   308] <... write resumed>)        = 167936
[pid   308] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... futex resumed>)        = 0
[pid   308] <... futex resumed>)        = 1
[pid   308] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   328] <... set_robust_list resumed>) = 0
[pid   309] <... openat resumed>)       = 3
[pid   307] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   306] <... mount resumed>)        = 0
[pid   306] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   306] chdir("./file1")            = 0
[pid   306] ioctl(4, LOOP_CLR_FD)       = 0
[pid   306] close(4)                    = 0
[pid   306] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... futex resumed>)        = 0
[pid   302] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   306] <... futex resumed>)        = 1
[pid   306] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   306] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... futex resumed>)        = 0
[pid   302] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   302] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   302] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[331], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 331
[pid   302] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   306] <... futex resumed>)        = 1
[pid   306] fallocate(4, 0, 35143, 7)   = 0
[pid   306] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 331 attached
 <unfinished ...>
[pid   331] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   331] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL) = 0
[pid   331] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... futex resumed>)        = 0
[pid   302] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   302] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   306] <... futex resumed>)        = 0
[pid   306] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   306] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... futex resumed>)        = 0
[pid   302] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   306] <... futex resumed>)        = 1
[pid   306] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   306] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... futex resumed>)        = 0
[pid   302] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   302] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   306] <... futex resumed>)        = 1
[pid   306] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   293] <... umount2 resumed>)      = 0
[pid   293] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   293] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   328] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   309] chdir("./file1" <unfinished ...>
[pid   307] <... openat resumed>)       = 3
[pid   293] close(4)                    = 0
[pid   293] rmdir("./0/file1")          = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3)                    = 0
[pid   293] rmdir("./0")                = 0
[pid   293] mkdir("./1", 0777)          = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 332
[pid   306] <... write resumed>)        = 262144
[pid   306] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... futex resumed>)        = 0
[pid   306] <... futex resumed>)        = 1
[pid   302] exit_group(0)               = ?
[pid   306] +++ exited with 0 +++
[pid   331] <... futex resumed>)        = ?
[pid   309] <... chdir resumed>)        = 0
[pid   328] <... mount resumed>)        = 0
[pid   309] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   307] chdir("./file1" <unfinished ...>
[pid   328] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... ioctl resumed>)        = 0
[pid   307] <... chdir resumed>)        = 0
[pid   328] <... futex resumed>)        = 0
[pid   309] close(4 <unfinished ...>
[pid   307] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 332 attached
 <unfinished ...>
[pid   331] +++ exited with 0 +++
[pid   317] <... mount resumed>)        = 0
[pid   302] +++ exited with 0 +++
[pid   300] exit_group(0 <unfinished ...>
[pid   309] <... close resumed>)        = 0
[pid   308] <... futex resumed>)        = ?
[pid   307] <... ioctl resumed>)        = 0
[pid   300] <... exit_group resumed>)   = ?
[pid   328] +++ exited with 0 +++
[pid   309] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   308] +++ exited with 0 +++
[pid   307] close(4 <unfinished ...>
[pid   300] +++ exited with 0 +++
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=302, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   297] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   317] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   309] <... futex resumed>)        = 1
[pid   307] <... close resumed>)        = 0
[pid   299] <... futex resumed>)        = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=300, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   299] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   317] <... openat resumed>)       = 3
[pid   309] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   307] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = 0
[pid   297] <... openat resumed>)       = 3
[pid   296] <... restart_syscall resumed>) = 0
[pid   317] chdir("./file1" <unfinished ...>
[pid   309] <... open resumed>)         = 4
[pid   307] <... futex resumed>)        = 1
[pid   301] <... futex resumed>)        = 0
[pid   299] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] fstat(3,  <unfinished ...>
[pid   317] <... chdir resumed>)        = 0
[pid   309] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   301] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   317] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   309] <... futex resumed>)        = 0
[pid   307] <... open resumed>)         = 4
[pid   301] <... futex resumed>)        = 0
[pid   299] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   296] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   309] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   307] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   301] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... futex resumed>)        = 0
[pid   297] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   317] <... ioctl resumed>)        = 0
[pid   309] <... fallocate resumed>)    = 0
[pid   307] <... futex resumed>)        = 0
[pid   301] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   299] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   309] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   301] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... openat resumed>)       = 3
[pid   309] <... futex resumed>)        = 0
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   301] <... futex resumed>)        = 0
[pid   299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] lstat("./0/binderfs",  <unfinished ...>
[pid   296] fstat(3,  <unfinished ...>
[pid   309] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   307] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   301] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... mmap resumed>)         = 0x7f6005c2e000
[pid   297] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   307] <... fallocate resumed>)    = 0
[pid   301] <... futex resumed>)        = 0
[pid   299] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] unlink("./0/binderfs" <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   307] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   299] <... mprotect resumed>)     = 0
[pid   297] <... unlink resumed>)       = 0
[pid   296] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   307] <... futex resumed>)        = 0
[pid   301] <... mmap resumed>)         = 0x7f6005c2e000
[pid   299] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   317] close(4 <unfinished ...>
[pid   307] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   301] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   332] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   317] <... close resumed>)        = 0
[pid   301] <... mprotect resumed>)     = 0
[pid   299] <... clone resumed>, parent_tid=[333], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 333
[pid   296] lstat("./0/binderfs", ./strace-static-x86_64: Process 333 attached
 <unfinished ...>
[pid   332] <... set_robust_list resumed>) = 0
[pid   317] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   301] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   299] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   317] <... futex resumed>)        = 1
[pid   310] <... futex resumed>)        = 0
[pid   299] <... futex resumed>)        = 0
[pid   296] unlink("./0/binderfs"./strace-static-x86_64: Process 334 attached
 <unfinished ...>
[pid   333] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   332] chdir("./1" <unfinished ...>
[pid   317] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   310] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   301] <... clone resumed>, parent_tid=[334], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 334
[pid   299] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] <... unlink resumed>)       = 0
[pid   301] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   334] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   333] <... set_robust_list resumed>) = 0
[pid   332] <... chdir resumed>)        = 0
[pid   317] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   310] <... futex resumed>)        = 0
[pid   301] <... futex resumed>)        = 0
[pid   301] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   332] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   317] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   310] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   334] <... set_robust_list resumed>) = 0
[pid   334] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL) = 0
[pid   334] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   301] <... futex resumed>)        = 0
[pid   334] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   301] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = 0
[pid   301] <... futex resumed>)        = 1
[pid   307] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   301] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] <... open resumed>)         = 5
[pid   307] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   301] <... futex resumed>)        = 0
[pid   307] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   301] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   301] <... futex resumed>)        = 0
[pid   307] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   301] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   307] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   301] <... futex resumed>)        = 0
[pid   307] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   301] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   301] <... futex resumed>)        = 0
[pid   307] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   301] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   333] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   332] <... prctl resumed>)        = 0
[pid   317] <... open resumed>)         = 4
[pid   333] <... mount resumed>)        = 0
[pid   332] setpgid(0, 0 <unfinished ...>
[pid   317] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   333] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] <... setpgid resumed>)      = 0
[pid   317] <... futex resumed>)        = 1
[pid   310] <... futex resumed>)        = 0
[pid   333] <... futex resumed>)        = 1
[pid   332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   317] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   310] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = 0
[pid   333] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   332] <... openat resumed>)       = 3
[pid   317] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   310] <... futex resumed>)        = 0
[pid   307] <... write resumed>)        = 262144
[pid   299] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] write(3, "1000", 4 <unfinished ...>
[pid   317] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   310] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... futex resumed>)        = 0
[pid   307] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = 1
[pid   307] <... futex resumed>)        = 1
[pid   301] <... futex resumed>)        = 0
[pid   307] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   301] exit_group(0 <unfinished ...>
[pid   334] <... futex resumed>)        = ?
[pid   307] <... futex resumed>)        = ?
[pid   301] <... exit_group resumed>)   = ?
[pid   334] +++ exited with 0 +++
[pid   307] +++ exited with 0 +++
[pid   301] +++ exited with 0 +++
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   298] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   298] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   298] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   310] <... futex resumed>)        = 0
[pid   309] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   317] <... fallocate resumed>)    = 0
[pid   298] unlink("./0/binderfs" <unfinished ...>
[pid   332] <... write resumed>)        = 4
[pid   317] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   309] <... open resumed>)         = 5
[pid   299] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... unlink resumed>)       = 0
[pid   332] close(3 <unfinished ...>
[pid   317] <... futex resumed>)        = 0
[pid   310] <... mmap resumed>)         = 0x7f6005c2e000
[pid   309] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   298] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   332] <... close resumed>)        = 0
[pid   317] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   310] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   309] <... futex resumed>)        = 0
[pid   299] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   310] <... mprotect resumed>)     = 0
[pid   309] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   299] <... futex resumed>)        = 0
[pid   332] <... symlink resumed>)      = 0
[pid   310] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   309] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   299] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   332] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   332] <... futex resumed>)        = 0
[pid   310] <... clone resumed>, parent_tid=[335], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 335
[pid   309] <... futex resumed>)        = 0
[pid   299] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   310] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   299] <... futex resumed>)        = 0
./strace-static-x86_64: Process 335 attached
[pid   332] <... mmap resumed>)         = 0x7f600e00f000
[pid   310] <... futex resumed>)        = 0
[pid   335] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   332] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   310] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   332] <... mprotect resumed>)     = 0
[   19.909199][  T317] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   19.927346][  T306] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/0/file1 supports timestamps until 2038 (0x7fffffff)
[   19.930558][  T317] ext4 filesystem being mounted at /root/syzkaller.6GNILo/0/file1 supports timestamps until 2038 (0x7fffffff)
[pid   335] <... set_robust_list resumed>) = 0
[pid   332] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   309] <... write resumed>)        = 262144
[pid   335] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   309] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] <... mount resumed>)        = 0
[pid   309] <... futex resumed>)        = 1
[pid   335] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   335] <... futex resumed>)        = 1
[pid   335] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   299] <... futex resumed>)        = 0
[pid   310] <... futex resumed>)        = 0
./strace-static-x86_64: Process 336 attached
[pid   310] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] exit_group(0 <unfinished ...>
[pid   336] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   333] <... futex resumed>)        = ?
[pid   332] <... clone resumed>, parent_tid=[336], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 336
[pid   317] <... futex resumed>)        = 0
[pid   310] <... futex resumed>)        = 1
[pid   309] <... futex resumed>)        = ?
[pid   299] <... exit_group resumed>)   = ?
[pid   336] <... set_robust_list resumed>) = 0
[pid   333] +++ exited with 0 +++
[pid   332] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   317] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   310] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   336] memfd_create("syzkaller", 0 <unfinished ...>
[pid   332] <... futex resumed>)        = 0
[pid   317] <... open resumed>)         = 5
[pid   336] <... memfd_create resumed>) = 3
[pid   332] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   317] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   317] <... futex resumed>)        = 1
[pid   310] <... futex resumed>)        = 0
[pid   336] <... mmap resumed>)         = 0x7f6005c0f000
[pid   317] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   310] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   317] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   310] <... futex resumed>)        = 0
[pid   297] <... umount2 resumed>)      = 0
[pid   296] <... umount2 resumed>)      = 0
[pid   317] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   310] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   317] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   317] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   310] <... futex resumed>)        = 0
[pid   317] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   310] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... umount2 resumed>)      = 0
[pid   317] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   310] <... futex resumed>)        = 0
[pid   317] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   310] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   336] <... write resumed>)        = 262144
[pid   336] munmap(0x7f6005c0f000, 262144) = 0
[pid   336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   336] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   317] <... write resumed>)        = 262144
[pid   309] +++ exited with 0 +++
[pid   299] +++ exited with 0 +++
[pid   298] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   317] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   317] <... futex resumed>)        = 1
[pid   310] <... futex resumed>)        = 0
[pid   298] lstat("./0/file1",  <unfinished ...>
[pid   297] lstat("./0/file1",  <unfinished ...>
[pid   296] lstat("./0/file1",  <unfinished ...>
[pid   317] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   310] exit_group(0 <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   317] <... futex resumed>)        = ?
[pid   310] <... exit_group resumed>)   = ?
[pid   298] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=299, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   317] +++ exited with 0 +++
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   335] <... futex resumed>)        = ?
[pid   298] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] <... openat resumed>)       = 4
[pid   297] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   336] <... ioctl resumed>)        = 0
[pid   298] fstat(4,  <unfinished ...>
[pid   296] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] <... openat resumed>)       = 4
[pid   295] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   297] fstat(4,  <unfinished ...>
[pid   296] <... openat resumed>)       = 4
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... openat resumed>)       = 3
[pid   296] fstat(4,  <unfinished ...>
[pid   336] close(3 <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   297] getdents64(4,  <unfinished ...>
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] fstat(3,  <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   297] getdents64(4,  <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] close(4 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   297] close(4 <unfinished ...>
[pid   295] getdents64(3,  <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   297] <... close resumed>)        = 0
[pid   296] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] rmdir("./0/file1" <unfinished ...>
[pid   297] rmdir("./0/file1" <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   295] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   336] <... close resumed>)        = 0
[pid   336] mkdir("./file1", 0777 <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   296] <... close resumed>)        = 0
[pid   297] <... rmdir resumed>)        = 0
[pid   296] rmdir("./0/file1" <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... rmdir resumed>)        = 0
[pid   295] lstat("./0/binderfs",  <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] getdents64(3,  <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] close(3 <unfinished ...>
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   298] close(3 <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   296] close(3 <unfinished ...>
[pid   295] unlink("./0/binderfs" <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   297] rmdir("./0" <unfinished ...>
[pid   296] <... close resumed>)        = 0
[pid   336] <... mkdir resumed>)        = 0
[pid   295] <... unlink resumed>)       = 0
[pid   336] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   298] rmdir("./0" <unfinished ...>
[pid   296] rmdir("./0" <unfinished ...>
[pid   295] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] mkdir("./1", 0777 <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   296] <... rmdir resumed>)        = 0
[pid   296] mkdir("./1", 0777 <unfinished ...>
[pid   297] <... mkdir resumed>)        = 0
[pid   296] <... mkdir resumed>)        = 0
[pid   298] mkdir("./1", 0777)          = 0
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   297] <... openat resumed>)       = 3
[pid   296] <... openat resumed>)       = 3
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   297] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   296] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   296] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   298] close(3 <unfinished ...>
[pid   297] close(3 <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   297] <... close resumed>)        = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   296] <... close resumed>)        = 0
[pid   335] +++ exited with 0 +++
[pid   310] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=310, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 337 attached
 <unfinished ...>
[pid   337] set_robust_list(0x5555572875e0, 24) = 0
[pid   337] chdir("./1")                = 0
[pid   337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   337] setpgid(0, 0)               = 0
[pid   337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   337] write(3, "1000", 4)         = 4
[pid   337] close(3)                    = 0
[pid   337] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 337
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 339
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 340
[pid   294] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   337] <... symlink resumed>)      = 0
[pid   294] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./0/binderfs" <unfinished ...>
[pid   337] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   294] <... unlink resumed>)       = 0
[pid   337] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   294] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   337] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[341], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 341
[pid   337] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   337] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 340 attached
 <unfinished ...>
[pid   340] set_robust_list(0x5555572875e0, 24) = 0
[pid   340] chdir("./1")                = 0
[pid   340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   340] setpgid(0, 0)               = 0
[pid   340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   340] write(3, "1000", 4)         = 4
[pid   340] close(3)                    = 0
[pid   340] symlink("/dev/binderfs", "./binderfs") = 0
[pid   340] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   340] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   340] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[342], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 342
[pid   340] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   340] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 342 attached
 <unfinished ...>
[pid   342] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   342] memfd_create("syzkaller", 0) = 3
[pid   342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   342] munmap(0x7f6005c0f000, 262144) = 0
[pid   342] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   342] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 341 attached
./strace-static-x86_64: Process 339 attached
 <unfinished ...>
[pid   295] <... umount2 resumed>)      = 0
[pid   295] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] lstat("./0/file1",  <unfinished ...>
[pid   339] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   341] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   339] <... set_robust_list resumed>) = 0
[pid   295] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   342] <... ioctl resumed>)        = 0
[pid   342] close(3)                    = 0
[pid   342] mkdir("./file1", 0777 <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   342] <... mkdir resumed>)        = 0
[pid   342] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   341] <... set_robust_list resumed>) = 0
[pid   341] memfd_create("syzkaller", 0) = 3
[pid   341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   341] munmap(0x7f6005c0f000, 262144) = 0
[pid   341] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[   20.011261][  T336] loop0: detected capacity change from 0 to 512
[   20.044519][  T342] loop3: detected capacity change from 0 to 512
[   20.053002][  T336] EXT4-fs (loop0): 1 orphan inode deleted
[pid   341] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   295] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   341] <... ioctl resumed>)        = 0
[pid   341] close(3 <unfinished ...>
[pid   295] <... openat resumed>)       = 4
[pid   341] <... close resumed>)        = 0
[pid   341] mkdir("./file1", 0777 <unfinished ...>
[pid   295] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   341] <... mkdir resumed>)        = 0
[pid   341] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   295] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   339] chdir("./1" <unfinished ...>
[pid   295] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   339] <... chdir resumed>)        = 0
[pid   295] close(4)                    = 0
[pid   339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   295] rmdir("./0/file1" <unfinished ...>
[pid   336] <... mount resumed>)        = 0
[pid   336] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   336] <... openat resumed>)       = 3
[pid   336] chdir("./file1")            = 0
[pid   336] ioctl(4, LOOP_CLR_FD)       = 0
[pid   336] close(4)                    = 0
[pid   336] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] <... futex resumed>)        = 0
[pid   332] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   332] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   336] <... futex resumed>)        = 1
[pid   336] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   295] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   339] setpgid(0, 0 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   339] <... setpgid resumed>)      = 0
[pid   294] <... umount2 resumed>)      = 0
[pid   294] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] umount2("./0/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] <... close resumed>)        = 0
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   295] rmdir("./0" <unfinished ...>
[pid   339] <... openat resumed>)       = 3
[pid   294] rmdir("./0/file1" <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   339] write(3, "1000", 4 <unfinished ...>
[pid   295] mkdir("./1", 0777 <unfinished ...>
[pid   294] <... rmdir resumed>)        = 0
[pid   339] <... write resumed>)        = 4
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3)                    = 0
[pid   294] rmdir("./0" <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   294] <... rmdir resumed>)        = 0
[pid   339] close(3 <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   294] mkdir("./1", 0777 <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... mkdir resumed>)        = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 344
[pid   339] <... close resumed>)        = 0
[pid   339] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 345
[pid   339] <... symlink resumed>)      = 0
[pid   339] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 344 attached
) = 0
[pid   339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   344] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   339] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   344] <... set_robust_list resumed>) = 0
[pid   344] chdir("./1" <unfinished ...>
[pid   339] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   344] <... chdir resumed>)        = 0
[pid   344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   344] setpgid(0, 0)               = 0
[pid   344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   344] write(3, "1000", 4 <unfinished ...>
[pid   339] <... clone resumed>, parent_tid=[346], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 346
[pid   339] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   339] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   344] <... write resumed>)        = 4
[pid   344] close(3)                    = 0
[pid   344] symlink("/dev/binderfs", "./binderfs") = 0
[pid   344] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   344] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   344] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[347], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 347
[pid   344] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 346 attached
 <unfinished ...>
[pid   346] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   346] memfd_create("syzkaller", 0) = 3
[pid   346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   336] <... open resumed>)         = 4
[pid   336] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   332] <... futex resumed>)        = 0
[pid   332] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   332] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   332] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   332] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[348], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 348
[pid   332] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   332] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   346] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   336] fallocate(4, 0, 35143, 7)   = 0
[pid   346] <... write resumed>)        = 262144
[pid   346] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   336] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   346] <... munmap resumed>)       = 0
[pid   336] <... futex resumed>)        = 0
[pid   346] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[   20.057556][  T341] loop5: detected capacity change from 0 to 512
[   20.066586][  T336] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.078207][  T336] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/1/file1 supports timestamps until 2038 (0x7fffffff)
[pid   346] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 347 attached
./strace-static-x86_64: Process 345 attached
 <unfinished ...>
[pid   336] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 348 attached
 <unfinished ...>
[pid   348] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   348] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid   348] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   332] <... futex resumed>)        = 0
[pid   332] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   346] <... ioctl resumed>)        = 0
[pid   346] close(3)                    = 0
[pid   346] mkdir("./file1", 0777 <unfinished ...>
[pid   332] <... futex resumed>)        = 0
[pid   332] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   346] <... mkdir resumed>)        = 0
[pid   346] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   336] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   336] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   336] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] <... futex resumed>)        = 0
[pid   347] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   336] <... futex resumed>)        = 1
[pid   332] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   336] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   332] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   336] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   336] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] set_robust_list(0x5555572875e0, 24) = 0
[pid   332] <... futex resumed>)        = 0
[pid   336] <... futex resumed>)        = 1
[pid   332] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   332] <... futex resumed>)        = 0
[pid   332] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] chdir("./1")                = 0
[pid   345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   345] setpgid(0, 0)               = 0
[pid   345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   345] write(3, "1000", 4)         = 4
[pid   345] close(3)                    = 0
[pid   345] symlink("/dev/binderfs", "./binderfs") = 0
[pid   345] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   345] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   345] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[349], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 349
[pid   345] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 349 attached
 <unfinished ...>
[pid   349] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   349] memfd_create("syzkaller", 0) = 3
[pid   349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   349] munmap(0x7f6005c0f000, 262144) = 0
[pid   349] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   349] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   347] <... set_robust_list resumed>) = 0
[pid   336] <... write resumed>)        = 262144
[pid   336] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   332] <... futex resumed>)        = 0
[pid   349] <... ioctl resumed>)        = 0
[pid   347] memfd_create("syzkaller", 0 <unfinished ...>
[pid   349] close(3)                    = 0
[pid   347] <... memfd_create resumed>) = 3
[pid   336] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   332] exit_group(0 <unfinished ...>
[pid   348] <... futex resumed>)        = ?
[pid   347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   332] <... exit_group resumed>)   = ?
[pid   348] +++ exited with 0 +++
[pid   347] <... mmap resumed>)         = 0x7f6005c0f000
[pid   347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   336] <... futex resumed>)        = ?
[pid   336] +++ exited with 0 +++
[pid   332] +++ exited with 0 +++
[pid   349] mkdir("./file1", 0777 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=332, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   349] <... mkdir resumed>)        = 0
[pid   293] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   347] <... write resumed>)        = 262144
[pid   293] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   349] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   293] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./1/binderfs")      = 0
[pid   293] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   347] munmap(0x7f6005c0f000, 262144) = 0
[pid   347] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   347] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   347] close(3)                    = 0
[pid   347] mkdir("./file1", 0777)      = 0
[   20.107731][  T346] loop4: detected capacity change from 0 to 512
[   20.125807][  T349] loop1: detected capacity change from 0 to 512
[   20.135899][  T342] EXT4-fs (loop3): 1 orphan inode deleted
[   20.141500][  T347] loop2: detected capacity change from 0 to 512
[   20.143376][  T341] EXT4-fs (loop5): 1 orphan inode deleted
[pid   347] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   342] <... mount resumed>)        = 0
[pid   342] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   342] chdir("./file1")            = 0
[pid   342] ioctl(4, LOOP_CLR_FD)       = 0
[pid   342] close(4)                    = 0
[pid   342] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] <... futex resumed>)        = 0
[pid   340] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   340] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[   20.153958][  T341] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.158501][  T342] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.177184][  T341] ext4 filesystem being mounted at /root/syzkaller.kumyKI/1/file1 supports timestamps until 2038 (0x7fffffff)
[   20.178786][  T349] EXT4-fs (loop1): 1 orphan inode deleted
[   20.194378][  T342] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/1/file1 supports timestamps until 2038 (0x7fffffff)
[   20.194696][  T346] EXT4-fs (loop4): 1 orphan inode deleted
[pid   342] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   342] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] <... mount resumed>)        = 0
[pid   341] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   341] chdir("./file1")            = 0
[pid   341] ioctl(4, LOOP_CLR_FD)       = 0
[pid   341] close(4)                    = 0
[pid   341] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] <... futex resumed>)        = 0
[pid   337] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   337] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   341] <... futex resumed>)        = 1
[pid   341] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   340] <... futex resumed>)        = 0
[pid   342] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   340] <... futex resumed>)        = 0
[pid   342] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   340] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... fallocate resumed>)    = 0
[pid   341] <... open resumed>)         = 4
[pid   340] <... futex resumed>)        = 0
[pid   293] <... umount2 resumed>)      = 0
[pid   342] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   342] <... futex resumed>)        = 0
[pid   342] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] <... futex resumed>)        = 1
[pid   340] <... mmap resumed>)         = 0x7f6005c2e000
[pid   337] <... futex resumed>)        = 0
[pid   293] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   340] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   341] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   340] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   337] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   341] <... fallocate resumed>)    = 0
[pid   337] <... futex resumed>)        = 0
[pid   293] lstat("./1/file1",  <unfinished ...>
[pid   340] <... clone resumed>, parent_tid=[361], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 361
[pid   341] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   341] <... futex resumed>)        = 0
[pid   340] <... futex resumed>)        = 0
[pid   337] <... futex resumed>)        = 0
[pid   293] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   340] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   341] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   337] <... mmap resumed>)         = 0x7f6005c2e000
[pid   293] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   337] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   293] <... openat resumed>)       = 4
[pid   337] <... mprotect resumed>)     = 0
[pid   293] fstat(4,  <unfinished ...>
[pid   337] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4,  <unfinished ...>
[pid   337] <... clone resumed>, parent_tid=[362], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 362
[pid   293] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   337] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] getdents64(4,  <unfinished ...>
[pid   337] <... futex resumed>)        = 0
[pid   293] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   337] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] close(4)                    = 0
[pid   293] rmdir("./1/file1")          = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3)                    = 0
[pid   293] rmdir("./1")                = 0
[pid   293] mkdir("./2", 0777)          = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 363
[   20.208580][  T349] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.222916][  T349] ext4 filesystem being mounted at /root/syzkaller.6GNILo/1/file1 supports timestamps until 2038 (0x7fffffff)
[   20.223849][  T347] EXT4-fs (loop2): 1 orphan inode deleted
[   20.236706][  T346] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
./strace-static-x86_64: Process 363 attached
./strace-static-x86_64: Process 362 attached
./strace-static-x86_64: Process 361 attached
[pid   349] <... mount resumed>)        = 0
[pid   346] <... mount resumed>)        = 0
[pid   346] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   349] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   346] chdir("./file1")            = 0
[pid   349] chdir("./file1")            = 0
[pid   346] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   349] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   346] <... ioctl resumed>)        = 0
[pid   349] <... ioctl resumed>)        = 0
[pid   349] close(4 <unfinished ...>
[pid   346] close(4 <unfinished ...>
[pid   349] <... close resumed>)        = 0
[pid   346] <... close resumed>)        = 0
[pid   346] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   349] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   345] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   346] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   349] <... futex resumed>)        = 1
[pid   349] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   349] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   345] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   345] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   345] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[364], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 364
[pid   345] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   349] <... futex resumed>)        = 1
[pid   349] fallocate(4, 0, 35143, 7)   = 0
[pid   349] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   349] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   363] set_robust_list(0x5555572875e0, 24) = 0
[pid   363] chdir("./2")                = 0
[pid   363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   363] setpgid(0, 0)               = 0
[pid   363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   363] write(3, "1000", 4)         = 4
[pid   363] close(3)                    = 0
[pid   363] symlink("/dev/binderfs", "./binderfs") = 0
[pid   363] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   363] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   363] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[365], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 365
[pid   363] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   363] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   362] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   362] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL) = 0
[pid   362] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   337] <... futex resumed>)        = 0
[pid   362] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   337] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] <... futex resumed>)        = 0
[pid   337] <... futex resumed>)        = 1
[pid   341] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   337] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   341] <... open resumed>)         = 5
[pid   341] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   337] <... futex resumed>)        = 0
[pid   341] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   337] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   337] <... futex resumed>)        = 0
[pid   341] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   337] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   341] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   341] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   337] <... futex resumed>)        = 0
[pid   341] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   337] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   337] <... futex resumed>)        = 0
[pid   341] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   337] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   341] <... write resumed>)        = 262144
[pid   341] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   337] <... futex resumed>)        = 0
[pid   341] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   337] exit_group(0 <unfinished ...>
[pid   362] <... futex resumed>)        = ?
[pid   341] <... futex resumed>)        = ?
[pid   337] <... exit_group resumed>)   = ?
[pid   362] +++ exited with 0 +++
[pid   361] <... set_robust_list resumed>) = 0
[pid   341] +++ exited with 0 +++
[pid   339] <... futex resumed>)        = 0
[pid   337] +++ exited with 0 +++
./strace-static-x86_64: Process 364 attached
[pid   364] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   364] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL) = 0
[pid   364] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   345] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   345] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   349] <... futex resumed>)        = 0
[pid   349] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   349] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   345] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   349] <... futex resumed>)        = 1
[pid   349] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   349] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   345] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   345] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   349] <... futex resumed>)        = 1
[pid   349] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   361] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   339] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=337, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   361] <... mount resumed>)        = 0
[pid   346] <... futex resumed>)        = 0
[pid   339] <... futex resumed>)        = 1
[pid   298] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   361] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] <... futex resumed>)        = 1
[pid   298] <... restart_syscall resumed>) = 0
[pid   340] <... futex resumed>)        = 0
[pid   361] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   346] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   340] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = 0
[pid   340] <... futex resumed>)        = 1
[pid   342] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   340] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   342] <... open resumed>)         = 5
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   342] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   346] <... open resumed>)         = 4
[pid   342] <... futex resumed>)        = 1
[pid   340] <... futex resumed>)        = 0
[pid   298] <... openat resumed>)       = 3
[pid   346] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] fstat(3,  <unfinished ...>
[pid   346] <... futex resumed>)        = 1
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   340] <... futex resumed>)        = 0
[pid   339] <... futex resumed>)        = 0
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   346] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   342] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   340] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   339] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   342] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   339] <... futex resumed>)        = 0
[pid   298] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   346] <... fallocate resumed>)    = 0
[pid   342] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   346] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   340] <... futex resumed>)        = 0
[pid   339] <... futex resumed>)        = 0
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   346] <... futex resumed>)        = 0
[pid   342] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   298] lstat("./1/binderfs",  <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   340] <... futex resumed>)        = 0
[pid   339] <... mmap resumed>)         = 0x7f6005c2e000
[pid   342] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   340] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   339] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   346] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   339] <... mprotect resumed>)     = 0
[   20.260671][  T346] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/1/file1 supports timestamps until 2038 (0x7fffffff)
[   20.268551][  T347] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   298] unlink("./1/binderfs"./strace-static-x86_64: Process 365 attached
 <unfinished ...>
[pid   364] <... futex resumed>)        = 1
[pid   349] <... write resumed>)        = 262144
[pid   342] <... write resumed>)        = 262144
[pid   339] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   298] <... unlink resumed>)       = 0
[pid   365] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   364] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   349] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   349] <... futex resumed>)        = 1
[pid   342] <... futex resumed>)        = 1
[pid   340] <... futex resumed>)        = 0
[pid   339] <... clone resumed>, parent_tid=[366], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 366
[pid   349] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   345] exit_group(0 <unfinished ...>
[pid   342] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] exit_group(0 <unfinished ...>
[pid   339] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... exit_group resumed>)   = ?
[pid   361] <... futex resumed>)        = ?
[pid   342] <... futex resumed>)        = ?
[pid   340] <... exit_group resumed>)   = ?
[pid   339] <... futex resumed>)        = 0
[pid   361] +++ exited with 0 +++
[pid   347] <... mount resumed>)        = 0
[pid   347] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   347] chdir("./file1" <unfinished ...>
[pid   342] +++ exited with 0 +++
[pid   340] +++ exited with 0 +++
[pid   347] <... chdir resumed>)        = 0
[pid   339] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=340, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   296] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   349] <... futex resumed>)        = ?
[pid   296] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   347] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   347] <... ioctl resumed>)        = 0
[pid   347] close(4)                    = 0
[pid   347] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   344] <... futex resumed>)        = 0
[pid   344] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   347] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   296] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(3,  <unfinished ...>
[pid   365] <... set_robust_list resumed>) = 0
[pid   296] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   349] +++ exited with 0 +++
[pid   296] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   364] <... futex resumed>)        = 230
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] lstat("./1/binderfs",  <unfinished ...>
[pid   365] memfd_create("syzkaller", 0) = 3
[pid   364] +++ exited with 0 +++
[pid   345] +++ exited with 0 +++
[pid   296] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] unlink("./1/binderfs" <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=345, si_uid=0, si_status=0, si_utime=0, si_stime=7} ---
[pid   296] <... unlink resumed>)       = 0
[pid   296] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   294] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   365] <... mmap resumed>)         = 0x7f6005c0f000
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./1/binderfs")      = 0
[pid   294] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   365] munmap(0x7f6005c0f000, 262144) = 0
[pid   365] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   365] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 366 attached
 <unfinished ...>
[pid   347] <... open resumed>)         = 4
[pid   347] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   344] <... futex resumed>)        = 0
[pid   344] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   344] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   344] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[367], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 367
[pid   344] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   347] fallocate(4, 0, 35143, 7)   = 0
[pid   347] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   347] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   366] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   366] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL) = 0
[pid   366] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] <... futex resumed>)        = 0
[pid   339] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   346] <... futex resumed>)        = 0
[pid   339] <... futex resumed>)        = 1
[pid   346] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   339] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   346] <... open resumed>)         = 5
[pid   346] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   339] <... futex resumed>)        = 0
[pid   346] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   339] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   346] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = 0
[pid   346] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   339] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   346] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   346] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   339] <... futex resumed>)        = 0
[pid   346] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   339] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   346] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = 0
[pid   346] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   339] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 367 attached
 <unfinished ...>
[pid   366] <... futex resumed>)        = 1
[pid   365] <... ioctl resumed>)        = 0
[pid   365] close(3)                    = 0
[pid   365] mkdir("./file1", 0777)      = 0
[pid   365] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   367] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   346] <... write resumed>)        = 262144
[pid   366] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   346] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   367] <... set_robust_list resumed>) = 0
[pid   346] <... futex resumed>)        = 1
[pid   339] <... futex resumed>)        = 0
[pid   346] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   339] exit_group(0 <unfinished ...>
[pid   346] <... futex resumed>)        = ?
[pid   339] <... exit_group resumed>)   = ?
[pid   367] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   366] <... futex resumed>)        = ?
[pid   366] +++ exited with 0 +++
[pid   367] <... mount resumed>)        = 0
[pid   367] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   367] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] <... futex resumed>)        = 0
[pid   346] +++ exited with 0 +++
[pid   344] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] +++ exited with 0 +++
[pid   344] <... futex resumed>)        = 1
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=339, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   344] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   347] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   347] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   344] <... futex resumed>)        = 0
[pid   347] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   344] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   344] <... futex resumed>)        = 0
[pid   347] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   344] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   344] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   347] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   344] <... futex resumed>)        = 0
[pid   347] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   344] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... restart_syscall resumed>) = 0
[pid   297] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(3,  <unfinished ...>
[pid   347] <... write resumed>)        = 262144
[pid   297] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   347] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   347] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   297] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   344] <... futex resumed>)        = 0
[pid   297] lstat("./1/binderfs",  <unfinished ...>
[pid   344] exit_group(0 <unfinished ...>
[pid   297] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./1/binderfs")      = 0
[pid   297] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   344] <... exit_group resumed>)   = ?
[pid   367] <... futex resumed>)        = ?
[pid   367] +++ exited with 0 +++
[pid   347] <... futex resumed>)        = ?
[pid   347] +++ exited with 0 +++
[pid   344] +++ exited with 0 +++
[pid   298] <... umount2 resumed>)      = 0
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=344, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[   20.302214][  T347] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/1/file1 supports timestamps until 2038 (0x7fffffff)
[   20.328646][  T365] loop0: detected capacity change from 0 to 512
[   20.346674][  T365] EXT4-fs (loop0): 1 orphan inode deleted
[pid   298] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] lstat("./1/file1",  <unfinished ...>
[pid   295] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... openat resumed>)       = 3
[pid   298] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] fstat(3,  <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] getdents64(3,  <unfinished ...>
[pid   298] <... openat resumed>)       = 4
[pid   295] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] fstat(4,  <unfinished ...>
[pid   295] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] getdents64(4,  <unfinished ...>
[pid   295] lstat("./1/binderfs",  <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   298] getdents64(4,  <unfinished ...>
[pid   295] unlink("./1/binderfs" <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] <... unlink resumed>)       = 0
[pid   298] close(4 <unfinished ...>
[pid   295] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   298] rmdir("./1/file1")          = 0
[pid   298] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   298] close(3)                    = 0
[pid   298] rmdir("./1")                = 0
[pid   298] mkdir("./2", 0777)          = 0
[pid   365] <... mount resumed>)        = 0
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   298] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   298] close(3 <unfinished ...>
[pid   365] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   294] <... umount2 resumed>)      = 0
[pid   294] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] <... umount2 resumed>)      = 0
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] lstat("./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   365] <... openat resumed>)       = 3
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   296] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 370
[pid   296] lstat("./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... openat resumed>)       = 4
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] fstat(4,  <unfinished ...>
[pid   296] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... openat resumed>)       = 4
[pid   294] getdents64(4,  <unfinished ...>
[pid   296] fstat(4,  <unfinished ...>
[pid   294] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] close(4 <unfinished ...>
[pid   294] getdents64(4,  <unfinished ...>
[pid   296] <... close resumed>)        = 0
[pid   294] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] rmdir("./1/file1")          = 0
[pid   294] close(4 <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] close(3)                    = 0
[pid   296] rmdir("./1")                = 0
[pid   294] rmdir("./1/file1" <unfinished ...>
[pid   296] mkdir("./2", 0777)          = 0
[pid   294] <... rmdir resumed>)        = 0
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   294] getdents64(3,  <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   294] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3 <unfinished ...>
[pid   296] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   294] rmdir("./1" <unfinished ...>
[pid   296] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   296] close(3)                    = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... rmdir resumed>)        = 0
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 371
[pid   294] mkdir("./2", 0777./strace-static-x86_64: Process 370 attached
 <unfinished ...>
[pid   370] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   294] <... mkdir resumed>)        = 0
[pid   370] <... set_robust_list resumed>) = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   294] close(3 <unfinished ...>
[pid   370] chdir("./2" <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   370] <... chdir resumed>)        = 0
[pid   370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   370] setpgid(0, 0)               = 0
[pid   370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 372
[pid   370] <... openat resumed>)       = 3
[pid   370] write(3, "1000", 4)         = 4
[pid   370] close(3)                    = 0
[pid   370] symlink("/dev/binderfs", "./binderfs") = 0
[pid   370] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   370] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   370] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   365] chdir("./file1" <unfinished ...>
[pid   370] <... clone resumed>, parent_tid=[373], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 373
[pid   370] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 372 attached
 <unfinished ...>
[pid   372] set_robust_list(0x5555572875e0, 24) = 0
[pid   372] chdir("./2" <unfinished ...>
[pid   365] <... chdir resumed>)        = 0
[pid   372] <... chdir resumed>)        = 0
[pid   372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   372] setpgid(0, 0)               = 0
[pid   372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   372] write(3, "1000", 4)         = 4
[pid   372] close(3)                    = 0
[pid   372] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   365] ioctl(4, LOOP_CLR_FD)       = 0
[pid   365] close(4 <unfinished ...>
[pid   372] <... symlink resumed>)      = 0
[pid   372] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   365] <... close resumed>)        = 0
[pid   372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   365] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   363] <... futex resumed>)        = 0
[pid   365] <... futex resumed>)        = 1
[pid   363] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   365] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   363] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   372] <... mmap resumed>)         = 0x7f600e00f000
[pid   372] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   372] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[374], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 374
[pid   372] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 374 attached
 <unfinished ...>
[pid   374] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   365] <... open resumed>)         = 4
[pid   365] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... set_robust_list resumed>) = 0
[pid   365] <... futex resumed>)        = 1
[pid   363] <... futex resumed>)        = 0
[pid   363] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   363] <... futex resumed>)        = 0
[pid   363] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   374] memfd_create("syzkaller", 0 <unfinished ...>
[pid   363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   363] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   365] <... fallocate resumed>)    = 0
[pid   363] <... mprotect resumed>)     = 0
[pid   363] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   365] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... memfd_create resumed>) = 3
[pid   365] <... futex resumed>)        = 0
[pid   363] <... clone resumed>, parent_tid=[375], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 375
[pid   363] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   363] <... futex resumed>)        = 0
[pid   363] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 371 attached
./strace-static-x86_64: Process 373 attached
) = 0x7f6005c0f000
[pid   373] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   373] memfd_create("syzkaller", 0 <unfinished ...>
[pid   371] set_robust_list(0x5555572875e0, 24) = 0
[pid   371] chdir("./2" <unfinished ...>
[pid   373] <... memfd_create resumed>) = 3
[pid   371] <... chdir resumed>)        = 0
[pid   371] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   371] <... prctl resumed>)        = 0
[pid   373] <... mmap resumed>)         = 0x7f6005c0f000
[pid   371] setpgid(0, 0)               = 0
[pid   371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   374] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   371] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 375 attached
[pid   375] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   375] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   371] close(3 <unfinished ...>
[pid   375] <... mount resumed>)        = 0
[pid   375] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   363] <... futex resumed>)        = 0
[pid   375] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   363] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   365] <... futex resumed>)        = 0
[pid   365] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   363] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   365] <... open resumed>)         = 5
[pid   365] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   363] <... futex resumed>)        = 0
[pid   365] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   363] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   363] <... futex resumed>)        = 0
[pid   365] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   363] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   365] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   365] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   363] <... futex resumed>)        = 0
[pid   365] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   363] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   363] <... futex resumed>)        = 0
[pid   365] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   363] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   374] <... write resumed>)        = 262144
[pid   374] munmap(0x7f6005c0f000, 262144) = 0
[pid   374] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   374] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   371] <... close resumed>)        = 0
[pid   365] <... write resumed>)        = 262144
[pid   365] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   363] <... futex resumed>)        = 0
[pid   365] <... futex resumed>)        = 1
[pid   365] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   363] exit_group(0 <unfinished ...>
[pid   374] <... ioctl resumed>)        = 0
[pid   363] <... exit_group resumed>)   = ?
[pid   375] <... futex resumed>)        = ?
[pid   365] <... futex resumed>)        = ?
[pid   374] close(3)                    = 0
[pid   375] +++ exited with 0 +++
[pid   374] mkdir("./file1", 0777)      = 0
[pid   374] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   365] +++ exited with 0 +++
[pid   363] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   293] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   293] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   293] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./2/binderfs")      = 0
[pid   293] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   373] <... write resumed>)        = 262144
[pid   373] munmap(0x7f6005c0f000, 262144) = 0
[pid   373] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[   20.352973][  T365] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.364025][  T365] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/2/file1 supports timestamps until 2038 (0x7fffffff)
[   20.397957][  T374] loop1: detected capacity change from 0 to 512
[pid   373] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   371] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   373] <... ioctl resumed>)        = 0
[pid   373] close(3)                    = 0
[pid   373] mkdir("./file1", 0777 <unfinished ...>
[pid   371] <... symlink resumed>)      = 0
[pid   371] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... mkdir resumed>)        = 0
[pid   373] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   371] <... futex resumed>)        = 0
[pid   371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   371] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   371] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[376], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 376
[pid   295] <... umount2 resumed>)      = 0
[pid   371] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   371] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 376 attached
 <unfinished ...>
[pid   376] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   376] memfd_create("syzkaller", 0) = 3
[pid   376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   376] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   376] munmap(0x7f6005c0f000, 262144) = 0
[pid   376] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   376] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   297] <... umount2 resumed>)      = 0
[pid   295] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] lstat("./1/file1",  <unfinished ...>
[pid   297] lstat("./1/file1",  <unfinished ...>
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] umount2("./1/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   376] <... ioctl resumed>)        = 0
[pid   376] close(3)                    = 0
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] <... openat resumed>)       = 4
[pid   295] <... openat resumed>)       = 4
[pid   297] fstat(4,  <unfinished ...>
[pid   295] fstat(4,  <unfinished ...>
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(4,  <unfinished ...>
[pid   295] getdents64(4,  <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   297] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   297] close(4)                    = 0
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   297] rmdir("./1/file1" <unfinished ...>
[pid   295] close(4 <unfinished ...>
[pid   376] mkdir("./file1", 0777 <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   297] getdents64(3,  <unfinished ...>
[pid   295] rmdir("./1/file1" <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] <... rmdir resumed>)        = 0
[pid   297] close(3 <unfinished ...>
[pid   295] getdents64(3,  <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] rmdir("./1" <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   297] mkdir("./2", 0777 <unfinished ...>
[pid   295] rmdir("./1" <unfinished ...>
[pid   376] <... mkdir resumed>)        = 0
[pid   376] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   297] <... mkdir resumed>)        = 0
[pid   295] <... rmdir resumed>)        = 0
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   295] mkdir("./2", 0777 <unfinished ...>
[pid   297] <... openat resumed>)       = 3
[pid   295] <... mkdir resumed>)        = 0
[pid   297] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   297] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] close(3 <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   297] <... close resumed>)        = 0
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 378
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 380
./strace-static-x86_64: Process 380 attached
[pid   380] set_robust_list(0x5555572875e0, 24) = 0
[pid   380] chdir("./2")                = 0
./strace-static-x86_64: Process 378 attached
[pid   380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   380] setpgid(0, 0)               = 0
[pid   380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   380] write(3, "1000", 4 <unfinished ...>
[pid   378] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   380] <... write resumed>)        = 4
[pid   380] close(3)                    = 0
[pid   378] <... set_robust_list resumed>) = 0
[pid   380] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   378] chdir("./2")                = 0
[pid   378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   378] setpgid(0, 0)               = 0
[pid   378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   380] <... symlink resumed>)      = 0
[pid   378] write(3, "1000", 4 <unfinished ...>
[pid   380] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] <... write resumed>)        = 4
[pid   378] close(3)                    = 0
[pid   378] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   378] <... symlink resumed>)      = 0
[pid   378] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   378] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[   20.409247][  T373] loop5: detected capacity change from 0 to 512
[   20.425457][  T376] loop3: detected capacity change from 0 to 512
[   20.443159][  T374] EXT4-fs (loop1): 1 orphan inode deleted
[   20.450731][  T374] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   380] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   378] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   380] <... mprotect resumed>)     = 0
[pid   293] <... umount2 resumed>)      = 0
[pid   293] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   293] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] close(4)                    = 0
[pid   293] rmdir("./2/file1")          = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3)                    = 0
[pid   293] rmdir("./2")                = 0
[pid   293] mkdir("./3", 0777)          = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 385
[pid   378] <... clone resumed>, parent_tid=[386], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 386
[pid   378] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   380] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   374] <... mount resumed>)        = 0
[pid   380] <... clone resumed>, parent_tid=[387], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 387
[pid   380] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   380] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 385 attached
./strace-static-x86_64: Process 386 attached
 <unfinished ...>
[pid   386] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   386] memfd_create("syzkaller", 0 <unfinished ...>
[pid   385] set_robust_list(0x5555572875e0, 24) = 0
[pid   385] chdir("./3" <unfinished ...>
[pid   386] <... memfd_create resumed>) = 3
[pid   385] <... chdir resumed>)        = 0
[pid   385] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   385] <... prctl resumed>)        = 0
[pid   386] <... mmap resumed>)         = 0x7f6005c0f000
[pid   385] setpgid(0, 0)               = 0
[pid   385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 387 attached
 <unfinished ...>
[pid   387] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   387] memfd_create("syzkaller", 0 <unfinished ...>
[pid   385] <... openat resumed>)       = 3
[pid   387] <... memfd_create resumed>) = 3
[pid   385] write(3, "1000", 4)         = 4
[pid   387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   385] close(3)                    = 0
[pid   385] symlink("/dev/binderfs", "./binderfs") = 0
[   20.468405][  T376] EXT4-fs (loop3): 1 orphan inode deleted
[   20.472816][  T374] ext4 filesystem being mounted at /root/syzkaller.6GNILo/2/file1 supports timestamps until 2038 (0x7fffffff)
[   20.484042][  T376] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.498895][  T373] EXT4-fs (loop5): 1 orphan inode deleted
[   20.505104][  T373] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   374] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   386] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   385] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   385] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   385] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[388], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 388
[pid   385] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   385] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   386] <... write resumed>)        = 262144
[pid   386] munmap(0x7f6005c0f000, 262144) = 0
[pid   387] <... write resumed>)        = 262144
[pid   386] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   386] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   387] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   374] <... openat resumed>)       = 3
[pid   373] <... mount resumed>)        = 0
[pid   374] chdir("./file1")            = 0
[pid   374] ioctl(4, LOOP_CLR_FD)       = 0
[pid   374] close(4)                    = 0
[pid   374] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   387] <... munmap resumed>)       = 0
[pid   374] <... futex resumed>)        = 1
[pid   373] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   372] <... futex resumed>)        = 0
[pid   387] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   373] <... openat resumed>)       = 3
[pid   387] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   374] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   372] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... open resumed>)         = 4
[pid   372] <... futex resumed>)        = 0
[pid   374] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   372] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   374] <... futex resumed>)        = 0
[pid   372] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   374] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   372] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... fallocate resumed>)    = 0
[pid   372] <... futex resumed>)        = 0
[pid   374] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   372] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... futex resumed>)        = 0
[pid   372] <... futex resumed>)        = 0
[pid   374] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   372] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   372] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[389], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 389
[pid   372] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 389 attached
 <unfinished ...>
[pid   389] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   389] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL) = 0
[pid   389] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   372] <... futex resumed>)        = 0
[pid   373] chdir("./file1" <unfinished ...>
[pid   372] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... futex resumed>)        = 0
[pid   372] <... futex resumed>)        = 1
./strace-static-x86_64: Process 388 attached
[pid   374] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   373] <... chdir resumed>)        = 0
[pid   372] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   374] <... open resumed>)         = 5
[pid   373] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   388] <... set_robust_list resumed>) = 0
[pid   374] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... ioctl resumed>)        = 0
[pid   388] memfd_create("syzkaller", 0 <unfinished ...>
[pid   374] <... futex resumed>)        = 1
[pid   373] close(4 <unfinished ...>
[pid   372] <... futex resumed>)        = 0
[pid   388] <... memfd_create resumed>) = 3
[pid   387] <... ioctl resumed>)        = 0
[pid   374] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   373] <... close resumed>)        = 0
[pid   372] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   374] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   372] <... futex resumed>)        = 0
[pid   374] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   372] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   374] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   374] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   372] <... futex resumed>)        = 0
[pid   374] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   372] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   372] <... futex resumed>)        = 0
[pid   374] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   372] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   374] <... write resumed>)        = 262144
[pid   374] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   372] <... futex resumed>)        = 0
[pid   374] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   372] exit_group(0 <unfinished ...>
[pid   374] <... futex resumed>)        = ?
[pid   372] <... exit_group resumed>)   = ?
[pid   374] +++ exited with 0 +++
[pid   387] close(3)                    = 0
[pid   387] mkdir("./file1", 0777)      = 0
[pid   387] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   388] <... mmap resumed>)         = 0x7f6005c0f000
[pid   373] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] <... mount resumed>)        = 0
[pid   389] <... futex resumed>)        = ?
[pid   388] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   376] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   373] <... futex resumed>)        = 1
[pid   370] <... futex resumed>)        = 0
[pid   373] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   370] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] <... write resumed>)        = 262144
[pid   389] +++ exited with 0 +++
[pid   388] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   376] <... openat resumed>)       = 3
[pid   373] <... open resumed>)         = 4
[pid   372] +++ exited with 0 +++
[pid   388] <... munmap resumed>)       = 0
[pid   373] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=372, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   388] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   376] chdir("./file1" <unfinished ...>
[pid   373] <... futex resumed>)        = 1
[pid   370] <... futex resumed>)        = 0
[   20.516152][  T373] ext4 filesystem being mounted at /root/syzkaller.kumyKI/2/file1 supports timestamps until 2038 (0x7fffffff)
[   20.519815][  T386] loop4: detected capacity change from 0 to 512
[   20.536974][  T387] loop2: detected capacity change from 0 to 512
[   20.551347][  T376] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/2/file1 supports timestamps until 2038 (0x7fffffff)
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   388] <... openat resumed>)       = 4
[pid   376] <... chdir resumed>)        = 0
[pid   373] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   370] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   388] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   373] <... fallocate resumed>)    = 0
[pid   370] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   294] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   388] <... ioctl resumed>)        = 0
[pid   376] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   373] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   373] <... futex resumed>)        = 0
[pid   370] <... mmap resumed>)         = 0x7f6005c2e000
[pid   294] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   373] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   370] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   370] <... mprotect resumed>)     = 0
[pid   294] fstat(3,  <unfinished ...>
[pid   370] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3,  <unfinished ...>
[pid   370] <... clone resumed>, parent_tid=[393], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 393
[pid   294] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   370] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   370] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./2/binderfs" <unfinished ...>
[pid   388] close(3 <unfinished ...>
[pid   376] <... ioctl resumed>)        = 0
[pid   294] <... unlink resumed>)       = 0
[pid   388] <... close resumed>)        = 0
[pid   376] close(4 <unfinished ...>
[pid   294] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   388] mkdir("./file1", 0777 <unfinished ...>
[pid   376] <... close resumed>)        = 0
[pid   376] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 393 attached
) = 1
[pid   371] <... futex resumed>)        = 0
[pid   371] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   371] <... futex resumed>)        = 0
[pid   393] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   371] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] <... mkdir resumed>)        = 0
[pid   376] <... open resumed>)         = 4
[pid   388] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   376] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   371] <... futex resumed>)        = 0
[pid   393] <... set_robust_list resumed>) = 0
[pid   376] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   371] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   371] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   393] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   393] <... mount resumed>)        = 0
[pid   376] <... fallocate resumed>)    = 0
[pid   371] <... mmap resumed>)         = 0x7f6005c2e000
[pid   393] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   371] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   393] <... futex resumed>)        = 1
[pid   376] <... futex resumed>)        = 0
[pid   371] <... mprotect resumed>)     = 0
[pid   370] <... futex resumed>)        = 0
[pid   393] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   376] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   371] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   370] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... futex resumed>)        = 0
[pid   370] <... futex resumed>)        = 1
[pid   370] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   371] <... clone resumed>, parent_tid=[396], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 396
[pid   373] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   371] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... futex resumed>)        = 1
[pid   371] <... futex resumed>)        = 0
[pid   370] <... futex resumed>)        = 0
[pid   370] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   373] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   371] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   370] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   373] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   370] <... futex resumed>)        = 0
[pid   373] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   370] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   386] <... ioctl resumed>)        = 0
[pid   386] close(3)                    = 0
[pid   386] mkdir("./file1", 0777)      = 0
[pid   386] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   373] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[   20.574633][  T388] loop0: detected capacity change from 0 to 512
[   20.593798][  T388] EXT4-fs (loop0): 1 orphan inode deleted
[   20.602544][  T387] EXT4-fs (loop2): 1 orphan inode deleted
[   20.608644][  T387] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   370] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 396 attached
 <unfinished ...>
[pid   396] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   396] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL) = 0
[pid   396] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   371] <... futex resumed>)        = 0
[pid   396] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   371] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] <... futex resumed>)        = 0
[pid   373] <... write resumed>)        = 262144
[pid   371] <... futex resumed>)        = 1
[pid   294] <... umount2 resumed>)      = 0
[pid   376] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   373] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   371] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   376] <... open resumed>)         = 5
[pid   373] <... futex resumed>)        = 1
[pid   370] <... futex resumed>)        = 0
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   376] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   370] exit_group(0 <unfinished ...>
[pid   294] lstat("./2/file1",  <unfinished ...>
[pid   393] <... futex resumed>)        = ?
[pid   376] <... futex resumed>)        = 1
[pid   373] <... futex resumed>)        = ?
[pid   371] <... futex resumed>)        = 0
[pid   370] <... exit_group resumed>)   = ?
[pid   294] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   393] +++ exited with 0 +++
[pid   388] <... mount resumed>)        = 0
[pid   387] <... mount resumed>)        = 0
[pid   376] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   373] +++ exited with 0 +++
[pid   371] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   370] +++ exited with 0 +++
[pid   294] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   388] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   387] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=370, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   388] <... openat resumed>)       = 3
[pid   387] <... openat resumed>)       = 3
[pid   388] chdir("./file1" <unfinished ...>
[pid   387] chdir("./file1" <unfinished ...>
[pid   388] <... chdir resumed>)        = 0
[pid   388] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   387] <... chdir resumed>)        = 0
[pid   376] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   371] <... futex resumed>)        = 0
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   388] <... ioctl resumed>)        = 0
[pid   298] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   388] close(4 <unfinished ...>
[pid   387] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   388] <... close resumed>)        = 0
[pid   387] <... ioctl resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   388] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   387] close(4 <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   388] <... futex resumed>)        = 1
[pid   387] <... close resumed>)        = 0
[pid   385] <... futex resumed>)        = 0
[pid   298] fstat(3,  <unfinished ...>
[pid   388] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   387] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   388] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   387] <... futex resumed>)        = 1
[pid   385] <... futex resumed>)        = 0
[pid   298] getdents64(3,  <unfinished ...>
[pid   388] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   387] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   385] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   388] <... open resumed>)         = 4
[pid   380] <... futex resumed>)        = 0
[pid   376] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   371] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   388] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   380] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   388] <... futex resumed>)        = 1
[pid   385] <... futex resumed>)        = 0
[pid   298] lstat("./2/binderfs",  <unfinished ...>
[pid   388] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   385] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   388] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   385] <... futex resumed>)        = 0
[pid   298] unlink("./2/binderfs" <unfinished ...>
[pid   388] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   385] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... unlink resumed>)       = 0
[pid   388] <... fallocate resumed>)    = 0
[pid   387] <... futex resumed>)        = 0
[pid   385] <... futex resumed>)        = 0
[pid   380] <... futex resumed>)        = 1
[pid   376] <... futex resumed>)        = 0
[pid   371] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   298] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... openat resumed>)       = 4
[pid   388] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   387] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   380] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   376] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   371] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] <... futex resumed>)        = 0
[pid   385] <... mmap resumed>)         = 0x7f6005c2e000
[pid   388] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   385] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   385] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   376] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   371] <... futex resumed>)        = 0
[pid   294] fstat(4,  <unfinished ...>
[pid   385] <... clone resumed>, parent_tid=[400], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 400
[pid   385] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   371] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   385] <... futex resumed>)        = 0
[pid   385] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   387] <... open resumed>)         = 4
[pid   376] <... write resumed>)        = 262144
[pid   298] <... umount2 resumed>)      = 0
[pid   294] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./2/file1")          = 0
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3)                    = 0
[pid   294] rmdir("./2")                = 0
[pid   294] mkdir("./3", 0777)          = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 401
[pid   376] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   387] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   376] <... futex resumed>)        = 1
[pid   371] <... futex resumed>)        = 0
[pid   387] <... futex resumed>)        = 1
[pid   380] <... futex resumed>)        = 0
[pid   376] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   371] exit_group(0 <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   396] <... futex resumed>)        = -1 EINVAL (Invalid argument)
[pid   387] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   380] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] +++ exited with 0 +++
[pid   371] <... exit_group resumed>)   = ?
[pid   380] <... futex resumed>)        = 0
[pid   387] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   380] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] <... futex resumed>)        = ?
[pid   298] lstat("./2/file1",  <unfinished ...>
[pid   387] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   380] <... futex resumed>)        = 0
[pid   380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   387] <... fallocate resumed>)    = 0
[pid   380] <... mmap resumed>)         = 0x7f6005c2e000
[pid   376] +++ exited with 0 +++
[pid   371] +++ exited with 0 +++
[pid   298] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   387] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   380] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=371, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   380] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   296] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   380] <... clone resumed>, parent_tid=[402], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 402
[pid   380] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   380] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   387] <... futex resumed>)        = 0
[pid   296] <... restart_syscall resumed>) = 0
[pid   296] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   296] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] lstat("./2/binderfs",  <unfinished ...>
[pid   298] <... openat resumed>)       = 4
[pid   296] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
./strace-static-x86_64: Process 400 attached
[pid   400] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   400] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   296] unlink("./2/binderfs" <unfinished ...>
[pid   298] fstat(4,  <unfinished ...>
[pid   400] <... mount resumed>)        = 0
[pid   400] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... unlink resumed>)       = 0
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   385] <... futex resumed>)        = 0
[pid   385] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] <... futex resumed>)        = 0
[pid   385] <... futex resumed>)        = 1
[pid   388] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   385] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] <... open resumed>)         = 5
[pid   388] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   385] <... futex resumed>)        = 0
[pid   388] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   385] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   385] <... futex resumed>)        = 0
[pid   388] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] <... futex resumed>)        = 0
[pid   385] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   388] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   385] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   387] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   385] <... futex resumed>)        = 0
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   385] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   400] <... futex resumed>)        = 1
[pid   400] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   388] <... write resumed>)        = 262144
[pid   298] getdents64(4,  <unfinished ...>
[pid   388] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   388] <... futex resumed>)        = 1
[pid   385] <... futex resumed>)        = 0
[pid   298] close(4 <unfinished ...>
[pid   388] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   385] exit_group(0 <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   388] <... futex resumed>)        = ?
[pid   385] <... exit_group resumed>)   = ?
[pid   298] rmdir("./2/file1" <unfinished ...>
[pid   388] +++ exited with 0 +++
[pid   298] <... rmdir resumed>)        = 0
[   20.620928][  T388] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.631324][  T387] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/2/file1 supports timestamps until 2038 (0x7fffffff)
[   20.632423][  T388] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/3/file1 supports timestamps until 2038 (0x7fffffff)
[   20.667086][  T386] EXT4-fs (loop4): 1 orphan inode deleted
[pid   298] getdents64(3, ./strace-static-x86_64: Process 402 attached
./strace-static-x86_64: Process 401 attached
 <unfinished ...>
[pid   400] <... futex resumed>)        = ?
[pid   298] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   298] close(3)                    = 0
[pid   298] rmdir("./2" <unfinished ...>
[pid   402] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   401] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   400] +++ exited with 0 +++
[pid   385] +++ exited with 0 +++
[pid   298] <... rmdir resumed>)        = 0
[pid   402] <... set_robust_list resumed>) = 0
[pid   298] mkdir("./3", 0777 <unfinished ...>
[pid   386] <... mount resumed>)        = 0
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=385, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   401] <... set_robust_list resumed>) = 0
[pid   402] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[pid   401] chdir("./3" <unfinished ...>
[pid   386] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   402] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] <... chdir resumed>)        = 0
[pid   298] <... mkdir resumed>)        = 0
[pid   402] <... futex resumed>)        = 1
[pid   401] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   380] <... futex resumed>)        = 0
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   293] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   402] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   401] <... prctl resumed>)        = 0
[pid   380] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   401] setpgid(0, 0 <unfinished ...>
[pid   387] <... futex resumed>)        = 0
[pid   380] <... futex resumed>)        = 1
[pid   293] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   401] <... setpgid resumed>)      = 0
[pid   387] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   380] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   293] fstat(3,  <unfinished ...>
[pid   401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   387] <... open resumed>)         = 5
[pid   387] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] <... openat resumed>)       = 3
[pid   387] <... futex resumed>)        = 1
[pid   380] <... futex resumed>)        = 0
[pid   293] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./3/binderfs")      = 0
[pid   293] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   380] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   387] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   380] <... futex resumed>)        = 0
[pid   387] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   401] write(3, "1000", 4 <unfinished ...>
[pid   380] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   386] <... openat resumed>)       = 3
[pid   386] chdir("./file1")            = 0
[pid   386] ioctl(4, LOOP_CLR_FD)       = 0
[pid   386] close(4)                    = 0
[pid   386] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   386] <... futex resumed>)        = 1
[pid   387] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   386] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   387] <... futex resumed>)        = 1
[pid   387] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   380] <... futex resumed>)        = 0
[pid   401] <... write resumed>)        = 4
[pid   401] close(3 <unfinished ...>
[pid   387] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   380] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   386] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   380] <... futex resumed>)        = 0
[pid   387] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   401] <... close resumed>)        = 0
[pid   380] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   378] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   378] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[403], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 403
[pid   378] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   386] <... futex resumed>)        = 1
[pid   386] fallocate(4, 0, 35143, 7)   = 0
[pid   386] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   386] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   401] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 403 attached
 <unfinished ...>
[pid   403] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   403] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL) = 0
[pid   403] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   378] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   386] <... futex resumed>)        = 0
[pid   386] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   386] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   386] <... futex resumed>)        = 1
[pid   386] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   296] <... umount2 resumed>)      = 0
[pid   386] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   386] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   386] <... futex resumed>)        = 1
[pid   386] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   403] <... futex resumed>)        = 1
[pid   298] <... openat resumed>)       = 3
[pid   296] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   403] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   387] <... write resumed>)        = 262144
[pid   387] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   387] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   401] <... symlink resumed>)      = 0
[pid   401] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   380] <... futex resumed>)        = 0
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   380] exit_group(0 <unfinished ...>
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   402] <... futex resumed>)        = ?
[pid   380] <... exit_group resumed>)   = ?
[pid   298] close(3 <unfinished ...>
[pid   296] lstat("./2/file1",  <unfinished ...>
[pid   402] +++ exited with 0 +++
[pid   401] <... mmap resumed>)         = 0x7f600e00f000
[pid   401] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   298] <... close resumed>)        = 0
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   401] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   296] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   401] <... clone resumed>, parent_tid=[405], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 405
[pid   401] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   401] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 404
[pid   296] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   387] <... futex resumed>)        = ?
[pid   296] <... openat resumed>)       = 4
[pid   296] fstat(4,  <unfinished ...>
[pid   387] +++ exited with 0 +++
[pid   380] +++ exited with 0 +++
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(4,  <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=380, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   296] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] <... restart_syscall resumed>) = 0
[pid   296] close(4)                    = 0
[pid   296] rmdir("./2/file1" <unfinished ...>
[pid   295] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] <... rmdir resumed>)        = 0
[pid   295] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] fstat(3,  <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... close resumed>)        = 0
[pid   296] rmdir("./2" <unfinished ...>
[pid   295] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] <... rmdir resumed>)        = 0
[pid   295] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] mkdir("./3", 0777 <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] lstat("./2/binderfs",  <unfinished ...>
[pid   296] <... mkdir resumed>)        = 0
[pid   295] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] unlink("./2/binderfs")      = 0
[pid   296] <... openat resumed>)       = 3
[pid   295] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 405 attached
[pid   386] <... write resumed>)        = 262144
[pid   296] close(3)                    = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 404 attached
 <unfinished ...>
[pid   404] set_robust_list(0x5555572875e0, 24) = 0
[pid   404] chdir("./3")                = 0
[pid   404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   404] setpgid(0, 0)               = 0
[pid   404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 406
[pid   404] write(3, "1000", 4)         = 4
[pid   404] close(3)                    = 0
[pid   404] symlink("/dev/binderfs", "./binderfs") = 0
[pid   404] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   404] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   404] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[407], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 407
[pid   404] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   404] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 407 attached
 <unfinished ...>
[pid   407] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   407] memfd_create("syzkaller", 0) = 3
[pid   407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   407] munmap(0x7f6005c0f000, 262144) = 0
[pid   407] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[   20.698391][  T386] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.709792][  T386] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/2/file1 supports timestamps until 2038 (0x7fffffff)
[pid   407] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   386] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   407] <... ioctl resumed>)        = 0
[pid   407] close(3)                    = 0
[pid   407] mkdir("./file1", 0777 <unfinished ...>
[pid   386] <... futex resumed>)        = 1
[pid   378] <... futex resumed>)        = 0
[pid   378] exit_group(0 <unfinished ...>
[pid   403] <... futex resumed>)        = ?
[pid   378] <... exit_group resumed>)   = ?
[pid   403] +++ exited with 0 +++
[pid   407] <... mkdir resumed>)        = 0
[pid   407] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   405] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   405] memfd_create("syzkaller", 0 <unfinished ...>
[pid   386] +++ exited with 0 +++
[pid   378] +++ exited with 0 +++
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=378, si_uid=0, si_status=0, si_utime=0, si_stime=7} ---
[pid   297] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   405] <... memfd_create resumed>) = 3
[pid   405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   297] <... restart_syscall resumed>) = 0
[pid   297] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./2/binderfs")      = 0
[pid   297] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   405] munmap(0x7f6005c0f000, 262144) = 0
[pid   405] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   405] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   405] close(3)                    = 0
[pid   405] mkdir("./file1", 0777)      = 0
[pid   405] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue"./strace-static-x86_64: Process 406 attached
 <unfinished ...>
[pid   406] set_robust_list(0x5555572875e0, 24) = 0
[pid   406] chdir("./3")                = 0
[pid   406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   406] setpgid(0, 0)               = 0
[pid   406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   406] write(3, "1000", 4)         = 4
[pid   406] close(3)                    = 0
[pid   406] symlink("/dev/binderfs", "./binderfs") = 0
[pid   406] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   406] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   406] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[410], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 410
[pid   406] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   406] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 410 attached
 <unfinished ...>
[pid   410] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   410] memfd_create("syzkaller", 0) = 3
[pid   410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   410] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   410] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   293] <... umount2 resumed>)      = 0
[pid   410] <... munmap resumed>)       = 0
[pid   410] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   410] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   293] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   410] close(3)                    = 0
[pid   410] mkdir("./file1", 0777)      = 0
[pid   410] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] lstat("./3/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   293] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] close(4)                    = 0
[pid   293] rmdir("./3/file1")          = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3)                    = 0
[pid   293] rmdir("./3")                = 0
[pid   293] mkdir("./4", 0777)          = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 412
[   20.753013][  T407] loop5: detected capacity change from 0 to 512
[   20.766474][  T405] loop1: detected capacity change from 0 to 512
[   20.780499][  T410] loop3: detected capacity change from 0 to 512
[   20.781223][  T407] EXT4-fs (loop5): 1 orphan inode deleted
[   20.792508][  T407] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
./strace-static-x86_64: Process 412 attached
[pid   412] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   407] <... mount resumed>)        = 0
[pid   412] <... set_robust_list resumed>) = 0
[pid   412] chdir("./4")                = 0
[pid   412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   412] setpgid(0, 0)               = 0
[pid   412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   412] write(3, "1000", 4)         = 4
[pid   412] close(3)                    = 0
[pid   412] symlink("/dev/binderfs", "./binderfs") = 0
[pid   412] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   412] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   412] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[415], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 415
[pid   412] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   412] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   407] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   407] chdir("./file1")            = 0
[pid   407] ioctl(4, LOOP_CLR_FD)       = 0
[pid   407] close(4)                    = 0
[pid   407] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   407] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 415 attached
 <unfinished ...>
[pid   415] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   415] memfd_create("syzkaller", 0) = 3
[pid   415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   415] munmap(0x7f6005c0f000, 262144) = 0
[pid   415] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   415] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   404] <... futex resumed>)        = 0
[pid   297] <... umount2 resumed>)      = 0
[pid   295] <... umount2 resumed>)      = 0
[pid   295] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] lstat("./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] lstat("./2/file1",  <unfinished ...>
[pid   295] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] umount2("./2/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... openat resumed>)       = 4
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] fstat(4,  <unfinished ...>
[pid   415] <... ioctl resumed>)        = 0
[pid   405] <... mount resumed>)        = 0
[pid   404] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   405] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   404] <... futex resumed>)        = 1
[pid   405] <... openat resumed>)       = 3
[pid   404] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] chdir("./file1")            = 0
[pid   405] ioctl(4, LOOP_CLR_FD)       = 0
[pid   405] close(4)                    = 0
[pid   405] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   401] <... futex resumed>)        = 0
[pid   405] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   401] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... open resumed>)         = 4
[pid   401] <... futex resumed>)        = 0
[pid   405] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] <... futex resumed>)        = 0
[pid   401] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   405] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   401] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... fallocate resumed>)    = 0
[pid   401] <... futex resumed>)        = 0
[pid   405] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... futex resumed>)        = 0
[pid   401] <... futex resumed>)        = 0
[pid   405] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   401] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[   20.801044][  T405] EXT4-fs (loop1): 1 orphan inode deleted
[   20.804006][  T407] ext4 filesystem being mounted at /root/syzkaller.kumyKI/3/file1 supports timestamps until 2038 (0x7fffffff)
[   20.809967][  T405] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.829260][  T415] loop0: detected capacity change from 0 to 512
[   20.832580][  T405] ext4 filesystem being mounted at /root/syzkaller.6GNILo/3/file1 supports timestamps until 2038 (0x7fffffff)
[pid   401] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[417], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 417
[pid   401] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   401] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   415] close(3)                    = 0
[pid   415] mkdir("./file1", 0777 <unfinished ...>
[pid   407] <... futex resumed>)        = 0
[pid   297] <... openat resumed>)       = 4
[pid   295] getdents64(4,  <unfinished ...>
[pid   407] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   297] fstat(4,  <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
./strace-static-x86_64: Process 417 attached
[pid   415] <... mkdir resumed>)        = 0
[pid   407] <... open resumed>)         = 4
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   407] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] getdents64(4,  <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   407] <... futex resumed>)        = 1
[pid   404] <... futex resumed>)        = 0
[pid   404] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   407] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   404] <... futex resumed>)        = 0
[pid   297] getdents64(4,  <unfinished ...>
[pid   295] close(4 <unfinished ...>
[pid   407] <... fallocate resumed>)    = 0
[pid   404] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] <... close resumed>)        = 0
[pid   407] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] <... futex resumed>)        = 0
[pid   297] close(4 <unfinished ...>
[pid   295] rmdir("./2/file1" <unfinished ...>
[pid   407] <... futex resumed>)        = 0
[pid   404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   295] <... rmdir resumed>)        = 0
[pid   404] <... mmap resumed>)         = 0x7f6005c2e000
[pid   297] rmdir("./2/file1" <unfinished ...>
[pid   407] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   404] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   295] getdents64(3,  <unfinished ...>
[pid   417] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   415] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   404] <... mprotect resumed>)     = 0
[pid   297] <... rmdir resumed>)        = 0
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   404] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] <... close resumed>)        = 0
[pid   297] close(3 <unfinished ...>
[pid   295] rmdir("./2" <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   410] <... mount resumed>)        = 0
[pid   410] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   297] rmdir("./2" <unfinished ...>
[pid   410] <... openat resumed>)       = 3
[pid   410] chdir("./file1" <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   404] <... clone resumed>, parent_tid=[418], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 418
[pid   404] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   404] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   410] <... chdir resumed>)        = 0
[pid   410] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   295] mkdir("./3", 0777 <unfinished ...>
[pid   297] mkdir("./3", 0777 <unfinished ...>
[pid   410] <... ioctl resumed>)        = 0
[pid   410] close(4 <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   410] <... close resumed>)        = 0
[pid   410] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   406] <... futex resumed>)        = 0
[pid   297] <... mkdir resumed>)        = 0
[pid   406] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   406] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   410] <... futex resumed>)        = 1
[pid   410] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   410] <... open resumed>)         = 4
[pid   410] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   406] <... futex resumed>)        = 0
[pid   406] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   406] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   406] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   406] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[419], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 419
[pid   406] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   406] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   410] <... futex resumed>)        = 1
[pid   410] fallocate(4, 0, 35143, 7)   = 0
[pid   410] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   410] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   297] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   297] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] close(3 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 421
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 420
./strace-static-x86_64: Process 420 attached
[pid   420] set_robust_list(0x5555572875e0, 24) = 0
[pid   420] chdir("./3")                = 0
[pid   420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   420] setpgid(0, 0)               = 0
[pid   420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   420] write(3, "1000", 4)         = 4
[pid   420] close(3)                    = 0
[pid   420] symlink("/dev/binderfs", "./binderfs") = 0
[pid   420] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   420] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   420] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[422], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 422
[pid   420] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 422 attached
 <unfinished ...>
[pid   422] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   422] memfd_create("syzkaller", 0) = 3
[pid   422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   422] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   401] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   401] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   401] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   401] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... futex resumed>)        = 0
[pid   401] <... futex resumed>)        = 1
[pid   405] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   401] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] <... open resumed>)         = 5
[pid   405] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   401] <... futex resumed>)        = 0
[pid   405] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   401] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   401] <... futex resumed>)        = 0
[pid   405] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] <... futex resumed>)        = 0
[pid   401] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   405] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   401] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   417] <... set_robust_list resumed>) = 0
[pid   401] <... futex resumed>)        = 0
[pid   401] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   417] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL) = 0
[pid   417] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   422] <... write resumed>)        = 262144
[pid   422] munmap(0x7f6005c0f000, 262144) = 0
[pid   422] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[   20.846730][  T410] EXT4-fs (loop3): 1 orphan inode deleted
[   20.858905][  T410] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.871716][  T410] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/3/file1 supports timestamps until 2038 (0x7fffffff)
[pid   422] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 421 attached
./strace-static-x86_64: Process 419 attached
./strace-static-x86_64: Process 418 attached
 <unfinished ...>
[pid   417] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   405] <... write resumed>)        = 167936
[pid   422] <... ioctl resumed>)        = 0
[pid   422] close(3)                    = 0
[pid   422] mkdir("./file1", 0777)      = 0
[pid   422] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   421] set_robust_list(0x5555572875e0, 24) = 0
[pid   421] chdir("./3")                = 0
[pid   421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   421] setpgid(0, 0)               = 0
[pid   421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   421] write(3, "1000", 4)         = 4
[pid   421] close(3)                    = 0
[pid   421] symlink("/dev/binderfs", "./binderfs") = 0
[pid   421] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   421] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   421] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[425], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 425
[pid   421] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   421] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 425 attached
 <unfinished ...>
[pid   425] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   425] memfd_create("syzkaller", 0) = 3
[pid   425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   425] munmap(0x7f6005c0f000, 262144) = 0
[pid   425] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   425] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   425] close(3)                    = 0
[pid   425] mkdir("./file1", 0777)      = 0
[pid   425] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   419] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   419] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL) = 0
[pid   419] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   406] <... futex resumed>)        = 0
[pid   406] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] <... futex resumed>)        = 0
[pid   406] <... futex resumed>)        = 1
[pid   410] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   406] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   410] <... open resumed>)         = 5
[pid   410] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   406] <... futex resumed>)        = 0
[pid   410] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   406] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   406] <... futex resumed>)        = 0
[pid   410] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   406] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   410] <... futex resumed>)        = 0
[pid   406] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   410] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   406] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   406] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   419] <... futex resumed>)        = 1
[pid   419] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   418] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   418] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL) = 0
[pid   418] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   418] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   405] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] <... futex resumed>)        = 0
[pid   401] exit_group(0 <unfinished ...>
[pid   417] <... futex resumed>)        = ?
[pid   401] <... exit_group resumed>)   = ?
[pid   417] +++ exited with 0 +++
[pid   405] <... futex resumed>)        = ?
[pid   405] +++ exited with 0 +++
[pid   401] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=401, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   294] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./3/binderfs")      = 0
[pid   294] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   410] <... write resumed>)        = 262144
[pid   404] <... futex resumed>)        = 0
[pid   410] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   406] <... futex resumed>)        = 0
[pid   410] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   406] exit_group(0 <unfinished ...>
[pid   410] <... futex resumed>)        = ?
[pid   406] <... exit_group resumed>)   = ?
[pid   410] +++ exited with 0 +++
[pid   419] <... futex resumed>)        = ?
[pid   419] +++ exited with 0 +++
[pid   406] +++ exited with 0 +++
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=406, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   296] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   296] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   296] fstat(3,  <unfinished ...>
[pid   404] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   407] <... futex resumed>)        = 0
[pid   404] <... futex resumed>)        = 1
[pid   296] unlink("./3/binderfs")      = 0
[pid   296] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   407] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   404] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   415] <... mount resumed>)        = 0
[pid   415] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   415] chdir("./file1")            = 0
[pid   415] ioctl(4, LOOP_CLR_FD)       = 0
[pid   415] close(4)                    = 0
[pid   415] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   412] <... futex resumed>)        = 0
[pid   415] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   412] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   407] <... open resumed>)         = 5
[pid   415] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   415] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   415] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   415] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   412] <... futex resumed>)        = 1
[pid   412] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   407] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   407] <... futex resumed>)        = 1
[pid   412] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] <... futex resumed>)        = 0
[pid   412] <... futex resumed>)        = 0
[pid   407] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   404] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   407] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   404] <... futex resumed>)        = 0
[pid   412] <... futex resumed>)        = 0
[pid   407] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   404] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   407] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   412] <... mmap resumed>)         = 0x7f6005c2e000
[pid   407] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   407] <... futex resumed>)        = 1
[pid   404] <... futex resumed>)        = 0
[pid   412] <... mprotect resumed>)     = 0
[pid   407] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   404] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   407] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   404] <... futex resumed>)        = 0
[pid   407] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   404] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   412] <... clone resumed>, parent_tid=[428], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 428
./strace-static-x86_64: Process 428 attached
[pid   415] <... futex resumed>)        = 0
[pid   412] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   412] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   415] fallocate(4, 0, 35143, 7)   = 0
[pid   415] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   415] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   428] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   428] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid   428] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] <... futex resumed>)        = 0
[pid   412] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   412] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   415] <... futex resumed>)        = 0
[pid   415] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   415] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] <... futex resumed>)        = 0
[pid   412] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   412] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   415] <... futex resumed>)        = 1
[pid   415] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   415] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] <... futex resumed>)        = 0
[pid   412] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   412] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   415] <... futex resumed>)        = 1
[pid   415] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   428] <... futex resumed>)        = 1
[   20.915606][  T422] loop4: detected capacity change from 0 to 512
[   20.924102][  T415] EXT4-fs (loop0): 1 orphan inode deleted
[   20.928503][  T425] loop2: detected capacity change from 0 to 512
[   20.929687][  T415] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   20.947516][  T415] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/4/file1 supports timestamps until 2038 (0x7fffffff)
[pid   428] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   407] <... write resumed>)        = 262144
[pid   407] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   407] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   415] <... write resumed>)        = 262144
[pid   404] <... futex resumed>)        = 0
[pid   415] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] exit_group(0 <unfinished ...>
[pid   412] <... futex resumed>)        = 0
[pid   412] exit_group(0 <unfinished ...>
[pid   428] <... futex resumed>)        = ?
[pid   412] <... exit_group resumed>)   = ?
[pid   428] +++ exited with 0 +++
[pid   404] <... exit_group resumed>)   = ?
[pid   415] <... futex resumed>)        = ?
[pid   418] <... futex resumed>)        = ?
[pid   296] <... umount2 resumed>)      = 0
[pid   418] +++ exited with 0 +++
[pid   296] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   415] +++ exited with 0 +++
[pid   412] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=412, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   293] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] lstat("./3/file1",  <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] <... openat resumed>)       = 3
[pid   293] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(3,  <unfinished ...>
[pid   296] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./4/binderfs" <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] <... unlink resumed>)       = 0
[pid   293] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   296] fstat(4,  <unfinished ...>
[pid   294] <... umount2 resumed>)      = 0
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(4,  <unfinished ...>
[pid   407] <... futex resumed>)        = ?
[pid   407] +++ exited with 0 +++
[pid   404] +++ exited with 0 +++
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=404, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   296] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   298] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... close resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] rmdir("./3/file1" <unfinished ...>
[pid   294] lstat("./3/file1",  <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   298] fstat(3,  <unfinished ...>
[pid   296] <... rmdir resumed>)        = 0
[pid   294] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[   20.982223][  T422] EXT4-fs (loop4): 1 orphan inode deleted
[   20.989662][  T422] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.005539][  T425] EXT4-fs (loop2): 1 orphan inode deleted
[   21.017871][  T425] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(3,  <unfinished ...>
[pid   294] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   422] <... mount resumed>)        = 0
[pid   422] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   422] chdir("./file1")            = 0
[pid   422] ioctl(4, LOOP_CLR_FD)       = 0
[pid   422] close(4)                    = 0
[pid   422] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   420] <... futex resumed>)        = 0
[pid   420] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   422] <... futex resumed>)        = 1
[pid   422] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   422] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   420] <... futex resumed>)        = 0
[pid   420] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   420] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   420] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[431], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 431
[pid   420] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   422] <... futex resumed>)        = 1
[pid   422] fallocate(4, 0, 35143, 7)   = 0
[pid   422] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   422] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   298] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   298] unlink("./3/binderfs")      = 0
[pid   298] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] close(3)                    = 0
[pid   296] rmdir("./3")                = 0
[pid   296] mkdir("./4", 0777)          = 0
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   296] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   296] close(3)                    = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 432
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./3/file1")          = 0
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3)                    = 0
[pid   294] rmdir("./3")                = 0
[pid   294] mkdir("./4", 0777)          = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 432 attached
./strace-static-x86_64: Process 431 attached
 <unfinished ...>
[pid   425] <... mount resumed>)        = 0
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   431] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   425] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   431] <... set_robust_list resumed>) = 0
[pid   425] <... openat resumed>)       = 3
[pid   294] <... close resumed>)        = 0
[pid   293] <... umount2 resumed>)      = 0
[pid   431] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   425] chdir("./file1" <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   431] <... mount resumed>)        = 0
[pid   425] <... chdir resumed>)        = 0
[pid   431] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 433
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   431] <... futex resumed>)        = 1
[pid   425] <... ioctl resumed>)        = 0
[pid   420] <... futex resumed>)        = 0
[pid   431] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   425] close(4 <unfinished ...>
[pid   420] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... close resumed>)        = 0
[pid   422] <... futex resumed>)        = 0
[pid   420] <... futex resumed>)        = 1
[pid   425] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   422] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   420] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   425] <... futex resumed>)        = 1
[pid   422] <... open resumed>)         = 5
[pid   421] <... futex resumed>)        = 0
[pid   293] lstat("./4/file1",  <unfinished ...>
[pid   425] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   422] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   422] <... futex resumed>)        = 1
[pid   421] <... futex resumed>)        = 0
[pid   420] <... futex resumed>)        = 0
[pid   293] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   425] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   422] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   420] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   425] <... open resumed>)         = 4
[pid   422] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   420] <... futex resumed>)        = 0
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   425] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   422] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   420] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   425] <... futex resumed>)        = 1
[pid   422] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   421] <... futex resumed>)        = 0
[pid   425] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   422] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... openat resumed>)       = 4
[pid   425] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   422] <... futex resumed>)        = 1
[pid   421] <... futex resumed>)        = 0
[pid   420] <... futex resumed>)        = 0
[pid   425] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   422] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   420] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... fallocate resumed>)    = 0
[pid   422] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   421] <... futex resumed>)        = 0
[pid   420] <... futex resumed>)        = 0
[pid   425] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   422] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   420] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 433 attached
 <unfinished ...>
[pid   432] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   421] <... mmap resumed>)         = 0x7f6005c2e000
[pid   293] fstat(4,  <unfinished ...>
[pid   432] <... set_robust_list resumed>) = 0
[pid   425] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   432] chdir("./4" <unfinished ...>
[pid   421] <... mprotect resumed>)     = 0
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   432] <... chdir resumed>)        = 0
[pid   422] <... write resumed>)        = 262144
[pid   421] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   432] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   293] getdents64(4,  <unfinished ...>
[pid   432] <... prctl resumed>)        = 0
[pid   422] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] <... clone resumed>, parent_tid=[434], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 434
[pid   433] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   432] setpgid(0, 0 <unfinished ...>
[pid   422] <... futex resumed>)        = 1
[pid   421] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   420] <... futex resumed>)        = 0
[pid   293] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   433] <... set_robust_list resumed>) = 0
[pid   432] <... setpgid resumed>)      = 0
[pid   422] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] <... futex resumed>)        = 0
[pid   420] exit_group(0 <unfinished ...>
[pid   293] getdents64(4,  <unfinished ...>
[pid   432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   431] <... futex resumed>)        = ?
[pid   422] <... futex resumed>)        = ?
[pid   421] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   420] <... exit_group resumed>)   = ?
[pid   432] <... openat resumed>)       = 3
[pid   431] +++ exited with 0 +++
[pid   422] +++ exited with 0 +++
[pid   293] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   432] write(3, "1000", 4)         = 4
[pid   432] close(3)                    = 0
[pid   420] +++ exited with 0 +++
[pid   293] close(4 <unfinished ...>
[pid   432] symlink("/dev/binderfs", "./binderfs") = 0
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=420, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   293] <... close resumed>)        = 0
[pid   432] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] rmdir("./4/file1" <unfinished ...>
[pid   432] <... futex resumed>)        = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   432] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   432] <... mmap resumed>)         = 0x7f600e00f000
[pid   297] <... openat resumed>)       = 3
[pid   293] <... rmdir resumed>)        = 0
[pid   433] chdir("./4" <unfinished ...>
[pid   432] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] fstat(3,  <unfinished ...>
[pid   293] getdents64(3,  <unfinished ...>
[pid   432] <... mprotect resumed>)     = 0
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   432] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   432] <... clone resumed>, parent_tid=[435], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 435
[pid   297] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   432] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   433] <... chdir resumed>)        = 0
[pid   432] <... futex resumed>)        = 0
[pid   297] lstat("./3/binderfs",  <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   432] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   297] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] rmdir("./4" <unfinished ...>
[pid   433] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   297] unlink("./3/binderfs")      = 0
[pid   297] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] <... rmdir resumed>)        = 0
[pid   433] <... prctl resumed>)        = 0
[pid   293] mkdir("./5", 0777 <unfinished ...>
[pid   433] setpgid(0, 0./strace-static-x86_64: Process 434 attached
 <unfinished ...>
[pid   434] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   433] <... setpgid resumed>)      = 0
[pid   293] <... mkdir resumed>)        = 0
[pid   433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   434] <... set_robust_list resumed>) = 0
[pid   434] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[pid   293] <... openat resumed>)       = 3
./strace-static-x86_64: Process 435 attached
[pid   433] <... openat resumed>)       = 3
[pid   298] <... umount2 resumed>)      = 0
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   435] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   433] write(3, "1000", 4 <unfinished ...>
[pid   435] <... set_robust_list resumed>) = 0
[pid   293] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   433] <... write resumed>)        = 4
[pid   293] close(3 <unfinished ...>
[pid   433] close(3 <unfinished ...>
[pid   435] memfd_create("syzkaller", 0 <unfinished ...>
[pid   433] <... close resumed>)        = 0
[pid   298] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   433] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   435] <... memfd_create resumed>) = 3
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] lstat("./3/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] <... clone resumed>, child_tidptr=0x5555572875d0) = 436
./strace-static-x86_64: Process 436 attached
[pid   435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   433] <... symlink resumed>)      = 0
[pid   298] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   433] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] <... mmap resumed>)         = 0x7f6005c0f000
[pid   433] <... futex resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   434] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... openat resumed>)       = 4
[pid   434] <... futex resumed>)        = 1
[pid   421] <... futex resumed>)        = 0
[pid   298] fstat(4,  <unfinished ...>
[pid   434] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   425] <... futex resumed>)        = 0
[pid   421] <... futex resumed>)        = 1
[   21.025593][  T422] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/3/file1 supports timestamps until 2038 (0x7fffffff)
[   21.032047][  T425] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/3/file1 supports timestamps until 2038 (0x7fffffff)
[pid   298] getdents64(4,  <unfinished ...>
[pid   425] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   421] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   436] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   425] <... open resumed>)         = 5
[pid   298] getdents64(4,  <unfinished ...>
[pid   436] <... set_robust_list resumed>) = 0
[pid   425] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   433] <... mmap resumed>)         = 0x7f600e00f000
[pid   425] <... futex resumed>)        = 1
[pid   421] <... futex resumed>)        = 0
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   433] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   425] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] close(4 <unfinished ...>
[pid   433] <... mprotect resumed>)     = 0
[pid   425] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   421] <... futex resumed>)        = 0
[pid   433] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   425] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   421] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... close resumed>)        = 0
./strace-static-x86_64: Process 437 attached
[pid   436] chdir("./5" <unfinished ...>
[pid   435] <... write resumed>)        = 262144
[pid   425] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   298] rmdir("./3/file1" <unfinished ...>
[pid   437] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   436] <... chdir resumed>)        = 0
[pid   435] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   433] <... clone resumed>, parent_tid=[437], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 437
[pid   425] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   433] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] <... futex resumed>)        = 0
[pid   298] <... rmdir resumed>)        = 0
[pid   437] <... set_robust_list resumed>) = 0
[pid   436] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   435] <... munmap resumed>)       = 0
[pid   433] <... futex resumed>)        = 0
[pid   421] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   436] <... prctl resumed>)        = 0
[pid   435] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   433] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   421] <... futex resumed>)        = 1
[pid   436] setpgid(0, 0 <unfinished ...>
[pid   435] <... openat resumed>)       = 4
[pid   421] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   425] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   436] <... setpgid resumed>)      = 0
[pid   435] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   298] close(3)                    = 0
[pid   437] memfd_create("syzkaller", 0) = 3
[pid   437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   437] munmap(0x7f6005c0f000, 262144) = 0
[pid   437] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   437] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   435] <... ioctl resumed>)        = 0
[pid   425] <... write resumed>)        = 262144
[pid   298] rmdir("./3" <unfinished ...>
[pid   437] <... ioctl resumed>)        = 0
[pid   298] <... rmdir resumed>)        = 0
[pid   298] mkdir("./4", 0777 <unfinished ...>
[pid   425] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   437] close(3)                    = 0
[pid   437] mkdir("./file1", 0777 <unfinished ...>
[pid   298] <... mkdir resumed>)        = 0
[pid   425] <... futex resumed>)        = 1
[pid   421] <... futex resumed>)        = 0
[pid   421] exit_group(0 <unfinished ...>
[pid   425] ????( <unfinished ...>
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   434] <... futex resumed>)        = ?
[pid   425] <... ???? resumed>)         = ?
[pid   421] <... exit_group resumed>)   = ?
[pid   436] <... openat resumed>)       = 3
[pid   437] <... mkdir resumed>)        = 0
[pid   435] close(3 <unfinished ...>
[pid   434] +++ exited with 0 +++
[pid   425] +++ exited with 0 +++
[pid   421] +++ exited with 0 +++
[pid   298] <... openat resumed>)       = 3
[pid   297] <... umount2 resumed>)      = 0
[pid   297] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=421, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] lstat("./3/file1",  <unfinished ...>
[pid   298] close(3 <unfinished ...>
[pid   297] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] <... close resumed>)        = 0
[pid   297] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 438 attached
 <unfinished ...>
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 438
[pid   297] <... openat resumed>)       = 4
[pid   297] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(4,  <unfinished ...>
[pid   295] fstat(3,  <unfinished ...>
[pid   438] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   438] <... set_robust_list resumed>) = 0
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] getdents64(3,  <unfinished ...>
[pid   297] getdents64(4,  <unfinished ...>
[pid   438] chdir("./4" <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] close(4 <unfinished ...>
[pid   295] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   438] <... chdir resumed>)        = 0
[pid   297] <... close resumed>)        = 0
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] rmdir("./3/file1" <unfinished ...>
[pid   295] lstat("./3/binderfs",  <unfinished ...>
[pid   438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   297] <... rmdir resumed>)        = 0
[pid   295] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] getdents64(3,  <unfinished ...>
[pid   295] unlink("./3/binderfs" <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   436] write(3, "1000", 4)         = 4
[pid   436] close(3 <unfinished ...>
[pid   295] <... unlink resumed>)       = 0
[pid   438] setpgid(0, 0 <unfinished ...>
[pid   297] close(3 <unfinished ...>
[pid   438] <... setpgid resumed>)      = 0
[pid   295] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   436] <... close resumed>)        = 0
[pid   297] rmdir("./3" <unfinished ...>
[pid   436] symlink("/dev/binderfs", "./binderfs") = 0
[pid   297] <... rmdir resumed>)        = 0
[pid   436] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   436] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   436] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] mkdir("./4", 0777 <unfinished ...>
[pid   436] <... clone resumed>, parent_tid=[439], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 439
[pid   436] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   436] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   297] <... mkdir resumed>)        = 0
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   297] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   435] <... close resumed>)        = 0
[pid   297] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] close(3 <unfinished ...>
[pid   437] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   435] mkdir("./file1", 0777)      = 0
./strace-static-x86_64: Process 439 attached
[pid   438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 440 attached
 <unfinished ...>
[pid   439] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   438] <... openat resumed>)       = 3
[pid   439] <... set_robust_list resumed>) = 0
[pid   438] write(3, "1000", 4 <unfinished ...>
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 440
[pid   438] <... write resumed>)        = 4
[pid   438] close(3 <unfinished ...>
[pid   440] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   439] memfd_create("syzkaller", 0 <unfinished ...>
[pid   438] <... close resumed>)        = 0
[pid   440] <... set_robust_list resumed>) = 0
[pid   438] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   439] <... memfd_create resumed>) = 3
[pid   439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   438] <... symlink resumed>)      = 0
[pid   440] chdir("./4" <unfinished ...>
[pid   439] <... mmap resumed>)         = 0x7f6005c0f000
[pid   438] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   435] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   438] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   438] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   438] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[441], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 441
[pid   438] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   438] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   440] <... chdir resumed>)        = 0
./strace-static-x86_64: Process 441 attached
[pid   439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   441] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   440] setpgid(0, 0)               = 0
[pid   440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   441] <... set_robust_list resumed>) = 0
[pid   439] <... write resumed>)        = 262144
[pid   439] munmap(0x7f6005c0f000, 262144) = 0
[pid   441] memfd_create("syzkaller", 0 <unfinished ...>
[pid   439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   441] <... memfd_create resumed>) = 3
[pid   439] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   440] <... openat resumed>)       = 3
[pid   440] write(3, "1000", 4)         = 4
[pid   440] close(3)                    = 0
[   21.100471][  T435] loop3: detected capacity change from 0 to 512
[   21.105979][  T437] loop1: detected capacity change from 0 to 512
[pid   440] symlink("/dev/binderfs", "./binderfs") = 0
[pid   440] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   440] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   440] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[444], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 444
[pid   440] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   440] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 444 attached
 <unfinished ...>
[pid   444] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   444] memfd_create("syzkaller", 0) = 3
[pid   444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   444] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   439] <... ioctl resumed>)        = 0
[pid   441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   439] close(3 <unfinished ...>
[pid   444] munmap(0x7f6005c0f000, 262144) = 0
[pid   444] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   444] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   441] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   439] <... close resumed>)        = 0
[pid   441] <... write resumed>)        = 262144
[pid   439] mkdir("./file1", 0777 <unfinished ...>
[pid   437] <... mount resumed>)        = 0
[pid   437] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   437] chdir("./file1")            = 0
[pid   437] ioctl(4, LOOP_CLR_FD)       = 0
[pid   437] close(4 <unfinished ...>
[pid   444] <... ioctl resumed>)        = 0
[pid   441] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   439] <... mkdir resumed>)        = 0
[pid   295] <... umount2 resumed>)      = 0
[pid   441] <... munmap resumed>)       = 0
[   21.143130][  T439] loop0: detected capacity change from 0 to 512
[   21.152898][  T437] EXT4-fs (loop1): 1 orphan inode deleted
[   21.158450][  T437] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.170190][  T437] ext4 filesystem being mounted at /root/syzkaller.6GNILo/4/file1 supports timestamps until 2038 (0x7fffffff)
[   21.171222][  T444] loop4: detected capacity change from 0 to 512
[pid   439] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   437] <... close resumed>)        = 0
[pid   437] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   433] <... futex resumed>)        = 0
[pid   433] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   433] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   437] <... futex resumed>)        = 1
[pid   437] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   437] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   433] <... futex resumed>)        = 0
[pid   433] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   433] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   433] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   433] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[447], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 447
[pid   433] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   433] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   437] <... futex resumed>)        = 1
[pid   437] fallocate(4, 0, 35143, 7)   = 0
[pid   437] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   437] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 447 attached
 <unfinished ...>
[pid   447] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   447] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL) = 0
[pid   447] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   433] <... futex resumed>)        = 0
[pid   433] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   433] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   437] <... futex resumed>)        = 0
[pid   437] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   437] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   433] <... futex resumed>)        = 0
[pid   433] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   433] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   437] <... futex resumed>)        = 1
[pid   437] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   437] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   433] <... futex resumed>)        = 0
[pid   433] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   433] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   437] <... futex resumed>)        = 1
[pid   437] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   441] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   295] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   444] close(3 <unfinished ...>
[pid   441] <... openat resumed>)       = 4
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   444] <... close resumed>)        = 0
[pid   441] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   295] lstat("./3/file1",  <unfinished ...>
[pid   437] <... write resumed>)        = 262144
[pid   437] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   433] <... futex resumed>)        = 0
[pid   433] exit_group(0)               = ?
[pid   437] <... futex resumed>)        = ?
[pid   437] +++ exited with 0 +++
[pid   447] <... futex resumed>)        = ?
[pid   447] +++ exited with 0 +++
[pid   433] +++ exited with 0 +++
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   435] <... mount resumed>)        = 0
[pid   435] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   435] chdir("./file1")            = 0
[pid   435] ioctl(4, LOOP_CLR_FD)       = 0
[pid   435] close(4 <unfinished ...>
[pid   444] mkdir("./file1", 0777 <unfinished ...>
[pid   441] <... ioctl resumed>)        = 0
[pid   295] umount2("./3/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=433, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   444] <... mkdir resumed>)        = 0
[pid   444] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   294] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... openat resumed>)       = 4
[pid   295] fstat(4,  <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   441] close(3 <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   441] <... close resumed>)        = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   441] mkdir("./file1", 0777 <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] <... openat resumed>)       = 3
[pid   295] getdents64(4,  <unfinished ...>
[pid   294] fstat(3,  <unfinished ...>
[pid   441] <... mkdir resumed>)        = 0
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] close(4 <unfinished ...>
[pid   441] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] rmdir("./3/file1")          = 0
[pid   295] getdents64(3,  <unfinished ...>
[pid   294] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./4/binderfs",  <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./4/binderfs" <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   294] <... unlink resumed>)       = 0
[pid   295] <... close resumed>)        = 0
[pid   294] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] rmdir("./3")                = 0
[pid   295] mkdir("./4", 0777)          = 0
[pid   435] <... close resumed>)        = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   435] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... futex resumed>)        = 0
[pid   432] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   432] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   435] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   435] <... open resumed>)         = 4
[pid   435] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... futex resumed>)        = 0
[pid   432] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   432] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   432] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   432] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 448
[pid   432] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[449], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 449
[pid   432] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   432] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   435] fallocate(4, 0, 35143, 7)   = 0
[pid   435] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   435] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 448 attached
 <unfinished ...>
[pid   448] set_robust_list(0x5555572875e0, 24) = 0
[pid   448] chdir("./4")                = 0
[pid   448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   448] setpgid(0, 0)               = 0
[pid   448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   448] write(3, "1000", 4)         = 4
[pid   448] close(3)                    = 0
[pid   448] symlink("/dev/binderfs", "./binderfs") = 0
[pid   448] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
./strace-static-x86_64: Process 449 attached
[pid   449] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   448] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   449] <... set_robust_list resumed>) = 0
[pid   449] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   448] <... mprotect resumed>)     = 0
[pid   449] <... mount resumed>)        = 0
[pid   448] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   449] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... futex resumed>)        = 0
[pid   432] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   432] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] <... futex resumed>)        = 0
[pid   435] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   435] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   432] <... futex resumed>)        = 0
[pid   435] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   432] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   432] <... futex resumed>)        = 0
[pid   435] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] <... futex resumed>)        = 0
[pid   432] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   435] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   432] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   21.192297][  T435] EXT4-fs (loop3): 1 orphan inode deleted
[   21.198023][  T435] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.210017][  T435] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/4/file1 supports timestamps until 2038 (0x7fffffff)
[   21.222410][  T441] loop5: detected capacity change from 0 to 512
[pid   432] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... umount2 resumed>)      = 0
[pid   294] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./4/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./4/file1")          = 0
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3)                    = 0
[pid   294] rmdir("./4")                = 0
[pid   294] mkdir("./5", 0777)          = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 456 attached
, child_tidptr=0x5555572875d0) = 456
[pid   456] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   449] <... futex resumed>)        = 1
[pid   435] <... write resumed>)        = 262144
[pid   449] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   448] <... clone resumed>, parent_tid=[457], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 457
[pid   435] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   448] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   432] <... futex resumed>)        = 0
[pid   448] <... futex resumed>)        = 0
[pid   435] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[   21.253708][  T444] EXT4-fs (loop4): 1 orphan inode deleted
[   21.259256][  T444] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.271199][  T439] EXT4-fs (loop0): 1 orphan inode deleted
[   21.288881][  T439] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   432] exit_group(0./strace-static-x86_64: Process 457 attached
 <unfinished ...>
[pid   456] <... set_robust_list resumed>) = 0
[pid   449] <... futex resumed>)        = ?
[pid   448] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   435] <... futex resumed>)        = ?
[pid   432] <... exit_group resumed>)   = ?
[pid   457] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   456] chdir("./5" <unfinished ...>
[pid   449] +++ exited with 0 +++
[pid   444] <... mount resumed>)        = 0
[pid   435] +++ exited with 0 +++
[pid   432] +++ exited with 0 +++
[pid   457] <... set_robust_list resumed>) = 0
[pid   456] <... chdir resumed>)        = 0
[pid   444] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=432, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   439] <... mount resumed>)        = 0
[pid   439] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   439] chdir("./file1")            = 0
[pid   439] ioctl(4, LOOP_CLR_FD)       = 0
[pid   439] close(4 <unfinished ...>
[pid   457] memfd_create("syzkaller", 0 <unfinished ...>
[pid   456] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   444] <... openat resumed>)       = 3
[pid   456] <... prctl resumed>)        = 0
[pid   444] chdir("./file1" <unfinished ...>
[pid   457] <... memfd_create resumed>) = 3
[pid   456] setpgid(0, 0 <unfinished ...>
[pid   444] <... chdir resumed>)        = 0
[pid   456] <... setpgid resumed>)      = 0
[pid   444] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   457] <... mmap resumed>)         = 0x7f6005c0f000
[pid   444] <... ioctl resumed>)        = 0
[pid   444] close(4 <unfinished ...>
[pid   439] <... close resumed>)        = 0
[pid   439] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... futex resumed>)        = 0
[pid   436] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   436] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   439] <... futex resumed>)        = 1
[pid   439] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   444] <... close resumed>)        = 0
[pid   444] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] <... openat resumed>)       = 3
[pid   444] <... futex resumed>)        = 1
[pid   440] <... futex resumed>)        = 0
[pid   440] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   440] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   457] <... write resumed>)        = 262144
[pid   456] write(3, "1000", 4 <unfinished ...>
[pid   444] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   441] <... mount resumed>)        = 0
[pid   296] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   456] <... write resumed>)        = 4
[pid   457] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   456] close(3 <unfinished ...>
[pid   444] <... open resumed>)         = 4
[pid   441] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   456] <... close resumed>)        = 0
[pid   444] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   440] <... futex resumed>)        = 0
[pid   444] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   440] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] <... fallocate resumed>)    = 0
[pid   440] <... futex resumed>)        = 0
[pid   444] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] <... futex resumed>)        = 0
[pid   440] <... futex resumed>)        = 0
[pid   444] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   440] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   440] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[459], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 459
[pid   440] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   440] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   456] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   457] <... munmap resumed>)       = 0
[pid   456] <... symlink resumed>)      = 0
[pid   441] <... openat resumed>)       = 3
[pid   296] fstat(3,  <unfinished ...>
[pid   457] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   456] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] chdir("./file1" <unfinished ...>
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   456] <... futex resumed>)        = 0
[pid   296] getdents64(3,  <unfinished ...>
[pid   457] <... openat resumed>)       = 4
[pid   456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   441] <... chdir resumed>)        = 0
[pid   296] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   456] <... mmap resumed>)         = 0x7f600e00f000
[pid   456] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[   21.291832][  T444] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/4/file1 supports timestamps until 2038 (0x7fffffff)
[   21.313575][  T441] EXT4-fs (loop5): 1 orphan inode deleted
[   21.319120][  T441] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.330650][  T439] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/5/file1 supports timestamps until 2038 (0x7fffffff)
[   21.331632][  T441] ext4 filesystem being mounted at /root/syzkaller.kumyKI/4/file1 supports timestamps until 2038 (0x7fffffff)
[pid   296] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   457] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   456] <... mprotect resumed>)     = 0
[pid   441] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   456] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   296] lstat("./4/binderfs",  <unfinished ...>
[pid   439] <... open resumed>)         = 4
[pid   439] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... futex resumed>)        = 0
[pid   436] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   436] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   436] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   436] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[460], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 460
[pid   436] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   436] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   439] <... futex resumed>)        = 1
[pid   439] fallocate(4, 0, 35143, 7)   = 0
[pid   439] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   439] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 459 attached
 <unfinished ...>
[pid   459] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   459] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL) = 0
[pid   459] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] <... futex resumed>)        = 0
[pid   440] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] <... futex resumed>)        = 0
[pid   440] <... futex resumed>)        = 1
[pid   444] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   440] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   444] <... open resumed>)         = 5
[pid   444] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   440] <... futex resumed>)        = 0
[pid   444] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   440] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   440] <... futex resumed>)        = 0
[pid   444] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   440] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   444] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   444] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   440] <... futex resumed>)        = 0
[pid   444] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   440] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   440] <... futex resumed>)        = 0
[pid   444] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   440] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   444] <... write resumed>)        = 262144
[pid   444] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   440] <... futex resumed>)        = 0
[pid   444] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   440] exit_group(0 <unfinished ...>
[pid   444] <... futex resumed>)        = ?
[pid   440] <... exit_group resumed>)   = ?
[pid   444] +++ exited with 0 +++
[pid   459] <... futex resumed>)        = ?
[pid   296] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] unlink("./4/binderfs" <unfinished ...>
[pid   456] <... clone resumed>, parent_tid=[461], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 461
./strace-static-x86_64: Process 460 attached
[pid   460] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   460] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid   460] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... futex resumed>)        = 0
[pid   436] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   296] <... unlink resumed>)       = 0
[pid   456] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] <... futex resumed>)        = 0
[pid   296] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   456] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   439] <... futex resumed>)        = 0
[pid   457] <... ioctl resumed>)        = 0
[pid   441] <... ioctl resumed>)        = 0
[pid   457] close(3 <unfinished ...>
[pid   441] close(4 <unfinished ...>
[pid   439] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   457] <... close resumed>)        = 0
[pid   441] <... close resumed>)        = 0
[pid   439] <... open resumed>)         = 5
[pid   439] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   436] <... futex resumed>)        = 0
[pid   439] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   436] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   457] mkdir("./file1", 0777 <unfinished ...>
[pid   441] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   436] <... futex resumed>)        = 0
[pid   457] <... mkdir resumed>)        = 0
[pid   441] <... futex resumed>)        = 1
[pid   439] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 0
[pid   436] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   439] <... futex resumed>)        = 0
[pid   436] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   439] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   436] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   457] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   441] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   438] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... futex resumed>)        = 0
[pid   436] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   439] <... write resumed>)        = 262144
[pid   439] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... futex resumed>)        = 0
[pid   436] exit_group(0)               = ?
[pid   439] <... futex resumed>)        = ?
[pid   439] +++ exited with 0 +++
[pid   460] <... futex resumed>)        = ?
[pid   441] <... open resumed>)         = 4
[pid   438] <... futex resumed>)        = 0
[pid   438] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   459] +++ exited with 0 +++
[pid   441] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] +++ exited with 0 +++
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=440, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   441] <... futex resumed>)        = 1
[pid   438] <... futex resumed>)        = 0
[pid   297] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   438] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   460] +++ exited with 0 +++
[pid   438] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] +++ exited with 0 +++
./strace-static-x86_64: Process 461 attached
[pid   438] <... futex resumed>)        = 0
[pid   438] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=436, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   438] <... mmap resumed>)         = 0x7f6005c2e000
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   438] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   461] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   438] <... mprotect resumed>)     = 0
[pid   297] <... restart_syscall resumed>) = 0
[pid   293] <... restart_syscall resumed>) = 0
[pid   438] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   461] <... set_robust_list resumed>) = 0
[pid   461] memfd_create("syzkaller", 0 <unfinished ...>
[pid   438] <... clone resumed>, parent_tid=[462], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 462
[pid   438] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   438] <... futex resumed>)        = 0
[pid   293] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   461] <... memfd_create resumed>) = 3
[pid   438] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   293] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] <... openat resumed>)       = 3
[pid   293] <... openat resumed>)       = 3
[pid   297] fstat(3,  <unfinished ...>
[pid   293] fstat(3,  <unfinished ...>
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   293] getdents64(3,  <unfinished ...>
[pid   461] <... mmap resumed>)         = 0x7f6005c0f000
[pid   461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   441] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] lstat("./4/binderfs",  <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] lstat("./5/binderfs",  <unfinished ...>
[pid   297] unlink("./4/binderfs" <unfinished ...>
[pid   293] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
./strace-static-x86_64: Process 462 attached
[pid   462] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   462] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   297] <... unlink resumed>)       = 0
[pid   293] unlink("./5/binderfs" <unfinished ...>
[pid   462] <... mount resumed>)        = 0
[pid   297] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] <... unlink resumed>)       = 0
[pid   293] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   462] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 0
[pid   441] <... fallocate resumed>)    = 0
[pid   438] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 0
[pid   438] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   441] <... futex resumed>)        = 0
[pid   462] <... futex resumed>)        = 1
[pid   441] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   462] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   462] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 0
[pid   438] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   438] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   462] <... futex resumed>)        = 1
[pid   462] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   441] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   441] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   441] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   461] <... write resumed>)        = 262144
[pid   441] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] munmap(0x7f6005c0f000, 262144) = 0
[pid   461] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[   21.365481][  T457] loop2: detected capacity change from 0 to 512
[   21.403069][  T457] EXT4-fs (loop2): 1 orphan inode deleted
[pid   461] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   438] <... futex resumed>)        = 0
[pid   461] <... ioctl resumed>)        = 0
[pid   461] close(3)                    = 0
[pid   461] mkdir("./file1", 0777)      = 0
[pid   461] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   438] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] <... futex resumed>)        = 0
[pid   438] <... futex resumed>)        = 1
[pid   441] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   438] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] <... umount2 resumed>)      = 0
[pid   297] <... umount2 resumed>)      = 0
[pid   297] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] <... umount2 resumed>)      = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] lstat("./4/file1",  <unfinished ...>
[pid   296] lstat("./4/file1",  <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] lstat("./5/file1",  <unfinished ...>
[pid   297] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... openat resumed>)       = 4
[pid   296] <... openat resumed>)       = 4
[pid   293] openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] fstat(4,  <unfinished ...>
[pid   296] fstat(4,  <unfinished ...>
[pid   293] <... openat resumed>)       = 4
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] fstat(4,  <unfinished ...>
[pid   441] <... write resumed>)        = 262144
[pid   297] getdents64(4,  <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   441] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] getdents64(4,  <unfinished ...>
[pid   441] <... futex resumed>)        = 1
[pid   438] <... futex resumed>)        = 0
[pid   297] getdents64(4,  <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   441] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   438] exit_group(0 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   462] <... futex resumed>)        = ?
[pid   441] <... futex resumed>)        = ?
[pid   438] <... exit_group resumed>)   = ?
[pid   297] close(4 <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   293] getdents64(4,  <unfinished ...>
[pid   462] +++ exited with 0 +++
[pid   441] +++ exited with 0 +++
[pid   438] +++ exited with 0 +++
[pid   297] <... close resumed>)        = 0
[pid   296] <... close resumed>)        = 0
[pid   297] rmdir("./4/file1" <unfinished ...>
[pid   296] rmdir("./4/file1" <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=438, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   298] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   293] close(4 <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   296] <... rmdir resumed>)        = 0
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] getdents64(3,  <unfinished ...>
[pid   293] rmdir("./5/file1" <unfinished ...>
[pid   298] <... restart_syscall resumed>) = 0
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] <... rmdir resumed>)        = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3 <unfinished ...>
[pid   297] close(3 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   297] <... close resumed>)        = 0
[pid   296] close(3 <unfinished ...>
[pid   293] rmdir("./5" <unfinished ...>
[pid   297] rmdir("./4" <unfinished ...>
[pid   296] <... close resumed>)        = 0
[pid   293] <... rmdir resumed>)        = 0
[pid   298] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   296] rmdir("./4" <unfinished ...>
[pid   293] mkdir("./6", 0777 <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] mkdir("./5", 0777 <unfinished ...>
[pid   296] <... rmdir resumed>)        = 0
[pid   293] <... mkdir resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] <... mkdir resumed>)        = 0
[pid   296] mkdir("./5", 0777 <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   298] fstat(3,  <unfinished ...>
[pid   297] <... openat resumed>)       = 3
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   297] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   293] close(3 <unfinished ...>
[pid   297] close(3 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   297] <... close resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   296] <... mkdir resumed>)        = 0
[pid   298] getdents64(3,  <unfinished ...>
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x5555572875d0) = 465
[pid   298] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 466
[pid   296] <... openat resumed>)       = 3
[pid   298] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   298] lstat("./4/binderfs",  <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] <... close resumed>)        = 0
[pid   298] unlink("./4/binderfs")      = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   298] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 466 attached
./strace-static-x86_64: Process 465 attached
 <unfinished ...>
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 467
[pid   465] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   466] set_robust_list(0x5555572875e0, 24) = 0
[pid   466] chdir("./5")                = 0
[pid   466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   466] setpgid(0, 0 <unfinished ...>
[pid   465] <... set_robust_list resumed>) = 0
[pid   465] chdir("./6")                = 0
[pid   465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   466] <... setpgid resumed>)      = 0
[pid   465] setpgid(0, 0 <unfinished ...>
[pid   466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   465] <... setpgid resumed>)      = 0
[pid   466] <... openat resumed>)       = 3
[pid   465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   466] write(3, "1000", 4)         = 4
[pid   465] <... openat resumed>)       = 3
[pid   466] close(3)                    = 0
[pid   466] symlink("/dev/binderfs", "./binderfs") = 0
[pid   465] write(3, "1000", 4)         = 4
[pid   465] close(3)                    = 0
[pid   465] symlink("/dev/binderfs", "./binderfs") = 0
[pid   465] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   465] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   465] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[469], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 469
./strace-static-x86_64: Process 469 attached
[pid   465] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   465] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   466] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   466] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   466] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   469] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   466] <... clone resumed>, parent_tid=[470], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 470
[pid   466] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   466] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 467 attached
 <unfinished ...>
[pid   467] set_robust_list(0x5555572875e0, 24) = 0
[pid   467] chdir("./5")                = 0
[pid   467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   469] memfd_create("syzkaller", 0 <unfinished ...>
[pid   467] setpgid(0, 0)               = 0
[pid   467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 470 attached
 <unfinished ...>
[pid   469] <... memfd_create resumed>) = 3
[pid   469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   470] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   467] <... openat resumed>)       = 3
[pid   467] write(3, "1000", 4)         = 4
[pid   467] close(3)                    = 0
[pid   467] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   470] <... set_robust_list resumed>) = 0
[pid   469] <... mmap resumed>)         = 0x7f6005c0f000
[pid   467] <... symlink resumed>)      = 0
[pid   467] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   467] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[   21.408614][  T457] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.415373][  T461] loop1: detected capacity change from 0 to 512
[   21.419755][  T457] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/4/file1 supports timestamps until 2038 (0x7fffffff)
[pid   467] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[471], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 471
[pid   467] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   467] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 471 attached
 <unfinished ...>
[pid   470] memfd_create("syzkaller", 0 <unfinished ...>
[pid   469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   457] <... mount resumed>)        = 0
[pid   471] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   470] <... memfd_create resumed>) = 3
[pid   469] <... write resumed>)        = 262144
[pid   457] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   298] <... umount2 resumed>)      = 0
[pid   471] <... set_robust_list resumed>) = 0
[pid   470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   469] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   457] <... openat resumed>)       = 3
[pid   298] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] lstat("./4/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   298] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   298] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   298] close(4)                    = 0
[pid   298] rmdir("./4/file1" <unfinished ...>
[pid   470] <... mmap resumed>)         = 0x7f6005c0f000
[pid   298] <... rmdir resumed>)        = 0
[pid   469] <... munmap resumed>)       = 0
[pid   298] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   298] close(3)                    = 0
[pid   298] rmdir("./4" <unfinished ...>
[pid   471] memfd_create("syzkaller", 0 <unfinished ...>
[pid   469] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   457] chdir("./file1" <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   471] <... memfd_create resumed>) = 3
[pid   470] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   469] <... openat resumed>)       = 4
[pid   457] <... chdir resumed>)        = 0
[pid   298] mkdir("./5", 0777)          = 0
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   298] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   298] close(3)                    = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 473
[pid   469] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 473 attached
 <unfinished ...>
[pid   461] <... mount resumed>)        = 0
[pid   471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   473] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   461] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   473] <... set_robust_list resumed>) = 0
[pid   473] chdir("./5" <unfinished ...>
[pid   461] <... openat resumed>)       = 3
[pid   473] <... chdir resumed>)        = 0
[pid   461] chdir("./file1" <unfinished ...>
[pid   473] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   461] <... chdir resumed>)        = 0
[pid   473] <... prctl resumed>)        = 0
[pid   461] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   473] setpgid(0, 0)               = 0
[pid   461] <... ioctl resumed>)        = 0
[pid   473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   471] <... write resumed>)        = 262144
[pid   461] close(4 <unfinished ...>
[pid   473] <... openat resumed>)       = 3
[pid   473] write(3, "1000", 4 <unfinished ...>
[pid   461] <... close resumed>)        = 0
[pid   473] <... write resumed>)        = 4
[pid   471] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   470] <... write resumed>)        = 262144
[pid   469] <... ioctl resumed>)        = 0
[pid   457] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   470] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   473] close(3 <unfinished ...>
[pid   471] <... munmap resumed>)       = 0
[pid   461] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   473] <... close resumed>)        = 0
[pid   470] <... munmap resumed>)       = 0
[pid   470] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   473] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   456] <... futex resumed>)        = 0
[pid   456] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   471] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   470] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   473] <... symlink resumed>)      = 0
[pid   456] <... futex resumed>)        = 0
[   21.478525][  T461] EXT4-fs (loop1): 1 orphan inode deleted
[   21.484586][  T461] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.502163][  T461] ext4 filesystem being mounted at /root/syzkaller.6GNILo/5/file1 supports timestamps until 2038 (0x7fffffff)
[   21.508860][  T469] loop0: detected capacity change from 0 to 512
[pid   473] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] <... futex resumed>)        = 1
[pid   456] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   473] <... futex resumed>)        = 0
[pid   473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   470] <... ioctl resumed>)        = 0
[pid   461] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   473] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   457] <... ioctl resumed>)        = 0
[pid   473] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   457] close(4)                    = 0
./strace-static-x86_64: Process 474 attached
[pid   473] <... clone resumed>, parent_tid=[474], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 474
[pid   461] <... open resumed>)         = 4
[pid   474] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   473] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   473] <... futex resumed>)        = 0
[pid   473] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   456] <... futex resumed>)        = 0
[pid   456] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   456] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   456] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   456] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[475], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 475
[pid   456] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   456] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   457] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 475 attached
 <unfinished ...>
[pid   470] close(3 <unfinished ...>
[pid   475] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   471] <... ioctl resumed>)        = 0
[pid   475] <... set_robust_list resumed>) = 0
[pid   474] <... set_robust_list resumed>) = 0
[pid   470] <... close resumed>)        = 0
[pid   469] close(3 <unfinished ...>
[pid   461] <... futex resumed>)        = 1
[pid   475] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   471] close(3 <unfinished ...>
[pid   448] <... futex resumed>)        = 0
[pid   475] <... mount resumed>)        = 0
[pid   448] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   448] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   457] <... futex resumed>)        = 1
[pid   457] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   475] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] memfd_create("syzkaller", 0 <unfinished ...>
[pid   471] <... close resumed>)        = 0
[pid   470] mkdir("./file1", 0777 <unfinished ...>
[pid   469] <... close resumed>)        = 0
[pid   461] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   475] <... futex resumed>)        = 1
[pid   470] <... mkdir resumed>)        = 0
[pid   457] <... open resumed>)         = 4
[pid   456] <... futex resumed>)        = 0
[pid   475] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] <... fallocate resumed>)    = 0
[pid   456] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   475] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   470] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   456] <... futex resumed>)        = 0
[pid   475] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   461] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   457] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   475] <... open resumed>)         = 5
[pid   475] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] <... futex resumed>)        = 0
[pid   475] <... futex resumed>)        = 1
[pid   456] <... futex resumed>)        = 0
[pid   475] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   456] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   456] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   461] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   461] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   461] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] <... memfd_create resumed>) = 3
[pid   471] mkdir("./file1", 0777 <unfinished ...>
[pid   469] mkdir("./file1", 0777 <unfinished ...>
[pid   461] <... futex resumed>)        = 1
[pid   456] <... futex resumed>)        = 0
[pid   457] <... futex resumed>)        = 1
[pid   456] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   448] <... futex resumed>)        = 0
[pid   456] <... futex resumed>)        = 0
[pid   448] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   448] <... futex resumed>)        = 0
[pid   474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   471] <... mkdir resumed>)        = 0
[pid   469] <... mkdir resumed>)        = 0
[pid   461] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   457] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   448] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] <... mmap resumed>)         = 0x7f6005c0f000
[pid   471] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   469] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   448] <... futex resumed>)        = 0
[pid   448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   474] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   457] <... fallocate resumed>)    = 0
[pid   448] <... mmap resumed>)         = 0x7f6005c2e000
[pid   457] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   448] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   457] <... futex resumed>)        = 0
[pid   448] <... mprotect resumed>)     = 0
[pid   457] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   448] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[478], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 478
[pid   448] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   474] <... write resumed>)        = 262144
[pid   448] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   474] munmap(0x7f6005c0f000, 262144) = 0
[pid   474] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   474] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   461] <... write resumed>)        = 262144
./strace-static-x86_64: Process 478 attached
[   21.535969][  T471] loop3: detected capacity change from 0 to 512
[   21.542598][  T470] loop4: detected capacity change from 0 to 512
[   21.563950][  T470] EXT4-fs (loop4): 1 orphan inode deleted
[   21.569495][  T470] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.578997][  T474] loop5: detected capacity change from 0 to 512
[pid   461] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] <... ioctl resumed>)        = 0
[pid   474] close(3)                    = 0
[pid   474] mkdir("./file1", 0777)      = 0
[pid   474] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   478] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   461] <... futex resumed>)        = 1
[pid   456] <... futex resumed>)        = 0
[pid   478] <... set_robust_list resumed>) = 0
[pid   461] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   456] exit_group(0 <unfinished ...>
[pid   478] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[pid   475] <... futex resumed>)        = ?
[pid   461] <... futex resumed>)        = ?
[pid   456] <... exit_group resumed>)   = ?
[pid   478] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   475] +++ exited with 0 +++
[pid   461] +++ exited with 0 +++
[pid   456] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=456, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   294] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   478] <... futex resumed>)        = 1
[pid   448] <... futex resumed>)        = 0
[pid   294] unlink("./5/binderfs" <unfinished ...>
[pid   478] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   448] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... unlink resumed>)       = 0
[pid   294] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   457] <... futex resumed>)        = 0
[pid   448] <... futex resumed>)        = 1
[pid   457] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   448] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   457] <... open resumed>)         = 5
[pid   457] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   448] <... futex resumed>)        = 0
[pid   457] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   448] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   457] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   448] <... futex resumed>)        = 0
[pid   448] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   457] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   457] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   448] <... futex resumed>)        = 0
[pid   457] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   448] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   457] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   448] <... futex resumed>)        = 0
[   21.587349][  T470] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/5/file1 supports timestamps until 2038 (0x7fffffff)
[   21.607368][  T469] EXT4-fs (loop0): 1 orphan inode deleted
[   21.614379][  T469] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.625761][  T469] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/6/file1 supports timestamps until 2038 (0x7fffffff)
[pid   457] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   448] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... mount resumed>)        = 0
[pid   457] <... write resumed>)        = 262144
[pid   457] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   448] <... futex resumed>)        = 0
[pid   469] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   457] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   448] exit_group(0 <unfinished ...>
[pid   478] <... futex resumed>)        = ?
[pid   457] <... futex resumed>)        = ?
[pid   448] <... exit_group resumed>)   = ?
[pid   478] +++ exited with 0 +++
[pid   457] +++ exited with 0 +++
[pid   448] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=448, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   295] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   295] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   295] unlink("./4/binderfs")      = 0
[pid   295] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   470] <... mount resumed>)        = 0
[pid   470] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   470] chdir("./file1")            = 0
[pid   470] ioctl(4, LOOP_CLR_FD)       = 0
[pid   470] close(4)                    = 0
[pid   470] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   466] <... futex resumed>)        = 0
[pid   466] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   466] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   470] <... futex resumed>)        = 1
[pid   470] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   470] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... openat resumed>)       = 3
[pid   466] <... futex resumed>)        = 0
[pid   466] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   466] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   466] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   466] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[485], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 485
[pid   466] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   466] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   470] <... futex resumed>)        = 1
[pid   470] fallocate(4, 0, 35143, 7)   = 0
[pid   470] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   470] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 485 attached
 <unfinished ...>
[pid   485] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   469] chdir("./file1")            = 0
[pid   485] <... set_robust_list resumed>) = 0
[pid   294] <... umount2 resumed>)      = 0
[pid   294] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./5/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./5/file1")          = 0
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3)                    = 0
[   21.638058][  T471] EXT4-fs (loop3): 1 orphan inode deleted
[   21.639254][  T474] EXT4-fs (loop5): 1 orphan inode deleted
[   21.645500][  T471] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.649462][  T474] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   294] rmdir("./5")                = 0
[pid   294] mkdir("./6", 0777)          = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   474] <... mount resumed>)        = 0
[pid   469] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   485] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   485] <... mount resumed>)        = 0
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   485] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   485] <... futex resumed>)        = 1
[pid   466] <... futex resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   485] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   470] <... futex resumed>)        = 0
[pid   466] <... futex resumed>)        = 1
[pid   470] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   466] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 486
[pid   470] <... open resumed>)         = 5
[pid   470] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   466] <... futex resumed>)        = 0
[pid   470] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   470] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   466] <... futex resumed>)        = 0
[pid   470] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   466] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   470] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   470] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   466] <... futex resumed>)        = 0
[pid   470] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   470] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   466] <... futex resumed>)        = 0
[pid   470] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   466] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 486 attached
 <unfinished ...>
[pid   474] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   471] <... mount resumed>)        = 0
[pid   469] <... ioctl resumed>)        = 0
[pid   486] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   474] <... openat resumed>)       = 3
[pid   471] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   470] <... write resumed>)        = 262144
[pid   469] close(4 <unfinished ...>
[pid   486] <... set_robust_list resumed>) = 0
[pid   474] chdir("./file1" <unfinished ...>
[pid   471] <... openat resumed>)       = 3
[pid   470] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... close resumed>)        = 0
[pid   486] chdir("./6" <unfinished ...>
[pid   474] <... chdir resumed>)        = 0
[pid   471] chdir("./file1" <unfinished ...>
[pid   469] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   466] <... futex resumed>)        = 0
[pid   470] <... futex resumed>)        = 1
[pid   486] <... chdir resumed>)        = 0
[pid   474] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   471] <... chdir resumed>)        = 0
[pid   469] <... futex resumed>)        = 1
[pid   465] <... futex resumed>)        = 0
[pid   486] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   474] <... ioctl resumed>)        = 0
[pid   471] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   470] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] exit_group(0 <unfinished ...>
[pid   465] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] <... prctl resumed>)        = 0
[pid   485] <... futex resumed>)        = ?
[pid   474] close(4 <unfinished ...>
[pid   471] <... ioctl resumed>)        = 0
[pid   470] <... futex resumed>)        = ?
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   466] <... exit_group resumed>)   = ?
[pid   465] <... futex resumed>)        = 0
[pid   486] setpgid(0, 0 <unfinished ...>
[pid   485] +++ exited with 0 +++
[pid   474] <... close resumed>)        = 0
[pid   471] close(4 <unfinished ...>
[pid   470] +++ exited with 0 +++
[pid   469] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   465] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] <... setpgid resumed>)      = 0
[pid   474] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... close resumed>)        = 0
[pid   466] +++ exited with 0 +++
[pid   486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   474] <... futex resumed>)        = 1
[pid   471] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=466, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   486] <... openat resumed>)       = 3
[pid   474] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] <... futex resumed>)        = 0
[pid   471] <... futex resumed>)        = 1
[pid   469] <... open resumed>)         = 4
[pid   467] <... futex resumed>)        = 0
[pid   486] write(3, "1000", 4 <unfinished ...>
[pid   473] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] <... write resumed>)        = 4
[pid   474] <... futex resumed>)        = 0
[pid   473] <... futex resumed>)        = 1
[pid   471] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   469] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   486] close(3 <unfinished ...>
[pid   474] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   473] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   471] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   469] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   465] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   486] <... close resumed>)        = 0
[pid   486] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   471] <... open resumed>)         = 4
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   465] <... futex resumed>)        = 0
[pid   486] <... symlink resumed>)      = 0
[pid   474] <... open resumed>)         = 4
[pid   471] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   465] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   486] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 1
[pid   469] <... fallocate resumed>)    = 0
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   297] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   486] <... futex resumed>)        = 0
[pid   474] <... futex resumed>)        = 1
[pid   473] <... futex resumed>)        = 0
[pid   471] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] <... openat resumed>)       = 3
[pid   486] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   474] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   469] <... futex resumed>)        = 0
[pid   467] <... futex resumed>)        = 0
[pid   465] <... mmap resumed>)         = 0x7f6005c2e000
[pid   297] fstat(3,  <unfinished ...>
[pid   486] <... mmap resumed>)         = 0x7f600e00f000
[pid   474] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   473] <... futex resumed>)        = 0
[pid   471] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   469] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   486] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   474] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   473] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... fallocate resumed>)    = 0
[pid   467] <... futex resumed>)        = 0
[pid   465] <... mprotect resumed>)     = 0
[pid   297] getdents64(3,  <unfinished ...>
[pid   486] <... mprotect resumed>)     = 0
[pid   474] <... fallocate resumed>)    = 0
[pid   473] <... futex resumed>)        = 0
[pid   471] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   465] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   486] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   474] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   471] <... futex resumed>)        = 0
[pid   467] <... mmap resumed>)         = 0x7f6005c2e000
[pid   297] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   474] <... futex resumed>)        = 0
[pid   473] <... mmap resumed>)         = 0x7f6005c2e000
[pid   471] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   465] <... clone resumed>, parent_tid=[487], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 487
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   486] <... clone resumed>, parent_tid=[488], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 488
[pid   474] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   467] <... mprotect resumed>)     = 0
[pid   465] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] lstat("./5/binderfs",  <unfinished ...>
[pid   486] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   473] <... mprotect resumed>)     = 0
[pid   467] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   465] <... futex resumed>)        = 0
[pid   297] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   486] <... futex resumed>)        = 0
[pid   473] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   465] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] unlink("./5/binderfs" <unfinished ...>
[pid   486] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   467] <... clone resumed>, parent_tid=[489], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 489
[pid   297] <... unlink resumed>)       = 0
[pid   473] <... clone resumed>, parent_tid=[490], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 490
[pid   467] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   473] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] <... futex resumed>)        = 0
./strace-static-x86_64: Process 490 attached
./strace-static-x86_64: Process 489 attached
./strace-static-x86_64: Process 488 attached
./strace-static-x86_64: Process 487 attached
[pid   473] <... futex resumed>)        = 0
[pid   467] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   490] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   489] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   488] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   487] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   490] <... set_robust_list resumed>) = 0
[pid   489] <... set_robust_list resumed>) = 0
[pid   488] <... set_robust_list resumed>) = 0
[pid   487] <... set_robust_list resumed>) = 0
[pid   473] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   490] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   489] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   488] memfd_create("syzkaller", 0 <unfinished ...>
[pid   487] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   490] <... mount resumed>)        = 0
[pid   489] <... mount resumed>)        = 0
[pid   488] <... memfd_create resumed>) = 3
[pid   487] <... mount resumed>)        = 0
[pid   490] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   489] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   487] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] <... futex resumed>)        = 1
[pid   489] <... futex resumed>)        = 1
[pid   488] <... mmap resumed>)         = 0x7f6005c0f000
[pid   487] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   490] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   489] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   488] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   487] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] <... futex resumed>)        = 0
[pid   467] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] <... write resumed>)        = 262144
[pid   488] munmap(0x7f6005c0f000, 262144) = 0
[pid   473] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] <... futex resumed>)        = 1
[pid   465] <... futex resumed>)        = 1
[pid   295] <... umount2 resumed>)      = 0
[pid   488] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   474] <... futex resumed>)        = 0
[pid   473] <... futex resumed>)        = 1
[pid   471] <... futex resumed>)        = 0
[pid   469] <... futex resumed>)        = 0
[pid   467] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   465] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   488] <... openat resumed>)       = 4
[pid   474] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   473] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   471] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   469] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[   21.679177][  T474] ext4 filesystem being mounted at /root/syzkaller.kumyKI/5/file1 supports timestamps until 2038 (0x7fffffff)
[   21.690831][  T471] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/5/file1 supports timestamps until 2038 (0x7fffffff)
[pid   488] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   474] <... open resumed>)         = 5
[pid   471] <... open resumed>)         = 5
[pid   469] <... open resumed>)         = 5
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   474] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] lstat("./4/file1",  <unfinished ...>
[pid   474] <... futex resumed>)        = 1
[pid   473] <... futex resumed>)        = 0
[pid   471] <... futex resumed>)        = 1
[pid   469] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   474] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] umount2("./4/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   474] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   473] <... futex resumed>)        = 0
[pid   471] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   488] <... ioctl resumed>)        = 0
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   474] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   473] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   471] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   469] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   467] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   465] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   474] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   471] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   469] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   295] <... openat resumed>)       = 4
[pid   488] close(3 <unfinished ...>
[pid   474] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] fstat(4,  <unfinished ...>
[pid   488] <... close resumed>)        = 0
[pid   474] <... futex resumed>)        = 1
[pid   473] <... futex resumed>)        = 0
[pid   471] <... futex resumed>)        = 1
[pid   469] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   488] mkdir("./file1", 0777 <unfinished ...>
[pid   474] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] getdents64(4,  <unfinished ...>
[pid   474] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   473] <... futex resumed>)        = 0
[pid   471] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   474] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   473] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   471] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   469] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   467] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   465] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] getdents64(4,  <unfinished ...>
[pid   488] <... mkdir resumed>)        = 0
[pid   474] <... write resumed>)        = 262144
[pid   488] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   474] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   474] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] <... futex resumed>)        = 0
[pid   295] close(4 <unfinished ...>
[pid   473] exit_group(0 <unfinished ...>
[pid   471] <... write resumed>)        = 262144
[pid   469] <... write resumed>)        = 262144
[pid   471] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 1
[pid   469] <... futex resumed>)        = 1
[pid   471] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   297] <... umount2 resumed>)      = 0
[pid   490] <... futex resumed>)        = ?
[pid   474] <... futex resumed>)        = ?
[pid   473] <... exit_group resumed>)   = ?
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   297] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   490] +++ exited with 0 +++
[pid   474] +++ exited with 0 +++
[pid   473] +++ exited with 0 +++
[pid   467] exit_group(0 <unfinished ...>
[pid   465] exit_group(0 <unfinished ...>
[pid   295] rmdir("./4/file1" <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] lstat("./5/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   487] <... futex resumed>)        = ?
[pid   465] <... exit_group resumed>)   = ?
[pid   297] <... openat resumed>)       = 4
[pid   297] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... rmdir resumed>)        = 0
[pid   487] +++ exited with 0 +++
[pid   297] getdents64(4,  <unfinished ...>
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=473, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   489] <... futex resumed>)        = ?
[pid   471] <... futex resumed>)        = ?
[pid   469] <... futex resumed>)        = ?
[pid   467] <... exit_group resumed>)   = ?
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] getdents64(3,  <unfinished ...>
[pid   297] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   297] close(4)                    = 0
[pid   297] rmdir("./5/file1")          = 0
[pid   297] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] close(3)                    = 0
[pid   297] rmdir("./5" <unfinished ...>
[pid   489] +++ exited with 0 +++
[pid   297] <... rmdir resumed>)        = 0
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] mkdir("./6", 0777 <unfinished ...>
[pid   471] +++ exited with 0 +++
[pid   469] +++ exited with 0 +++
[pid   467] +++ exited with 0 +++
[pid   465] +++ exited with 0 +++
[pid   297] <... mkdir resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   298] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=467, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... openat resumed>)       = 3
[pid   295] <... close resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] rmdir("./4" <unfinished ...>
[pid   297] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=465, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   298] <... openat resumed>)       = 3
[pid   297] close(3)                    = 0
[pid   296] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   298] fstat(3,  <unfinished ...>
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] mkdir("./5", 0777 <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 492
[pid   293] <... restart_syscall resumed>) = 0
[pid   298] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   296] <... openat resumed>)       = 3
[pid   298] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] fstat(3,  <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... openat resumed>)       = 3
[pid   298] lstat("./5/binderfs",  <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   296] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] unlink("./5/binderfs" <unfinished ...>
[pid   296] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... unlink resumed>)       = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] close(3 <unfinished ...>
[pid   293] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   298] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] lstat("./5/binderfs",  <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   296] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] fstat(3,  <unfinished ...>
[pid   296] unlink("./5/binderfs" <unfinished ...>
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... unlink resumed>)       = 0
[pid   293] getdents64(3,  <unfinished ...>
[pid   296] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 492 attached
 <unfinished ...>
[pid   492] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   492] <... set_robust_list resumed>) = 0
[pid   293] unlink("./6/binderfs" <unfinished ...>
[pid   492] chdir("./6" <unfinished ...>
[pid   293] <... unlink resumed>)       = 0
[pid   293] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   492] <... chdir resumed>)        = 0
[pid   492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   492] setpgid(0, 0)               = 0
[pid   492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   492] write(3, "1000", 4)         = 4
[pid   492] close(3)                    = 0
[pid   492] symlink("/dev/binderfs", "./binderfs") = 0
[pid   492] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 494
[pid   492] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   492] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   492] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[495], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 495
[pid   492] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   492] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 495 attached
 <unfinished ...>
[pid   495] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   495] memfd_create("syzkaller", 0) = 3
[pid   495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144./strace-static-x86_64: Process 494 attached
 <unfinished ...>
[pid   494] set_robust_list(0x5555572875e0, 24) = 0
[pid   494] chdir("./5")                = 0
[pid   494] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   495] <... write resumed>)        = 262144
[pid   495] munmap(0x7f6005c0f000, 262144) = 0
[pid   495] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[   21.735951][  T488] loop1: detected capacity change from 0 to 512
[pid   495] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   494] <... prctl resumed>)        = 0
[pid   495] <... ioctl resumed>)        = 0
[pid   495] close(3)                    = 0
[pid   495] mkdir("./file1", 0777)      = 0
[pid   495] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   494] setpgid(0, 0)               = 0
[pid   494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   494] write(3, "1000", 4)         = 4
[pid   494] close(3)                    = 0
[pid   494] symlink("/dev/binderfs", "./binderfs") = 0
[pid   494] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   494] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   494] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   494] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[496], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 496
[pid   494] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   494] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 496 attached
 <unfinished ...>
[pid   496] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   496] memfd_create("syzkaller", 0) = 3
[pid   496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   496] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   496] munmap(0x7f6005c0f000, 262144) = 0
[pid   496] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   496] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   496] close(3)                    = 0
[pid   298] <... umount2 resumed>)      = 0
[pid   488] <... mount resumed>)        = 0
[pid   298] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] <... umount2 resumed>)      = 0
[pid   293] <... umount2 resumed>)      = 0
[pid   488] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] lstat("./5/file1",  <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   488] <... openat resumed>)       = 3
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   488] chdir("./file1" <unfinished ...>
[pid   296] lstat("./5/file1",  <unfinished ...>
[pid   293] lstat("./6/file1",  <unfinished ...>
[pid   488] <... chdir resumed>)        = 0
[pid   298] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   488] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   488] <... ioctl resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   488] close(4 <unfinished ...>
[pid   298] <... openat resumed>)       = 4
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] fstat(4,  <unfinished ...>
[pid   296] openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   488] <... close resumed>)        = 0
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   488] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... openat resumed>)       = 4
[pid   293] openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   488] <... futex resumed>)        = 1
[pid   298] getdents64(4,  <unfinished ...>
[pid   296] fstat(4,  <unfinished ...>
[pid   488] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] <... openat resumed>)       = 4
[pid   486] <... futex resumed>)        = 0
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] fstat(4,  <unfinished ...>
[pid   486] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   486] <... futex resumed>)        = 1
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   486] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] getdents64(4,  <unfinished ...>
[pid   298] close(4 <unfinished ...>
[pid   488] <... futex resumed>)        = 0
[pid   296] getdents64(4,  <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   293] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   488] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   298] rmdir("./5/file1" <unfinished ...>
[pid   296] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] getdents64(4,  <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   296] close(4 <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   298] getdents64(3,  <unfinished ...>
[pid   296] <... close resumed>)        = 0
[pid   293] close(4 <unfinished ...>
[pid   488] <... open resumed>)         = 4
[pid   298] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] rmdir("./5/file1" <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   488] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] close(3 <unfinished ...>
[pid   488] <... futex resumed>)        = 1
[pid   486] <... futex resumed>)        = 0
[pid   298] <... close resumed>)        = 0
[pid   296] <... rmdir resumed>)        = 0
[pid   293] rmdir("./6/file1" <unfinished ...>
[pid   488] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   486] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] rmdir("./5" <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   486] <... futex resumed>)        = 0
[pid   293] <... rmdir resumed>)        = 0
[pid   486] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   486] <... futex resumed>)        = 0
[pid   293] getdents64(3,  <unfinished ...>
[pid   486] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   298] mkdir("./6", 0777 <unfinished ...>
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   486] <... mmap resumed>)         = 0x7f6005c2e000
[pid   486] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   298] <... mkdir resumed>)        = 0
[pid   488] <... fallocate resumed>)    = 0
[pid   296] close(3 <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   486] <... mprotect resumed>)     = 0
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   488] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   296] <... close resumed>)        = 0
[pid   293] <... close resumed>)        = 0
[pid   293] rmdir("./6" <unfinished ...>
[pid   296] rmdir("./5" <unfinished ...>
[pid   486] <... clone resumed>, parent_tid=[497], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 497
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   496] mkdir("./file1", 0777 <unfinished ...>
[pid   293] <... rmdir resumed>)        = 0
[pid   486] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... rmdir resumed>)        = 0
[pid   486] <... futex resumed>)        = 0
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   293] mkdir("./7", 0777 <unfinished ...>
[pid   296] mkdir("./6", 0777 <unfinished ...>
[pid   486] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   496] <... mkdir resumed>)        = 0
[pid   496] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   293] <... mkdir resumed>)        = 0
[pid   298] close(3 <unfinished ...>
[pid   296] <... mkdir resumed>)        = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 497 attached
 <unfinished ...>
[pid   497] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   497] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   488] <... futex resumed>)        = 0
[pid   298] <... close resumed>)        = 0
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   497] <... mount resumed>)        = 0
[pid   497] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 498
[pid   296] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   296] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   293] close(3 <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   296] <... close resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   488] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 500
[pid   293] <... clone resumed>, child_tidptr=0x5555572875d0) = 499
[pid   486] <... futex resumed>)        = 0
[pid   486] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] <... futex resumed>)        = 0
[pid   486] <... futex resumed>)        = 1
[pid   488] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   486] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   488] <... open resumed>)         = 5
[pid   488] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   486] <... futex resumed>)        = 0
[pid   488] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   486] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   486] <... futex resumed>)        = 0
[pid   488] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   486] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   488] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   488] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   486] <... futex resumed>)        = 0
[pid   488] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   486] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   486] <... futex resumed>)        = 0
[pid   488] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   486] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   488] <... write resumed>)        = 262144
[pid   488] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   486] <... futex resumed>)        = 0
[pid   488] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   486] exit_group(0 <unfinished ...>
[pid   488] <... futex resumed>)        = ?
[pid   486] <... exit_group resumed>)   = ?
[pid   488] +++ exited with 0 +++
[pid   497] <... futex resumed>)        = ?
[pid   497] +++ exited with 0 +++
[pid   486] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=486, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   294] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, ./strace-static-x86_64: Process 498 attached
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   498] set_robust_list(0x5555572875e0, 24) = 0
[pid   498] chdir("./6")                = 0
[pid   294] getdents64(3,  <unfinished ...>
[pid   498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   498] setpgid(0, 0 <unfinished ...>
[pid   294] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   498] <... setpgid resumed>)      = 0
[pid   294] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[   21.784068][  T488] EXT4-fs (loop1): 1 orphan inode deleted
[   21.784193][  T495] loop4: detected capacity change from 0 to 512
[   21.793911][  T488] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.805856][  T496] loop2: detected capacity change from 0 to 512
[   21.807144][  T488] ext4 filesystem being mounted at /root/syzkaller.6GNILo/6/file1 supports timestamps until 2038 (0x7fffffff)
[pid   294] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./6/binderfs" <unfinished ...>
[pid   498] <... openat resumed>)       = 3
[pid   498] write(3, "1000", 4)         = 4
[pid   294] <... unlink resumed>)       = 0
[pid   498] close(3 <unfinished ...>
[pid   294] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   498] <... close resumed>)        = 0
[pid   498] symlink("/dev/binderfs", "./binderfs") = 0
[pid   498] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   498] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   498] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 499 attached
 <unfinished ...>
[pid   499] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   498] <... clone resumed>, parent_tid=[504], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 504
[pid   498] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   498] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   499] <... set_robust_list resumed>) = 0
[pid   499] chdir("./7")                = 0
[pid   499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   499] setpgid(0, 0)               = 0
[pid   499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   499] write(3, "1000", 4)         = 4
[pid   499] close(3)                    = 0
[pid   499] symlink("/dev/binderfs", "./binderfs") = 0
./strace-static-x86_64: Process 500 attached
[pid   500] set_robust_list(0x5555572875e0, 24) = 0
[pid   500] chdir("./6" <unfinished ...>
[pid   499] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... umount2 resumed>)      = 0
[pid   499] <... futex resumed>)        = 0
[pid   499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   499] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   500] <... chdir resumed>)        = 0
[pid   499] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   500] setpgid(0, 0)               = 0
[pid   500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   294] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   499] <... clone resumed>, parent_tid=[505], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 505
[pid   294] lstat("./6/file1",  <unfinished ...>
[pid   499] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   499] <... futex resumed>)        = 0
[pid   499] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   500] <... openat resumed>)       = 3
[pid   500] write(3, "1000", 4)         = 4
[pid   500] close(3)                    = 0
[pid   500] symlink("/dev/binderfs", "./binderfs") = 0
[pid   294] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   500] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   500] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   294] <... openat resumed>)       = 4
[pid   500] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   294] fstat(4,  <unfinished ...>
[pid   500] <... mprotect resumed>)     = 0
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   500] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   294] getdents64(4,  <unfinished ...>
[pid   500] <... clone resumed>, parent_tid=[506], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 506
[pid   500] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   500] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 504 attached
 <unfinished ...>
[pid   504] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   504] memfd_create("syzkaller", 0) = 3
[pid   504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   504] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144./strace-static-x86_64: Process 506 attached
 <unfinished ...>
[pid   506] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   506] memfd_create("syzkaller", 0) = 3
[pid   506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   504] <... write resumed>)        = 262144
[pid   504] munmap(0x7f6005c0f000, 262144) = 0
[pid   504] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   504] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   506] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   506] munmap(0x7f6005c0f000, 262144) = 0
[pid   506] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   506] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   294] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   504] <... ioctl resumed>)        = 0
[pid   504] close(3)                    = 0
[pid   504] mkdir("./file1", 0777 <unfinished ...>
[pid   294] close(4 <unfinished ...>
[pid   504] <... mkdir resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   504] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   294] rmdir("./6/file1")          = 0
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3 <unfinished ...>
[pid   506] <... ioctl resumed>)        = 0
[pid   506] close(3)                    = 0
[pid   506] mkdir("./file1", 0777 <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   506] <... mkdir resumed>)        = 0
[pid   506] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[   21.872481][  T495] EXT4-fs (loop4): 1 orphan inode deleted
[   21.876267][  T504] loop5: detected capacity change from 0 to 512
[   21.878052][  T495] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.886408][  T506] loop3: detected capacity change from 0 to 512
[   21.904389][  T495] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/6/file1 supports timestamps until 2038 (0x7fffffff)
[   21.905282][  T496] EXT4-fs (loop2): 1 orphan inode deleted
[pid   294] rmdir("./6")                = 0
[pid   495] <... mount resumed>)        = 0
[pid   495] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   495] chdir("./file1")            = 0
[pid   495] ioctl(4, LOOP_CLR_FD)       = 0
[pid   294] mkdir("./7", 0777 <unfinished ...>
[pid   495] close(4)                    = 0
[pid   495] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   492] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   492] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] <... futex resumed>)        = 1
[pid   495] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   294] <... mkdir resumed>)        = 0
./strace-static-x86_64: Process 505 attached
[pid   505] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   505] memfd_create("syzkaller", 0) = 3
[pid   505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   505] munmap(0x7f6005c0f000, 262144) = 0
[pid   505] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   505] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   495] <... open resumed>)         = 4
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   505] <... ioctl resumed>)        = 0
[pid   505] close(3)                    = 0
[pid   505] mkdir("./file1", 0777)      = 0
[pid   505] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   495] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   492] <... futex resumed>)        = 0
[pid   495] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   492] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... fallocate resumed>)    = 0
[pid   492] <... futex resumed>)        = 0
[pid   495] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   492] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... futex resumed>)        = 0
[pid   492] <... futex resumed>)        = 0
[pid   495] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   492] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   492] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   492] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[510], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 510
[pid   492] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   492] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 510 attached
 <unfinished ...>
[pid   510] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   510] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL) = 0
[pid   510] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   492] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... futex resumed>)        = 0
[pid   492] <... futex resumed>)        = 1
[pid   495] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   492] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] <... open resumed>)         = 5
[pid   495] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   492] <... futex resumed>)        = 0
[pid   495] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   492] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   492] <... futex resumed>)        = 0
[pid   495] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   492] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] <... futex resumed>)        = 0
[pid   492] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   495] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   492] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   492] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   510] <... futex resumed>)        = 1
[   21.926758][  T505] loop0: detected capacity change from 0 to 512
[   21.929645][  T496] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   21.944123][  T496] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/5/file1 supports timestamps until 2038 (0x7fffffff)
[   21.944264][  T504] EXT4-fs (loop5): 1 orphan inode deleted
[   21.962532][  T506] EXT4-fs (loop3): 1 orphan inode deleted
[pid   510] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   496] <... mount resumed>)        = 0
[pid   496] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   496] chdir("./file1")            = 0
[pid   496] ioctl(4, LOOP_CLR_FD)       = 0
[pid   495] <... write resumed>)        = 262144
[pid   495] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   492] exit_group(0)               = ?
[pid   496] close(4 <unfinished ...>
[pid   495] <... futex resumed>)        = ?
[pid   495] +++ exited with 0 +++
[pid   294] <... openat resumed>)       = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 513
[pid   496] <... close resumed>)        = 0
[pid   496] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   510] <... futex resumed>)        = ?
[pid   510] +++ exited with 0 +++
[pid   492] +++ exited with 0 +++
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=492, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   297] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   297] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./6/binderfs")      = 0
[pid   297] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   496] <... futex resumed>)        = 1
[pid   494] <... futex resumed>)        = 0
[pid   297] <... umount2 resumed>)      = 0
[pid   496] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   494] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   494] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   496] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   496] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] lstat("./6/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   496] <... open resumed>)         = 4
[pid   297] <... openat resumed>)       = 4
[pid   297] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   297] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   496] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   494] <... futex resumed>)        = 0
[pid   494] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   496] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   494] <... futex resumed>)        = 0
[pid   494] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   494] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] close(4 <unfinished ...>
[pid   494] <... mmap resumed>)         = 0x7f6005c2e000
[pid   297] <... close resumed>)        = 0
[pid   494] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] rmdir("./6/file1" <unfinished ...>
[pid   496] <... fallocate resumed>)    = 0
[pid   494] <... mprotect resumed>)     = 0
[pid   297] <... rmdir resumed>)        = 0
[pid   494] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   496] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   494] <... clone resumed>, parent_tid=[515], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 515
[pid   297] close(3 <unfinished ...>
[pid   496] <... futex resumed>)        = 0
[pid   494] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   494] <... futex resumed>)        = 0
[pid   297] rmdir("./6" <unfinished ...>
[pid   496] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   494] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   297] mkdir("./7", 0777)          = 0
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   297] ioctl(3, LOOP_CLR_FD)       = 0
[pid   297] close(3)                    = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 516
./strace-static-x86_64: Process 513 attached
[pid   513] set_robust_list(0x5555572875e0, 24) = 0
[pid   513] chdir("./7")                = 0
[pid   513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   513] setpgid(0, 0)               = 0
[pid   513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   513] write(3, "1000", 4)         = 4
[pid   513] close(3)                    = 0
[pid   513] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 515 attached
./strace-static-x86_64: Process 516 attached
) = 0
[pid   516] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   515] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   513] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... set_robust_list resumed>) = 0
[pid   515] <... set_robust_list resumed>) = 0
[pid   513] <... futex resumed>)        = 0
[pid   515] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[   21.968076][  T506] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   516] chdir("./7" <unfinished ...>
[pid   515] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   516] <... chdir resumed>)        = 0
[pid   515] <... futex resumed>)        = 1
[pid   513] <... mmap resumed>)         = 0x7f600e00f000
[pid   494] <... futex resumed>)        = 0
[pid   516] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   515] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   513] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   505] <... mount resumed>)        = 0
[   22.004618][  T505] EXT4-fs (loop0): 1 orphan inode deleted
[   22.010417][  T505] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.021959][  T505] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/7/file1 supports timestamps until 2038 (0x7fffffff)
[   22.022771][  T504] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   494] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... prctl resumed>)        = 0
[pid   513] <... mprotect resumed>)     = 0
[pid   506] <... mount resumed>)        = 0
[pid   505] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   494] <... futex resumed>)        = 1
[pid   516] setpgid(0, 0 <unfinished ...>
[pid   513] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   505] <... openat resumed>)       = 3
[pid   494] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] <... setpgid resumed>)      = 0
[pid   505] chdir("./file1" <unfinished ...>
[pid   516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   513] <... clone resumed>, parent_tid=[518], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 518
[pid   505] <... chdir resumed>)        = 0
[pid   516] <... openat resumed>)       = 3
[pid   513] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   516] write(3, "1000", 4 <unfinished ...>
[pid   513] <... futex resumed>)        = 0
[pid   505] <... ioctl resumed>)        = 0
[pid   516] <... write resumed>)        = 4
[pid   513] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   505] close(4 <unfinished ...>
[pid   516] close(3 <unfinished ...>
[pid   505] <... close resumed>)        = 0
[pid   516] <... close resumed>)        = 0
[pid   505] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   505] <... futex resumed>)        = 1
[pid   499] <... futex resumed>)        = 0
[pid   516] <... symlink resumed>)      = 0
[pid   505] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   499] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   516] <... futex resumed>)        = 0
[pid   499] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   516] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   516] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[519], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 519
[pid   516] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   516] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   506] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   506] chdir("./file1")            = 0
[pid   506] ioctl(4, LOOP_CLR_FD)       = 0
[pid   506] close(4 <unfinished ...>
[pid   496] <... futex resumed>)        = 0
[pid   506] <... close resumed>)        = 0
[pid   506] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   496] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   500] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   500] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   505] <... open resumed>)         = 4
[pid   506] <... futex resumed>)        = 1
[pid   496] <... open resumed>)         = 5
[pid   506] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   496] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   494] <... futex resumed>)        = 0
[pid   506] <... open resumed>)         = 4
[pid   494] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   496] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   506] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   496] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   494] <... futex resumed>)        = 0
[pid   505] <... futex resumed>)        = 1
[pid   499] <... futex resumed>)        = 0
[pid   494] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   506] <... futex resumed>)        = 1
[pid   505] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   499] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   496] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   504] <... mount resumed>)        = 0
[pid   504] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   504] chdir("./file1")            = 0
[pid   504] ioctl(4, LOOP_CLR_FD)       = 0
[pid   504] close(4)                    = 0
[pid   504] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... futex resumed>)        = 0
[pid   498] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   498] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   500] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   499] <... futex resumed>)        = 0
[pid   496] <... futex resumed>)        = 0
[pid   494] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   505] <... fallocate resumed>)    = 0
[pid   500] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   494] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] <... fallocate resumed>)    = 0
[pid   500] <... futex resumed>)        = 0
[pid   494] <... futex resumed>)        = 0
[pid   505] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   496] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   500] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   494] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   500] <... mmap resumed>)         = 0x7f6005c2e000
[pid   499] <... mmap resumed>)         = 0x7f6005c2e000
[pid   504] <... futex resumed>)        = 1
[pid   504] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000./strace-static-x86_64: Process 518 attached
 <unfinished ...>
[pid   518] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   518] memfd_create("syzkaller", 0) = 3
[pid   518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   500] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   506] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] <... futex resumed>)        = 0
[pid   500] <... mprotect resumed>)     = 0
[pid   499] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   500] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   499] <... mprotect resumed>)     = 0
[pid   506] <... futex resumed>)        = 0
[pid   505] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   499] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   500] <... clone resumed>, parent_tid=[520], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 520
[pid   506] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   500] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] <... clone resumed>, parent_tid=[521], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 521
[pid   518] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   499] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   500] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   499] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   496] <... write resumed>)        = 262144
[pid   496] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   504] <... open resumed>)         = 4
[pid   518] <... write resumed>)        = 262144
[pid   496] <... futex resumed>)        = 1
[pid   494] <... futex resumed>)        = 0
[pid   504] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 521 attached
./strace-static-x86_64: Process 520 attached
./strace-static-x86_64: Process 519 attached
 <unfinished ...>
[pid   518] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   494] exit_group(0)               = ?
[pid   521] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   518] <... munmap resumed>)       = 0
[pid   515] <... futex resumed>)        = ?
[pid   521] <... set_robust_list resumed>) = 0
[pid   518] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   515] +++ exited with 0 +++
[pid   521] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   518] <... openat resumed>)       = 4
[pid   521] <... mount resumed>)        = 0
[pid   518] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   504] <... futex resumed>)        = 1
[pid   498] <... futex resumed>)        = 0
[pid   521] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   521] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   496] +++ exited with 0 +++
[pid   494] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=494, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   295] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   295] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   295] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   295] unlink("./5/binderfs")      = 0
[pid   295] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   519] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   519] memfd_create("syzkaller", 0) = 3
[pid   519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   520] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   520] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   504] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   498] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... futex resumed>)        = 0
[pid   505] <... futex resumed>)        = 0
[pid   499] <... futex resumed>)        = 1
[pid   498] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   499] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   498] <... futex resumed>)        = 0
[pid   505] <... open resumed>)         = 5
[pid   498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   505] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] <... mount resumed>)        = 0
[pid   498] <... mmap resumed>)         = 0x7f6005c2e000
[pid   505] <... futex resumed>)        = 1
[pid   505] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   498] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   504] <... fallocate resumed>)    = 0
[pid   499] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... mprotect resumed>)     = 0
[pid   505] <... futex resumed>)        = 0
[pid   504] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] <... futex resumed>)        = 1
[pid   498] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   518] <... ioctl resumed>)        = 0
[pid   505] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   520] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   504] <... futex resumed>)        = 0
[pid   499] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   505] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   498] <... clone resumed>, parent_tid=[522], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 522
[pid   505] <... futex resumed>)        = 0
[pid   504] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   499] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   498] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] <... futex resumed>)        = 1
[pid   520] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   519] <... write resumed>)        = 262144
[pid   519] munmap(0x7f6005c0f000, 262144) = 0
[pid   519] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[   22.033870][  T506] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/6/file1 supports timestamps until 2038 (0x7fffffff)
[   22.046254][  T504] ext4 filesystem being mounted at /root/syzkaller.kumyKI/6/file1 supports timestamps until 2038 (0x7fffffff)
[   22.088860][  T518] loop1: detected capacity change from 0 to 512
[pid   519] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 522 attached
 <unfinished ...>
[pid   518] close(3 <unfinished ...>
[pid   505] <... write resumed>)        = 262144
[pid   500] <... futex resumed>)        = 0
[pid   499] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   498] <... futex resumed>)        = 0
[pid   500] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   518] <... close resumed>)        = 0
[pid   505] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   519] <... ioctl resumed>)        = 0
[pid   519] close(3)                    = 0
[pid   519] mkdir("./file1", 0777 <unfinished ...>
[pid   500] <... futex resumed>)        = 1
[pid   506] <... futex resumed>)        = 0
[pid   518] mkdir("./file1", 0777 <unfinished ...>
[pid   505] <... futex resumed>)        = 1
[pid   500] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   506] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   499] exit_group(0 <unfinished ...>
[pid   506] <... open resumed>)         = 5
[pid   499] <... exit_group resumed>)   = ?
[pid   521] <... futex resumed>)        = ?
[pid   506] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] +++ exited with 0 +++
[pid   506] <... futex resumed>)        = 1
[pid   500] <... futex resumed>)        = 0
[pid   505] +++ exited with 0 +++
[pid   499] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=499, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   500] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   506] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   500] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   506] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   500] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   506] <... futex resumed>)        = 0
[pid   500] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   519] <... mkdir resumed>)        = 0
[pid   506] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   519] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   293] <... restart_syscall resumed>) = 0
[pid   293] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   293] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./7/binderfs")      = 0
[pid   293] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   522] <... set_robust_list resumed>) = 0
[pid   500] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   522] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL) = 0
[pid   522] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... futex resumed>)        = 0
[pid   498] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   498] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   522] <... futex resumed>)        = 1
[pid   522] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   504] <... futex resumed>)        = 0
[pid   504] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   518] <... mkdir resumed>)        = 0
[pid   506] <... write resumed>)        = 262144
[pid   504] <... open resumed>)         = 5
[pid   518] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   506] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   504] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   498] <... futex resumed>)        = 0
[pid   498] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   498] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   506] <... futex resumed>)        = 1
[pid   295] <... umount2 resumed>)      = 0
[pid   500] <... futex resumed>)        = 0
[pid   504] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   506] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   504] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   500] exit_group(0 <unfinished ...>
[pid   504] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   520] <... futex resumed>)        = ?
[pid   506] <... futex resumed>)        = ?
[pid   504] <... futex resumed>)        = 1
[pid   500] <... exit_group resumed>)   = ?
[pid   498] <... futex resumed>)        = 0
[pid   520] +++ exited with 0 +++
[pid   506] +++ exited with 0 +++
[pid   504] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   504] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   500] +++ exited with 0 +++
[pid   498] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] lstat("./5/file1",  <unfinished ...>
[pid   504] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   498] <... futex resumed>)        = 0
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=500, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   498] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   296] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] unlink("./6/binderfs")      = 0
[pid   296] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] umount2("./5/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   504] <... write resumed>)        = 262144
[pid   295] fstat(4,  <unfinished ...>
[pid   504] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   504] <... futex resumed>)        = 1
[pid   498] <... futex resumed>)        = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   504] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   498] exit_group(0 <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   522] <... futex resumed>)        = ?
[pid   504] <... futex resumed>)        = ?
[pid   498] <... exit_group resumed>)   = ?
[pid   295] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   504] +++ exited with 0 +++
[pid   295] close(4)                    = 0
[pid   295] rmdir("./5/file1")          = 0
[pid   522] +++ exited with 0 +++
[pid   498] +++ exited with 0 +++
[pid   295] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=498, si_uid=0, si_status=0, si_utime=0, si_stime=7} ---
[pid   295] close(3 <unfinished ...>
[pid   298] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] rmdir("./5" <unfinished ...>
[pid   298] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   298] <... openat resumed>)       = 3
[pid   295] mkdir("./6", 0777 <unfinished ...>
[pid   298] fstat(3,  <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   298] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   298] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] close(3 <unfinished ...>
[pid   298] lstat("./6/binderfs",  <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   298] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   298] unlink("./6/binderfs"./strace-static-x86_64: Process 525 attached
)      = 0
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 525
[pid   298] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   525] set_robust_list(0x5555572875e0, 24) = 0
[pid   525] chdir("./6")                = 0
[pid   525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   525] setpgid(0, 0)               = 0
[pid   525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   525] write(3, "1000", 4)         = 4
[pid   525] close(3)                    = 0
[pid   525] symlink("/dev/binderfs", "./binderfs") = 0
[pid   525] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   525] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   525] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[527], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 527
[pid   525] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   525] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 527 attached
 <unfinished ...>
[pid   527] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   527] memfd_create("syzkaller", 0) = 3
[pid   527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[   22.100965][  T519] loop4: detected capacity change from 0 to 512
[pid   527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   527] munmap(0x7f6005c0f000, 262144) = 0
[pid   527] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   527] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   527] close(3)                    = 0
[pid   527] mkdir("./file1", 0777)      = 0
[pid   527] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   293] <... umount2 resumed>)      = 0
[pid   293] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./7/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   293] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] close(4)                    = 0
[pid   293] rmdir("./7/file1")          = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3)                    = 0
[pid   293] rmdir("./7")                = 0
[pid   293] mkdir("./8", 0777)          = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 529
[   22.137291][  T518] EXT4-fs (loop1): 1 orphan inode deleted
[   22.139558][  T527] loop2: detected capacity change from 0 to 512
[   22.143309][  T519] EXT4-fs (loop4): 1 orphan inode deleted
[   22.162020][  T518] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.165885][  T519] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
./strace-static-x86_64: Process 529 attached
[pid   298] <... umount2 resumed>)      = 0
[pid   296] <... umount2 resumed>)      = 0
[pid   529] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   296] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   529] <... set_robust_list resumed>) = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   529] chdir("./8" <unfinished ...>
[pid   296] lstat("./6/file1",  <unfinished ...>
[pid   529] <... chdir resumed>)        = 0
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   529] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   296] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   529] <... prctl resumed>)        = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   529] setpgid(0, 0 <unfinished ...>
[pid   296] openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   529] <... setpgid resumed>)      = 0
[pid   296] <... openat resumed>)       = 4
[pid   529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   296] fstat(4,  <unfinished ...>
[pid   529] <... openat resumed>)       = 3
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   529] write(3, "1000", 4 <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   529] <... write resumed>)        = 4
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   529] close(3 <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   529] <... close resumed>)        = 0
[pid   296] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   529] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   518] <... mount resumed>)        = 0
[pid   298] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   529] <... symlink resumed>)      = 0
[pid   296] <... close resumed>)        = 0
[pid   529] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] rmdir("./6/file1" <unfinished ...>
[pid   529] <... futex resumed>)        = 0
[pid   296] <... rmdir resumed>)        = 0
[pid   529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   529] <... mmap resumed>)         = 0x7f600e00f000
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   529] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   529] <... mprotect resumed>)     = 0
[pid   296] <... close resumed>)        = 0
[pid   529] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   296] rmdir("./6")                = 0
[pid   529] <... clone resumed>, parent_tid=[532], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 532
[pid   296] mkdir("./7", 0777 <unfinished ...>
[pid   529] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... mkdir resumed>)        = 0
[pid   529] <... futex resumed>)        = 0
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   529] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   296] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   296] close(3)                    = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 533
./strace-static-x86_64: Process 533 attached
./strace-static-x86_64: Process 532 attached
[pid   519] <... mount resumed>)        = 0
[pid   518] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   532] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   519] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   518] <... openat resumed>)       = 3
[pid   298] lstat("./6/file1",  <unfinished ...>
[pid   532] <... set_robust_list resumed>) = 0
[pid   519] <... openat resumed>)       = 3
[pid   518] chdir("./file1" <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   532] memfd_create("syzkaller", 0 <unfinished ...>
[pid   519] chdir("./file1" <unfinished ...>
[pid   518] <... chdir resumed>)        = 0
[pid   298] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   533] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   532] <... memfd_create resumed>) = 3
[pid   519] <... chdir resumed>)        = 0
[pid   518] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   533] <... set_robust_list resumed>) = 0
[pid   532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   519] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   518] <... ioctl resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   532] <... mmap resumed>)         = 0x7f6005c0f000
[pid   519] <... ioctl resumed>)        = 0
[pid   518] close(4 <unfinished ...>
[pid   298] <... openat resumed>)       = 4
[pid   533] chdir("./7" <unfinished ...>
[pid   532] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   519] close(4 <unfinished ...>
[pid   518] <... close resumed>)        = 0
[pid   298] fstat(4,  <unfinished ...>
[pid   533] <... chdir resumed>)        = 0
[pid   532] <... write resumed>)        = 262144
[pid   519] <... close resumed>)        = 0
[pid   518] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   532] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   519] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] <... futex resumed>)        = 1
[pid   513] <... futex resumed>)        = 0
[pid   298] getdents64(4,  <unfinished ...>
[pid   532] <... munmap resumed>)       = 0
[pid   519] <... futex resumed>)        = 1
[pid   518] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   516] <... futex resumed>)        = 0
[pid   513] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   532] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   519] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   518] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   516] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] <... futex resumed>)        = 0
[pid   298] getdents64(4,  <unfinished ...>
[pid   532] <... openat resumed>)       = 4
[pid   519] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   518] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   516] <... futex resumed>)        = 0
[pid   513] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[   22.173825][  T518] ext4 filesystem being mounted at /root/syzkaller.6GNILo/7/file1 supports timestamps until 2038 (0x7fffffff)
[   22.195975][  T519] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/7/file1 supports timestamps until 2038 (0x7fffffff)
[   22.209338][  T527] EXT4-fs (loop2): 1 orphan inode deleted
[   22.222813][  T527] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   532] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   519] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   516] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] close(4 <unfinished ...>
[pid   533] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   519] <... open resumed>)         = 4
[pid   518] <... open resumed>)         = 4
[pid   298] <... close resumed>)        = 0
[pid   533] <... prctl resumed>)        = 0
[pid   519] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] rmdir("./6/file1" <unfinished ...>
[pid   533] setpgid(0, 0 <unfinished ...>
[pid   519] <... futex resumed>)        = 1
[pid   518] <... futex resumed>)        = 1
[pid   516] <... futex resumed>)        = 0
[pid   513] <... futex resumed>)        = 0
[pid   298] <... rmdir resumed>)        = 0
[pid   533] <... setpgid resumed>)      = 0
[pid   519] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   518] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   516] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   519] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   518] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   516] <... futex resumed>)        = 0
[pid   513] <... futex resumed>)        = 0
[pid   298] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   533] <... openat resumed>)       = 3
[pid   516] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   519] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   513] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   298] close(3 <unfinished ...>
[pid   533] write(3, "1000", 4 <unfinished ...>
[pid   516] <... futex resumed>)        = 0
[pid   298] <... close resumed>)        = 0
[pid   519] <... fallocate resumed>)    = 0
[pid   513] <... futex resumed>)        = 0
[pid   298] rmdir("./6" <unfinished ...>
[pid   533] <... write resumed>)        = 4
[pid   519] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] <... fallocate resumed>)    = 0
[pid   516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   533] close(3 <unfinished ...>
[pid   519] <... futex resumed>)        = 0
[pid   518] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... mmap resumed>)         = 0x7f6005c2e000
[pid   513] <... mmap resumed>)         = 0x7f6005c2e000
[pid   298] mkdir("./7", 0777 <unfinished ...>
[pid   533] <... close resumed>)        = 0
[pid   519] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   518] <... futex resumed>)        = 0
[pid   516] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   513] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   298] <... mkdir resumed>)        = 0
[pid   516] <... mprotect resumed>)     = 0
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   513] <... mprotect resumed>)     = 0
[pid   533] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   518] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   516] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   513] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   533] <... symlink resumed>)      = 0
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   298] close(3)                    = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   533] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] <... clone resumed>, parent_tid=[534], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 534
[pid   533] <... futex resumed>)        = 0
[pid   516] <... clone resumed>, parent_tid=[535], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 535
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 536
[pid   533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   516] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] <... mmap resumed>)         = 0x7f600e00f000
[pid   516] <... futex resumed>)        = 0
[pid   513] <... futex resumed>)        = 0
[pid   533] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   516] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   533] <... mprotect resumed>)     = 0
[pid   533] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 536 attached
./strace-static-x86_64: Process 535 attached
./strace-static-x86_64: Process 534 attached
 <unfinished ...>
[pid   532] <... ioctl resumed>)        = 0
[pid   536] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   535] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   534] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   533] <... clone resumed>, parent_tid=[537], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 537
[pid   532] close(3./strace-static-x86_64: Process 537 attached
 <unfinished ...>
[pid   533] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   533] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   537] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   537] memfd_create("syzkaller", 0) = 3
[pid   537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   534] <... set_robust_list resumed>) = 0
[pid   536] <... set_robust_list resumed>) = 0
[pid   535] <... set_robust_list resumed>) = 0
[pid   534] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   532] <... close resumed>)        = 0
[pid   535] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   534] <... mount resumed>)        = 0
[pid   535] <... mount resumed>)        = 0
[pid   534] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   534] <... futex resumed>)        = 1
[pid   513] <... futex resumed>)        = 0
[pid   535] <... futex resumed>)        = 1
[pid   516] <... futex resumed>)        = 0
[pid   535] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   534] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   516] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... futex resumed>)        = 1
[pid   519] <... futex resumed>)        = 0
[pid   513] <... futex resumed>)        = 1
[pid   518] <... futex resumed>)        = 0
[pid   519] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   518] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   516] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   519] <... open resumed>)         = 5
[pid   518] <... open resumed>)         = 5
[pid   519] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   519] <... futex resumed>)        = 1
[pid   516] <... futex resumed>)        = 0
[pid   516] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   519] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   518] <... futex resumed>)        = 1
[pid   516] <... futex resumed>)        = 0
[pid   513] <... futex resumed>)        = 0
[pid   519] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   518] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   516] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   519] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   513] <... futex resumed>)        = 0
[pid   519] <... futex resumed>)        = 0
[pid   518] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   513] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   519] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   516] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   516] <... futex resumed>)        = 0
[pid   537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   537] munmap(0x7f6005c0f000, 262144) = 0
[pid   537] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   537] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   536] chdir("./7" <unfinished ...>
[pid   532] mkdir("./file1", 0777 <unfinished ...>
[pid   527] <... mount resumed>)        = 0
[pid   519] <... write resumed>)        = 262144
[pid   518] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   537] <... ioctl resumed>)        = 0
[pid   537] close(3 <unfinished ...>
[pid   536] <... chdir resumed>)        = 0
[pid   537] <... close resumed>)        = 0
[pid   537] mkdir("./file1", 0777)      = 0
[pid   532] <... mkdir resumed>)        = 0
[pid   519] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] <... futex resumed>)        = 1
[pid   516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   519] <... futex resumed>)        = 0
[pid   518] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   516] exit_group(0 <unfinished ...>
[pid   513] <... futex resumed>)        = 0
[pid   536] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[   22.225867][  T532] loop0: detected capacity change from 0 to 512
[   22.245732][  T527] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/6/file1 supports timestamps until 2038 (0x7fffffff)
[   22.266979][  T537] loop3: detected capacity change from 0 to 512
[pid   537] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   513] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   516] <... exit_group resumed>)   = ?
[pid   535] <... futex resumed>)        = ?
[pid   513] <... futex resumed>)        = 0
[pid   518] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   535] +++ exited with 0 +++
[pid   513] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   527] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   527] chdir("./file1")            = 0
[pid   527] ioctl(4, LOOP_CLR_FD)       = 0
[pid   527] close(4)                    = 0
[pid   519] +++ exited with 0 +++
[pid   516] +++ exited with 0 +++
[pid   527] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... futex resumed>)        = 0
[pid   525] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   525] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   527] <... futex resumed>)        = 1
[pid   527] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   527] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... futex resumed>)        = 0
[pid   525] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   525] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   525] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   525] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[539], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 539
[pid   525] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   525] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   527] <... futex resumed>)        = 1
[pid   527] fallocate(4, 0, 35143, 7)   = 0
[pid   527] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   527] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   532] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   536] <... prctl resumed>)        = 0
[pid   536] setpgid(0, 0)               = 0
[pid   536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   536] write(3, "1000", 4)         = 4
[pid   536] close(3)                    = 0
[pid   536] symlink("/dev/binderfs", "./binderfs") = 0
[pid   536] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   536] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   536] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[540], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 540
[pid   536] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 540 attached
 <unfinished ...>
[pid   540] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   540] memfd_create("syzkaller", 0) = 3
[pid   540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   540] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   540] munmap(0x7f6005c0f000, 262144) = 0
[pid   540] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   540] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=516, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   540] <... ioctl resumed>)        = 0
[pid   540] close(3)                    = 0
[pid   297] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   540] mkdir("./file1", 0777)      = 0
[pid   540] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 539 attached
 <unfinished ...>
[pid   539] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   539] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[pid   539] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... futex resumed>)        = 0
[pid   525] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] <... futex resumed>)        = 0
[pid   525] <... futex resumed>)        = 1
[pid   527] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   525] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   527] <... open resumed>)         = 5
[pid   527] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   525] <... futex resumed>)        = 0
[pid   527] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   525] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   525] <... futex resumed>)        = 0
[pid   527] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   527] <... futex resumed>)        = 0
[pid   525] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   527] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   525] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   518] <... write resumed>)        = 262144
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   525] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   539] <... futex resumed>)        = 1
[pid   297] lstat("./7/binderfs",  <unfinished ...>
[pid   539] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   297] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./7/binderfs")      = 0
[pid   518] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   527] <... write resumed>)        = 262144
[pid   518] <... futex resumed>)        = 1
[pid   513] <... futex resumed>)        = 0
[pid   513] exit_group(0)               = ?
[pid   534] <... futex resumed>)        = 231
[pid   534] +++ exited with 0 +++
[pid   527] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... futex resumed>)        = 0
[pid   525] exit_group(0)               = ?
[pid   527] <... futex resumed>)        = ?
[pid   527] +++ exited with 0 +++
[pid   539] <... futex resumed>)        = ?
[pid   539] +++ exited with 0 +++
[pid   525] +++ exited with 0 +++
[pid   518] +++ exited with 0 +++
[pid   513] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=525, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   295] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   295] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   295] unlink("./6/binderfs")      = 0
[pid   295] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=513, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   294] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./7/binderfs")      = 0
[pid   294] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   537] <... mount resumed>)        = 0
[pid   537] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   537] chdir("./file1")            = 0
[pid   537] ioctl(4, LOOP_CLR_FD)       = 0
[pid   537] close(4)                    = 0
[pid   537] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   533] <... futex resumed>)        = 0
[   22.284147][  T540] loop5: detected capacity change from 0 to 512
[   22.300823][  T537] EXT4-fs (loop3): 1 orphan inode deleted
[   22.307492][  T537] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.319647][  T537] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/7/file1 supports timestamps until 2038 (0x7fffffff)
[   22.322468][  T540] EXT4-fs (loop5): 1 orphan inode deleted
[pid   537] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   533] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   537] <... futex resumed>)        = 0
[pid   533] <... futex resumed>)        = 1
[pid   537] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   533] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] <... mount resumed>)        = 0
[pid   540] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   540] chdir("./file1")            = 0
[pid   540] ioctl(4, LOOP_CLR_FD)       = 0
[pid   540] close(4)                    = 0
[pid   540] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   536] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   540] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   540] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   536] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   536] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   536] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[547], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 547
[pid   536] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   540] fallocate(4, 0, 35143, 7)   = 0
[pid   537] <... open resumed>)         = 4
[pid   540] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   540] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   537] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... umount2 resumed>)      = 0
[pid   537] <... futex resumed>)        = 1
[pid   533] <... futex resumed>)        = 0
[pid   533] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   533] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   533] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   537] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   533] <... mprotect resumed>)     = 0
[pid   537] <... fallocate resumed>)    = 0
[pid   533] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[548], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 548
[pid   537] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   537] <... futex resumed>)        = 0
[pid   533] <... futex resumed>)        = 0
[pid   537] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   533] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] lstat("./7/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   297] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   297] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   297] close(4)                    = 0
[pid   297] rmdir("./7/file1")          = 0
[pid   297] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] close(3)                    = 0
[pid   297] rmdir("./7")                = 0
[pid   297] mkdir("./8", 0777)          = 0
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   297] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   297] close(3)                    = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 549
[   22.338486][  T540] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.350197][  T540] ext4 filesystem being mounted at /root/syzkaller.kumyKI/7/file1 supports timestamps until 2038 (0x7fffffff)
[   22.353033][  T532] EXT4-fs (loop0): 1 orphan inode deleted
[   22.368996][  T532] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
./strace-static-x86_64: Process 548 attached
[pid   548] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   548] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL) = 0
[pid   548] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] <... futex resumed>)        = 0
[pid   533] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   537] <... futex resumed>)        = 0
[pid   533] <... futex resumed>)        = 1
[pid   537] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   533] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   537] <... open resumed>)         = 5
[pid   537] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   533] <... futex resumed>)        = 0
[pid   537] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   533] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   537] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   533] <... futex resumed>)        = 0
[pid   537] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   537] <... futex resumed>)        = 0
[pid   533] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   537] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   533] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   533] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   537] <... write resumed>)        = 262144
[pid   537] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   533] <... futex resumed>)        = 0
[pid   533] exit_group(0)               = ?
[pid   537] +++ exited with 0 +++
[pid   548] <... futex resumed>)        = ?
./strace-static-x86_64: Process 549 attached
[pid   549] set_robust_list(0x5555572875e0, 24) = 0
[pid   549] chdir("./8")                = 0
[pid   549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   549] setpgid(0, 0)               = 0
[pid   549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
./strace-static-x86_64: Process 547 attached
[pid   549] write(3, "1000", 4 <unfinished ...>
[pid   548] +++ exited with 0 +++
[pid   533] +++ exited with 0 +++
[pid   532] <... mount resumed>)        = 0
[pid   549] <... write resumed>)        = 4
[pid   547] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   532] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=533, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   549] close(3 <unfinished ...>
[pid   547] <... set_robust_list resumed>) = 0
[pid   532] <... openat resumed>)       = 3
[pid   532] chdir("./file1")            = 0
[pid   532] ioctl(4, LOOP_CLR_FD)       = 0
[pid   532] close(4 <unfinished ...>
[pid   296] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   296] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] unlink("./7/binderfs")      = 0
[pid   296] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... umount2 resumed>)      = 0
[pid   532] <... close resumed>)        = 0
[pid   532] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   532] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   295] <... umount2 resumed>)      = 0
[pid   529] <... futex resumed>)        = 0
[pid   547] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   529] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   294] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   529] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   547] <... mount resumed>)        = 0
[pid   294] lstat("./7/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   549] <... close resumed>)        = 0
[pid   549] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   532] <... futex resumed>)        = 0
[pid   295] lstat("./6/file1",  <unfinished ...>
[pid   294] fstat(4,  <unfinished ...>
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] umount2("./6/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] getdents64(4,  <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   294] getdents64(4,  <unfinished ...>
[pid   295] <... openat resumed>)       = 4
[pid   294] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] fstat(4,  <unfinished ...>
[pid   294] close(4 <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] <... close resumed>)        = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   294] rmdir("./7/file1" <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] <... rmdir resumed>)        = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   294] getdents64(3,  <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] close(4 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   295] rmdir("./6/file1" <unfinished ...>
[pid   294] rmdir("./7" <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   294] <... rmdir resumed>)        = 0
[pid   295] getdents64(3,  <unfinished ...>
[pid   294] mkdir("./8", 0777 <unfinished ...>
[pid   549] <... symlink resumed>)      = 0
[pid   547] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] <... mkdir resumed>)        = 0
[pid   549] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   547] <... futex resumed>)        = 1
[pid   536] <... futex resumed>)        = 0
[pid   532] <... open resumed>)         = 4
[pid   549] <... futex resumed>)        = 0
[pid   547] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   536] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   540] <... futex resumed>)        = 0
[pid   536] <... futex resumed>)        = 1
[pid   532] <... futex resumed>)        = 1
[pid   529] <... futex resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   549] <... mmap resumed>)         = 0x7f600e00f000
[pid   540] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   536] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   532] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   529] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   540] <... open resumed>)         = 5
[pid   295] <... close resumed>)        = 0
[pid   294] <... openat resumed>)       = 3
[pid   529] <... futex resumed>)        = 0
[pid   549] <... mprotect resumed>)     = 0
[pid   540] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   536] <... futex resumed>)        = 0
[pid   529] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] rmdir("./6" <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   540] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   536] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   529] <... futex resumed>)        = 0
[pid   549] <... clone resumed>, parent_tid=[550], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 550
[pid   540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   536] <... futex resumed>)        = 0
[pid   532] <... fallocate resumed>)    = 0
[pid   529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   549] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   536] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   532] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] <... mmap resumed>)         = 0x7f6005c2e000
[pid   295] <... rmdir resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   549] <... futex resumed>)        = 0
[pid   540] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   532] <... futex resumed>)        = 0
[pid   529] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   295] mkdir("./7", 0777 <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   549] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   540] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   536] <... futex resumed>)        = 0
[pid   529] <... mprotect resumed>)     = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   540] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   536] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   536] <... futex resumed>)        = 0
[pid   540] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   536] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 552 attached
./strace-static-x86_64: Process 551 attached
./strace-static-x86_64: Process 550 attached
 <unfinished ...>
[pid   529] <... clone resumed>, parent_tid=[552], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 552
[pid   529] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 551
[pid   529] <... futex resumed>)        = 0
[pid   295] <... openat resumed>)       = 3
[pid   529] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   540] <... write resumed>)        = 262144
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   540] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   536] <... futex resumed>)        = 0
[pid   540] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   536] exit_group(0 <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   536] <... exit_group resumed>)   = ?
[pid   552] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   552] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid   547] <... futex resumed>)        = ?
[pid   540] <... futex resumed>)        = ?
[pid   552] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] +++ exited with 0 +++
[pid   552] <... futex resumed>)        = 1
[pid   529] <... futex resumed>)        = 0
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 553
[pid   552] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   529] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] <... futex resumed>)        = 0
[pid   529] <... futex resumed>)        = 1
[pid   532] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   529] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   547] +++ exited with 0 +++
[pid   536] +++ exited with 0 +++
[pid   532] <... open resumed>)         = 5
[pid   532] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=536, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   532] <... futex resumed>)        = 1
[pid   529] <... futex resumed>)        = 0
[pid   298] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   532] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   529] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... restart_syscall resumed>) = 0
[pid   532] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   529] <... futex resumed>)        = 0
[pid   532] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   529] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   532] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   298] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   551] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   532] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   551] <... set_robust_list resumed>) = 0
[pid   532] <... futex resumed>)        = 1
[pid   529] <... futex resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   551] chdir("./8" <unfinished ...>
[pid   532] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   529] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   551] <... chdir resumed>)        = 0
[pid   532] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   529] <... futex resumed>)        = 0
[pid   298] fstat(3,  <unfinished ...>
[pid   551] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   532] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   529] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   551] <... prctl resumed>)        = 0
[pid   532] <... write resumed>)        = 262144
[pid   298] lstat("./7/binderfs",  <unfinished ...>
[pid   551] setpgid(0, 0 <unfinished ...>
[pid   532] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   550] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   551] <... setpgid resumed>)      = 0
[pid   532] <... futex resumed>)        = 1
[pid   529] <... futex resumed>)        = 0
[pid   298] unlink("./7/binderfs" <unfinished ...>
[pid   551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   550] <... set_robust_list resumed>) = 0
[pid   532] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   529] exit_group(0 <unfinished ...>
[pid   298] <... unlink resumed>)       = 0
[pid   552] <... futex resumed>)        = ?
[pid   551] <... openat resumed>)       = 3
[pid   532] <... futex resumed>)        = ?
[pid   529] <... exit_group resumed>)   = ?
[pid   298] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   552] +++ exited with 0 +++
./strace-static-x86_64: Process 553 attached
[pid   553] set_robust_list(0x5555572875e0, 24) = 0
[   22.381277][  T532] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/8/file1 supports timestamps until 2038 (0x7fffffff)
[pid   553] chdir("./7")                = 0
[pid   553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   553] setpgid(0, 0)               = 0
[pid   553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   532] +++ exited with 0 +++
[pid   529] +++ exited with 0 +++
[pid   553] write(3, "1000", 4 <unfinished ...>
[pid   551] write(3, "1000", 4 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=529, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   551] <... write resumed>)        = 4
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   551] close(3)                    = 0
[pid   551] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   553] <... write resumed>)        = 4
[pid   551] <... symlink resumed>)      = 0
[pid   551] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   551] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   553] close(3 <unfinished ...>
[pid   550] memfd_create("syzkaller", 0 <unfinished ...>
[pid   293] <... restart_syscall resumed>) = 0
[pid   553] <... close resumed>)        = 0
[pid   551] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   550] <... memfd_create resumed>) = 3
[pid   553] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   551] <... mprotect resumed>)     = 0
[pid   550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   553] <... symlink resumed>)      = 0
[pid   551] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   550] <... mmap resumed>)         = 0x7f6005c0f000
[pid   293] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   553] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   551] <... clone resumed>, parent_tid=[554], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 554
[pid   293] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   551] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   551] <... futex resumed>)        = 0
[pid   293] fstat(3,  <unfinished ...>
[pid   551] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(3,  <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   293] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   293] unlink("./8/binderfs" <unfinished ...>
[pid   553] <... mmap resumed>)         = 0x7f600e00f000
[pid   293] <... unlink resumed>)       = 0
./strace-static-x86_64: Process 554 attached
[pid   553] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   550] <... write resumed>)        = 262144
[pid   554] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   553] <... mprotect resumed>)     = 0
[pid   554] <... set_robust_list resumed>) = 0
[pid   553] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   550] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   554] memfd_create("syzkaller", 0 <unfinished ...>
[pid   293] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 555 attached
 <unfinished ...>
[pid   554] <... memfd_create resumed>) = 3
[pid   553] <... clone resumed>, parent_tid=[555], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 555
[pid   550] <... munmap resumed>)       = 0
[pid   554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   553] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... mmap resumed>)         = 0x7f6005c0f000
[pid   553] <... futex resumed>)        = 0
[pid   550] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   555] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   554] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   553] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   554] <... write resumed>)        = 262144
[pid   550] <... openat resumed>)       = 4
[pid   550] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   555] <... set_robust_list resumed>) = 0
[pid   296] <... umount2 resumed>)      = 0
[pid   554] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   550] <... ioctl resumed>)        = 0
[pid   554] <... munmap resumed>)       = 0
[pid   550] close(3 <unfinished ...>
[pid   555] memfd_create("syzkaller", 0 <unfinished ...>
[pid   296] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   554] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   550] <... close resumed>)        = 0
[pid   554] <... openat resumed>)       = 4
[pid   550] mkdir("./file1", 0777 <unfinished ...>
[pid   554] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   550] <... mkdir resumed>)        = 0
[pid   554] <... ioctl resumed>)        = 0
[pid   550] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   298] <... umount2 resumed>)      = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   554] close(3)                    = 0
[pid   554] mkdir("./file1", 0777 <unfinished ...>
[pid   298] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] lstat("./7/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] lstat("./7/file1",  <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   298] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] fstat(4,  <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   298] <... openat resumed>)       = 4
[pid   296] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   298] fstat(4,  <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... close resumed>)        = 0
[pid   298] getdents64(4,  <unfinished ...>
[pid   296] rmdir("./7/file1" <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   554] <... mkdir resumed>)        = 0
[pid   554] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   296] <... rmdir resumed>)        = 0
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] getdents64(3,  <unfinished ...>
[pid   298] close(4 <unfinished ...>
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   298] <... close resumed>)        = 0
[pid   298] rmdir("./7/file1" <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   296] <... close resumed>)        = 0
[pid   298] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] rmdir("./7" <unfinished ...>
[pid   555] <... memfd_create resumed>) = 3
[pid   555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   296] <... rmdir resumed>)        = 0
[pid   298] close(3 <unfinished ...>
[pid   296] mkdir("./8", 0777 <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   296] <... mkdir resumed>)        = 0
[pid   298] rmdir("./7" <unfinished ...>
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   298] mkdir("./8", 0777 <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   298] <... mkdir resumed>)        = 0
[pid   296] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   296] <... close resumed>)        = 0
[pid   555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   555] munmap(0x7f6005c0f000, 262144) = 0
[pid   555] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   555] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   298] close(3)                    = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 558
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 559
./strace-static-x86_64: Process 558 attached
[pid   558] set_robust_list(0x5555572875e0, 24) = 0
[pid   293] <... umount2 resumed>)      = 0
[pid   293] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./8/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   293] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] close(4)                    = 0
[pid   293] rmdir("./8/file1")          = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3)                    = 0
[pid   293] rmdir("./8")                = 0
[pid   293] mkdir("./9", 0777)          = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 560
[   22.445530][  T550] loop4: detected capacity change from 0 to 512
[   22.453421][  T554] loop1: detected capacity change from 0 to 512
[   22.467594][  T555] loop2: detected capacity change from 0 to 512
[   22.475074][  T550] EXT4-fs (loop4): 1 orphan inode deleted
[pid   558] chdir("./8")                = 0
[pid   558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   558] setpgid(0, 0)               = 0
[pid   558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   558] write(3, "1000", 4)         = 4
[pid   558] close(3)                    = 0
[pid   558] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 559 attached
./strace-static-x86_64: Process 560 attached
 <unfinished ...>
[pid   555] <... ioctl resumed>)        = 0
[pid   558] <... symlink resumed>)      = 0
[pid   558] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   558] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   558] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[563], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 563
[pid   558] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   560] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   559] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   560] <... set_robust_list resumed>) = 0
[pid   559] <... set_robust_list resumed>) = 0
[pid   555] close(3 <unfinished ...>
[pid   560] chdir("./9")                = 0
[pid   560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   560] setpgid(0, 0 <unfinished ...>
[pid   559] chdir("./8" <unfinished ...>
[pid   555] <... close resumed>)        = 0
[pid   550] <... mount resumed>)        = 0
[pid   560] <... setpgid resumed>)      = 0
[pid   560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   560] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 563 attached
[pid   560] close(3 <unfinished ...>
[pid   563] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   560] <... close resumed>)        = 0
[pid   563] <... set_robust_list resumed>) = 0
[pid   560] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   563] memfd_create("syzkaller", 0 <unfinished ...>
[pid   560] <... symlink resumed>)      = 0
[pid   563] <... memfd_create resumed>) = 3
[pid   560] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   563] <... mmap resumed>)         = 0x7f6005c0f000
[pid   560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   560] <... mmap resumed>)         = 0x7f600e00f000
[pid   560] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   560] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[564], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 564
[pid   560] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   560] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   563] <... write resumed>)        = 262144
[pid   563] munmap(0x7f6005c0f000, 262144) = 0
[pid   559] <... chdir resumed>)        = 0
[pid   555] mkdir("./file1", 0777 <unfinished ...>
[pid   554] <... mount resumed>)        = 0
[pid   550] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 564 attached
 <unfinished ...>
[pid   563] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   559] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... mkdir resumed>)        = 0
[pid   554] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   550] <... openat resumed>)       = 3
[pid   559] <... prctl resumed>)        = 0
[pid   555] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   554] <... openat resumed>)       = 3
[pid   550] chdir("./file1" <unfinished ...>
[pid   564] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   559] setpgid(0, 0 <unfinished ...>
[pid   554] chdir("./file1" <unfinished ...>
[pid   550] <... chdir resumed>)        = 0
[pid   564] <... set_robust_list resumed>) = 0
[pid   563] <... openat resumed>)       = 4
[pid   559] <... setpgid resumed>)      = 0
[pid   554] <... chdir resumed>)        = 0
[pid   550] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   564] memfd_create("syzkaller", 0 <unfinished ...>
[pid   563] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[   22.491704][  T550] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.504410][  T554] EXT4-fs (loop1): 1 orphan inode deleted
[   22.510145][  T554] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.521279][  T550] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/8/file1 supports timestamps until 2038 (0x7fffffff)
[   22.533114][  T554] ext4 filesystem being mounted at /root/syzkaller.6GNILo/8/file1 supports timestamps until 2038 (0x7fffffff)
[pid   559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   554] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   550] <... ioctl resumed>)        = 0
[pid   564] <... memfd_create resumed>) = 3
[pid   559] <... openat resumed>)       = 3
[pid   559] write(3, "1000", 4 <unfinished ...>
[pid   554] <... ioctl resumed>)        = 0
[pid   550] close(4 <unfinished ...>
[pid   564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   563] <... ioctl resumed>)        = 0
[pid   559] <... write resumed>)        = 4
[pid   554] close(4 <unfinished ...>
[pid   550] <... close resumed>)        = 0
[pid   564] <... mmap resumed>)         = 0x7f6005c0f000
[pid   563] close(3 <unfinished ...>
[pid   559] close(3 <unfinished ...>
[pid   554] <... close resumed>)        = 0
[pid   550] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   563] <... close resumed>)        = 0
[pid   559] <... close resumed>)        = 0
[pid   554] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = 1
[pid   549] <... futex resumed>)        = 0
[pid   564] <... write resumed>)        = 262144
[pid   563] mkdir("./file1", 0777 <unfinished ...>
[pid   559] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   554] <... futex resumed>)        = 1
[pid   551] <... futex resumed>)        = 0
[pid   550] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   563] <... mkdir resumed>)        = 0
[pid   559] <... symlink resumed>)      = 0
[pid   554] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   551] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... futex resumed>)        = 0
[pid   564] <... munmap resumed>)       = 0
[pid   563] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   559] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   551] <... futex resumed>)        = 0
[pid   550] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   549] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   564] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   554] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   551] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] <... open resumed>)         = 4
[pid   564] <... openat resumed>)       = 4
[pid   559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   550] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... open resumed>)         = 4
[pid   564] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   559] <... mmap resumed>)         = 0x7f600e00f000
[pid   554] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = 1
[pid   549] <... futex resumed>)        = 0
[pid   559] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   554] <... futex resumed>)        = 1
[pid   551] <... futex resumed>)        = 0
[pid   550] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] <... mprotect resumed>)     = 0
[pid   554] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   551] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... futex resumed>)        = 0
[pid   559] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   551] <... futex resumed>)        = 0
[pid   550] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   549] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   551] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... fallocate resumed>)    = 0
[pid   549] <... futex resumed>)        = 0
[pid   564] <... ioctl resumed>)        = 0
[pid   559] <... clone resumed>, parent_tid=[566], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 566
[pid   554] <... fallocate resumed>)    = 0
[pid   550] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   559] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   551] <... futex resumed>)        = 0
[pid   550] <... futex resumed>)        = 0
[pid   549] <... mmap resumed>)         = 0x7f6005c2e000
[pid   564] close(3 <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   554] <... futex resumed>)        = 0
[pid   551] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   550] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   564] <... close resumed>)        = 0
[pid   559] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   554] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   551] <... mmap resumed>)         = 0x7f6005c2e000
[pid   549] <... mprotect resumed>)     = 0
[pid   564] mkdir("./file1", 0777 <unfinished ...>
[pid   551] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   549] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   564] <... mkdir resumed>)        = 0
[pid   551] <... mprotect resumed>)     = 0
[pid   564] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   549] <... clone resumed>, parent_tid=[568], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 568
[pid   551] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   549] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   551] <... clone resumed>, parent_tid=[570], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 570
[pid   549] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   551] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   551] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 566 attached
 <unfinished ...>
[pid   566] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   566] memfd_create("syzkaller", 0) = 3
[pid   566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
./strace-static-x86_64: Process 570 attached
./strace-static-x86_64: Process 568 attached
[pid   570] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   568] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   570] <... set_robust_list resumed>) = 0
[pid   570] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   568] <... set_robust_list resumed>) = 0
[pid   570] <... mount resumed>)        = 0
[pid   568] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   570] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   551] <... futex resumed>)        = 0
[pid   570] <... futex resumed>)        = 1
[pid   551] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... futex resumed>)        = 0
[pid   551] <... futex resumed>)        = 1
[pid   554] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   551] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   554] <... open resumed>)         = 5
[pid   554] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   551] <... futex resumed>)        = 0
[pid   554] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   551] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   551] <... futex resumed>)        = 0
[pid   554] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   551] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   554] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   554] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   551] <... futex resumed>)        = 0
[pid   554] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   551] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   551] <... futex resumed>)        = 0
[pid   554] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   551] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   570] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   568] <... mount resumed>)        = 0
[pid   554] <... write resumed>)        = 262144
[pid   554] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   551] <... futex resumed>)        = 0
[pid   554] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   551] exit_group(0 <unfinished ...>
[pid   554] <... futex resumed>)        = ?
[pid   551] <... exit_group resumed>)   = ?
[pid   554] +++ exited with 0 +++
[pid   570] <... futex resumed>)        = ?
[pid   568] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   566] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[   22.547832][  T563] loop3: detected capacity change from 0 to 512
[   22.561603][  T564] loop0: detected capacity change from 0 to 512
[   22.573656][  T555] EXT4-fs (loop2): 1 orphan inode deleted
[   22.579376][  T555] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   570] +++ exited with 0 +++
[pid   568] <... futex resumed>)        = 1
[pid   551] +++ exited with 0 +++
[pid   549] <... futex resumed>)        = 0
[pid   549] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = 0
[pid   549] <... futex resumed>)        = 1
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=551, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   550] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   549] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] <... open resumed>)         = 5
[pid   550] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   549] <... futex resumed>)        = 0
[pid   550] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... futex resumed>)        = 0
[pid   550] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   549] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   550] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   550] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   568] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   550] <... futex resumed>)        = 1
[pid   549] <... futex resumed>)        = 0
[pid   294] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   550] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... futex resumed>)        = 0
[pid   294] <... openat resumed>)       = 3
[pid   550] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   549] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] <... write resumed>)        = 262144
[pid   294] fstat(3,  <unfinished ...>
[pid   550] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   550] <... futex resumed>)        = 1
[pid   549] <... futex resumed>)        = 0
[pid   294] getdents64(3,  <unfinished ...>
[pid   550] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] exit_group(0 <unfinished ...>
[pid   568] <... futex resumed>)        = ?
[pid   566] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   550] <... futex resumed>)        = ?
[pid   549] <... exit_group resumed>)   = ?
[pid   568] +++ exited with 0 +++
[pid   566] <... munmap resumed>)       = 0
[pid   550] +++ exited with 0 +++
[pid   549] +++ exited with 0 +++
[pid   294] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   566] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   566] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=549, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   294] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] lstat("./8/binderfs",  <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   566] <... ioctl resumed>)        = 0
[pid   566] close(3)                    = 0
[pid   566] mkdir("./file1", 0777 <unfinished ...>
[pid   294] unlink("./8/binderfs" <unfinished ...>
[pid   297] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   294] <... unlink resumed>)       = 0
[pid   297] <... openat resumed>)       = 3
[pid   294] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   566] <... mkdir resumed>)        = 0
[pid   566] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   297] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./8/binderfs")      = 0
[   22.598683][  T563] EXT4-fs (loop3): 1 orphan inode deleted
[   22.610641][  T564] EXT4-fs (loop0): 1 orphan inode deleted
[   22.619146][  T566] loop5: detected capacity change from 0 to 512
[   22.625556][  T563] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.636719][  T564] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   297] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   563] <... mount resumed>)        = 0
[pid   563] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   563] chdir("./file1")            = 0
[pid   563] ioctl(4, LOOP_CLR_FD)       = 0
[pid   563] close(4)                    = 0
[pid   563] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   558] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] <... futex resumed>)        = 1
[pid   563] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   563] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   558] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   558] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   558] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[575], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 575
[pid   558] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] <... futex resumed>)        = 1
[pid   563] fallocate(4, 0, 35143, 7)   = 0
[pid   563] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   563] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 575 attached
 <unfinished ...>
[pid   575] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   575] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL) = 0
[pid   575] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   558] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   558] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] <... futex resumed>)        = 0
[pid   563] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   563] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   558] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] <... futex resumed>)        = 1
[pid   563] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   563] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   558] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] <... futex resumed>)        = 1
[pid   563] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190) = 262144
[pid   563] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   558] exit_group(0)               = ?
[pid   563] <... futex resumed>)        = ?
[pid   563] +++ exited with 0 +++
[pid   575] <... futex resumed>)        = ?
[pid   575] +++ exited with 0 +++
[pid   558] +++ exited with 0 +++
[pid   555] <... mount resumed>)        = 0
[pid   555] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   555] chdir("./file1")            = 0
[pid   555] ioctl(4, LOOP_CLR_FD)       = 0
[pid   555] close(4)                    = 0
[pid   555] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   553] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   553] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] <... futex resumed>)        = 1
[pid   555] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   555] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   553] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   553] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   553] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   553] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[576], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 576
[pid   553] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   553] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] <... futex resumed>)        = 1
[pid   555] fallocate(4, 0, 35143, 7)   = 0
[pid   555] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   555] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 576 attached
 <unfinished ...>
[pid   576] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   576] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[pid   576] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   553] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   553] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] <... futex resumed>)        = 0
[pid   555] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   555] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   553] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   553] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] <... futex resumed>)        = 1
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=558, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   555] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   555] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   553] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   553] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] <... futex resumed>)        = 1
[pid   555] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   294] <... umount2 resumed>)      = 0
[pid   294] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] lstat("./8/file1",  <unfinished ...>
[pid   296] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   294] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... openat resumed>)       = 3
[pid   294] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] fstat(3,  <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   294] <... openat resumed>)       = 4
[pid   296] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] fstat(4,  <unfinished ...>
[pid   296] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] getdents64(4,  <unfinished ...>
[pid   296] lstat("./8/binderfs",  <unfinished ...>
[pid   294] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] getdents64(4,  <unfinished ...>
[pid   296] unlink("./8/binderfs" <unfinished ...>
[pid   294] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] <... unlink resumed>)       = 0
[pid   294] close(4 <unfinished ...>
[pid   296] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   294] rmdir("./8/file1")          = 0
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3)                    = 0
[pid   294] rmdir("./8")                = 0
[pid   294] mkdir("./9", 0777)          = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 578
[pid   555] <... write resumed>)        = 262144
[pid   555] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   553] exit_group(0)               = ?
[pid   555] <... futex resumed>)        = ?
[pid   555] +++ exited with 0 +++
[pid   576] <... futex resumed>)        = ?
[pid   576] +++ exited with 0 +++
[pid   553] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=553, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   295] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   295] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   295] unlink("./7/binderfs")      = 0
[pid   295] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 578 attached
[   22.653335][  T555] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/7/file1 supports timestamps until 2038 (0x7fffffff)
[   22.665788][  T563] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/8/file1 supports timestamps until 2038 (0x7fffffff)
[   22.671686][  T564] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/9/file1 supports timestamps until 2038 (0x7fffffff)
 <unfinished ...>
[pid   578] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   564] <... mount resumed>)        = 0
[pid   297] <... umount2 resumed>)      = 0
[pid   297] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] lstat("./8/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   297] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   297] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   297] close(4)                    = 0
[pid   297] rmdir("./8/file1")          = 0
[pid   578] <... set_robust_list resumed>) = 0
[pid   297] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] close(3)                    = 0
[pid   578] chdir("./9" <unfinished ...>
[pid   297] rmdir("./8" <unfinished ...>
[pid   578] <... chdir resumed>)        = 0
[pid   297] <... rmdir resumed>)        = 0
[pid   297] mkdir("./9", 0777)          = 0
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   297] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   297] close(3)                    = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 579
[pid   578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   564] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   296] <... umount2 resumed>)      = 0
[pid   296] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... umount2 resumed>)      = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] lstat("./8/file1",  <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] lstat("./7/file1",  <unfinished ...>
[pid   296] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] umount2("./7/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... openat resumed>)       = 4
[pid   295] openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] fstat(4,  <unfinished ...>
[pid   295] <... openat resumed>)       = 4
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] fstat(4,  <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] getdents64(4,  <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] <... close resumed>)        = 0
[pid   295] close(4 <unfinished ...>
[pid   296] rmdir("./8/file1" <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   296] <... rmdir resumed>)        = 0
[pid   295] rmdir("./7/file1" <unfinished ...>
[pid   578] setpgid(0, 0 <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] getdents64(3,  <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] <... close resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   296] rmdir("./8" <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   578] <... setpgid resumed>)      = 0
[pid   296] <... rmdir resumed>)        = 0
[pid   295] rmdir("./7" <unfinished ...>
[pid   296] mkdir("./9", 0777 <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   296] <... mkdir resumed>)        = 0
[pid   295] mkdir("./8", 0777 <unfinished ...>
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   296] <... openat resumed>)       = 3
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   296] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   296] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   296] <... close resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   578] <... openat resumed>)       = 3
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   578] write(3, "1000", 4 <unfinished ...>
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 580
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 581
./strace-static-x86_64: Process 579 attached
[pid   579] set_robust_list(0x5555572875e0, 24) = 0
[pid   579] chdir("./9")                = 0
[pid   579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   579] setpgid(0, 0)               = 0
[pid   579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
./strace-static-x86_64: Process 581 attached
[pid   581] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   579] write(3, "1000", 4)         = 4
[pid   581] <... set_robust_list resumed>) = 0
[pid   579] close(3 <unfinished ...>
[pid   581] chdir("./8" <unfinished ...>
[pid   579] <... close resumed>)        = 0
[pid   579] symlink("/dev/binderfs", "./binderfs") = 0
[pid   581] <... chdir resumed>)        = 0
[pid   581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   581] setpgid(0, 0./strace-static-x86_64: Process 580 attached
)               = 0
[pid   581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   580] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   579] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   579] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   578] <... write resumed>)        = 4
[pid   579] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   581] <... openat resumed>)       = 3
[pid   578] close(3 <unfinished ...>
[pid   580] <... set_robust_list resumed>) = 0
[pid   580] chdir("./9" <unfinished ...>
[pid   579] <... mprotect resumed>)     = 0
[pid   581] write(3, "1000", 4 <unfinished ...>
[pid   580] <... chdir resumed>)        = 0
[pid   579] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   581] <... write resumed>)        = 4
[pid   580] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   581] close(3 <unfinished ...>
[pid   580] <... prctl resumed>)        = 0
[pid   581] <... close resumed>)        = 0
[pid   580] setpgid(0, 0 <unfinished ...>
[pid   579] <... clone resumed>, parent_tid=[582], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 582
[pid   581] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   580] <... setpgid resumed>)      = 0
[pid   581] <... symlink resumed>)      = 0
[pid   580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   579] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... openat resumed>)       = 3
[pid   579] <... futex resumed>)        = 0
[pid   581] <... futex resumed>)        = 0
[pid   580] write(3, "1000", 4 <unfinished ...>
[pid   579] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   578] <... close resumed>)        = 0
[pid   581] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   580] <... write resumed>)        = 4
[pid   578] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   581] <... mmap resumed>)         = 0x7f600e00f000
[pid   580] close(3 <unfinished ...>
[pid   581] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   580] <... close resumed>)        = 0
[pid   578] <... symlink resumed>)      = 0
[pid   581] <... mprotect resumed>)     = 0
[pid   580] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   581] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   580] <... symlink resumed>)      = 0
[pid   578] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   581] <... clone resumed>, parent_tid=[583], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 583
[pid   580] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   578] <... mmap resumed>)         = 0x7f600e00f000
[pid   581] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   580] <... mmap resumed>)         = 0x7f600e00f000
[pid   580] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   578] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   580] <... mprotect resumed>)     = 0
[pid   578] <... mprotect resumed>)     = 0
[pid   580] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   578] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   580] <... clone resumed>, parent_tid=[584], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 584
[pid   580] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   580] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 582 attached
 <unfinished ...>
[pid   582] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   578] <... clone resumed>, parent_tid=[585], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 585
[pid   578] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   578] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   582] memfd_create("syzkaller", 0) = 3
[pid   582] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
./strace-static-x86_64: Process 583 attached
[pid   583] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   583] memfd_create("syzkaller", 0) = 3
[pid   583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
./strace-static-x86_64: Process 584 attached
[pid   584] set_robust_list(0x7f600e02f9e0, 24./strace-static-x86_64: Process 585 attached
) = 0
[pid   582] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   585] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   584] memfd_create("syzkaller", 0 <unfinished ...>
[pid   585] <... set_robust_list resumed>) = 0
[pid   584] <... memfd_create resumed>) = 3
[pid   585] memfd_create("syzkaller", 0 <unfinished ...>
[pid   584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   582] <... write resumed>)        = 262144
[pid   585] <... memfd_create resumed>) = 3
[pid   584] <... mmap resumed>)         = 0x7f6005c0f000
[pid   583] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   564] <... openat resumed>)       = 3
[pid   585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   582] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   564] chdir("./file1" <unfinished ...>
[pid   585] <... mmap resumed>)         = 0x7f6005c0f000
[pid   582] <... munmap resumed>)       = 0
[pid   582] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   564] <... chdir resumed>)        = 0
[pid   584] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   582] <... openat resumed>)       = 4
[pid   564] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   585] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   583] <... write resumed>)        = 262144
[pid   582] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   564] <... ioctl resumed>)        = 0
[   22.707983][  T566] EXT4-fs (loop5): 1 orphan inode deleted
[   22.718136][  T566] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   564] close(4)                    = 0
[pid   584] <... write resumed>)        = 262144
[pid   564] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] <... write resumed>)        = 262144
[pid   583] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   582] <... ioctl resumed>)        = 0
[pid   564] <... futex resumed>)        = 1
[pid   560] <... futex resumed>)        = 0
[pid   564] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   560] <... futex resumed>)        = 0
[pid   564] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   560] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   564] <... open resumed>)         = 4
[pid   584] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   564] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] <... munmap resumed>)       = 0
[pid   564] <... futex resumed>)        = 1
[pid   560] <... futex resumed>)        = 0
[pid   564] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   564] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   560] <... futex resumed>)        = 0
[pid   584] <... openat resumed>)       = 4
[pid   564] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   560] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   564] <... fallocate resumed>)    = 0
[pid   560] <... futex resumed>)        = 0
[pid   585] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   583] <... munmap resumed>)       = 0
[pid   582] close(3 <unfinished ...>
[pid   564] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] <... munmap resumed>)       = 0
[pid   583] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   582] <... close resumed>)        = 0
[pid   585] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   583] <... openat resumed>)       = 4
[pid   582] mkdir("./file1", 0777 <unfinished ...>
[pid   585] <... openat resumed>)       = 4
[pid   583] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   582] <... mkdir resumed>)        = 0
[pid   585] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   584] <... ioctl resumed>)        = 0
[pid   583] <... ioctl resumed>)        = 0
[pid   582] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   583] close(3 <unfinished ...>
[pid   585] <... ioctl resumed>)        = 0
[pid   583] <... close resumed>)        = 0
[pid   585] close(3 <unfinished ...>
[pid   583] mkdir("./file1", 0777 <unfinished ...>
[pid   585] <... close resumed>)        = 0
[pid   583] <... mkdir resumed>)        = 0
[pid   564] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] <... mmap resumed>)         = 0x7f6005c2e000
[pid   585] mkdir("./file1", 0777 <unfinished ...>
[pid   583] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   585] <... mkdir resumed>)        = 0
[pid   584] close(3 <unfinished ...>
[pid   560] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   585] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   584] <... close resumed>)        = 0
[pid   560] <... mprotect resumed>)     = 0
[pid   560] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   566] <... mount resumed>)        = 0
[pid   584] mkdir("./file1", 0777 <unfinished ...>
[pid   566] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   560] <... clone resumed>, parent_tid=[586], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 586
[pid   566] <... openat resumed>)       = 3
[pid   566] chdir("./file1")            = 0
[pid   566] ioctl(4, LOOP_CLR_FD)       = 0
[pid   566] close(4)                    = 0
[pid   566] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   560] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 1
[pid   559] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   566] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   584] <... mkdir resumed>)        = 0
[pid   559] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 586 attached
 <unfinished ...>
[pid   584] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   566] <... open resumed>)         = 4
[pid   566] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   559] <... futex resumed>)        = 0
[pid   559] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   559] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   586] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   566] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   559] <... mmap resumed>)         = 0x7f6005c2e000
[pid   566] <... fallocate resumed>)    = 0
[pid   559] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   566] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] <... mprotect resumed>)     = 0
[   22.759182][  T582] loop4: detected capacity change from 0 to 512
[   22.766274][  T566] ext4 filesystem being mounted at /root/syzkaller.kumyKI/8/file1 supports timestamps until 2038 (0x7fffffff)
[   22.771583][  T584] loop3: detected capacity change from 0 to 512
[   22.779638][  T583] loop2: detected capacity change from 0 to 512
[   22.790534][  T585] loop1: detected capacity change from 0 to 512
[pid   559] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   566] <... futex resumed>)        = 0
[pid   586] <... set_robust_list resumed>) = 0
[pid   566] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 593 attached
 <unfinished ...>
[pid   593] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   593] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   586] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   559] <... clone resumed>, parent_tid=[593], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 593
[pid   586] <... mount resumed>)        = 0
[pid   559] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   560] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   560] <... futex resumed>)        = 1
[pid   564] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   560] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   564] <... open resumed>)         = 5
[pid   564] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   560] <... futex resumed>)        = 0
[pid   564] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   560] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   560] <... futex resumed>)        = 0
[pid   564] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   560] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   564] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[   22.810646][  T585] EXT4-fs (loop1): 1 orphan inode deleted
[   22.810937][  T582] EXT4-fs (loop4): 1 orphan inode deleted
[   22.816525][  T585] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.825887][  T584] EXT4-fs (loop3): 1 orphan inode deleted
[   22.834154][  T583] EXT4-fs (loop2): 1 orphan inode deleted
[   22.838985][  T584] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[pid   560] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   560] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   586] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... write resumed>)        = 262144
[pid   559] <... futex resumed>)        = 1
[pid   593] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   586] <... futex resumed>)        = 0
[pid   564] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   585] <... mount resumed>)        = 0
[pid   585] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   585] chdir("./file1")            = 0
[pid   585] ioctl(4, LOOP_CLR_FD)       = 0
[pid   585] close(4)                    = 0
[pid   585] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   578] <... futex resumed>)        = 0
[pid   578] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   578] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   585] <... futex resumed>)        = 1
[pid   585] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   585] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   578] <... futex resumed>)        = 0
[pid   578] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   578] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   578] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   578] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[596], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 596
[pid   578] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   578] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   585] <... futex resumed>)        = 1
[pid   585] fallocate(4, 0, 35143, 7)   = 0
[pid   585] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   585] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   560] exit_group(0)               = ?
[pid   593] <... mount resumed>)        = 0
[pid   586] +++ exited with 0 +++
[pid   564] <... futex resumed>)        = ?
[pid   593] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] +++ exited with 0 +++
[pid   560] +++ exited with 0 +++
[pid   593] <... futex resumed>)        = 1
[pid   559] <... futex resumed>)        = 0
[pid   593] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   559] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   566] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 1
[pid   566] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   559] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   566] <... open resumed>)         = 5
[pid   566] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=560, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   566] <... futex resumed>)        = 1
[pid   559] <... futex resumed>)        = 0
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   566] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] <... restart_syscall resumed>) = 0
[pid   293] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   293] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   293] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   566] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   559] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] unlink("./9/binderfs" <unfinished ...>
[pid   566] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   293] <... unlink resumed>)       = 0
[pid   566] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   559] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   566] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   559] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   566] <... futex resumed>)        = 0
[pid   559] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   566] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190) = 262144
[pid   293] <... umount2 resumed>)      = 0
[pid   566] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   559] <... futex resumed>)        = 0
[pid   566] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   559] exit_group(0 <unfinished ...>
[pid   566] <... futex resumed>)        = ?
[pid   559] <... exit_group resumed>)   = ?
[pid   593] <... futex resumed>)        = 231
[pid   566] +++ exited with 0 +++
[pid   593] +++ exited with 0 +++
[pid   559] +++ exited with 0 +++
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=559, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   298] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   298] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   298] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   298] unlink("./8/binderfs")      = 0
[pid   298] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./9/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   293] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] close(4)                    = 0
[pid   293] rmdir("./9/file1")          = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] close(3)                    = 0
[pid   293] rmdir("./9")                = 0
[pid   293] mkdir("./10", 0777)         = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[   22.843926][  T583] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.859632][  T582] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   22.866753][  T585] ext4 filesystem being mounted at /root/syzkaller.6GNILo/9/file1 supports timestamps until 2038 (0x7fffffff)
[   22.876938][  T584] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/9/file1 supports timestamps until 2038 (0x7fffffff)
[   22.887689][  T583] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/8/file1 supports timestamps until 2038 (0x7fffffff)
[pid   293] close(3 <unfinished ...>
[pid   583] <... mount resumed>)        = 0
[pid   583] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   583] chdir("./file1")            = 0
[pid   583] ioctl(4, LOOP_CLR_FD)       = 0
[pid   583] close(4)                    = 0
[pid   583] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   583] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] <... mount resumed>)        = 0
[pid   584] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   584] chdir("./file1")            = 0
[pid   584] ioctl(4, LOOP_CLR_FD)       = 0
[pid   584] close(4)                    = 0
[pid   584] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   584] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   580] <... futex resumed>)        = 0
[pid   581] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] <... futex resumed>)        = 1
[pid   583] <... futex resumed>)        = 0
[pid   581] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   580] <... futex resumed>)        = 1
[pid   583] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   580] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   583] <... open resumed>)         = 4
[pid   583] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   581] <... futex resumed>)        = 0
[pid   583] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   581] <... futex resumed>)        = 0
[pid   583] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   581] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   581] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   583] <... fallocate resumed>)    = 0
[pid   581] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   583] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] <... mprotect resumed>)     = 0
[pid   583] <... futex resumed>)        = 0
[pid   583] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 597 attached
, parent_tid=[597], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 597
[pid   597] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   581] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   597] <... set_robust_list resumed>) = 0
[pid   581] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   597] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   584] <... futex resumed>)        = 0
[pid   597] <... mount resumed>)        = 0
[pid   597] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   581] <... futex resumed>)        = 0
[pid   584] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   581] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   583] <... futex resumed>)        = 0
[pid   581] <... futex resumed>)        = 1
[pid   583] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   581] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   583] <... open resumed>)         = 5
[pid   583] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   581] <... futex resumed>)        = 0
[pid   583] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   581] <... futex resumed>)        = 0
[pid   583] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   581] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   583] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   583] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   581] <... futex resumed>)        = 0
[pid   583] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   581] <... futex resumed>)        = 0
[pid   583] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   581] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 596 attached
 <unfinished ...>
[pid   584] <... open resumed>)         = 4
[pid   582] <... mount resumed>)        = 0
[pid   596] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   584] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] <... set_robust_list resumed>) = 0
[pid   584] <... futex resumed>)        = 1
[pid   583] <... write resumed>)        = 262144
[pid   580] <... futex resumed>)        = 0
[pid   596] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   584] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   583] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] <... mount resumed>)        = 0
[pid   596] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] <... fallocate resumed>)    = 0
[pid   583] <... futex resumed>)        = 1
[pid   580] <... futex resumed>)        = 0
[pid   596] <... futex resumed>)        = 1
[pid   581] <... futex resumed>)        = 0
[pid   578] <... futex resumed>)        = 0
[pid   584] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   580] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] <... futex resumed>)        = 0
[pid   580] <... futex resumed>)        = 0
[pid   584] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   580] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   580] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[598], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 598
[pid   580] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   580] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   596] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] exit_group(0 <unfinished ...>
[pid   578] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   585] <... futex resumed>)        = 0
[pid   583] <... futex resumed>)        = ?
[pid   597] <... futex resumed>)        = 0
[pid   581] <... exit_group resumed>)   = ?
[pid   583] +++ exited with 0 +++
[pid   582] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   582] chdir("./file1")            = 0
[pid   582] ioctl(4, LOOP_CLR_FD)       = 0
[pid   582] close(4)                    = 0
[pid   582] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   579] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   579] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] <... futex resumed>)        = 1
[pid   582] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   585] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   578] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   585] <... open resumed>)         = 5
[pid   585] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   578] <... futex resumed>)        = 0
[pid   585] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   578] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   578] <... futex resumed>)        = 0
[pid   585] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   578] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   585] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   585] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   578] <... futex resumed>)        = 0
[pid   585] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   578] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   578] <... futex resumed>)        = 0
[pid   585] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   578] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] <... open resumed>)         = 4
[pid   582] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   579] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   579] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   579] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   579] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   579] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[599], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 599
[pid   579] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   579] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] <... futex resumed>)        = 1
[pid   582] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   585] <... write resumed>)        = 262144
[pid   585] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   578] <... futex resumed>)        = 0
[pid   585] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   578] exit_group(0 <unfinished ...>
[pid   596] <... futex resumed>)        = ?
[pid   585] <... futex resumed>)        = ?
[pid   578] <... exit_group resumed>)   = ?
[pid   597] +++ exited with 0 +++
[pid   596] +++ exited with 0 +++
[pid   585] +++ exited with 0 +++
[pid   581] +++ exited with 0 +++
[pid   578] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=581, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=578, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   295] <... restart_syscall resumed>) = 0
[pid   294] <... restart_syscall resumed>) = 0
[pid   294] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 599 attached
./strace-static-x86_64: Process 598 attached
 <unfinished ...>
[pid   298] <... umount2 resumed>)      = 0
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] <... close resumed>)        = 0
[pid   294] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   599] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   598] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   298] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   294] fstat(3,  <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x5555572875d0) = 600
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3,  <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   599] <... set_robust_list resumed>) = 0
[pid   598] <... set_robust_list resumed>) = 0
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./9/binderfs",  <unfinished ...>
[pid   582] <... fallocate resumed>)    = 0
[pid   294] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   582] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] unlink("./9/binderfs"./strace-static-x86_64: Process 600 attached
 <unfinished ...>
[pid   599] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   598] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   582] <... futex resumed>)        = 0
[pid   298] lstat("./8/file1",  <unfinished ...>
[pid   295] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   294] <... unlink resumed>)       = 0
[pid   582] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... openat resumed>)       = 3
[pid   294] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   600] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   599] <... mount resumed>)        = 0
[pid   598] <... mount resumed>)        = 0
[pid   298] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] fstat(3,  <unfinished ...>
[pid   600] <... set_robust_list resumed>) = 0
[pid   599] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   599] <... futex resumed>)        = 1
[pid   579] <... futex resumed>)        = 0
[pid   598] <... futex resumed>)        = 1
[pid   580] <... futex resumed>)        = 0
[pid   298] openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] getdents64(3,  <unfinished ...>
[pid   580] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] <... futex resumed>)        = 0
[pid   582] <... futex resumed>)        = 0
[pid   580] <... futex resumed>)        = 1
[pid   579] <... futex resumed>)        = 1
[pid   584] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   582] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   580] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   584] <... open resumed>)         = 5
[pid   582] <... open resumed>)         = 5
[pid   584] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   582] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   584] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   582] <... futex resumed>)        = 1
[pid   580] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   584] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   582] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   579] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   580] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   298] <... openat resumed>)       = 4
[pid   295] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   584] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   582] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   579] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] fstat(4,  <unfinished ...>
[pid   584] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   584] <... futex resumed>)        = 1
[pid   582] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   295] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   584] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   582] <... futex resumed>)        = 1
[pid   580] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   600] chdir("./10" <unfinished ...>
[pid   599] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   598] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   582] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   579] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] lstat("./8/binderfs",  <unfinished ...>
[pid   600] <... chdir resumed>)        = 0
[pid   584] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   580] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   298] getdents64(4,  <unfinished ...>
[pid   295] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   600] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   584] <... write resumed>)        = 262144
[pid   582] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   579] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] unlink("./8/binderfs" <unfinished ...>
[pid   600] <... prctl resumed>)        = 0
[pid   584] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] <... write resumed>)        = 262144
[pid   298] close(4 <unfinished ...>
[pid   584] <... futex resumed>)        = 1
[pid   582] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   295] <... unlink resumed>)       = 0
[pid   584] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   582] <... futex resumed>)        = 1
[   22.919836][  T582] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/9/file1 supports timestamps until 2038 (0x7fffffff)
[pid   580] exit_group(0 <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   298] <... close resumed>)        = 0
[pid   295] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   598] <... futex resumed>)        = ?
[pid   584] <... futex resumed>)        = ?
[pid   582] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   580] <... exit_group resumed>)   = ?
[pid   579] exit_group(0 <unfinished ...>
[pid   600] setpgid(0, 0 <unfinished ...>
[pid   599] <... futex resumed>)        = ?
[pid   598] +++ exited with 0 +++
[pid   584] +++ exited with 0 +++
[pid   582] <... futex resumed>)        = ?
[pid   580] +++ exited with 0 +++
[pid   579] <... exit_group resumed>)   = ?
[pid   298] rmdir("./8/file1" <unfinished ...>
[pid   600] <... setpgid resumed>)      = 0
[pid   599] +++ exited with 0 +++
[pid   582] +++ exited with 0 +++
[pid   579] +++ exited with 0 +++
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=580, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   298] <... rmdir resumed>)        = 0
[pid   296] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   298] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=579, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   296] <... openat resumed>)       = 3
[pid   298] close(3 <unfinished ...>
[pid   297] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] fstat(3,  <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] rmdir("./8" <unfinished ...>
[pid   297] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   296] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] <... rmdir resumed>)        = 0
[pid   297] <... openat resumed>)       = 3
[pid   296] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   298] mkdir("./9", 0777 <unfinished ...>
[pid   297] fstat(3,  <unfinished ...>
[pid   296] unlink("./9/binderfs")      = 0
[pid   600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   298] <... mkdir resumed>)        = 0
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   600] <... openat resumed>)       = 3
[pid   298] <... openat resumed>)       = 3
[pid   297] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./9/binderfs" <unfinished ...>
[pid   600] write(3, "1000", 4 <unfinished ...>
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   297] <... unlink resumed>)       = 0
[pid   297] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   600] <... write resumed>)        = 4
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   600] close(3 <unfinished ...>
[pid   298] close(3 <unfinished ...>
[pid   600] <... close resumed>)        = 0
[pid   600] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   600] <... symlink resumed>)      = 0
[pid   600] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 601
[pid   600] <... futex resumed>)        = 0
[pid   600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 601 attached
) = 0x7f600e00f000
[pid   296] <... umount2 resumed>)      = 0
[pid   295] <... umount2 resumed>)      = 0
[pid   294] <... umount2 resumed>)      = 0
[pid   296] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   600] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] lstat("./8/file1",  <unfinished ...>
[pid   294] lstat("./9/file1",  <unfinished ...>
[pid   600] <... mprotect resumed>)     = 0
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   600] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   295] umount2("./8/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   600] <... clone resumed>, parent_tid=[602], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 602
[pid   295] openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   294] openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   600] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] lstat("./9/file1",  <unfinished ...>
[pid   295] <... openat resumed>)       = 4
[pid   294] <... openat resumed>)       = 4
[pid   600] <... futex resumed>)        = 0
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] fstat(4,  <unfinished ...>
[pid   294] fstat(4,  <unfinished ...>
[pid   600] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   296] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] getdents64(4,  <unfinished ...>
[pid   294] getdents64(4,  <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] getdents64(4,  <unfinished ...>
[pid   294] getdents64(4,  <unfinished ...>
[pid   296] <... openat resumed>)       = 4
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   296] fstat(4,  <unfinished ...>
[pid   295] close(4 <unfinished ...>
[pid   294] close(4 <unfinished ...>
[pid   601] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... close resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   601] <... set_robust_list resumed>) = 0
[pid   296] getdents64(4,  <unfinished ...>
[pid   295] rmdir("./8/file1" <unfinished ...>
[pid   294] rmdir("./9/file1" <unfinished ...>
[pid   601] chdir("./9" <unfinished ...>
[pid   297] <... umount2 resumed>)      = 0
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] <... rmdir resumed>)        = 0
[pid   294] <... rmdir resumed>)        = 0
[pid   601] <... chdir resumed>)        = 0
[pid   297] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   295] getdents64(3,  <unfinished ...>
[pid   294] getdents64(3,  <unfinished ...>
[pid   601] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   601] <... prctl resumed>)        = 0
[pid   297] lstat("./9/file1",  <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   601] setpgid(0, 0 <unfinished ...>
[pid   297] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... close resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   601] <... setpgid resumed>)      = 0
[pid   297] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   296] rmdir("./9/file1" <unfinished ...>
[pid   295] rmdir("./8" <unfinished ...>
[pid   294] rmdir("./9"./strace-static-x86_64: Process 602 attached
 <unfinished ...>
[pid   601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... rmdir resumed>)        = 0
[pid   295] <... rmdir resumed>)        = 0
[pid   294] <... rmdir resumed>)        = 0
[pid   602] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   601] <... openat resumed>)       = 3
[pid   297] openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   295] mkdir("./9", 0777 <unfinished ...>
[pid   294] mkdir("./10", 0777 <unfinished ...>
[pid   602] <... set_robust_list resumed>) = 0
[pid   601] write(3, "1000", 4 <unfinished ...>
[pid   297] <... openat resumed>)       = 4
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] <... mkdir resumed>)        = 0
[pid   294] <... mkdir resumed>)        = 0
[pid   602] memfd_create("syzkaller", 0 <unfinished ...>
[pid   601] <... write resumed>)        = 4
[pid   297] fstat(4,  <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   602] <... memfd_create resumed>) = 3
[pid   601] close(3 <unfinished ...>
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   296] <... close resumed>)        = 0
[pid   295] <... openat resumed>)       = 3
[pid   294] <... openat resumed>)       = 3
[pid   602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   601] <... close resumed>)        = 0
[pid   297] getdents64(4,  <unfinished ...>
[pid   296] rmdir("./9" <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   602] <... mmap resumed>)         = 0x7f6005c0f000
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   602] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   601] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   296] <... rmdir resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   602] <... write resumed>)        = 262144
[pid   601] <... symlink resumed>)      = 0
[pid   297] getdents64(4,  <unfinished ...>
[pid   296] mkdir("./10", 0777 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   601] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   601] <... futex resumed>)        = 0
[pid   297] close(4 <unfinished ...>
[pid   296] <... mkdir resumed>)        = 0
[pid   601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 603
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 604
[pid   602] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   601] <... mmap resumed>)         = 0x7f600e00f000
[pid   297] rmdir("./9/file1" <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   602] <... munmap resumed>)       = 0
[pid   602] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   601] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   296] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   602] <... openat resumed>)       = 4
[pid   601] <... mprotect resumed>)     = 0
[pid   297] getdents64(3,  <unfinished ...>
[pid   296] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   602] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   296] close(3 <unfinished ...>
[pid   297] close(3./strace-static-x86_64: Process 604 attached
 <unfinished ...>
[pid   601] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   296] <... close resumed>)        = 0
[pid   297] rmdir("./9" <unfinished ...>
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   601] <... clone resumed>, parent_tid=[605], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 605
./strace-static-x86_64: Process 603 attached
[pid   297] <... rmdir resumed>)        = 0
[pid   603] set_robust_list(0x5555572875e0, 24) = 0
[pid   603] chdir("./9" <unfinished ...>
[pid   601] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] mkdir("./10", 0777 <unfinished ...>
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 606
[pid   601] <... futex resumed>)        = 0
[pid   603] <... chdir resumed>)        = 0
[pid   603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   603] setpgid(0, 0)               = 0
[pid   603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   297] <... mkdir resumed>)        = 0
[pid   601] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   603] <... openat resumed>)       = 3
[pid   297] <... openat resumed>)       = 3
[pid   297] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   297] close(3 <unfinished ...>
[pid   603] write(3, "1000", 4 <unfinished ...>
[pid   297] <... close resumed>)        = 0
[pid   603] <... write resumed>)        = 4
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   603] close(3)                    = 0
[pid   603] symlink("/dev/binderfs", "./binderfs") = 0
[pid   603] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] <... clone resumed>, child_tidptr=0x5555572875d0) = 607
[pid   603] <... mmap resumed>)         = 0x7f600e00f000
[pid   603] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   603] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[608], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 608
[pid   603] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   603] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 606 attached
 <unfinished ...>
[pid   606] set_robust_list(0x5555572875e0, 24) = 0
[pid   606] chdir("./10")               = 0
[pid   606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   606] setpgid(0, 0)               = 0
[pid   604] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   604] <... set_robust_list resumed>) = 0
[pid   606] <... openat resumed>)       = 3
[pid   606] write(3, "1000", 4)         = 4
[pid   606] close(3)                    = 0
[pid   606] symlink("/dev/binderfs", "./binderfs") = 0
[pid   604] chdir("./10")               = 0
[pid   606] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   606] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   606] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   604] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   606] <... clone resumed>, parent_tid=[609], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 609
[pid   606] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   602] <... ioctl resumed>)        = 0
[pid   602] close(3)                    = 0
[pid   602] mkdir("./file1", 0777 <unfinished ...>
[pid   604] <... prctl resumed>)        = 0
[pid   604] setpgid(0, 0)               = 0
[pid   602] <... mkdir resumed>)        = 0
./strace-static-x86_64: Process 608 attached
[pid   608] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   608] memfd_create("syzkaller", 0 <unfinished ...>
[pid   602] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   604] <... openat resumed>)       = 3
[pid   604] write(3, "1000", 4)         = 4
[pid   604] close(3 <unfinished ...>
[pid   608] <... memfd_create resumed>) = 3
[pid   604] <... close resumed>)        = 0
[pid   608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   604] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   608] <... mmap resumed>)         = 0x7f6005c0f000
[pid   604] <... symlink resumed>)      = 0
[pid   604] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   604] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 607 attached
./strace-static-x86_64: Process 605 attached
) = 0
[pid   604] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 609 attached
 <unfinished ...>
[pid   609] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   609] memfd_create("syzkaller", 0 <unfinished ...>
[pid   604] <... clone resumed>, parent_tid=[610], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 610
[pid   608] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   607] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   605] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   604] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... memfd_create resumed>) = 3
[pid   604] <... futex resumed>)        = 0
[pid   609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   607] <... set_robust_list resumed>) = 0
[pid   604] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   605] <... set_robust_list resumed>) = 0
./strace-static-x86_64: Process 610 attached
[pid   607] chdir("./10" <unfinished ...>
[pid   605] memfd_create("syzkaller", 0 <unfinished ...>
[pid   610] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   607] <... chdir resumed>)        = 0
[pid   605] <... memfd_create resumed>) = 3
[pid   610] <... set_robust_list resumed>) = 0
[pid   609] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   607] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   607] <... prctl resumed>)        = 0
[pid   605] <... mmap resumed>)         = 0x7f6005c0f000
[pid   608] <... write resumed>)        = 262144
[pid   607] setpgid(0, 0 <unfinished ...>
[pid   608] munmap(0x7f6005c0f000, 262144) = 0
[pid   608] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   608] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   607] <... setpgid resumed>)      = 0
[pid   607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   607] write(3, "1000", 4 <unfinished ...>
[pid   610] memfd_create("syzkaller", 0 <unfinished ...>
[pid   607] <... write resumed>)        = 4
[pid   605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   607] close(3 <unfinished ...>
[pid   609] <... write resumed>)        = 262144
[pid   607] <... close resumed>)        = 0
[pid   605] <... write resumed>)        = 262144
[pid   610] <... memfd_create resumed>) = 3
[pid   607] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   609] munmap(0x7f6005c0f000, 262144) = 0
[pid   609] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   609] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   607] <... symlink resumed>)      = 0
[pid   605] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   607] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   610] <... mmap resumed>)         = 0x7f6005c0f000
[pid   609] <... ioctl resumed>)        = 0
[pid   608] <... ioctl resumed>)        = 0
[pid   607] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   605] <... munmap resumed>)       = 0
[   23.038069][  T602] loop0: detected capacity change from 0 to 512
[   23.065226][  T608] loop2: detected capacity change from 0 to 512
[   23.073607][  T609] loop3: detected capacity change from 0 to 512
[   23.081335][  T602] EXT4-fs (loop0): 1 orphan inode deleted
[pid   610] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   609] close(3 <unfinished ...>
[pid   608] close(3 <unfinished ...>
[pid   607] <... mprotect resumed>)     = 0
[pid   605] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   610] <... write resumed>)        = 262144
[pid   609] <... close resumed>)        = 0
[pid   608] <... close resumed>)        = 0
[pid   607] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   605] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 613 attached
 <unfinished ...>
[pid   610] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   609] mkdir("./file1", 0777 <unfinished ...>
[pid   608] mkdir("./file1", 0777 <unfinished ...>
[pid   602] <... mount resumed>)        = 0
[pid   610] <... munmap resumed>)       = 0
[pid   609] <... mkdir resumed>)        = 0
[pid   608] <... mkdir resumed>)        = 0
[pid   607] <... clone resumed>, parent_tid=[613], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 613
[pid   602] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   610] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   609] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   608] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   607] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... openat resumed>)       = 3
[pid   610] <... openat resumed>)       = 4
[pid   607] <... futex resumed>)        = 0
[pid   602] chdir("./file1" <unfinished ...>
[pid   605] <... ioctl resumed>)        = 0
[pid   610] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   607] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   605] close(3 <unfinished ...>
[pid   602] <... chdir resumed>)        = 0
[pid   605] <... close resumed>)        = 0
[pid   602] ioctl(4, LOOP_CLR_FD)       = 0
[pid   605] mkdir("./file1", 0777 <unfinished ...>
[pid   602] close(4)                    = 0
[pid   602] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   600] <... futex resumed>)        = 0
[pid   602] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   600] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... open resumed>)         = 4
[pid   600] <... futex resumed>)        = 0
[pid   602] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... futex resumed>)        = 0
[pid   600] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   602] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   600] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... fallocate resumed>)    = 0
[pid   600] <... futex resumed>)        = 0
[pid   602] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = 0
[pid   600] <... futex resumed>)        = 0
[pid   602] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   600] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   600] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[616], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 616
[pid   600] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   600] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   613] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   613] memfd_create("syzkaller", 0) = 3
[pid   613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   610] <... ioctl resumed>)        = 0
[   23.087313][  T602] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   23.098693][  T602] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/10/file1 supports timestamps until 2038 (0x7fffffff)
[   23.101911][  T605] loop5: detected capacity change from 0 to 512
[   23.117435][  T610] loop1: detected capacity change from 0 to 512
./strace-static-x86_64: Process 616 attached
[pid   616] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   616] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid   616] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... futex resumed>)        = 0
[pid   600] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = 0
[pid   600] <... futex resumed>)        = 1
[pid   602] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   600] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... open resumed>)         = 5
[pid   602] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   600] <... futex resumed>)        = 0
[pid   602] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   600] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   600] <... futex resumed>)        = 0
[pid   602] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... futex resumed>)        = 0
[pid   600] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   602] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   600] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   600] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   616] <... futex resumed>)        = 1
[pid   616] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   605] <... mkdir resumed>)        = 0
[pid   605] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   610] close(3)                    = 0
[pid   610] mkdir("./file1", 0777)      = 0
[pid   610] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   613] munmap(0x7f6005c0f000, 262144) = 0
[pid   613] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   613] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   602] <... write resumed>)        = 262144
[pid   602] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   600] <... futex resumed>)        = 0
[pid   602] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   600] exit_group(0 <unfinished ...>
[pid   602] <... futex resumed>)        = ?
[pid   600] <... exit_group resumed>)   = ?
[pid   602] +++ exited with 0 +++
[pid   613] <... ioctl resumed>)        = 0
[pid   613] close(3)                    = 0
[pid   613] mkdir("./file1", 0777 <unfinished ...>
[pid   616] <... futex resumed>)        = ?
[pid   613] <... mkdir resumed>)        = 0
[pid   613] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   616] +++ exited with 0 +++
[pid   600] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=600, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   293] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   293] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   609] <... mount resumed>)        = 0
[pid   609] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   609] chdir("./file1")            = 0
[pid   609] ioctl(4, LOOP_CLR_FD)       = 0
[pid   609] close(4)                    = 0
[pid   609] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] <... futex resumed>)        = 0
[pid   606] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   609] <... futex resumed>)        = 1
[pid   609] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   609] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] <... futex resumed>)        = 0
[pid   606] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   606] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   606] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[621], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 621
[pid   606] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   609] <... futex resumed>)        = 1
[pid   609] fallocate(4, 0, 35143, 7)   = 0
[pid   609] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   609] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   293] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./10/binderfs")     = 0
[   23.133173][  T609] EXT4-fs (loop3): 1 orphan inode deleted
[   23.139631][  T613] loop4: detected capacity change from 0 to 512
[   23.148041][  T609] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   23.159826][  T609] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/10/file1 supports timestamps until 2038 (0x7fffffff)
[   23.162427][  T608] EXT4-fs (loop2): 1 orphan inode deleted
[pid   293] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 621 attached
 <unfinished ...>
[pid   608] <... mount resumed>)        = 0
[pid   621] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[   23.178388][  T608] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   23.179249][  T610] EXT4-fs (loop1): 1 orphan inode deleted
[   23.192428][  T608] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/9/file1 supports timestamps until 2038 (0x7fffffff)
[   23.201126][  T605] EXT4-fs (loop5): 1 orphan inode deleted
[   23.206475][  T610] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   23.223070][  T610] ext4 filesystem being mounted at /root/syzkaller.6GNILo/10/file1 supports timestamps until 2038 (0x7fffffff)
[pid   608] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   621] <... set_robust_list resumed>) = 0
[pid   610] <... mount resumed>)        = 0
[pid   608] <... openat resumed>)       = 3
[pid   606] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   621] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   610] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   608] chdir("./file1" <unfinished ...>
[pid   606] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   621] <... mount resumed>)        = 0
[pid   610] <... openat resumed>)       = 3
[pid   609] <... futex resumed>)        = 0
[pid   608] <... chdir resumed>)        = 0
[pid   606] <... futex resumed>)        = 1
[pid   621] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] chdir("./file1" <unfinished ...>
[pid   609] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   608] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   606] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   621] <... futex resumed>)        = 0
[pid   610] <... chdir resumed>)        = 0
[pid   609] <... open resumed>)         = 5
[pid   608] <... ioctl resumed>)        = 0
[pid   621] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   610] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   609] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] close(4 <unfinished ...>
[pid   610] <... ioctl resumed>)        = 0
[pid   609] <... futex resumed>)        = 1
[pid   608] <... close resumed>)        = 0
[pid   606] <... futex resumed>)        = 0
[pid   610] close(4 <unfinished ...>
[pid   609] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   608] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] <... close resumed>)        = 0
[pid   609] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   608] <... futex resumed>)        = 1
[pid   606] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 0
[pid   610] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   606] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   603] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] <... futex resumed>)        = 1
[pid   609] <... futex resumed>)        = 0
[pid   606] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   604] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 0
[pid   610] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   609] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   606] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   606] <... futex resumed>)        = 0
[pid   604] <... futex resumed>)        = 0
[pid   606] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   610] <... open resumed>)         = 4
[pid   608] <... open resumed>)         = 4
[pid   610] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   608] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   610] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   608] <... futex resumed>)        = 1
[pid   604] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   613] <... mount resumed>)        = 0
[pid   610] <... fallocate resumed>)    = 0
[pid   608] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   603] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   610] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] <... fallocate resumed>)    = 0
[pid   604] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   613] chdir("./file1" <unfinished ...>
[pid   608] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 0
[pid   613] <... chdir resumed>)        = 0
[pid   608] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   603] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   613] ioctl(4, LOOP_CLR_FD)       = 0
[pid   610] <... futex resumed>)        = 0
[pid   609] <... write resumed>)        = 262144
[pid   608] <... mount resumed>)        = 0
[pid   604] <... futex resumed>)        = 0
[pid   613] close(4 <unfinished ...>
[pid   610] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   609] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   609] <... futex resumed>)        = 1
[pid   608] <... futex resumed>)        = 1
[pid   603] <... futex resumed>)        = 0
[pid   606] <... futex resumed>)        = 0
[pid   604] <... mmap resumed>)         = 0x7f6005c2e000
[pid   606] exit_group(0 <unfinished ...>
[pid   604] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   621] <... futex resumed>)        = ?
[pid   606] <... exit_group resumed>)   = ?
[pid   604] <... mprotect resumed>)     = 0
[pid   621] +++ exited with 0 +++
[pid   604] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[627], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 627
[pid   604] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   604] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   608] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   603] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] +++ exited with 0 +++
[pid   606] +++ exited with 0 +++
[pid   603] <... futex resumed>)        = 0
[pid   603] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=606, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   608] <... open resumed>)         = 5
[pid   296] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   608] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   608] <... futex resumed>)        = 1
[pid   603] <... futex resumed>)        = 0
[pid   296] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   608] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   603] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... openat resumed>)       = 3
[pid   608] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   603] <... futex resumed>)        = 0
[pid   296] fstat(3,  <unfinished ...>
[pid   608] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   608] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   296] getdents64(3,  <unfinished ...>
[pid   608] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   603] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   603] <... futex resumed>)        = 0
[pid   296] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   603] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   296] unlink("./10/binderfs")     = 0
[pid   296] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 627 attached
 <unfinished ...>
[pid   627] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   627] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL) = 0
[pid   627] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   627] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   604] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] <... mount resumed>)        = 0
[pid   605] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   610] <... futex resumed>)        = 0
[pid   604] <... futex resumed>)        = 1
[pid   610] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   604] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   610] <... open resumed>)         = 5
[pid   610] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] chdir("./file1" <unfinished ...>
[pid   610] <... futex resumed>)        = 1
[pid   604] <... futex resumed>)        = 0
[pid   604] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   605] <... chdir resumed>)        = 0
[pid   605] ioctl(4, LOOP_CLR_FD)       = 0
[pid   605] close(4)                    = 0
[pid   610] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   604] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   610] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] <... write resumed>)        = 262144
[pid   610] <... futex resumed>)        = 1
[pid   604] <... futex resumed>)        = 0
[pid   604] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   608] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   605] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   601] <... futex resumed>)        = 0
[pid   601] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   601] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   605] <... futex resumed>)        = 1
[pid   605] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   605] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] <... futex resumed>)        = 0
[pid   601] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   601] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] <... write resumed>)        = 262144
[pid   601] <... futex resumed>)        = 0
[pid   601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   601] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   610] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] <... futex resumed>)        = 1
[pid   603] <... futex resumed>)        = 0
[pid   601] <... mprotect resumed>)     = 0
[pid   603] exit_group(0 <unfinished ...>
[pid   610] <... futex resumed>)        = 1
[pid   601] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   603] <... exit_group resumed>)   = ?
[pid   604] exit_group(0)               = ?
[pid   627] <... futex resumed>)        = 231
[pid   601] <... clone resumed>, parent_tid=[628], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 628
[pid   627] +++ exited with 0 +++
[pid   601] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   601] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   605] <... futex resumed>)        = 1
[pid   605] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   610] +++ exited with 0 +++
[pid   605] <... fallocate resumed>)    = 0
[pid   604] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=604, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   605] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   605] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   294] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./10/binderfs" <unfinished ...>
[pid   608] +++ exited with 0 +++
[pid   603] +++ exited with 0 +++
[pid   294] <... unlink resumed>)       = 0
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=603, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   294] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   295] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   295] unlink("./9/binderfs")      = 0
[pid   295] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   613] <... close resumed>)        = 0
./strace-static-x86_64: Process 628 attached
[pid   293] <... umount2 resumed>)      = 0
[pid   293] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   613] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   613] <... futex resumed>)        = 1
[pid   607] <... futex resumed>)        = 0
[pid   293] lstat("./10/file1",  <unfinished ...>
[pid   607] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   613] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   607] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   613] <... open resumed>)         = 4
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   613] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   613] <... futex resumed>)        = 1
[pid   607] <... futex resumed>)        = 0
[pid   607] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   293] <... openat resumed>)       = 4
[pid   607] <... futex resumed>)        = 0
[pid   293] fstat(4,  <unfinished ...>
[pid   613] <... fallocate resumed>)    = 0
[pid   607] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   607] <... futex resumed>)        = 0
[pid   613] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] getdents64(4,  <unfinished ...>
[pid   607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   613] <... futex resumed>)        = 0
[pid   607] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   613] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   607] <... mprotect resumed>)     = 0
[pid   293] getdents64(4,  <unfinished ...>
[pid   607] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   607] <... clone resumed>, parent_tid=[630], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 630
[pid   293] close(4 <unfinished ...>
[pid   607] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] <... close resumed>)        = 0
[pid   607] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] rmdir("./10/file1")         = 0
[pid   293] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[   23.224884][  T613] EXT4-fs (loop4): 1 orphan inode deleted
[   23.235036][  T605] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[   23.241253][  T613] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/10/file1 supports timestamps until 2038 (0x7fffffff)
[   23.258494][  T605] ext4 filesystem being mounted at /root/syzkaller.kumyKI/9/file1 supports timestamps until 2038 (0x7fffffff)
[pid   293] close(3)                    = 0
[pid   293] rmdir("./10" <unfinished ...>
[pid   628] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   293] <... rmdir resumed>)        = 0
[pid   628] <... set_robust_list resumed>) = 0
[pid   293] mkdir("./11", 0777)         = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   628] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 631
./strace-static-x86_64: Process 631 attached
[pid   631] set_robust_list(0x5555572875e0, 24) = 0
[pid   631] chdir("./11")               = 0
[pid   631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   631] setpgid(0, 0)               = 0
[pid   631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   631] write(3, "1000", 4)         = 4
[pid   631] close(3)                    = 0
[pid   631] symlink("/dev/binderfs", "./binderfs") = 0
[pid   631] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   631] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   631] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[632], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 632
[pid   631] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   631] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 632 attached
 <unfinished ...>
[pid   632] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   632] memfd_create("syzkaller", 0) = 3
[pid   632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   628] <... mount resumed>)        = 0
[pid   632] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   628] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   632] <... write resumed>)        = 262144
[pid   632] munmap(0x7f6005c0f000, 262144) = 0
[pid   632] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   632] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   628] <... futex resumed>)        = 1
[pid   601] <... futex resumed>)        = 0
[pid   601] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   605] <... futex resumed>)        = 0
[pid   601] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   605] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   605] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   601] <... futex resumed>)        = 0
[pid   605] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   601] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   601] <... futex resumed>)        = 0
[pid   605] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   601] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   605] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   605] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   601] <... futex resumed>)        = 0
[pid   632] <... ioctl resumed>)        = 0
[pid   632] close(3)                    = 0
[pid   632] mkdir("./file1", 0777 <unfinished ...>
[pid   605] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   601] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   632] <... mkdir resumed>)        = 0
[pid   632] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   601] <... futex resumed>)        = 0
[pid   601] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   605] <... write resumed>)        = 262144
[pid   605] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   601] <... futex resumed>)        = 0
[pid   605] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   601] exit_group(0)               = ?
[pid   605] <... futex resumed>)        = ?
[pid   605] +++ exited with 0 +++
[pid   294] <... umount2 resumed>)      = 0
[pid   294] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./10/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./10/file1")         = 0
[pid   294] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] close(3)                    = 0
[pid   628] +++ exited with 0 +++
[pid   601] +++ exited with 0 +++
[pid   294] rmdir("./10" <unfinished ...>
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=601, si_uid=0, si_status=0, si_utime=0, si_stime=7} ---
[pid   294] <... rmdir resumed>)        = 0
[pid   298] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] mkdir("./11", 0777 <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   298] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] <... mkdir resumed>)        = 0
[pid   298] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   296] <... umount2 resumed>)      = 0
[pid   294] <... openat resumed>)       = 3
[pid   298] lstat("./9/binderfs",  <unfinished ...>
[pid   296] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   298] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   298] unlink("./9/binderfs")      = 0
[pid   298] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   294] close(3 <unfinished ...>
[pid   296] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] <... close resumed>)        = 0
[pid   296] lstat("./10/file1",  <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   296] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 634
[pid   296] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
./strace-static-x86_64: Process 634 attached
[pid   296] openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   634] set_robust_list(0x5555572875e0, 24) = 0
[pid   634] chdir("./11")               = 0
[pid   634] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   296] <... openat resumed>)       = 4
./strace-static-x86_64: Process 630 attached
[pid   634] <... prctl resumed>)        = 0
[pid   296] fstat(4,  <unfinished ...>
[pid   630] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   634] setpgid(0, 0)               = 0
[pid   634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   634] write(3, "1000", 4)         = 4
[pid   634] close(3)                    = 0
[pid   634] symlink("/dev/binderfs", "./binderfs") = 0
[pid   634] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   634] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   634] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[636], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 636
[pid   634] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   634] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 636 attached
 <unfinished ...>
[pid   636] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   636] memfd_create("syzkaller", 0) = 3
[pid   636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   636] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   636] munmap(0x7f6005c0f000, 262144) = 0
[pid   636] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   636] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   632] <... mount resumed>)        = 0
[pid   630] <... set_robust_list resumed>) = 0
[pid   607] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   296] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   630] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   607] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   630] <... mount resumed>)        = 0
[pid   613] <... futex resumed>)        = 0
[pid   607] <... futex resumed>)        = 1
[pid   296] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   630] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   607] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] getdents64(4,  <unfinished ...>
[pid   630] <... futex resumed>)        = 0
[pid   613] <... open resumed>)         = 5
[pid   296] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   630] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   613] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] close(4 <unfinished ...>
[pid   613] <... futex resumed>)        = 1
[pid   607] <... futex resumed>)        = 0
[pid   296] <... close resumed>)        = 0
[pid   613] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   607] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] rmdir("./10/file1" <unfinished ...>
[pid   613] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   607] <... futex resumed>)        = 0
[pid   296] <... rmdir resumed>)        = 0
[pid   613] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   607] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] getdents64(3,  <unfinished ...>
[pid   613] <... futex resumed>)        = 0
[pid   607] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   296] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   613] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   607] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] close(3 <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   296] <... close resumed>)        = 0
[pid   607] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] rmdir("./10")               = 0
[pid   296] mkdir("./11", 0777)         = 0
[pid   296] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   296] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   296] close(3)                    = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 637 attached
 <unfinished ...>
[pid   636] <... ioctl resumed>)        = 0
[pid   296] <... clone resumed>, child_tidptr=0x5555572875d0) = 637
[pid   636] close(3 <unfinished ...>
[pid   637] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   636] <... close resumed>)        = 0
[pid   613] <... write resumed>)        = 262144
[pid   613] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   607] <... futex resumed>)        = 0
[pid   613] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   607] exit_group(0 <unfinished ...>
[pid   630] <... futex resumed>)        = ?
[pid   613] <... futex resumed>)        = ?
[pid   607] <... exit_group resumed>)   = ?
[pid   637] <... set_robust_list resumed>) = 0
[pid   636] mkdir("./file1", 0777 <unfinished ...>
[pid   630] +++ exited with 0 +++
[pid   613] +++ exited with 0 +++
[pid   607] +++ exited with 0 +++
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=607, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   297] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   632] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   632] chdir("./file1")            = 0
[pid   632] ioctl(4, LOOP_CLR_FD)       = 0
[pid   632] close(4)                    = 0
[pid   632] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   632] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   631] <... futex resumed>)        = 0
[pid   297] <... restart_syscall resumed>) = 0
[pid   636] <... mkdir resumed>)        = 0
[pid   631] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   631] <... futex resumed>)        = 1
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./10/binderfs" <unfinished ...>
[pid   632] <... futex resumed>)        = 0
[pid   631] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... unlink resumed>)       = 0
[pid   637] chdir("./11" <unfinished ...>
[pid   297] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   637] <... chdir resumed>)        = 0
[pid   632] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   636] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   637] setpgid(0, 0 <unfinished ...>
[pid   632] <... open resumed>)         = 4
[pid   632] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   631] <... futex resumed>)        = 0
[pid   637] <... setpgid resumed>)      = 0
[pid   631] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   631] <... futex resumed>)        = 0
[pid   637] <... openat resumed>)       = 3
[pid   631] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   637] write(3, "1000", 4 <unfinished ...>
[pid   631] <... futex resumed>)        = 0
[pid   631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   631] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   637] <... write resumed>)        = 4
[pid   631] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   637] close(3)                    = 0
[pid   637] symlink("/dev/binderfs", "./binderfs") = 0
[pid   632] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   631] <... clone resumed>, parent_tid=[638], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 638
[pid   637] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   631] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   637] <... mmap resumed>)         = 0x7f600e00f000
[pid   631] <... futex resumed>)        = 0
[pid   637] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   631] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   637] <... mprotect resumed>)     = 0
[pid   637] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[639], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 639
[pid   637] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   637] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 638 attached
 <unfinished ...>
[pid   638] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   638] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL./strace-static-x86_64: Process 639 attached
 <unfinished ...>
[pid   639] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   639] memfd_create("syzkaller", 0) = 3
[pid   639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   638] <... mount resumed>)        = 0
[pid   638] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   631] <... futex resumed>)        = 0
[pid   638] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   631] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   631] <... futex resumed>)        = 0
[pid   638] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   631] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   638] <... open resumed>)         = 5
[pid   638] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   631] <... futex resumed>)        = 0
[pid   638] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   631] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   631] <... futex resumed>)        = 0
[pid   638] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   631] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   638] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   638] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   631] <... futex resumed>)        = 0
[pid   638] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   631] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   631] <... futex resumed>)        = 0
[pid   638] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   631] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   638] <... write resumed>)        = 262144
[pid   632] <... fallocate resumed>)    = 0
[pid   298] <... umount2 resumed>)      = 0
[pid   295] <... umount2 resumed>)      = 0
[pid   638] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   631] <... futex resumed>)        = 0
[pid   638] <... futex resumed>)        = 1
[pid   638] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   298] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] lstat("./9/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] lstat("./9/file1",  <unfinished ...>
[pid   298] openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] <... openat resumed>)       = 4
[pid   295] umount2("./9/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   298] fstat(4,  <unfinished ...>
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   298] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   295] <... openat resumed>)       = 4
[pid   298] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   295] fstat(4,  <unfinished ...>
[pid   298] getdents64(4,  <unfinished ...>
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   298] close(4 <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   298] <... close resumed>)        = 0
[pid   295] getdents64(4,  <unfinished ...>
[pid   298] rmdir("./9/file1" <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[   23.329700][  T632] loop0: detected capacity change from 0 to 512
[   23.354370][  T632] EXT4-fs (loop0): 1 orphan inode deleted
[   23.360009][  T632] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/11/file1 supports timestamps until 2038 (0x7fffffff)
[   23.370451][  T636] loop1: detected capacity change from 0 to 512
[pid   632] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... rmdir resumed>)        = 0
[pid   295] close(4 <unfinished ...>
[pid   632] <... futex resumed>)        = 0
[pid   631] exit_group(0 <unfinished ...>
[pid   298] getdents64(3,  <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   631] <... exit_group resumed>)   = ?
[pid   298] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   295] rmdir("./9/file1" <unfinished ...>
[pid   298] close(3 <unfinished ...>
[pid   295] <... rmdir resumed>)        = 0
[pid   298] <... close resumed>)        = 0
[pid   295] getdents64(3,  <unfinished ...>
[pid   298] rmdir("./9" <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   298] <... rmdir resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   298] mkdir("./10", 0777 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   298] <... mkdir resumed>)        = 0
[pid   297] <... umount2 resumed>)      = 0
[pid   295] rmdir("./9" <unfinished ...>
[pid   638] <... futex resumed>)        = ?
[pid   297] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   638] +++ exited with 0 +++
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   295] <... rmdir resumed>)        = 0
[pid   298] <... openat resumed>)       = 3
[pid   295] mkdir("./10", 0777 <unfinished ...>
[pid   298] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   295] <... mkdir resumed>)        = 0
[pid   298] close(3 <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   298] <... close resumed>)        = 0
[pid   295] <... openat resumed>)       = 3
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   298] <... clone resumed>, child_tidptr=0x5555572875d0) = 642
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 643
[pid   297] lstat("./10/file1",  <unfinished ...>
[pid   639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   639] munmap(0x7f6005c0f000, 262144) = 0
[pid   639] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   639] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   632] +++ exited with 0 +++
[pid   631] +++ exited with 0 +++
[pid   297] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=631, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   639] <... ioctl resumed>)        = 0
[pid   639] close(3)                    = 0
[pid   639] mkdir("./file1", 0777 <unfinished ...>
[pid   297] openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   293] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   639] <... mkdir resumed>)        = 0
[pid   297] fstat(4,  <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   639] mount("/dev/loop3", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   297] getdents64(4,  <unfinished ...>
[pid   293] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   293] <... openat resumed>)       = 3
[pid   293] fstat(3,  <unfinished ...>
[pid   297] getdents64(4,  <unfinished ...>
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   297] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   293] getdents64(3,  <unfinished ...>
[pid   297] close(4./strace-static-x86_64: Process 642 attached
)                    = 0
[pid   293] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   642] set_robust_list(0x5555572875e0, 24) = 0
[pid   642] chdir("./10")               = 0
[pid   642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   642] setpgid(0, 0)               = 0
[pid   642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   297] rmdir("./10/file1" <unfinished ...>
[pid   293] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   642] write(3, "1000", 4)         = 4
[pid   642] close(3)                    = 0
[pid   642] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] getdents64(3,  <unfinished ...>
[pid   293] lstat("./11/binderfs",  <unfinished ...>
[pid   297] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   293] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   293] unlink("./11/binderfs" <unfinished ...>
[pid   297] close(3 <unfinished ...>
[pid   293] <... unlink resumed>)       = 0
[pid   297] <... close resumed>)        = 0
[pid   293] umount2("./11/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] rmdir("./10" <unfinished ...>
[pid   642] <... symlink resumed>)      = 0
[pid   642] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   642] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] <... rmdir resumed>)        = 0
[pid   297] mkdir("./11", 0777 <unfinished ...>
[pid   642] <... mprotect resumed>)     = 0
[pid   642] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[644], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 644
[pid   642] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] <... mkdir resumed>)        = 0
[pid   642] <... futex resumed>)        = 0
[pid   297] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   642] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   297] <... openat resumed>)       = 3
[pid   297] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   297] close(3)                    = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 645
./strace-static-x86_64: Process 643 attached
[pid   636] <... mount resumed>)        = 0
[pid   643] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   636] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   643] <... set_robust_list resumed>) = 0
[pid   643] chdir("./10")               = 0
[pid   643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   643] setpgid(0, 0)               = 0
[pid   643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   643] write(3, "1000", 4)         = 4
[pid   643] close(3)                    = 0
[pid   643] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   636] <... openat resumed>)       = 3
[pid   643] <... symlink resumed>)      = 0
[pid   636] chdir("./file1" <unfinished ...>
[pid   643] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   636] <... chdir resumed>)        = 0
[pid   643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   636] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   643] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 644 attached
) = 0
[pid   636] <... ioctl resumed>)        = 0
[pid   644] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   643] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   636] close(4 <unfinished ...>
[pid   644] <... set_robust_list resumed>) = 0
[pid   636] <... close resumed>)        = 0
[pid   643] <... clone resumed>, parent_tid=[647], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 647
[pid   643] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] <... futex resumed>)        = 0
[pid   643] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   636] <... futex resumed>)        = 1
[pid   634] <... futex resumed>)        = 0
[pid   634] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   634] <... futex resumed>)        = 0
[pid   644] memfd_create("syzkaller", 0 <unfinished ...>
[pid   634] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 647 attached
 <unfinished ...>
[pid   636] <... open resumed>)         = 4
[pid   644] <... memfd_create resumed>) = 3
[pid   636] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   647] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   636] <... futex resumed>)        = 1
[pid   634] <... futex resumed>)        = 0
[pid   644] <... mmap resumed>)         = 0x7f6005c0f000
[pid   636] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   634] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   634] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   636] <... fallocate resumed>)    = 0
[pid   634] <... mmap resumed>)         = 0x7f6005c2e000
[pid   636] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   634] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   636] <... futex resumed>)        = 0
[pid   634] <... mprotect resumed>)     = 0
[pid   636] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   634] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[648], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 648
[pid   634] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   634] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   647] <... set_robust_list resumed>) = 0
[pid   647] memfd_create("syzkaller", 0) = 3
[pid   644] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 645 attached
) = 0x7f6005c0f000
[pid   293] <... umount2 resumed>)      = 0
[pid   293] umount2("./11/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   645] set_robust_list(0x5555572875e0, 24) = 0
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] lstat("./11/file1",  <unfinished ...>
[pid   645] chdir("./11" <unfinished ...>
[pid   293] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   645] <... chdir resumed>)        = 0
[pid   293] umount2("./11/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   645] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   645] <... prctl resumed>)        = 0
[pid   293] openat(AT_FDCWD, "./11/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   645] setpgid(0, 0 <unfinished ...>
[pid   293] <... openat resumed>)       = 4
[pid   645] <... setpgid resumed>)      = 0
[pid   293] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] getdents64(4,  <unfinished ...>
[pid   645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   644] <... write resumed>)        = 262144
[pid   293] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   647] munmap(0x7f6005c0f000, 262144) = 0
[pid   647] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[   23.403186][  T636] EXT4-fs (loop1): 1 orphan inode deleted
[   23.409157][  T636] ext4 filesystem being mounted at /root/syzkaller.6GNILo/11/file1 supports timestamps until 2038 (0x7fffffff)
[   23.414656][  T639] loop3: detected capacity change from 0 to 512
[pid   647] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 648 attached
 <unfinished ...>
[pid   645] <... openat resumed>)       = 3
[pid   644] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   293] getdents64(4,  <unfinished ...>
[pid   647] <... ioctl resumed>)        = 0
[pid   647] close(3)                    = 0
[pid   647] mkdir("./file1", 0777 <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   647] <... mkdir resumed>)        = 0
[pid   647] mount("/dev/loop2", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   293] close(4 <unfinished ...>
[pid   645] write(3, "1000", 4 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   645] <... write resumed>)        = 4
[pid   644] <... munmap resumed>)       = 0
[pid   293] rmdir("./11/file1" <unfinished ...>
[pid   648] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   645] close(3 <unfinished ...>
[pid   644] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   293] <... rmdir resumed>)        = 0
[pid   645] <... close resumed>)        = 0
[pid   293] getdents64(3,  <unfinished ...>
[pid   648] <... set_robust_list resumed>) = 0
[pid   645] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   644] <... openat resumed>)       = 4
[pid   293] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   648] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   645] <... symlink resumed>)      = 0
[pid   644] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   648] <... mount resumed>)        = 0
[pid   293] <... close resumed>)        = 0
[pid   645] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] rmdir("./11")               = 0
[pid   645] <... futex resumed>)        = 0
[pid   645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   293] mkdir("./12", 0777)         = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   645] <... mmap resumed>)         = 0x7f600e00f000
[pid   293] <... openat resumed>)       = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 650
./strace-static-x86_64: Process 650 attached
[pid   650] set_robust_list(0x5555572875e0, 24) = 0
[pid   650] chdir("./12" <unfinished ...>
[pid   645] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   648] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   645] <... mprotect resumed>)     = 0
[pid   648] <... futex resumed>)        = 1
[pid   645] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   634] <... futex resumed>)        = 0
[pid   648] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   634] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   634] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   636] <... futex resumed>)        = 0
[pid   645] <... clone resumed>, parent_tid=[651], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 651
[pid   636] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   645] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   636] <... open resumed>)         = 5
[pid   645] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   636] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   634] <... futex resumed>)        = 0
[pid   636] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   634] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   634] <... futex resumed>)        = 0
[pid   636] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   634] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   636] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   636] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   634] <... futex resumed>)        = 0
[pid   636] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   634] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   634] <... futex resumed>)        = 0
[pid   636] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   634] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   650] <... chdir resumed>)        = 0
[pid   650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   650] setpgid(0, 0)               = 0
[pid   650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   650] write(3, "1000", 4)         = 4
[pid   650] close(3)                    = 0
[pid   650] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   636] <... write resumed>)        = 262144
[pid   636] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   634] <... futex resumed>)        = 0
[pid   636] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   634] exit_group(0 <unfinished ...>
[pid   648] <... futex resumed>)        = ?
[pid   636] <... futex resumed>)        = ?
[pid   634] <... exit_group resumed>)   = ?
[pid   648] +++ exited with 0 +++
[pid   650] <... symlink resumed>)      = 0
[pid   650] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] +++ exited with 0 +++
[pid   634] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=634, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   650] <... futex resumed>)        = 0
[pid   650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   294] <... restart_syscall resumed>) = 0
[pid   294] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   294] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   294] unlink("./11/binderfs")     = 0
[pid   294] umount2("./11/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   650] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   650] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[652], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 652
[pid   650] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   650] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   644] <... ioctl resumed>)        = 0
[pid   644] close(3)                    = 0
[pid   644] mkdir("./file1", 0777)      = 0
[pid   644] mount("/dev/loop5", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue"./strace-static-x86_64: Process 651 attached
 <unfinished ...>
[pid   651] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   651] memfd_create("syzkaller", 0) = 3
[pid   651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[   23.457524][  T647] loop2: detected capacity change from 0 to 512
[   23.468636][  T644] loop5: detected capacity change from 0 to 512
[   23.496778][  T639] EXT4-fs (loop3): 1 orphan inode deleted
[pid   651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144./strace-static-x86_64: Process 652 attached
) = 262144
[pid   639] <... mount resumed>)        = 0
[pid   652] set_robust_list(0x7f600e02f9e0, 24 <unfinished ...>
[pid   651] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   639] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   652] <... set_robust_list resumed>) = 0
[pid   651] <... munmap resumed>)       = 0
[pid   639] <... openat resumed>)       = 3
[pid   652] memfd_create("syzkaller", 0 <unfinished ...>
[pid   651] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   639] chdir("./file1" <unfinished ...>
[pid   652] <... memfd_create resumed>) = 3
[pid   639] <... chdir resumed>)        = 0
[pid   652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[pid   639] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   652] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   651] <... openat resumed>)       = 4
[pid   652] <... write resumed>)        = 262144
[pid   651] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   639] <... ioctl resumed>)        = 0
[pid   652] munmap(0x7f6005c0f000, 262144 <unfinished ...>
[pid   639] close(4 <unfinished ...>
[pid   652] <... munmap resumed>)       = 0
[pid   639] <... close resumed>)        = 0
[pid   652] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   639] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... openat resumed>)       = 4
[pid   652] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   639] <... futex resumed>)        = 1
[pid   637] <... futex resumed>)        = 0
[pid   637] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... umount2 resumed>)      = 0
[pid   637] <... futex resumed>)        = 0
[   23.507169][  T639] ext4 filesystem being mounted at /root/syzkaller.2mSqAy/11/file1 supports timestamps until 2038 (0x7fffffff)
[   23.530288][  T651] loop4: detected capacity change from 0 to 512
[   23.530685][  T652] loop0: detected capacity change from 0 to 512
[   23.543414][  T647] EXT4-fs (loop2): 1 orphan inode deleted
[pid   637] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   639] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   294] umount2("./11/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] lstat("./11/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] umount2("./11/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   639] <... open resumed>)         = 4
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   639] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] openat(AT_FDCWD, "./11/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   294] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./11/file1" <unfinished ...>
[pid   639] <... futex resumed>)        = 1
[pid   637] <... futex resumed>)        = 0
[pid   637] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... rmdir resumed>)        = 0
[pid   637] <... futex resumed>)        = 0
[pid   637] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   294] getdents64(3,  <unfinished ...>
[pid   637] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   294] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   637] <... mprotect resumed>)     = 0
[pid   294] close(3 <unfinished ...>
[pid   637] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   294] <... close resumed>)        = 0
./strace-static-x86_64: Process 657 attached
[pid   294] rmdir("./11" <unfinished ...>
[pid   637] <... clone resumed>, parent_tid=[657], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 657
[pid   657] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   657] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   294] <... rmdir resumed>)        = 0
[pid   637] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   639] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   294] mkdir("./12", 0777 <unfinished ...>
[pid   637] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   657] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   657] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL) = 0
[pid   657] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   294] <... mkdir resumed>)        = 0
[pid   637] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   637] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   657] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   637] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   657] <... open resumed>)         = 5
[pid   294] <... openat resumed>)       = 3
[pid   657] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   637] <... futex resumed>)        = 0
[pid   637] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   637] <... futex resumed>)        = 0
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   637] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   657] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096) = -1 EBADF (Bad file descriptor)
[pid   657] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   637] <... futex resumed>)        = 0
[pid   657] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   637] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   294] <... clone resumed>, child_tidptr=0x5555572875d0) = 658
[pid   637] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   657] <... write resumed>)        = 262144
[pid   657] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   637] <... futex resumed>)        = 0
[   23.549682][  T647] ext4 filesystem being mounted at /root/syzkaller.qF1bbv/10/file1 supports timestamps until 2038 (0x7fffffff)
[   23.568927][  T639] EXT4-fs error (device loop3): ext4_map_blocks:602: inode #3: block 9: comm syz-executor362: lblock 0 mapped to illegal pblock 9 (length 1)
[   23.594386][  T644] EXT4-fs (loop5): 1 orphan inode deleted
[pid   657] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   651] <... ioctl resumed>)        = 0
[pid   651] close(3)                    = 0
[pid   651] mkdir("./file1", 0777)      = 0
[pid   651] mount("/dev/loop4", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue"./strace-static-x86_64: Process 658 attached
 <unfinished ...>
[pid   658] set_robust_list(0x5555572875e0, 24) = 0
[pid   658] chdir("./12")               = 0
[pid   658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   658] setpgid(0, 0)               = 0
[pid   658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   658] write(3, "1000", 4)         = 4
[pid   658] close(3)                    = 0
[pid   658] symlink("/dev/binderfs", "./binderfs") = 0
[pid   658] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f600e00f000
[pid   658] mprotect(0x7f600e010000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   658] clone(child_stack=0x7f600e02f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[659], tls=0x7f600e02f700, child_tidptr=0x7f600e02f9d0) = 659
[pid   658] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   658] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   652] <... ioctl resumed>)        = 0
[pid   652] close(3)                    = 0
[pid   652] mkdir("./file1", 0777)      = 0
[pid   652] mount("/dev/loop0", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   647] <... mount resumed>)        = 0
[pid   647] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   647] chdir("./file1")            = 0
[pid   647] ioctl(4, LOOP_CLR_FD)       = 0
[pid   647] close(4)                    = 0
[pid   647] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   647] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   643] <... futex resumed>)        = 0
[pid   643] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   643] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   647] <... futex resumed>)        = 0
[pid   647] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   647] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   643] <... futex resumed>)        = 0
[pid   647] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   643] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   643] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   647] <... fallocate resumed>)    = 0
[pid   647] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   647] <... futex resumed>)        = 0
[pid   643] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   647] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   643] <... mprotect resumed>)     = 0
[pid   643] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[661], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 661
[pid   643] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   643] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 659 attached
 <unfinished ...>
[pid   659] set_robust_list(0x7f600e02f9e0, 24) = 0
[pid   659] memfd_create("syzkaller", 0) = 3
[pid   659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6005c0f000
[   23.600825][  T639] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5808: Out of memory
[   23.626393][  T639] EXT4-fs error (device loop3): ext4_dirty_inode:6012: inode #16: comm syz-executor362: mark_inode_dirty error
[   23.644103][  T644] ext4 filesystem being mounted at /root/syzkaller.kumyKI/10/file1 supports timestamps until 2038 (0x7fffffff)
[pid   659] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144./strace-static-x86_64: Process 661 attached
 <unfinished ...>
[pid   661] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   661] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[pid   659] <... write resumed>)        = 262144
[pid   661] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] <... futex resumed>)        = 0
[pid   643] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   643] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   661] <... futex resumed>)        = 1
[pid   661] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] munmap(0x7f6005c0f000, 262144) = 0
[pid   659] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   659] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   647] <... futex resumed>)        = 0
[pid   647] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid   647] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   643] <... futex resumed>)        = 0
[pid   647] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   643] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   647] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   643] <... futex resumed>)        = 0
[pid   647] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   643] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   647] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   647] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   643] <... futex resumed>)        = 0
[pid   647] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   643] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   647] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   643] <... futex resumed>)        = 0
[pid   647] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   643] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   659] <... ioctl resumed>)        = 0
[pid   659] close(3)                    = 0
[pid   659] mkdir("./file1", 0777)      = 0
[pid   659] mount("/dev/loop1", "./file1", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_REC, ",errors=continue" <unfinished ...>
[pid   647] <... write resumed>)        = 262144
[pid   647] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] <... futex resumed>)        = 0
[pid   647] <... futex resumed>)        = 1
[pid   643] exit_group(0 <unfinished ...>
[pid   661] <... futex resumed>)        = 230
[pid   643] <... exit_group resumed>)   = ?
[pid   661] +++ exited with 0 +++
[pid   647] +++ exited with 0 +++
[pid   643] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=643, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   295] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   295] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   295] unlink("./10/binderfs")     = 0
[   23.657912][  T652] EXT4-fs (loop0): 1 orphan inode deleted
[   23.660782][  T659] loop1: detected capacity change from 0 to 512
[   23.678323][  T639] ------------[ cut here ]------------
[   23.689981][  T639] kernel BUG at fs/ext4/ext4.h:3355!
[   23.692227][  T651] EXT4-fs (loop4): 1 orphan inode deleted
[   23.695277][  T639] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   23.706640][  T639] CPU: 1 PID: 639 Comm: syz-executor362 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0
[   23.716716][  T639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[   23.726706][  T639] RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30
[   23.732517][  T639] Code: c6 ff e9 b5 fb ff ff e8 6a 0a 85 ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 56 0a 85 ff e9 51 f7 ff ff e8 4c 0a 85 ff <0f> 0b e8 55 03 d0 02 e8 40 0a 85 ff 0f 0b e8 39 0a 85 ff 0f 0b e8
[   23.751959][  T639] RSP: 0018:ffffc900013a7180 EFLAGS: 00010293
[   23.757861][  T639] RAX: ffffffff81eae174 RBX: 0000000000000001 RCX: ffff888118cb2780
[   23.766670][  T639] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
[   23.774461][  T639] RBP: ffffc900013a7290 R08: ffffffff81ead4ab R09: ffffed102410398a
[   23.782302][  T639] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11022c81879
[   23.790093][  T639] R13: 0000000000000001 R14: 1ffff92000274e40 R15: ffff88811640c3c8
[   23.797895][  T639] FS:  00007f600e02f700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   23.806658][  T639] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.813084][  T639] CR2: 00007f600e0d4958 CR3: 000000010cacf000 CR4: 00000000003506a0
[   23.820895][  T639] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.828704][  T639] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.836517][  T639] Call Trace:
[   23.839644][  T639]  <TASK>
[   23.842422][  T639]  ? ext4_handle_error+0x5c9/0x780
[   23.847367][  T639]  ? stack_trace_snprint+0xf0/0xf0
[   23.852315][  T639]  ? ext4_mb_use_inode_pa+0x6e0/0x6e0
[   23.857525][  T639]  ext4_mb_regular_allocator+0x247/0x3810
[   23.863078][  T639]  ? ext4_alloc_file_blocks+0x3d5/0xcd0
[   23.868457][  T639]  ? vfs_fallocate+0x492/0x570
[   23.873125][  T639]  ? do_syscall_64+0x3d/0xb0
[   23.877507][  T639]  ? entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   23.883572][  T639]  ? ext4_mb_normalize_request+0x1830/0x1830
[   23.889381][  T639]  ? ext4_mb_new_blocks+0xd97/0x43f0
[   23.894498][  T639]  ? kmem_cache_alloc+0xf5/0x200
[   23.899272][  T639]  ext4_mb_new_blocks+0xe3c/0x43f0
[   23.904228][  T639]  ? __kasan_kmalloc+0x9/0x10
[   23.908735][  T639]  ? __kmalloc+0x13a/0x270
[   23.912987][  T639]  ? ext4_mb_pa_callback+0xd0/0xd0
[   23.917941][  T639]  ? ext4_ext_search_right+0x4f5/0x900
[   23.924096][  T639]  ? ext4_inode_to_goal_block+0x35c/0x4b0
[   23.929650][  T639]  ? ext4_ext_find_goal+0x117/0x200
[   23.934683][  T639]  ext4_ext_map_blocks+0x1a0d/0x7250
[   23.939809][  T639]  ? debug_smp_processor_id+0x17/0x20
[   23.945021][  T639]  ? ext4_ext_release+0x10/0x10
[   23.949708][  T639]  ? __down_read_common+0xbc6/0x1190
[   23.954820][  T639]  ? __kasan_slab_free+0x11/0x20
[   23.959598][  T639]  ? slab_free_freelist_hook+0xbd/0x190
[   23.964973][  T639]  ? downgrade_write+0x2d0/0x2d0
[   23.969751][  T639]  ? mb_cache_entry_create+0x4de/0x7e0
[   23.975044][  T639]  ? _raw_read_unlock+0x25/0x40
[   23.979730][  T639]  ext4_map_blocks+0xaa7/0x1e30
[   23.984508][  T639]  ? ext4_xattr_get+0x34d/0x810
[   23.989191][  T639]  ? ext4_xattr_security_get+0x32/0x40
[   23.994484][  T639]  ? ext4_issue_zeroout+0x250/0x250
[   23.999519][  T639]  ? ext4_journal_check_start+0x16c/0x230
[   24.005074][  T639]  ? ext4_alloc_file_blocks+0x3ad/0xcd0
[   24.010455][  T639]  ext4_alloc_file_blocks+0x3d5/0xcd0
[   24.015666][  T639]  ? trace_ext4_fallocate_enter+0x160/0x160
[   24.021395][  T639]  ext4_fallocate+0xbe7/0x1f90
[   24.025994][  T639]  ? avc_policy_seqno+0x1b/0x70
[   24.030678][  T639]  ? selinux_file_permission+0x2c4/0x570
[   24.036154][  T639]  ? ext4_ext_truncate+0x240/0x240
[   24.041096][  T639]  ? fsnotify_perm+0x6a/0x5d0
[   24.045609][  T639]  vfs_fallocate+0x492/0x570
[   24.050035][  T639]  __x64_sys_fallocate+0xc0/0x110
[   24.054894][  T639]  do_syscall_64+0x3d/0xb0
[   24.059146][  T639]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.064874][  T639] RIP: 0033:0x7f600e0837e9
[   24.069132][  T639] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 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 b8 ff ff ff f7 d8 64 89 01 48
[   24.088570][  T639] RSP: 002b:00007f600e02f2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[   24.096819][  T639] RAX: ffffffffffffffda RBX: 00007f600e1097a0 RCX: 00007f600e0837e9
[   24.104637][  T639] RDX: 0000000000008947 RSI: 0000000000000000 RDI: 0000000000000004
[   24.112449][  T639] RBP: 00007f600e0d657c R08: 0000000000000000 R09: 0000000000000000
[   24.120249][  T639] R10: 0000000000000007 R11: 0000000000000246 R12: 00007f600e0d5578
[   24.128077][  T639] R13: 0031656c69662f2e R14: 6f6f6c2f7665642f R15: 00007f600e1097a8
[   24.135881][  T639]  </TASK>
[   24.138745][  T639] Modules linked in:
[   24.144457][  T651] ext4 filesystem being mounted at /root/syzkaller.IrUvXE/11/file1 supports timestamps until 2038 (0x7fffffff)
[   24.155243][  T659] EXT4-fs (loop1): 1 orphan inode deleted
[pid   295] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   652] <... mount resumed>)        = 0
[pid   651] <... mount resumed>)        = 0
[pid   644] <... mount resumed>)        = 0
[pid   659] <... mount resumed>)        = 0
[pid   659] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid   659] chdir("./file1")            = 0
[pid   659] ioctl(4, LOOP_CLR_FD)       = 0
[pid   659] close(4 <unfinished ...>
[pid   652] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   651] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   644] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   659] <... close resumed>)        = 0
[pid   659] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] <... futex resumed>)        = 0
[pid   658] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   658] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   659] <... futex resumed>)        = 1
[pid   659] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4
[pid   659] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] <... futex resumed>)        = 0
[pid   658] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   658] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   658] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   658] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[667], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 667
[pid   658] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   658] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   659] <... futex resumed>)        = 1
[pid   659] fallocate(4, 0, 35143, 7)   = 0
[pid   659] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   659] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   652] <... openat resumed>)       = 3
[pid   651] <... openat resumed>)       = 3
[pid   644] <... openat resumed>)       = 3
[pid   652] chdir("./file1" <unfinished ...>
[pid   651] chdir("./file1" <unfinished ...>
[pid   644] chdir("./file1" <unfinished ...>
[pid   652] <... chdir resumed>)        = 0
[pid   651] <... chdir resumed>)        = 0
[pid   644] <... chdir resumed>)        = 0
[pid   652] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   651] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   644] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   652] <... ioctl resumed>)        = 0
[pid   651] <... ioctl resumed>)        = 0
[pid   644] <... ioctl resumed>)        = 0
[   24.156357][  T652] ext4 filesystem being mounted at /root/syzkaller.SN8fLk/12/file1 supports timestamps until 2038 (0x7fffffff)
[   24.162426][  T659] ext4 filesystem being mounted at /root/syzkaller.6GNILo/12/file1 supports timestamps until 2038 (0x7fffffff)
[   24.173993][  T639] ---[ end trace 0da7a39c4d7bdfca ]---
[   24.194613][  T639] RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30
[pid   652] close(4 <unfinished ...>
[pid   651] close(4 <unfinished ...>
[pid   644] close(4 <unfinished ...>
[pid   652] <... close resumed>)        = 0
[pid   651] <... close resumed>)        = 0
[pid   644] <... close resumed>)        = 0
[pid   652] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... futex resumed>)        = 1
[pid   651] <... futex resumed>)        = 1
[pid   650] <... futex resumed>)        = 0
[pid   644] <... futex resumed>)        = 1
[pid   652] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   651] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   650] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   652] <... open resumed>)         = 4
[pid   650] <... futex resumed>)        = 0
[pid   652] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] <... futex resumed>)        = 0
[pid   650] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   652] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   650] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... fallocate resumed>)    = 0
[pid   650] <... futex resumed>)        = 0
[pid   652] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... futex resumed>)        = 0
[pid   650] <... futex resumed>)        = 0
[pid   652] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6005c2e000
[pid   650] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   650] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[668], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 668
[pid   650] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   650] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   645] <... futex resumed>)        = 0
[pid   642] <... futex resumed>)        = 0
[pid   642] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   645] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   642] <... futex resumed>)        = 1
./strace-static-x86_64: Process 667 attached
./strace-static-x86_64: Process 668 attached
[pid   651] <... futex resumed>)        = 0
[pid   645] <... futex resumed>)        = 1
[pid   644] <... futex resumed>)        = 0
[pid   642] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   651] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   645] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   667] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   644] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 <unfinished ...>
[pid   668] set_robust_list(0x7f6005c4e9e0, 24 <unfinished ...>
[pid   644] <... open resumed>)         = 4
[pid   668] <... set_robust_list resumed>) = 0
[pid   651] <... open resumed>)         = 4
[pid   667] <... set_robust_list resumed>) = 0
[pid   668] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   667] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   644] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] <... mount resumed>)        = 0
[pid   667] <... mount resumed>)        = 0
[pid   651] <... futex resumed>)        = 1
[pid   644] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   642] <... futex resumed>)        = 0
[pid   295] <... umount2 resumed>)      = 0
[pid   645] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   642] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   667] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   645] <... futex resumed>)        = 0
[pid   644] fallocate(4, 0, 35143, 7 <unfinished ...>
[pid   642] <... futex resumed>)        = 0
[pid   668] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] <... fallocate resumed>)    = 0
[pid   644] <... fallocate resumed>)    = 0
[pid   645] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   642] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] <... futex resumed>)        = 1
[pid   667] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 0
[pid   650] <... futex resumed>)        = 0
[pid   645] <... futex resumed>)        = 0
[pid   644] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] <... futex resumed>)        = 0
[pid   658] <... futex resumed>)        = 1
[pid   652] <... futex resumed>)        = 0
[pid   650] <... futex resumed>)        = 1
[pid   642] <... futex resumed>)        = 0
[pid   668] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   667] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   658] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   651] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   644] <... futex resumed>)        = 0
[pid   642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   295] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   659] <... open resumed>)         = 5
[pid   652] <... open resumed>)         = 5
[pid   645] <... mmap resumed>)         = 0x7f6005c2e000
[pid   642] <... mmap resumed>)         = 0x7f6005c2e000
[pid   644] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   651] <... futex resumed>)        = 0
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   659] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   645] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   642] mprotect(0x7f6005c2f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   295] lstat("./10/file1",  <unfinished ...>
[pid   659] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 0
[pid   658] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... futex resumed>)        = 1
[pid   650] <... futex resumed>)        = 0
[pid   642] <... mprotect resumed>)     = 0
[pid   659] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   658] <... futex resumed>)        = 0
[pid   652] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   650] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   645] <... mprotect resumed>)     = 0
[pid   642] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   659] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   658] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   650] <... futex resumed>)        = 0
[pid   295] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   659] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   650] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   645] clone(child_stack=0x7f6005c4e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   295] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   652] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 669 attached
[pid   652] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 0
[pid   659] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   652] <... futex resumed>)        = 1
[pid   650] <... futex resumed>)        = 0
[pid   645] <... clone resumed>, parent_tid=[670], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 670
[pid   642] <... clone resumed>, parent_tid=[669], tls=0x7f6005c4e700, child_tidptr=0x7f6005c4e9d0) = 669
[pid   295] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   669] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   658] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   650] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   645] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] <... futex resumed>)        = 0
[pid   642] futex(0x7f600e1097b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   669] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL) = 0
[pid   669] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   669] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 670 attached
 <unfinished ...>
[pid   670] set_robust_list(0x7f6005c4e9e0, 24) = 0
[pid   670] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL) = 0
[pid   670] futex(0x7f600e1097bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   670] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   650] <... futex resumed>)        = 0
[pid   659] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   658] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   645] <... futex resumed>)        = 1
[pid   650] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   642] <... futex resumed>)        = 1
[pid   645] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   642] futex(0x7f600e1097bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   645] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   642] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   295] <... openat resumed>)       = 4
[pid   645] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   642] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] fstat(4,  <unfinished ...>
[pid   659] <... write resumed>)        = 262144
[pid   659] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... write resumed>)        = 262144
[pid   651] <... futex resumed>)        = 0
[pid   645] <... futex resumed>)        = 1
[pid   644] <... futex resumed>)        = 0
[pid   642] <... futex resumed>)        = 1
[pid   295] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   651] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   645] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c <unfinished ...>
[pid   642] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] getdents64(4,  <unfinished ...>
[pid   651] <... open resumed>)         = 5
[pid   644] <... open resumed>)         = 5
[pid   651] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   295] <... getdents64 resumed>0x555557290660 /* 2 entries */, 32768) = 48
[pid   642] <... futex resumed>)        = 0
[pid   651] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   659] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 0
[pid   652] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   295] getdents64(4,  <unfinished ...>
[pid   658] exit_group(0 <unfinished ...>
[pid   670] <... futex resumed>)        = 0
[pid   669] <... futex resumed>)        = 0
[pid   659] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   652] <... futex resumed>)        = 1
[pid   651] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   650] <... futex resumed>)        = 0
[pid   645] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   642] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... getdents64 resumed>0x555557290660 /* 0 entries */, 32768) = 0
[pid   670] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   669] futex(0x7f600e1097b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   667] <... futex resumed>)        = ?
[pid   659] <... futex resumed>)        = ?
[pid   658] <... exit_group resumed>)   = ?
[pid   652] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   651] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   650] exit_group(0 <unfinished ...>
[pid   645] <... futex resumed>)        = 0
[pid   644] <... futex resumed>)        = 0
[pid   642] <... futex resumed>)        = 1
[   24.200439][  T639] Code: c6 ff e9 b5 fb ff ff e8 6a 0a 85 ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 56 0a 85 ff e9 51 f7 ff ff e8 4c 0a 85 ff <0f> 0b e8 55 03 d0 02 e8 40 0a 85 ff 0f 0b e8 39 0a 85 ff 0f 0b e8
[   24.224017][  T639] RSP: 0018:ffffc900013a7180 EFLAGS: 00010293
[   24.233388][  T639] RAX: ffffffff81eae174 RBX: 0000000000000001 RCX: ffff888118cb2780
[pid   295] close(4 <unfinished ...>
[pid   667] +++ exited with 0 +++
[pid   659] +++ exited with 0 +++
[pid   658] +++ exited with 0 +++
[pid   651] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] <... exit_group resumed>)   = ?
[pid   645] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] write(0, "\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48\xb7\x71\xb3\xc3\xb8\x06\x60\x1d\x4b\x7a\x5f\x1e\x7c\xb6\x0a\x34\xda\x12\xb2\x6f\xad\xc9\x46\xcc\xd2\x3b\x6a\xfb\x12\xc1\xce\xe6\x20\x8b\xb8\xae\x2e\x2b\x32\x28\xe7\xeb\x78\x4c\x60\x8b\x9a\x07\xad\x74\x7b\x94\x3a\x77\x03\xd8\xca\xcb\x26\xad\x1e\x02\xca\x87"..., 4096 <unfinished ...>
[pid   642] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   651] <... futex resumed>)        = 0
[pid   645] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=658, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   668] <... futex resumed>)        = ?
[pid   645] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   668] +++ exited with 0 +++
[pid   652] <... futex resumed>)        = ?
[pid   645] <... futex resumed>)        = 0
[pid   644] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid   295] rmdir("./10/file1" <unfinished ...>
[pid   645] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] +++ exited with 0 +++
[pid   650] +++ exited with 0 +++
[pid   295] <... rmdir resumed>)        = 0
[pid   644] <... futex resumed>)        = 1
[pid   642] <... futex resumed>)        = 0
[pid   642] futex(0x7f600e1097a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   642] futex(0x7f600e1097ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5d\x0f\x1b\xc7\x13\x63\xce\x46\xd7\xd6\x8a\x9a\x08\x09\x94\xde\x4f\x56\xb8\x75\x79\xb6\x4c\x51\x1a\xae\x21\xa9\x1e\xb2\xdb\x3a\x04\x37\xf8\x48"..., 22455190 <unfinished ...>
[pid   295] getdents64(3,  <unfinished ...>
[pid   294] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=650, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   651] <... write resumed>)        = 262144
[pid   644] <... write resumed>)        = 262144
[pid   295] <... getdents64 resumed>0x555557288620 /* 0 entries */, 32768) = 0
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   293] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   651] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7f600e1097ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   294] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   651] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   644] <... futex resumed>)        = 1
[pid   642] <... futex resumed>)        = 0
[pid   651] futex(0x7f600e1097a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   645] exit_group(0 <unfinished ...>
[pid   642] exit_group(0 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   294] <... openat resumed>)       = 3
[pid   293] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   645] <... exit_group resumed>)   = ?
[pid   642] <... exit_group resumed>)   = ?
[pid   670] <... futex resumed>)        = ? <unavailable>
[pid   295] rmdir("./10" <unfinished ...>
[pid   294] fstat(3,  <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   669] <... futex resumed>)        = ?
[pid   651] <... futex resumed>)        = ?
[pid   644] +++ exited with 0 +++
[pid   295] <... rmdir resumed>)        = 0
[pid   294] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   293] fstat(3,  <unfinished ...>
[pid   670] +++ exited with 0 +++
[pid   669] +++ exited with 0 +++
[pid   642] +++ exited with 0 +++
[pid   651] +++ exited with 0 +++
[pid   645] +++ exited with 0 +++
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=642, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   298] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   298] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] getdents64(3, 0x555557288620 /* 4 entries */, 32768) = 112
[pid   298] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   298] unlink("./10/binderfs")     = 0
[pid   298] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=645, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   293] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] mkdir("./11", 0777 <unfinished ...>
[pid   294] getdents64(3,  <unfinished ...>
[pid   293] getdents64(3,  <unfinished ...>
[pid   295] <... mkdir resumed>)        = 0
[pid   294] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   293] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   293] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] <... openat resumed>)       = 3
[   24.254148][  T639] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
[   24.273963][  T639] RBP: ffffc900013a7290 R08: ffffffff81ead4ab R09: ffffed102410398a
[   24.284372][  T639] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11022c81879
[   24.292549][  T639] R13: 0000000000000001 R14: 1ffff92000274e40 R15: ffff88811640c3c8
[   24.300733][  T639] FS:  00007f600e02f700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] fstat(3,  <unfinished ...>
[pid   293] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   297] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   294] lstat("./12/binderfs",  <unfinished ...>
[pid   293] lstat("./12/binderfs",  <unfinished ...>
[pid   297] getdents64(3,  <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   294] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] <... getdents64 resumed>0x555557288620 /* 4 entries */, 32768) = 112
[pid   295] <... close resumed>)        = 0
[pid   294] unlink("./12/binderfs" <unfinished ...>
[pid   297] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... unlink resumed>)       = 0
[pid   297] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid   294] umount2("./12/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   297] lstat("./11/binderfs",  <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x5555572875d0) = 672
[pid   293] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
./strace-static-x86_64: Process 672 attached
[pid   297] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[pid   297] unlink("./11/binderfs")     = 0
[pid   297] umount2("./11/file1", MNT_DETACH|UMOUNT_NOFOLLOW <unfinished ...>
[pid   672] set_robust_list(0x5555572875e0, 24 <unfinished ...>
[pid   298] <... umount2 resumed>)      = 0
[pid   293] unlink("./12/binderfs" <unfinished ...>
[pid   298] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] lstat("./10/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] umount2("./10/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   298] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[pid   298] getdents64(4, 0x555557290660 /* 2 entries */, 32768) = 48
[pid   298] getdents64(4, 0x555557290660 /* 0 entries */, 32768) = 0
[pid   298] close(4)                    = 0
[pid   298] rmdir("./10/file1")         = 0
[pid   298] getdents64(3, 0x555557288620 /* 0 entries */, 32768) = 0
[pid   298] close(3)                    = 0
[pid   298] rmdir("./10")               = 0
[pid   298] mkdir("./11", 0777)         = 0
[pid   298] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   298] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   298] close(3)                    = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572875d0) = 673
./strace-static-x86_64: Process 673 attached
[pid   672] <... set_robust_list resumed>) = 0
[pid   293] <... unlink resumed>)       = 0
[   24.319485][  T639] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.326400][  T639] CR2: 00005555572872b8 CR3: 000000010cacf000 CR4: 00000000003506a0
[   24.335187][  T639] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.343360][  T639] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.351697][  T639] Kernel panic - not syncing: Fatal exception
[   24.357764][  T639] Kernel Offset: disabled
[   24.361898][  T639] Rebooting in 86400 seconds..